ECVT shareholder plans sale of 29,886 shares

A shareholder of ECVT filed a notice to sell up to 29,886 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services on or after July 17, 2026 on the NYSE, with an aggregate market value of $385,508.48.

Rhea-AI Filing Summary

A shareholder of ECVT filed a notice to sell up to 29,886 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services on or after July 17, 2026 on the NYSE, with an aggregate market value of $385,508.48.

The shares relate to three grants of restricted stock dated June 15, 2021 (9,533 shares), January 16, 2023 (2,033 shares), and January 5, 2024 (18,320 shares).

Key Figures

Shares proposed to be sold: 29,886 shares Aggregate market value: $385,508.48 Grant 1 restricted stock: 9,533 shares +2 more

5 metrics

Shares proposed to be sold 29,886 shares Common stock listed for sale on or after July 17, 2026

Aggregate market value $385,508.48 Value associated with 29,886 shares of common stock

Grant 1 restricted stock 9,533 shares Restricted stock granted on June 15, 2021

Grant 2 restricted stock 2,033 shares Restricted stock granted on January 16, 2023

Grant 3 restricted stock 18,320 shares Restricted stock granted on January 5, 2024

Key Terms

Restricted Stock, Executive Financial Services, NYSE

3 terms

Restricted Stock financial

"Common | 06/15/2021 | Restricted Stock | Issuer"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

NYSE financial

"109453484 | 07/17/2026 | NYSE"

A large, regulated marketplace where stocks and other securities are listed and traded, acting like a global auction house that matches buyers and sellers and helps determine share prices. It matters to investors because listing and trading there provide liquidity, price discovery, and regulatory oversight—making it easier to buy or sell holdings and giving companies a visible platform that can affect credibility and access to capital.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stock sale is being planned for ECVT in this Form 144 filing?

A shareholder of ECVT plans to sell up to 29,886 shares of common stock, with an aggregate market value of $385,508.48, according to the notice of proposed sale.

When is the planned sale date for the ECVT shares?

The planned sale date for the 29,886 ECVT shares is on or after July 17, 2026. This is the date listed for the proposed transaction on the NYSE.

Through which broker will the ECVT shares be sold?

The proposed sale of ECVT shares is to be executed through Morgan Stanley Smith Barney LLC Executive Financial Services, based at 1 New York Plaza, 8th Floor, New York, NY 10004.

What types of ECVT securities are covered by this planned sale?

The planned sale covers common stock acquired via restricted stock grants dated June 15, 2021, January 16, 2023, and January 5, 2024, totaling 29,886 shares.

How many ECVT shares come from each restricted stock grant?

The notice lists 9,533 shares from a June 15, 2021 grant, 2,033 shares from a January 16, 2023 grant, and 18,320 shares from a January 5, 2024 grant, all as restricted stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/17/2026 - 05:34 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001795151
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ECOVYST INC.
SEC File Number	001-38221
Address of Issuer	600 Lee Road, Suite 200 Wayne, PENNSYLVANIA 19087
Phone	(484) 617-1200
Name of Person for Whose Account the Securities are To Be Sold	Susan Ward
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	29886	385508.48	109453484	07/17/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	06/15/2021	Restricted Stock	Issuer			9533	06/15/2021	Not Applicable
Common	01/16/2023	Restricted Stock	Issuer			2033	01/16/2023	Not Applicable
Common	01/05/2024	Restricted Stock	Issuer			18320	01/05/2024	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	07/17/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Susan Fitzgerald Ward
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)