Annexon
ANNX · NASDAQ
$3.83−$0.18 (−4.49%)TodayMarket closed ·
Prev close $4.01
Who owns ANNX
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 59.2% of ANNX’s shares.
- Fidelity Management & Research Company LLC11.1%
- Redmile Group, LLC8.9%
- BlackRock Institutional Trust Company, N.A.7.3%
- State Street Investment Management (US)6.0%
- Next 6 largest institutions26.0%
- All other shareholders40.8%
| Holder | Shares | % of shares |
|---|---|---|
| Fidelity Management & Research Company LLC | 18.16M | 11.09% |
| Redmile Group, LLC | 14.55M | 8.88% |
| BlackRock Institutional Trust Company, N.A. | 11.98M | 7.31% |
| State Street Investment Management (US) | 9.82M | 6.00% |
| Alerce Investment Management, L.P. | 9.73M | 5.94% |
| BVF Partners L.P. | 8.70M | 5.31% |
| Woodline Partners LP | 6.93M | 4.23% |
| Vanguard Capital Management, LLC | 6.87M | 4.19% |
| MAK Capital One, LLC | 5.86M | 3.58% |
| Invus Public Equities Advisors, LLC | 4.46M | 2.72% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| State Street SPDR S&P Biotech ETF | 6.58M | 4.02% |
| Fidelity Select Biotechnology Portfolio | 6.17M | 3.77% |
| BB Biotech Fd | 5.16M | 3.15% |
| Vanguard Total Stock Market Index Fund | 4.97M | 3.03% |
| iShares Russell 2000 ETF | 4.04M | 2.47% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $3.47M (3 trades) of ANNX on the open market, with no sales.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Love Douglas | Buy | 26.07K | $99.83K |
| Blumenkranz Mark S. | Award | 175.00K | — |
| Cockroft Bettina M. | Award | 65.00K | — |
| Carson William H. | Award | 65.00K | — |
| Yednock Ted | Option exercise | 30.65K | — |
| Yednock Ted | Option exercise | 30.65K | $56.70K |
| Choi Jung | Award | 65.00K | — |
| Waddill William D. | Award | 65.00K | — |
| JONES WILLIAM A JR | Award | 65.00K | — |
| Satter Muneer A | Award | 65.00K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 32.01M
- Days to cover
- 8.90
- % of shares outstanding
- 19.54%
- Average daily volume
- 3.60M
- Change since last report
- −2.6%
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