0000899243-17-018914 4 1 20170722 20170725 20170725 GIOVACCHINI PAUL G 0001016697 4 34 001-37839 17981017 SEACOST CAPITAL CORP 55 FERNCROFT STREET DANVERS MA 01923 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 0001016697 GIOVACCHINI PAUL G 10 MILL POND LANE SIMSBURY CT 06070 1 0 1 0 Common Stock 2017-07-22 4 M 0 2880 0.00 A 2880 D Common Stock 4778491 I See footnote Restricted Stock Units 2017-07-22 4 M 0 2880 0.00 D Common Stock 2880 0 D The Reporting Person is contractually obligated to turn over any proceeds from the sale of these shares to Landmark Growth Capital Partners, L.P. ("LGCP") and Landmark IAM Growth Capital L.P. ("Landmark IAM"). The Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of his pecuniary interest therein, if any. 3,236,968 shares of these securities are held of record by LGCP and 1,541,523 shares of these securities are held of record by Landmark IAM. Landmark Growth Capital Partners, LLC ("LGCP LLC") is the general partner of both Landmark LGCP and Landmark IAM, and Landmark Equity Advisors, LLC ("LEA LLC") is the managing member of LGCP LLC. The Reporting Person is an advisor to LEA LLC. The Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of his pecuniary interest therein, if any. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Common Stock. All of the RSUs vest on the first anniversary of the effective date of the initial public offering of the Issuer; provided, that the Reporting Person continues to provide service to the Issuer through the vesting date. The RSUs do not have an expiration date. /s/ Steven G. Fishbach, Attorney-in-Fact 2017-07-25