{"transactions":[{"id":3681339,"issuer":{"id":5797,"kind":"organization","name":"SUTRO BIOPHARMA, INC.","symbol":"STRO"},"owners":[{"id":160752,"kind":"person","name":"Worsley Stephen","position":1,"cik":"0001753062","reported_name":"Worsley Stephen","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Business Officer"}}],"security":"Stock Option (right to buy Common Stock)","published_at":"2019-01-31T17:11:58.000Z","date":"2019-01-29","kind":"grant","acquired":true,"shares":30000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests as to 2.0833% of the total shares monthly, beginning on February 28, 2019, with 100% of the total shares vested and exercisable on January 29, 2023, subject to the reporting person's provision of service to the issuer on each vesting date."}],"balance_after":30000,"derivative":{"exercise_price":10.45,"expiration_date":"2029-01-28","underlying":"Common Stock","underlying_shares":30000},"source":{"system":"sec-edgar","filing":"0001209191-19-006208","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1753062/000120919119006208/doc4.xml","form_type":"4"}},{"id":3806643,"issuer":{"id":5797,"kind":"organization","name":"SUTRO BIOPHARMA, INC.","symbol":"STRO"},"owners":[{"id":160752,"kind":"person","name":"Worsley Stephen","position":1,"cik":"0001753062","reported_name":"Worsley Stephen","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Business Officer"}}],"security":"Stock Option (right to buy Common Stock)","published_at":"2018-09-27T18:07:03.000Z","date":"2018-09-26","kind":"grant","acquired":true,"shares":203056,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The option vests as to 25% of the total shares on the one year anniversary of September 10, 2018 and then 2.0833% of the total shares vest monthly thereafter, with 100% of the total shares vested and exercisable on September 10, 2022, subject to the reporting person's provision of service to the issuer on each vesting date."}],"balance_after":203056,"derivative":{"exercise_price":15,"expiration_date":"2028-09-25","underlying":"Common Stock","underlying_shares":203056},"source":{"system":"sec-edgar","filing":"0001209191-18-052496","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1753062/000120919118052496/doc4.xml","form_type":"4"}}]}