Mariner
DFTX

Mariner’s Definium Therapeutics DFTX Stock Holding History

Mariner’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 		$1.28M Sell
27,207
-7,644
-22% -$189K ﹤0.01% 1770
2026
Q1 		$659K Buy
34,851
+14,685
+73% +$249K ﹤0.01% 2276
2025
Q4 		$271K Buy
20,166
+2,082
+12% +$25.8K ﹤0.01% 2933
2025
Q3 		$213K Buy
18,084
+6,041
+50% +$56.3K ﹤0.01% 3117
2025
Q2 		$78.2K Buy
+12,043
New +$79.2K ﹤0.01% 3282

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

Mariner's DFTX Position: Q2 2026 in Review

Mariner reduced its Definium Therapeutics (DFTX) stake by 22% in Q2 2026, selling an estimated $189K and leaving 27,207 shares worth $1.28M. The position accounts for ﹤0.01% of the portfolio, ranked #1770.

Mariner first reported a position in DFTX in Q2 2025 and has held it in 5 quarters since. 362 funds tracked by Wall St. Rank hold DFTX as of Q2 2026.

  • Mariner held 27,207 shares of Definium Therapeutics worth $1.28M as of Q2 2026.
  • Mariner sold 7,644 Definium Therapeutics shares in Q2 2026, an estimated $189K.
  • Definium Therapeutics made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #1770 holding.
  • Mariner first reported a position in Definium Therapeutics in Q2 2025 and has held it in 5 quarters since.
  • 362 funds tracked by Wall St. Rank held Definium Therapeutics as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.