{"transactions":[{"id":1074766,"issuer":{"id":5607,"kind":"organization","name":"SHOULDER INNOVATIONS, INC.","symbol":"SI"},"owners":[{"id":76909,"kind":"organization","name":"LSV Associates II, LLC","position":1,"cik":"0001818388","reported_name":"LSV Associates II, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76910,"kind":"organization","name":"Lightstone Ventures II, L.P.","position":2,"cik":"0001699565","reported_name":"Lightstone Ventures II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76911,"kind":"organization","name":"Lightstone Ventures II (A), L.P.","position":3,"cik":"0001706610","reported_name":"Lightstone Ventures II (A), L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76912,"kind":"person","name":"Plain Henry A JR","position":4,"cik":"0001384286","reported_name":"Plain Henry A JR","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76913,"kind":"person","name":"George Jean","position":5,"cik":"0001291804","reported_name":"George Jean","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}}],"security":"Series D Convertible Preferred Stock","published_at":"2025-08-05T16:05:15.000Z","date":"2025-08-01","kind":"exercise","planned":false,"acquired":false,"shares":9950208,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"LSV Associates II, LLC is the general partner of Lightstone Ventures II, L.P. (\"LSV II\") and Lightstone Ventures II (A), L.P. (\"LSV II (A)\") and has sole voting and dispositive power with respect to the shares held by LSV II and LSV II (A). The reporting person is a managing director of LSV Associates II, LLC, and shares voting and dispositive power with respect to the shares held of record by LSV II and LSV II (A). Jean George, Michael A. Carusi and Henry A. Plain, Jr. are the managing directors of LSV Associates II, LLC, and share voting and dispositive power with respect to the shares held of record by LSV II and LSV II (A). Mr. Carusi is a director of the Issuer and files separate Section 16 reports. Each of the reporting persons disclaims beneficial ownership of such shares except to the extent of his, her or its respective pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Consists of (i) 1,036,638 shares of Common Stock underlying Series C Preferred Stock and 492,833 shares of Common Stock underlying Series D Preferred Stock held by LSV II; and (ii) 60,333 shares of Common Stock underlying Series C Preferred Stock and 28,666 shares of Common Stock underlying Series D Preferred Stock held by LSV II (A)."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":521499},"source":{"system":"sec-edgar","filing":"0001641172-25-022247","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1818388/000164117225022247/ownership.xml","form_type":"4"}},{"id":1074765,"issuer":{"id":5607,"kind":"organization","name":"SHOULDER INNOVATIONS, INC.","symbol":"SI"},"owners":[{"id":76909,"kind":"organization","name":"LSV Associates II, LLC","position":1,"cik":"0001818388","reported_name":"LSV Associates II, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76910,"kind":"organization","name":"Lightstone Ventures II, L.P.","position":2,"cik":"0001699565","reported_name":"Lightstone Ventures II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76911,"kind":"organization","name":"Lightstone Ventures II (A), L.P.","position":3,"cik":"0001706610","reported_name":"Lightstone Ventures II (A), L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76912,"kind":"person","name":"Plain Henry A JR","position":4,"cik":"0001384286","reported_name":"Plain Henry A JR","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76913,"kind":"person","name":"George Jean","position":5,"cik":"0001291804","reported_name":"George Jean","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}}],"security":"Series C Convertible Preferred Stock","published_at":"2025-08-05T16:05:15.000Z","date":"2025-08-01","kind":"exercise","planned":false,"acquired":false,"shares":20930233,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"LSV Associates II, LLC is the general partner of Lightstone Ventures II, L.P. (\"LSV II\") and Lightstone Ventures II (A), L.P. (\"LSV II (A)\") and has sole voting and dispositive power with respect to the shares held by LSV II and LSV II (A). The reporting person is a managing director of LSV Associates II, LLC, and shares voting and dispositive power with respect to the shares held of record by LSV II and LSV II (A). Jean George, Michael A. Carusi and Henry A. Plain, Jr. are the managing directors of LSV Associates II, LLC, and share voting and dispositive power with respect to the shares held of record by LSV II and LSV II (A). Mr. Carusi is a director of the Issuer and files separate Section 16 reports. Each of the reporting persons disclaims beneficial ownership of such shares except to the extent of his, her or its respective pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Consists of (i) 1,036,638 shares of Common Stock underlying Series C Preferred Stock and 492,833 shares of Common Stock underlying Series D Preferred Stock held by LSV II; and (ii) 60,333 shares of Common Stock underlying Series C Preferred Stock and 28,666 shares of Common Stock underlying Series D Preferred Stock held by LSV II (A)."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":1096971},"source":{"system":"sec-edgar","filing":"0001641172-25-022247","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1818388/000164117225022247/ownership.xml","form_type":"4"}},{"id":1074764,"issuer":{"id":5607,"kind":"organization","name":"SHOULDER INNOVATIONS, INC.","symbol":"SI"},"owners":[{"id":76909,"kind":"organization","name":"LSV Associates II, LLC","position":1,"cik":"0001818388","reported_name":"LSV Associates II, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76910,"kind":"organization","name":"Lightstone Ventures II, L.P.","position":2,"cik":"0001699565","reported_name":"Lightstone Ventures II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76911,"kind":"organization","name":"Lightstone Ventures II (A), L.P.","position":3,"cik":"0001706610","reported_name":"Lightstone Ventures II (A), L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76912,"kind":"person","name":"Plain Henry A JR","position":4,"cik":"0001384286","reported_name":"Plain Henry A JR","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76913,"kind":"person","name":"George Jean","position":5,"cik":"0001291804","reported_name":"George Jean","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}}],"security":"Common Stock","published_at":"2025-08-05T16:05:15.000Z","date":"2025-08-01","kind":"purchase","planned":false,"acquired":true,"shares":266666,"price":15,"value":3999990.0,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"LSV Associates II, LLC is the general partner of Lightstone Ventures II, L.P. (\"LSV II\") and Lightstone Ventures II (A), L.P. (\"LSV II (A)\") and has sole voting and dispositive power with respect to the shares held by LSV II and LSV II (A). The reporting person is a managing director of LSV Associates II, LLC, and shares voting and dispositive power with respect to the shares held of record by LSV II and LSV II (A). Jean George, Michael A. Carusi and Henry A. Plain, Jr. are the managing directors of LSV Associates II, LLC, and share voting and dispositive power with respect to the shares held of record by LSV II and LSV II (A). Mr. Carusi is a director of the Issuer and files separate Section 16 reports. Each of the reporting persons disclaims beneficial ownership of such shares except to the extent of his, her or its respective pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Following the transactions reported in this Form 4, (i) 1,781,479 shares of Common Stock are held by LSV II and (ii) 103,657 shares of Common Stock are held by LSV II (A)."}],"balance_after":1885136,"source":{"system":"sec-edgar","filing":"0001641172-25-022247","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1818388/000164117225022247/ownership.xml","form_type":"4"}},{"id":1074763,"issuer":{"id":5607,"kind":"organization","name":"SHOULDER INNOVATIONS, INC.","symbol":"SI"},"owners":[{"id":76909,"kind":"organization","name":"LSV Associates II, LLC","position":1,"cik":"0001818388","reported_name":"LSV Associates II, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76910,"kind":"organization","name":"Lightstone Ventures II, L.P.","position":2,"cik":"0001699565","reported_name":"Lightstone Ventures II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76911,"kind":"organization","name":"Lightstone Ventures II (A), L.P.","position":3,"cik":"0001706610","reported_name":"Lightstone Ventures II (A), L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76912,"kind":"person","name":"Plain Henry A JR","position":4,"cik":"0001384286","reported_name":"Plain Henry A JR","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}},{"id":76913,"kind":"person","name":"George Jean","position":5,"cik":"0001291804","reported_name":"George Jean","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"Former 10% Owner"}}],"security":"Common Stock","published_at":"2025-08-05T16:05:15.000Z","date":"2025-08-01","kind":"exercise","planned":false,"acquired":true,"shares":1618470,"ownership":{"direct":false,"nature":"See Footnotes"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"LSV Associates II, LLC is the general partner of Lightstone Ventures II, L.P. (\"LSV II\") and Lightstone Ventures II (A), L.P. (\"LSV II (A)\") and has sole voting and dispositive power with respect to the shares held by LSV II and LSV II (A). The reporting person is a managing director of LSV Associates II, LLC, and shares voting and dispositive power with respect to the shares held of record by LSV II and LSV II (A). Jean George, Michael A. Carusi and Henry A. Plain, Jr. are the managing directors of LSV Associates II, LLC, and share voting and dispositive power with respect to the shares held of record by LSV II and LSV II (A). Mr. Carusi is a director of the Issuer and files separate Section 16 reports. Each of the reporting persons disclaims beneficial ownership of such shares except to the extent of his, her or its respective pecuniary interest therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Following the transactions reported in this Form 4, (i) 1,781,479 shares of Common Stock are held by LSV II and (ii) 103,657 shares of Common Stock are held by LSV II (A)."}],"balance_after":1618470,"source":{"system":"sec-edgar","filing":"0001641172-25-022247","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1818388/000164117225022247/ownership.xml","form_type":"4"}},{"id":2471774,"issuer":{"id":6040,"kind":"organization","name":"ALX ONCOLOGY HOLDINGS INC"},"owners":[{"id":132355,"kind":"organization","name":"LSV Associates, LLC","position":1,"cik":"0001643828","reported_name":"LSV Associates, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":132356,"kind":"organization","name":"Lightstone Ventures, L.P.","position":2,"cik":"0001572522","reported_name":"Lightstone Ventures, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":132357,"kind":"organization","name":"Lightstone Ventures (A), L.P.","position":3,"cik":"0001572523","reported_name":"Lightstone Ventures (A), L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76909,"kind":"organization","name":"LSV Associates II, LLC","position":4,"cik":"0001818388","reported_name":"LSV Associates II, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76910,"kind":"organization","name":"Lightstone Ventures II, L.P.","position":5,"cik":"0001699565","reported_name":"Lightstone Ventures II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76911,"kind":"organization","name":"Lightstone Ventures II (A), L.P.","position":6,"cik":"0001706610","reported_name":"Lightstone Ventures II (A), L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76886,"kind":"person","name":"Carusi Michael A","position":7,"cik":"0001306506","reported_name":"Carusi Michael A","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76913,"kind":"person","name":"George Jean","position":8,"cik":"0001291804","reported_name":"George Jean","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76912,"kind":"person","name":"Plain Henry A JR","position":9,"cik":"0001384286","reported_name":"Plain Henry A JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-12-15T21:03:05.000Z","date":"2021-12-13","kind":"sale","acquired":false,"shares":60,"price":30.23,"value":1813.8,"ownership":{"direct":false,"nature":"By Lightstone Ventures (A), L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.11 to $30.29 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 range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held directly by Lightstone Ventures (A), L.P. (\"LV(A) LP\"). LSV Associates is the general partner of LV(A) LP and may be deemed to beneficially own the shares held by LV(A) LP. Michael A. Carusi, Jean M. George and Henry A. Plain, Jr. are the managing directors of LSV Associates and may be deemed to share voting and investment power over the shares held by LV(A) LP.  Each of LSV Associates and Messrs. Carusi, George and Plain disclaims beneficial ownership of these shares except to the extent of its, his or her respective pecuniary interest therein."}],"balance_after":285956,"source":{"system":"sec-edgar","filing":"0001209191-21-069867","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1818388/000120919121069867/doc4.xml","form_type":"4"}},{"id":2471773,"issuer":{"id":6040,"kind":"organization","name":"ALX ONCOLOGY HOLDINGS INC"},"owners":[{"id":132355,"kind":"organization","name":"LSV Associates, LLC","position":1,"cik":"0001643828","reported_name":"LSV Associates, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":132356,"kind":"organization","name":"Lightstone Ventures, L.P.","position":2,"cik":"0001572522","reported_name":"Lightstone Ventures, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":132357,"kind":"organization","name":"Lightstone Ventures (A), L.P.","position":3,"cik":"0001572523","reported_name":"Lightstone Ventures (A), L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76909,"kind":"organization","name":"LSV Associates II, LLC","position":4,"cik":"0001818388","reported_name":"LSV Associates II, LLC","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76910,"kind":"organization","name":"Lightstone Ventures II, L.P.","position":5,"cik":"0001699565","reported_name":"Lightstone Ventures II, L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76911,"kind":"organization","name":"Lightstone Ventures II (A), L.P.","position":6,"cik":"0001706610","reported_name":"Lightstone Ventures II (A), L.P.","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76886,"kind":"person","name":"Carusi Michael A","position":7,"cik":"0001306506","reported_name":"Carusi Michael A","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76913,"kind":"person","name":"George Jean","position":8,"cik":"0001291804","reported_name":"George Jean","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":76912,"kind":"person","name":"Plain Henry A JR","position":9,"cik":"0001384286","reported_name":"Plain Henry A JR","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Common Stock","published_at":"2021-12-15T21:03:05.000Z","date":"2021-12-13","kind":"sale","acquired":false,"shares":440,"price":30.23,"value":13301.2,"ownership":{"direct":false,"nature":"By Lightstone Ventures, L.P."},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.11 to $30.29 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 range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Shares are held directly by Lightstone Ventures, L.P. (\"LV LP\"). LSV Associates, LLC (LSV Associates), is the general partner of LV LP and may be deemed to beneficially own the shares held by LV LP. Michael A. Carusi, Jean M. George and Henry A. Plain, Jr. are the managing directors of LSV Associates and may be deemed to share voting and investment power over the shares held by LV LP.  Each of LSV Associates and Messrs. 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These shares were sold in multiple transactions at prices ranging from $29.00 to $29.95 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 range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Shares are held directly by Lightstone Ventures (A), L.P. (\"LV(A) LP\"). LSV Associates is the general partner of LV(A) LP and may be deemed to beneficially own the shares held by LV(A) LP. Michael A. Carusi, Jean M. George and Henry A. Plain, Jr. are the managing directors of LSV Associates and may be deemed to share voting and investment power over the shares held by LV(A) LP.  Each of LSV Associates and Messrs. 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