XT
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XTX Topco’s Q32 Bio QTTB Stock Holding History

XTX Topco’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
2026
Q2 		$139K Buy
+10,874
New +$90.9K ﹤0.01% 3415
2026
Q1 		– Sell
-20,353
Closed -$67.6K – 4493
2025
Q4 		$67.6K Buy
+20,353
New +$57.5K ﹤0.01% 2752
2024
Q1 		– Sell
-3,059
Closed -$33.5K – 2412
2023
Q4 		$33.5K Buy
3,059
+1,882
+160% +$27.5K 0.01% 1295
2023
Q3 		$24.8K Buy
+1,177
New +$24K ﹤0.01% 1352
2022
Q1 		– Sell
-1,456
Closed -$95K – 999
2021
Q4 		$95K Buy
1,456
+890
+157% +$86.4K 0.05% 475
2021
Q3 		$80K Buy
+566
New +$72.1K 0.03% 579

Other funds holding QTTB

O
OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return
BCM
Boxer Capital Management San Diego, California $1.33B AUM 864.5% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $881M AUM 160.77% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
OM
Opaleye Management Boston, Massachusetts $1.1B AUM 197.64% 1-Year Est. Return
LGM
Logos Global Management San Francisco, California $2.32B AUM 536.01% 1-Year Est. Return
SC
SummitTX Capital Fort Worth, Texas $3.89B AUM 55.94% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

XTX Topco's QTTB Position: Q2 2026 in Review

XTX Topco opened a new position in Q32 Bio (QTTB) in Q2 2026: 10,874 shares worth $139K. The stake represents ﹤0.01% of the portfolio and ranks #3415 among its holdings. This is a return to the name: XTX Topco previously reported a position in QTTB as recently as Q4 2025.

XTX Topco first reported a position in QTTB in Q3 2021 and has held it in 6 quarters since. 72 funds tracked by Wall St. Rank hold QTTB as of Q2 2026.

  • XTX Topco held 10,874 shares of Q32 Bio worth $139K as of Q2 2026.
  • Q32 Bio was a new XTX Topco position in Q2 2026.
  • Q32 Bio made up ﹤0.01% of XTX Topco's portfolio in Q2 2026, its #3415 holding.
  • XTX Topco first reported a position in Q32 Bio in Q3 2021 and has held it in 6 quarters since.
  • 72 funds tracked by Wall St. Rank held Q32 Bio as of Q2 2026.

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