{"schema_version":"secwatch.filing_event.v1","accession":"0001641172-25-002752","form_type":"8-K","ticker":null,"cik":"0001811623","company_name":"PaxMedica, Inc.","filed_at":"2025-04-04T23:59:59+00:00","discovered_at":"2026-05-14T18:02:49.823966+00:00","generated_at":"2026-05-23T21:17:56.224537+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"PaxMedica board chairman Weisman and two directors resign amid PRV acquisition transition","bullets":["Howard J. Weisman resigns as chairman but remains CEO; Karen LaRochelle and John Coelho resign from board.","All resignations effective April 2, 2025, in connection with the previously disclosed transaction with PRV, LLC.","No dispute or disagreement with the company or board regarding operations, policies, or practices.","Company continues transition to becoming wholly-owned subsidiary of PRV, LLC."],"urls":{"canonical":"https://secwatch.observer/filing/0001641172-25-002752","json":"https://secwatch.observer/filing/0001641172-25-002752.json","markdown":"https://secwatch.observer/filing/0001641172-25-002752.md","text":"https://secwatch.observer/filing/0001641172-25-002752.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1811623/000164117225002752/0001641172-25-002752-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1811623/000164117225002752/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T21:17:56.224537+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":"03b0b1fb7d","claim":"Karen J. LaRochelle resigned as director at PaxMedica, Inc..","evidence_excerpt":"In addition, directors Karen J. LaRochelle and John Coelho also resigned from the Board on that date, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1811623/000164117225002752/0001641172-25-002752-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"director"}],"fact_type":"executive_change"},{"claim_id":"58f5237d4a","claim":"Howard J. Weisman resigned as chairman of the Board at PaxMedica, Inc..","evidence_excerpt":"On April 2, 2025, Howard J. Weisman, chairman of the Board of Directors (the “Board”) of PaxMedica, Inc., a Delaware corporation (the “Company”), tendered his resignation from that role effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1811623/000164117225002752/0001641172-25-002752-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"chairman of the Board"}],"fact_type":"executive_change"},{"claim_id":"d90f993bfe","claim":"John Coelho resigned as director at PaxMedica, Inc..","evidence_excerpt":"In addition, directors Karen J. LaRochelle and John Coelho also resigned from the Board on that date, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1811623/000164117225002752/0001641172-25-002752-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}