04/19/2024 4:10 PM | Trinseo (Filer)
| Form PRE 14A | |
04/02/2024 3:26 PM | Trinseo (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
03/13/2024 3:28 PM | Trinseo (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
03/05/2024 5:40 PM | Trinseo (Issuer) Yang Arthas Bing (Reporting)
| Form 3 Initial statement of beneficial ownership of securities | |
02/27/2024 2:51 PM | Hendriks Han (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/27/2024 2:54 PM | Cooney Paula M. (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/23/2024 3:22 PM | Schewe Rainer (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
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02/23/2024 3:24 PM | Hendriks Han (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/23/2024 3:25 PM | Trinseo (Issuer) van Kessel Bregje (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/23/2024 3:28 PM | Cooney Paula M. (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/23/2024 3:30 PM | Chaclas Angelo N. (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/23/2024 3:19 PM | Frisch Johanna (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/23/2024 3:21 PM | Greene Roger (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/21/2024 8:21 PM | Stasse David Phillip (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/21/2024 7:55 PM | Schewe Rainer (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/21/2024 7:57 PM | Chaclas Angelo N. (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/21/2024 7:59 PM | Thomas Timothy J (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/21/2024 8:01 PM | Reverberi Francesca (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/21/2024 8:03 PM | Ni James Mingyu (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/21/2024 8:04 PM | BOZICH FRANK A (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/21/2024 8:06 PM | Trinseo (Issuer) van Kessel Bregje (Reporting)
| Form 4 Statement of changes in beneficial ownership of securities | |
02/06/2024 8:36 AM | BlackRock Inc. (Filed by) Trinseo (Subject)
| Form SC 13G/A | |
11/06/2023 12:48 PM | Trinseo (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
11/03/2023 3:23 PM | Trinseo (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
10/30/2023 5:55 AM | Trinseo (Filer)
| Form 8-K/A | |
10/06/2023 1:34 PM | BlackRock Inc. (Filed by) Trinseo (Subject)
| Form SC 13G/A | |
09/22/2023 10:30 AM | Trinseo (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
09/18/2023 12:53 PM | Stasse David Phillip (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
09/13/2023 1:52 PM | BOZICH FRANK A (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
09/13/2023 1:55 PM | Thomas Timothy J (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
09/13/2023 1:57 PM | Chaclas Angelo N. (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
09/13/2023 2:01 PM | Desmond Jeanmarie F. (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
09/08/2023 9:08 AM | Trinseo (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
08/23/2023 3:45 PM | Trinseo (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
08/16/2023 5:30 AM | Trinseo (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
08/10/2023 5:30 AM | Trinseo (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
08/04/2023 11:10 AM | Trinseo (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
08/04/2023 11:48 AM | Trinseo (Filer)
| Form S-8 Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans | |
07/20/2023 3:37 PM | Trinseo (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
07/13/2023 4:03 PM | MARTENS PHILIP R (Reporting) Trinseo (Issuer)
| Form 4/A | |
07/13/2023 4:05 PM | Desmond Jeanmarie F. (Reporting) Trinseo (Issuer)
| Form 4/A | |
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07/13/2023 4:09 PM | Misheff Donald T (Reporting) Trinseo (Issuer)
| Form 4/A | |
07/13/2023 4:12 PM | LIN SANDRA BEACH (Reporting) Trinseo (Issuer)
| Form 4/A | |
07/13/2023 4:13 PM | ALVARADO JOSEPH (Reporting) Trinseo (Issuer)
| Form 4/A | |
07/13/2023 4:16 PM | TOMKINS MARK E (Reporting) Trinseo (Issuer)
| Form 4/A | |
07/13/2023 4:18 PM | Brifo Victoria (Reporting) Trinseo (Issuer)
| Form 4/A | |
07/13/2023 3:46 PM | STEINMETZ HENRI (Reporting) Trinseo (Issuer)
| Form 4/A | |
07/13/2023 3:50 PM | De Leener Pierre-Marie (Reporting) Trinseo (Issuer)
| Form 4/A | |
06/16/2023 2:21 PM | FARRELL MATTHEW (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 2:23 PM | Johnson KLynne (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 2:25 PM | LIN SANDRA BEACH (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 2:26 PM | STEINMETZ HENRI (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 2:28 PM | TOMKINS MARK E (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 2:30 PM | MARTENS PHILIP R (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 2:10 PM | COTE JEFFREY J (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 2:16 PM | De Leener Pierre-Marie (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 2:18 PM | Desmond Jeanmarie F. (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 2:00 PM | Misheff Donald T (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 2:04 PM | ALVARADO JOSEPH (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 2:07 PM | Brifo Victoria (Reporting) Trinseo (Issuer)
| Form 4 Statement of changes in beneficial ownership of securities | |
06/16/2023 10:07 AM | Trinseo (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
06/09/2023 10:57 AM | Trinseo (Filer)
| Form DEFA14A | |
05/05/2023 11:23 AM | Trinseo (Filer)
| Form 10-Q General form for quarterly reports under Section 13 or 15(d) | |
05/05/2023 10:57 AM | Trinseo (Filer)
| Form 8-K Current report pursuant to Section 13 or 15(d) | |
05/01/2023 9:00 AM | Trinseo (Filer)
| Form DEF 14A | |