{"transactions":[{"id":4626138,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-09-24T20:24:10.000Z","date":"2026-09-22","kind":"gift","planned":false,"acquired":true,"shares":150000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Shares are held by The DPB 2026 Grantor Retained Annuity Trust, of which the reporting person is the sole trustee and annuitant."}],"balance_after":150000,"source":{"system":"sec-edgar","filing":"0001193125-26-401078","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526401078/ownership.xml","form_type":"4"}},{"id":4626137,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-09-24T20:24:10.000Z","date":"2026-09-22","kind":"gift","planned":false,"acquired":false,"shares":150000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents shares transferred by the reporting person to The DPB 2026 Grantor Retained Annuity Trust, of which the reporting person is the sole trustee and annuitant."}],"balance_after":948247,"source":{"system":"sec-edgar","filing":"0001193125-26-401078","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526401078/ownership.xml","form_type":"4"}},{"id":4626136,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-09-24T20:24:10.000Z","date":"2026-09-22","kind":"gift","planned":false,"acquired":true,"shares":150000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held by The KMB 2026 Grantor Retained Annuity Trust, of which the reporting person's immediate family member is the sole trustee and annuitant."}],"balance_after":150000,"source":{"system":"sec-edgar","filing":"0001193125-26-401078","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526401078/ownership.xml","form_type":"4"}},{"id":4626135,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-09-24T20:24:10.000Z","date":"2026-09-22","kind":"gift","planned":false,"acquired":false,"shares":150000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares transferred by the reporting person to The KMB 2026 Grantor Retained Annuity Trust, of which the reporting person's immediate family member is the sole trustee and annuitant."}],"balance_after":1098247,"source":{"system":"sec-edgar","filing":"0001193125-26-401078","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526401078/ownership.xml","form_type":"4"}},{"id":4617990,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24313,"kind":"organization","name":"TPG GP A, LLC","position":1,"cik":"0001903793","reported_name":"TPG GP A, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24314,"kind":"person","name":"COULTER JAMES G","position":2,"cik":"0001099776","reported_name":"COULTER JAMES G","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":13344,"kind":"person","name":"WINKELRIED JON","position":3,"cik":"0001366946","reported_name":"WINKELRIED JON","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-09-15T20:16:04.000Z","date":"2026-09-11","kind":"sale","planned":false,"acquired":false,"shares":18409705,"price":12.29,"value":226255274.45,"ownership":{"direct":false,"nature":"See Explanation of Responses"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Each of James G. Coulter and Jon Winkelried own entities that control TPG GP A, LLC (together with Messrs. Coulter and Winkelried, the \"Reporting Persons\"), which exercises direct or indirect control over entities that collectively hold 100% of the shares of Class B common stock (which represents a majority of the combined voting power of the common stock) of TPG Inc., which is the sole member of TPG GPCo, LLC, which is the sole member of TPG Holdings II-A, LLC, which is the general partner of TPG Operating Group II, L.P., which is the sole member of TPG Holdings I-A, LLC, which is the general partner of TPG Operating Group I, L.P., which is the sole member of TPG GenPar VIII Advisors, LLC, which is the general partner of TPG GenPar VIII, L.P., which is the general partner of TPG VIII Lynnwood Holdings Aggregation, L.P. (\"TPG VIII Lynnwood\"), which directly holds 79,691,702 shares of Common Stock of LifeStance Health Group, Inc."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Because of the relationship between the Reporting Persons and TPG VIII Lynnwood, the Reporting Persons may be deemed to beneficially own the securities reported herein to the extent of the greater of their respective direct or indirect pecuniary interests in the profits or capital accounts of TPG VIII Lynnwood. Each of TPG VIII Lynnwood and each Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of TPG VIII Lynnwood's or such Reporting Person's pecuniary interest therein, if any."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended (the \"Exchange Act\"), this filing shall not be deemed an admission that the Reporting Persons are, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owners of any equity securities in excess of their respective pecuniary interests."}],"balance_after":79691702,"source":{"system":"sec-edgar","filing":"0001999371-26-020559","document":"tpg-form4_091126.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1903793/000199937126020559/tpg-form4_091126.xml","form_type":"4"}},{"id":4672,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-09-04T20:52:26.000Z","date":"2026-09-02","kind":"other","planned":false,"acquired":false,"shares":150000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of the issuer transferred to a family member of the reporting person for no value for estate planning purposes."}],"balance_after":1248247,"source":{"system":"sec-edgar","filing":"0001193125-26-383785","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526383785/ownership.xml","form_type":"4"}},{"id":4671,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10161,"kind":"person","name":"Paunovich Vukasin","position":1,"cik":"0001938690","reported_name":"Paunovich Vukasin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common Stock","published_at":"2026-09-04T20:51:58.000Z","date":"2026-09-02","kind":"sale","planned":false,"acquired":false,"shares":42067,"price":12.87,"value":541402.29,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $12.86 to $12.905 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."}],"balance_after":205379,"source":{"system":"sec-edgar","filing":"0001193125-26-383783","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1938690/000119312526383783/ownership.xml","form_type":"4"}},{"id":674518,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2026-08-26T21:17:05.000Z","date":"2026-08-24","kind":"tax_withholding","planned":false,"acquired":false,"shares":8156,"price":12.16,"value":99176.96,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units (\"RSUs\") that vested on August 24, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":413881,"source":{"system":"sec-edgar","filing":"0001193125-26-368927","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526368927/ownership.xml","form_type":"4"}},{"id":683564,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":21230,"kind":"person","name":"DeLuca Teresa","position":1,"cik":"0001685627","reported_name":"DeLuca Teresa","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-18T21:13:00.000Z","date":"2026-08-14","kind":"sale","planned":false,"acquired":false,"shares":7500,"price":12.68,"value":95100.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Required number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. This sale was made to satisfy tax withholding obligations through a \"sell to cover\" transaction and does not represent a discretionary trade by the Reporting Person."},{"field":"shares","element":"transactionShares","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $12.68 to $12.695 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."}],"balance_after":97093,"source":{"system":"sec-edgar","filing":"0001193125-26-355681","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1685627/000119312526355681/ownership.xml","form_type":"4"}},{"id":686912,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":21230,"kind":"person","name":"DeLuca Teresa","position":1,"cik":"0001685627","reported_name":"DeLuca Teresa","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-14T21:48:20.000Z","date":"2026-08-13","kind":"sale","planned":false,"acquired":false,"shares":20441,"price":12.23,"value":249993.43,"ownership":{"direct":true},"balance_after":104593,"source":{"system":"sec-edgar","filing":"0001193125-26-352699","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1685627/000119312526352699/ownership.xml","form_type":"4"}},{"id":687927,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":23695,"kind":"person","name":"Burdick Kenneth A","position":1,"cik":"0001498992","reported_name":"Burdick Kenneth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-08-13T21:02:08.000Z","date":"2026-08-11","kind":"sale","planned":false,"acquired":false,"shares":500000,"price":11.51,"value":5755000.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $11.50 to $11.665 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."}],"balance_after":2970810,"source":{"system":"sec-edgar","filing":"0001193125-26-349559","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1498992/000119312526349559/ownership.xml","form_type":"4"}},{"id":688751,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10161,"kind":"person","name":"Paunovich Vukasin","position":1,"cik":"0001938690","reported_name":"Paunovich Vukasin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common Stock","published_at":"2026-08-12T21:07:20.000Z","date":"2026-08-10","kind":"sale","planned":true,"acquired":false,"shares":44394,"price":10.85,"value":481674.9,"ownership":{"direct":true},"balance_after":247446,"source":{"system":"sec-edgar","filing":"0001193125-26-347131","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526347131/ownership.xml","form_type":"4"}},{"id":689793,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24313,"kind":"organization","name":"TPG GP A, LLC","position":1,"cik":"0001903793","reported_name":"TPG GP A, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24314,"kind":"person","name":"COULTER JAMES G","position":2,"cik":"0001099776","reported_name":"COULTER JAMES G","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":13344,"kind":"person","name":"WINKELRIED JON","position":3,"cik":"0001366946","reported_name":"WINKELRIED JON","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-08-12T21:02:11.000Z","date":"2026-08-10","kind":"sale","planned":false,"acquired":false,"shares":13643207,"price":10.62,"value":144890858.34,"ownership":{"direct":false,"nature":"See Explanation of Responses"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Each of James G. Coulter and Jon Winkelried own entities that control TPG GP A, LLC (together with Messrs. Coulter and Winkelried, the \"Reporting Persons\"), which exercises direct or indirect control over entities that collectively hold 100% of the shares of Class B common stock (which represents a majority of the combined voting power of the common stock) of TPG Inc., which is the sole member of TPG GPCo, LLC, which is the sole member of TPG Holdings II-A, LLC, which is the general partner of TPG Operating Group II, L.P., which is the sole member of TPG Holdings I-A, LLC, which is the general partner of TPG Operating Group I, L.P., which is the sole member of TPG GenPar VIII Advisors, LLC, which is the general partner of TPG GenPar VIII, L.P., which is the general partner of TPG VIII Lynnwood Holdings Aggregation, L.P. (\"TPG VIII Lynnwood\"), which directly holds 98,101,407 shares of Common Stock of LifeStance Health Group, Inc."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Because of the relationship between the Reporting Persons and TPG VIII Lynnwood, the Reporting Persons may be deemed to beneficially own the securities reported herein to the extent of the greater of their respective direct or indirect pecuniary interests in the profits or capital accounts of TPG VIII Lynnwood. Each of TPG VIII Lynnwood and each Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of TPG VIII Lynnwood's or such Reporting Person's pecuniary interest therein, if any."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended (the \"Exchange Act\"), this filing shall not be deemed an admission that the Reporting Persons are, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owners of any equity securities in excess of their respective pecuniary interests."}],"balance_after":98101407,"source":{"system":"sec-edgar","filing":"0001999371-26-017719","document":"lifestance-form4_081226.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1099776/000199937126017719/lifestance-form4_081226.xml","form_type":"4"}},{"id":689509,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24233,"kind":"person","name":"Miller Lisa K","position":1,"cik":"0002036749","reported_name":"Miller Lisa K","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2026-08-12T20:59:33.000Z","date":"2026-08-10","kind":"sale","planned":true,"acquired":false,"shares":47912,"price":10.85,"value":519845.2,"ownership":{"direct":true},"balance_after":281289,"source":{"system":"sec-edgar","filing":"0001193125-26-347084","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2036749/000119312526347084/ownership.xml","form_type":"4"}},{"id":709703,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":23695,"kind":"person","name":"Burdick Kenneth A","position":1,"cik":"0001498992","reported_name":"Burdick Kenneth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-14T22:12:06.000Z","date":"2026-07-06","kind":"grant","planned":false,"acquired":true,"shares":45495,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 45,495 restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":3470810,"source":{"system":"sec-edgar","filing":"0001193125-26-303501","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1498992/000119312526303501/ownership.xml","form_type":"4"}},{"id":713635,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31700,"kind":"person","name":"Palmer Eric P","position":1,"cik":"0001710190","reported_name":"Palmer Eric P","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-07T23:41:51.000Z","date":"2026-07-02","kind":"grant","planned":false,"acquired":true,"shares":17746,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 17,746 restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":89174,"source":{"system":"sec-edgar","filing":"0001193125-26-297811","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1710190/000119312526297811/ownership.xml","form_type":"4"}},{"id":713705,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-07T23:41:27.000Z","date":"2026-07-02","kind":"grant","planned":false,"acquired":true,"shares":17746,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 17,746 restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":75365,"source":{"system":"sec-edgar","filing":"0001193125-26-297810","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526297810/ownership.xml","form_type":"4"}},{"id":713604,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31690,"kind":"person","name":"Personette Sarah","position":1,"cik":"0001667675","reported_name":"Personette Sarah","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-07T23:40:41.000Z","date":"2026-07-02","kind":"grant","planned":false,"acquired":true,"shares":17746,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 17,746 restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":92512,"source":{"system":"sec-edgar","filing":"0001193125-26-297809","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1667675/000119312526297809/ownership.xml","form_type":"4"}},{"id":713619,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":21230,"kind":"person","name":"DeLuca Teresa","position":1,"cik":"0001685627","reported_name":"DeLuca Teresa","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-07T23:38:47.000Z","date":"2026-07-02","kind":"grant","planned":false,"acquired":true,"shares":17746,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 17,746 restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":125034,"source":{"system":"sec-edgar","filing":"0001193125-26-297802","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1685627/000119312526297802/ownership.xml","form_type":"4"}},{"id":713312,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31607,"kind":"person","name":"Justice Thurman","position":1,"cik":"0002141669","reported_name":"Justice Thurman","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-07T23:36:00.000Z","date":"2026-07-02","kind":"grant","planned":false,"acquired":true,"shares":35492,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 35,492 restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":35492,"source":{"system":"sec-edgar","filing":"0001193125-26-297800","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526297800/ownership.xml","form_type":"4"}},{"id":713311,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31609,"kind":"person","name":"Goltermann Lori","position":1,"cik":"0002062798","reported_name":"Goltermann Lori","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-07T23:34:53.000Z","date":"2026-07-02","kind":"grant","planned":false,"acquired":true,"shares":35492,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 35,492 restricted stock units (\"RSUs\"). Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":35492,"source":{"system":"sec-edgar","filing":"0001193125-26-297799","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526297799/ownership.xml","form_type":"4"}},{"id":722914,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-30T20:52:48.000Z","date":"2026-06-26","kind":"sale","planned":true,"acquired":false,"shares":447169,"price":10.13,"value":4529821.97,"ownership":{"direct":false,"nature":"Shama LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $10.00 to $10.295 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act or for any other purpose."}],"balance_after":656560,"source":{"system":"sec-edgar","filing":"0001193125-26-290752","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526290752/ownership.xml","form_type":"4"}},{"id":722913,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-06-30T20:52:48.000Z","date":"2026-06-26","kind":"sale","planned":true,"acquired":false,"shares":447168,"price":10.13,"value":4529811.84,"ownership":{"direct":false,"nature":"Vitthal LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $10.00 to $10.295 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act of 1934 (the \"Exchange Act\") or for any other purpose."}],"balance_after":539763,"source":{"system":"sec-edgar","filing":"0001193125-26-290752","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526290752/ownership.xml","form_type":"4"}},{"id":737318,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10161,"kind":"person","name":"Paunovich Vukasin","position":1,"cik":"0001938690","reported_name":"Paunovich Vukasin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common Stock","published_at":"2026-06-16T00:41:51.000Z","date":"2026-06-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":17456,"price":8.61,"value":150296.16,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units (\"RSUs\") that vested on June 11, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":291840,"source":{"system":"sec-edgar","filing":"0001193125-26-271521","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526271521/ownership.xml","form_type":"4"}},{"id":779382,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-14T21:30:14.000Z","date":"2026-05-12","kind":"sale","planned":false,"acquired":false,"shares":287517,"price":8.02,"value":2305886.34,"ownership":{"direct":false,"nature":"Shama LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act or for any other purpose."}],"balance_after":1103729,"source":{"system":"sec-edgar","filing":"0001193125-26-224379","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526224379/ownership.xml","form_type":"4"}},{"id":779381,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-14T21:30:14.000Z","date":"2026-05-12","kind":"sale","planned":false,"acquired":false,"shares":287517,"price":8.02,"value":2305886.34,"ownership":{"direct":false,"nature":"Vitthal LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act of 1934 (the \"Exchange Act\") or for any other purpose."}],"balance_after":986931,"source":{"system":"sec-edgar","filing":"0001193125-26-224379","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526224379/ownership.xml","form_type":"4"}},{"id":779379,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":47371,"kind":"person","name":"Shuey Eric","position":1,"cik":"0001864362","reported_name":"Shuey Eric","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-14T21:30:13.000Z","date":"2026-05-12","kind":"sale","planned":false,"acquired":false,"shares":243362,"price":8.02,"value":1951763.24,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Shares held of record by the Eric Shuey Gift Trust. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of Securities Exchange Act of 1934 or for any other purpose."}],"balance_after":867562,"source":{"system":"sec-edgar","filing":"0001193125-26-224378","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1864362/000119312526224378/ownership.xml","form_type":"4"}},{"id":778552,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":47208,"kind":"person","name":"BLACK DARREN M.","position":1,"cik":"0001843861","reported_name":"BLACK DARREN M.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-14T21:30:09.000Z","date":"2026-05-12","kind":"sale","planned":false,"acquired":false,"shares":5899661,"price":8.02,"value":47315281.22,"ownership":{"direct":false,"nature":"See Footnotes."},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents 3,612,708 shares sold by Summit Partners Growth Equity Fund IX-A, L.P., 2,255,726 shares sold by Summit Partners Growth Equity Fund IX-B, L.P., 25,218 shares sold by Summit Investors GE IX/VC IV, LLC, 3,371 shares sold by Summit Partners Entrepreneur Advisors Fund II, L.P. and 2,638 shares sold by Summit Investors GE IX/VC IV (UK), L.P."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The reported securities are held as follows: 14,274,150 shares in the name of Summit Partners Growth Equity Fund IX-A, L.P.; 8,912,582 shares in the name of Summit Partners Growth Equity Fund IX-B, L.P.; 99,639 shares in the name of Summit Investors GE IX/VC IV, LLC; 13,320 shares in the name of Summit Partners Entrepreneur Advisors Fund II, L.P.; and 10,424 shares in the name of Summit Investors GE IX/ VC IV (UK), L.P."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Darren Black is a Managing Director and Member of Summit Master Company, LLC, the general partner of Summit Partners, L.P. Summit Partners, L.P. is the managing member of Summit Partners GE IX, LLC, which is general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. and Summit Partners Growth Equity Fund IX-B, L.P. Summit Master Company, LLC is (i) the sole member of Summit Partners Entrepreneur Advisors GP II, LLC, which is the general partner of Summit Partners Entrepreneur Advisors Fund II, L.P. and (ii) the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC, and the general partner of Summit Investors GE IX/VC IV (UK), L.P."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Summit Master Company, LLC, as the sole member of Summit Partners Entrepreneur Advisors GP II, LLC and the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its investment committee responsible for voting and investment decisions with respect to LifeStance Health Group, Inc. Summit Partners, L.P., through a three person investment committee, currently composed of Peter Y. Chung, Darren M. Black and Craig D. Frances, has voting and dispositive authority over the shares held by each of these entities and therefore beneficially owns such shares. Each of the Summit Funds, Mr. Chung, Mr. Black and Dr. Frances disclaim beneficial ownership of the shares, except, in each case, to the extent of such person's or entity's pecuniary interest therein."}],"balance_after":23310115,"source":{"system":"sec-edgar","filing":"0001193125-26-224376","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1843861/000119312526224376/ownership.xml","form_type":"4"}},{"id":779787,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24313,"kind":"organization","name":"TPG GP A, LLC","position":1,"cik":"0001903793","reported_name":"TPG GP A, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24314,"kind":"person","name":"COULTER JAMES G","position":2,"cik":"0001099776","reported_name":"COULTER JAMES G","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":13344,"kind":"person","name":"WINKELRIED JON","position":3,"cik":"0001366946","reported_name":"WINKELRIED JON","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-05-14T20:07:30.000Z","date":"2026-05-12","kind":"sale","planned":false,"acquired":false,"shares":28281943,"price":8.02,"value":226821182.86,"ownership":{"direct":false,"nature":"See Explanation of Responses"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Each of James G. Coulter and Jon Winkelried own entities that control TPG GP A, LLC (together with Messrs. Coulter and Winkelried, the \"Reporting Persons\"), which exercises direct or indirect control over entities that collectively hold 100% of the shares of Class B common stock (which represents a majority of the combined voting power of the common stock) of TPG Inc., which is the sole member of TPG GPCo, LLC, which is the sole member of TPG Holdings II-A, LLC, which is the general partner of TPG Operating Group II, L.P., which is the sole member of TPG Holdings I-A, LLC, which is the general partner of TPG Operating Group I, L.P., which is the sole member of TPG GenPar VIII Advisors, LLC, which is the general partner of TPG GenPar VIII, L.P., which is the general partner of TPG VIII Lynnwood Holdings Aggregation, L.P. (\"TPG VIII Lynnwood\"), which directly holds 111,744,614 shares of Common Stock of LifeStance Health Group, Inc."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Because of the relationship between the Reporting Persons and TPG VIII Lynnwood, the Reporting Persons may be deemed to beneficially own the securities reported herein to the extent of the greater of their respective direct or indirect pecuniary interests in the profits or capital accounts of TPG VIII Lynnwood. Each of TPG VIII Lynnwood and each Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of TPG VIII Lynnwood's or such Reporting Person's pecuniary interest therein, if any."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended (the \"Exchange Act\"), this filing shall not be deemed an admission that the Reporting Persons are, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owners of any equity securities in excess of their respective pecuniary interests."}],"balance_after":111744614,"source":{"system":"sec-edgar","filing":"0001999371-26-010737","document":"lfst-form4_051226.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1099776/000199937126010737/lfst-form4_051226.xml","form_type":"4"}},{"id":784929,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-11T21:37:20.000Z","date":"2026-05-07","kind":"sale","planned":true,"acquired":false,"shares":37500,"price":8.55,"value":320625.0,"ownership":{"direct":false,"nature":"Shama LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $8.40 to $8.89 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act or for any other purpose."}],"balance_after":1353746,"source":{"system":"sec-edgar","filing":"0001193125-26-217216","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526217216/ownership.xml","form_type":"4"}},{"id":784928,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-11T21:37:20.000Z","date":"2026-05-07","kind":"sale","planned":true,"acquired":false,"shares":37500,"price":8.55,"value":320625.0,"ownership":{"direct":false,"nature":"Vitthal LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $8.40 to $8.89 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act of 1934 (the \"Exchange Act\") or for any other purpose."}],"balance_after":1236948,"source":{"system":"sec-edgar","filing":"0001193125-26-217216","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526217216/ownership.xml","form_type":"4"}},{"id":800118,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-27T20:22:16.000Z","date":"2026-04-24","kind":"sale","planned":true,"acquired":false,"shares":31074,"price":7.05,"value":219071.7,"ownership":{"direct":false,"nature":"Shama LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.095 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act or for any other purpose."}],"balance_after":1391246,"source":{"system":"sec-edgar","filing":"0001193125-26-182153","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526182153/ownership.xml","form_type":"4"}},{"id":800117,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-27T20:22:16.000Z","date":"2026-04-24","kind":"sale","planned":true,"acquired":false,"shares":31073,"price":7.05,"value":219064.65,"ownership":{"direct":false,"nature":"Vitthal LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.095 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act of 1934 (the \"Exchange Act\") or for any other purpose."}],"balance_after":1274448,"source":{"system":"sec-edgar","filing":"0001193125-26-182153","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526182153/ownership.xml","form_type":"4"}},{"id":800116,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-27T20:22:16.000Z","date":"2026-04-23","kind":"sale","planned":true,"acquired":false,"shares":3876,"price":7,"value":27132.0,"ownership":{"direct":false,"nature":"Shama LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.005 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act or for any other purpose."}],"balance_after":1422320,"source":{"system":"sec-edgar","filing":"0001193125-26-182153","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526182153/ownership.xml","form_type":"4"}},{"id":800115,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-27T20:22:16.000Z","date":"2026-04-23","kind":"sale","planned":true,"acquired":false,"shares":3876,"price":7,"value":27132.0,"ownership":{"direct":false,"nature":"Vitthal LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.005 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act of 1934 (the \"Exchange Act\") or for any other purpose."}],"balance_after":1305521,"source":{"system":"sec-edgar","filing":"0001193125-26-182153","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526182153/ownership.xml","form_type":"4"}},{"id":801940,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-23T20:25:41.000Z","date":"2026-04-21","kind":"sale","planned":true,"acquired":false,"shares":2550,"price":7.01,"value":17875.5,"ownership":{"direct":false,"nature":"Shama LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.02 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act or for any other purpose."}],"balance_after":1426196,"source":{"system":"sec-edgar","filing":"0001193125-26-173787","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526173787/ownership.xml","form_type":"4"}},{"id":801939,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-23T20:25:41.000Z","date":"2026-04-21","kind":"sale","planned":true,"acquired":false,"shares":2551,"price":7.01,"value":17882.51,"ownership":{"direct":false,"nature":"Vitthal LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.02 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act of 1934 (the \"Exchange Act\") or for any other purpose."}],"balance_after":1309397,"source":{"system":"sec-edgar","filing":"0001193125-26-173787","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312526173787/ownership.xml","form_type":"4"}},{"id":816816,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":53874,"kind":"person","name":"Pardo Ryan","position":1,"cik":"0001865531","reported_name":"Pardo Ryan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-04-03T22:49:02.000Z","date":"2026-04-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":9376,"price":6.37,"value":59725.12,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units (\"RSUs\") that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":1093366,"source":{"system":"sec-edgar","filing":"0001193125-26-142498","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1865531/000119312526142498/ownership.xml","form_type":"4"}},{"id":827515,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":55871,"kind":"person","name":"McGroarty Ryan","position":1,"cik":"0002059196","reported_name":"McGroarty Ryan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-26T09:22:32.000Z","date":"2026-03-24","kind":"tax_withholding","planned":false,"acquired":false,"shares":24255,"price":6.45,"value":156444.75,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units (\"RSUs\") that vested on March 24, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":772235,"source":{"system":"sec-edgar","filing":"0001193125-26-125289","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2059196/000119312526125289/ownership.xml","form_type":"4"}},{"id":833773,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":55871,"kind":"person","name":"McGroarty Ryan","position":1,"cik":"0002059196","reported_name":"McGroarty Ryan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-19T16:52:36.000Z","date":"2026-03-17","kind":"tax_withholding","planned":false,"acquired":false,"shares":47594,"price":6.89,"value":327922.66,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units (\"RSUs\") that vested on March 17, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":796490,"source":{"system":"sec-edgar","filing":"0001193125-26-116133","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2059196/000119312526116133/ownership.xml","form_type":"4"}},{"id":848637,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":23695,"kind":"person","name":"Burdick Kenneth A","position":1,"cik":"0001498992","reported_name":"Burdick Kenneth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-03-11T23:07:25.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":278192,"price":6.91,"value":1922306.72,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F5","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":3425315,"source":{"system":"sec-edgar","filing":"0001193125-26-102657","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1498992/000119312526102657/ownership.xml","form_type":"4"}},{"id":848636,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":23695,"kind":"person","name":"Burdick Kenneth A","position":1,"cik":"0001498992","reported_name":"Burdick Kenneth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-03-11T23:07:25.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":706960,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Represents PSUs previously granted to the Reporting Person on February 27, 2025, which vested on March 9, 2026."}],"balance_after":3703507,"source":{"system":"sec-edgar","filing":"0001193125-26-102657","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1498992/000119312526102657/ownership.xml","form_type":"4"}},{"id":848635,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":23695,"kind":"person","name":"Burdick Kenneth A","position":1,"cik":"0001498992","reported_name":"Burdick Kenneth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-03-11T23:07:25.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":13201,"price":6.91,"value":91218.91,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":2996547,"source":{"system":"sec-edgar","filing":"0001193125-26-102657","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1498992/000119312526102657/ownership.xml","form_type":"4"}},{"id":848634,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":23695,"kind":"person","name":"Burdick Kenneth A","position":1,"cik":"0001498992","reported_name":"Burdick Kenneth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-03-11T23:07:25.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":33544,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents performance-based restricted stock units (\"PSUs\") previously granted to the Reporting Person on March 6, 2025, which vested on March 9, 2026."}],"balance_after":3009748,"source":{"system":"sec-edgar","filing":"0001193125-26-102657","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1498992/000119312526102657/ownership.xml","form_type":"4"}},{"id":848633,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":23695,"kind":"person","name":"Burdick Kenneth A","position":1,"cik":"0001498992","reported_name":"Burdick Kenneth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-03-11T23:07:25.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":35816,"price":6.91,"value":247488.56,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units (\"RSUs\") that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":2976204,"source":{"system":"sec-edgar","filing":"0001193125-26-102657","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1498992/000119312526102657/ownership.xml","form_type":"4"}},{"id":849108,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24233,"kind":"person","name":"Miller Lisa K","position":1,"cik":"0002036749","reported_name":"Miller Lisa K","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2026-03-11T23:02:52.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":13446,"price":6.91,"value":92911.86,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":329201,"source":{"system":"sec-edgar","filing":"0001193125-26-102651","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2036749/000119312526102651/ownership.xml","form_type":"4"}},{"id":849107,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24233,"kind":"person","name":"Miller Lisa K","position":1,"cik":"0002036749","reported_name":"Miller Lisa K","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2026-03-11T23:02:52.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":26836,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents performance-based restricted stock units (\"PSUs\") previously granted to the Reporting Person on March 6, 2025, which vested on March 9, 2026."}],"balance_after":342647,"source":{"system":"sec-edgar","filing":"0001193125-26-102651","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2036749/000119312526102651/ownership.xml","form_type":"4"}},{"id":849106,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24233,"kind":"person","name":"Miller Lisa K","position":1,"cik":"0002036749","reported_name":"Miller Lisa K","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Operating Officer"}}],"security":"Common Stock","published_at":"2026-03-11T23:02:52.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":14766,"price":6.91,"value":102033.06,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units (\"RSUs\") that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":315811,"source":{"system":"sec-edgar","filing":"0001193125-26-102651","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2036749/000119312526102651/ownership.xml","form_type":"4"}},{"id":847930,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2026-03-11T23:00:24.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":25024,"price":6.91,"value":172915.84,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F5","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":422037,"source":{"system":"sec-edgar","filing":"0001193125-26-102646","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526102646/ownership.xml","form_type":"4"}},{"id":847929,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2026-03-11T23:00:24.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":59789,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Represents PSUs previously granted to the Reporting Person on February 27, 2025, which vested on March 9, 2026."}],"balance_after":447061,"source":{"system":"sec-edgar","filing":"0001193125-26-102646","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526102646/ownership.xml","form_type":"4"}},{"id":847928,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2026-03-11T23:00:24.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":11232,"price":6.91,"value":77613.12,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":387272,"source":{"system":"sec-edgar","filing":"0001193125-26-102646","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526102646/ownership.xml","form_type":"4"}},{"id":847927,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2026-03-11T23:00:24.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":26836,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents performance-based restricted stock units (\"PSUs\") previously granted to the Reporting Person on March 6, 2025, which vested on March 9, 2026."}],"balance_after":398504,"source":{"system":"sec-edgar","filing":"0001193125-26-102646","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526102646/ownership.xml","form_type":"4"}},{"id":847926,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2026-03-11T23:00:24.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":8707,"price":6.91,"value":60165.37,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units (\"RSUs\") that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":371668,"source":{"system":"sec-edgar","filing":"0001193125-26-102646","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526102646/ownership.xml","form_type":"4"}},{"id":848905,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":53874,"kind":"person","name":"Pardo Ryan","position":1,"cik":"0001865531","reported_name":"Pardo Ryan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-11T23:00:20.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":38479,"price":6.91,"value":265889.89,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F5","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":1102742,"source":{"system":"sec-edgar","filing":"0001193125-26-102645","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1865531/000119312526102645/ownership.xml","form_type":"4"}},{"id":848904,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":53874,"kind":"person","name":"Pardo Ryan","position":1,"cik":"0001865531","reported_name":"Pardo Ryan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-11T23:00:20.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":105711,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Represents PSUs previously granted to the Reporting Person on February 27, 2025, which vested on March 9, 2026."}],"balance_after":1141221,"source":{"system":"sec-edgar","filing":"0001193125-26-102645","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1865531/000119312526102645/ownership.xml","form_type":"4"}},{"id":848903,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":53874,"kind":"person","name":"Pardo Ryan","position":1,"cik":"0001865531","reported_name":"Pardo Ryan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-11T23:00:20.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":15841,"price":6.91,"value":109461.31,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":1035510,"source":{"system":"sec-edgar","filing":"0001193125-26-102645","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1865531/000119312526102645/ownership.xml","form_type":"4"}},{"id":848902,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":53874,"kind":"person","name":"Pardo Ryan","position":1,"cik":"0001865531","reported_name":"Pardo Ryan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-11T23:00:20.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":40254,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents performance-based restricted stock units (\"PSUs\") previously granted to the Reporting Person on March 6, 2025, which vested on March 9, 2026."}],"balance_after":1051351,"source":{"system":"sec-edgar","filing":"0001193125-26-102645","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1865531/000119312526102645/ownership.xml","form_type":"4"}},{"id":848901,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":53874,"kind":"person","name":"Pardo Ryan","position":1,"cik":"0001865531","reported_name":"Pardo Ryan","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-11T23:00:20.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":12280,"price":6.91,"value":84854.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units (\"RSUs\") that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":1011097,"source":{"system":"sec-edgar","filing":"0001193125-26-102645","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1865531/000119312526102645/ownership.xml","form_type":"4"}},{"id":847925,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10161,"kind":"person","name":"Paunovich Vukasin","position":1,"cik":"0001938690","reported_name":"Paunovich Vukasin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common Stock","published_at":"2026-03-11T22:59:06.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":18541,"price":6.91,"value":128118.31,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":309296,"source":{"system":"sec-edgar","filing":"0001193125-26-102640","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526102640/ownership.xml","form_type":"4"}},{"id":847924,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10161,"kind":"person","name":"Paunovich Vukasin","position":1,"cik":"0001938690","reported_name":"Paunovich Vukasin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common Stock","published_at":"2026-03-11T22:59:06.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":62935,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents performance-based restricted stock units (\"PSUs\") previously granted to the Reporting Person on June 11, 2025, which vested on March 9, 2026."}],"balance_after":327837,"source":{"system":"sec-edgar","filing":"0001193125-26-102640","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526102640/ownership.xml","form_type":"4"}},{"id":847954,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-03-11T19:03:37.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":86024,"price":6.91,"value":594425.84,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F5","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":1398247,"source":{"system":"sec-edgar","filing":"0001193125-26-102652","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1823690/000119312526102652/ownership.xml","form_type":"4"}},{"id":847953,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-03-11T19:03:37.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":205550,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F4","text":"Represents PSUs previously granted to the Reporting Person on February 27, 2025, which vested on March 9, 2026."}],"balance_after":1484271,"source":{"system":"sec-edgar","filing":"0001193125-26-102652","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1823690/000119312526102652/ownership.xml","form_type":"4"}},{"id":847952,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-03-11T19:03:37.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":51474,"price":6.91,"value":355685.34,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":1278721,"source":{"system":"sec-edgar","filing":"0001193125-26-102652","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1823690/000119312526102652/ownership.xml","form_type":"4"}},{"id":847951,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-03-11T19:03:37.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":122994,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents performance-based restricted stock units (\"PSUs\") previously granted to the Reporting Person on March 6, 2025, which vested on March 9, 2026."}],"balance_after":1330195,"source":{"system":"sec-edgar","filing":"0001193125-26-102652","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1823690/000119312526102652/ownership.xml","form_type":"4"}},{"id":847950,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-03-11T19:03:37.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":10884,"price":6.91,"value":75208.44,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units (\"RSUs\") that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":1207201,"source":{"system":"sec-edgar","filing":"0001193125-26-102652","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1823690/000119312526102652/ownership.xml","form_type":"4"}},{"id":849154,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":55871,"kind":"person","name":"McGroarty Ryan","position":1,"cik":"0002059196","reported_name":"McGroarty Ryan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-11T18:59:07.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":25644,"price":6.91,"value":177200.04,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":844084,"source":{"system":"sec-edgar","filing":"0001193125-26-102641","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/2059196/000119312526102641/ownership.xml","form_type":"4"}},{"id":849153,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":55871,"kind":"person","name":"McGroarty Ryan","position":1,"cik":"0002059196","reported_name":"McGroarty Ryan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-11T18:59:07.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":65168,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents PSUs previously granted to the Reporting Person on March 24, 2025, which vested on March 9, 2026."}],"balance_after":869728,"source":{"system":"sec-edgar","filing":"0001193125-26-102641","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/2059196/000119312526102641/ownership.xml","form_type":"4"}},{"id":849152,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":55871,"kind":"person","name":"McGroarty Ryan","position":1,"cik":"0002059196","reported_name":"McGroarty Ryan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-11T18:59:07.000Z","date":"2026-03-09","kind":"tax_withholding","planned":false,"acquired":false,"shares":50929,"price":6.91,"value":351919.39,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 9, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":804560,"source":{"system":"sec-edgar","filing":"0001193125-26-102641","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2059196/000119312526102641/ownership.xml","form_type":"4"}},{"id":849151,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":55871,"kind":"person","name":"McGroarty Ryan","position":1,"cik":"0002059196","reported_name":"McGroarty Ryan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-11T18:59:07.000Z","date":"2026-03-09","kind":"grant","planned":false,"acquired":true,"shares":127878,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents performance-based restricted stock units (\"PSUs\") previously granted to the Reporting Person on March 17, 2025, which vested on March 9, 2026."}],"balance_after":855489,"source":{"system":"sec-edgar","filing":"0001193125-26-102641","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2059196/000119312526102641/ownership.xml","form_type":"4"}},{"id":852888,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":61956,"kind":"person","name":"Eken Stephanie Carin","position":1,"cik":"0002112639","reported_name":"Eken Stephanie Carin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Medical Officer"}}],"security":"Common Stock","published_at":"2026-03-10T00:13:46.000Z","date":"2026-03-05","kind":"grant","planned":false,"acquired":true,"shares":115107,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 115,107 restricted stock units (\"RSUs\") granted on March 5, 2026. Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":115107,"source":{"system":"sec-edgar","filing":"0001193125-26-099068","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526099068/ownership.xml","form_type":"4"}},{"id":853728,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":53874,"kind":"person","name":"Pardo Ryan","position":1,"cik":"0001865531","reported_name":"Pardo Ryan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-10T00:13:07.000Z","date":"2026-03-06","kind":"tax_withholding","planned":false,"acquired":false,"shares":21854,"price":6.93,"value":151448.22,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of RSUs that vested on March 6, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":1023377,"source":{"system":"sec-edgar","filing":"0001193125-26-099067","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1865531/000119312526099067/ownership.xml","form_type":"4"}},{"id":853727,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":53874,"kind":"person","name":"Pardo Ryan","position":1,"cik":"0001865531","reported_name":"Pardo Ryan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-10T00:13:07.000Z","date":"2026-03-05","kind":"grant","planned":false,"acquired":true,"shares":129496,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 129,496 restricted stock units (\"RSUs\") granted on March 5, 2026. Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":1045231,"source":{"system":"sec-edgar","filing":"0001193125-26-099067","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1865531/000119312526099067/ownership.xml","form_type":"4"}},{"id":853452,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":23695,"kind":"person","name":"Burdick Kenneth A","position":1,"cik":"0001498992","reported_name":"Burdick Kenneth A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-03-10T00:11:40.000Z","date":"2026-03-06","kind":"tax_withholding","planned":false,"acquired":false,"shares":424551,"price":7.11,"value":3018557.61,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units (\"RSUs\") that vested on March 6, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":3012020,"source":{"system":"sec-edgar","filing":"0001193125-26-099063","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1498992/000119312526099063/ownership.xml","form_type":"4"}},{"id":852887,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10161,"kind":"person","name":"Paunovich Vukasin","position":1,"cik":"0001938690","reported_name":"Paunovich Vukasin","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common Stock","published_at":"2026-03-10T00:11:38.000Z","date":"2026-03-05","kind":"grant","planned":false,"acquired":true,"shares":86331,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 86,331 restricted stock units (\"RSUs\") granted on March 5, 2026. Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":264902,"source":{"system":"sec-edgar","filing":"0001193125-26-099062","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526099062/ownership.xml","form_type":"4"}},{"id":853950,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24233,"kind":"person","name":"Miller Lisa K","position":1,"cik":"0002036749","reported_name":"Miller Lisa K","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-10T00:09:50.000Z","date":"2026-03-06","kind":"tax_withholding","planned":false,"acquired":false,"shares":21590,"price":6.93,"value":149618.7,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of RSUs that vested on March 6, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":330577,"source":{"system":"sec-edgar","filing":"0001193125-26-099056","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/2036749/000119312526099056/ownership.xml","form_type":"4"}},{"id":853949,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24233,"kind":"person","name":"Miller Lisa K","position":1,"cik":"0002036749","reported_name":"Miller Lisa K","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-10T00:09:50.000Z","date":"2026-03-05","kind":"grant","planned":false,"acquired":true,"shares":107914,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 107,914 restricted stock units (\"RSUs\") granted on March 5, 2026. Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":352167,"source":{"system":"sec-edgar","filing":"0001193125-26-099056","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2036749/000119312526099056/ownership.xml","form_type":"4"}},{"id":852886,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2026-03-10T00:08:03.000Z","date":"2026-03-06","kind":"tax_withholding","planned":false,"acquired":false,"shares":21566,"price":6.93,"value":149452.38,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of RSUs that vested on March 6, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":380375,"source":{"system":"sec-edgar","filing":"0001193125-26-099053","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526099053/ownership.xml","form_type":"4"}},{"id":852885,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2026-03-10T00:08:03.000Z","date":"2026-03-05","kind":"grant","planned":false,"acquired":true,"shares":86331,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 86,331 restricted stock units (\"RSUs\") granted on March 5, 2026. Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":401941,"source":{"system":"sec-edgar","filing":"0001193125-26-099053","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312526099053/ownership.xml","form_type":"4"}},{"id":852909,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-03-09T20:11:57.000Z","date":"2026-03-06","kind":"tax_withholding","planned":false,"acquired":false,"shares":65837,"price":6.93,"value":456250.41,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of RSUs that vested on March 6, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":1218085,"source":{"system":"sec-edgar","filing":"0001193125-26-099064","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1823690/000119312526099064/ownership.xml","form_type":"4"}},{"id":852908,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":10162,"kind":"person","name":"Bourdon David","position":1,"cik":"0001823690","reported_name":"Bourdon David","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common Stock","published_at":"2026-03-09T20:11:57.000Z","date":"2026-03-05","kind":"grant","planned":false,"acquired":true,"shares":395683,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 395,683 restricted stock units (\"RSUs\") granted on March 5, 2026. Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":1283922,"source":{"system":"sec-edgar","filing":"0001193125-26-099064","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1823690/000119312526099064/ownership.xml","form_type":"4"}},{"id":854006,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":55871,"kind":"person","name":"McGroarty Ryan","position":1,"cik":"0002059196","reported_name":"McGroarty Ryan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2026-03-09T20:07:23.000Z","date":"2026-03-05","kind":"grant","planned":false,"acquired":true,"shares":179856,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Includes 179,856 restricted stock units (\"RSUs\") granted on March 5, 2026. Each RSU represents a contingent right to receive one share of the Issuer's common stock."}],"balance_after":727611,"source":{"system":"sec-edgar","filing":"0001193125-26-099052","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2059196/000119312526099052/ownership.xml","form_type":"4"}},{"id":863102,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24313,"kind":"organization","name":"TPG GP A, LLC","position":1,"cik":"0001903793","reported_name":"TPG GP A, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24314,"kind":"person","name":"COULTER JAMES G","position":2,"cik":"0001099776","reported_name":"COULTER JAMES G","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":13344,"kind":"person","name":"WINKELRIED JON","position":3,"cik":"0001366946","reported_name":"WINKELRIED JON","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-03-04T21:32:52.000Z","date":"2026-03-02","kind":"sale","planned":false,"acquired":false,"shares":20685061,"price":7.01,"value":145002277.61,"ownership":{"direct":false,"nature":"See Explanation of Responses"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Each of James G. Coulter and Jon Winkelried own entities that control TPG GP A, LLC (together with Messrs. Coulter and Winkelried, the \"Reporting Persons\"), which exercises direct or indirect control over entities that collectively hold 100% of the shares of Class B common stock (which represents a majority of the combined voting power of the common stock) of TPG Inc., which is the sole member of TPG GPCo, LLC, which is the sole member of TPG Holdings II-A, LLC, which is the general partner of TPG Operating Group II, L.P., which is the sole member of TPG Holdings I-A, LLC, which is the general partner of TPG Operating Group I, L.P., which is the sole member of TPG GenPar VIII Advisors, LLC, which is the general partner of TPG GenPar VIII, L.P., which is the general partner of TPG VIII Lynnwood Holdings Aggregation, L.P. (\"TPG VIII Lynnwood\"), which directly holds 140,026,557 shares of Common Stock of LifeStance Health Group, Inc."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Because of the relationship between the Reporting Persons and TPG VIII Lynnwood, the Reporting Persons may be deemed to beneficially own the securities reported herein to the extent of the greater of their respective direct or indirect pecuniary interests in the profits or capital accounts of TPG VIII Lynnwood. Each of TPG VIII Lynnwood and each Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of TPG VIII Lynnwood's or such Reporting Person's pecuniary interest therein, if any."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended (the \"Exchange Act\"), this filing shall not be deemed an admission that the Reporting Persons are, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owners of any equity securities in excess of their respective pecuniary interests."}],"balance_after":140026557,"source":{"system":"sec-edgar","filing":"0001999371-26-005046","document":"lifestance-form4_030426.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1099776/000199937126005046/lifestance-form4_030426.xml","form_type":"4"}},{"id":860431,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":47208,"kind":"person","name":"BLACK DARREN M.","position":1,"cik":"0001843861","reported_name":"BLACK DARREN M.","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-03-04T21:05:04.000Z","date":"2026-03-02","kind":"sale","planned":false,"acquired":false,"shares":4314939,"price":7.01,"value":30247722.39,"ownership":{"direct":false,"nature":"See Footnotes."},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents 2,642,291 shares sold by Summit Partners Growth Equity Fund IX-A, L.P., 1,649,809 shares sold by Summit Partners Growth Equity Fund IX-B, L.P., 18,444 shares sold by Summit Investors GE IX/VC IV, LLC, 2,466 shares sold by Summit Partners Entrepreneur Advisors Fund II, L.P. and 1,929 shares sold by Summit Investors GE IX/VC IV (UK), L.P."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The reported securities are held as follows: 17,886,858 shares in the name of Summit Partners Growth Equity Fund IX-A, L.P.; 11,168,308 shares in the name of Summit Partners Growth Equity Fund IX-B, L.P.; 124,857 shares in the name of Summit Investors GE IX/VC IV, LLC; 16,691 shares in the name of Summit Partners Entrepreneur Advisors Fund II, L.P.; and 13,062 shares in the name of Summit Investors GE IX/ VC IV (UK), L.P."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Darren Black is a Managing Director and Member of Summit Master Company, LLC, the general partner of Summit Partners, L.P. Summit Partners, L.P. is the managing member of Summit Partners GE IX, LLC, which is general partner of Summit Partners GE IX, LP, which is the general partner of Summit Partners Growth Equity Fund IX-A, L.P. and Summit Partners Growth Equity Fund IX-B, L.P. Summit Master Company, LLC is (i) the sole member of Summit Partners Entrepreneur Advisors GP II, LLC, which is the general partner of Summit Partners Entrepreneur Advisors Fund II, L.P. and (ii) the managing member of Summit Investors Management, LLC, which is the manager of Summit Investors GE IX/VC IV, LLC, and the general partner of Summit Investors GE IX/VC IV (UK), L.P."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Summit Master Company, LLC, as the sole member of Summit Partners Entrepreneur Advisors GP II, LLC and the managing member of Summit Investors Management, LLC, has delegated investment decisions, including voting and dispositive power, to Summit Partners, L.P. and its investment committee responsible for voting and investment decisions with respect to LifeStance Health Group, Inc. Summit Partners, L.P., through a three person investment committee, currently composed of Peter Y. Chung, Darren M. Black and Craig D. Frances, has voting and dispositive authority over the shares held by each of these entities and therefore beneficially owns such shares. Each of the Summit Funds, Mr. Chung, Mr. Black and Dr. Frances disclaim beneficial ownership of the shares, except, in each case, to the extent of such person's or entity's pecuniary interest therein."}],"balance_after":29209776,"source":{"system":"sec-edgar","filing":"0001193125-26-091471","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1843861/000119312526091471/ownership.xml","form_type":"4"}},{"id":959758,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-24T00:53:46.000Z","date":"2025-12-22","kind":"sale","planned":true,"acquired":false,"shares":851,"price":7.04,"value":5991.04,"ownership":{"direct":false,"nature":"Shama LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.03 to $7.04 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act or for any other purpose."}],"balance_after":1434932,"source":{"system":"sec-edgar","filing":"0001193125-25-331253","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312525331253/ownership.xml","form_type":"4"}},{"id":959757,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-24T00:53:46.000Z","date":"2025-12-22","kind":"sale","planned":true,"acquired":false,"shares":850,"price":7.04,"value":5984.0,"ownership":{"direct":false,"nature":"Vitthal LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.03 to $7.04 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act of 1934 (the \"Exchange Act\") or for any other purpose."}],"balance_after":1318133,"source":{"system":"sec-edgar","filing":"0001193125-25-331253","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312525331253/ownership.xml","form_type":"4"}},{"id":959756,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-24T00:53:46.000Z","date":"2025-12-19","kind":"sale","planned":true,"acquired":false,"shares":59971,"price":7.04,"value":422195.84,"ownership":{"direct":false,"nature":"Shama LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.065 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act or for any other purpose."}],"balance_after":1435783,"source":{"system":"sec-edgar","filing":"0001193125-25-331253","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312525331253/ownership.xml","form_type":"4"}},{"id":959755,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-24T00:53:46.000Z","date":"2025-12-19","kind":"sale","planned":true,"acquired":false,"shares":59971,"price":7.04,"value":422195.84,"ownership":{"direct":false,"nature":"Vitthal LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.065 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act of 1934 (the \"Exchange Act\") or for any other purpose."}],"balance_after":1318983,"source":{"system":"sec-edgar","filing":"0001193125-25-331253","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312525331253/ownership.xml","form_type":"4"}},{"id":962128,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-19T21:55:55.000Z","date":"2025-12-18","kind":"sale","planned":true,"acquired":false,"shares":3221,"price":7,"value":22547.0,"ownership":{"direct":false,"nature":"Shama LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.025 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act or for any other purpose."}],"balance_after":1495754,"source":{"system":"sec-edgar","filing":"0001193125-25-327010","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312525327010/ownership.xml","form_type":"4"}},{"id":962127,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-19T21:55:55.000Z","date":"2025-12-18","kind":"sale","planned":true,"acquired":false,"shares":3221,"price":7,"value":22547.0,"ownership":{"direct":false,"nature":"Vitthal LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.025 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act of 1934 (the \"Exchange Act\") or for any other purpose."}],"balance_after":1378954,"source":{"system":"sec-edgar","filing":"0001193125-25-327010","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312525327010/ownership.xml","form_type":"4"}},{"id":961703,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2025-12-19T21:49:27.000Z","date":"2025-12-17","kind":"sale","planned":false,"acquired":false,"shares":50000,"price":6.9,"value":345000.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $6.89 to $6.92 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."}],"balance_after":315610,"source":{"system":"sec-edgar","filing":"0001193125-25-327000","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312525327000/ownership.xml","form_type":"4"}},{"id":967748,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-17T00:49:53.000Z","date":"2025-12-15","kind":"sale","planned":true,"acquired":false,"shares":6185,"price":7,"value":43295.0,"ownership":{"direct":false,"nature":"Shama LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.01 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act or for any other purpose."}],"balance_after":1492790,"source":{"system":"sec-edgar","filing":"0001193125-25-321342","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312525321342/ownership.xml","form_type":"4"}},{"id":967747,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-17T00:49:53.000Z","date":"2025-12-15","kind":"sale","planned":true,"acquired":false,"shares":6186,"price":7,"value":43302.0,"ownership":{"direct":false,"nature":"Vitthal LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.01 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act of 1934 (the \"Exchange Act\") or for any other purpose."}],"balance_after":1375989,"source":{"system":"sec-edgar","filing":"0001193125-25-321342","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312525321342/ownership.xml","form_type":"4"}},{"id":967746,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-17T00:49:53.000Z","date":"2025-12-12","kind":"sale","planned":true,"acquired":false,"shares":39815,"price":7.01,"value":279103.15,"ownership":{"direct":false,"nature":"Shama LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.045 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act or for any other purpose."}],"balance_after":1498975,"source":{"system":"sec-edgar","filing":"0001193125-25-321342","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312525321342/ownership.xml","form_type":"4"}},{"id":967745,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":31724,"kind":"person","name":"Bessler Robert","position":1,"cik":"0001864881","reported_name":"Bessler Robert","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-12-17T00:49:53.000Z","date":"2025-12-12","kind":"sale","planned":true,"acquired":false,"shares":39815,"price":7.01,"value":279103.15,"ownership":{"direct":false,"nature":"Vitthal LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $7.00 to $7.045 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities on this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities for purposes of Section 16 of the Exchange Act of 1934 (the \"Exchange Act\") or for any other purpose."}],"balance_after":1382175,"source":{"system":"sec-edgar","filing":"0001193125-25-321342","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1864881/000119312525321342/ownership.xml","form_type":"4"}},{"id":988939,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24233,"kind":"person","name":"Miller Lisa K","position":1,"cik":"0002036749","reported_name":"Miller Lisa K","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2025-11-25T21:25:19.000Z","date":"2025-11-21","kind":"sale","planned":false,"acquired":false,"shares":57240,"price":6.43,"value":368053.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $6.41 to $6.50 inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range."}],"balance_after":261292,"source":{"system":"sec-edgar","filing":"0001193125-25-297294","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2036749/000119312525297294/ownership.xml","form_type":"4"}},{"id":1000530,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":24233,"kind":"person","name":"Miller Lisa K","position":1,"cik":"0002036749","reported_name":"Miller Lisa K","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"See Remarks"}}],"security":"Common Stock","published_at":"2025-11-13T22:53:20.000Z","date":"2025-11-10","kind":"tax_withholding","planned":false,"acquired":false,"shares":10623,"price":6.43,"value":68305.89,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of RSUs that vested on November 10, 2025. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale."}],"balance_after":318532,"source":{"system":"sec-edgar","filing":"0001193125-25-280594","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2036749/000119312525280594/ownership.xml","form_type":"4"}},{"id":1001281,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2025-11-12T23:37:31.000Z","date":"2025-03-07","kind":"tax_withholding","planned":false,"acquired":false,"shares":8606,"price":7.59,"value":65319.54,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F6","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 7, 2025. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":376430,"source":{"system":"sec-edgar","filing":"0001193125-25-278189","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312525278189/ownership.xml","form_type":"4/A","original_submission_date":"2025-03-10"}},{"id":1001280,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2025-11-12T23:37:31.000Z","date":"2025-03-07","kind":"grant","planned":false,"acquired":true,"shares":32052,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F5","text":"Represents PSUs previously granted to the Reporting Person on February 28, 2024, which vested on March 7, 2025."}],"balance_after":385036,"source":{"system":"sec-edgar","filing":"0001193125-25-278189","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312525278189/ownership.xml","form_type":"4/A","original_submission_date":"2025-03-10"}},{"id":1001279,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2025-11-12T23:37:31.000Z","date":"2025-03-07","kind":"tax_withholding","planned":false,"acquired":false,"shares":7450,"price":7.59,"value":56545.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F4","text":"Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of PSUs that vested on March 7, 2025. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested PSUs and do not constitute any open-market sale."}],"balance_after":352984,"source":{"system":"sec-edgar","filing":"0001193125-25-278189","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312525278189/ownership.xml","form_type":"4/A","original_submission_date":"2025-03-10"}},{"id":1001278,"issuer":{"id":3936,"kind":"organization","name":"LifeStance Health Group, Inc.","symbol":"LFST"},"owners":[{"id":19345,"kind":"person","name":"Varanakis Ann","position":1,"cik":"0001965703","reported_name":"Varanakis Ann","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief People Officer"}}],"security":"Common Stock","published_at":"2025-11-12T23:37:31.000Z","date":"2025-03-07","kind":"grant","planned":false,"acquired":true,"shares":27740,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents performance-based restricted stock units (\"PSUs\") previously granted to the Reporting Person on March 8, 2024, which vested on March 7, 2025."}],"balance_after":360434,"source":{"system":"sec-edgar","filing":"0001193125-25-278189","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1845257/000119312525278189/ownership.xml","form_type":"4/A","original_submission_date":"2025-03-10"}}],"next_cursor":"2025-11-12T23:37:31.000000Z,1001278"}