Ecovyst CFO disposes 4,246 shares

Ecovyst Inc. insider transaction: Vice President and Chief Financial Officer Michael Feehan reported a disposition of 4,246 shares of Ecovyst common stock on January 22, 2026 at a price of $10.84 per share, according to a Form 4 filing.

Rhea-AI Filing Summary

Ecovyst Inc. insider transaction: Vice President and Chief Financial Officer Michael Feehan reported a disposition of 4,246 shares of Ecovyst common stock on January 22, 2026 at a price of $10.84 per share, according to a Form 4 filing. After this transaction, he beneficially owns 363,454 shares of Ecovyst common stock, held in direct ownership.

Insider Trade Summary

Exercise Price or Tax Liability: 4,246 shares

Exercise Price or Tax Liability 1 txn

Insider Feehan Michael

Role See Remarks

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	4,246	$10.84	$46K

Holdings After Transaction: Common Stock — 363,454 shares (Direct)

FAQ

Who is the insider in this Ecovyst (ECVT) Form 4 filing?

The insider is Michael Feehan, who serves as Ecovyst Inc.'s Vice President and Chief Financial Officer, as stated in the remarks section.

What type of security did Michael Feehan transact in for Ecovyst (ECVT)?

Michael Feehan reported a transaction in Common Stock of Ecovyst Inc., as shown in Table I of the Form 4.

How many Ecovyst (ECVT) shares did Michael Feehan dispose of in this Form 4?

He disposed of 4,246 shares of Ecovyst common stock in the reported transaction.

At what price were the Ecovyst (ECVT) shares transacted in this Form 4?

The Form 4 shows a transaction price of $10.84 per share for the 4,246 shares of Ecovyst common stock.

How many Ecovyst (ECVT) shares does Michael Feehan own after this transaction?

Following the reported transaction, Michael Feehan beneficially owns 363,454 shares of Ecovyst common stock.

Is Michael Feehan's Ecovyst (ECVT) ownership direct or indirect in this Form 4?

The Form 4 lists his ownership form as Direct (D) for the 363,454 shares held after the transaction.

What transaction code is used in Michael Feehan’s Ecovyst (ECVT) Form 4 filing?

The transaction is labeled with code F in Table I of the Form 4, applied to the 4,246-share disposition.

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Accepted by SEC EDGAR 01/26/2026 - 04:00 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Feehan Michael

(Last) (First) (Middle)

C/O ECOVYST INC.

600 LEE ROAD, SUITE 200

(Street)

WAYNE PA 19087

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Ecovyst Inc. [ ECVT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	See Remarks

3. Date of Earliest Transaction (Month/Day/Year)
01/22/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	01/22/2026		F		4,246	D	$10.84	363,454	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Vice President and Chief Financial Officer

	/s/ Joseph S. Koscinski, as attorney-in-fact for Michael Feehan	01/26/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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