Peter McNamara - 22 Dec 2025 Form 4 Insider Report for Tectonic Therapeutic, Inc. (TECX)

Role
Chief Scientific Officer
Signature
/s/ Daniel Lochner, Attorney-in-Fact
Issuer symbol
TECX
Transactions as of
22 Dec 2025
Net transactions value
+$20,860
Form type
4
Filing time
29 Dec 2025, 16:35:05 UTC
Previous filing
29 Sep 2025
Next filing
10 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
McNamara Peter Chief Scientific Officer C/O TECTONIC THERAPEUTIC, INC., 490 ARSENAL WAY, SUITE 210, WATERTOWN /s/ Daniel Lochner, Attorney-in-Fact 29 Dec 2025 0002023255

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TECX Common Stock Options Exercise $20,860 +7,000 +21% $2.98 40,879 22 Dec 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction TECX Employee Stock Option (Right to Buy) Options Exercise -7,000 -22% 25,065 22 Dec 2025 Common Stock 7,000 $2.98 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The shares subject to the option vest in 48 equal monthly installments beginning on June 27, 2022, subject to the Reporting Person's continued service to the Issuer on each such vesting date.
F2 Received in exchange for a stock option to acquire 60,000 shares of common stock pursuant to that certain merger, as more fully described on the Reporting Person's Form 4 filed with the Securities and Exchange Commission on June 24, 2024. https://www.sec.gov/Archives/edgar/data/1681087/000141588924017962/xslF345X05/form4-06242024_080611.xml