Sutro Biopharma, Inc.

STRO·NASDAQ·$27.38Share Price as of 11/2·$265MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/12/26 10-QQ1 ended 03/31/2605/14/26 10-KFY 202503/23/26 10-QQ3 ended 09/30/2511/06/25 10-QQ2 ended 06/30/2508/07/25

Disclosures

8-KCurrent report08/12/26 8-KCurrent report06/08/26 8-KCurrent report05/14/26 8-KCurrent report03/23/26 8-KCurrent report02/10/26

Prospectuses and Registrations

424B3Prospectus04/01/26 S-3Shelf registration03/23/26 S-8Registration of securities for employees03/23/26 424B5Prospectus supplement02/10/26 S-8Registration of securities for employees05/30/25

Proxies

DEF 14ADefinitive proxy04/22/26 DEFA14AAdditional proxy materials04/22/26 DEF 14ADefinitive proxy04/25/25 DEFA14AAdditional proxy materials04/25/25 PRE 14APreliminary proxy04/14/25

Ownership

Form 4Insider transaction09/22/26 SC 13G/ABeneficial ownership (amended)08/14/26 SC 13G/ABeneficial ownership (amended)08/14/26 SC 13GBeneficial ownership07/30/26 Form 4Insider transaction06/09/26

Other

ARSAnnual report to shareholders04/22/26 EFFECTRequest for effectiveness04/01/26 CORRESPCorrespondence with the SEC03/30/26 UPLOADLetter from the SEC03/27/26 ARSAnnual report to shareholders04/25/25