Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Valdez Gloria L 2. Issuer Name and Ticker or Trading Symbol ESCO TECHNOLOGIES INC [ESE] 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) C/O ESCO TECHNOLOGIES INC., 645 MARYVILLE CENTRE DR., SUITE 300 3. Date of Earliest Transaction (Month/Day/Year) 05/01/2026 (Street) ST LOUIS, MO 63141 4. If Amendment, Date 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 (City) (State) (Zip) 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 05/01/2026 M 197(1) A $326.96 3,677 D

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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 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

Restricted Share Units

$ 0

05/01/2026

M

197(1)

05/01/2026(2)

05/01/2026(2)

Common Stock

197(1)

$326.96

8,245.2403

D

Restricted Share Units

$ 0

05/01/2026

D

106.4604(3)

05/01/2026(4)

05/01/2026(4)

Common Stock

106.4604(1)

$326.96

8,138.7799

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Valdez Gloria L C/O ESCO TECHNOLOGIES INC. 645 MARYVILLE CENTRE DR., SUITE 300 ST LOUIS, MO 63141	X

Signatures

/s/ Jeffrey D. Fisher, Attorney-in-Fact		05/04/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Represents conversion of specified number of RSUs into underlying whole shares of common stock.
(2)	RSUs were issued in lieu of stock award in 2020 and in lieu of subsequent cash dividends thereon, and are distributable in common stock pursuant to the prior election of the reporting person in 10 semiannual installments beginning May 1, 2025.
(3)	Represents disposition to issuer of specified number of RSUs for cash at a price per share equal to the NYSE closing price on the disposition date.
(4)	RSUs were issued in lieu of cash award in 2020 and in lieu of subsequent cash dividends theron, and are distributable as cash pursuant to the prior election of the reporting person in 5 annual installments beginning May 1, 2025.
Remarks: Power of Attorney on file

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