Ameriprise
DFTX

Ameriprise’s Definium Therapeutics DFTX Stock Holding History

Ameriprise’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 		$18.3M Buy
966,608
+462,367
+92% +$7.85M ﹤0.01% 1476
2025
Q4 		$6.75M Buy
+504,241
New +$6.24M ﹤0.01% 2216
2025
Q2 		– Sell
-15,048
Closed -$88K – 4069
2025
Q1 		$88K Buy
15,048
+2,443
+19% +$17.5K ﹤0.01% 3894
2024
Q4 		$87.7K Buy
+12,605
New +$86.7K ﹤0.01% 3963
2021
Q4 		– Sell
-693
Closed -$24K – 4017
2021
Q3 		$24K Buy
+693
New +$30K ﹤0.01% 3829

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

Ameriprise's DFTX Position: Q1 2026 in Review

Ameriprise increased its Definium Therapeutics (DFTX) stake by 92% in Q1 2026, buying an estimated $7.85M and bringing the position to 966,608 shares worth $18.3M. The position accounts for ﹤0.01% of the portfolio, ranked #1476.

Ameriprise first reported a position in DFTX in Q3 2021 and has held it in 5 quarters since. 247 funds tracked by Wall St. Rank hold DFTX as of Q1 2026.

  • Ameriprise held 966,608 shares of Definium Therapeutics worth $18.3M as of Q1 2026.
  • Ameriprise bought 462,367 Definium Therapeutics shares in Q1 2026, an estimated $7.85M.
  • Definium Therapeutics made up ﹤0.01% of Ameriprise's portfolio in Q1 2026, its #1476 holding.
  • Ameriprise first reported a position in Definium Therapeutics in Q3 2021 and has held it in 5 quarters since.
  • 247 funds tracked by Wall St. Rank held Definium Therapeutics as of Q1 2026.

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