{"transactions":[{"id":766025,"issuer":{"id":6805,"kind":"organization","name":"Kalaris Therapeutics, Inc."},"owners":[{"id":32933,"kind":"person","name":"AKKARAJU SRINIVAS","position":1,"cik":"0001253170","reported_name":"AKKARAJU SRINIVAS","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44746,"kind":"organization","name":"Samsara BioCapital, L.P.","position":2,"cik":"0001699737","reported_name":"Samsara BioCapital, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44747,"kind":"organization","name":"Samsara BioCapital GP, LLC","position":3,"cik":"0001888829","reported_name":"Samsara BioCapital GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44748,"kind":"organization","name":"Samsara Opportunity Fund, L.P.","position":4,"cik":"0002086193","reported_name":"Samsara Opportunity Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44749,"kind":"organization","name":"Samsara Opportunity Fund GP, LLC","position":5,"cik":"0002086456","reported_name":"Samsara Opportunity Fund GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-05-22T23:47:34.000Z","date":"2026-05-20","kind":"other","planned":false,"acquired":true,"shares":4471,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Samsara BioCapital Partners, L.P."},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F6","text":"Represents receipt of shares in the distribution in kind described in footnote (3)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F8","text":"Securities are held by Samsara BioCapital Partners. Dr. Akkaraju has voting and investment power over the shares held by Samsara BioCapital Partners and, accordingly, may be deemed to beneficially own the shares held by Samsara BioCapital Partners. Each of the Reporting Persons disclaims beneficial ownership in these shares except to the extent of its or his respective pecuniary interest therein."}],"balance_after":19408,"source":{"system":"sec-edgar","filing":"0001231919-26-000532","document":"form4-05222026_110527.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1754068/000123191926000532/form4-05222026_110527.xml","form_type":"4"}},{"id":766024,"issuer":{"id":6805,"kind":"organization","name":"Kalaris Therapeutics, Inc."},"owners":[{"id":32933,"kind":"person","name":"AKKARAJU SRINIVAS","position":1,"cik":"0001253170","reported_name":"AKKARAJU SRINIVAS","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44746,"kind":"organization","name":"Samsara BioCapital, L.P.","position":2,"cik":"0001699737","reported_name":"Samsara BioCapital, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44747,"kind":"organization","name":"Samsara BioCapital GP, LLC","position":3,"cik":"0001888829","reported_name":"Samsara BioCapital GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44748,"kind":"organization","name":"Samsara Opportunity Fund, L.P.","position":4,"cik":"0002086193","reported_name":"Samsara Opportunity Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44749,"kind":"organization","name":"Samsara Opportunity Fund GP, LLC","position":5,"cik":"0002086456","reported_name":"Samsara Opportunity Fund GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-05-22T23:47:34.000Z","date":"2026-05-20","kind":"other","planned":false,"acquired":true,"shares":14937,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Samsara BioCapital GP, LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F6","text":"Represents receipt of shares in the distribution in kind described in footnote (3)."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"Securities are held by Samsara LLC. Dr. Akkaraju has voting and investment power over the shares held by Samsara LLC and, accordingly, may be deemed to beneficially own the shares held by Samsara LLC. Each of the Reporting Persons disclaims beneficial ownership in these shares except to the extent of its or his respective pecuniary interest therein."}],"balance_after":14937,"source":{"system":"sec-edgar","filing":"0001231919-26-000532","document":"form4-05222026_110527.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1754068/000123191926000532/form4-05222026_110527.xml","form_type":"4"}},{"id":766023,"issuer":{"id":6805,"kind":"organization","name":"Kalaris Therapeutics, Inc."},"owners":[{"id":32933,"kind":"person","name":"AKKARAJU SRINIVAS","position":1,"cik":"0001253170","reported_name":"AKKARAJU SRINIVAS","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44746,"kind":"organization","name":"Samsara BioCapital, L.P.","position":2,"cik":"0001699737","reported_name":"Samsara BioCapital, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44747,"kind":"organization","name":"Samsara BioCapital GP, LLC","position":3,"cik":"0001888829","reported_name":"Samsara BioCapital GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44748,"kind":"organization","name":"Samsara Opportunity Fund, L.P.","position":4,"cik":"0002086193","reported_name":"Samsara Opportunity Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44749,"kind":"organization","name":"Samsara Opportunity Fund GP, LLC","position":5,"cik":"0002086456","reported_name":"Samsara Opportunity Fund GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-05-22T23:47:34.000Z","date":"2026-05-20","kind":"other","planned":false,"acquired":false,"shares":66906,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Samsara BioCapital, L.P."},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Represents a pro rata, in-kind distribution, without additional consideration, and not a purchase or sale of securities, by Samsara LP in respect of redeemed interests in Samsara LP.  Of the shares distributed by Samsara LP, (i) 47,498 were distributed to redeeming limited partners, (ii) 14,937 shares were distributed to Samsara BioCapital GP, LLC (\"Samsara LLC\"), the general partner of Samsara LP, in respect of redeemed interests of non-managing members of Samsara LLC that were retained by Samsara LLC, and (iii) 4,471 shares were distributed to Samsara BioCapital Partners, L.P. (\"Samsara BioCapital Partners\"), in respect of the redeemed interest of a limited partner of Samsara LP that has been acquired by Samsara BioCapital Partners."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"The shares held by Samsara LP reflects the disposition of 244,300\nshares, to Samsara Opportunity Fund as described in footnote (1), in which each of Samsara LLC and Dr. Akkaraju had no pecuniary interest."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Securities are held by Samsara LP. Samsara LLC is the general partner of Samsara LP and may be deemed to beneficially own the shares held by Samsara LP. Dr. Akkaraju has voting and investment power over the shares held by Samsara LP and, accordingly, may be deemed to beneficially own the shares held by Samsara LP. Each of the Reporting Persons disclaims beneficial ownership in these shares except to the extent of its or his respective pecuniary interest therein."}],"balance_after":10657028,"source":{"system":"sec-edgar","filing":"0001231919-26-000532","document":"form4-05222026_110527.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1754068/000123191926000532/form4-05222026_110527.xml","form_type":"4"}},{"id":766022,"issuer":{"id":6805,"kind":"organization","name":"Kalaris Therapeutics, Inc."},"owners":[{"id":32933,"kind":"person","name":"AKKARAJU SRINIVAS","position":1,"cik":"0001253170","reported_name":"AKKARAJU SRINIVAS","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44746,"kind":"organization","name":"Samsara BioCapital, L.P.","position":2,"cik":"0001699737","reported_name":"Samsara BioCapital, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44747,"kind":"organization","name":"Samsara BioCapital GP, LLC","position":3,"cik":"0001888829","reported_name":"Samsara BioCapital GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44748,"kind":"organization","name":"Samsara Opportunity Fund, L.P.","position":4,"cik":"0002086193","reported_name":"Samsara Opportunity Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44749,"kind":"organization","name":"Samsara Opportunity Fund GP, LLC","position":5,"cik":"0002086456","reported_name":"Samsara Opportunity Fund GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-05-22T23:47:34.000Z","date":"2026-05-20","kind":"purchase","planned":false,"acquired":true,"shares":244300,"price":4.83,"value":1179969.0,"ownership":{"direct":false,"nature":"By Samsara Opportunity Fund, L.P."},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the purchase of shares from Samsara BioCapital, L.P. (\"Samsara LP\") in a privately negotiated transaction."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Securities are directly held by Samsara Opportunity Fund, L.P. (\"Samsara Opportunity Fund\"). Samsara Opportunity Fund GP, LLC (\"Samsara Opportunity GP\") is the general partner of Samsara Opportunity Fund and may be deemed to beneficially own the securities held by Samsara Opportunity Fund. Dr. Srinivas Akkaraju, MD, Ph.D. has voting and investment power over the securities held by Samsara Opportunity Fund and, accordingly, may be deemed to beneficially own the securities held by Samsara Opportunity Fund. Each of the Reporting Persons disclaims beneficial ownership in these securities except to the extent of its or his pecuniary interest therein."}],"balance_after":2224147,"source":{"system":"sec-edgar","filing":"0001231919-26-000532","document":"form4-05222026_110527.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1754068/000123191926000532/form4-05222026_110527.xml","form_type":"4"}},{"id":901136,"issuer":{"id":6805,"kind":"organization","name":"Kalaris Therapeutics, Inc."},"owners":[{"id":32933,"kind":"person","name":"AKKARAJU SRINIVAS","position":1,"cik":"0001253170","reported_name":"AKKARAJU SRINIVAS","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44746,"kind":"organization","name":"Samsara BioCapital, L.P.","position":2,"cik":"0001699737","reported_name":"Samsara BioCapital, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44747,"kind":"organization","name":"Samsara BioCapital GP, LLC","position":3,"cik":"0001888829","reported_name":"Samsara BioCapital GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44748,"kind":"organization","name":"Samsara Opportunity Fund, L.P.","position":4,"cik":"0002086193","reported_name":"Samsara Opportunity Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44749,"kind":"organization","name":"Samsara Opportunity Fund GP, LLC","position":5,"cik":"0002086456","reported_name":"Samsara Opportunity Fund GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2026-02-18T01:15:32.000Z","date":"2025-12-18","kind":"purchase","planned":false,"acquired":true,"shares":479847,"price":10.42,"value":5000005.74,"ownership":{"direct":false,"nature":"By Samsara Opportunity Fund, L.P."},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the purchase of shares from Samsara BioCapital, L.P. (\"Samsara LP\") in a privately negotiated transaction."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Represents the number of shares held as of the date of this filing, including the shares purchased by Samsara Opportunity Fund, L.P. (\"Samsara Opportunity Fund\") on December 22, 2025, as reported in the reporting persons' Form 4 filed with the SEC on December 22, 2025 (the \"Prior Report\").  The Prior Report is deemed amended hereby."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Securities are directly held by Samsara Opportunity Fund. Samsara Opportunity Fund GP, LLC (\"Samsara Opportunity GP\") is the general partner of Samsara Opportunity Fund and may be deemed to beneficially own the securities held by Samsara Opportunity Fund. The Reporting Person has voting and investment power over the shares held by Samsara Opportunity Fund and, accordingly, may be deemed to beneficially own the shares held by Samsara Opportunity Fund. The Reporting Person disclaims beneficial ownership in these securities except to the extent of his pecuniary interest therein."}],"balance_after":1979847,"source":{"system":"sec-edgar","filing":"0001231919-26-000166","document":"form4-02182026_010226.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1754068/000123191926000166/form4-02182026_010226.xml","form_type":"4"}},{"id":961036,"issuer":{"id":6805,"kind":"organization","name":"Kalaris Therapeutics, Inc."},"owners":[{"id":32933,"kind":"person","name":"AKKARAJU SRINIVAS","position":1,"cik":"0001253170","reported_name":"AKKARAJU SRINIVAS","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44748,"kind":"organization","name":"Samsara Opportunity Fund, L.P.","position":2,"cik":"0002086193","reported_name":"Samsara Opportunity Fund, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":44749,"kind":"organization","name":"Samsara Opportunity Fund GP, LLC","position":3,"cik":"0002086456","reported_name":"Samsara Opportunity Fund GP, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2025-12-22T21:15:40.000Z","date":"2025-12-22","kind":"grant","planned":false,"acquired":true,"shares":1500000,"price":10,"value":15000000.0,"ownership":{"direct":false,"nature":"By Samsara Opportunity Fund, L.P."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Securities are directly held by Samsara Opportunity Fund, L.P. (\"Samsara Opportunity Fund\"). Samsara Opportunity Fund GP, LLC (\"Samsara Opportunity GP\") is the general partner of Samsara Opportunity Fund and may be deemed to beneficially own the securities held by Samsara Opportunity Fund. Samsara Opportunity GP and Dr. Akkaraju have voting and investment power over the securities held by Samsara Opportunity Fund and, accordingly, may be deemed to beneficially own the securities held by Samsara Opportunity Fund. Each of the Reporting Persons disclaims beneficial ownership in these securities except to the extent of his or its respective pecuniary interest therein."}],"balance_after":1500000,"source":{"system":"sec-edgar","filing":"0001231919-25-000652","document":"form4-12222025_091234.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1754068/000123191925000652/form4-12222025_091234.xml","form_type":"4"}}]}