AXSM · Insider Trading
Axsome Therapeutics, Inc
Every open-market purchase and sale reported by AXSM officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-03 | Mark L. Jacobson | Chief Operating Officer | MIXED | — | −$1.96M |
| 2026-08-07 | Herriot Tabuteau | Chief Executive Officer | MIXED | — | −$10.29M |
| 2026-07-01 | Herriot Tabuteau | Chief Executive Officer | MIXED | — | −$11.69M |
| 2026-06-11 | Roger Jeffs | Director | Sell | −572 | −$141.66K |
| 2026-06-10 | Susan Mahony | Director | MIXED | +829 | −$145.02K |
| 2026-06-10 | Mark Coleman | Director | MIXED | +786 | −$160.11K |
| 2026-06-10 | Mark E Saad | Director | M | +1,429 | — |
| 2026-06-10 | Roger Jeffs | Director | M | +1,429 | — |
| 2026-06-09 | Susan Mahony | Director | A | +1,721 deriv. | — |
| 2026-06-09 | Roger Jeffs | Director | A | +1,721 deriv. | — |
| 2026-06-09 | Mark Coleman | Director | A | +1,721 deriv. | — |
| 2026-06-09 | Mark E Saad | Director | A | +1,721 deriv. | — |
| 2026-06-09 | Herriot Tabuteau | Chief Executive Officer | MIXED | — | −$11.73M |
| 2026-06-09 | Nick Pizzie | Chief Financial Officer | MIXED | — | −$7.81M |
| 2026-06-02 | Mark Coleman | Director | Sell | −17,537 | −$4.02M |
| 2026-05-05 | Mark L. Jacobson | Chief Operating Officer | MIXED | — | −$1.02M |
| 2026-04-23 | Ari Maizel | Chief Commercial Officer | A | +7,224 deriv. | — |
| 2026-04-23 | Hunter R. Murdock | General Counsel | A | +7,224 deriv. | — |
| 2026-04-23 | Mark L. Jacobson | Chief Operating Officer | A | +8,669 deriv. | — |
| 2026-04-23 | Herriot Tabuteau | Chief Executive Officer | A | +24,081 deriv. | — |
| 2026-04-23 | Ari Maizel | Chief Commercial Officer | MIXED | — | −$837.67K |
| 2026-04-23 | Nick Pizzie | Chief Financial Officer | A | +8,188 deriv. | — |
| 2026-02-27 | Nick Pizzie | Chief Financial Officer | A | +18,570 deriv. | — |
| 2026-02-27 | Mark L. Jacobson | Chief Operating Officer | A | +19,663 deriv. | — |
| 2026-02-27 | Ari Maizel | Chief Commercial Officer | A | +16,385 deriv. | — |
| 2026-02-27 | Hunter R. Murdock | General Counsel | A | +16,385 deriv. | — |
| 2026-02-27 | Mark Coleman | Director | Sell | −25,000 | −$4.03M |
| 2026-02-27 | Mark L. Jacobson | Chief Operating Officer | MIXED | — | −$5.63M |
| 2026-02-27 | Herriot Tabuteau | Chief Executive Officer | A | +54,623 deriv. | — |
| 2026-02-25 | Mark Coleman | Director | M | +6,250 | +$30.94K |
| 2026-02-23 | Mark Coleman | Director | M | +12,485 | +$61.80K |
| 2026-02-10 | Mark Coleman | Director | M | +5,193 | +$41.65K |
| 2026-02-02 | Herriot Tabuteau | Chief Executive Officer | MIXED | — | −$5.76M |
| 2026-01-23 | Ari Maizel | Chief Commercial Officer | MIXED | — | −$852.83K |
| 2026-01-23 | Nick Pizzie | Chief Financial Officer | MIXED | — | −$2.21M |
| 2026-01-07 | Herriot Tabuteau | Chief Executive Officer | MIXED | — | −$22.76M |
| 2026-01-02 | Mark E Saad | Director | MIXED | — | −$6.00M |
| 2025-12-04 | Herriot Tabuteau | Chief Executive Officer | MIXED | — | −$11.01M |
| 2025-11-05 | Herriot Tabuteau | Chief Executive Officer | MIXED | — | −$20.50M |
| 2025-10-08 | Herriot Tabuteau | Chief Executive Officer | MIXED | — | −$5.05M |
| 2025-09-22 | Mark L. Jacobson | Chief Operating Officer | MIXED | — | −$1.13M |
| 2025-09-17 | Mark L. Jacobson | Chief Operating Officer | MIXED | −5,783 | −$5.04M |
| 2025-09-16 | Herriot Tabuteau | Chief Executive Officer | MIXED | — | −$6.86M |
| 2025-09-09 | Mark Coleman | Director | Buy | +1,575 | +$200.47K |
| 2025-09-05 | Mark E Saad | Director | MIXED | — | −$1.06M |
| 2025-09-02 | Roger Jeffs | Director | Sell | −13,464 | −$1.67M |
| 2025-08-29 | Roger Jeffs | Director | Sell | −60,000 | −$7.30M |
| 2025-08-26 | Roger Jeffs | Director | Sell | −36,694 | −$4.41M |
| 2025-06-23 | Hunter R. Murdock | General Counsel | MIXED | — | −$966.44K |
| 2025-06-18 | Hunter R. Murdock | General Counsel | MIXED | — | −$1.60M |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Herriot Tabuteau | Chief Executive Officer | 7,396,733 | $984.25M |
| Mark Coleman | Director | 434,888 | $57.87M |
| Roger Jeffs | Director | 105,565 | $14.05M |
| Nick Pizzie | Chief Financial Officer | 76,355 | $10.16M |
| Mark E Saad | Director | 11,731 | $1.56M |
| Mark L. Jacobson | Chief Operating Officer | 10,000 | $1.33M |
| Hunter R. Murdock | General Counsel | 7,500 | $997.99K |
| Ari Maizel | Chief Commercial Officer | 7,500 | $997.99K |
| Susan Mahony | Director | 829 | $110.31K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the AXSM quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.