Definium Therapeutics, Inc. (DFTX) Stock

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7 of the hedge funds AlphaScala tracks reported DFTX in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Citadel's at $79.43M. Company insiders reported 0 open-market buys and 6 sales on SEC Form 4 in the 90 days to Oct 21, 2026.

Which hedge funds own DFTX?

From 13F filings
FundShares HeldPosition ValueChange vs prior Q
Citadel
Ken Griffin
1.69M$79.43M+27%
Marshall Wace1.30M$61.10M+8%
Blackstone562K$26.42M+10%
Point72
Steve Cohen
484K$22.77M+176%
Duquesne Family Office
Stanley Druckenmiller
357K$16.77MNEW
D.E. Shaw
David Shaw
315K$14.84M+16%
Millennium Management
Israel Englander
266K$12.52M-69%

13F holdings as of Jun 30, 2026

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Are Definium Therapeutics, Inc. insiders buying or selling?

SEC Form 4 filings
90 days to Oct 21, 2026
Buys
0
Sells
6
Net $
-$3.0M
Unique insiders
5
DateInsiderRoleTypeSharesValue
Sep 25, 26Roberts BrandiChief Financial OfficerSELL3.4K$123K
Sep 25, 26Sullivan MarkChief Legal OfficerSELL14.1K$514K
Sep 25, 26Wiley Matthew T.Chief Commercial OfficerSELL3.1K$113K
Sep 25, 26Barrow RobertChief Executive OfficerSELL31.6K$1.2M
Sep 25, 26Karlin DanielChief Medical OfficerSELL10.9K$397K
Sep 3, 26Barrow RobertChief Executive OfficerSELL19.0K$722K

SEC Form 4 filings as of Oct 21, 2026

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What does Definium Therapeutics, Inc. do?

Definium Therapeutics, Inc. is a clinical-stage biopharmaceutical company headquartered in New York, specializing in the development of psychedelic-derived therapeutics for psychiatric and neurological disorders. Formerly known as MindMed, it focuses on creating scientifically rigorous treatments that target root causes, such as generalized anxiety disorder (GAD), major depressive disorder (MDD), and autism spectrum disorder (ASD), aiming for long-term remission over symptom management. The company's lead candidate, DT120 orally disintegrating tablet (ODT), a proprietary lysergide (LSD) D-tartrate formulation, has FDA Breakthrough Therapy Designation for GAD and is advancing through multiple Phase 3 trials, with topline data anticipated in 2026. Additional pipeline assets include DT402, the R-enantiomer of MDMA, under investigation for ASD to improve social communication via serotonergic mechanisms. Operating in the biotechnology sector of healthcare, Definium Therapeutics employs 74 people and drives innovation in psychoplastogenic drug development to address the mental health crisis. Founded around 2019, it exemplifies precision science applied to psychedelics for scalable healing.

CEO
Mr. Robert Barrow
Employees
105
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