{"transactions":[{"id":1583768,"issuer":{"id":11424,"kind":"organization","name":"Harpoon Therapeutics, Inc.","symbol":"HARP"},"owners":[{"id":93219,"kind":"person","name":"New Leaf Biopharma Opportunities II, L.P.","position":1,"cik":"0001735293","reported_name":"New Leaf Biopharma Opportunities II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93220,"kind":"person","name":"New Leaf Ventures III, L.P.","position":2,"cik":"0001625653","reported_name":"New Leaf Ventures III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93221,"kind":"person","name":"New Leaf Venture Associates III, L.P.","position":3,"cik":"0001625656","reported_name":"New Leaf Venture Associates III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93222,"kind":"person","name":"New Leaf Venture Management III, L.L.C.","position":4,"cik":"0001625657","reported_name":"New Leaf Venture Management III, L.L.C.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93223,"kind":"person","name":"New Leaf BPO Associates II, L.P.","position":5,"cik":"0001740783","reported_name":"New Leaf BPO Associates II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93224,"kind":"person","name":"New Leaf BPO Management II, L.L.C","position":6,"cik":"0001740755","reported_name":"New Leaf BPO Management II, L.L.C","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93225,"kind":"person","name":"Lathi Vijay K","position":7,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock Warrant (Right to Buy)","published_at":"2024-03-11T17:28:46.000Z","date":"2024-03-11","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":85750,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of January 7, 2024, by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company (\"Parent\"), and Hawaii Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (\"Merger Sub\"), pursuant to which Merger Sub merged with and into the Issuer on March 11, 2024, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"Pursuant to the terms of the Merger Agreement, at the Effective Time, by virtue of the Merger and without any further action on the part of the holders thereof or the parties to the Merger Agreement, each warrant that was outstanding and unexercised immediately prior to the Effective Time, in accordance with its terms, ceased to represent a warrant exercisable for Common Stock and became a warrant exercisable for the Common Stock Merger Consideration that such holder would have been entitled to receive if such warrant had been exercised immediately prior to the Effective Time."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). The sole general partner of NLV-III is New Leaf Venture Associates III,L.P. (\"NLVA-III\"). The sole general partner of NLVA-III is New Leaf Venture Management III, L.L.C. (\"Management-III\"). Each of NLVA-III and Management-III disclaim beneficial ownership of these securities and this report shall not be deemed an admission that NLVA-III or Management-III are beneficial owners of such securities for purposes of Section 16 or any other purpose, except to the extent of their respective pecuniary interests therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Ronald Hunt, a board member of the Issuer, and Vijay K. Lathi (collectively, the \"NLV-III Managers\") are managing directors of Management-III and may each be deemed to have shared voting and investment power with respect to these securities. Each of the NLV-III Managers disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein."}],"balance_after":0,"derivative":{"exercise_price":5.8345,"exercise_date":"2023-10-25","expiration_date":"2026-10-25","underlying":"Common Stock","underlying_shares":85750},"source":{"system":"sec-edgar","filing":"0000950170-24-029449","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000095017024029449/ownership.xml","form_type":"4"}},{"id":1583767,"issuer":{"id":11424,"kind":"organization","name":"Harpoon Therapeutics, Inc.","symbol":"HARP"},"owners":[{"id":93219,"kind":"person","name":"New Leaf Biopharma Opportunities II, L.P.","position":1,"cik":"0001735293","reported_name":"New Leaf Biopharma Opportunities II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93220,"kind":"person","name":"New Leaf Ventures III, L.P.","position":2,"cik":"0001625653","reported_name":"New Leaf Ventures III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93221,"kind":"person","name":"New Leaf Venture Associates III, L.P.","position":3,"cik":"0001625656","reported_name":"New Leaf Venture Associates III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93222,"kind":"person","name":"New Leaf Venture Management III, L.L.C.","position":4,"cik":"0001625657","reported_name":"New Leaf Venture Management III, L.L.C.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93223,"kind":"person","name":"New Leaf BPO Associates II, L.P.","position":5,"cik":"0001740783","reported_name":"New Leaf BPO Associates II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93224,"kind":"person","name":"New Leaf BPO Management II, L.L.C","position":6,"cik":"0001740755","reported_name":"New Leaf BPO Management II, L.L.C","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93225,"kind":"person","name":"Lathi Vijay K","position":7,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock Warrant (Right to Buy)","published_at":"2024-03-11T17:28:46.000Z","date":"2024-03-11","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":686000,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of January 7, 2024, by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company (\"Parent\"), and Hawaii Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (\"Merger Sub\"), pursuant to which Merger Sub merged with and into the Issuer on March 11, 2024, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"Pursuant to the terms of the Merger Agreement, at the Effective Time, by virtue of the Merger and without any further action on the part of the holders thereof or the parties to the Merger Agreement, each warrant that was outstanding and unexercised immediately prior to the Effective Time, in accordance with its terms, ceased to represent a warrant exercisable for Common Stock and became a warrant exercisable for the Common Stock Merger Consideration that such holder would have been entitled to receive if such warrant had been exercised immediately prior to the Effective Time."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). The sole general partner of NLV-III is New Leaf Venture Associates III,L.P. (\"NLVA-III\"). The sole general partner of NLVA-III is New Leaf Venture Management III, L.L.C. (\"Management-III\"). Each of NLVA-III and Management-III disclaim beneficial ownership of these securities and this report shall not be deemed an admission that NLVA-III or Management-III are beneficial owners of such securities for purposes of Section 16 or any other purpose, except to the extent of their respective pecuniary interests therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Ronald Hunt, a board member of the Issuer, and Vijay K. Lathi (collectively, the \"NLV-III Managers\") are managing directors of Management-III and may each be deemed to have shared voting and investment power with respect to these securities. Each of the NLV-III Managers disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein."}],"balance_after":0,"derivative":{"exercise_price":5.8345,"exercise_date":"2023-10-25","expiration_date":"2026-10-25","underlying":"Common Stock","underlying_shares":686000},"source":{"system":"sec-edgar","filing":"0000950170-24-029449","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000095017024029449/ownership.xml","form_type":"4"}},{"id":1583766,"issuer":{"id":11424,"kind":"organization","name":"Harpoon Therapeutics, Inc.","symbol":"HARP"},"owners":[{"id":93219,"kind":"person","name":"New Leaf Biopharma Opportunities II, L.P.","position":1,"cik":"0001735293","reported_name":"New Leaf Biopharma Opportunities II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93220,"kind":"person","name":"New Leaf Ventures III, L.P.","position":2,"cik":"0001625653","reported_name":"New Leaf Ventures III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93221,"kind":"person","name":"New Leaf Venture Associates III, L.P.","position":3,"cik":"0001625656","reported_name":"New Leaf Venture Associates III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93222,"kind":"person","name":"New Leaf Venture Management III, L.L.C.","position":4,"cik":"0001625657","reported_name":"New Leaf Venture Management III, L.L.C.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93223,"kind":"person","name":"New Leaf BPO Associates II, L.P.","position":5,"cik":"0001740783","reported_name":"New Leaf BPO Associates II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93224,"kind":"person","name":"New Leaf BPO Management II, L.L.C","position":6,"cik":"0001740755","reported_name":"New Leaf BPO Management II, L.L.C","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93225,"kind":"person","name":"Lathi Vijay K","position":7,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock Warrant (Right to Buy)","published_at":"2024-03-11T17:28:46.000Z","date":"2024-03-11","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":299430,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of January 7, 2024, by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company (\"Parent\"), and Hawaii Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (\"Merger Sub\"), pursuant to which Merger Sub merged with and into the Issuer on March 11, 2024, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"Pursuant to the terms of the Merger Agreement, at the Effective Time, by virtue of the Merger and without any further action on the part of the holders thereof or the parties to the Merger Agreement, each warrant that was outstanding and unexercised immediately prior to the Effective Time, in accordance with its terms, ceased to represent a warrant exercisable for Common Stock and became a warrant exercisable for the Common Stock Merger Consideration that such holder would have been entitled to receive if such warrant had been exercised immediately prior to the Effective Time."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of January 7, 2024, by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company (\"Parent\"), and Hawaii Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (\"Merger Sub\"), pursuant to which Merger Sub merged with and into the Issuer on March 11, 2024, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the \"Merger\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Pursuant to the terms of the Merger Agreement, at the effective time of the Merger (the \"Effective Time\"), each outstanding share of Common Stock was cancelled and automatically converted into the right to receive $23.00 in cash, without interest (the \"Common Stock Merger Consideration\")."}],"balance_after":0,"derivative":{"exercise_price":9.7889,"exercise_date":"2023-03-23","expiration_date":"2031-03-23","underlying":"Common Stock","underlying_shares":299430},"source":{"system":"sec-edgar","filing":"0000950170-24-029449","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000095017024029449/ownership.xml","form_type":"4"}},{"id":1583765,"issuer":{"id":11424,"kind":"organization","name":"Harpoon Therapeutics, Inc.","symbol":"HARP"},"owners":[{"id":93219,"kind":"person","name":"New Leaf Biopharma Opportunities II, L.P.","position":1,"cik":"0001735293","reported_name":"New Leaf Biopharma Opportunities II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93220,"kind":"person","name":"New Leaf Ventures III, L.P.","position":2,"cik":"0001625653","reported_name":"New Leaf Ventures III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93221,"kind":"person","name":"New Leaf Venture Associates III, L.P.","position":3,"cik":"0001625656","reported_name":"New Leaf Venture Associates III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93222,"kind":"person","name":"New Leaf Venture Management III, L.L.C.","position":4,"cik":"0001625657","reported_name":"New Leaf Venture Management III, L.L.C.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93223,"kind":"person","name":"New Leaf BPO Associates II, L.P.","position":5,"cik":"0001740783","reported_name":"New Leaf BPO Associates II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93224,"kind":"person","name":"New Leaf BPO Management II, L.L.C","position":6,"cik":"0001740755","reported_name":"New Leaf BPO Management II, L.L.C","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93225,"kind":"person","name":"Lathi Vijay K","position":7,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"8.000% Series A Redeemable Preferred Stock","published_at":"2024-03-11T17:28:46.000Z","date":"2024-03-11","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":10000,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of January 7, 2024, by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company (\"Parent\"), and Hawaii Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (\"Merger Sub\"), pursuant to which Merger Sub merged with and into the Issuer on March 11, 2024, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Pursuant to the terms of the Merger Agreement, at the Effective Time, each share of the Issuer's Series A Redeemable Preferred Stock, par value of $0.0001 per share (\"Series A Preferred Stock\") issued and outstanding was cancelled and the holder thereof was entitled to receive $3,577.77 per share of Series A Preferred Stock in respect of each Series A Preferred Stock determined in accordance with the terms of the Series A Preferred Stock, subject to applicable withholding taxes."},{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of January 7, 2024, by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company (\"Parent\"), and Hawaii Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (\"Merger Sub\"), pursuant to which Merger Sub merged with and into the Issuer on March 11, 2024, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the \"Merger\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of January 7, 2024, by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company (\"Parent\"), and Hawaii Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (\"Merger Sub\"), pursuant to which Merger Sub merged with and into the Issuer on March 11, 2024, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the \"Merger\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F2","text":"Pursuant to the terms of the Merger Agreement, at the effective time of the Merger (the \"Effective Time\"), each outstanding share of Common Stock was cancelled and automatically converted into the right to receive $23.00 in cash, without interest (the \"Common Stock Merger Consideration\")."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000950170-24-029449","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000095017024029449/ownership.xml","form_type":"4"}},{"id":1583764,"issuer":{"id":11424,"kind":"organization","name":"Harpoon Therapeutics, Inc.","symbol":"HARP"},"owners":[{"id":93219,"kind":"person","name":"New Leaf Biopharma Opportunities II, L.P.","position":1,"cik":"0001735293","reported_name":"New Leaf Biopharma Opportunities II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93220,"kind":"person","name":"New Leaf Ventures III, L.P.","position":2,"cik":"0001625653","reported_name":"New Leaf Ventures III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93221,"kind":"person","name":"New Leaf Venture Associates III, L.P.","position":3,"cik":"0001625656","reported_name":"New Leaf Venture Associates III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93222,"kind":"person","name":"New Leaf Venture Management III, L.L.C.","position":4,"cik":"0001625657","reported_name":"New Leaf Venture Management III, L.L.C.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93223,"kind":"person","name":"New Leaf BPO Associates II, L.P.","position":5,"cik":"0001740783","reported_name":"New Leaf BPO Associates II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93224,"kind":"person","name":"New Leaf BPO Management II, L.L.C","position":6,"cik":"0001740755","reported_name":"New Leaf BPO Management II, L.L.C","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93225,"kind":"person","name":"Lathi Vijay K","position":7,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-03-11T17:28:46.000Z","date":"2024-03-11","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":395783,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of January 7, 2024, by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company (\"Parent\"), and Hawaii Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (\"Merger Sub\"), pursuant to which Merger Sub merged with and into the Issuer on March 11, 2024, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Pursuant to the terms of the Merger Agreement, at the effective time of the Merger (the \"Effective Time\"), each outstanding share of Common Stock was cancelled and automatically converted into the right to receive $23.00 in cash, without interest (the \"Common Stock Merger Consideration\")."},{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of January 7, 2024, by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company (\"Parent\"), and Hawaii Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (\"Merger Sub\"), pursuant to which Merger Sub merged with and into the Issuer on March 11, 2024, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the \"Merger\")."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). The sole general partner of NLV-III is New Leaf Venture Associates III,L.P. (\"NLVA-III\"). The sole general partner of NLVA-III is New Leaf Venture Management III, L.L.C. (\"Management-III\"). Each of NLVA-III and Management-III disclaim beneficial ownership of these securities and this report shall not be deemed an admission that NLVA-III or Management-III are beneficial owners of such securities for purposes of Section 16 or any other purpose, except to the extent of their respective pecuniary interests therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Ronald Hunt, a board member of the Issuer, and Vijay K. Lathi (collectively, the \"NLV-III Managers\") are managing directors of Management-III and may each be deemed to have shared voting and investment power with respect to these securities. Each of the NLV-III Managers disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000950170-24-029449","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000095017024029449/ownership.xml","form_type":"4"}},{"id":1583763,"issuer":{"id":11424,"kind":"organization","name":"Harpoon Therapeutics, Inc.","symbol":"HARP"},"owners":[{"id":93219,"kind":"person","name":"New Leaf Biopharma Opportunities II, L.P.","position":1,"cik":"0001735293","reported_name":"New Leaf Biopharma Opportunities II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93220,"kind":"person","name":"New Leaf Ventures III, L.P.","position":2,"cik":"0001625653","reported_name":"New Leaf Ventures III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93221,"kind":"person","name":"New Leaf Venture Associates III, L.P.","position":3,"cik":"0001625656","reported_name":"New Leaf Venture Associates III, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93222,"kind":"person","name":"New Leaf Venture Management III, L.L.C.","position":4,"cik":"0001625657","reported_name":"New Leaf Venture Management III, L.L.C.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93223,"kind":"person","name":"New Leaf BPO Associates II, L.P.","position":5,"cik":"0001740783","reported_name":"New Leaf BPO Associates II, L.P.","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93224,"kind":"person","name":"New Leaf BPO Management II, L.L.C","position":6,"cik":"0001740755","reported_name":"New Leaf BPO Management II, L.L.C","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93225,"kind":"person","name":"Lathi Vijay K","position":7,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2024-03-11T17:28:46.000Z","date":"2024-03-11","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":1463386,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of January 7, 2024, by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company (\"Parent\"), and Hawaii Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (\"Merger Sub\"), pursuant to which Merger Sub merged with and into the Issuer on March 11, 2024, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Pursuant to the terms of the Merger Agreement, at the effective time of the Merger (the \"Effective Time\"), each outstanding share of Common Stock was cancelled and automatically converted into the right to receive $23.00 in cash, without interest (the \"Common Stock Merger Consideration\")."},{"field":"acquired","element":"transactionAcquiredDisposedCode","label":"F1","text":"This Form 4 reports securities disposed of pursuant to the terms of the Agreement and Plan of Merger (the \"Merger Agreement\"), dated as of January 7, 2024, by and among the Issuer, Merck Sharp & Dohme LLC, a New Jersey limited liability company (\"Parent\"), and Hawaii Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (\"Merger Sub\"), pursuant to which Merger Sub merged with and into the Issuer on March 11, 2024, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the \"Merger\")."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"These shares are held directly by New Leaf Biopharma Opportunities II, L.P. (\"BPO-II\"). The sole general partner of BPO-II is New Leaf BPO Associates II, L.P. (\"NLBA-II\"). The sole general partner of NLBA-II is New Leaf BPO Management II, L.L.C. (\"BPO Management-II\"). Each of NLBA-II and BPO Management-II disclaim beneficial ownership of these securities and this report shall not be deemed an admission that NLBA-II or BPO Management-II are beneficial owners of such securities for purposes of Section 16 or any other purpose, except to the extent of their respective pecuniary interests therein."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F4","text":"Ronald Hunt, a board member of the Issuer, and Vijay K. Lathi (collectively, the \"BPO-II Managing Directors\") are managing directors of BPO Management-II and may each be deemed to have shared voting and investment power with respect to these securities. Each of the BPO-II Managing Directors disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000950170-24-029449","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000095017024029449/ownership.xml","form_type":"4"}},{"id":1754244,"issuer":{"id":11424,"kind":"organization","name":"Harpoon Therapeutics, Inc.","symbol":"HARP"},"owners":[{"id":93219,"kind":"person","name":"New Leaf Biopharma Opportunities II, L.P.","position":1,"cik":"0001735293","reported_name":"New Leaf Biopharma Opportunities II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93220,"kind":"person","name":"New Leaf Ventures III, L.P.","position":2,"cik":"0001625653","reported_name":"New Leaf Ventures III, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93221,"kind":"person","name":"New Leaf Venture Associates III, L.P.","position":3,"cik":"0001625656","reported_name":"New Leaf Venture Associates III, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93222,"kind":"person","name":"New Leaf Venture Management III, L.L.C.","position":4,"cik":"0001625657","reported_name":"New Leaf Venture Management III, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93223,"kind":"person","name":"New Leaf BPO Associates II, L.P.","position":5,"cik":"0001740783","reported_name":"New Leaf BPO Associates II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93224,"kind":"person","name":"New Leaf BPO Management II, L.L.C","position":6,"cik":"0001740755","reported_name":"New Leaf BPO Management II, L.L.C","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93225,"kind":"person","name":"Lathi Vijay K","position":7,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock Warrant (Right to Buy)","published_at":"2023-10-27T16:41:26.000Z","date":"2023-10-25","kind":"purchase","planned":false,"acquired":true,"shares":85750,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F8","text":"The exercise price is also subject to adjustment pursuant to the Common Stock Warrant issued on October 25, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Shares of the Issuer's Common Stock and accompanying warrants were purchased in the Issuer's private placement of Common Stock and warrants pursuant to a Securities Purchase Agreement, dated October 22, 2023, by and among the Issuer and the other purchasers named therein. The shares of Common Stock and warrants acquired were purchased at a price representative of $5.8345 per share of Common Stock and accompanying warrant."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). The sole general partner of NLV-III is New Leaf Venture Associates III,L.P. (\"NLVA-III\"). The sole general partner of NLVA-III is New Leaf Venture Management III, L.L.C. (\"Management-III\"). Each of NLVA-III and Management-III disclaim beneficial ownership of these securities and this report shall not be deemed an admission that NLVA-III or Management-III are beneficial owners of such securities for purposes of Section 16 or any other purpose, except to the extent of their respective pecuniary interests therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Ronald Hunt, a board member of the Issuer, and Vijay K. Lathi (collectively, the \"NLV-III Managers\") are managing directors of Management-III and may each be deemed to have shared voting and investment power with respect to these securities. Each of the NLV-III Managers disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein."}],"balance_after":85750,"derivative":{"exercise_price":5.8345,"exercise_date":"2023-10-25","expiration_date":"2026-10-25","underlying":"Common Stock","underlying_shares":85750},"source":{"system":"sec-edgar","filing":"0000899243-23-020044","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924323020044/doc4.xml","form_type":"4"}},{"id":1754243,"issuer":{"id":11424,"kind":"organization","name":"Harpoon Therapeutics, Inc.","symbol":"HARP"},"owners":[{"id":93219,"kind":"person","name":"New Leaf Biopharma Opportunities II, L.P.","position":1,"cik":"0001735293","reported_name":"New Leaf Biopharma Opportunities II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93220,"kind":"person","name":"New Leaf Ventures III, L.P.","position":2,"cik":"0001625653","reported_name":"New Leaf Ventures III, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93221,"kind":"person","name":"New Leaf Venture Associates III, L.P.","position":3,"cik":"0001625656","reported_name":"New Leaf Venture Associates III, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93222,"kind":"person","name":"New Leaf Venture Management III, L.L.C.","position":4,"cik":"0001625657","reported_name":"New Leaf Venture Management III, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93223,"kind":"person","name":"New Leaf BPO Associates II, L.P.","position":5,"cik":"0001740783","reported_name":"New Leaf BPO Associates II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93224,"kind":"person","name":"New Leaf BPO Management II, L.L.C","position":6,"cik":"0001740755","reported_name":"New Leaf BPO Management II, L.L.C","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93225,"kind":"person","name":"Lathi Vijay K","position":7,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock Warrant (Right to Buy)","published_at":"2023-10-27T16:41:26.000Z","date":"2023-10-25","kind":"purchase","planned":false,"acquired":true,"shares":686000,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F8","text":"The exercise price is also subject to adjustment pursuant to the Common Stock Warrant issued on October 25, 2023."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Shares of the Issuer's Common Stock and accompanying warrants were purchased in the Issuer's private placement of Common Stock and warrants pursuant to a Securities Purchase Agreement, dated October 22, 2023, by and among the Issuer and the other purchasers named therein. The shares of Common Stock and warrants acquired were purchased at a price representative of $5.8345 per share of Common Stock and accompanying warrant."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"These shares are held directly by New Leaf Biopharma Opportunities II, L.P. (\"BPO-II\"). The sole general partner of BPO-II is New Leaf BPO Associates II, L.P. (\"NLBA-II\"). The sole general partner of NLBA-II is New Leaf BPO Management II, L.L.C. (\"BPO Management-II\"). Each of NLBA-II and BPO Management-II disclaim beneficial ownership of these securities and this report shall not be deemed an admission that NLBA-II or BPO Management-II are beneficial owners of such securities for purposes of Section 16 or any other purpose, except to the extent of their respective pecuniary interests therein."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F4","text":"Ronald Hunt, a board member of the Issuer, and Vijay K. Lathi (collectively, the \"BPO-II Managing Directors\") are managing directors of BPO Management-II and may each be deemed to have shared voting and investment power with respect to these securities. Each of the BPO-II Managing Directors disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein."}],"balance_after":686000,"derivative":{"exercise_price":5.8345,"exercise_date":"2023-10-25","expiration_date":"2026-10-25","underlying":"Common Stock","underlying_shares":686000},"source":{"system":"sec-edgar","filing":"0000899243-23-020044","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924323020044/doc4.xml","form_type":"4"}},{"id":1754242,"issuer":{"id":11424,"kind":"organization","name":"Harpoon Therapeutics, Inc.","symbol":"HARP"},"owners":[{"id":93219,"kind":"person","name":"New Leaf Biopharma Opportunities II, L.P.","position":1,"cik":"0001735293","reported_name":"New Leaf Biopharma Opportunities II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93220,"kind":"person","name":"New Leaf Ventures III, L.P.","position":2,"cik":"0001625653","reported_name":"New Leaf Ventures III, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93221,"kind":"person","name":"New Leaf Venture Associates III, L.P.","position":3,"cik":"0001625656","reported_name":"New Leaf Venture Associates III, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93222,"kind":"person","name":"New Leaf Venture Management III, L.L.C.","position":4,"cik":"0001625657","reported_name":"New Leaf Venture Management III, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93223,"kind":"person","name":"New Leaf BPO Associates II, L.P.","position":5,"cik":"0001740783","reported_name":"New Leaf BPO Associates II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93224,"kind":"person","name":"New Leaf BPO Management II, L.L.C","position":6,"cik":"0001740755","reported_name":"New Leaf BPO Management II, L.L.C","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93225,"kind":"person","name":"Lathi Vijay K","position":7,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-10-27T16:41:26.000Z","date":"2023-10-25","kind":"purchase","planned":false,"acquired":true,"shares":171500,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares of the Issuer's Common Stock and accompanying warrants were purchased in the Issuer's private placement of Common Stock and warrants pursuant to a Securities Purchase Agreement, dated October 22, 2023, by and among the Issuer and the other purchasers named therein. The shares of Common Stock and warrants acquired were purchased at a price representative of $5.8345 per share of Common Stock and accompanying warrant."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Shares of the Issuer's Common Stock and accompanying warrants were purchased in the Issuer's private placement of Common Stock and warrants pursuant to a Securities Purchase Agreement, dated October 22, 2023, by and among the Issuer and the other purchasers named therein. The shares of Common Stock and warrants acquired were purchased at a price representative of $5.8345 per share of Common Stock and accompanying warrant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Shares reflect a 1:10 reverse stock split of the Issuer's Common Stock effective September 1, 2023."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). The sole general partner of NLV-III is New Leaf Venture Associates III,L.P. (\"NLVA-III\"). The sole general partner of NLVA-III is New Leaf Venture Management III, L.L.C. (\"Management-III\"). Each of NLVA-III and Management-III disclaim beneficial ownership of these securities and this report shall not be deemed an admission that NLVA-III or Management-III are beneficial owners of such securities for purposes of Section 16 or any other purpose, except to the extent of their respective pecuniary interests therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Ronald Hunt, a board member of the Issuer, and Vijay K. Lathi (collectively, the \"NLV-III Managers\") are managing directors of Management-III and may each be deemed to have shared voting and investment power with respect to these securities. Each of the NLV-III Managers disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein."}],"balance_after":395783,"source":{"system":"sec-edgar","filing":"0000899243-23-020044","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924323020044/doc4.xml","form_type":"4"}},{"id":1754241,"issuer":{"id":11424,"kind":"organization","name":"Harpoon Therapeutics, Inc.","symbol":"HARP"},"owners":[{"id":93219,"kind":"person","name":"New Leaf Biopharma Opportunities II, L.P.","position":1,"cik":"0001735293","reported_name":"New Leaf Biopharma Opportunities II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93220,"kind":"person","name":"New Leaf Ventures III, L.P.","position":2,"cik":"0001625653","reported_name":"New Leaf Ventures III, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93221,"kind":"person","name":"New Leaf Venture Associates III, L.P.","position":3,"cik":"0001625656","reported_name":"New Leaf Venture Associates III, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93222,"kind":"person","name":"New Leaf Venture Management III, L.L.C.","position":4,"cik":"0001625657","reported_name":"New Leaf Venture Management III, L.L.C.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93223,"kind":"person","name":"New Leaf BPO Associates II, L.P.","position":5,"cik":"0001740783","reported_name":"New Leaf BPO Associates II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93224,"kind":"person","name":"New Leaf BPO Management II, L.L.C","position":6,"cik":"0001740755","reported_name":"New Leaf BPO Management II, L.L.C","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":93225,"kind":"person","name":"Lathi Vijay K","position":7,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2023-10-27T16:41:26.000Z","date":"2023-10-25","kind":"purchase","planned":false,"acquired":true,"shares":1372000,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares of the Issuer's Common Stock and accompanying warrants were purchased in the Issuer's private placement of Common Stock and warrants pursuant to a Securities Purchase Agreement, dated October 22, 2023, by and among the Issuer and the other purchasers named therein. The shares of Common Stock and warrants acquired were purchased at a price representative of $5.8345 per share of Common Stock and accompanying warrant."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Shares of the Issuer's Common Stock and accompanying warrants were purchased in the Issuer's private placement of Common Stock and warrants pursuant to a Securities Purchase Agreement, dated October 22, 2023, by and among the Issuer and the other purchasers named therein. The shares of Common Stock and warrants acquired were purchased at a price representative of $5.8345 per share of Common Stock and accompanying warrant."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Shares reflect a 1:10 reverse stock split of the Issuer's Common Stock effective September 1, 2023."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F3","text":"These shares are held directly by New Leaf Biopharma Opportunities II, L.P. (\"BPO-II\"). The sole general partner of BPO-II is New Leaf BPO Associates II, L.P. (\"NLBA-II\"). The sole general partner of NLBA-II is New Leaf BPO Management II, L.L.C. (\"BPO Management-II\"). Each of NLBA-II and BPO Management-II disclaim beneficial ownership of these securities and this report shall not be deemed an admission that NLBA-II or BPO Management-II are beneficial owners of such securities for purposes of Section 16 or any other purpose, except to the extent of their respective pecuniary interests therein."},{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F4","text":"Ronald Hunt, a board member of the Issuer, and Vijay K. Lathi (collectively, the \"BPO-II Managing Directors\") are managing directors of BPO Management-II and may each be deemed to have shared voting and investment power with respect to these securities. Each of the BPO-II Managing Directors disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein."}],"balance_after":1463386,"source":{"system":"sec-edgar","filing":"0000899243-23-020044","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924323020044/doc4.xml","form_type":"4"}},{"id":3912134,"issuer":{"id":72802,"kind":"organization","name":"Iterum Therapeutics plc","symbol":"ITRM"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24504,"kind":"person","name":"Ratcliffe Liam","position":2,"cik":"0001547100","reported_name":"Ratcliffe Liam","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B-2 Preferred Shares","published_at":"2018-05-31T16:54:17.000Z","date":"2018-05-30","kind":"exercise","acquired":false,"shares":148603,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By New Leaf Ventures III, L.P."},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"The Series B-2 Preferred Shares automatically converted into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer for no additional consideration."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Series B-2 Preferred Shares automatically converted into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer for no additional consideration."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Not applicable."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). New Leaf Venture Associates III, L.P. (\"NLVA-III LP\") is the general partner of NLV-III and New Leaf Venture Management III, L.L.C. (\"NLVM-III LLC\") is the general partner of NLVA-III LP, and each of NLVA-III LP and NLVM-III LLC may be deemed to have sole voting, investment and dispositive power with respect to the shares held by NLV-III. Vijay Lathi, Liam Ratcliffe and Ronald Hunt, a member of the Issuer's Board of Directors, (the \"Managing Directors\") are the managing directors of NLVM-III LLC and may be deemed to have shared voting, investment and dispositive power with respect to the shares held by NLV-III. The Managing Directors, NLVA-III LP and NLVM-III LLC each disclaim Section 16 beneficial ownership of the securities held by NLV-III, except to the extent of their respective pecuniary interest therein, if any."}],"balance_after":0,"derivative":{"underlying":"Ordinary Shares","underlying_shares":148603},"source":{"system":"sec-edgar","filing":"0001209191-18-034404","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000120919118034404/doc4.xml","form_type":"4"}},{"id":3912133,"issuer":{"id":72802,"kind":"organization","name":"Iterum Therapeutics plc","symbol":"ITRM"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24504,"kind":"person","name":"Ratcliffe Liam","position":2,"cik":"0001547100","reported_name":"Ratcliffe Liam","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series B-1 Preferred Shares","published_at":"2018-05-31T16:54:17.000Z","date":"2018-05-30","kind":"exercise","acquired":false,"shares":178230,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By New Leaf Ventures III, L.P."},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"The Series B-1 Preferred Shares automatically converted into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer for no additional consideration."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Series B-1 Preferred Shares automatically converted into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer for no additional consideration."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Not applicable."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). New Leaf Venture Associates III, L.P. (\"NLVA-III LP\") is the general partner of NLV-III and New Leaf Venture Management III, L.L.C. (\"NLVM-III LLC\") is the general partner of NLVA-III LP, and each of NLVA-III LP and NLVM-III LLC may be deemed to have sole voting, investment and dispositive power with respect to the shares held by NLV-III. Vijay Lathi, Liam Ratcliffe and Ronald Hunt, a member of the Issuer's Board of Directors, (the \"Managing Directors\") are the managing directors of NLVM-III LLC and may be deemed to have shared voting, investment and dispositive power with respect to the shares held by NLV-III. The Managing Directors, NLVA-III LP and NLVM-III LLC each disclaim Section 16 beneficial ownership of the securities held by NLV-III, except to the extent of their respective pecuniary interest therein, if any."}],"balance_after":0,"derivative":{"underlying":"Ordinary Shares","underlying_shares":178230},"source":{"system":"sec-edgar","filing":"0001209191-18-034404","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000120919118034404/doc4.xml","form_type":"4"}},{"id":3912132,"issuer":{"id":72802,"kind":"organization","name":"Iterum Therapeutics plc","symbol":"ITRM"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24504,"kind":"person","name":"Ratcliffe Liam","position":2,"cik":"0001547100","reported_name":"Ratcliffe Liam","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series A Preferred Shares","published_at":"2018-05-31T16:54:17.000Z","date":"2018-05-30","kind":"exercise","acquired":false,"shares":466793,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By New Leaf Ventures III, L.P."},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series A Preferred Shares automatically converted into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer for no additional consideration."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series A Preferred Shares automatically converted into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer for no additional consideration."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"Not applicable."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). New Leaf Venture Associates III, L.P. (\"NLVA-III LP\") is the general partner of NLV-III and New Leaf Venture Management III, L.L.C. (\"NLVM-III LLC\") is the general partner of NLVA-III LP, and each of NLVA-III LP and NLVM-III LLC may be deemed to have sole voting, investment and dispositive power with respect to the shares held by NLV-III. Vijay Lathi, Liam Ratcliffe and Ronald Hunt, a member of the Issuer's Board of Directors, (the \"Managing Directors\") are the managing directors of NLVM-III LLC and may be deemed to have shared voting, investment and dispositive power with respect to the shares held by NLV-III. The Managing Directors, NLVA-III LP and NLVM-III LLC each disclaim Section 16 beneficial ownership of the securities held by NLV-III, except to the extent of their respective pecuniary interest therein, if any."}],"balance_after":0,"derivative":{"underlying":"Ordinary Shares","underlying_shares":466793},"source":{"system":"sec-edgar","filing":"0001209191-18-034404","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000120919118034404/doc4.xml","form_type":"4"}},{"id":3912131,"issuer":{"id":72802,"kind":"organization","name":"Iterum Therapeutics plc","symbol":"ITRM"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24504,"kind":"person","name":"Ratcliffe Liam","position":2,"cik":"0001547100","reported_name":"Ratcliffe Liam","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Ordinary Shares","published_at":"2018-05-31T16:54:17.000Z","date":"2018-05-30","kind":"purchase","acquired":true,"shares":384615,"price":13,"value":4999995.0,"ownership":{"direct":false,"nature":"By New Leaf Biopharma Opportunities II, L.P."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"These shares are held directly by New Leaf Biopharma Opportunities II, L.P. (\"NBPO-II\"). New Leaf BPO Associates II, L.P. (\"NBPO-IIA\") is the general partner of NBPO-II and New Leaf BPO Management II, L.L.C. (\"NBPO-IIM\") is the general partner of NBPO-IIA, and each of NBPO-IIA and NBPO-IIM may be deemed to have sole voting, investment and dispositive power with respect to the shares held by NBPO-II. The Managing Directors are the managing directors of NBPO-IIM and may be deemed to have shared voting, investment and dispositive power with respect to the shares held by NBPO-II. The Managing Directors, NBPO-IIA and NBPO-IIM each disclaim Section 16 beneficial ownership of the securities held by NBPO-II, except to the extent of their respective pecuniary interest therein, if any."}],"balance_after":384615,"source":{"system":"sec-edgar","filing":"0001209191-18-034404","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000120919118034404/doc4.xml","form_type":"4"}},{"id":3912130,"issuer":{"id":72802,"kind":"organization","name":"Iterum Therapeutics plc","symbol":"ITRM"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24504,"kind":"person","name":"Ratcliffe Liam","position":2,"cik":"0001547100","reported_name":"Ratcliffe Liam","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Ordinary Shares","published_at":"2018-05-31T16:54:17.000Z","date":"2018-05-30","kind":"purchase","acquired":true,"shares":278062,"price":13,"value":3614806.0,"ownership":{"direct":false,"nature":"By New Leaf Ventures III, L.P."},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). New Leaf Venture Associates III, L.P. (\"NLVA-III LP\") is the general partner of NLV-III and New Leaf Venture Management III, L.L.C. (\"NLVM-III LLC\") is the general partner of NLVA-III LP, and each of NLVA-III LP and NLVM-III LLC may be deemed to have sole voting, investment and dispositive power with respect to the shares held by NLV-III. Vijay Lathi, Liam Ratcliffe and Ronald Hunt, a member of the Issuer's Board of Directors, (the \"Managing Directors\") are the managing directors of NLVM-III LLC and may be deemed to have shared voting, investment and dispositive power with respect to the shares held by NLV-III. The Managing Directors, NLVA-III LP and NLVM-III LLC each disclaim Section 16 beneficial ownership of the securities held by NLV-III, except to the extent of their respective pecuniary interest therein, if any."}],"balance_after":1071688,"source":{"system":"sec-edgar","filing":"0001209191-18-034404","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000120919118034404/doc4.xml","form_type":"4"}},{"id":3912129,"issuer":{"id":72802,"kind":"organization","name":"Iterum Therapeutics plc","symbol":"ITRM"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24504,"kind":"person","name":"Ratcliffe Liam","position":2,"cik":"0001547100","reported_name":"Ratcliffe Liam","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Ordinary Shares","published_at":"2018-05-31T16:54:17.000Z","date":"2018-05-30","kind":"exercise","acquired":true,"shares":148603,"ownership":{"direct":false,"nature":"By New Leaf Ventures III, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The Series B-2 Preferred Shares automatically converted into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer for no additional consideration."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). New Leaf Venture Associates III, L.P. (\"NLVA-III LP\") is the general partner of NLV-III and New Leaf Venture Management III, L.L.C. (\"NLVM-III LLC\") is the general partner of NLVA-III LP, and each of NLVA-III LP and NLVM-III LLC may be deemed to have sole voting, investment and dispositive power with respect to the shares held by NLV-III. Vijay Lathi, Liam Ratcliffe and Ronald Hunt, a member of the Issuer's Board of Directors, (the \"Managing Directors\") are the managing directors of NLVM-III LLC and may be deemed to have shared voting, investment and dispositive power with respect to the shares held by NLV-III. The Managing Directors, NLVA-III LP and NLVM-III LLC each disclaim Section 16 beneficial ownership of the securities held by NLV-III, except to the extent of their respective pecuniary interest therein, if any."}],"balance_after":793626,"source":{"system":"sec-edgar","filing":"0001209191-18-034404","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000120919118034404/doc4.xml","form_type":"4"}},{"id":3912128,"issuer":{"id":72802,"kind":"organization","name":"Iterum Therapeutics plc","symbol":"ITRM"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24504,"kind":"person","name":"Ratcliffe Liam","position":2,"cik":"0001547100","reported_name":"Ratcliffe Liam","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Ordinary Shares","published_at":"2018-05-31T16:54:17.000Z","date":"2018-05-30","kind":"exercise","acquired":true,"shares":178230,"ownership":{"direct":false,"nature":"By New Leaf Ventures III, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The Series B-1 Preferred Shares automatically converted into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer for no additional consideration."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). New Leaf Venture Associates III, L.P. (\"NLVA-III LP\") is the general partner of NLV-III and New Leaf Venture Management III, L.L.C. (\"NLVM-III LLC\") is the general partner of NLVA-III LP, and each of NLVA-III LP and NLVM-III LLC may be deemed to have sole voting, investment and dispositive power with respect to the shares held by NLV-III. Vijay Lathi, Liam Ratcliffe and Ronald Hunt, a member of the Issuer's Board of Directors, (the \"Managing Directors\") are the managing directors of NLVM-III LLC and may be deemed to have shared voting, investment and dispositive power with respect to the shares held by NLV-III. The Managing Directors, NLVA-III LP and NLVM-III LLC each disclaim Section 16 beneficial ownership of the securities held by NLV-III, except to the extent of their respective pecuniary interest therein, if any."}],"balance_after":645023,"source":{"system":"sec-edgar","filing":"0001209191-18-034404","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000120919118034404/doc4.xml","form_type":"4"}},{"id":3912127,"issuer":{"id":72802,"kind":"organization","name":"Iterum Therapeutics plc","symbol":"ITRM"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":24504,"kind":"person","name":"Ratcliffe Liam","position":2,"cik":"0001547100","reported_name":"Ratcliffe Liam","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Ordinary Shares","published_at":"2018-05-31T16:54:17.000Z","date":"2018-05-30","kind":"exercise","acquired":true,"shares":466793,"ownership":{"direct":false,"nature":"By New Leaf Ventures III, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Series A Preferred Shares automatically converted into Ordinary Shares of the Issuer on a 1-to-1 basis upon closing of the initial public offering of the Issuer for no additional consideration."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares are held directly by New Leaf Ventures III, L.P. (\"NLV-III\"). New Leaf Venture Associates III, L.P. (\"NLVA-III LP\") is the general partner of NLV-III and New Leaf Venture Management III, L.L.C. (\"NLVM-III LLC\") is the general partner of NLVA-III LP, and each of NLVA-III LP and NLVM-III LLC may be deemed to have sole voting, investment and dispositive power with respect to the shares held by NLV-III. Vijay Lathi, Liam Ratcliffe and Ronald Hunt, a member of the Issuer's Board of Directors, (the \"Managing Directors\") are the managing directors of NLVM-III LLC and may be deemed to have shared voting, investment and dispositive power with respect to the shares held by NLV-III. The Managing Directors, NLVA-III LP and NLVM-III LLC each disclaim Section 16 beneficial ownership of the securities held by NLV-III, except to the extent of their respective pecuniary interest therein, if any."}],"balance_after":466793,"source":{"system":"sec-edgar","filing":"0001209191-18-034404","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000120919118034404/doc4.xml","form_type":"4"}},{"id":4000730,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-03-12T16:41:55.000Z","date":"2018-03-09","kind":"sale","acquired":false,"shares":84380,"price":66.3969,"value":5602570.422,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.00 to $66.93, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (4) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of NLV II. As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000899243-18-007131","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924318007131/doc4.xml","form_type":"4"}},{"id":4000729,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-03-12T16:41:55.000Z","date":"2018-03-08","kind":"sale","acquired":false,"shares":2659,"price":67.1704,"value":178606.0936,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.00 to $67.33, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of NLV II. As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":84380,"source":{"system":"sec-edgar","filing":"0000899243-18-007131","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924318007131/doc4.xml","form_type":"4"}},{"id":4000728,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-03-12T16:41:55.000Z","date":"2018-03-08","kind":"sale","acquired":false,"shares":26979,"price":66.5004,"value":1794114.2916,"ownership":{"direct":false,"nature":"See Footnote"},"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 $66.00 to $66.93, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission (\"SEC\"), upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of NLV II. As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":87039,"source":{"system":"sec-edgar","filing":"0000899243-18-007131","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924318007131/doc4.xml","form_type":"4"}},{"id":4033281,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-02-26T16:16:56.000Z","date":"2018-02-22","kind":"sale","acquired":false,"shares":45723,"price":65.6133,"value":3000036.9159,"ownership":{"direct":false,"nature":"See Footnote"},"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 $65.6000 to $65.6650, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission (\"SEC\"), upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of NLV II. As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":114018,"source":{"system":"sec-edgar","filing":"0000899243-18-005473","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924318005473/doc4.xml","form_type":"4"}},{"id":4039752,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-02-22T16:18:43.000Z","date":"2018-02-21","kind":"sale","acquired":false,"shares":44000,"price":64.1162,"value":2821112.8,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.92 to $64.615, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of NLV II. As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":159741,"source":{"system":"sec-edgar","filing":"0000899243-18-005036","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924318005036/doc4.xml","form_type":"4"}},{"id":4039751,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2018-02-22T16:18:43.000Z","date":"2018-02-20","kind":"sale","acquired":false,"shares":125000,"price":61.8091,"value":7726137.5,"ownership":{"direct":false,"nature":"See Footnote"},"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 $61.68 to $62.045, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission (\"SEC\"), upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of NLV II. As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":203741,"source":{"system":"sec-edgar","filing":"0000899243-18-005036","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924318005036/doc4.xml","form_type":"4"}},{"id":4139020,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-12-07T18:33:56.000Z","date":"2017-12-07","kind":"sale","acquired":false,"shares":72000,"price":52.7846,"value":3800491.2,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.30 to $53.21, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (5) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":328741,"source":{"system":"sec-edgar","filing":"0000899243-17-028194","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317028194/doc4.xml","form_type":"4"}},{"id":4139019,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-12-07T18:33:56.000Z","date":"2017-12-07","kind":"sale","acquired":false,"shares":6354,"price":52.1495,"value":331357.923,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.00 to $52.21, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (4) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":400741,"source":{"system":"sec-edgar","filing":"0000899243-17-028194","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317028194/doc4.xml","form_type":"4"}},{"id":4139018,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-12-07T18:33:56.000Z","date":"2017-12-06","kind":"sale","acquired":false,"shares":14216,"price":52.2855,"value":743290.668,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.00 to $52.54, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":407095,"source":{"system":"sec-edgar","filing":"0000899243-17-028194","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317028194/doc4.xml","form_type":"4"}},{"id":4139017,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-12-07T18:33:56.000Z","date":"2017-12-05","kind":"sale","acquired":false,"shares":57430,"price":52.4082,"value":3009802.926,"ownership":{"direct":false,"nature":"See Footnote"},"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 $52.25 to $52.73, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":421311,"source":{"system":"sec-edgar","filing":"0000899243-17-028194","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317028194/doc4.xml","form_type":"4"}},{"id":4155982,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-11-20T16:30:10.000Z","date":"2017-11-17","kind":"sale","acquired":false,"shares":125000,"price":52.1102,"value":6513775.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices ranging from $51.70 to $52.25, inclusive.  The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":478741,"source":{"system":"sec-edgar","filing":"0000899243-17-026975","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317026975/doc4.xml","form_type":"4"}},{"id":4155981,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-11-20T16:30:10.000Z","date":"2017-11-16","kind":"sale","acquired":false,"shares":100000,"price":52.0866,"value":5208660.0,"ownership":{"direct":false,"nature":"See Footnote"},"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 $51.75 to $52.34, inclusive.  The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is a member of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the sole general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the sole general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":603741,"source":{"system":"sec-edgar","filing":"0000899243-17-026975","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317026975/doc4.xml","form_type":"4"}},{"id":4208096,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock Warrant (Right to Buy)","published_at":"2017-09-15T14:06:44.000Z","date":"2017-09-13","kind":"other","acquired":false,"shares":72389,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"$0.0058827."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":0,"derivative":{"exercise_date":"2012-11-01","expiration_date":"2019-11-01","underlying":"Common Stock","underlying_shares":72389},"source":{"system":"sec-edgar","filing":"0000899243-17-022129","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317022129/doc4.xml","form_type":"4"}},{"id":4208095,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-09-15T14:06:44.000Z","date":"2017-09-13","kind":"sale","acquired":false,"shares":34603,"price":49.509,"value":1713159.927,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"This transaction was executed in multiple trades at prices ranging from $49.43 to $49.54. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":703741,"source":{"system":"sec-edgar","filing":"0000899243-17-022129","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317022129/doc4.xml","form_type":"4"}},{"id":4208094,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-09-15T14:06:44.000Z","date":"2017-09-13","kind":"sale","acquired":false,"shares":10,"price":45.824,"value":458.24,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"On September 13, 2017, NLV II exercised a warrant to purchase 72,389 share of IRTC common stock for $0.0058827 a share. NLV II paid the exercise price on a cashless basis, resulting in IRTC withholding 10 of the warrant shares to pay the exercise price and issuing to NLV II the remaining 72,379 shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":738344,"source":{"system":"sec-edgar","filing":"0000899243-17-022129","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317022129/doc4.xml","form_type":"4"}},{"id":4208093,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-09-15T14:06:44.000Z","date":"2017-09-13","kind":"other","acquired":true,"shares":72389,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"$0.0058827."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":738354,"source":{"system":"sec-edgar","filing":"0000899243-17-022129","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317022129/doc4.xml","form_type":"4"}},{"id":4260739,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Employee Stock Option (right to buy)","published_at":"2017-07-07T19:16:29.000Z","date":"2017-04-26","kind":"grant","acquired":true,"shares":3007,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The option vests in twelve equal monthly installments beginning on May 26, 2017."}],"balance_after":3007,"derivative":{"exercise_price":34.61,"expiration_date":"2027-04-26","underlying":"Common Stock","underlying_shares":3007},"source":{"system":"sec-edgar","filing":"0000899243-17-018094","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317018094/doc4.xml","form_type":"4"}},{"id":4260738,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-07-07T19:16:29.000Z","date":"2017-04-26","kind":"grant","acquired":true,"shares":1405,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reported securities are represented by restricted stock units (\"RSUs\"), which represents a contingent right to receive shares of IRTC common stock. The RSUs fully vest on April 26, 2018."}],"balance_after":1405,"source":{"system":"sec-edgar","filing":"0000899243-17-018094","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924317018094/doc4.xml","form_type":"4"}},{"id":4288226,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-06-08T17:37:52.000Z","date":"2017-06-08","kind":"sale","acquired":false,"shares":292000,"price":38.04,"value":11107680.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price (gross of commissions). These shares were sold in multiple transactions at prices ranging from $38.00 to $38.35, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\").  The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\").  Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\").  Associates II is the general partner of NLV II.  As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II.  The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":665965,"source":{"system":"sec-edgar","filing":"0001012975-17-000480","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000101297517000480/edgar.xml","form_type":"4"}},{"id":4288225,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-06-08T17:37:52.000Z","date":"2017-06-06","kind":"sale","acquired":false,"shares":138624,"price":36.63,"value":5077797.12,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price (gross of commissions). These shares were sold in multiple transactions at prices ranging from $36.50 to $36.71, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\").  The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\").  Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\").  Associates II is the general partner of NLV II.  As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II.  The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":957965,"source":{"system":"sec-edgar","filing":"0001012975-17-000480","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000101297517000480/edgar.xml","form_type":"4"}},{"id":4317873,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-16T18:21:30.000Z","date":"2017-05-16","kind":"sale","acquired":false,"shares":130000,"price":35.25,"value":4582500.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\").  The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\").  Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\").  Associates II is the general partner of NLV II.  As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II.  The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":1096589,"source":{"system":"sec-edgar","filing":"0001012975-17-000441","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000101297517000441/edgar.xml","form_type":"4"}},{"id":4317872,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-16T18:21:30.000Z","date":"2017-05-16","kind":"sale","acquired":false,"shares":80000,"price":36.26,"value":2900800.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price (net of commissions). These shares were sold in multiple transactions at prices ranging from $36.06 to $36.59, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\").  The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\").  Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\").  Associates II is the general partner of NLV II.  As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II.  The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":1226589,"source":{"system":"sec-edgar","filing":"0001012975-17-000441","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000101297517000441/edgar.xml","form_type":"4"}},{"id":4317871,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-16T18:21:30.000Z","date":"2017-05-15","kind":"sale","acquired":false,"shares":235000,"price":34.25,"value":8048750.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\").  The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\").  Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\").  Associates II is the general partner of NLV II.  As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II.  The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":1306589,"source":{"system":"sec-edgar","filing":"0001012975-17-000441","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000101297517000441/edgar.xml","form_type":"4"}},{"id":4317870,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2017-05-16T18:21:30.000Z","date":"2017-05-12","kind":"sale","acquired":false,"shares":200000,"price":34.25,"value":6850000.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\").  The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\").  Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\").  Associates II is the general partner of NLV II.  As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II.  The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":1541589,"source":{"system":"sec-edgar","filing":"0001012975-17-000441","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000101297517000441/edgar.xml","form_type":"4"}},{"id":4574775,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series D Preferred Stock Warrant (Right to Buy)","published_at":"2016-10-25T13:18:43.000Z","date":"2016-10-25","kind":"exercise","acquired":false,"shares":72389,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F4","text":"Reflects 5.882698 for 1 reverse stock split which became effective on October 5, 2016."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":0,"derivative":{"exercise_price":0.001,"exercise_date":"2012-11-01","expiration_date":"2019-11-01","underlying":"Common Stock","underlying_shares":72389},"source":{"system":"sec-edgar","filing":"0000899243-16-032255","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924316032255/doc4.xml","form_type":"4"}},{"id":4574774,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series E Convertible Preferred Stock","published_at":"2016-10-25T13:18:43.000Z","date":"2016-10-25","kind":"exercise","acquired":false,"shares":155548,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"The Series E Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The Series E Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Series E Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F4","text":"Reflects 5.882698 for 1 reverse stock split which became effective on October 5, 2016."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":155548},"source":{"system":"sec-edgar","filing":"0000899243-16-032255","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924316032255/doc4.xml","form_type":"4"}},{"id":4574773,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series D Convertible Preferred Stock","published_at":"2016-10-25T13:18:43.000Z","date":"2016-10-25","kind":"exercise","acquired":false,"shares":190154,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"The Series D Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Series D Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Series D Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F4","text":"Reflects 5.882698 for 1 reverse stock split which became effective on October 5, 2016."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":190154},"source":{"system":"sec-edgar","filing":"0000899243-16-032255","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924316032255/doc4.xml","form_type":"4"}},{"id":4574772,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Series C Convertible Preferred Stock","published_at":"2016-10-25T13:18:43.000Z","date":"2016-10-25","kind":"exercise","acquired":false,"shares":610136,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Series C Convertible Preferred Stock converted into Common Stock on a 2.24685484-for-1 basis and had no expiration date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Series C Convertible Preferred Stock converted into Common Stock on a 2.24685484-for-1 basis and had no expiration date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Series C Convertible Preferred Stock converted into Common Stock on a 2.24685484-for-1 basis and had no expiration date."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F4","text":"Reflects 5.882698 for 1 reverse stock split which became effective on October 5, 2016."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":1370887},"source":{"system":"sec-edgar","filing":"0000899243-16-032255","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924316032255/doc4.xml","form_type":"4"}},{"id":4574771,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2016-10-25T13:18:43.000Z","date":"2016-10-25","kind":"purchase","acquired":true,"shares":25000,"price":17,"value":425000.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Reflects 5.882698 for 1 reverse stock split which became effective on October 5, 2016."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":1741589,"source":{"system":"sec-edgar","filing":"0000899243-16-032255","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924316032255/doc4.xml","form_type":"4"}},{"id":4574770,"issuer":{"id":1499,"kind":"organization","name":"iRhythm Holdings, Inc.","symbol":"IRTC"},"owners":[{"id":93225,"kind":"person","name":"Lathi Vijay K","position":1,"cik":"0001340806","reported_name":"Lathi Vijay K","relationship":{"director":true,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2016-10-25T13:18:43.000Z","date":"2016-10-25","kind":"exercise","acquired":true,"shares":1716589,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The Series C Convertible Preferred Stock converted into Common Stock on a 2.24685484-for-1 basis and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The Series D Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The Series E Convertible Preferred Stock converted into Common Stock on a 1-for-1 basis and had no expiration date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"Reflects 5.882698 for 1 reverse stock split which became effective on October 5, 2016."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares directly beneficially owned by New Leaf Ventures II, L.P. (\"NLV II\"). The Reporting Person is an individual manager of New Leaf Venture Management II, L.L.C. (\"Management II\"). Management II is the general partner of New Leaf Venture Associates II, L.P. (\"Associates II\"). Associates II is the general partner of New Leaf Ventures II, L.P. (\"NLV II\"). As such, the Reporting Person shares voting and dispositive control with respect to the shares held by NLV II. The Reporting Person disclaims beneficial ownership of the shares held by NLV II, except to the extent of his proportionate pecuniary interest therein."}],"balance_after":1716589,"source":{"system":"sec-edgar","filing":"0000899243-16-032255","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1340806/000089924316032255/doc4.xml","form_type":"4"}}]}