Annexon, Inc. (ANNX) Holders & Ownership

Annexon, Inc. (ANNX) ownership: Top institutional holder: Redmile Group, LLC ($80.61M). Insider activity: Net Seller (4 buys, 16 sells). SEC EDGAR first-party data.

Top Institutional Holders (13F)

Source: SEC Form 13F
HolderSharesMarket ValueReported
Redmile Group, LLC14549768.00$80.61M2026-03-31
BlackRock, Inc.10938509.00$60.60M2026-03-31
FMR LLC10635648.00$58.92M2026-03-31
BVF INC/IL8698173.00$48.19M2026-03-31
VANGUARD GROUP INC7753387.00$38.92M2025-12-31
STATE STREET CORP6919255.00$38.33M2026-03-31
VANGUARD CAPITAL MANAGEMENT LLC5956589.00$33.00M2026-03-31
Bain Capital Life Sciences Investors, LLC5212674.00$28.88M2026-03-31

Insider Trading Activity (Form 4)

Source: SEC Form 4
InsiderTransactionValueDate
Sellnull2026-05-28
Buynull2026-05-28
Sellnull2026-05-11
Buynull2026-05-11
Sellnull2026-04-10
Buynull2026-04-10
Sellnull2026-03-10
Buynull2026-03-10

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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.