MACOM Tech (MTSI) officer granted 2,332 RSUs; owns 8,140 shares

MACOM Technology Solutions Holdings (MTSI) reported an insider equity award.

Rhea-AI Filing Summary

MACOM Technology Solutions Holdings (MTSI) reported an insider equity award. The company’s SVP, GC and Secretary acquired 2,332 shares of Common Stock on 10/28/2025 via a restricted stock unit grant at $0 under the 2021 Omnibus Incentive Plan. The RSUs vest in tranches of 777 shares on 10/28/2026, 777 shares on 10/28/2027, and 778 shares on 10/28/2028, contingent on continued service. Following the award, the reporting person beneficially owned 8,140 shares, held directly.

Insider Trade Summary

Grant/Award: 2,332 shares

Grant/Award 1 txn

Insider Roth Ambra R.

Role SVP, GC and Secretary

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	2,332	$0.00	$0.00

Holdings After Transaction: Common Stock — 8,140 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 777 shares on 10/28/2026, 777 shares on 10/28/2027 and 778 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 MACOM (MTSI) disclose in this Form 4?

An officer received 2,332 restricted stock units (RSUs) at $0 on 10/28/2025, increasing direct beneficial ownership to 8,140 shares.

Who is the reporting person in MTSI’s filing and what is their role?

An officer serving as SVP, GC and Secretary reported the transaction.

How do the 2,332 RSUs at MTSI vest?

They vest 777 shares on 10/28/2026, 777 shares on 10/28/2027, and 778 shares on 10/28/2028, subject to continued service.

What plan governs the RSU grant at MACOM (MTSI)?

The grant was made under the company’s 2021 Omnibus Incentive Plan.

What is the post-transaction share ownership reported?

Beneficial ownership was 8,140 shares, held directly, after the transaction.

Was cash paid for the RSUs in this MTSI transaction?

No. The RSUs were acquired at a price of $0 as part of equity compensation.

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

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Accepted by SEC EDGAR 10/30/2025 - 07:49 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^*

Roth Ambra R.

(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, GC and Secretary

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		2,332(1)	A	$0	8,140	D(1)

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 777 shares on 10/28/2026, 777 shares on 10/28/2027 and 778 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	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.