Sec Form 4 Filing - DeByle Thomas D. @ CHASE CORP - 2023-11-15

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person DeByle Thomas D. 2. Issuer Name and Ticker or Trading Symbol CHASE CORP [ CCF] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 375 UNIVERSITY AVE 3. Date of Earliest Transaction (MM/DD/YY) 11/15/2023 (Street) WESTWOOD, MA02090 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 Chase Corporation Common Stock 11/15/2023 D 3,886 D 0 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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other DeByle Thomas D. 375 UNIVERSITY AVE WESTWOOD, MA02090 X Signatures Paula M Myers, By Power of Attorney 11/15/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )This Form 4 reports securities disposed of pursuant to the Agreement and Plan of Merger, dated as of July 21, 2023, by and among Chase Corporation (the "Issuer"), Formulations Parent Corporation ("Parent") and Formulations Merger Sub Corporation, a Delaware corporation and a direct, wholly owned subsidiary of Parent ("Merger Sub"), pursuant to which, effective as of November 15, 2023 (the "Effective Time"), Merger Sub merged with and into the Issuer, with the Issuer surviving the merger as a wholly owned subsidiary of Parent (the "Merger"), and each issued and outstanding share of the Issuer's Common Stock (each, a "Share") was cancelled and converted into the right to receive $127.50 in cash (the "Per Share Consideration"), subject to any applicable withholding of taxes and without interest. ( 2 )In accordance with the Merger Agreement, all shares underlying the restricted stock awards granted to the Reporting Person vested as of the Effective Time and were cancelled and converted into the right to receive a cash payment, without interest, in an amount equal to the Per Share Consideration, subject to any applicable withholding of taxes.

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).

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