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

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

1. Name and Address of Reporting Person ^*

Mocciaro Ilaria

(Last)

(First)

(Middle)

C/O COHERENT CORP.

375 SAXONBURG BOULEVARD

(Street)

SAXONBURG

16056

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
COHERENT CORP. [ COHR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

3. Date of Earliest Transaction (Month/Day/Year)
08/28/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	08/28/2026		A		1,612 ⁽¹⁾	A	$ 0	23,879	D
Common Stock	08/28/2026		A		2,449 ⁽²⁾	A	$ 0	26,328	D
Common Stock	08/28/2026		F		2,174 ⁽³⁾	D	$ 295.39	24,154	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Deferred Performance Stock Units	⁽⁴⁾	08/28/2026		A		2,335 ⁽⁴⁾		⁽⁴⁾	⁽⁴⁾	Common Stock	2,335	⁽⁴⁾	2,335	D

Explanation of Responses:

1. These shares represent a restricted stock unit award granted to the reporting person. One-third (1/3) of the restricted stock units will vest on August 28, 2027, and the remaining two-thirds (2/3) of the restricted stock units will vest in eight equal quarterly installments beginning on November 28, 2027.

2. Represents shares issued upon payout of the Performance Stock Units granted in August 2023. Of the total 4,784 Performance Stock Units that were subject to vesting on the transaction date, the reporting person elected to defer settlement of 2,335 of the underlying shares of common stock pursuant to the Coherent Corp. Deferred Compensation Plan; the deferred Performance Stock Units are reported in Table II. The remaining 2,449 underlying shares of common stock were settled, of which 758 shares were withheld for taxes and 1,691 shares were delivered to the reporting person.

3. These shares were withheld by the company to discharge withholding tax obligations of the reporting person and do not constitute an actual sale or other open market transaction.

4. Represents deferred stock units acquired upon the reporting person's election to defer settlement of 2,392 shares of the vested Performance Stock Units under the Coherent Corp. Deferred Compensation Plan (the "Plan"). Of the 2,392 deferred stock units, 57 units were withheld to satisfy FICA tax obligations, resulting in 2,335 deferred stock units credited to the reporting person's Plan account. The deferred stock units are deemed invested in our common stock and are payable solely in shares of common stock upon a qualifying distribution event under the Plan.

	/s/ Christopher M. Forrester, Attorney-in-Fact	09/01/2026
	** Signature of Reporting Person	Date
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