Ecovyst Inc SEC Filings

Rubric Capital Management LP filed a Schedule 13G reporting beneficial ownership of 10,400,000 shares of Ecovyst Inc. (ECVT) common stock, representing 9.09% of the class as of the reported measurement.

The percentage is based on 114,417,966 shares outstanding as of August 1, 2025, as cited from Ecovyst’s Form 10‑Q. Rubric and David Rosen report shared voting power: 10,400,000 and shared dispositive power: 10,400,000, with no sole voting or dispositive power. The date of event is 09/30/2025. Rubric Capital Master Fund LP has the right to receive or direct dividends or sale proceeds for more than 5% of the common stock. The filing certifies the securities were acquired and are held in the ordinary course and not for the purpose of changing or influencing control.

Hotchkis & Wiley Capital Management, LLC filed an amended Schedule 13G (Amendment No. 3) reporting passive ownership in Ecovyst Inc. (ECVT). The firm beneficially owns 8,852,152 common shares, representing 7.74% of the class as of the event date 09/30/2025. It reports sole voting power over 7,960,852 shares and sole dispositive power over 8,852,152 shares.

Shares are held by HWCM’s investment advisory clients, and no single client is known to hold more than five percent. The certification states the securities were acquired and are held in the ordinary course and not to influence control.

Ecovyst (ECVT) Form 4: Director Susan F. Ward sold 15,000 shares of common stock on 11/07/2025 at a weighted average price of $8.4012. The shares were sold in multiple transactions at prices ranging from $8.400 to $8.415. Following the sale, she beneficially owns 78,261 shares, held directly.

ECVT filed a Form 144 indicating a proposed sale of 15,000 shares of common stock with an aggregate market value of $126,016.50.

The approximate sale date is 11/07/2025 on the NYSE through Morgan Stanley Smith Barney LLC Executive Financial Services. Shares outstanding were 114,019,414. The seller acquired 12,995 restricted shares on 01/05/2022 and 2,005 restricted shares on 01/05/2024.

Ecovyst Inc. reported Q3 2025 results with sales of $204,907 and operating income of $28,275. Net income from continuing operations was $372 as a higher tax provision weighed on results.

The company entered a definitive agreement to sell its Advanced Materials & Catalysts business to Technip Energies for $556,000, subject to regulatory approvals and customary closing conditions. In connection with held-for-sale accounting, Ecovyst recorded an $83,898 impairment in Q3, driving a discontinued operations loss of $79,627 and a total net loss of $79,255.

Year to date, sales were $524,082 with a net loss of $76,866. Cash from operating activities was $98,547; capital expenditures were $51,596, and the Cornerstone sulfuric acid asset acquisition closed for $41,315. The company repurchased 3,536,364 shares for $27,387 under its ongoing authorization. Cash was $81,976 and term loan debt was $864,271; the term loan rate was 5.98% at September 30, 2025. Shares outstanding were 114,019,414 as of October 29, 2025.

Ecovyst Inc. (ECVT) furnished an 8-K announcing it issued a press release reporting financial results for the quarter ended September 30, 2025. The press release is provided as Exhibit 99.1.

The company states the information furnished under Item 2.02, including Exhibit 99.1, is not deemed “filed” for purposes of Section 18 of the Exchange Act and is not incorporated by reference into other filings unless specifically referenced. The Inline XBRL cover page is included as Exhibit 104. The report was signed by Vice President and Chief Financial Officer Michael Feehan.

Hotchkis and Wiley Capital Management, LLC reports beneficial ownership of 11,218,795 shares of Ecovyst Inc. common stock, representing 9.56% of the class. The filing states HWCM has sole dispositive power over 11,218,795 shares and sole voting power over 10,093,395 shares, with 0 shares shown as shared voting or dispositive power. The filing notes the shares are owned of record by HWCM clients and that certain clients have retained voting power, so HWCM can dispose of more shares than it can vote. HWCM certifies the securities were acquired and are held in the ordinary course of business and not for the purpose of changing control.

Ecovyst Inc. reported the involuntary departure of George L. Vann, Jr., effective August 11, 2025, and disclosed the separation terms the company expects to provide under a Separation and Transition Agreement. The filing lists specific cash payments: two weeks pay in lieu of notice of $15,000, 58 weeks of severance equal to $435,000, a 2025 target bonus target payment of $234,000 and an additional pro rata 2025 target bonus of $27,000, with potential further pro rata bonus based on actual performance.

The company will continue health benefits at active employee rates during the severance period and will allow a pro rata portion of performance-based stock units to remain outstanding and be earned based on actual performance through the original vesting dates. The Separation Agreement will be filed as an exhibit to Ecovyst's upcoming quarterly report.