HWCM Reports 11.22M Ecovyst Shares; Sole Dispositive Power

Rhea-AI Filing Summary

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.

Positive

• Material disclosed stake: Beneficial ownership of 11,218,795 shares, representing 9.56% of the class
• Sole dispositive power: HWCM reports sole dispositive authority over all 11,218,795 shares it beneficially owns

Negative

• Voting limitation: Sole voting power covers 10,093,395 shares, less than dispositive power, because certain clients retained voting rights
• No shared voting/dispositive power: The filing shows 0 shared voting and dispositive power, indicating limited coordinated voting alliances disclosed here

Insights

Securities Analyst

TL;DR: HWCM holds a material passive stake (9.56%) with dispositive control but limited voting reach due to client voting retention.

From a securities-analysis perspective, a 9.56% beneficial stake is material and must be monitored by investors and the market for potential trading interest. The filing clarifies that HWCM has sole dispositive power over 11,218,795 shares but slightly less sole voting power (10,093,395), reflecting client-held voting rights. The adviser characterizes the position as held in the ordinary course and not intended to influence control, which is consistent with a passive 13G filing posture rather than an active 13D strategy.

Corporate Governance Expert

TL;DR: Governance impact appears limited—HWCM can trade shares but client voting retention constrains its direct influence.

From a governance standpoint, the distinction between dispositive and voting power matters: HWCM can dispose of the full 11,218,795 shares but cannot vote all of them because some clients retained voting authority. That arrangement reduces HWCM's ability to unilaterally influence corporate votes despite a sizable economic stake. The filing’s certification that the stake is not intended to change control supports a passive profile, though the position remains material to shareholder composition.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

Ecovyst Inc.

(Name of Issuer)

Common stock, par value $0.01 per share

(Title of Class of Securities)

27923Q109

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 27923Q109

1

Names of Reporting Persons

Hotchkis and Wiley Capital Management, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 10,093,395.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 11,218,795.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

11,218,795.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.56 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Ecovyst Inc.
(b)	Address of issuer's principal executive offices: 600 LEE ROAD, SUITE 200, WAYNE, PA, 19087
Item 2.
(a)	Name of person filing: Hotchkis and Wiley Capital Management, LLC
(b)	Address or principal business office or, if none, residence: 601 S. Figueroa Street, 39th Fl, Los Angeles, CA 90017
(c)	Citizenship: Delaware
(d)	Title of class of securities: Common stock, par value $0.01 per share
(e)	CUSIP No.: 27923Q109
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 11,218,795
(b)	Percent of class: 9.56 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 10,093,395
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 11,218,795
	(iv) Shared power to dispose or to direct the disposition of: 0 Note that certain of HWCM's clients have retained voting power over the Common Shares that they beneficially own. Accordingly, HWCM has the power to dispose of more Common Shares than it can vote.
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. The securities as to which this Schedule is filed by HWCM, in its capacity as investment adviser, are owned of record by clients of HWCM. Those clients have the right to receive, or the power to direct the receipt of, dividends from, or the proceeds from the sale of, such securities. No such client is known to have such right or power with respect to more than five percent of this class of securities.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Hotchkis and Wiley Capital Management, LLC

Signature:	Tina H. Kodama
Name/Title:	Tina H. Kodama | Chief Compliance Officer
Date:	08/13/2025

FAQ

How many Ecovyst (ECVT) shares does Hotchkis and Wiley own?

The filing reports beneficial ownership of 11,218,795 common shares of Ecovyst.

What percentage of Ecovyst does HWCM own?

HWCM's reported position represents 9.56% of Ecovyst's outstanding common stock.

Does HWCM have voting power over all the shares it owns?

HWCM has sole voting power over 10,093,395 shares and reports 0 shared voting power; some clients retained voting rights.

Does HWCM have the ability to sell all the shares it reports?

Yes; the filing shows HWCM has sole dispositive power over 11,218,795 shares, meaning it can direct their disposition.

Is this stake reported as intended to change control of Ecovyst?

The filing certifies the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control.