SAM
TECX

Sectoral Asset Management’s Tectonic Therapeutic TECX Stock Holding History

Sectoral Asset Management’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 		$2.44M Buy
71,009
+51,950
+273% +$1.53M 1.7% 21
2026
Q1 		$628K Sell
19,059
-23,196
-55% -$571K 0.52% 50
2025
Q4 		$881K Sell
42,255
-150,515
-78% -$2.8M 0.71% 37
2025
Q3 		$3.02M Buy
192,770
+93,800
+95% +$1.94M 1.87% 19
2025
Q2 		$1.97M Buy
+98,970
New +$2.01M 1.3% 25

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

Sectoral Asset Management's TECX Position: Q2 2026 in Review

Sectoral Asset Management increased its Tectonic Therapeutic (TECX) stake by 273% in Q2 2026, buying an estimated $1.53M and bringing the position to 71,009 shares worth $2.44M. The position accounts for 1.7% of the portfolio, ranked #21.

Sectoral Asset Management first reported a position in TECX in Q2 2025 and has held it in 5 quarters since. The position peaked at $3.02M in Q3 2025. 123 funds tracked by Wall St. Rank hold TECX as of Q2 2026.

  • Sectoral Asset Management held 71,009 shares of Tectonic Therapeutic worth $2.44M as of Q2 2026.
  • Sectoral Asset Management bought 51,950 Tectonic Therapeutic shares in Q2 2026, an estimated $1.53M.
  • Tectonic Therapeutic made up 1.7% of Sectoral Asset Management's portfolio in Q2 2026, its #21 holding.
  • Sectoral Asset Management first reported a position in Tectonic Therapeutic in Q2 2025 and has held it in 5 quarters since.
  • Sectoral Asset Management's Tectonic Therapeutic position peaked at $3.02M in Q3 2025.
  • 123 funds tracked by Wall St. Rank held Tectonic Therapeutic as of Q2 2026.

Based on Sectoral Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.