XT
TECX

XTX Topco’s Tectonic Therapeutic TECX Stock Holding History

XTX Topco’s Portfolio TECX Stock Details TECX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-11,621
Closed -$359K – 4824
2026
Q1 		$359K Buy
+11,621
New +$286K 0.01% 2323
2025
Q4 		– Sell
-10,856
Closed -$170K – 3913
2025
Q3 		$170K Buy
+10,856
New +$224K 0.01% 1897
2024
Q2 		– Sell
-2,030
Closed -$31.2K – 2563
2024
Q1 		$31.2K Sell
2,030
-2,549
-56% -$40.4K ﹤0.01% 1547
2023
Q4 		$74.7K Buy
4,579
+2,153
+89% +$37K 0.02% 1168
2023
Q3 		$44.8K Buy
+2,426
New +$42.9K 0.01% 1290
2022
Q2 		– Sell
-1,941
Closed -$31K – 1151
2022
Q1 		$31K Buy
1,941
+11
+0.6% +$227 0.01% 618
2021
Q4 		$89K Buy
+1,930
New +$111K 0.05% 483

Other funds holding TECX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
FLAM
First Light Asset Management Edina, Minnesota $1.65B AUM 203.21% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
5VM
5AM Venture Management San Francisco, California $288M AUM 313.93% 1-Year Est. Return
B
Braidwell Stamford, Connecticut $2.7B AUM 88.53% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
VPC
Vestal Point Capital New York $4.28B AUM 239% 1-Year Est. Return

XTX Topco's TECX Position: Q2 2026 in Review

XTX Topco sold out of Tectonic Therapeutic (TECX) in Q2 2026, closing a stake of 11,621 shares — an estimated $359K sold.

XTX Topco first reported a position in TECX in Q4 2021 and held it in 7 quarters. The position peaked at $359K in Q1 2026. 122 funds tracked by Wall St. Rank hold TECX as of Q2 2026.

  • XTX Topco reported no remaining Tectonic Therapeutic position as of Q2 2026 after selling out during the quarter.
  • XTX Topco sold 11,621 Tectonic Therapeutic shares in Q2 2026, an estimated $359K.
  • XTX Topco first reported a position in Tectonic Therapeutic in Q4 2021 and held it in 7 quarters.
  • XTX Topco's Tectonic Therapeutic position peaked at $359K in Q1 2026.
  • 122 funds tracked by Wall St. Rank held Tectonic Therapeutic as of Q2 2026.

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