0001562180-21-002315 4 1 20210315 20210317 20210317 Lockard Steven C 0001678420 4 34 001-37839 21752606 C/O TPI COMPOSITES, INC. 8501 N. SCOTTSDALE ROAD, SUITE 100 SCOTTSDALE AZ 85253 TPI COMPOSITES, INC 0001455684 3510 201590775 8501 N SCOTTSDALE ROAD GAINEY CENTER II, SUITE 100 SCOTTSDALE AZ 85253 480-305-8910 8501 N SCOTTSDALE ROAD GAINEY CENTER II, SUITE 100 SCOTTSDALE AZ 85253 TPI COMPOSITES INC 20090206 4 1 primarydocument.xml PRIMARY DOCUMENT X0306 4 2021-03-15 false 0001455684 TPI COMPOSITES, INC TPIC 0001678420 Lockard Steven C 8501 NORTH SCOTTSDALE ROAD, GAINEY CENTER II, SUITE 100 SCOTTSDALE AZ 85253 true false false false Common Stock 2021-03-15 4 M false 23522.00 0.00 A 425702.00 D Restricted Stock Units 2021-03-15 4 M false 23522.00 0.00 D Common Stock 23522.00 0.00 D 100% of the restricted stock units ("RSUs") vested in full on the third anniversary of the grant date; provided that the Reporting Person continues to provide service to the Issuer through the vesting date. The RSUs do not have an expiration date. Each RSU represents a contingent right to receive one share of the common stock. All unvested RSUs will automatically expire upon Reporting Person's termination of service from Issuer. /s/ Steven G. Fishbach, Attorney-in-Fact 2021-03-17