MTSI Form 144: Insider Proposed Sale of 45,986 Shares ($5.97M)

MACOM Technology Solutions Holdings, Inc. (MTSI) Form 144 notice reports proposed and recent sales of common stock by an insider.

Rhea-AI Filing Summary

MACOM Technology Solutions Holdings, Inc. (MTSI) Form 144 notice reports proposed and recent sales of common stock by an insider. The filing lists a proposed sale of 45,986 shares through The Charles Schwab Corporation on 09/09/2025 with an aggregate market value of $5,968,522.00. Acquisition details show these were founder shares acquired on 06/30/2009. The filing also discloses sales in the prior three months by Susan Ocampo totaling 116,470 shares for gross proceeds of $15,307,306.00 across transactions on 09/05/2025 and 09/08/2025. Outstanding shares are listed as 74,471,281, allowing readers to gauge the size of these transactions versus total float.

Insights

Securities Analyst

TL;DR: Insider has sold and proposes additional sale of common shares; sizes are modest relative to shares outstanding.

The filing documents an insider sale program: a proposed sale of 45,986 shares valued at about $5.97 million and prior sales of 116,470 shares for $15.31 million in early September 2025. Compared with the reported 74.47 million shares outstanding, the transactions represent a small percentage of total equity, suggesting limited direct dilution or market impact. Investors typically view such notices as liquidity events rather than signals of company-specific operational issues; however, the concentration of recent sales by the same individual can warrant monitoring alongside other disclosure.

Corporate Governance Expert

TL;DR: The Form 144 follows Rule 144 disclosure for resale of founder shares; procedural representation included.

The document confirms the seller represents no undisclosed material adverse information and references Rule 10b5-1 trading plan language. The securities were acquired as founder shares in 2009 and are being resold through a broker. From a governance perspective, the filing meets procedural disclosure requirements; stakeholders should note the timing and aggregation of insider sales but the filing itself contains no allegations, exemptions, or governance changes.

FAQ

What does the MTSI Form 144 disclose about proposed sales?

The notice lists a proposed sale of 45,986 common shares on 09/09/2025 via The Charles Schwab Corporation with an aggregate market value of $5,968,522.00.

Who sold shares in the past three months according to the filing?

Susan Ocampo sold 113,275 shares on 09/05/2025 for $14,885,388.00 and 3,195 shares on 09/08/2025 for $421,918.00.

How many shares outstanding does the filing report?

The filing reports 74,471,281 shares outstanding.

When were the securities originally acquired?

The securities to be sold were acquired as founder shares on 06/30/2009.

Does the filing state whether material nonpublic information exists?

The filer represents by signature that they do not know any material adverse information about the issuer that has not been publicly disclosed.

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Accepted by SEC EDGAR 09/09/2025 - 05:10 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	0001252243
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	(978) 656-2500
Name of Person for Whose Account the Securities are To Be Sold	OCAMPO SUSAN
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	10% Stockholder

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	The Charles Schwab Corporation 3000 Schwab Way Westlake TX 76262	45986	5968522.00	74471281	09/09/2025	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	06/30/2009	Founder Shares	Issuer			45986	06/03/2009	N/A

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
SUSAN OCAMPO 100 CHELMSFORD STREET LOWELL MA 01851	Common	09/05/2025	113275	14885388.00
SUSAN OCAMPO 100 CHELMSFORD STREET LOWELL MA 01851	Common	09/08/2025	3195	421918.00

144: Remarks and Signature

Remarks	Filing encompasses 3 Trust accounts in which Susan Ocampo is the TTEE
Date of Notice	09/09/2025
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	Susan O'Campo
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)