Group One Trading
DFTX

Group One Trading’s Definium Therapeutics DFTX Stock Holding History

Group One Trading’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 		$3.25M Sell
172,000
-205,000
-54% -$3.48M 0.01% 1646
2025
Q4 		$5.05M Buy
377,000
+62,200
+20% +$770K 0.01% 1472
2025
Q3 		$3.71M Buy
314,800
+18,200
+6% +$170K 0.01% 1757
2025
Q2 		$1.92M Sell
296,600
-249,600
-46% -$1.64M ﹤0.01% 2176
2025
Q1 		$3.2M Sell
546,200
-886,200
-62% -$6.35M 0.01% 1429
2024
Q4 		$9.97M Buy
1,432,400
+1,186,900
+483% +$8.17M 0.02% 700
2024
Q3 		$1.4M Sell
245,500
-33,800
-12% -$235K ﹤0.01% 2018
2024
Q2 		$2.01M Buy
279,300
+14,400
+5% +$126K 0.01% 1451
2024
Q1 		$2.49M Sell
264,900
-133,500
-34% -$761K 0.01% 1330
2023
Q4 		$1.46M Buy
398,400
+10,900
+3% +$32.8K ﹤0.01% 2124
2023
Q3 		$1.21M Buy
387,500
+17,000
+5% +$69.9K ﹤0.01% 2076
2023
Q2 		$1.32M Sell
370,500
-228,800
-38% -$789K ﹤0.01% 2087
2023
Q1 		$1.9M Sell
599,300
-734,300
-55% -$2.44M 0.01% 1577
2022
Q4 		$2.93M Sell
1,333,600
-377,800
-22% -$1.05M 0.01% 1509
2022
Q3 		$5.99M Buy
1,711,400
+1,659,180
+3,177% +$15.9M 0.01% 1034
2022
Q2 		$501K Sell
52,220
-37,900
-42% -$480K ﹤0.01% 3425
2022
Q1 		$1.5M Sell
90,120
-19,240
-18% -$334K ﹤0.01% 2686
2021
Q4 		$2.26M Buy
109,360
+20,627
+23% +$658K ﹤0.01% 2462
2021
Q3 		$3.1M Sell
88,733
-13,647
-13% -$590K ﹤0.01% 2202
2021
Q2 		$5.3M Buy
+102,380
New +$5.37M 0.01% 1635

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

Group One Trading's DFTX Position: Q1 2026 in Review

Group One Trading opened a new position in Definium Therapeutics (DFTX) in Q1 2026: 87,832 shares worth $1.66M. The stake represents ﹤0.01% of the portfolio and ranks #2238 among its holdings. This is a return to the name: Group One Trading previously reported a position in DFTX as recently as Q2 2024.

Group One Trading first reported a position in DFTX in Q2 2021 and has held it in 12 quarters since. 247 funds tracked by Wall St. Rank hold DFTX as of Q1 2026.

  • Group One Trading held 87,832 shares of Definium Therapeutics worth $1.66M as of Q1 2026.
  • Definium Therapeutics was a new Group One Trading position in Q1 2026.
  • Definium Therapeutics made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #2238 holding.
  • Group One Trading first reported a position in Definium Therapeutics in Q2 2021 and has held it in 12 quarters since.
  • 247 funds tracked by Wall St. Rank held Definium Therapeutics as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.