secwatch.observer — SEC 8-K summary ====================================== Issuer: Annexon, Inc. (ANNX) CIK: 0001528115 Form: 8-K Filed at: 2026-08-10T20:35:51+00:00 Accession: 0001193125-26-342524 Event type: leadership Sentiment: neutral Materiality: 0.50 Item codes: 5.02, 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Annexon appoints Mark Blumenkranz to board; Muneer Satter steps down after 11 years -------------------------------------------------------------------------------- - Mark S. Blumenkranz appointed to Annexon board effective Aug 10, 2026, as Class II director with term to 2028 annual meeting. - He joins Audit Committee and Science and Technology Committee; receives $40k annual retainer and 175k-share initial option grant. - Muneer Satter resigned as director and committee roles effective immediately prior to Blumenkranz appointment; no disagreement cited. - Blumenkranz is Stanford emeritus professor; co-founded Adverum, Optimedica, Oculeve, Kedalion; retinal expertise relevant to vonaprument. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1528115/000119312526342524/0001193125-26-342524-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1528115/000119312526342524/d130710d8k.htm HTML page: https://secwatch.observer/filing/0001193125-26-342524 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer