Major MTSI (NASDAQ: MTSI) holder files to sell 100,000 shares

Rhea-AI Filing Summary

MTSI shareholder Susan Ocampo filed a Form 144 notice to sell 100,000 common shares, with an aggregate market value of 23,029,116. The issuer had 75,010,891 common shares outstanding, and the planned sale is listed for 02/03/2026 on NASDAQ through The Charles Schwab Corporation.

The 100,000 shares to be sold were acquired on 11/21/2023 as “Founder Shares” from the issuer. Over the prior three months, Ocampo reported multiple open-market sales, including 100,000 common shares on 11/06/2025 for gross proceeds of 16,007,495.65 and additional blocks in November and December 2025.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	100000	23029116	75010891	02/03/2026	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			100000	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	11/06/2025	100000	16007495.65
Susan Ocampo Box #88439 Honolulu HI 96830	Common	11/07/2025	56711	9641220.99
Susan Ocampo Box #88439 Honolulu HI 96830	Common	11/10/2025	43289	7422613.94
Susan Ocampo Box #88439 Honolulu HI 96830	Common	12/02/2025	4171	750780.00
Susan Ocampo Box #88439 Honolulu HI 96830	Common	12/03/2025	95829	17255136.70
Susan Ocampo Box #88439 Honolulu HI 96830	Common	12/04/2025	2291	435290
Susan Ocampo Box #88439 Honolulu HI 96830	Common	12/05/2025	76642	14569250
Susan Ocampo Box #88439 Honolulu HI 96830	Common	12/09/2025	121067	23011418

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Form 144 filing for MTSI disclose about planned share sales?

The Form 144 shows shareholder Susan Ocampo plans to sell 100,000 MTSI common shares. The filing lists an aggregate market value of 23,029,116 and notes trading is expected on NASDAQ, giving investors transparency into a sizable planned disposition of existing shares.

When and where are the 100,000 MTSI shares in the Form 144 expected to be sold?

The filing lists an approximate sale date of 02/03/2026 for 100,000 MTSI common shares. It identifies NASDAQ as the securities exchange and The Charles Schwab Corporation as the broker, outlining the basic trading venue and timing for the planned transaction.

How were the 100,000 MTSI shares in the Form 144 originally acquired?

The 100,000 MTSI common shares were acquired on 11/21/2023 as “Founder Shares” from the issuer. The table shows the same date for acquisition and payment, with the nature of payment marked as N/A, indicating a non-cash or special consideration structure.

What recent MTSI stock sales by the same shareholder are reported in the Form 144?

The filing lists several recent sales by Susan Ocampo over the past three months. These include 100,000 common shares sold on 11/06/2025 for gross proceeds of 16,007,495.65, plus multiple additional blocks sold on later dates in November and December 2025.

How many MTSI shares were outstanding relative to the planned 100,000-share sale?

The Form 144 states that 75,010,891 MTSI common shares were outstanding. The notice covers a planned sale of 100,000 shares, providing a baseline for understanding the scale of this planned transaction versus the company’s total share count.

Which broker is handling the planned MTSI share sale in the Form 144?

The notice identifies The Charles Schwab Corporation, located at 3000 Schwab Way, Westlake, Texas, as the broker. This firm is listed as handling the planned sale of 100,000 MTSI common shares on NASDAQ, according to the Form 144 securities information table.