Ecovyst (ECVT) director granted 9,099 common shares in Form 4 filing

Rhea-AI Filing Summary

Humble Patti A. reported acquisition or exercise transactions in this Form 4 filing.

Ecovyst Inc. director Patti A. Humble received a grant of 9,099 shares of common stock, recorded at a price of $13.61 per share. This is a compensation-related award, not an open-market purchase. Following this grant, she directly holds 9,099 Ecovyst common shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Humble Patti A.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	9,099	$13.61	$124K

Holdings After Transaction: Common Stock — 9,099 shares (Direct)

Footnotes (1)

Key Figures

Equity grant size: 9,099 shares Grant price per share: $13.61 per share Shares held after transaction: 9,099 shares

3 metrics

Equity grant size 9,099 shares Common Stock grant to director Patti A. Humble

Grant price per share $13.61 per share Reported transaction price for the stock award

Shares held after transaction 9,099 shares Total direct Ecovyst holdings following the grant

Key Terms

Common Stock, Grant, award, or other acquisition, Form 4

3 terms

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Grant, award, or other acquisition financial

"transaction_code_description: "Grant, award, or other acquisition""

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Available on EDGAR 05/27/2026 - 04:02 PM Accepted by SEC EDGAR 05/27/2026 - 04:02 PM Learn about SEC filing dates

FAQ

What insider transaction did Ecovyst (ECVT) report for Patti A. Humble?

Ecovyst reported that director Patti A. Humble received a grant of 9,099 shares of common stock. The transaction is coded as a grant, award, or other acquisition, reflecting equity compensation rather than an open-market stock purchase.

How many Ecovyst (ECVT) shares did Patti A. Humble acquire in this Form 4?

Patti A. Humble acquired 9,099 shares of Ecovyst common stock. These shares were received as a grant classified as a “Grant, award, or other acquisition,” rather than being bought on the open market, and represent her entire reported direct holding.

What price per share is reported for Patti A. Humble’s Ecovyst (ECVT) stock grant?

The filing reports a value of $13.61 per share for Patti A. Humble’s 9,099-share grant. This figure reflects the transaction price used for reporting the equity award and does not indicate a separate cash purchase in the market.

What are Patti A. Humble’s Ecovyst (ECVT) holdings after this Form 4 transaction?

After the reported transaction, Patti A. Humble directly holds 9,099 Ecovyst common shares. The Form 4 shows no additional derivative positions and indicates this grant established her disclosed direct ownership level as of the transaction date.

Is Patti A. Humble’s Ecovyst (ECVT) Form 4 transaction a purchase or a grant?

The transaction is a grant, not an open-market purchase. It is coded as “A” with the description “Grant, award, or other acquisition,” indicating equity granted as compensation to the director rather than shares bought or sold in the market.

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^*

Humble Patti A.

(Last) (First) (Middle)

C/O ECOVYST INC.

600 LEE ROAD, SUITE 200

(Street)

WAYNE PENNSYLVANIA 19087

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/26/2026

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

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

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

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	05/26/2026		A		9,099	A	$13.61	9,099	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. Koscinski, as attorney-in-fact for Patti A. Humble	05/27/2026
	** 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.
* Form 4: SEC 1474 (03-26)