0001562180-17-003168 4 1 20170929 20171003 20171003 Desai Jayshree S 0001716735 4 34 001-37839 171120154 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 2017-09-29 false 0001455684 TPI COMPOSITES, INC TPIC 0001716735 Desai Jayshree S 8501 N SCOTTSDALE ROAD, GAINEY CENTER II, SUITE 100 SCOTTSDALE AZ 85253 true false false false Restricted Stock Units 2017-09-29 4 A false 3020.00 0.00 A Common Stock 3020.00 3020.00 D Stock Options (Right to buy) 22.34 2017-09-29 2017-09-29 4 A false 5790.00 22.34 A 2027-09-29 Common Stock 5790.00 5790.00 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 shall vest on the earlier of (i) the one year anniversary of the grant date or (ii) the next annual meeting of stockholders of the Issuer, subject to the Reporting Person's continued service as a director pursuant to the Issuer's Non-Employee Director Compensation Policy. 25% of the securities vest on the first anniversary date of the grant and 6.25% vest on each quarterly anniversary thereafter, such that 100% of these securities vest on the fourth anniversary of this grant; provided the Reporting Person continues to provide service to the Issuer through each applicable vesting date. This award was granted on the date of the Reporting Person's appointment to the Issuer's Board of Directors pursuant to the Issuer's Non-Employee Director Compensation Policy. /s/ Steven G. Fishbach, Attorney-in-Fact 2017-10-03