Ecovyst (ECVT) CFO acquires 19,399 shares, withholds 4,834

Rhea-AI Filing Summary

Ecovyst Inc. executive Michael Feehan reported two stock transactions involving company common shares. On February 3, 2026, he had 4,834 shares of Ecovyst common stock disposed of at $10.31 per share under transaction code F. On the same date, he acquired 19,399 shares of common stock at a reported price of $0 under transaction code A. After these transactions, Feehan directly owned 378,019 shares of Ecovyst common stock in total. He is identified as the company’s Vice President and Chief Financial Officer.

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

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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)
02/03/2026

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	02/03/2026		F		4,834	D	$10.31	358,620	D
Common Stock	02/03/2026		A		19,399	A	$0	378,019	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	02/05/2026
	** 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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Ecovyst (ECVT) CFO Michael Feehan report?

Michael Feehan reported one disposal and one acquisition of Ecovyst common stock. He disposed of 4,834 shares at $10.31 under code F and acquired 19,399 shares at a price of $0 under code A, both dated February 3, 2026.

How many Ecovyst (ECVT) shares does CFO Michael Feehan own after the Form 4?

After the reported transactions, Michael Feehan directly owns 378,019 Ecovyst shares. This reflects the net result of 4,834 shares disposed of and 19,399 shares acquired on February 3, 2026, as shown in the Form 4 filing.

What prices were reported for Michael Feehan’s Ecovyst (ECVT) stock transactions?

The Form 4 lists two different transaction prices. The 4,834 common shares disposed of under transaction code F were priced at $10.31 per share, while the 19,399 common shares acquired under transaction code A show a reported price of $0 per share.

What do the transaction codes F and A mean in the Ecovyst (ECVT) Form 4?

The Form 4 uses standard SEC transaction codes for the reported trades. Code F applies to the 4,834-share disposal at $10.31, and code A applies to the 19,399-share acquisition at $0. These codes categorize the nature of each insider transaction.

What is Michael Feehan’s role at Ecovyst (ECVT) according to the Form 4?

The filing identifies Michael Feehan as an officer of Ecovyst. In the remarks, he is specifically described as the company’s Vice President and Chief Financial Officer, and his reported holdings are listed as directly owned common stock.

Were Michael Feehan’s Ecovyst (ECVT) shares held directly or indirectly?

The Form 4 shows all reported Ecovyst common shares as directly owned. Both the 358,620 shares before the acquisition and the 378,019 shares after the transactions are marked with ownership form “D,” indicating direct beneficial ownership with no indirect holding noted.