X0306 4 2018-05-29 0 0000717605 HEXCEL CORP /DE/ HXL 0001253158 Hennemuth Robert George HEXCEL CORPORATION 281 TRESSER BLVD., 16TH FLOOR STAMFORD CT 06901 0 1 0 0 See Remarks Common Stock 2018-05-29 4 S 0 17785 70.455 D 47279 D Common Stock 2018-05-29 4 S 0 100 71.00 D 47179 D Common Stock 2018-05-29 4 G 0 300 0.00 D 46879 D These reported sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on April 26, 2018. The price reported is a weighted average price. The shares were sold in multiple transactions at prices ranging from $70.000 to $70.958, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. EVP, Human Resources & Communications /s/ Steven A. Wein, as attorney-in-fact for Robert G. Hennemuth 2018-05-31