X0306 4 2018-08-31 false 0001455684 TPI COMPOSITES, INC TPIC 0001309058 DeRosa Michael Lawrence 565 E SWEDESFORD ROAD, SUITE 207 WAYNE PA 19087 true false true false Common Stock 2018-08-31 4 S false 26433.00 27.95 D 5946695.00 I See Footnote Common Stock 2018-09-04 4 S false 39400.00 27.34 D 5907295.00 I See Footnote Common Stock 2018-09-05 4 S false 68559.00 27.07 D 5838736.00 I See Footnote Common Stock 6620.00 D This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $27.80 to $28.29. The price reported above reflects the weighted-average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected. 5,857,505 shares of these securities are held of record by EP II and 89,190 shares of these securities are held of record by Intrafund. Element Partners II G.P., L.P. ("GP LP") is the general partner of both EP II and Intrafund, and GP LLC is the general partner of GP LP. The Reporting Person is a managing member of GP LLC. The Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1943, as amended (the "Exchange Act"), except to the extent of his pecuniary interest therein, if any. This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $27.11 to $27.88. The price reported above reflects the weighted-average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected. 5,818,696 shares of these securities are held of record by EP II and 88,599 shares of these securities are held of record by Intrafund. Element Partners II G.P., L.P. ("GP LP") is the general partner of both EP II and Intrafund, and GP LLC is the general partner of GP LP. The Reporting Person is a managing member of GP LLC. The Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1943, as amended (the "Exchange Act"), except to the extent of his pecuniary interest therein, if any. This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $26.53 to $27.46. The price reported above reflects the weighted-average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected. 5,751,165 shares of these securities are held of record by EP II and 87,571 shares of these securities are held of record by Intrafund. Element Partners II G.P., L.P. ("GP LP") is the general partner of both EP II and Intrafund, and GP LLC is the general partner of GP LP. The Reporting Person is a managing member of GP LLC. The Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1943, as amended (the "Exchange Act"), except to the extent of his pecuniary interest therein, if any. /s/ Steven G. Fishbach, Attorney-in-Fact 2018-09-05