Mariner
QTTB icon

Mariner’s Q32 Bio QTTB Stock Holding History

Mariner’s Portfolio QTTB Stock Details QTTB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-11,780
Closed -$17.6K – 3792
2025
Q2 		$17.6K Sell
11,780
-73,000
-86% -$124K ﹤0.01% 3432
2025
Q1 		$140K Sell
84,780
-36,647
-30% -$98.7K ﹤0.01% 3117
2024
Q4 		$418K Buy
+121,427
New +$3.83M ﹤0.01% 2332
2024
Q1 		– Sell
-1,102
Closed -$12.1K – 3254
2023
Q4 		$12.1K Hold
1,102
– – ﹤0.01% 3023
2023
Q3 		$23.2K Hold
1,102
– – ﹤0.01% 2837
2023
Q2 		$17.6K Sell
1,102
-4
-0.4% -$72 ﹤0.01% 2784
2023
Q1 		$21K Sell
1,106
-27
-2% -$673 ﹤0.01% 2724
2022
Q4 		$26K Sell
1,133
-199
-15% -$5.28K ﹤0.01% 2671
2022
Q3 		$39K Buy
+1,332
New +$54.3K ﹤0.01% 2337

Other funds holding QTTB

O
OrbiMed New York $5.05B AUM 125.28% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
CG
Carlyle Group Washington, District of Columbia $10B AUM 10.61% 1-Year Est. Return
ACA
Acorn Capital Advisors New York $352M AUM 299.18% 1-Year Est. Return
AVM
Arch Venture Management Chicago, Illinois $677M AUM 322.07% 1-Year Est. Return
MAM
Monaco Asset Management Monaco $1.26B AUM 60.23% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
P
Pfizer New York $239M AUM 232.47% 1-Year Est. Return
S
Sanofi Paris, France $534M AUM 205.96% 1-Year Est. Return
TOCUITCONY
Trustees of Columbia University in the City of New York New York $891M AUM 17.3% 1-Year Est. Return

Mariner's QTTB Position: Q3 2025 in Review

Mariner sold out of Q32 Bio (QTTB) in Q3 2025, closing a stake of 11,780 shares — an estimated $17.6K sold.

Mariner first reported a position in QTTB in Q3 2022 and held it in 9 quarters. The position peaked at $418K in Q4 2024. 53 funds tracked by Wall St. Rank hold QTTB as of Q3 2025.

  • Mariner reported no remaining Q32 Bio position as of Q3 2025 after selling out during the quarter.
  • Mariner sold 11,780 Q32 Bio shares in Q3 2025, an estimated $17.6K.
  • Mariner first reported a position in Q32 Bio in Q3 2022 and held it in 9 quarters.
  • Mariner's Q32 Bio position peaked at $418K in Q4 2024.
  • 53 funds tracked by Wall St. Rank held Q32 Bio as of Q3 2025.

Based on Mariner's 13F filing for Q3 2025, filed 14 Nov 2025.