{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-23-069099","form_type":"8-K","ticker":null,"cik":"0001888012","company_name":"HilleVax, Inc.","filed_at":"2023-12-08T23:59:59+00:00","discovered_at":"2026-05-14T18:03:31.302247+00:00","generated_at":"2026-06-07T15:45:47.998361+00:00","sec_items":["5.03","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"confidence":"high","headline":"HilleVax amends bylaws to adopt universal proxy rule and enhance stockholder proposal disclosures","bullets":["Board approved amended bylaws effective Dec 8, 2023, addressing SEC universal proxy rules under Rule 14a-19.","Enhanced disclosure requirements for stockholder director nominations and other business proposals, including ownership info.","Amended bylaws include technical, modernizing, and clarifying changes."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-23-069099","json":"https://secwatch.observer/filing/0000950170-23-069099.json","markdown":"https://secwatch.observer/filing/0000950170-23-069099.md","text":"https://secwatch.observer/filing/0000950170-23-069099.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1888012/000095017023069099/0000950170-23-069099-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1888012/000095017023069099/hlvx-20231208.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-07T15:45:47.998361+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":"003923116d0d00d966dc5f002e8f61aae53eb990","claim":"HilleVax, Inc.: Amended and restated bylaws to address universal proxy rules and enhance procedural mechanics for stockholder nominations and proposals (effective 2023-12-08).","evidence_excerpt":"the Board of Directors (the “Board”) of HilleVax, Inc. (the “Company”) approved and adopted amended and restated bylaws (the “Amended and Restated Bylaws”), which became effective the same day. Among other things, the amendments effected by the Amended and Restated Bylaws: • address the universal proxy rules adopted by the U.S. Securities and Exchange Commission, by clarifying that no person may solicit proxies in support of a director nominee other than the Board’s nominees unless such person has complied with Rule 14a-19 under the Securities Exchange Act of 1934, as amended, including applicable notice and solicitation requirements; and • enhance procedural mechanics and disclosure requirements in connection with stockholder nominations of directors and submissions of proposals regarding other business at stockholder meetings","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1888012/000095017023069099/0000950170-23-069099-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"bylaw amendment"},{"label":"Effective","value":"2023-12-08"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}