BetaInsiders sold $134M in the past 12 months.100% was sold under disclosed trading plans. The largest seller, Herriot Tabuteau (Chief Executive Officer, Director), sold $97.8M. 97% of these sales were shares from exercising options.Share-of-stake figures for this company are being verified and will be added when that check is finished. Why
Routine activity: 100% of sales were under disclosed plans, and no insider sold more than 1% of vested holdings.
A share of stake is shown for 0 of the 8 officers and directors who sold. 9 are left out Disclosed company stock is not an insider's whole wealth.i
Left out: Herriot Tabuteau, Mark Coleman, Roger Jeffs, Nick Pizzie, Mark Saad, Mark Jacobson, Hunter Murdock, Susan Mahony and Ari Maizel (share of stake is being verified).
Officers and directors, past 12 months. Their share of stake is being verified and is not shown yet; amounts and trading plans are below.
Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.
No officer or director trades were reported for the past 30 days. The most recent before that:
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Mark Jacobson Chief Operating Officer | 10,000 | $208.65 | n/a | n/a | Sep 3, 2026 | Sep 3, 2026 |
Yes. Herriot Tabuteau sold 565K shares ($97.8M) in the past 12 months, all of it under a trading plan disclosed in the filings.
Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 100% of sales by value ran under 10b5-1 trading plans disclosed in the filings. A trading plan schedules sales in advance.
No. Officers and directors reported no purchases in the past 12 months.
| Who sold | Amount | % of holdings | Trading plan |
|---|---|---|---|
| Herriot Tabuteau Chief Executive Officer, Director | $97.8M 565K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Nick Pizzie Chief Financial Officer | $10.2M 45K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Mark Jacobson Chief Operating Officer | $8.9M 50K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Mark Coleman Director | $8.2M 43K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Mark Saad Director | $6.2M 38K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Ari Maizel Chief Commercial Officer | $2.8M 15K shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Susan Mahony Director | $145K 600 shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
| Roger Jeffs Director | $142K 572 shares | Not confirmedshare of stake is being verified. Why | Disclosed plan |
Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.
| Insider | Held Oct 13, 2025 | Sold | Held Oct 13, 2026 | Still held | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Herriot Tabuteau!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Herriot Tabuteau are complete. Chief Executive Officer, Director | n/a | −565K | n/a | n/a | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Vesting, gifts, unvested awards and holding lines for Herriot TabuteauHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Herriot Tabuteau are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) Stock options (not counted as shares):
Estimate: options held × ($208.65 − strike price), using the most recent insider trade price on Form 4 (Sep 3, 2026), not a market close. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Mark Coleman!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Mark Coleman are complete. Director | n/a | −43K | n/a | n/a | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Vesting, gifts, unvested awards and holding lines for Mark ColemanHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Mark Coleman are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) Stock options (not counted as shares):
Estimate: options held × ($208.65 − strike price), using the most recent insider trade price on Form 4 (Sep 3, 2026), not a market close. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Roger Jeffs!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Roger Jeffs are complete. Director | n/a | −572 | n/a | n/a | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Vesting, gifts, unvested awards and holding lines for Roger JeffsHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Roger Jeffs are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) Stock options (not counted as shares):
Estimate: options held × ($208.65 − strike price), using the most recent insider trade price on Form 4 (Sep 3, 2026), not a market close. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Nick Pizzie!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Nick Pizzie are complete. Chief Financial Officer | n/a | −45K | n/a | n/a | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Vesting, gifts, unvested awards and holding lines for Nick PizzieHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Nick Pizzie are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) Stock options (not counted as shares):
Estimate: options held × ($208.65 − strike price), using the most recent insider trade price on Form 4 (Sep 3, 2026), not a market close. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Mark Saad!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Mark Saad are complete. Director | n/a | −38K | n/a | n/a | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Vesting, gifts, unvested awards and holding lines for Mark SaadHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Mark Saad are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) Stock options (not counted as shares):
Estimate: options held × ($208.65 − strike price), using the most recent insider trade price on Form 4 (Sep 3, 2026), not a market close. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Mark Jacobson!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Mark Jacobson are complete. Chief Operating Officer | n/a | −50K | n/a | n/a | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Vesting, gifts, unvested awards and holding lines for Mark JacobsonHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Mark Jacobson are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) Stock options (not counted as shares):
Estimate: options held × ($208.65 − strike price), using the most recent insider trade price on Form 4 (Sep 3, 2026), not a market close. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Hunter Murdock!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Hunter Murdock are complete. General Counsel | n/a | 0 | n/a | n/a | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Vesting, gifts, unvested awards and holding lines for Hunter MurdockHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Hunter Murdock are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) Stock options (not counted as shares):
Estimate: options held × ($208.65 − strike price), using the most recent insider trade price on Form 4 (Sep 3, 2026), not a market close. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Susan Mahony!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Susan Mahony are complete. Director | n/a | −600 | n/a | n/a | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Vesting, gifts, unvested awards and holding lines for Susan MahonyHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Susan Mahony are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) Stock options (not counted as shares):
Estimate: options held × ($208.65 − strike price), using the most recent insider trade price on Form 4 (Sep 3, 2026), not a market close. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Ari Maizel!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Ari Maizel are complete. Chief Commercial Officer | n/a | −15K | n/a | n/a | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Vesting, gifts, unvested awards and holding lines for Ari MaizelHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Ari Maizel are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) Stock options (not counted as shares):
Estimate: options held × ($208.65 − strike price), using the most recent insider trade price on Form 4 (Sep 3, 2026), not a market close. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Holdings and share of stake for Axsome Therapeutics, Inc. are being verified, so no balances, unit counts or percentages are shown. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings.
Officer and director open-market sales: $134M across 756,793 shares. Plan status and stated purpose are separate questions, and a sale can have both.
$447K of sales (0.3%) cite tax obligations in their footnotes, $447K of them also under a plan. Example: Roger Jeffs, Jun 11, 2026
| Seller | Shares sold | Proceeds | Under a disclosed plan | Share of total | Sales dates |
|---|---|---|---|---|---|
| Herriot Tabuteau Chief Executive Officer, Director | 565K | $97.8M | 100% | 73% | Nov 3, 2025 to Aug 6, 2026 |
| Nick Pizzie Chief Financial Officer | 45K | $10.2M | 100% | 8% | Jan 22, 2026 to Jun 9, 2026 |
| Mark Jacobson Chief Operating Officer | 50K | $8.9M | 100% | 7% | Feb 26, 2026 to Sep 3, 2026 |
| Mark Coleman Director | 43K | $8.2M | 100% | 6% | Feb 26, 2026 to Jun 10, 2026 |
| Mark Saad Director | 38K | $6.2M | 100% | 5% | Dec 31, 2025 to Dec 31, 2025 |
| Ari Maizel Chief Commercial Officer | 15K | $2.8M | 100% | 2% | Jan 21, 2026 to Apr 22, 2026 |
| Susan Mahony Director | 600 | $145K | 100% | 0.1% | Jun 9, 2026 to Jun 10, 2026 |
| Roger Jeffs Director | 572 | $142K | 100% | 0.1% | Jun 10, 2026 to Jun 11, 2026 |
| Month | Sale proceeds | Disclosed plan | To cover taxes | No plan disclosed |
|---|---|---|---|---|
| Oct 2025 | $0 | $0 | $0 | $0 |
| Nov 2025 | $21.8M | $21.8M | $0 | $0 |
| Dec 2025 | $17.9M | $17.9M | $0 | $0 |
| Jan 2026 | $27.5M | $27.5M | $0 | $0 |
| Feb 2026 | $15.8M | $15.8M | $0 | $0 |
| Mar 2026 | $0 | $0 | $0 | $0 |
| Apr 2026 | $1.4M | $1.4M | $0 | $0 |
| May 2026 | $2.5M | $2.5M | $0 | $0 |
| Jun 2026 | $23.0M | $23.0M | $0 | $0 |
| Jul 2026 | $11.9M | $11.9M | $0 | $0 |
| Aug 2026 | $10.5M | $10.5M | $0 | $0 |
| Sep 2026 | $2.1M | $2.1M | $0 | $0 |
| Oct 2026 | $0 | $0 | $0 | $0 |
More than usual: about 7x the 5-year average. 8 insiders sold; the average is 2 a year.
| 12 months ending | Shares sold | Insiders who sold | Proceeds |
|---|---|---|---|
| Oct 13, 2026 Latest 12 months | 757K | 8 | $134M |
| Oct 13, 2025 1 year earlier | 411K | 7 | $47.4M |
| Oct 13, 2024 2 years earlier | 134K | 4 | $10.6M |
| Oct 14, 2023 3 years earlier | 30K | 1 | $2.2M |
| Oct 14, 2022 4 years earlier | 0 | 0 | $0 |
| Oct 14, 2021 5 years earlier | 0 | 0 | $0 |
Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.
Holdings and share of stake are being verified. Balances, unit counts and every share-of-stake figure for Axsome Therapeutics, Inc. are held back until that check is finished. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings and are complete.
External context: we only cite outside events when a documented connection exists. None is shown for this period.
All 211 Forms 3, 4 and 5 on record for Axsome Therapeutics, Inc. (SEC CIK 1579428), filed from Nov 19, 2015 to Sep 3, 2026; 39 of them were filed in the 12 months this page covers, retrieved from SEC EDGAR on Oct 13, 2026. Prices are the ones reported in each filing, often weighted averages.
Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.
Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".
| Name | Last filed | Last reported balance |
|---|---|---|
| David Marek | Mar 19, 2020 | No balance on record |
| Myrtle Potter | Jun 10, 2019 | No balance on record |
| John Golubieski | Aug 8, 2017 | No balance on record |
| Constance Ames | Mar 17, 2017 | 4,358 shares, last reported balance as of Nov 24, 2015 |
| Randall Kaye | Dec 24, 2015 | 11,044 shares, last reported balance as of Dec 23, 2015 |
Spotted something wrong on this page? Report an error. We check every report against the SEC filing and list what we fix in the corrections log.