Director John Ritchie granted 776 RSUs at MACOM Technology Solutions (MTSI)

Rhea-AI Filing Summary

Ritchie John reported acquisition or exercise transactions in this Form 4 filing.

MACOM Technology Solutions director John Ritchie received an equity award in the form of restricted stock units. He was granted 776 RSUs, each representing one share of common stock, at no purchase price. The RSUs vest in full on March 6, 2027, if he remains in continuous service. Following this grant, he directly holds 9,466 shares, including this award.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Ritchie John

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	776	$0.00	--

Holdings After Transaction: Common Stock — 9,466 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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^*

Ritchie John

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
03/06/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/06/2026		A		776(1)	A	$0	9,466	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 in full on March 6, 2027, provided that the Reporting Person remains in continuous service with the Issuer through the vesting date.

	/s/ Ambra R. Roth, Attorney-in-Fact	03/10/2026
	** 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.

FAQ

What insider transaction did MACOM Technology Solutions (MTSI) report for John Ritchie?

MACOM reported that director John Ritchie received an equity grant of 776 restricted stock units. These RSUs are a form of stock-based compensation, not an open-market purchase or sale, and increase his total direct holdings to 9,466 shares of common stock.

How many MACOM (MTSI) shares are covered by John Ritchie’s new RSU award?

The award covers 776 restricted stock units, each equivalent to one share of MACOM common stock. When these RSUs vest and settle, they can deliver 776 shares, adding to his existing position disclosed as 9,466 shares following the transaction.

When do John Ritchie’s MACOM (MTSI) RSUs vest and what is the condition?

The RSUs vest in full on March 6, 2027. Vesting is contingent on John Ritchie remaining in continuous service with MACOM through that date, aligning the award with his long-term tenure and ongoing role at the company.

Was cash paid for John Ritchie’s MACOM (MTSI) RSU grant?

No cash was paid for the RSU grant; the reported price per share is 0.0000. This indicates the award is compensation under MACOM’s 2021 Omnibus Incentive Plan rather than a transaction where the director bought shares on the open market.

What incentive plan governs John Ritchie’s RSU award at MACOM (MTSI)?

The RSU grant was made under MACOM’s 2021 Omnibus Incentive Plan. This plan allows the company to grant equity-based awards like restricted stock units to align directors’ and employees’ compensation with the company’s long-term performance and shareholder interests.