Ecovyst (NYSE: ECVT) director adds 19,399 shares in insider filing

Rhea-AI Filing Summary

Ecovyst Inc. director Bryan K. Brown reported acquiring additional company stock. On February 3, 2026, he acquired 19,399 shares of common stock at a price of $0 per share.

After this transaction, Brown beneficially owned 109,015 common shares, held in direct ownership, as disclosed in this Form 4 filing.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Brown Bryan K.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	19,399	$0.00	--

Holdings After Transaction: Common Stock — 109,015 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^*

Brown Bryan K.

(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)

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

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		A		19,399	A	$0	109,015	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:

	/s/ Joseph S. Koscinki, as attorney-in-fact for Bryan K. Brown	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 transaction did Ecovyst (ECVT) disclose in this Form 4?

Ecovyst disclosed that director Bryan K. Brown acquired 19,399 shares of common stock on February 3, 2026 at $0 per share. This transaction increased his directly held beneficial ownership in the company.

How many Ecovyst (ECVT) shares does Bryan K. Brown own after the transaction?

Following the reported transaction, Bryan K. Brown beneficially owned 109,015 shares of Ecovyst common stock. The filing shows these shares as held under direct ownership after the February 3, 2026 acquisition.

What was the price per share in Bryan K. Brown’s Ecovyst (ECVT) stock acquisition?

The Form 4 states that 19,399 Ecovyst common shares were acquired at a price of $0 per share. This zero-dollar price is recorded in the transaction table for the February 3, 2026 acquisition.

What is Bryan K. Brown’s relationship to Ecovyst (ECVT)?

The filing identifies Bryan K. Brown as a director of Ecovyst Inc. He is not listed as an officer or 10% owner, and the form is filed by one reporting person in that director capacity.

Is Bryan K. Brown’s Ecovyst (ECVT) ownership direct or indirect?

The Form 4 indicates that 109,015 Ecovyst common shares are held with direct ownership. The ownership form column for his post-transaction holdings is marked D, and no indirect ownership nature is described.

When did the reported Ecovyst (ECVT) insider transaction occur?

The reported insider transaction occurred on February 3, 2026. On that date, director Bryan K. Brown acquired 19,399 shares of Ecovyst common stock, as shown in the non-derivative securities table of the Form 4.