{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-261658","form_type":"8-K","ticker":"STRO","cik":"0001382101","company_name":"SUTRO BIOPHARMA, INC.","filed_at":"2026-06-08T20:01:05+00:00","discovered_at":"2026-06-08T20:02:00.411520+00:00","generated_at":"2026-06-08T20:02:56.299205+00:00","sec_items":["5.07"],"event_type":"other","sentiment":"neutral","materiality_score":0.15,"calibrated_materiality_score":0.15,"confidence":"high","headline":"Sutro Biopharma stockholders elect three Class II directors and ratify auditor at 2026 annual meeting","bullets":["Directors Jane Chung (11.4M for), Connie Matsui (9.7M for), James Panek (9.7M for) elected to three-year terms.","Ratification of Ernst & Young as auditor for 2026 passed with 13.9M for, 501 against.","Non-binding advisory vote on named executive officer compensation approved with 11.3M for.","Broker non-votes totaled 2,540,863 on director election and say-on-pay items."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-261658","json":"https://secwatch.observer/filing/0001193125-26-261658.json","markdown":"https://secwatch.observer/filing/0001193125-26-261658.md","text":"https://secwatch.observer/filing/0001193125-26-261658.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1382101/000119312526261658/0001193125-26-261658-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1382101/000119312526261658/d116098d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-08T20:02:56.299205+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"cd9f02979ac0d60ed21a171edaf1753465e650d3","claim":"SUTRO BIOPHARMA, INC. shareholders approved Election of three Class II directors at the 2026-06-05 meeting.","evidence_excerpt":"On June 5, 2026, the Company held its 2026 Annual Meeting of Stockholders (the “ Annual Meeting ”), and the following proposals were adopted: 1. Election of three Class II directors","evidence_source":"SEC 8-K Item 5.07","evidence_url":"https://www.sec.gov/Archives/edgar/data/1382101/000119312526261658/0001193125-26-261658-index.htm","confidence":0.9,"family_label":"Shareholder Votes","details":[{"label":"Proposal","value":"director election"},{"label":"Outcome","value":"passed"},{"label":"Meeting","value":"2026-06-05"}],"fact_type":"shareholder_vote"},{"claim_id":"deddecf3a09000d0694e35f4fd645f8d98b55a64","claim":"SUTRO BIOPHARMA, INC. shareholders approved Ratification of the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026 at the 2026-06-05 meeting.","evidence_excerpt":"2. Ratification of the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026: Shares For Shares Against Shares Abstaining 13,893,289 501 5,883","evidence_source":"SEC 8-K Item 5.07","evidence_url":"https://www.sec.gov/Archives/edgar/data/1382101/000119312526261658/0001193125-26-261658-index.htm","confidence":0.9,"family_label":"Shareholder Votes","details":[{"label":"Proposal","value":"auditor ratification"},{"label":"Outcome","value":"passed"},{"label":"Meeting","value":"2026-06-05"}],"fact_type":"shareholder_vote"},{"claim_id":"f8372c6818c0cf54ec8e9602905bbdecd1c25cc4","claim":"SUTRO BIOPHARMA, INC. shareholders approved Approval, on a non-binding advisory basis, of the compensation of the Company’s named executive officers as disclosed in the proxy statement for the Annual Meeting at the 2026-06-05 meeting.","evidence_excerpt":"3. Approval, on a non-binding advisory basis, of the compensation of the Company’s named executive officers as disclosed in the proxy statement for the Annual Meeting: Shares For Shares Against Shares Abstaining Broker Non-Votes 11,329,946 22,412 6,452 2,540,863","evidence_source":"SEC 8-K Item 5.07","evidence_url":"https://www.sec.gov/Archives/edgar/data/1382101/000119312526261658/0001193125-26-261658-index.htm","confidence":0.9,"family_label":"Shareholder Votes","details":[{"label":"Proposal","value":"say on pay"},{"label":"Outcome","value":"passed"},{"label":"Meeting","value":"2026-06-05"}],"fact_type":"shareholder_vote"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}