AXSM · NASDAQ · Biotechnology

Axsome Therapeutics

Developer of CNS medicines for depression, Alzheimer’s agitation, daytime sleepiness, and migraine.

$199.00
After-hours close−0.07 (−0.04%)
At close$199.07(−3.49%)

Breakdown13F · Form 4

Institutions 96.53%49.68M sharesInsiders 0.29%151.1K sharesOther 3.18%1.63M shares

Shares outstanding 51.46M · Float 43.56M · 84.6% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
BlackRock, Inc.3.10M6.03%13FAug 7, 2026
Vanguard Portfolio Management LLC1.98M3.85%13FAug 13, 2026
Vanguard Capital Management LLC1.97M3.82%13FAug 13, 2026
Invesco Ltd.1.67M3.25%13FAug 14, 2026
FMR LLC1.54M2.99%13FAug 13, 2026

Institutions13F, as of Jun 30, 2026

538 holders · 49.68M shares · 141 new positions · 299 increased · 162 reduced · 43 closed

HolderShares% outstandingChg q/qFiled
BlackRock, Inc.3.10M6.03%−809.1KAug 7, 2026
Vanguard Portfolio Management LLC1.98M3.85%−74.7KAug 13, 2026
Vanguard Capital Management LLC1.97M3.82%+27.3KAug 13, 2026
Invesco Ltd.1.67M3.25%+374.0KAug 14, 2026
FMR LLC1.54M2.99%−27.8KAug 13, 2026
Geode Capital Management, LLC967.2K1.88%−195.8KAug 12, 2026
Morgan Stanley804.1K1.56%+327.4KAug 13, 2026
State Street Corp785.7K1.53%−201.1KAug 7, 2026

Beneficial owners13D/G · 5% or more, as filed

No 13D/G filer at 5% or more on record.

InsidersForm 4

InsiderRoleShares% outstandingFiled
Roger Jeffsdirector58.4K0.11%Jun 11, 2026
Nick Pizzieofficer: Chief Financial Officer42.9K0.08%Jun 9, 2026
Mark Colemandirector30.4K0.06%Jun 10, 2026
Mark E. Saaddirector11.4K0.02%Jun 10, 2026
Herriot Tabuteaudirector, 10 percent owner, officer: Chief Executive Officer7.2K0.01%Aug 7, 2026
Susan Mahonydirector8290.00%Jun 10, 2026

1 ten-percent owner holds 7.34M shares by Form 4, outside the officers-and-directors figure above · 2 people have not refiled in the last 18 months (10.4K shares), so they are not in the figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 6, 2026
Herriot Tabuteaudirector, 10 percent owner, officer: Chief Executive Officer
Sale4,660$213.957,229
Aug 5, 2026
Herriot Tabuteaudirector, 10 percent owner, officer: Chief Executive Officer
Sale45,004$212.017,229
Jul 1, 2026
Herriot Tabuteaudirector, 10 percent owner, officer: Chief Executive Officer
Sale49,666$240.257,229
Jun 11, 2026
Roger Jeffsdirector
Sale286$249.1258,367
Jun 10, 2026
Roger Jeffsdirector
Sale286$246.1858,653
Jun 10, 2026
Mark Colemandirector
Sale643$249.0030,389
Jun 10, 2026
Susan Mahonydirector
Sale300$246.18829
Jun 9, 2026
Susan Mahonydirector
Sale300$237.211,129
Jun 9, 2026
Nick Pizzieofficer: Chief Financial Officer
Sale33,000$240.0942,867
Jun 9, 2026
Herriot Tabuteaudirector, 10 percent owner, officer: Chief Executive Officer
Sale49,670$241.017,229

CongressHouse and Senate disclosures

Not reported.