12/16/2024
3:18 PM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
11/01/2024
3:07 PM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
10/31/2024
5:02 AM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
09/10/2024
2:20 PM | Ecovyst Inc. (Subject)
Ecovyst (Subject)
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC (Filed by)
| Form SC 13G/A | |
08/01/2024
5:02 AM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
06/21/2024
3:12 PM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 11-K
Annual reports of employee stock purchase, savings and similar plans pursuant to Section 15(d) | |
06/12/2024
3:31 PM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
|
05/09/2024
5:35 AM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
05/09/2024
5:30 AM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 8-K/A | |
05/06/2024
5:31 AM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
05/06/2024
5:32 AM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form DEFA14A | |
05/02/2024
5:10 AM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
04/08/2024
4:16 PM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form DEF 14A | |
04/08/2024
4:17 PM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form ARS | |
03/22/2024
4:39 PM | Ecovyst Inc. (Subject)
Ecovyst (Subject)
Ward Susan F (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
03/15/2024
4:27 PM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form PRE 14A | |
02/29/2024
3:02 PM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 10-K
Annual report pursuant to Section 13 or 15(d) | |
02/28/2024
5:31 AM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
02/28/2024
5:02 AM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
01/24/2024
3:41 PM | Catalano Anna C (Reporting)
Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/24/2024
3:41 PM | Coxon Robert (Reporting)
Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/24/2024
3:41 PM | Bitting Kurt (Reporting)
Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/24/2024
3:42 PM | Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
Vann Kyle D (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/24/2024
3:42 PM | Bradley David A. (Reporting)
Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/24/2024
3:42 PM | Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
Koscinski Joseph S. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/24/2024
3:42 PM | Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
Fogarty Kevin Michael (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/24/2024
3:42 PM | Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
Vann George L. Jr. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/24/2024
3:43 PM | Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
Ward Susan F (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/24/2024
3:43 PM | Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
Feehan Michael (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/24/2024
3:43 PM | Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
Whittleston Paul (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/24/2024
3:43 PM | Brown Bryan K. (Reporting)
Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/09/2024
3:21 PM | Bitting Kurt (Reporting)
Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/09/2024
3:21 PM | Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
Feehan Michael (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/09/2024
3:21 PM | Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
Whittleston Paul (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/09/2024
3:22 PM | Ecovyst Inc. (Issuer)
Ecovyst (Issuer)
Vann George L. Jr. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/18/2023
5:16 AM | Ecovyst Inc. (Filer)
Ecovyst (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
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