{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-22-307391","form_type":"8-K","ticker":"PRTA","cik":"0001559053","company_name":"PROTHENA CORP PUBLIC LTD CO","filed_at":"2022-12-16T23:59:59+00:00","discovered_at":"2026-05-14T18:03:51.145618+00:00","generated_at":"2026-06-21T03:19:47.505746+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Prothena launches $172.4M public offering of 3.25M ordinary shares at $53.11/share","bullets":["Underwriters agreed to buy 3,250,000 ordinary shares at $53.11 per share; 30-day option for up to 487,500 additional shares.","Net proceeds expected to be approximately $172.4 million after discounts and expenses, assuming no underwriter option exercise.","Offering expected to close on December 19, 2022; lock-up agreements for directors, officers, and certain shareholders for 90 days.","Proceeds intended for general corporate purposes; underwriting agreement includes customary indemnification provisions."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-22-307391","json":"https://secwatch.observer/filing/0001193125-22-307391.json","markdown":"https://secwatch.observer/filing/0001193125-22-307391.md","text":"https://secwatch.observer/filing/0001193125-22-307391.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1559053/000119312522307391/0001193125-22-307391-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1559053/000119312522307391/d378186d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-21T03:19:47.505746+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"}