MACOM general counsel Ambra R. Roth sells 653 shares

The SVP, GC and Secretary's reported sale followed a sales plan adopted May 21, 2026, intended to comply with Rule 10b5-1.

Rhea-AI Filing Summary

MACOM Technology Solutions Holdings, Inc. (MTSI) reports that Ambra R. Roth, SVP, GC and Secretary, sold 653 shares of common stock at $300 per share on October 1, 2026. The sale was made pursuant to a sales plan adopted May 21, 2026 and intended to comply with Rule 10b5-1. Ambra R. Roth held 9,184 shares directly after the transaction.

Insider Trade Summary 10b5-1

Net Seller: 653 shares

Net Sell 1 txn

Insider Roth Ambra R.

Role SVP, GC and Secretary

Sold 653 shs ($196K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	653	$300.00	$196K

Holdings After Transaction: Common Stock — 9,184 shares (Direct)

Footnotes (1)

1. F1. The shares were sold pursuant to a sales plan adopted by the Reporting Person on May 21, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

Key Figures

Shares sold: 653 shares Sale price per share: $300 per share Direct shares held after transaction: 9,184 shares +1 more

4 metrics

Shares sold 653 shares Sale on October 1, 2026

Sale price per share $300 per share Sale on October 1, 2026

Direct shares held after transaction 9,184 shares After the October 1, 2026 sale

Sales plan adoption date May 21, 2026 Plan intended to comply with Rule 10b5-1

Key Terms

sales plan, Rule 10b5-1, Securities Exchange Act of 1934

3 terms

sales plan financial

"sold pursuant to a sales plan adopted by the Reporting Person"

Rule 10b5-1 regulatory

"intended to comply with Rule 10b5-1"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

Securities Exchange Act of 1934 regulatory

"under the Securities Exchange Act of 1934"

FAQ

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How many MTSI shares did Ambra R. Roth sell, and at what price?

Ambra R. Roth, SVP, GC and Secretary, sold 653 shares of MACOM common stock at $300 per share on October 1, 2026. The sale was made pursuant to a sales plan adopted May 21, 2026 and intended to comply with Rule 10b5-1.

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

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 10/05/2026 - 04:41 PM Accepted by SEC EDGAR 10/05/2026 - 04:41 PM 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).

X

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 MASSACHUSETTS 01851

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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	10/01/2026		S(1)		653	D	$300	9,184	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. The shares were sold pursuant to a sales plan adopted by the Reporting Person on May 21, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

	/s/ Ambra R. Roth	10/05/2026
	** 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.
* Form 4: SEC 1474 (03-26)