secwatch.observer — SEC 8-K summary ====================================== Issuer: Seer, Inc. (SEER) CIK: 0001726445 Form: 8-K Filed at: 2026-09-18T20:06:57+00:00 Accession: 0001193125-26-395523 Event type: leadership Sentiment: neutral Materiality: 0.60 Item codes: 5.02 LLM model: deepseek-v4-flash:cloud@v2 Seer CFO/President David Horn resigns; CEO Farokhzad adds President, Endweiss named PFO/Treasurer -------------------------------------------------------------------------------- - David Horn resigns as President, CFO and Treasurer effective Oct 1, 2026, to pursue other interests; no disagreement with company. - CEO Omid Farokhzad, M.D. appointed President in addition to CEO/Chair effective Oct 1, 2026. - Charles Endweiss, VP FP&A, appointed Treasurer and principal financial/accounting officer effective Oct 1, 2026. - Horn's vested option exercise period extended to one year after resignation, contingent on signed release agreement. - Endweiss has been VP FP&A since Jan 2021, prior at Carbon; no family ties or disclosable transactions. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1726445/000119312526395523/0001193125-26-395523-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1726445/000119312526395523/d110986d8k.htm HTML page: https://secwatch.observer/filing/0001193125-26-395523 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer