# EDGAR Filing Document

**Accession Number:** 0001708035
**File Stem:** 0001708035-26-000070
**Filing Date:** 2026-5
**Character Count:** 10333
**Document Hash:** a3b102178bcfb166c951a99e15c4754b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001708035-26-000070.hdr.sgml**: 20260521

**ACCESSION NUMBER**: 0001708035-26-000070

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 11

**CONFORMED PERIOD OF REPORT**: 20260520

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**FILED AS OF DATE**: 20260521

**DATE AS OF CHANGE**: 20260521

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Ecovyst Inc.
- **CENTRAL INDEX KEY:** 0001708035
- **STANDARD INDUSTRIAL CLASSIFICATION:** CHEMICALS & ALLIED PRODUCTS [2800]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 813406833
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38221
- **FILM NUMBER:** 261008263

**BUSINESS ADDRESS:**
- **STREET 1:** 600 LEE ROAD, SUITE 200
- **CITY:** WAYNE
- **STATE:** PA
- **ZIP:** 19087
- **BUSINESS PHONE:** 484-617-1200

**MAIL ADDRESS:**
- **STREET 1:** 600 LEE ROAD, SUITE 200
- **CITY:** WAYNE
- **STATE:** PA
- **ZIP:** 19087

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PQ Group Holdings Inc.
- **DATE OF NAME CHANGE:** 20170531

?xml version='1.0' encoding='ASCII'? ecvt-20260520

    

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K**

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d)**

**of The Securities Exchange Act of 1934**

**Date of Report (Date of earliest event reported): May 20, 2026**

**Ecovyst Inc.**

**Commission File Number: 001-38221** 

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| | |
|:---|:---|
| **Delaware** | **81-3406833** |
| **(State or other jurisdiction of<br>incorporation or organization)** | **(I.R.S. Employer<br>Identification No.)** |
| **600 Lee Road, Suite 200** | |
| **Wayne, Pennsylvania** | **19087** |
| **(Address of principal executive offices)** | **(Zip Code)** |
| **(484)** | **617-1200** |
| **(Registrant's telephone number, including area code)** | **(Registrant's telephone number, including area code)** |

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| | |
|:---|:---|
| Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: | Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: |
| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |

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**Securities registered pursuant to Section 12(b) of the Act:**

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading<br>symbol** | **Name of each exchange<br>on which registered** |
| **Common stock, par value $0.01 per share** | **ECVT** | **New York Stock Exchange** |

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| | | |
|:---|:---|:---|
| Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). | Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). | Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). |
| | Emerging growth company | ☐ |
| If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. | If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. | ☐ |

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|:---|:---|
| **Item 5.07** | **Submission of Matters to a Vote of Security Holders.** |
| On May 20, 2026, Ecovyst Inc. (the "Company") held its 2026 Annual Meeting of Stockholders (the "Annual Meeting"). There were 109,450,306 shares of the Company's common stock issued and outstanding on the record date and entitled to vote at the Annual Meeting, and 100,214,085 shares of the Company's common stock were represented in person or by proxy at the Annual Meeting. Set forth below are the final voting results for each of the proposals submitted to a vote of the Company's stockholders at the Annual Meeting. For more information about the proposals, please see the Company's definitive proxy statement, which was filed with the U.S. Securities and Exchange Commission on April 15, 2026. | On May 20, 2026, Ecovyst Inc. (the "Company") held its 2026 Annual Meeting of Stockholders (the "Annual Meeting"). There were 109,450,306 shares of the Company's common stock issued and outstanding on the record date and entitled to vote at the Annual Meeting, and 100,214,085 shares of the Company's common stock were represented in person or by proxy at the Annual Meeting. Set forth below are the final voting results for each of the proposals submitted to a vote of the Company's stockholders at the Annual Meeting. For more information about the proposals, please see the Company's definitive proxy statement, which was filed with the U.S. Securities and Exchange Commission on April 15, 2026. |
| On May 20, 2026, Ecovyst Inc. (the "Company") held its 2026 Annual Meeting of Stockholders (the "Annual Meeting"). There were 109,450,306 shares of the Company's common stock issued and outstanding on the record date and entitled to vote at the Annual Meeting, and 100,214,085 shares of the Company's common stock were represented in person or by proxy at the Annual Meeting. Set forth below are the final voting results for each of the proposals submitted to a vote of the Company's stockholders at the Annual Meeting. For more information about the proposals, please see the Company's definitive proxy statement, which was filed with the U.S. Securities and Exchange Commission on April 15, 2026. | On May 20, 2026, Ecovyst Inc. (the "Company") held its 2026 Annual Meeting of Stockholders (the "Annual Meeting"). There were 109,450,306 shares of the Company's common stock issued and outstanding on the record date and entitled to vote at the Annual Meeting, and 100,214,085 shares of the Company's common stock were represented in person or by proxy at the Annual Meeting. Set forth below are the final voting results for each of the proposals submitted to a vote of the Company's stockholders at the Annual Meeting. For more information about the proposals, please see the Company's definitive proxy statement, which was filed with the U.S. Securities and Exchange Commission on April 15, 2026. |
| ***Proposal One***: Each of the five Class I director nominees was elected to serve on the Company's board of directors for a term of one year. The results of the vote were as follows:  | ***Proposal One***: Each of the five Class I director nominees was elected to serve on the Company's board of directors for a term of one year. The results of the vote were as follows:  |
| ***Proposal One***: Each of the five Class I director nominees was elected to serve on the Company's board of directors for a term of one year. The results of the vote were as follows:  | ***Proposal One***: Each of the five Class I director nominees was elected to serve on the Company's board of directors for a term of one year. The results of the vote were as follows:  |

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| | | | |
|:---|:---|:---|:---|
| Nominee | Votes For | Votes Withheld | Broker Non-Votes |
| Bryan K. Brown | 93378205 | 601455 | 6234425 |
| Kurt J. Bitting | 93335714 | 643946 | 6234425 |
| David A. Bradley | 93243708 | 735952 | 6234425 |
| Kevin M. Fogarty | 93389655 | 590005 | 6234425 |
| Patti A. Humble | 93493882 | 485778 | 6234425 |

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***Proposal Two***: The stockholders approved, on an advisory basis, the compensation paid by the Company to its named executive officers (the "say-on-pay proposal"). The results of the advisory vote were as follows:<br>

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| | | | |
|:---|:---|:---|:---|
| For | Against | Abstain | Broker Non-Votes |
| 93,076,499 | 870,548 | 32,613 | 6,234,425 |

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***Proposal Three***: The appointment of PricewaterhouseCoopers LLP as the independent registered public accounting firm of the Company for the fiscal year ending December 31, 2026 was ratified. The results of the vote were as follows:<br>

For Against Abstain <br> 100,146,577 61,486 6,022

Proposal three was a routine matter and, therefore, there were no broker non-votes relating to this proposal.

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**&nbsp;&nbsp;&nbsp;&nbsp;**

**SIGNATURE**

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| | | | |
|:---|:---|:---|:---|
| Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. | Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. | Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. | Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. |
|  |  |  | **Ecovyst Inc.** |
| Date: | May 21, 2026 | By: | /s/ JOSEPH S. KOSCINSKI |
|  |  | Name: | Joseph S. Koscinski |
|  |  | Title: | Vice President, Chief Administrative Officer, General Counsel and Secretary |

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