MTSI Form 144: Proposed common sale via Morgan Stanley

The excerpt is a Form 144 entry that lists a proposed sale of Common stock through Morgan Stanley Smith Barney LLC.

Rhea-AI Filing Summary

The excerpt is a Form 144 entry that lists a proposed sale of Common stock through Morgan Stanley Smith Barney LLC. The table row in the excerpt shows the numeric values 5,646,394.80, 76,295,774 and the date 05/18/2026, plus references to Performance Stock Units and Restricted Stock Units.

Insights

Securities Compliance Analyst

Form 144 lists a proposed brokered sale of common shares by an affiliate.

The excerpt shows a broker-dealer listed as Morgan Stanley Smith Barney LLC and references Performance Stock Units and Restricted Stock Units. The numeric entries 5,646,394.80 and 76,295,774 appear in the same row and a date of 05/18/2026 is shown.

Timing and proceeds treatment are not stated in the excerpt; subsequent filings or full Form 144 text would clarify the exact shares and sale mechanics.

Key Figures

Table numeric entry: 5,646,394.80 Table numeric entry: 76,295,774 Form date: 05/18/2026 +2 more

5 metrics

Table numeric entry 5,646,394.80 Appears in the same table row as the broker-dealer and date 05/18/2026

Table numeric entry 76,295,774 Appears in the same table row as the broker-dealer and date 05/18/2026

Form date 05/18/2026 Date shown in the excerpt row for the Common security

Performance Stock Units 13,843 Performance Stock Units row dated 11/09/2023 in the excerpt

Restricted Stock Units 1,190 Restricted Stock Units row dated 10/27/2023 in the excerpt

Key Terms

Performance Stock Units, Restricted Stock Units, Form 144

3 terms

Performance Stock Units financial

"Performance Stock Units | Issuer | 13,843 | 11/09/2023"

Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.

Restricted Stock Units financial

"Restricted Stock Units | Issuer | 1,190 | 10/27/2023"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Form 144 regulatory

"Filer Information ... 144: Securities To Be Sold"

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.

FAQ

What does the MTSI Form 144 excerpt show?

It shows a proposed sale of Common stock through Morgan Stanley Smith Barney LLC. The excerpt lists numeric entries 5,646,394.80, 76,295,774 and date 05/18/2026 and references Performance Stock Units and Restricted Stock Units.

Does this excerpt state how many shares are being sold for MTSI?

No single explicit ‘shares offered’ line is present in the excerpt. The table row contains the numbers 5,646,394.80 and 76,295,774 and the date 05/18/2026; the precise share quantity for sale is not expressly labeled here.

Who is the broker-dealer listed in the Form 144 excerpt for MTSI?

The broker-dealer is listed as Morgan Stanley Smith Barney LLC with an address at 1 New York Plaza, 8th Floor, New York, NY. That broker-dealer name appears adjacent to the row describing the Common security.

Are Performance Stock Units or RSUs mentioned in the filing excerpt?

Yes. The excerpt explicitly references Performance Stock Units dated 11/09/2023 with a count of 13,843 and Restricted Stock Units dated 10/27/2023 with a count of 1,190, as shown in the table rows.

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Accepted by SEC EDGAR 05/18/2026 - 04:33 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	0001338249
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	John F. Kober Ill
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	15033	5646394.80	76295774	05/18/2026	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	11/09/2023	Performance Stock Units	Issuer			13843	11/09/2023	N/A
Common	10/27/2023	Restricted Stock Units	Issuer			1190	10/27/2023	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

Nothing to Report

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of performance stock units during the period of 11/9/2023 through 11/6/2025.
Date of Notice	05/18/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	08/14/2025
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	/s/ John F. Kober Ill
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)