{"schema_version":"secwatch.filing_event.v1","accession":"0001641172-25-009854","form_type":"8-K","ticker":"GTBP","cik":"0000109657","company_name":"GT Biopharma, Inc.","filed_at":"2025-05-13T23:59:59+00:00","discovered_at":"2026-05-14T18:02:47.510698+00:00","generated_at":"2026-05-21T12:40:06.228272+00:00","sec_items":["1.01","3.02","3.03","5.03","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"GT Biopharma raises $5.45M via convertible preferred stock and warrants with greenshoe option up to $19.8M","bullets":["Private placement of up to 6,056 shares of Series L 10% Convertible Preferred Stock at $1,000 stated value; net proceeds $5.45M.","Conversion price $2.043 per share; warrants exercisable at same price for five years; full ratchet anti-dilution with floor of $0.454.","Dividends at 10% annual rate until May 2026, increasing to 12% thereafter; payable quarterly in cash or common stock.","Company to seek shareholder approval for issuance over 19.99% of outstanding common stock; officers/directors locked up.","Registration rights agreement requires filing within 30 days; liquidated damages of 1.5% per month if not effective within 90 days."],"urls":{"canonical":"https://secwatch.observer/filing/0001641172-25-009854","json":"https://secwatch.observer/filing/0001641172-25-009854.json","markdown":"https://secwatch.observer/filing/0001641172-25-009854.md","text":"https://secwatch.observer/filing/0001641172-25-009854.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/109657/000164117225009854/0001641172-25-009854-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/109657/000164117225009854/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-21T12:40:06.228272+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"}