Materion (MTRN) Form 144: 1,155 Shares From Restricted Stock Vesting

Rhea-AI Filing Summary

Materion Corporation (MTRN) filed a Form 144 reporting a proposed sale of 1,155 common shares with an aggregate market value of $121,798.35. The sale is to be handled through Fidelity Brokerage Services LLC (900 Salem Street, Smithfield, RI 02917) and lists the NYSE as the securities exchange and an approximate sale date of 08/11/2025. The filing states total shares outstanding of 20,726,917.

The securities were acquired on 05/07/2025 by restricted stock vesting and the payment is described as compensation. The filer reports Nothing to Report for securities sold during the past three months and includes the standard representation that the seller is not aware of undisclosed material adverse information about the issuer.

Positive

• Disclosure compliance: Form 144 filed with broker, share count, aggregate value, acquisition method, and approximate sale date provided
• No recent sales reported: "Nothing to Report" for securities sold during the past three months

Negative

• None.

Insights

Financial Analyst

TL;DR: Routine Form 144 reporting a planned sale of recently vested restricted shares; reported values and dates are explicit in the filing.

The filing documents a proposed sale of 1,155 common shares valued at $121,798.35 and an approximate execution date of 08/11/2025. The shares were acquired by restricted stock vesting on 05/07/2025 and were paid as compensation. From a financial-materiality perspective, this disclosure provides transparency about insider liquidity but does not on its face change the company's reported capital structure beyond the stated outstanding share count of 20,726,917. No other sales by the filer in the prior three months were reported.

Corporate Governance Expert

TL;DR: The Form 144 follows disclosure requirements under Rule 144 and includes standard seller representations; there are no atypical governance flags.

The notice identifies the broker (Fidelity Brokerage Services LLC), class of securities (common), acquisition method (restricted stock vesting), and payment nature (compensation). The filer affirms they do not possess undisclosed material adverse information and reports no sales in the prior three months. These elements are consistent with routine insider reporting and demonstrate procedural compliance with Rule 144 notice requirements.

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	1155	121798.35	20726917	08/11/2025	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	05/07/2025	Restricted Stock Vesting	Issuer			1155	05/07/2025	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

How many Materion (MTRN) shares does the filer plan to sell?

The filer plans to sell 1,155 common shares.

What is the aggregate market value of the planned sale reported in the Form 144?

The aggregate market value is reported as $121,798.35.

When were the shares acquired and by what method?

The shares were acquired on 05/07/2025 by restricted stock vesting and the payment is listed as compensation.

What is the approximate date of the proposed sale?

The approximate date of sale is listed as 08/11/2025.

Which broker and exchange are listed for the sale?

The broker is Fidelity Brokerage Services LLC (900 Salem Street, Smithfield, RI 02917) and the exchange is the NYSE.