Annexon (ANNX)
Develops C1q-targeted therapies for complement-mediated diseases of the body, eye, and brain.
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13F · 13D/G · Form 4
| Institutions | ≈ 174.19% | 356.13M shares | |
|---|---|---|---|
| 228 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 6.05% | 12.36M shares | |
| 9 holders · as of Jun 15, 2026 | |||
| Adds to | 180.24% | ||
204.44M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
Two share counts disagree (204.44M in the company's Sep 23, 2026 report, 163.84M elsewhere); stakes use the report.
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 180.24%; nothing is left for Other.
This company has 2 share classes; every stake here is a share of the whole company.
13F, as of Jun 30, 2026
228 holders · 178.07M shares · 32 new positions · 114 increased · 79 reduced · 30 closed
| Holder | Shares | % of company | Chg q/q | Filed |
|---|---|---|---|---|
| FMR LLC | 19.52M | 9.55% | +8.88M | Aug 13, 2026 |
| BlackRock, Inc. | 13.54M | 6.62% | +2.60M | Aug 7, 2026 |
| Redmile Group, LLC | 11.87M | 5.81% | −2.68M | Aug 14, 2026 |
| State Street Corp | 9.82M | 4.81% | +2.91M | Aug 7, 2026 |
| BVF Inc/IL | 8.70M | 4.25% | 0 | Aug 14, 2026 |
| Woodline Partners LP | 6.93M | 3.39% | +4.59M | Aug 14, 2026 |
| Vanguard Capital Management LLC | 6.87M | 3.36% | +914.4K | Aug 13, 2026 |
| Mak Capital One LLC | 5.86M | 2.87% | +1.14M | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Logos GP LLCincl. Logos Global Management LP, Logos Global Management GP LLC +2 more | 11.00% | 2.90M | 13G/A | Nov 14, 2024 |
| Redmile Group, LLC | 9.90% | 15.43M | 13G | Feb 17, 2026 |
| Satter Muneer A | 7.20% | 10.44M | 13D | Nov 21, 2025 |
| FMR LLC | 7.10% | 10.22M | 13G | Feb 5, 2026 |
| BlackRock, Inc. | 6.10% | 8.87M | 13G | Jan 21, 2026 |
| State Street Corporation | 6.00% | 9.82M | 13G | Aug 7, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| May 28, 2026 | Muneer A. Satterdirector | Purchase | 613,497 | $5.41 | 10,342,134 |
| May 11, 2026 | William H. Carsondirector | Purchase | 8,000 | $5.78 | 78,405 |
| Apr 10, 2026 | William H. Carsondirector | Purchase | 8,000 | $6.20 | 70,405 |
| Mar 10, 2026 | William H. Carsondirector | Purchase | 8,000 | $5.67 | 62,405 |
| Mar 2, 2026 | Jennifer Lewofficer: EVP & CHIEF FINANCIAL OFFICER | Sale | 5,565 | $5.42 | 170,700 |
| Mar 2, 2026 | Dean Richard Artisofficer: EVP & CHIEF SCIENTIFIC OFFICER | Sale | 5,894 | $5.43 | 180,093 |
| Mar 2, 2026 | Ted Yednockofficer: EVP & CHIEF INNOVATION OFFICER | Sale | 5,566 | $5.42 | 154,161 |
| Mar 2, 2026 | Michael Overdorfofficer: EVP & CHIEF BUSINESS OFFICER | Sale | 4,339 | $5.42 | 182,625 |
| Mar 2, 2026 | Jamie Dananbergofficer: CHIEF MEDICAL OFFICER | Sale | 5,820 | $5.43 | 123,582 |
| Feb 18, 2026 | Michael Overdorfofficer: EVP & CHIEF BUSINESS OFFICER | Sale | 6,225 | $5.10 | 124,464 |
House and Senate disclosures
Not reported.