{"transactions":[{"id":753253,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-06-03T17:46:38.000Z","date":"2026-06-01","kind":"grant","planned":false,"acquired":true,"shares":2247,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares issuable upon vesting of restricted stock units granted to the reporting person pursuant to the Registrant's 2023 Equity and Incentive Plan. The restricted stock units vest on June 1, 2027, subject to the reporting person's provision of continuous service to the Registrant through the earlier of the applicable vesting date or the date of the Registrant's next annual shareholder meeting."}],"balance_after":5743,"source":{"system":"sec-edgar","filing":"0000860413-26-000069","document":"wk-form4_1780508796.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041326000069/wk-form4_1780508796.xml","form_type":"4"}},{"id":903422,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66335,"kind":"organization","name":"NBAR5 Limited Partnership","position":3,"cik":"0002076804","reported_name":"NBAR5 Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-02-17T21:30:16.000Z","date":"2025-12-08","kind":"gift","planned":false,"acquired":true,"shares":550,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Composed of 3,416,108 shares held of record by NBar5 Limited Partnership, 25,119 shares held of record by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 (550 of which were received as a gift on August 8, 2025 but inadvertently previously reported incorrectly as held directly), 68,942 shares held of record by Jeremy Scott Trustee, 2025 Grantor Retained Annuity Irrevocable Trust, and 3,380 shares held of record by Jeremy Scott's spouse (550 of which were received as a gift as described in the table)."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Composed of 3,416,108 shares held of record by NBar5 Limited Partnership, 25,119 shares held of record by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 (550 of which were received as a gift on August 8, 2025 but inadvertently previously reported incorrectly as held directly), 68,942 shares held of record by Jeremy Scott Trustee, 2025 Grantor Retained Annuity Irrevocable Trust, and 3,380 shares held of record by Jeremy Scott's spouse (550 of which were received as a gift as described in the table)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"As a result of agreements entered into among the reporting persons, the issuer, and other stockholders of the issuer signatory thereto, the reporting persons may be deemed members of a group with the other signatories to the agreement and may be deemed to share beneficial ownership of the securities to which this footnote relates. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of his or its pecuniary interest therein. The reporting persons expect to file future Forms 4 or 5, if any, together with the indication of direct or indirect ownership in Tables I and II being made from Jeremy Scott's perspective, unless expressly noted otherwise by footnote. 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The reporting persons disclaim beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Reportable beneficial ownership acquired upon receipt of shares by gift by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 of general partner interests in NBAR5 O Limited Partnership, which partnership holds such shares directly and with respect to which the reporting persons, as applicable, previously held only limited partner interests. The reporting persons disclaim beneficial ownership of such shares except to the extent of his or its pecuniary interest therein."}],"balance_after":236808,"source":{"system":"sec-edgar","filing":"0001493152-26-007143","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000149315226007143/ownership.xml","form_type":"5"}},{"id":948768,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-01-06T19:46:18.000Z","date":"2025-12-08","kind":"gift","planned":false,"acquired":true,"shares":550,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":3496,"source":{"system":"sec-edgar","filing":"0000860413-26-000002","document":"wk-form4_1767728775.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041326000002/wk-form4_1767728775.xml","form_type":"4"}},{"id":1047177,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66335,"kind":"organization","name":"NBAR5 Limited Partnership","position":3,"cik":"0002076804","reported_name":"NBAR5 Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-09-06T01:39:13.000Z","date":"2025-08-05","kind":"other","planned":false,"acquired":true,"shares":216,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"see footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Composed of 3,416,108 shares held of record by NBar5 Limited Partnership, 93,511 shares held of record following both transactions reported herein by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15, and 2,830 shares held of record by Jeremy Scott's spouse."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"As a result of agreements entered into among the reporting persons, the issuer, and other stockholders of the issuer signatory thereto, the reporting persons may be deemed members of a group with the other signatories to the agreement and may be deemed to share beneficial ownership of the securities reported herein. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of his or its pecuniary interest therein. The reporting persons expect to file future Forms 4 or 5, if any, together with the indication of direct or indirect ownership in Tables I and II being made from Jeremy Scott's perspective, unless expressly noted otherwise by footnote. The nature of beneficial ownership is described in detail by footnote for all reporting persons."}],"balance_after":3512449,"source":{"system":"sec-edgar","filing":"0001641172-25-026792","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/860413/000164117225026792/ownership.xml","form_type":"4"}},{"id":1047176,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66335,"kind":"organization","name":"NBAR5 Limited Partnership","position":3,"cik":"0002076804","reported_name":"NBAR5 Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-09-06T01:39:13.000Z","date":"2025-09-03","kind":"gift","planned":false,"acquired":true,"shares":22928,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"see footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Composed of 3,416,108 shares held of record by NBar5 Limited Partnership, 93,511 shares held of record following both transactions reported herein by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15, and 2,830 shares held of record by Jeremy Scott's spouse."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"As a result of agreements entered into among the reporting persons, the issuer, and other stockholders of the issuer signatory thereto, the reporting persons may be deemed members of a group with the other signatories to the agreement and may be deemed to share beneficial ownership of the securities reported herein. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of his or its pecuniary interest therein. The reporting persons expect to file future Forms 4 or 5, if any, together with the indication of direct or indirect ownership in Tables I and II being made from Jeremy Scott's perspective, unless expressly noted otherwise by footnote. The nature of beneficial ownership is described in detail by footnote for all reporting persons."}],"balance_after":3512233,"source":{"system":"sec-edgar","filing":"0001641172-25-026792","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000164117225026792/ownership.xml","form_type":"4"}},{"id":1084965,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66335,"kind":"organization","name":"NBAR5 Limited Partnership","position":3,"cik":"0002076804","reported_name":"NBAR5 Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-07-18T20:18:10.000Z","date":"2024-12-05","kind":"gift","planned":false,"acquired":true,"shares":475,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Includes these 475 shares received by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 as a gift from a family member."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Includes these 475 shares received by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15 as a gift from a family member."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"As a result of agreements entered into among the reporting persons, the issuer, and other stockholders of the issuer signatory thereto, the reporting persons may be deemed members of a group with the other signatories to the agreement and may be deemed to share beneficial ownership of the securities reported herein. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of his or its pecuniary interest therein. The reporting persons expect to file future Forms 4 or 5, if any, together with the indication of direct or indirect ownership in Tables I and II being made from Jeremy Scott's perspective, unless expressly noted otherwise by footnote. The nature of beneficial ownership is described in detail by footnote for all reporting persons."}],"balance_after":3489305,"source":{"system":"sec-edgar","filing":"0001641172-25-020230","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/860413/000164117225020230/ownership.xml","form_type":"5"}},{"id":1084964,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66335,"kind":"organization","name":"NBAR5 Limited Partnership","position":3,"cik":"0002076804","reported_name":"NBAR5 Limited Partnership","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-07-18T20:18:10.000Z","date":"2024-12-05","kind":"gift","planned":false,"acquired":true,"shares":475,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes these 475 shares received by Jeremy Scott's spouse as a gift from a family member."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Includes these 475 shares received by Jeremy Scott's spouse as a gift from a family member."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"As a result of agreements entered into among the reporting persons, the issuer, and other stockholders of the issuer signatory thereto, the reporting persons may be deemed members of a group with the other signatories to the agreement and may be deemed to share beneficial ownership of the securities reported herein. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of his or its pecuniary interest therein. The reporting persons expect to file future Forms 4 or 5, if any, together with the indication of direct or indirect ownership in Tables I and II being made from Jeremy Scott's perspective, unless expressly noted otherwise by footnote. 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The restricted stock units vest on June 1, 2026, subject to the reporting person's provision of continuous service to the Registrant through the earlier of the applicable vesting date or the date of the Registrant's [next] annual stockholder meeting."}],"balance_after":2946,"source":{"system":"sec-edgar","filing":"0000860413-25-000096","document":"wk-form4_1748976834.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041325000096/wk-form4_1748976834.xml","form_type":"4"}},{"id":1697277,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-01-02T11:37:26.000Z","date":"2023-12-13","kind":"gift","planned":false,"acquired":true,"shares":575,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Trust"},"balance_after":69892,"source":{"system":"sec-edgar","filing":"0001493152-24-000011","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/860413/000149315224000011/ownership.xml","form_type":"5"}},{"id":1697276,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-01-02T11:37:26.000Z","date":"2022-12-07","kind":"gift","planned":false,"acquired":true,"shares":375,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The reporting Person received these shares as a gift from a Family member on 12/7/22. This Transaction was overlooked and not originally disclosed on a form 4 or form 5."}],"balance_after":69317,"source":{"system":"sec-edgar","filing":"0001493152-24-000011","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000149315224000011/ownership.xml","form_type":"5"}},{"id":2315967,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":66334,"kind":"organization","name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15","position":2,"cik":"0001909124","reported_name":"Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 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B Common Stock was automatically converted into one share of Class A Common Stock.."},{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the Issuer's articles of incorporation, because the aggregate number of shares of Class B Common Stock constituted less than twenty percent (20%) of the aggregate number of shares of the Issuer's issued and outstanding common stock as of March 25, 2022, the record date of the Issuer's annual meeting of shareholders, each outstanding share of Class B Common Stock was automatically converted into one share of Class A Common Stock.."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Pursuant to the Issuer's articles of incorporation, because the aggregate number of shares of Class B Common Stock constituted less than twenty percent (20%) of the aggregate number of shares of the Issuer's issued and outstanding common stock as of March 25, 2022, the record date of the Issuer's annual meeting of shareholders, each outstanding share of Class B Common Stock was automatically converted into one share of Class A Common Stock.."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Pursuant to the Issuer's articles of incorporation, because the aggregate number of shares of Class B Common Stock constituted less than twenty percent (20%) of the aggregate number of shares of the Issuer's issued and outstanding common stock as of March 25, 2022, the record date of the Issuer's annual meeting of shareholders, each outstanding share of Class B Common Stock was automatically converted into one share of Class A Common Stock.."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Composed of 68,942 shares held of record by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15, 3,416,108 shares held of record by NBAR5 Limited Partnership."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Class A Common 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incorporation, because the aggregate number of shares of Class B Common Stock constituted less than twenty percent (20%) of the aggregate number of shares of the Issuer's issued and outstanding common stock as of March 25, 2022, the record date of the Issuer's annual meeting of shareholders, each outstanding share of Class B Common Stock was automatically converted into one share of Class A Common Stock.."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"As a result of certain agreements entered into by and among the reporting persons, the Issuer, and certain other stockholders of the Issuer, the reporting persons may be deemed members of a group with the other signatories thereto and may be deemed to share beneficial ownership of the securities reported herein. Each of the reporting persons disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein. The reporting persons expect to file future Forms 4 and 5, if any, together with Jeremy Scott."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Composed of 68,942 shares held of record by Jeremy Scott TTEE, Jeremy Scott Revocable Trust Dtd 6/25/15, 3,416,108 shares held of record by NBAR5 Limited Partnership."}],"balance_after":3485050,"source":{"system":"sec-edgar","filing":"0000899243-22-012691","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000089924322012691/doc4.xml","form_type":"4"}},{"id":2852209,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2021-02-18T16:44:25.000Z","date":"2021-02-17","kind":"sale","acquired":false,"shares":8378,"price":44.05,"value":369050.9,"ownership":{"direct":false,"nature":"N Bar 5 limited partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $44.00 to $44.15.  The reporting person undertakes to provide to First Interstate BancSystem, Inc., any security holder of First Interstate BancSystem, Inc., or the staff of the Securities and Exchange Commission, upon, request, the full information regarding the number of shares sold at each separate price within the ranges set forth above."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000860413-21-000071","document":"wf-form4_161366664966901.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041321000071/wf-form4_161366664966901.xml","form_type":"4"}},{"id":2856485,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2021-02-17T19:48:26.000Z","date":"2021-02-16","kind":"sale","acquired":false,"shares":14923,"price":44.29,"value":660939.67,"ownership":{"direct":false,"nature":"N Bar 5 limited partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $44.00 to $44.51.  The reporting person undertakes to provide to First Interstate BancSystem, Inc., any security holder of First Interstate BancSystem, Inc., or the staff of the Securities and Exchange Commission, upon, request, the full information regarding the number of shares sold at each separate price within the ranges set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Mr. Scott disclaims beneficial ownership of the shares owned by N Bar 5 except to the extent of his pecuniary interest therein."}],"balance_after":8378,"source":{"system":"sec-edgar","filing":"0000860413-21-000061","document":"wf-form4_161359127826459.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041321000061/wf-form4_161359127826459.xml","form_type":"4"}},{"id":2864618,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2021-02-12T21:50:30.000Z","date":"2021-02-12","kind":"sale","acquired":false,"shares":800,"price":43.5,"value":34800.0,"ownership":{"direct":false,"nature":"N Bar 5 limited partnership"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Mr. Scott disclaims beneficial ownership of the shares owned by N Bar 5 except to the extent of his pecuniary interest therein."}],"balance_after":23301,"source":{"system":"sec-edgar","filing":"0000860413-21-000037","document":"wf-form4_161316658546444.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041321000037/wf-form4_161316658546444.xml","form_type":"4"}},{"id":2870204,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2021-02-10T23:10:37.000Z","date":"2021-02-10","kind":"sale","acquired":false,"shares":200,"price":43.57,"value":8714.0,"ownership":{"direct":false,"nature":"N Bar 5 limited partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $43.53 to $43.60.  The reporting person undertakes to provide to First Interstate BancSystem, Inc., any security holder of First Interstate BancSystem, Inc., or the staff of the Securities and Exchange Commission, upon, request, the full information regarding the number of shares sold at each separate price within the ranges set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Mr. Scott disclaims beneficial ownership of the shares owned by N Bar 5 except to the extent of his pecuniary interest therein."}],"balance_after":24101,"source":{"system":"sec-edgar","filing":"0000860413-21-000035","document":"wf-form4_161299862325428.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041321000035/wf-form4_161299862325428.xml","form_type":"4"}},{"id":2873078,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2021-02-09T23:41:26.000Z","date":"2021-02-09","kind":"sale","acquired":false,"shares":1000,"price":43.01,"value":43010.0,"ownership":{"direct":false,"nature":"N Bar 5 limited partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $43.03 to $43.00.  The reporting person undertakes to provide to First Interstate BancSystem, Inc., any security holder of First Interstate BancSystem, Inc., or the staff of the Securities and Exchange Commission, upon, request, the full information regarding the number of shares sold at each separate price within the ranges set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Mr. Scott disclaims beneficial ownership of the shares owned by N Bar 5 except to the extent of his pecuniary interest therein."}],"balance_after":24301,"source":{"system":"sec-edgar","filing":"0000860413-21-000033","document":"wf-form4_161291407319938.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041321000033/wf-form4_161291407319938.xml","form_type":"4"}},{"id":2879820,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2021-02-04T23:00:33.000Z","date":"2021-02-04","kind":"sale","acquired":false,"shares":60100,"price":41,"value":2464100.0,"ownership":{"direct":false,"nature":"N Bar 5 limited partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $40.06 to $41.23.  The reporting person undertakes to provide to First Interstate BancSystem, Inc., any security holder of First Interstate BancSystem, Inc., or the staff of the Securities and Exchange Commission, upon, request, the full information regarding the number of shares sold at each separate price within the ranges set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Mr. Scott disclaims beneficial ownership of the shares owned by N Bar 5 except to the extent of his pecuniary interest therein."}],"balance_after":25301,"source":{"system":"sec-edgar","filing":"0000860413-21-000027","document":"wf-form4_161247960795916.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041321000027/wf-form4_161247960795916.xml","form_type":"4"}},{"id":2883379,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2021-02-03T23:03:27.000Z","date":"2021-02-03","kind":"sale","acquired":false,"shares":10223,"price":40.01,"value":409022.23,"ownership":{"direct":false,"nature":"N Bar 5 limited partnership"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $40.00 to $40.06.  The reporting person undertakes to provide to First Interstate BancSystem, Inc., any security holder of First Interstate BancSystem, Inc., or the staff of the Securities and Exchange Commission, upon, request, the full information regarding the number of shares sold at each separate price within the ranges set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Mr. Scott disclaims beneficial ownership of the shares owned by N Bar 5 except to the extent of his pecuniary interest therein."}],"balance_after":85401,"source":{"system":"sec-edgar","filing":"0000860413-21-000023","document":"wf-form4_161239338074202.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041321000023/wf-form4_161239338074202.xml","form_type":"4"}},{"id":2883375,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2021-02-03T16:49:21.000Z","date":"2021-02-02","kind":"sale","acquired":false,"shares":283944,"price":39.78,"value":11295292.32,"ownership":{"direct":false,"nature":"N Bar 5 limited partnership"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Mr. Scott disclaims beneficial ownership of the shares owned by N Bar 5 except to the extent of his pecuniary interest therein."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $39.00 to $40.64.  The reporting person undertakes to provide to First Interstate BancSystem, Inc., any security holder of First Interstate BancSystem, Inc., or the staff of the Securities and Exchange Commission, upon, request, the full information regarding the number of shares sold at each separate price within the ranges set forth above."}],"balance_after":95624,"source":{"system":"sec-edgar","filing":"0000860413-21-000017","document":"wf-form4_161237094756738.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041321000017/wf-form4_161237094756738.xml","form_type":"4"}},{"id":2899879,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2021-01-22T21:08:54.000Z","date":"2021-01-21","kind":"exercise","acquired":false,"shares":379568,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"N Bar 5, limited partnership"},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Class B Common Stock is convertible at any time into Class A Common Stock on a share for share basis at the discretion of the holder.  The conversion feature of the Class B Common Stock does not expire."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Class B Common Stock is convertible at any time into Class A Common Stock on a share for share basis at the discretion of the holder.  The conversion feature of the Class B Common Stock does not expire."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Mr. Scott disclaims beneficial ownership of the shares owned by N Bar 5 except to the extent of his pecuniary interest therein."}],"balance_after":3416108,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":379568},"source":{"system":"sec-edgar","filing":"0000860413-21-000008","document":"wf-form4_161134971914213.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041321000008/wf-form4_161134971914213.xml","form_type":"4"}},{"id":2899878,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2021-01-22T21:08:54.000Z","date":"2021-01-21","kind":"exercise","acquired":true,"shares":379568,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"N Bar 5 limited partnership"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Mr. Scott disclaims beneficial ownership of the shares owned by N Bar 5 except to the extent of his pecuniary interest therein."}],"balance_after":379568,"source":{"system":"sec-edgar","filing":"0000860413-21-000008","document":"wf-form4_161134971914213.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041321000008/wf-form4_161134971914213.xml","form_type":"4"}},{"id":2947462,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2020-12-14T18:08:54.000Z","date":"2020-12-14","kind":"gift","acquired":true,"shares":350,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Class B Common Stock is convertible at any time into Class A Common Stock on a share for share basis at the discretion of the holder.  The conversion feature of the Class B Common Stock does not expire."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Class B Common Stock is convertible at any time into Class A Common Stock on a share for share basis at the discretion of the holder.  The conversion feature of the Class B Common Stock does not expire."}],"balance_after":14024,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":350},"source":{"system":"sec-edgar","filing":"0000860413-20-000260","document":"wf-form4_160796932200788.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041320000260/wf-form4_160796932200788.xml","form_type":"4"}},{"id":3207274,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2020-03-17T17:31:56.000Z","date":"2020-03-13","kind":"sale","acquired":false,"shares":8000,"price":27.36,"value":218880.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Class B Common Stock is convertible at any time into Class A Common Stock on a share for share basis at the discretion of the holder.  The conversion feature of the Class B Common Stock does not expire."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Class B Common Stock is convertible at any time into Class A Common Stock on a share for share basis at the discretion of the holder.  The conversion feature of the Class B Common Stock does not expire."}],"balance_after":13674,"derivative":{"exercise_price":0,"underlying":"Class A Common Stock","underlying_shares":8000},"source":{"system":"sec-edgar","filing":"0000860413-20-000072","document":"wf-form4_158446629862012.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041320000072/wf-form4_158446629862012.xml","form_type":"4"}},{"id":3207273,"issuer":{"id":4141,"kind":"organization","name":"FIRST INTERSTATE BANCSYSTEM INC","symbol":"FIBK"},"owners":[{"id":42028,"kind":"person","name":"Scott Jeremy","position":1,"cik":"0001803925","reported_name":"Scott Jeremy","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2020-03-17T17:31:56.000Z","date":"2020-03-13","kind":"sale","acquired":false,"shares":400,"price":26.94,"value":10776.0,"ownership":{"direct":true},"balance_after":0,"source":{"system":"sec-edgar","filing":"0000860413-20-000072","document":"wf-form4_158446629862012.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/860413/000086041320000072/wf-form4_158446629862012.xml","form_type":"4"}}]}