Tectonic Therapeutic, Inc. 4

Chief Medical Officer Marcella K. Ruddy received an option award for 24,250 shares of Tectonic Therapeutic, Inc. common stock at a $29.92 exercise price.

On September 3, 2026, Marcella K. Ruddy, Chief Medical Officer of Tectonic Therapeutic, Inc., was granted an employee stock option to purchase 24,250 shares of the company’s common stock at an exercise price of $29.92 per share. The option is a new award (coded as an acquisition) with a 10-year term expiring on September 2, 2036, and features a time-based vesting schedule under which 1/8 of the option will vest on September 3, 2026, with the remaining shares vesting in 42 equal monthly installments beginning October 3, 2026, contingent on her continued service. Following this grant, her derivative position reflects 24,250 option shares, while the non-derivative line shows 24,250 shares of common stock beneficially owned in a direct capacity, with overall value estimable at approximately $725,000 based on the option exercise price as a proxy in the absence of market data.

Filing Facts

CIK

1681087

Ticker

TECX

Form

4

Source Type

fda

Accession

0002023849-26-000012

Alert Tier

5