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The shares were sold in multiple transactions at prices ranging from $0.760 to $0.872, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company, 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."}],"balance_after":168937,"source":{"system":"sec-edgar","filing":"0001193125-26-355913","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1636135/000119312526355913/ownership.xml","form_type":"4"}},{"id":682755,"issuer":{"id":721,"kind":"organization","name":"Invivyd, Inc.","symbol":"IVVD"},"owners":[{"id":22039,"kind":"person","name":"Duke William E.","position":1,"cik":"0001636135","reported_name":"Duke William E.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-08-19T00:10:24.000Z","date":"2026-08-17","kind":"sale","planned":true,"acquired":false,"shares":22355,"price":0.722,"value":16140.31,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"The sales reported on this Form 4 represent shares sold to satisfy the Reporting Person's tax withholding obligations upon vesting of an RSU award in non-discretionary \"sell-to-cover\" transactions pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on February 20, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $0.682 to $0.830, inclusive. The Reporting Person undertakes to provide to the Company, any security holder of the Company, or the staff of the U.S. Securities and Exchange Commission (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."}],"balance_after":187362,"source":{"system":"sec-edgar","filing":"0001193125-26-355913","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1636135/000119312526355913/ownership.xml","form_type":"4"}},{"id":682754,"issuer":{"id":721,"kind":"organization","name":"Invivyd, Inc.","symbol":"IVVD"},"owners":[{"id":22039,"kind":"person","name":"Duke William E.","position":1,"cik":"0001636135","reported_name":"Duke William E.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2026-08-19T00:10:24.000Z","date":"2026-08-15","kind":"exercise","planned":true,"acquired":true,"shares":102000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit (\"RSU\") represents a contingent right to receive one share of common stock of Invivyd, Inc. 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The Reporting Person undertakes to provide to the Company, any security holder of the Company, or the staff of the U.S. Securities and Exchange Commission (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."}],"balance_after":78987,"source":{"system":"sec-edgar","filing":"0000950170-25-110344","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1636135/000095017025110344/ownership.xml","form_type":"4"}},{"id":1061186,"issuer":{"id":721,"kind":"organization","name":"Invivyd, Inc.","symbol":"IVVD"},"owners":[{"id":22039,"kind":"person","name":"Duke William E.","position":1,"cik":"0001636135","reported_name":"Duke William E.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2025-08-20T01:25:51.000Z","date":"2025-08-15","kind":"exercise","planned":true,"acquired":true,"shares":99000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each restricted stock unit (\"RSU\") represents a contingent right to receive one share of common stock of Invivyd, Inc. 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