Form: EFFECT

Notice of Effectiveness

May 20, 2021

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Notice of Effectiveness

Effectiveness Date: May 20, 2021 4:30 P.M.
Form: S-3
CIK: 0000808326
Company Name: EMCORE CORP
File Number: 333-256090