Blackstone Inc
DFTX

Blackstone Inc’s Definium Therapeutics DFTX Stock Holding History

Blackstone Inc’s Portfolio DFTX Stock Details DFTX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$9.61M Sell
508,668
-1,551,137
-75% -$26.3M 0.04% 84
2025
Q4 		$27.6M Sell
2,059,805
-716,756
-26% -$8.87M 0.11% 66
2025
Q3 		$32.7M Sell
2,776,561
-810,918
-23% -$7.56M 0.13% 59
2025
Q2 		$23.3M Hold
3,587,479
– – 0.1% 63
2025
Q1 		$21M Hold
3,587,479
– – 0.09% 58
2024
Q4 		$25M Sell
3,587,479
-325,000
-8% -$2.24M 0.11% 56
2024
Q3 		$22.3M Buy
3,912,479
+2,014,154
+106% +$14M 0.1% 60
2024
Q2 		$13.7M Buy
1,898,325
+648,450
+52% +$5.67M 0.06% 71
2024
Q1 		$11.7M Buy
+1,249,875
New +$7.13M 0.05% 80

Other funds holding DFTX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
DTC
Deep Track Capital Greenwich, Connecticut $6.12B AUM 144% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
OCA
Octagon Capital Advisors New York $904M AUM 737.04% 1-Year Est. Return
CC
Commodore Capital New York $1.73B AUM 298.96% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Blackstone Inc's DFTX Position: Q1 2026 in Review

Blackstone Inc reduced its Definium Therapeutics (DFTX) stake by 75% in Q1 2026, selling an estimated $26.3M and leaving 508,668 shares worth $9.61M. The position accounts for 0.04% of the portfolio, ranked #84.

Blackstone Inc first reported a position in DFTX in Q1 2024 and has held it in 9 quarters since. The position peaked at $32.7M in Q3 2025. 247 funds tracked by Wall St. Rank hold DFTX as of Q1 2026.

  • Blackstone Inc held 508,668 shares of Definium Therapeutics worth $9.61M as of Q1 2026.
  • Blackstone Inc sold 1,551,137 Definium Therapeutics shares in Q1 2026, an estimated $26.3M.
  • Definium Therapeutics made up 0.04% of Blackstone Inc's portfolio in Q1 2026, its #84 holding.
  • Blackstone Inc first reported a position in Definium Therapeutics in Q1 2024 and has held it in 9 quarters since.
  • Blackstone Inc's Definium Therapeutics position peaked at $32.7M in Q3 2025.
  • 247 funds tracked by Wall St. Rank held Definium Therapeutics as of Q1 2026.

Based on Blackstone Inc's 13F filing for Q1 2026, filed 15 May 2026.