Axsome Therapeutics's top three insider shareholders as of September 29, 2026 are Mark Coleman (Director, 403.86K shares), Roger Jeffs (Director, 58.37K shares), Nick Pizzie (Chief Financial Officer, 42.87K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Roger Jeffs | Director | 58,367 | 0 | 58,367 | 38.6% | 11 Jun, 2026 |
| 2 | Nick Pizzie | Chief Financial Officer | 42,867 | 0 | 42,867 | 28.4% | 09 Jun, 2026 |
| 3 | Mark Coleman | Director | 30,389 | 0 | 30,389 | 20.1% | 10 Jun, 2026 |
| 4 | Mark E Saad | Director | 11,431 | 0 | 11,431 | 7.6% | 10 Jun, 2026 |
| 5 | Herriot Tabuteau | Chief Executive Officer | 7,229 | 0 | 7,229 | 4.8% | 07 Aug, 2026 |
| 6 | Susan Mahony | Director | 829 | 0 | 829 | 0.5% | 10 Jun, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 03 Sep, 2026 | Mark L. Jacobson | Chief Operating Officer | Acquired M | 10,000 | $12.95 | $129.50K | 10,000 | Direct |
| 03 Sep, 2026 | Mark L. Jacobson | Chief Operating Officer | Disposed S | 10,000 | $208.65 | $2.09Mn | 0 | Direct |
| 03 Sep, 2026 | Mark L. Jacobson | Chief Operating Officer | Disposed M | 10,000 | $0.00 | $0 | 104,954 | Direct |
| 05 Aug, 2026 | Herriot Tabuteau | Chief Executive Officer | Acquired M | 45,004 | $4.95 | $222.77K | 52,233 | Direct |
| 05 Aug, 2026 | Herriot Tabuteau | Chief Executive Officer | Disposed S | 45,004 | $212.01 | $9.54Mn | 7,229 | Direct |
| 06 Aug, 2026 | Herriot Tabuteau | Chief Executive Officer | Acquired M | 4,660 | $4.95 | $23.07K | 11,889 | Direct |
| 06 Aug, 2026 | Herriot Tabuteau | Chief Executive Officer | Disposed S | 4,660 | $213.95 | $997.01K | 7,229 | Direct |
| 05 Aug, 2026 | Herriot Tabuteau | Chief Executive Officer | Disposed M | 45,004 | $0.00 | $0 | 4,660 | Direct |
| 06 Aug, 2026 | Herriot Tabuteau | Chief Executive Officer | Disposed M | 4,660 | $0.00 | $0 | 0 | Direct |
| 01 Jul, 2026 | Herriot Tabuteau | Chief Executive Officer | Acquired M | 49,666 | $4.95 | $245.85K | 56,895 | Direct |
| 01 Jul, 2026 | Herriot Tabuteau | Chief Executive Officer | Disposed S | 49,666 | $240.25 | $11.93Mn | 7,229 | Direct |
| 01 Jul, 2026 | Herriot Tabuteau | Chief Executive Officer | Disposed M | 49,666 | $0.00 | $0 | 49,664 | Direct |
| 10 Jun, 2026 | Roger Jeffs | Director | Disposed S | 286 | $246.18 | $70.41K | 58,653 | Direct |
| 11 Jun, 2026 | Roger Jeffs | Director | Disposed S | 286 | $249.12 | $71.25K | 58,367 | Direct |
| 08 Jun, 2026 | Susan Mahony | Director | Acquired M | 1,429 | — | — | 1,429 | Direct |
| 08 Jun, 2026 | Roger Jeffs | Director | Acquired M | 1,429 | — | — | 58,939 | Direct |
| 08 Jun, 2026 | Mark E Saad | Director | Acquired M | 1,429 | — | — | 11,431 | Direct |
| 08 Jun, 2026 | Mark Coleman | Director | Acquired M | 1,429 | — | — | 31,032 | Direct |
| 08 Jun, 2026 | Roger Jeffs | Director | Disposed M | 1,429 | $0.00 | $0 | 0 | Direct |
| 09 Jun, 2026 | Susan Mahony | Director | Disposed S | 300 | $237.21 | $71.16K | 1,129 | Direct |