XT
DFTX

XTX Topco’s Definium Therapeutics DFTX Stock Holding History

XTX Topco’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
Q2 		$3.97M Buy
+84,393
New +$2.09M 0.05% 518
2026
Q1 		– Sell
-10,994
Closed -$147K – 4148
2025
Q4 		$147K Buy
+10,994
New +$136K ﹤0.01% 2513
2025
Q3 		– Sell
-32,402
Closed -$210K – 3003
2025
Q2 		$210K Buy
32,402
+2,858
+10% +$18.8K 0.01% 1668
2025
Q1 		$173K Sell
29,544
-6,595
-18% -$47.2K 0.01% 1736
2024
Q4 		$252K Sell
36,139
-23,083
-39% -$159K 0.02% 1358
2024
Q3 		$337K Buy
+59,222
New +$412K 0.02% 1108
2024
Q1 		– Sell
-23,935
Closed -$87.6K – 2142
2023
Q4 		$87.6K Buy
+23,935
New +$72.1K 0.02% 1141
2022
Q4 		– Sell
-20,831
Closed -$73K – 1356
2022
Q3 		$73K Buy
+20,831
New +$200K 0.02% 991
2022
Q1 		– Sell
-3,841
Closed -$79K – 851
2021
Q4 		$79K Buy
+3,841
New +$123K 0.04% 504

Other funds holding DFTX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $11.1B AUM 207.82% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

XTX Topco's DFTX Position: Q2 2026 in Review

XTX Topco opened a new position in Definium Therapeutics (DFTX) in Q2 2026: 84,393 shares worth $3.97M. The stake represents 0.05% of the portfolio and ranks #518 among its holdings. This is a return to the name: XTX Topco previously reported a position in DFTX as recently as Q4 2025.

XTX Topco first reported a position in DFTX in Q4 2021 and has held it in 9 quarters since. 361 funds tracked by Wall St. Rank hold DFTX as of Q2 2026.

  • XTX Topco held 84,393 shares of Definium Therapeutics worth $3.97M as of Q2 2026.
  • Definium Therapeutics was a new XTX Topco position in Q2 2026.
  • Definium Therapeutics made up 0.05% of XTX Topco's portfolio in Q2 2026, its #518 holding.
  • XTX Topco first reported a position in Definium Therapeutics in Q4 2021 and has held it in 9 quarters since.
  • 361 funds tracked by Wall St. Rank held Definium Therapeutics as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.