Timothy A. Springer - Apr 3, 2025 SCHEDULE 13D/A Report for Tectonic Therapeutic, Inc. Common Stock, $0.0001 par value per share (TECX)

Filing Manager
SPRINGER TIMOTHY A
Reporting Manager
Timothy A. Springer
Security
Tectonic Therapeutic, Inc. Common Stock, $0.0001 par value per share
Symbol
TECX
Shares outstanding
13.7M shares
Disclosed Ownership
4.31M shares
Ownership
31.5%
Form type
SCHEDULE 13D/A
Date filed
4/7/2025, 07:20 PM
Date of event
Apr 3, 2025
Previous filing
Feb 10, 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Timothy A. Springer 31.5% 4.31M 4.31M 0 /s/ Timothy A. Springer Timothy A. Springer 0001055624
TAS Partners LLC 7.4% 1.38M 1.38M 0 /s/ Timothy A. Springer Timothy A. Springer/Manager 0001677543
Chafen Lu 1% 186K 186K 0 /s/ Chafen Lu Chafen Lu