{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-039969","form_type":"8-K","ticker":"SYBX","cik":"0001527599","company_name":"SYNLOGIC, INC.","filed_at":"2024-02-20T23:59:59+00:00","discovered_at":"2026-05-14T18:03:24.498562+00:00","generated_at":"2026-06-05T23:02:24.087611+00:00","sec_items":["1.01","3.03","5.03","8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Synlogic adopts one-year poison pill after unsolicited share accumulation; hires Ladenburg for strategic review","bullets":["Rights plan triggered at 15% ownership (20% for passive institutional investors); expires Feb 20, 2025.","Ladenburg Thalmann engaged as financial advisor to assist with strategic review to maximize shareholder value.","Rights become exercisable at $12.00 per right; holders other than triggering party can buy shares at 50% discount.","Grandfathering for existing holders above threshold; rights redeemable for $0.001 before trigger.","Plan adopted following unsolicited stock accumulation by an unnamed investor."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-039969","json":"https://secwatch.observer/filing/0001193125-24-039969.json","markdown":"https://secwatch.observer/filing/0001193125-24-039969.md","text":"https://secwatch.observer/filing/0001193125-24-039969.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1527599/000119312524039969/0001193125-24-039969-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1527599/000119312524039969/d768289d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-05T23:02:24.087611+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":"0e29c454b082b5c52f7b62a03048bfa0b069dc64","claim":"SYNLOGIC, INC.: Filed Certificate of Designations for Series A Junior Participating Preferred Stock in connection with adoption of Rights Agreement (effective 2024-02-20).","evidence_excerpt":"In connection with the adoption of the Rights Agreement, on February 20, 2024, the Company filed a Certificate of Designations, Preferences and Rights of Series A Junior Participating Preferred Stock (the “Certificate of Designations”), with the Secretary of State of the State of Delaware.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1527599/000119312524039969/0001193125-24-039969-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2024-02-20"}],"fact_type":"governance_change"},{"claim_id":"45b9bdef03353843c8acfbda99c01532efeaaf92","claim":"SYNLOGIC, INC. entered into Rights Agreement with Equiniti Trust Company LLC (effective 2024-02-20).","evidence_excerpt":"the Company entered into a Rights Agreement (the “Rights Agreement”), dated as of February 20, 2024, between the Company and Equiniti Trust Company LLC, as rights agent.","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1527599/000119312524039969/0001193125-24-039969-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Counterparty","value":"Equiniti Trust Company LLC"},{"label":"Effective","value":"2024-02-20"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}