Russell Investments Group’s Tectonic Therapeutic TECX Stock Holding History

Russell Investments Group’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	$191K	Buy	5,567 +4,716	+554%	+$139K	﹤0.01%	3193
2026 Q1	$26.3K	Sell	851 -78	-8%	-$1.92K	﹤0.01%	3538
2025 Q4	$19.4K	Buy	929 +19	+2%	+$353	﹤0.01%	3635
2025 Q3	$14.3K	Buy	+910	New	+$18.8K	﹤0.01%	3702
2022 Q1	–	Sell	-2,810	Closed	-$129K	–	2958
2021 Q4	$129K	Sell	2,810 -946	-25%	-$54.3K	﹤0.01%	2802
2021 Q3	$251K	Sell	3,756 -34	-0.9%	-$2.79K	﹤0.01%	2703
2021 Q2	$403K	Sell	3,790 -354	-9%	-$42K	﹤0.01%	2680
2021 Q1	$630K	Buy	4,144 +3,911	+1,679%	+$636K	﹤0.01%	2430
2020 Q4	$39K	Buy	+233	New	+$41.4K	﹤0.01%	2944

Other funds holding TECX

Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

SCM

Soleus Capital Management Greenwich, Connecticut $2.9B AUM 169.69% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

ALPS Advisors Denver, Colorado $21.3B AUM 23.41% 1-Year Est. Return

Fisher Asset Management Camas, Washington $336B AUM 34.66% 1-Year Est. Return

Quadrature Capital London, United Kingdom $11.7B AUM 87.29% 1-Year Est. Return

Clearstead Advisors Cleveland, Ohio $10.6B AUM 24.87% 1-Year Est. Return

Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Russell Investments Group's TECX Position: Q2 2026 in Review

Russell Investments Group increased its Tectonic Therapeutic (TECX) stake by 554% in Q2 2026, buying an estimated $139K and bringing the position to 5,567 shares worth $191K. The position accounts for ﹤0.01% of the portfolio, ranked #3193.

Russell Investments Group first reported a position in TECX in Q4 2020 and has held it in 9 quarters since. The position peaked at $630K in Q1 2021. 42 funds tracked by Wall St. Rank hold TECX as of Q2 2026.

Russell Investments Group held 5,567 shares of Tectonic Therapeutic worth $191K as of Q2 2026.
Russell Investments Group bought 4,716 Tectonic Therapeutic shares in Q2 2026, an estimated $139K.
Tectonic Therapeutic made up ﹤0.01% of Russell Investments Group's portfolio in Q2 2026, its #3193 holding.
Russell Investments Group first reported a position in Tectonic Therapeutic in Q4 2020 and has held it in 9 quarters since.
Russell Investments Group's Tectonic Therapeutic position peaked at $630K in Q1 2021.
42 funds tracked by Wall St. Rank held Tectonic Therapeutic as of Q2 2026.

Based on Russell Investments Group's 13F filing for Q2 2026, filed 6 Aug 2026.