Baker Bros. Advisors’s Tectonic Therapeutic TECX Stock Holding History

Baker Bros. Advisors’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	$18.8M	Sell	607,788 -295,612	-33%	-$7.27M	0.11%	54
2025 Q4	$18.8M	Buy	903,400 +803,400	+803%	+$14.9M	0.11%	54
2025 Q3	$1.57M	Hold	100,000	–	–	0.01%	82
2025 Q2	$1.99M	Hold	100,000	–	–	0.02%	76
2025 Q1	$1.77M	Buy	+100,000	New	+$3.26M	0.02%	77

Other funds holding TECX

Fidelity Investments

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return

Aberdeen Group Edinburgh, United Kingdom $61.9B AUM 29.81% 1-Year Est. Return

BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return

Braidwell Stamford, Connecticut $3B AUM 46.72% 1-Year Est. Return

First Light Asset Management Edina, Minnesota $1.12B AUM 114.45% 1-Year Est. Return

5AM Venture Management San Francisco, California $360M AUM 345.76% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Vestal Point Capital New York $3.58B AUM 189.12% 1-Year Est. Return

Bollard Group Boston, Massachusetts $3.27B AUM 1.06% 1-Year Est. Return