MTSI Form 144: Holder Sales Listed, Including Susan Ocampo

MTSI submitted a Form 144 notice disclosing proposed sales of Common stock by an affiliate holder.

Rhea-AI Filing Summary

MTSI submitted a Form 144 notice disclosing proposed sales of Common stock by an affiliate holder. The filing lists a 200,000-share Founder Shares line and multiple sale entries by Susan Ocampo with specific dates and share amounts between 02/03/2026 and 03/25/2026, including several 100,000 and 200,000-share transactions.

Insights

Equity Securities Specialist

Form 144 signals planned resale activity by an affiliate/insider, not a company issuance.

Form 144 is a notice of proposed sales under applicable resale rules; it lists specific dates and share counts for transactions by an identified holder, Susan Ocampo. The filing documents planned dispositions rather than company actions.

Cash‑flow recipients and pricing details are not listed in the excerpt; market impact depends on whether the transactions were executed and how they were routed.

Key Figures

Founder Shares listed: 200,000 shares Sale on 02/03/2026: 100,000 shares Sale on 03/02/2026: 200,000 shares +2 more

5 metrics

Founder Shares listed 200,000 shares Founder Shares line dated 11/21/2023

Sale on 02/03/2026 100,000 shares Susan Ocampo reported sale dated 02/03/2026

Sale on 03/02/2026 200,000 shares Susan Ocampo reported sale dated 03/02/2026

Sale on 02/25/2026 261,763 shares Susan Ocampo reported sale dated 02/25/2026

Sale on 03/25/2026 100,000 shares Susan Ocampo reported sale dated 03/25/2026

Key Terms

Form 144, Founder Shares, Securities To Be Sold

3 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Founder Shares market

"Securities To Be Sold Common 11/21/2023 Founder Shares"

Founder shares are the ownership stakes given to the people who start a company, often with extra voting power or protections compared with ordinary shares. For investors, they matter because founders’ control and incentives influence decisions about strategy, hiring, and whether the company sells or stays independent — like a family that keeps majority voting rights in a household decision. High founder ownership can mean stable leadership but also a risk that outside shareholders have less influence.

Securities To Be Sold regulatory

"144: Securities To Be Sold Common 11/21/2023"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the MTSI Form 144 filing disclose about sales?

The filing lists proposed resales of Common stock by an affiliate, including multiple dated entries by Susan Ocampo. It records specific sale dates and share counts between 02/03/2026 and 03/25/2026, such as several 100,000 and 200,000-share entries.

Who is the selling holder named in the Form 144 for MTSI?

The selling holder identified in the excerpt is Susan Ocampo, with an address listed and numerous dated sale entries. The filing shows many discrete transactions attributed to that holder across February and March 2026.

How many Founder Shares are shown in this Form 144 excerpt?

The excerpt shows a line labeled Founder Shares with 200,000 units and a date of 11/21/2023. That line appears under the securities-to-be-sold section and is shown as an issuer entry.

Do the Form 144 entries state the proceeds or pricing for the sales?

The provided excerpt lists share counts and dates but does not state aggregate proceeds or per‑share prices. The filing excerpt focuses on quantities and dates for proposed resales rather than transaction pricing or proceeds recipients.

Are the listed transactions confirmed executions or proposed sales under Form 144?

Form 144 filings disclose proposed resale activity required by resale rules; the entries in this excerpt are notices of planned or recent sales by the holder. The excerpt lists dates and share amounts but does not itself certify settlement or execution status.

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

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Accepted by SEC EDGAR 04/08/2026 - 05:08 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	Owner

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	200000	49044230	75011970	04/08/2026	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	11/21/2023	Founder Shares	Issuer			200000	11/21/2023	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 Box #88439 Honolulu HI 96830	Common	02/03/2026	100000	23029116
Susan Ocampo Box #88439 Honolulu HI 96830	Common	02/06/2026	100000	23584697
Susan Ocampo Box #88439 Honolulu HI 96830	Common	02/12/2026	57827	13897141
Susan Ocampo Box #88439 Honolulu HI 96830	Common	02/13/2026	42173	10136319
Susan Ocampo Box #88439 Honolulu HI 96830	Common	02/13/2026	19877	4870489
Susan Ocampo Box #88439 Honolulu HI 96830	Common	02/17/2026	80123	19655435
Susan Ocampo Box #88439 Honolulu HI 96830	Common	02/18/2026	3156	789003
Susan Ocampo Box #88439 Honolulu HI 96830	Common	02/24/2026	53509	13381379
Susan Ocampo Box #88439 Honolulu HI 96830	Common	02/25/2026	261763	66600315
Susan Ocampo Box #88439 Honolulu HI 96830	Common	03/02/2026	200000	50539095
Susan Ocampo Box #88439 Honolulu HI 96830	Common	03/25/2026	100000	24505253.65

144: Remarks and Signature

Remarks	Filing encompasses 1 Trust account in which Susan Ocampo is the TTEE. 4 WK average volume March 9th Wk 1: 6,501,577 March 16th Wk 2: 5,866,577 March 23rd Wk 3: 5,997,300 March 30th Wk 4: 5,604,900 Total = 23,970,354 / 4 = 5,992,588.5 shares per week average
Date of Notice	04/08/2026
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/ Susan Ocampo
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)