[Form 4] MACOM Technology Solutions Holdings, Inc Insider Trading Activity

Rhea-AI Filing Summary

Susan Ocampo, a director of MACOM Technology Solutions Holdings, Inc. (MTSI), reported multiple sales of Company common stock between 09/05/2025 and 09/09/2025. The Form 4 shows dispositions on several dates totaling 162,456 shares sold at weighted-average prices in a range around $130.50–$132.56. Beneficial ownership following the reported transactions is shown in tiers: trusts for children and family vehicles, with reported indirect holdings including 4,415,331 shares by Ocampo Family Trusts, 1,500,000 shares by a GRAT, and a reported post-sale position of 3,956,165 shares on 09/09/2025. The reporting person is a trustee of the listed family trusts.

Positive

• Substantial continuing indirect ownership: Ocampo Family Trusts and a GRAT together hold millions of shares (e.g., 4,415,331 by family trusts and 1,500,000 by a GRAT).
• Detailed disclosure: Weighted-average sale prices and ranges are provided and the filer offers to supply per-trade allocation on request, enhancing transparency.

Negative

• Insider sales material in size: The reporting person sold a total of 162,456 shares across 09/05/2025–09/09/2025 at prices roughly between $130.50 and $132.56.
• Reduction in reported beneficial stake: The Form 4 shows a listed post-sale beneficial ownership figure of 3,956,165 shares as of 09/09/2025.

Insights

Financial Analyst

TL;DR Director sold 162,456 shares over several days at ~ $130–$132; still holds multi-million-share indirect stake via trusts.

These filings record routine director dispositions rather than option exercises or derivative trades. The aggregate sale size (162,456 shares) and weighted-average prices are explicitly disclosed. Post-transaction beneficial ownership remains concentrated in family trusts and a GRAT, indicating continued substantial indirect ownership. For investors, the filing documents liquidity events by a significant insider but does not disclose any company-specific rationale for the sales.

Corporate Governance Expert

TL;DR Multiple open-market sales by a director, but control retained through trusts and GRAT.

The Form 4 shows the reporting person acting as trustee for multiple family trusts and a GRAT, with several tranche sales reported at weighted-average prices. While insider sales can attract scrutiny, the filing also documents large continuing indirect holdings (millions of shares) that preserve voting/economic exposure within family entities. The disclosure is detailed on price ranges and allocations among trusts, meeting SEC reporting standards for Section 16 insiders.

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
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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^*

OCAMPO SUSAN

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

3. Date of Earliest Transaction (Month/Day/Year)
09/05/2025

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	09/05/2025		S		17,619	D	$130.82(1)	4,101,002(2)	I	By trusts for children(3)
Common Stock	09/05/2025		S		81,356	D	$131.37(4)	4,019,646(5)	I	By trusts for children(3)
Common Stock	09/05/2025		S		14,300	D	$132.36(6)	4,005,346(7)	I	By trusts for children(3)
Common Stock	09/08/2025		S		3,195	D	$132.06(8)	4,002,151(9)	I	By trusts for children(3)
Common Stock	09/09/2025		S		45,986	D	$131.12(10)	3,956,165(11)	I	By trusts for children(3)
Common Stock								4,415,331	I	By Ocampo Family Trusts(3)
Common Stock								1,500,000	I	By GRAT(3)
Common Stock								1,623	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 price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $130.50 to $130.99. The Reporting Person undertakes to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

2. 1,118,670 of such shares are held by two trusts for the Reporting Person's son; 1,491,166 of such shares are held by two trusts for the Reporting Person's daughter; and 1,491,166 of such shares are held by two trusts for the Reporting Person's son.

3. The Reporting Person is a trustee of two Ocampo Family Trusts, the GRAT and each of the following six trusts for the benefit of her children: (i) two trusts for her son; (ii) two trusts for her daughter; and (iii) two trusts for her son.

4. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $131.00 to $131.95. The Reporting Person undertakes to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

5. 1,091,550 of such shares are held by two trusts for the Reporting Person's son; 1,464,048 of such shares are held by two trusts for the Reporting Person's daughter; and 1,464,048 of such shares are held by two trusts for the Reporting Person's son.

6. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $132.03 to $132.56. The Reporting Person undertakes to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

7. 1,086,785 of such shares are held by two trusts for the Reporting Person's son; 1,459,280 of such shares are held by two trusts for the Reporting Person's daughter; and 1,459,281 of such shares are held by two trusts for the Reporting Person's son.

8. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $132.00 to $132.21. The Reporting Person undertakes to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

9. 1,085,720 of such shares are held by two trusts for the Reporting Person's son; 1,458,215 of such shares are held by two trusts for the Reporting Person's daughter; and 1,458,216 of such shares are held by two trusts for the Reporting Person's son.

10. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $131.00 to $131.43. The Reporting Person undertakes to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

11. 1,070,391 of such shares are held by two trusts for the Reporting Person's son; 1,442,887 of such shares are held by two trusts for the Reporting Person's daughter; and 1,442,887 of such shares are held by two trusts for the Reporting Person's son.

	/s/ Ambra R. Roth, Attorney-in-Fact	09/09/2025
	** 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.

FAQ

What shares did Susan Ocampo sell according to the MTSI Form 4?

The filing reports sales of common stock totaling 162,456 shares across 09/05/2025–09/09/2025 at weighted-average prices in the range of $130.50–$132.56.

How much beneficial ownership does the filing show after the reported MTSI sales?

The Form 4 shows a reported post-transaction beneficial ownership of 3,956,165 shares as of 09/09/2025 and indirect holdings of 4,415,331 shares by Ocampo Family Trusts plus 1,500,000 shares by a GRAT.

What is Susan Ocampo’s relationship to MTSI in the Form 4?

The Form 4 identifies Susan Ocampo as a Director of MACOM Technology Solutions Holdings, Inc.

Are the sale prices exact or weighted averages in the MTSI Form 4?

The filing states the prices reported are weighted average prices and provides price ranges for the multiple transactions, with an offer to supply per-trade allocation on request.

Were any derivative transactions reported on this Form 4 for MTSI?

No derivative securities transactions are reported in Table II; only non-derivative common stock dispositions are listed.