John Kober - 23 Oct 2026 Form 4 Insider Report for MACOM Technology Solutions Holdings, Inc. (MTSI)

Reporting relationship: Senior VP and CFO
Issuer ticker: MTSI
Reported as of: 23 Oct 2026
Net transaction value: -$242,988
SEC form: 4
Accepted by SEC: 27 Oct 2026, 17:07:47 UTC
Prior SEC filing: 23 Oct 2026
Next SEC filing: 30 Oct 2026
Source filing: View source filing
Reporting owner signature: /s/ Ambra R. Roth, Attorney-in-Fact

Filing notes and source

Key filing fact

John Kober filed Form 4 for MACOM Technology Solutions Holdings, Inc. (MTSI) on 27 Oct 2026.

Key facts

This page summarizes John Kober's Form 4 filing for MACOM Technology Solutions Holdings, Inc. (MTSI).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 27 Oct 2026, 17:07.

Change

Previous filing in this sequence was filed on 23 Oct 2026.
Current net transaction value: -$242,988.

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 0001338249 Primary reporting owner

Kober John

Relationship: Senior VP and CFO
Address: C/O MACOM TECHNOLOGY SOLUTIONS HOLDINGS, 100 CHELMSFORD STREET, LOWELL
Signature: /s/ Ambra R. Roth, Attorney-in-Fact
Signature date: 27 Oct 2026

Reported non-derivative transactions

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

MTSI transaction

Common Stock

Tax liability

Transaction value
Shares: -428
Change %: -1.2%
Price: $236.24^*
Shares after: 35,432
Date: 23 Oct 2026
Ownership: Direct
Footnotes: F1

MTSI transaction

Common Stock

Sale

Transaction value: -$242,988
Shares: -1,027
Change %: -2.9%
Price: $236.60
Shares after: 34,405
Date: 26 Oct 2026
Ownership: Direct
Footnotes: F2

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

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 2 footnotes

Footnote F1

Shares withheld by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting of restricted stock units on October 23, 2026.

Footnote F2

The shares were sold pursuant to a sales plan adopted by the Reporting Person on August 14, 2025 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.