MTX (NYSE: MTX) files Form 144 listing brokered restricted stock tranches

Rhea-AI Filing Summary

MTX submitted a Form 144 notice to sell restricted common stock through a broker. The filing lists a broker-dealer, Fidelity Brokerage Services LLC, and multiple tranches of restricted stock tied to vesting dates with individual lot sizes such as 1,585 and 1,516 shares. The filing references an amount of 17,781 and a figure of 1,411,950.09 in the header; timing and exact disposition mechanics are tied to the listed vesting entries.

Insights

Securities Compliance Analyst

Form 144 notice lists proposed brokered sales of restricted shares tied to vesting events.

The filing is a regulatory notice of intended sale under resale rules; it names Fidelity Brokerage Services LLC as the broker-dealer and enumerates multiple restricted stock vesting lots with explicit share counts and dates. This form does not itself report completed trades.

Cash-flow treatment and exact sale timing are not detailed beyond the vesting entries, so subsequent transaction reports or trading confirmations will show execution details.

Key Figures

Header listed shares: 17,781 Header numeric value: 1,411,950.09 Header numeric value: 31,008,734 +3 more

6 metrics

Header listed shares 17,781 appears in filing header

Header numeric value 1,411,950.09 appears in filing header

Header numeric value 31,008,734 appears in filing header

Vesting lot example 1,585 shares Restricted Stock Vesting 01/25/2023

Vesting lot example 1,516 shares Restricted Stock Vesting 01/26/2023

Vesting lot example 1,631 shares Restricted Stock Vesting 01/24/2024

Key Terms

Form 144, Restricted Stock Vesting, Broker-Dealer (Fidelity Brokerage Services LLC)

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.

Restricted Stock Vesting financial

"Restricted Stock Vesting | Issuer | 1585 | 01/25/2023"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Broker-Dealer (Fidelity Brokerage Services LLC) market

"Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917"

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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	17781	1411950.09	31008734	05/06/2026	NYSE

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	01/25/2023	Restricted Stock Vesting	Issuer			1585	01/25/2023	Compensation
Common	01/26/2023	Restricted Stock Vesting	Issuer			1516	01/26/2023	Compensation
Common	01/24/2024	Restricted Stock Vesting	Issuer			1631	01/24/2024	Compensation
Common	01/25/2024	Restricted Stock Vesting	Issuer			1584	01/25/2024	Compensation
Common	01/26/2024	Restricted Stock Vesting	Issuer			1516	01/26/2024	Compensation
Common	01/23/2025	Restricted Stock Vesting	Issuer			1688	01/23/2025	Compensation
Common	01/24/2025	Restricted Stock Vesting	Issuer			1724	01/24/2025	Compensation
Common	01/25/2025	Restricted Stock Vesting	Issuer			1584	01/25/2025	Compensation
Common	01/21/2026	Restricted Stock Vesting	Issuer			1470	01/21/2026	Compensation
Common	01/23/2026	Restricted Stock Vesting	Issuer			1759	01/23/2026	Compensation
Common	01/24/2026	Restricted Stock Vesting	Issuer			1724	01/24/2026	Compensation

* 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

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 MTX's Form 144 filing mean?

It registers an intended sale by a holder through a broker-dealer. The filing lists proposed brokered sales and specific restricted stock lots by vesting date, but it does not confirm completed trades or proceeds.

Who is the broker handling the proposed sales in MTX's Form 144?

The filing names Fidelity Brokerage Services LLC at the listed address. The broker is the intermediary noted for executing the proposed resale transactions.

How many shares are listed in MTX's Form 144 example entries?

Individual vesting lots show counts such as 1,585 and 1,516 shares tied to specific vesting dates. The document lists multiple similar lot sizes across several dates.

Does Form 144 mean the shares have been sold?

No. Form 144 is a notice of intent to sell restricted or control securities; it does not indicate that the sales have occurred. Execution details would appear in subsequent transaction filings.

Are proceeds or sale prices disclosed in this Form 144 excerpt?

The excerpt includes a numeric header value of 1,411,950.09, but it does not present explicit sale prices or confirmed proceeds for individual lots in the visible text.