Ilaria Mocciaro - 28 Aug 2026 Form 4 Insider Report for COHERENT CORP. (COHR)

Reporting relationship: Chief Accounting Officer
Issuer ticker: COHR
Reported as of: 28 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 01 Sep 2026, 21:08:09 UTC
Prior SEC filing: 03 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Christopher M. Forrester, Attorney-in-Fact

Key filing fact

Ilaria Mocciaro filed Form 4 for COHERENT CORP. (COHR) on 01 Sep 2026.

Key facts

This page summarizes Ilaria Mocciaro's Form 4 filing for COHERENT CORP. (COHR).
4 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 01 Sep 2026, 21:08.

Change

Previous filing in this sequence was filed on 03 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001691463 Primary reporting owner

Mocciaro Ilaria

Relationship: Chief Accounting Officer
Address: C/O COHERENT CORP., 375 SAXONBURG BOULEVARD, SAXONBURG
Signature: /s/ Christopher M. Forrester, Attorney-in-Fact
Signature date: 01 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

COHR transaction

Common Stock

Award

Transaction value
Shares: +1,612
Change %: +7.2%
Price: $0.000000^*
Shares after: 23,879
Date: 28 Aug 2026
Ownership: Direct
Footnotes: F1

COHR transaction

Common Stock

Award

Transaction value
Shares: +2,449
Change %: +10%
Price: $0.000000^*
Shares after: 26,328
Date: 28 Aug 2026
Ownership: Direct
Footnotes: F2

COHR transaction

Common Stock

Tax liability

Transaction value
Shares: -2,174
Change %: -8.3%
Price: $295.39^*
Shares after: 24,154
Date: 28 Aug 2026
Ownership: Direct
Footnotes: F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

COHR transaction Derivative

Deferred Performance Stock Units

Award

Transaction value
Shares: +2,335
Change %
Price
Shares after: 2,335
Date: 28 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,335
Exercise price
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

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.

Footnote F2

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.

Footnote F3

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.

Footnote F4

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.