🕵️ Axsome Therapeutics, Inc. ($AXSM)
SEC insider & ownership activity, last 12 months · CIK 1579428 · every row links its SEC filing
Over the last 12 months insiders sold $146.1M with no open-market buying against it. Tabuteau Herriot sold $103.2M through a 10b5-1 trading plan in 17 lots (Oct–Aug). 1 planned sale is pending, the largest $9.6M (Herriot Tabuteau). No red-flag 8-Ks in the window.
🚨 12 signals active —
planned-vs-executed verdicts, pre-event flags, and cluster context live in the
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 8 sellers, $146.1M (39 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Tabuteau Herriot | 0 | – | 17 | $103.2M | Aug 6, 2026 |
| Mark Jacobson | 0 | – | 7 | $15.3M | Sep 3, 2026 |
| Pizzie Nick | 0 | – | 2 | $10.2M | Jun 9, 2026 |
| Coleman Mark | 0 | – | 5 | $8.2M | Jun 10, 2026 |
| Mark E. Saad | 0 | – | 2 | $6.2M | Dec 31, 2025 |
| Maizel Ari | 0 | – | 2 | $2.8M | Apr 22, 2026 |
| Mahony Susan | 0 | – | 2 | $145K | Jun 10, 2026 |
| Jeffs Roger | 0 | – | 2 | $142K | Jun 11, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Roderick WONG, M.D. | 6.0% | 13G | May 15, 2025 | filing ↗ | |
| BlackRock, Inc. | 5.3% | 13G | Jul 27, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Mark Jacobson | $2.1M | Sep 3, 2026 | filing ↗ |
| Herriot Tabuteau | $979K | Aug 6, 2026 | filing ↗ |
| Herriot Tabuteau | $9.6M | Aug 5, 2026 | filing ↗ |
| Herriot Tabuteau | $12.0M | Jul 1, 2026 | filing ↗ |
| Jeffs Roger | $71K | Jun 11, 2026 | filing ↗ |
| Mahony Susan | $74K | Jun 10, 2026 | filing ↗ |
| Jeffs Roger | $70K | Jun 10, 2026 | filing ↗ |
| Coleman Mark | $160K | Jun 10, 2026 | filing ↗ |
| Herriot Tabuteau | $12.2M | Jun 9, 2026 | filing ↗ |
| Pizzie Nick | $7.9M | Jun 9, 2026 | filing ↗ |
| Mahony Susan | $71K | Jun 9, 2026 | filing ↗ |
| Coleman Mark | $1.2M | Jun 2, 2026 | filing ↗ |
| Coleman Mark | $1.4M | Jun 1, 2026 | filing ↗ |
| Coleman Mark | $1.4M | May 29, 2026 | filing ↗ |
| Mark Jacobson | $52K | May 5, 2026 | filing ↗ |
| Mark Jacobson | $1.0M | May 4, 2026 | filing ↗ |
| Maizel Ari | $1.4M | Apr 22, 2026 | filing ↗ |
| Mark Jacobson | $5.8M | Feb 26, 2026 | filing ↗ |
| Coleman Mark | $4.0M | Feb 26, 2026 | filing ↗ |
| Herriot Tabuteau | $6.0M | Feb 2, 2026 | filing ↗ |
| Pizzie Nick | $2.3M | Jan 22, 2026 | filing ↗ |
| Maizel Ari | $1.4M | Jan 21, 2026 | filing ↗ |
| Herriot Tabuteau | $5.3M | Jan 7, 2026 | filing ↗ |
| Herriot Tabuteau | $5.1M | Jan 6, 2026 | filing ↗ |
| Herriot Tabuteau | $13.5M | Jan 5, 2026 | filing ↗ |
| Mark E. Saad | $6.2M | Dec 31, 2025 | filing ↗ |
| Herriot Tabuteau | $1.6M | Dec 4, 2025 | filing ↗ |
| Herriot Tabuteau | $3.0M | Dec 3, 2025 | filing ↗ |
| Herriot Tabuteau | $7.0M | Dec 2, 2025 | filing ↗ |
| Herriot Tabuteau | $3.0M | Nov 5, 2025 | filing ↗ |
| Herriot Tabuteau | $6.8M | Nov 4, 2025 | filing ↗ |
| Herriot Tabuteau | $12.4M | Nov 3, 2025 | filing ↗ |
| Herriot Tabuteau | $1.5M | Oct 8, 2025 | filing ↗ |
| Herriot Tabuteau | $1.6M | Oct 7, 2025 | filing ↗ |
| Herriot Tabuteau | $2.3M | Oct 6, 2025 | filing ↗ |
| Mark L. Jacobson | $1.2M | Sep 22, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Aug 10, 2026 | filing ↗ |
| Other events (8.01) | Aug 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 10, 2026 | filing ↗ |
| Other events (8.01) | Jul 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 15, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 5, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 5, 2026 | filing ↗ |
| Other events (8.01) | Jun 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 3, 2026 | filing ↗ |
| Earnings (2.02) | May 4, 2026 | filing ↗ |
| Other events (8.01) | May 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 4, 2026 | filing ↗ |
| Other events (8.01) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Other events (8.01) | Apr 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 1, 2026 | filing ↗ |
| Earnings (2.02) | Feb 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 23, 2026 | filing ↗ |
| Other events (8.01) | Feb 17, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 17, 2026 | filing ↗ |
| Earnings (2.02) | Jan 12, 2026 | filing ↗ |
| Other events (8.01) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Other events (8.01) | Dec 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 31, 2025 | filing ↗ |
| Earnings (2.02) | Nov 3, 2025 | filing ↗ |
| Other events (8.01) | Nov 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 3, 2025 | filing ↗ |