Dec 16, 2019 04:01PM Form 4/A Trinseo S.A. For: Jun 17 Filed by: Pappas Christopher D

Dec 16, 2019 11:07AM Form 4 Trinseo S.A. For: Dec 12 Filed by: Pappas Christopher D

Jun 18, 2019 11:56AM Form 4 Trinseo S.A. For: Jun 17 Filed by: Pappas Christopher D

Feb 28, 2019 08:33PM Form 4 Trinseo S.A. For: Feb 26 Filed by: Pappas Christopher D

Feb 26, 2019 08:48PM Form 4 Trinseo S.A. For: Feb 22 Filed by: Pappas Christopher D

Mar 1, 2018 05:02PM Form 4 Trinseo S.A. For: Feb 27 Filed by: Pappas Christopher D

Feb 26, 2018 06:18PM Form 4 Trinseo S.A. For: Feb 22 Filed by: Pappas Christopher D

Dec 13, 2017 05:03PM Trinseo CEO Christopher Pappas Honored with Leadership Award for Outstanding Corporate Reinvention

Nov 13, 2017 04:18PM Form 4 Trinseo S.A. For: Nov 09 Filed by: Pappas Christopher D

Sep 6, 2017 04:48PM Form 4 Trinseo S.A. For: Sep 05 Filed by: Pappas Christopher D

Jul 6, 2017 04:29PM Form 4 Trinseo S.A. For: Jul 05 Filed by: Pappas Christopher D

Jun 21, 2017 08:00AM Headwaters MB Advised Trinseo on its Acquisition of API Applicazioni Plastiche Industriali S.p.A.

Jun 14, 2017 05:18PM Form 4 Trinseo S.A. For: Jun 13 Filed by: Pappas Christopher D

Jun 5, 2017 05:27PM Form 4 Trinseo S.A. For: Jun 01 Filed by: Pappas Christopher D

May 16, 2017 05:03PM Form 4 Trinseo S.A. For: May 15 Filed by: Pappas Christopher D

May 3, 2017 06:00PM Form 4 Trinseo S.A. For: May 01 Filed by: Pappas Christopher D

Apr 25, 2017 05:36PM Form 4 Trinseo S.A. For: Apr 24 Filed by: Pappas Christopher D

Apr 18, 2017 05:23PM Form 4 Trinseo S.A. For: Apr 17 Filed by: Pappas Christopher D

Apr 6, 2017 09:00AM Trinseo CEO Christopher Pappas to Receive Leadership Award from NY American Chemical Society CME Group

Mar 14, 2017 04:49PM Form 4 Trinseo S.A. For: Mar 13 Filed by: Pappas Christopher D

Feb 21, 2017 05:46PM Form 4 Trinseo S.A. For: Feb 16 Filed by: Pappas Christopher D

Feb 14, 2017 05:57PM Form 4 Trinseo S.A. For: Feb 13 Filed by: Pappas Christopher D

Jan 17, 2017 05:02PM Form 4 Trinseo S.A. For: Jan 13 Filed by: Pappas Christopher D

Feb 24, 2016 04:27PM Form 4 Trinseo S.A. For: Feb 22 Filed by: Pappas Christopher D

Mar 3, 2015 09:37PM Form 4 Trinseo S.A. For: Feb 27 Filed by: Pappas Christopher D

Aug 19, 2014 07:59PM Form 4 Trinseo S.A. For: Aug 15 Filed by: Pappas Christopher D