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. CarsonDirector2025-12-014,115$4.47
$18.39kBuy
Jung ChoiDirector2025-12-0133,000$4.19
$138.27kBuy
Muneer A. SatterDirector2025-11-21422,613$4.28
$1.81MBuy
Muneer A. SatterDirector2025-11-20400,000$4.48
$1.79MBuy
Muneer A. SatterDirector2025-11-19500,000$3.94
$1.97MBuy
Muneer A. SatterDirector2025-11-18500,000$3.18
$1.59MBuy
Muneer A. SatterDirector2025-11-17500,000$2.99
$1.50MBuy
William H. CarsonDirector2025-10-304,115$3.17
$13.04kBuy
William H. CarsonDirector2025-09-304,115$3.05
$12.55kBuy
William H. CarsonDirector2025-09-024,115$2.09
$8.60kBuy

1 of 3

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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
Bain Capital Life Sciences Investors LLC9.28%11,103,852$45.08MInsider
Fmr LLC9.26%11,081,163$44.99MInstitution
Muneer A. Satter8.13%9,728,637$39.50MInsider
Blackrock Inc6.60%7,899,008$32.07MInstitution
Bvf Inc5.85%7,000,000$28.42MInstitution
Redmile Group LLC5.27%6,300,644$25.58MInstitution
Vanguard Group Inc4.88%5,835,112$23.69MInstitution
Bain Capital Life Sciences Investors LLC4.39%5,249,069$21.31MInstitution
Bellevue Group Ag4.31%5,157,290$20.94MInstitution
Morgan Stanley2.53%3,029,848$12.30MInstitution

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ANNX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ANNX78.53%21.47%Net BuyingNet Buying
LXRX21.62%78.38%Net Selling
MNPR18.47%81.53%Net SellingNet Selling
IVVD61.79%38.21%Net SellingNet Buying
NAGE18.41%81.59%Net BuyingNet Buying

Annexon Stock Ownership FAQ

Who owns Annexon?

Annexon (NASDAQ: ANNX) is owned by 84.75% institutional shareholders, 23.17% Annexon insiders, and 0.00% retail investors. Bain Capital Life Sciences Investors LLC is the largest individual Annexon shareholder, owning 11.10M shares representing 9.28% of the company. Bain Capital Life Sciences Investors LLC's Annexon shares are currently valued at $47.52M.

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