MACOM (NASDAQ: MTSI) filer plans Rule 144 sale of 252 ESPP shares

Rhea-AI Filing Summary

MACOM Technology Solutions Holdings, Inc. (MTSI) is the issuer of common stock for which a Rule 144 notice has been filed by Robert Dennehy. The notice covers a proposed sale of 252 shares of MACOM common stock. These shares were acquired on May 10, 2024 through an Employee Stock Purchase Plan.

Key Figures

Shares to be sold: 252 shares of common stock Acquisition date: May 10, 2024 Issuer phone number: 9786562500

3 metrics

Shares to be sold 252 shares of common stock Proposed sale under Rule 144 by Robert Dennehy

Acquisition date May 10, 2024 Date the 252 shares were acquired under an Employee Stock Purchase Plan

Issuer phone number 9786562500 Contact phone number for MACOM Technology Solutions Holdings, Inc.

Key Terms

Rule 144, Employee Stock Purchase Plan, broker-dealer

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Employee Stock Purchase Plan financial

"Common | 05/10/2024 | Employee Stock Purchase Plan | Issuer"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

broker-dealer financial

"Morgan Stanley Smith Barney LLC Executive Financial Services"

A broker-dealer is a licensed firm or individual that both executes trades on behalf of clients (acting as a broker) and buys or sells securities for its own account (acting as a dealer). Investors care because broker-dealers provide the plumbing of markets — they place orders, hold or move cash and securities, offer research or advice, and their stability and fees directly affect trade execution, costs, and the safety of client funds; think of them as a combined travel agent and taxi for your investments.

FAQ

What does the Form 144 filing involving MTSI disclose?

The filing discloses that Robert Dennehy has filed a notice under Rule 144 for a proposed sale of MACOM Technology Solutions Holdings, Inc. common stock. It provides details on the number of shares, how they were acquired, and relevant dates for the planned sale.

How many MTSI shares are covered by Robert Dennehy’s Form 144?

The Form 144 notice covers a proposed sale of 252 shares of MACOM Technology Solutions Holdings, Inc. common stock. This figure appears in the section describing the securities to be sold.

How and when were the MTSI shares in this Form 144 acquired?

The 252 shares of MACOM Technology Solutions Holdings, Inc. common stock were acquired on May 10, 2024 under an Employee Stock Purchase Plan. The filing identifies the issuer as the source of these shares.

Which rule governs the proposed sale in this MTSI Form 144?

The proposed sale is made under Rule 144. The filing references the definition of “person” in paragraph (a) of Rule 144 and explains that information must be provided for the person for whose account the securities are to be sold and related persons.

Who is the person for whose account the MTSI securities are to be sold?

The person for whose account the securities are to be sold is Robert Dennehy. The filing notes that information is required for him and for all other persons whose sales must be aggregated under paragraph (e) of Rule 144.

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

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Available on EDGAR 08/28/2026 - 04:24 PM Accepted by SEC EDGAR 08/28/2026 - 04:23 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001588004
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	MACOM Technology Solutions Holdings, Inc.
SEC File Number	001-35451
Address of Issuer	100 Chelmsford Street Lowell MASSACHUSETTS 01851
Phone	9786562500
Name of Person for Whose Account the Securities are To Be Sold	ROBERT DENNEHY
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	252	69841.80	76370931	08/28/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/10/2024	Employee Stock Purchase Plan	Issuer			252	05/10/2024	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/28/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/29/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Robert Dennehy
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)