Susan Ocampo sells large blocks of MTSI shares (MTSI)

Rhea-AI Filing Summary

Registrant: MTSI reporting Form 144 sale notices for ordinary Common shares. The excerpt lists multiple dispositions by Susan Ocampo between 02/03/2026 and 04/15/2026, including individual sales such as 200,000 shares on 03/02/2026 and 200,000 shares on 04/08/2026. The filings show per‑trade share counts and proceeds figures for each reported sale.

Insights

Insider Transactions Analyst

Large, repeated open‑market dispositions by a single reporting person are documented.

The excerpt lists multiple sales attributed to Susan Ocampo across February–April 2026 with per‑trade share counts and dollar proceeds. Each row pairs a date, share quantity, and proceeds figure, which together show substantial realized amounts on several dates.

These transactions are reported under Form 144 captioning; timing and motive are not provided in the excerpt, and cash‑flow recipients are the selling holder(s) as listed.

Key Figures

Sale on 03/02/2026: 200,000 shares Proceeds on 03/02/2026: $50,539,095 Sale on 04/08/2026: 200,000 shares +4 more

7 metrics

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

Proceeds on 03/02/2026 $50,539,095 Proceeds paired with 200,000 shares sale

Sale on 04/08/2026 200,000 shares 04/08/2026 reported sale

Proceeds on 04/08/2026 $49,044,230 Proceeds paired with 200,000 shares sale

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

Proceeds on 02/25/2026 $66,600,315 Proceeds paired with 261,763 shares sale

Multiple smaller sales e.g., 57,827; 42,173; 61,898 shares Various dates Feb–Apr 2026 listed

Key Terms

Form 144, Acquired from issuer in private transaction, Securities Sold During The Past 3 Months

3 terms

Form 144 regulatory

"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.

Acquired from issuer in private transaction financial

"06/30/2009 | Acquired from issuer in private transaction"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

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

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Accepted by SEC EDGAR 04/16/2026 - 04:37 PM Learn about SEC filing dates

FAQ

What does the MTSI Form 144 excerpt show about recent insider sales?

It lists multiple sales by Susan Ocampo between 02/03/2026 and 04/15/2026. Each row shows the trade date, number of shares sold, and the reported proceeds figure for that transaction.

How many shares did Susan Ocampo sell on 03/02/2026 according to the excerpt?

The excerpt reports a sale of 200,000 shares on 03/02/2026 with proceeds listed as $50,539,095. The line shows the trade date, share count, and proceeds figure for that transaction.

Are proceeds and per‑trade details provided in the MTSI Form 144 excerpt?

Yes. Each sale row pairs a trade date with a share quantity and a numeric proceeds entry (for example, 04/08/2026: 200,000 shares — $49,044,230), allowing inspection of per‑trade realized amounts.

Does the excerpt state why the insider sold MTSI shares?

No. The provided lines show transaction dates, share counts, and proceeds but do not include reasons or contextual motive. The excerpt does not state whether sales were pursuant to a plan or for other purposes.

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	Goldman Sachs & Co. LLC 200 West Street New York NY 10282	100000	26142000	74911970	04/16/2026	NASD

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	Acquired from issuer in private transaction	The Issuer			100000	06/30/2009	None

* 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	02/03/2026	100000	23029116
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	02/06/2026	100000	23584697
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	02/12/2026	57827	13897141
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	02/13/2026	42173	10136319
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	02/13/2026	19877	4870489
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	02/17/2026	80123	19655435
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	02/11/2026	3156	789003
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	02/09/2026	53509	13381379
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	02/25/2026	261763	66600315
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	02/18/2026	3156	789003
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	02/24/2026	53509	13381379
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	03/02/2026	200000	50539095
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	03/25/2026	100000	24505253.65
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	04/08/2026	200000	49044230
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	04/10/2026	15221	3928692.31
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	04/13/2026	100000	26190830.39
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	04/14/2026	61898	16356261.77
Susan Ocampo 100 Chelmsford Street Lowell MA 01851	Common	04/15/2026	76218	19893766.89

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)