Fidelity Investments
DFTX

Fidelity Investments’s Definium Therapeutics DFTX Stock Holding History

Fidelity Investments’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 		$34.2M Buy
1,809,610
+1,647,557
+1,017% +$28M ﹤0.01% 1570
2025
Q4 		$2.17M Buy
162,053
+146,495
+942% +$1.81M ﹤0.01% 2588
2025
Q3 		$183K Buy
15,558
+1,771
+13% +$16.5K ﹤0.01% 3386
2025
Q2 		$89.5K Sell
13,787
-625
-4% -$4.11K ﹤0.01% 3656
2025
Q1 		$84.3K Sell
14,412
-10,497
-42% -$75.2K ﹤0.01% 3631
2024
Q4 		$173K Buy
24,909
+12,767
+105% +$87.8K ﹤0.01% 3326
2024
Q3 		$69.1K Buy
12,142
+414
+4% +$2.88K ﹤0.01% 3638
2024
Q2 		$84.6K Sell
11,728
-12,849
-52% -$112K ﹤0.01% 3372
2024
Q1 		$231K Buy
24,577
+770
+3% +$4.39K ﹤0.01% 2980
2023
Q4 		$87.1K Buy
23,807
+6,551
+38% +$19.7K ﹤0.01% 3271
2023
Q3 		$54K Buy
17,256
+4,928
+40% +$20.3K ﹤0.01% 3338
2023
Q2 		$44K Buy
12,328
+12,180
+8,230% +$42K ﹤0.01% 3490
2023
Q1 		$469 Buy
148
+68
+85% +$226 ﹤0.01% 4805
2022
Q4 		$176 Buy
80
+67
+515% +$186 ﹤0.01% 4839
2022
Q3 		$0 Sell
13
-793
-98% -$7.61K ﹤0.01% 5211
2022
Q2 		$8K Sell
806
-62
-7% -$784 ﹤0.01% 4177
2022
Q1 		$14K Buy
+868
New +$15.1K ﹤0.01% 4133
2021
Q3 		– Hold
0
– – – 4770
2021
Q2 		– Hold
0
– – – 4635

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
TECP
Trails Edge Capital Partners Atlanta, Georgia $437M AUM

Fidelity Investments's DFTX Position: Q1 2026 in Review

Fidelity Investments increased its Definium Therapeutics (DFTX) stake by 1,017% in Q1 2026, buying an estimated $28M and bringing the position to 1,809,610 shares worth $34.2M. The position accounts for ﹤0.01% of the portfolio, ranked #1570.

Fidelity Investments first reported a position in DFTX in Q1 2022 and has held it in 17 quarters since. 247 funds tracked by Wall St. Rank hold DFTX as of Q1 2026.

  • Fidelity Investments held 1,809,610 shares of Definium Therapeutics worth $34.2M as of Q1 2026.
  • Fidelity Investments bought 1,647,557 Definium Therapeutics shares in Q1 2026, an estimated $28M.
  • Definium Therapeutics made up ﹤0.01% of Fidelity Investments's portfolio in Q1 2026, its #1570 holding.
  • Fidelity Investments first reported a position in Definium Therapeutics in Q1 2022 and has held it in 17 quarters since.
  • 247 funds tracked by Wall St. Rank held Definium Therapeutics as of Q1 2026.

Based on Fidelity Investments's 13F filing for Q1 2026, filed 15 May 2026.