Form: EFFECT

Notice of Effectiveness

May 19, 2022

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: May 19, 2022
Accession Number: 0001193125-22-058489
Submission Type: POS AM
CIK: 0001382101
Company Name: SUTRO BIOPHARMA, INC.
File Number: 333-255014