4processed

Form 4 — Insider Transaction

SUTRO BIOPHARMA, INC.(STRO)

Filing Date

June 5, 2026

Accepted

June 5, 2026

Accession No.

0001891841-26-000002

CIK

0001382101

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
Hunter HeidiOther10.0K$010.0KStock Option (right to buy)Jun 5, 2026