Simplex Trading’s Tectonic Therapeutic TECX Stock Holding History

Simplex Trading’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	$281K	Buy	9,100 +2,600	+40%	+$64K	﹤0.01%	3891
2025 Q4	$136K	Hold	6,500	–	–	﹤0.01%	4658
2025 Q3	$101K	Buy	6,500 +5,600	+622%	+$116K	﹤0.01%	5738
2025 Q2	$17K	Buy	+900	New	+$18.2K	﹤0.01%	6929
2022 Q2	–	Sell	-175	Closed	-$2K	–	11311
2022 Q1	$2K	Buy	175 +117	+202%	+$2.42K	﹤0.01%	9968
2021 Q4	$2K	Buy	58 +33	+132%	+$1.9K	﹤0.01%	10085
2021 Q3	$2K	Buy	+25	New	+$2.05K	﹤0.01%	9579
2021 Q2	–	Sell	-4	Closed	-$57K	–	10832
2021 Q1	$57K	Buy	+4	New	+$651	﹤0.01%	6448

Other funds holding TECX

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

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

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

Simplex Trading's TECX Position: Q1 2026 in Review

Simplex Trading reduced its Tectonic Therapeutic (TECX) stake by 85% in Q1 2026, selling an estimated $192K and leaving 1,351 shares worth $41.8K. The position accounts for ﹤0.01% of the portfolio, ranked #6065.

Simplex Trading first reported a position in TECX in Q3 2020 and has held it in 9 quarters since. The position peaked at $191K in Q4 2025. 111 funds tracked by Wall St. Rank hold TECX as of Q1 2026.

Simplex Trading held 1,351 shares of Tectonic Therapeutic worth $41.8K as of Q1 2026.
Simplex Trading sold 7,791 Tectonic Therapeutic shares in Q1 2026, an estimated $192K.
Tectonic Therapeutic made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #6065 holding.
Simplex Trading first reported a position in Tectonic Therapeutic in Q3 2020 and has held it in 9 quarters since.
Simplex Trading's Tectonic Therapeutic position peaked at $191K in Q4 2025.
111 funds tracked by Wall St. Rank held Tectonic Therapeutic as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.