0000899243-17-018898 4 1 20170722 20170725 20170725 HUGHES JAMES ALTON 0001258525 4 34 001-37839 17980924 350 W WASHINGTON STREET, SUITE 600 TEMPE AZ 85281 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 doc4.xml FORM 4 SUBMISSION X0306 4 2017-07-22 0 0001455684 TPI COMPOSITES, INC TPIC 0001258525 HUGHES JAMES ALTON 8501 NORTH SCOTTSDALE ROAD, GAINEY CENTER II, SUITE 100 SCOTTSDALE AZ 85253 1 0 0 0 Common Stock 2017-07-22 4 M 0 2880 0.00 A 16516 D Restricted Stock Units 2017-07-22 4 M 0 2880 0.00 D Common Stock 2880 0 D The restricted stock units shall vest in full on the first year anniversary of the initial public offering; provided, that the Reporting Person continues to provide service to the Issuer through the vesting date. Each restricted stock unit represents a contingent right to receive one share of the common stock. All unvested restricted stock units will automatically expire upon Reporting Person's termination of service from Issuer. /s/ Steven G. Fishbach, Attorney-in-Fact 2017-07-25