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Annexon, Inc. (ANNX) Institutional Ownership & Insider Trading

216 institutions reported holding Annexon, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 24 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

ANNXAnnexon, Inc.Follow ANNX — free
Biotechnology · Healthcare
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Price chart with a free account
Market cap
766.7M
P/E TTM
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Dividend yield
0.0%
52-week
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Next earnings
16 Nov, in 23 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

216 institutions held 87.2% of the shares. Across filers that reported both quarters, shares held changed +14.4%.

Increased+76New+26Decreased-73Closed-23

Largest moves, shares (millions)

FMR+8.9MWoodline Partners+4.6MGoldman Sachs Group+3.7MBank of America-3.6MRedmile Group-2.7MNuveen-1.5M

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters
-2.6Sep 24+0.7Dec 24-2.6Mar 25-0.3Jun 25+1.7Sep 25+34.9Dec 25+18.3Mar 26+22.5Jun 26
QuarterHoldersShares held, MChangeIncreasedNewDecreasedClosed
Jun 26216178+14.4%76267323
Mar 26217156+14.2%79564815
Dec 25165137+34.6%65382914
Sep 25142101+1.7%45313316
Jun 2512699-0.3%48163236
Mar 2514599-2.6%50233727
Dec 24151112+0.6%59223516
Sep 24141110-2.5%52183918

Annexon, Inc. — questions

Who owns Annexon, Inc. stock?
216 institutions reported Annexon, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: FMR LLC (9.6%), BlackRock, Inc. (6.6%), Redmile Group, LLC (5.8%).
Are Annexon, Inc. insiders buying or selling?
24 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Annexon, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.