Ecovyst (ECVT) officer awarded 11,052 shares, holdings reach 389,071

Rhea-AI Filing Summary

Ecovyst Inc. officer Michael Feehan reported receiving a grant of common stock. On March 4, 2026, he acquired 11,052 shares of Ecovyst common stock in a grant or award transaction at $11.31 per share. Following this award, his directly held common stock ownership increased to 389,071 shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Feehan Michael

Role See Remarks

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	11,052	$11.31	$125K

Holdings After Transaction: Common Stock — 389,071 shares (Direct)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

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)
03/04/2026

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	03/04/2026		A		11,052	A	$11.31	389,071	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	03/06/2026
	** 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 transaction did Ecovyst (ECVT) report for Michael Feehan?

Ecovyst reported that officer Michael Feehan received a grant of 11,052 shares of common stock. The award was recorded on March 4, 2026 at a reported price of $11.31 per share, increasing his directly held stake in the company.

How many Ecovyst (ECVT) shares does Michael Feehan hold after this Form 4?

After the reported transaction, Michael Feehan directly holds 389,071 shares of Ecovyst common stock. This total reflects the addition of 11,052 granted shares acquired on March 4, 2026 in a grant or award, not an open-market purchase.

Was the Ecovyst (ECVT) Form 4 transaction a stock purchase or a grant?

The Form 4 shows a grant or award acquisition, not an open-market stock purchase. Transaction code "A" and its description indicate the 11,052 shares of common stock were awarded to Michael Feehan on March 4, 2026 at a price of $11.31.

What price is reported for Michael Feehan’s Ecovyst (ECVT) stock grant?

The reported transaction price for the grant is $11.31 per share of Ecovyst common stock. This price applies to the 11,052 shares awarded to officer Michael Feehan on March 4, 2026, as disclosed in the Form 4 insider filing.

Is Michael Feehan’s Ecovyst (ECVT) ownership direct or indirect after the grant?

The filing classifies Michael Feehan’s ownership as direct following the transaction. After receiving the 11,052-share grant of common stock, his directly owned position in Ecovyst increased to 389,071 shares, with no indirect ownership nature indicated in the disclosure.