{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-019327","form_type":"8-K","ticker":"FISN","cik":"0001918102","company_name":"DEEP FISSION, INC.","filed_at":"2026-02-25T23:59:59+00:00","discovered_at":"2026-05-14T18:02:36.753405+00:00","generated_at":"2026-05-16T00:28:49.814075+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Deep Fission appoints Chief Nuclear Officer; CEO receives $380K bonus","bullets":["Mark Pérès appointed Chief Nuclear Officer effective Feb 19, 2026; base salary $300,000, target bonus 30%, 25,000 RSUs with service- and liquidity-based vesting.","CEO Elizabeth Muller's target bonus raised from 50% to 100% of base salary for FY2026; one-time cash bonus of $380,000 paid in January 2026.","CFO Mark Schmitz base salary increased from $250,000 to $300,000 effective Feb 1, 2026; bonus target unchanged at 30%.","Pérès previously VP of Engineering at Deep Fission since Oct 2024; prior VP of Engineering at Kairos Power and Executive Project Director at Fluor."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-019327","json":"https://secwatch.observer/filing/0001104659-26-019327.json","markdown":"https://secwatch.observer/filing/0001104659-26-019327.md","text":"https://secwatch.observer/filing/0001104659-26-019327.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1918102/000110465926019327/0001104659-26-019327-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1918102/000110465926019327/tm267068d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T00:28:49.814075+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"}