MTSI insider granted 2,005 RSUs; holdings now 17,812 shares

MACOM Technology Solutions Holdings (MTSI) reported a Form 4 for its SVP, Advanced Semiconductor, showing an acquisition of 2,005 RSUs at $0 on 10/28/2025 under the company’s 2021 Omnibus Incentive Plan.

Rhea-AI Filing Summary

MACOM Technology Solutions Holdings (MTSI) reported a Form 4 for its SVP, Advanced Semiconductor, showing an acquisition of 2,005 RSUs at $0 on 10/28/2025 under the company’s 2021 Omnibus Incentive Plan. Each RSU converts into one share of common stock. The award vests as 668 shares on 10/28/2026, 668 shares on 10/28/2027, and 669 shares on 10/28/2028, contingent on continuous service. Following the grant, the reporting person beneficially owned 17,812 shares, held directly.

Insider Trade Summary

Grant/Award: 2,005 shares

Grant/Award 1 txn

Insider Struble Wayne Mack

Role SVP, Advanced Semiconductor

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	2,005	$0.00	$0.00

Holdings After Transaction: Common Stock — 17,812 shares (Direct)

Footnotes (1)

1. F1. Represents restricted stock units ("RSUs") granted to the Reporting Person under the Issuer's 2021 Omnibus Incentive Plan. Each RSU represents the contingent right to receive one share of Common Stock. The RSUs vest as to 668 shares on 10/28/2026, 668 shares on 10/28/2027 and 669 shares on 10/28/2028, provided that the Reporting Person remains in continuous service with the Issuer through each such vesting date.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did MTSI disclose in this Form 4?

An acquisition of 2,005 RSUs at $0 by the SVP, Advanced Semiconductor on 10/28/2025.

What is the vesting schedule for the 2,005 RSUs at MTSI?

The RSUs vest 668 on 10/28/2026, 668 on 10/28/2027, and 669 on 10/28/2028, subject to continuous service.

How many MTSI shares are beneficially owned after this transaction?

The reporting person beneficially owned 17,812 shares following the transaction.

What plan governs these RSUs at MTSI?

The award was granted under the 2021 Omnibus Incentive Plan.

What is the reporting person’s role at MTSI?

The reporting person is SVP, Advanced Semiconductor.

What is the ownership form of these securities?

The securities are held directly (D).

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 10/30/2025 - 07:46 PM EDT Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Struble Wayne Mack

(Last) (First) (Middle)

C/O MACOM TECHNOLOGY SOLUTIONS HOLDINGS

100 CHELMSFORD STREET

(Street)

LOWELL MA 01851

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MACOM Technology Solutions Holdings, Inc. [ MTSI ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Advanced Semiconductor

3. Date of Earliest Transaction (Month/Day/Year)
10/28/2025

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/28/2025		A		2,005(1)	A	$0	17,812	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents restricted stock units ("RSUs") granted to the Reporting Person under the Issuer's 2021 Omnibus Incentive Plan. Each RSU represents the contingent right to receive one share of Common Stock. The RSUs vest as to 668 shares on 10/28/2026, 668 shares on 10/28/2027 and 669 shares on 10/28/2028, provided that the Reporting Person remains in continuous service with the Issuer through each such vesting date.

	/s/ Ambra R. Roth, Attorney-in-Fact	10/30/2025
	** Signature of Reporting Person	Date
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.