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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":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The total number of shares of the Issuer's Common Stock owned before giving effect to the reported sale included 2,500 shares previously acquired pursuant to the Issuer's Employee Stock Purchase Plan in one or more transactions that are exempt pursuant to Rules 16b-3(c) and 16b-3(d)."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001209191-23-047608","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1382101/000120919123047608/doc4.xml","form_type":"4"}},{"id":1795067,"issuer":{"id":5797,"kind":"organization","name":"SUTRO BIOPHARMA, INC.","symbol":"STRO"},"owners":[{"id":110137,"kind":"person","name":"Shtylla Brunilda","position":1,"cik":"0001966915","reported_name":"Shtylla Brunilda","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Business Officer"}}],"security":"Common Stock","published_at":"2023-08-28T20:18:22.000Z","date":"2023-08-25","kind":"sale","planned":false,"acquired":false,"shares":11613,"price":4.5881,"value":53281.6053,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. 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