REICIN ALISE 4

4 · Tectonic Therapeutic, Inc. · Filed Mar 5, 2026

Form 4

Period: 2026-03-04

DirectorChief Executive Officer

Transactions

Award
Common Stock
[F1]
2026-03-04+76,500→ 311,547 total
Award
Employee Stock Option (Right to Buy)
[F3]
2026-03-04+69,250→ 69,250 total
Exercise: $27.41Exp: 2036-03-03→ Common Stock (69,250 underlying)

Holdings

Footnotes (3)

[F1]These shares are represented by restricted stock units. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. The shares shall vest in 3 equal annual installments on each of March 4, 2027, March 4, 2028 and March 4, 2029, subject to the Reporting Person's continued service to the Issuer on each such vesting date.
[F2]These shares are held by the Reicin-Boiarsky Family Trust (the "Trust"). The Reporting Person's spouse is a co-trustee of the Trust. Accordingly, the Reporting Person may be deemed to have shared voting and dispositive power over the securities held by the Trust. The Reporting Person disclaims beneficial ownership of the shares held by the Trust except to the extent of her pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.
[F3]The shares subject to the option vest in 48 equal monthly installments beginning on April 4, 2026, subject to the Reporting Person's continued service to the Issuer on each such vesting date.

Signature

/s/ Daniel Lochner, Attorney-in-Fact|2026-03-05

Documents

1 file