Ecovyst Inc. — All Filings
548 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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144
3
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4
424B4
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ARS
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DEF 14A
DEFA14A
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UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC 13G/A | SC 13G/A | 0001193125-22-031258 | Feb 9, 2022 | — |
| 4 | FORM 4 SUBMISSION | 0000899243-22-003010 | Jan 24, 2022 | Jan 20, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-002411 | Jan 19, 2022 | Jan 17, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-002410 | Jan 19, 2022 | Jan 17, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-002405 | Jan 19, 2022 | Jan 17, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-002402 | Jan 19, 2022 | Jan 17, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-002401 | Jan 19, 2022 | Jan 17, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-002399 | Jan 19, 2022 | Jan 17, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-002398 | Jan 19, 2022 | Jan 17, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-002394 | Jan 19, 2022 | Jan 17, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-002412 | Jan 19, 2022 | Jan 17, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-002417 | Jan 19, 2022 | Jan 17, 2022 |
| S-8 | S-8 | 0001193125-22-009982 | Jan 14, 2022 | — |
| 4 | FORM 4 SUBMISSION | 0000899243-22-001366 | Jan 7, 2022 | Jan 5, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-001368 | Jan 7, 2022 | Jan 5, 2022 |
| 4 | FORM 4 SUBMISSION | 0000899243-22-001369 | Jan 7, 2022 | Jan 5, 2022 |
| 4 | — | 0000950157-21-001265 | Dec 20, 2021 | — |
| SC 13D/A | AMENDMENT NO. 4 | 0000950157-21-001264 | Dec 20, 2021 | — |
| 4 | FORM 4 SUBMISSION | 0000899243-21-049063 | Dec 20, 2021 | — |
| 4 | FORM 4 SUBMISSION | 0000899243-21-049060 | Dec 20, 2021 | — |
| 4 | FORM 4 SUBMISSION | 0000899243-21-045783 | Nov 23, 2021 | — |
| 8-K | 8-K | 0001193125-21-338496 | Nov 23, 2021 | Nov 18, 2021 |
| 4 | — | 0000950157-21-001201 | Nov 23, 2021 | — |
| SC 13D/A | AMENDMENT NO. 3 | 0000950157-21-001200 | Nov 23, 2021 | — |
| 4 | FORM 4 SUBMISSION | 0000899243-21-045789 | Nov 23, 2021 | Nov 19, 2021 |
| 4 | FORM 4 SUBMISSION | 0000899243-21-045787 | Nov 23, 2021 | — |
| 424B7 | 424B7 | 0001193125-21-335154 | Nov 19, 2021 | — |
| 8-K | FORM 8-K | 0001193125-21-331206 | Nov 16, 2021 | Dec 31, 2020 |
| 424B7 | 424B7 | 0001193125-21-331268 | Nov 16, 2021 | — |
| 10-Q | 10-Q | 0001708035-21-000026 | Nov 9, 2021 | Sep 30, 2021 |
| 8-K | 8-K | 0001708035-21-000024 | Nov 9, 2021 | — |
| 8-K | 8-K | 0001193125-21-272230 | Sep 14, 2021 | — |
| 3 | FORM 3 SUBMISSION | 0000899243-21-032982 | Aug 13, 2021 | Aug 5, 2021 |
| 10-Q | 10-Q | 0001708035-21-000021 | Aug 9, 2021 | Jun 30, 2021 |
| 8-K | 8-K | 0001708035-21-000019 | Aug 5, 2021 | — |
| 8-K/A | 8-K/A | 0001193125-21-236303 | Aug 4, 2021 | Mar 22, 2021 |
| 8-K | 8-K | 0001193125-21-234929 | Aug 3, 2021 | Aug 1, 2021 |
| 8-K | 8-K | 0001193125-21-222303 | Jul 23, 2021 | Jul 22, 2021 |
| 8-K | 8-K | 0001193125-21-216416 | Jul 15, 2021 | Jul 12, 2021 |
| 8-K | 8-K | 0001193125-21-204700 | Jun 30, 2021 | Jun 24, 2021 |
| 11-K | 11-K | 0001708035-21-000014 | Jun 21, 2021 | Dec 31, 2020 |
| 8-K | 8-K | 0001193125-21-188901 | Jun 11, 2021 | Jun 9, 2021 |
| SD | SD | 0001193125-21-176191 | May 28, 2021 | — |
| 10-Q | 10-Q | 0001708035-21-000012 | May 17, 2021 | Mar 31, 2021 |
| NT 10-Q | NT 10-Q | 0001193125-21-157595 | May 11, 2021 | Mar 31, 2021 |
| 8-K | 8-K | 0001708035-21-000009 | May 6, 2021 | — |
| SC 13D/A | AMENDMENT NO. 2 | 0000950157-21-000489 | May 5, 2021 | — |
| 4 | FORM 4 SUBMISSION | 0000899243-21-018348 | May 5, 2021 | — |
| 4 | FORM 4 SUBMISSION | 0000899243-21-018351 | May 5, 2021 | — |
| 4 | — | 0000950157-21-000490 | May 5, 2021 | — |