Tectonic Therapeutic, Inc. - Common Stock $0.0001 par value per share (TECX)

Historical Holders from Q2 2024 to Q3 2025

Symbol
TECX on Nasdaq
CUSIP
878972108
Type / Class
Equity / Common Stock $0.0001 par value per share
Shares outstanding
18.7M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
12.1M
Holdings value
$190M
% of all portfolios
0.001%
Grand Portfolio weight change
0%
Number of holders
97
Number of buys
56
Number of sells
-30
Average Value change %
+0%
Average buys %
+0.001%
Average sells %
-0.001%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Tectonic Therapeutic, Inc. - Common Stock $0.0001 par value per share (TECX)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
SPRINGER TIMOTHY A 31.5% +7.93% $72M $1.46M 4.31M +2.07% Timothy A. Springer Apr 3, 2025
FMR LLC 15% +47% $46.7M $21.4M 2.8M +84.6% FMR LLC Mar 31, 2025
MCGUIRE TERRANCE 6.3% 0% $11M -$8.34M 658K -43.2% Terrance McGuire Apr 3, 2025

Institutional Holders of Tectonic Therapeutic, Inc. - Common Stock $0.0001 par value per share (TECX)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 12.1M $190M -$11M $15.69 97
2025 Q2 12.1M $241M +$18.2M $19.87 82
2025 Q1 11.2M $199M +$3.98M $17.71 78
2024 Q4 7.69M $355M +$30.5M $46.17 70
2024 Q3 7.18M $217M +$53.3M $30.30 52
2024 Q2 5.35M $88M +$88M $16.47 39