X0306 4 2019-01-14 false 0001455684 TPI COMPOSITES, INC TPIC 0001309058 DeRosa Michael Lawrence 565 E SWEDESFORD ROAD, SUITE 207 WAYNE PA 19087 true false false false Common Stock 2019-01-14 4 S false 49761.00 29.43 D 3220761.00 I See Footnote Common Stock 2019-01-15 4 S false 83802.00 29.48 D 3136959.00 I See Footnote Common Stock 2019-01-16 4 S false 37062.00 28.99 D 3099897.00 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 $28.93 to $29.82. 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. 3,172,463 shares of these securities are held of record by Element Partners II, L.P. (EP II) and 48,298 shares of these securities are held of record by Element Partners II Intrafund, L.P. (Intrafund). Element Partners II G.P., L.P. ("GP LP") is the general partner of both EP II and Intrafund, and Element II G.P., LLC (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 $28.97 to $29.60. 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. 3,089,918 shares of these securities are held of record by EP II and 47,041 shares of these securities are held of record by Intrafund. 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 $28.66 to $29.53. 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. 3,053,412 shares of these securities are held of record by EP II and 46,485 shares of these securities are held of record by Intrafund. 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 2019-01-16