🕵️ Annexon, Inc. ($ANNX)
SEC insider & ownership activity, last 12 months · CIK 1528115 · every row links its SEC filing
Over the last 12 months insiders sold $313K against $12.3M of open-market buying. Muneer A. Satter bought $12.0M (Nov–May). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
3 buyers, $12.3M (16 lots) · 5 sellers, $313K (10 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Muneer A. Satter | 6 | $12.0M | 0 | – | May 28, 2026 |
| William H. Carson | 9 | $224K | 0 | – | May 11, 2026 |
| Choi Jung | 1 | $138K | 0 | – | Dec 1, 2025 |
| Yednock Ted | 0 | – | 2 | $70K | Mar 2, 2026 |
| Lew Jennifer | 0 | – | 2 | $70K | Mar 2, 2026 |
| Artis Dean Richard | 0 | – | 2 | $59K | Mar 2, 2026 |
| Dananberg Jamie | 0 | – | 2 | $59K | Mar 2, 2026 |
| Overdorf Michael | 0 | – | 2 | $55K | Mar 2, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| FMR LLC | 11.9% | 13G | Jul 8, 2026 | filing ↗ | |
| Abigail P. Johnson | 11.9% | 13G | Jul 8, 2026 | filing ↗ | |
| Redmile Group, LLC | 9.9% | 13G | Jul 8, 2026 | filing ↗ | |
| Jeremy C. Green | 9.9% | 13G | Jul 8, 2026 | filing ↗ | |
| Blackrock, Inc. | 8.0% | 13G | Jul 27, 2026 | filing ↗ | |
| Muneer A. Satter | 7.2% | 13D | Nov 19, 2025 | filing ↗ | |
| Redco II Offshore SPV LLC | 5.5% | 13G | Jul 8, 2026 | filing ↗ | |
| BVF Partners L P/IL | 5.4% | 13G | May 15, 2026 | filing ↗ | |
| BVF INC/IL | 5.4% | 13G | May 15, 2026 | filing ↗ | |
| Mark N. Lampert | 5.4% | 13G | May 15, 2026 | filing ↗ | |
| BVF GP Holdings LLC | 5.0% | 13G | May 15, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Thomas G. Wiggans | $13K | Jul 15, 2026 | filing ↗ |
| Thomas G. Wiggans | $6K | Jul 14, 2026 | filing ↗ |
| Yednock Ted | $30K | Mar 2, 2026 | filing ↗ |
| Artis Dean Richard | $32K | Mar 2, 2026 | filing ↗ |
| Overdorf Michael | $24K | Mar 2, 2026 | filing ↗ |
| Dananberg Jamie | $32K | Mar 2, 2026 | filing ↗ |
| Lew Jennifer | $30K | Mar 2, 2026 | filing ↗ |
| Lew Jennifer | $40K | Feb 18, 2026 | filing ↗ |
| Artis Dean Richard | $27K | Feb 18, 2026 | filing ↗ |
| Yednock Ted | $40K | Feb 18, 2026 | filing ↗ |
| Overdorf Michael | $32K | Feb 18, 2026 | filing ↗ |
| Dananberg Jamie | $27K | Feb 18, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | Jun 11, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Earnings (2.02) | Mar 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 30, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 12, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 14, 2026 | filing ↗ |
| Other events (8.01) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Material agreement (1.01) | Nov 12, 2025 | filing ↗ |
| Other events (8.01) | Nov 12, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 12, 2025 | filing ↗ |
| Earnings (2.02) | Nov 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 10, 2025 | filing ↗ |
| Earnings (2.02) | Aug 14, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 14, 2025 | filing ↗ |