{"schema_version":"secwatch.filing_event.v1","accession":"0001759138-26-000041","form_type":"8-K","ticker":"CABA","cik":"0001759138","company_name":"Cabaletta Bio, Inc.","filed_at":"2026-09-14T12:00:53+00:00","discovered_at":"2026-09-14T12:05:00.759607+00:00","generated_at":"2026-09-14T12:05:21.160630+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Cabaletta Bio nets ~$128.2M gross from warrant exercises; 46M warrants exercised near expiry","bullets":["53,090,190 warrants issued June 2025 at $2.50/share, expiring Sept 12, 2026.","5,275,100 warrants exercised through June 30, 2026, raising ~$13.2M.","46,011,900 warrants exercised July 1–Sept 12, 2026, raising ~$115.0M.","Total gross proceeds from all warrant exercises ~$128.2M."],"urls":{"canonical":"https://secwatch.observer/filing/0001759138-26-000041","json":"https://secwatch.observer/filing/0001759138-26-000041.json","markdown":"https://secwatch.observer/filing/0001759138-26-000041.md","text":"https://secwatch.observer/filing/0001759138-26-000041.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1759138/000175913826000041/0001759138-26-000041-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1759138/000175913826000041/caba-20260914.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-09-14T12:05:21.160630+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}