Annexon, Inc.
ANNX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001528115
In the last 90 days, Annexon, Inc. insiders filed 1 open-market purchase and 0 sales; 216 institutions reported holding it in 13F filings for Q2 2026, worth $1.02B in total; no superinvestor holds it.
Holders of 5% or more of ANNX
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Annexon, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Redmile Group, LLC | 13G/A | 9.90%15.4M shares | – | Feb 17, 20261 filing | Feb 17, 2026 | SEC |
| Satter Muneer A | 13D/A | 7.20%10.4M shares | – | Nov 21, 20251 filing | Nov 21, 2025 | SEC |
| FMR LLC | 13G/A | 7.10%10.2M shares | −3.00 ppfrom 10.10% | Dec 6, 20244 filings | Feb 5, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
14 Schedule 13D and 13G filings on Annexon, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Mar 26, 20263:42 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −5.31 ppfrom 5.31%Below 5% | Mar 13, 2026 | SEC |
| Feb 17, 20264:15 PM ET | Redmile Group, LLCand 2 others | 13G/A | 9.90%15.4M shares | – | Dec 31, 2025 | SEC |
| Feb 5, 20261:16 PM ET | FMR LLCand 1 other | 13G/A | 7.10%10.2M shares | −3.00 ppfrom 10.10% | Dec 31, 2025 | SEC |
| Nov 21, 20257:27 PM ET | Satter Muneer A | 13D/A | 7.20%10.4M shares | – | Nov 19, 2025 | SEC |
| Nov 5, 202511:26 AM ET | FMR LLCand 1 other | 13G/A | 10.10%11.1M shares | −4.20 ppfrom 14.30% | Sep 30, 2025 | SEC |
| Oct 30, 20252:26 PM ET | Vanguard Group Inc | 13G | 5.31%5.84M shares | +0.41 ppfrom 4.90% | Sep 30, 2025 | SEC |
| Aug 14, 20251:14 PM ET | Logos Global Management LPand 4 others | 13G/A | 0.00%0 shares | −6.00 ppfrom 6.00%Below 5% | Jun 30, 2025 | SEC |
| Aug 6, 202511:51 AM ET | FMR LLCand 1 other | 13G/A | 14.30%15.7M shares | +1.20 ppfrom 13.10% | Jun 30, 2025 | SEC |
| May 15, 20253:48 PM ET | Point72 Asset Management, L.P.and 2 others | 13G/A | 0.10%95.4K shares | –Below 5% | Mar 31, 2025 | SEC |
| Apr 30, 202510:54 AM ET | Vanguard Group Inc | 13G/A | 4.90%5.38M shares | −0.30 ppfrom 5.20%Below 5% | Mar 31, 2025 | SEC |
| Apr 28, 20257:15 PM ET | Logos Global Management LPand 4 others | 13G | 6.00%6.60M shares | New | Apr 21, 2025 | SEC |
| Feb 14, 20257:55 AM ET | Bain Capital Life Sciences Fund, L.P.and 2 others | 13G/A | 4.90%5.25M shares | –Below 5% | Dec 31, 2024 | SEC |
| Jan 31, 202511:44 AM ET | Vanguard Group Inc | 13G | 5.20%5.55M shares | New | Dec 31, 2024 | SEC |
| Dec 6, 202411:26 AM ET | FMR LLCand 1 other | 13G/A | 13.10%13.9M shares | – | Nov 29, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Annexon, Inc. shares.
No Form 144 notices for Annexon, Inc. are on file.