MACOM SVP Dennehy sells 5,000 shares under plan

MACOM Technology Solutions Holdings, Inc. reports that SVP, Operations Robert Dennehy sold a total of 5,000 shares of common stock on October 2, 2025, in open-market or private transactions.

Rhea-AI Filing Summary

MACOM Technology Solutions Holdings, Inc. reports that SVP, Operations Robert Dennehy sold a total of 5,000 shares of common stock on October 2, 2025, in open-market or private transactions.

The reported prices are weighted averages of $127.15 and $127.61 per share, reflecting multiple trades between $126.50–$127.63, executed under a sales plan adopted February 28, 2025 and intended to comply with Rule 10b5-1; he now holds 10,680 shares directly.

Insights

Corporate Governance Analyst

Sale under an established 10b5-1 plan reduces direct holdings but follows a pre-arranged program.

The filings show two disposals totaling 5,000 shares executed on 10/02/2025 at weighted-average prices of $127.15 and $127.61. The reporting person identifies the transactions as made under a plan adopted on 02/28/2025, which typically provides an affirmative defense under Rule 10b5-1 when properly documented.

Key dependencies include the plan's terms and any blackout or trading-window constraints; these are not disclosed here. Investors may note the reduction in direct holdings to 11,599 and 10,680 shares as listed; the near-term materiality is limited unless combined with additional undisclosed transactions.

Insider Trade Summary

Net Seller: 5,000 shares

Net Sell 2 txns

Insider Dennehy Robert

Role SVP, Operations

Sold 5,000 shs ($636K)

Type	Security	Shares	Price	Value
Sale	Common Stock	4,081	$127.15	$519K
Sale	Common Stock	919	$127.61	$117K

Holdings After Transaction: Common Stock — 10,680 shares (Direct)

Footnotes (3)

1. F1. The shares were sold pursuant to a sales plan adopted by the Reporting Person on February 28, 2025 and intended to comply with Rule 10b5-1 under The Securities Exchange Act of 1934.
2. F2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $126.50 to $127.49. 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.
3. F3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $127.53 to $127.63. 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.

Key Figures

Shares sold: 5,000 shares Weighted average price 1: $127.15 per share Weighted average price 2: $127.61 per share +3 more

6 metrics

Shares sold 5,000 shares Total MACOM common shares sold by Robert Dennehy on October 2, 2025

Weighted average price 1 $127.15 per share One reported weighted average sale price per share for the October 2, 2025 transactions

Weighted average price 2 $127.61 per share Second reported weighted average sale price per share for the October 2, 2025 transactions

Price range 1 $126.50–$127.49 Price range for trades contributing to a reported weighted average sale price

Price range 2 $127.53–$127.63 Price range for additional trades contributing to a reported weighted average sale price

Post-transaction holdings 10,680 shares Direct common stock holdings of Robert Dennehy after the reported sales

Key Terms

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

4 terms

Rule 10b5-1 regulatory

"intended to comply with Rule 10b5-1 under The Securities Exchange Act"

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.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

sales plan financial

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

Securities Exchange Act of 1934 regulatory

"intended to comply with Rule 10b5-1 under The Securities Exchange Act of 1934"

FAQ

What did MACOM (MTSI) SVP Robert Dennehy disclose in this Form 4?

Robert Dennehy disclosed the sale of 5,000 MACOM common shares on October 2, 2025, in open-market or private transactions at weighted average prices near $127 per share, executed under a Rule 10b5-1 sales plan adopted February 28, 2025.

How many MACOM (MTSI) shares did Dennehy sell and at what prices?

Dennehy sold 5,000 common shares of MACOM on October 2, 2025. The reported prices are weighted averages of $127.15 and $127.61 per share, based on multiple trades executed in price ranges from $126.50 to $127.63.

Were Dennehy’s MACOM (MTSI) share sales made under a Rule 10b5-1 plan?

Yes. A footnote states the shares were sold pursuant to a sales plan adopted February 28, 2025, intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934, indicating the trades were pre-planned rather than discretionary.

What are Robert Dennehy’s remaining MACOM (MTSI) holdings after these sales?

After the reported transactions, Dennehy holds 10,680 shares of MACOM common stock directly. This post-transaction balance is explicitly reported as his canonical holding and reflects his remaining direct ownership position following the 5,000-share sale.

What transaction type and ownership nature are reported for MTSI in this filing?

The filing reports two non-derivative sales of common stock, coded as open-market or private transactions. The shares are shown as directly owned by Robert Dennehy, with no indication of trust or entity-level indirect ownership in the reported positions.

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Accepted by SEC EDGAR 10/06/2025 - 04:26 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^*

Dennehy Robert

(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, Operations

3. Date of Earliest Transaction (Month/Day/Year)
10/02/2025

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	10/02/2025		S(1)		4,081	D	$127.15(2)	11,599	D
Common Stock	10/02/2025		S(1)		919	D	$127.61(3)	10,680	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 February 28, 2025 and intended to comply with Rule 10b5-1 under The Securities Exchange Act of 1934.

2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $126.50 to $127.49. 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.

3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $127.53 to $127.63. 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.

	/s/ Ambra R. Roth, Attorney-in-Fact	10/06/2025
	** 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.