0001562180-24-002962 4 1 20240321 20240322 20240322 Siwek William E 0001645109 4 34 001-37839 24775880 C/O TPI COMPISITES, INC. 8501 N. SCOTTSDALE RD, SUITE 280 SCOTTSDALE AZ 85253 TPI COMPOSITES, INC 0001455684 3510 06 Technology 201590775 1231 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 X0508 4 2024-03-21 false 0001455684 TPI COMPOSITES, INC TPIC 0001645109 Siwek William E 9200 E PIMA CENTER PKWY SUITE 250 SCOTTSDALE AZ 85258 false true false false President and CEO false Common Stock 2024-03-21 4 M false 12034.00 0.00 A 213504.00 D Common Stock 2024-03-21 4 F false 5157.00 2.88 D 208347.00 D Restricted Stock Units 2024-03-21 4 M false 12034.00 0.00 D Common Stock 12034.00 36102.00 D Represents the shares required to satisfy tax withholding obligations in connection with the vesting of 12,034 restricted stock units("RSUs"). 25% of the RSUs vested in full on the first anniversary of the grant date, 25% will vest on the second anniversary of the grant date and 50% will vest 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 2024-03-22