Jane Street
TECX

Jane Street’s Tectonic Therapeutic TECX Stock Holding History

Jane Street’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
Q1 		– Sell
-19,321
Closed -$475K – 13547
2025
Q4 		$403K Sell
19,321
-9,399
-33% -$175K ﹤0.01% 8177
2025
Q3 		$451K Buy
+28,720
New +$593K ﹤0.01% 8082
2025
Q2 		– Sell
-47,145
Closed -$835K – 11349
2025
Q1 		$835K Buy
47,145
+17,443
+59% +$568K ﹤0.01% 5906
2024
Q4 		$1.37M Buy
+29,702
New +$1.26M ﹤0.01% 4814
2023
Q1 		– Sell
-2,420
Closed -$20.7K – 10140
2022
Q4 		$20.7K Buy
+2,420
New +$21.3K ﹤0.01% 8605
2022
Q3 		– Sell
-1,193
Closed -$13K – 10713
2022
Q2 		$13K Buy
+1,193
New +$14.1K ﹤0.01% 9257
2020
Q4 		– Sell
-844
Closed -$132K – 8309
2020
Q3 		$132K Buy
+844
New +$170K ﹤0.01% 6654

Other funds holding TECX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $61.9B AUM 29.81% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
B
Braidwell Stamford, Connecticut $3B AUM 46.72% 1-Year Est. Return
FLAM
First Light Asset Management Edina, Minnesota $1.12B AUM 114.45% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
5VM
5AM Venture Management San Francisco, California $360M AUM 345.76% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPC
Vestal Point Capital New York $3.58B AUM 189.12% 1-Year Est. Return