NASDAQ: ANNX
Annexon Inc Stock Ownership - Who owns Annexon?

Insider buying vs selling

Have Annexon Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
William H. CarsonDirector2025-09-304,115$3.05
$12.55kBuy
William H. CarsonDirector2025-09-024,115$2.09
$8.60kBuy
William H. CarsonDirector2025-07-304,115$2.43
$10.00kBuy
Michael OverdorfEVP CHIEF BUSINESS OFFICER2025-07-14853$2.61
$2.23kSell
Jennifer LewEVP CHIEF FINANCIAL OFFICER2025-07-141,117$2.58
$2.88kSell
Ted YednockEVP CHIEF INNOVATION OFFICER2025-07-141,116$2.58
$2.88kSell
William H. CarsonDirector2025-06-304,115$2.46
$10.12kBuy
Dean Richard ArtisEVP CHIEF SCIENTIFIC OFFICER2025-02-185,515$2.97
$16.38kSell
Jamie DananbergCHIEF MEDICAL OFFICER2025-02-185,521$2.96
$16.34kSell
Jennifer LewEVP CHIEF FINANCIAL OFFICER2025-02-186,912$2.92
$20.18kSell

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Net Insider Buy/Sell (L12M) Ownership

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ANNX Shareholders

What type of owners hold Annexon Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Fmr LLC14.28%15,695,226$48.66MInstitution
Bain Capital Life Sciences Investors LLC10.10%11,103,852$34.42MInsider
Blackrock Inc7.25%7,962,368$24.68MInstitution
Muneer A. Satter6.74%7,406,024$22.96MInsider
Bvf Inc6.37%7,000,000$21.70MInstitution
Redmile Group LLC5.73%6,300,644$19.53MInstitution
Vanguard Group Inc4.88%5,366,039$16.63MInstitution
Bain Capital Life Sciences Investors LLC4.78%5,249,069$16.27MInstitution
Bellevue Group Ag4.69%5,157,290$15.99MInstitution
Sio Capital Management LLC3.73%4,095,764$12.70MInstitution

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ANNX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ANNX79.73%20.27%Net BuyingNet Buying
CADL41.97%31.11%Net BuyingNet Buying
TNYA19.37%23.49%Net BuyingNet Selling
QSI31.75%49.28%Net SellingNet Selling
DMAC16.96%69.86%Net BuyingNet Buying

Annexon Stock Ownership FAQ

Who owns Annexon?

Annexon (NASDAQ: ANNX) is owned by 90.74% institutional shareholders, 23.07% Annexon insiders, and 0.00% retail investors. Bain Capital Life Sciences Investors LLC is the largest individual Annexon shareholder, owning 11.10M shares representing 10.10% of the company. Bain Capital Life Sciences Investors LLC's Annexon shares are currently valued at $34.42M.

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