{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-21-366358","form_type":"8-K","ticker":"PRTA","cik":"0001559053","company_name":"PROTHENA CORP PUBLIC LTD CO","filed_at":"2021-12-23T23:59:59+00:00","discovered_at":"2026-05-14T18:04:13.029463+00:00","generated_at":"2026-06-27T22:35:15.190240+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Prothena enters $250M at-the-market equity distribution agreement","bullets":["Agreement with Piper Sandler, Stifel, Cantor Fitzgerald, RBC Capital Markets, and JMP Securities.","Company may sell up to $250M of ordinary shares from time to time via ATM offerings.","Agents receive up to 3% commission on gross proceeds; company may set minimum sale price.","Offering terminates upon sale of all shares or earlier termination by either party.","Company is not obligated to sell any shares under the agreement."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-21-366358","json":"https://secwatch.observer/filing/0001193125-21-366358.json","markdown":"https://secwatch.observer/filing/0001193125-21-366358.md","text":"https://secwatch.observer/filing/0001193125-21-366358.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1559053/000119312521366358/0001193125-21-366358-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1559053/000119312521366358/d203387d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-27T22:35:15.190240+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"}