0001562180-17-003326 4 1 20171023 20171025 20171025 Lockard Steven C 0001678420 4 34 001-37839 171153142 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 2017-10-23 false 0001455684 TPI COMPOSITES, INC TPIC 0001678420 Lockard Steven C 8501 NORTH SCOTTSDALE ROAD, GAINEY CENTER II, SUITE 100 SCOTTSDALE AZ 85253 true true false false President and CEO Restricted Stock Units 2017-10-23 4 A false 39350.00 0.00 A Common Stock 39350.00 223670.00 D Each restricted stock unit ("RSU") represents a contingent right to receive one share of Common Stock. Unvested RSUs will automatically expire upon the Reporting Person's termination of service from the Issuer. The RSUs vest in three tranches as follows: 20% on March 7, 2018, 30% on March 7, 2019 and 50% on March 7, 2020; provided, that the Reporting Person continues to provide service to the Issuer through the applicable vesting date. /s/ Steven G. Fishbach, Attorney-in-Fact 2017-10-25