0001562180-21-002212 4 1 20210310 20210312 20210312 Siwek William E 0001645109 4 34 001-37839 21738340 C/O TPI COMPISITES, INC. 8501 N. SCOTTSDALE RD, SUITE 280 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 2021-03-10 false 0001455684 TPI COMPOSITES, INC TPIC 0001645109 Siwek William E 8501 NORTH SCOTTSDALE ROAD, GAINEY CENTER II, SUITE 100 SCOTTSDALE AZ 85253 false true false false President and CEO Restricted Stock Units 2021-03-10 4 A false 15178.00 0.00 A Common Stock 15178.00 15178.00 D Restricted Stock Units 2021-03-10 4 A false 14809.00 0.00 A Common Stock 14809.00 14809.00 D Each restricted stock unit ("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. The performance-based RSUs will be credited as follows: 1/3 will be credited upon the Issuer's common stock achieving a market price of $66, 1/3 will be credited upon the Issuer's common stock achieving a market price of $72 and 1/3 will be credited upon the Issuer's common stock achieving a market price of $78, in each case during the performance period from March 10, 2021 through December 31, 2023, and the total credited amount of RSUs will vest on the last day of the performance period so long as the Reporting Person continues to provide service to the Issuer through the performance period. 100% of the RSUs will vest on March 10, 2024; provided, that the Reporting Person continues to provide services to the Issuer through the vesting date. /s/ Steven G. Fishbach, Attorney-in-Fact 2021-03-12