MTRN insider reports multiple share dispositions

MTRN insider transactions disclosed under Form 144 report multiple recent share dispositions by Shelly Chadwick.

Rhea-AI Filing Summary

MTRN insider transactions disclosed under Form 144 report multiple recent share dispositions by Shelly Chadwick. The filing lists sales of 8,976 shares on 02/23/2026 for $1,311,638.33 and 2,539 shares on 03/03/2026 for $406,393.14. The record also shows 1,192 shares tied to SAR compensation reported on 05/08/2026.

Insights

Insider Transactions Analyst

Form 144 lists multiple dispositions by Shelly Chadwick with specific share counts and proceeds.

The filing identifies two open‑market or reported dispositions: 8,976 shares sold on 02/23/2026 for $1,311,638.33 and 2,539 shares sold on 03/03/2026 for $406,393.14. It also records 1,192 shares associated with SAR compensation on 05/08/2026.

These entries document reported transactions and compensation mechanics; cash‑flow recipients and exact trade methods are not specified in the excerpt. Subsequent filings or broker confirmations may provide additional settlement or plan details.

Key Figures

Sale on 02/23/2026: 8,976 shares Sale on 03/03/2026: 2,539 shares SAR reported: 1,192 shares +1 more

4 metrics

Sale on 02/23/2026 8,976 shares proceeds listed as $1,311,638.33

Sale on 03/03/2026 2,539 shares proceeds listed as $406,393.14

SAR reported 1,192 shares listed as SAR compensation on 05/08/2026

Broker Fidelity Brokerage Services LLC broker address included in filing header

Key Terms

Form 144, SAR, Proceeds

3 terms

Form 144 regulatory

"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.

SAR financial

"05/08/2026 | SAR | Issuer | Compensation"

Proceeds financial

"02/23/2026 | 8976 | 1311638.33"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did MTRN insider Shelly Chadwick sell in the Form 144?

Shelly Chadwick reported selling 8,976 shares on 02/23/2026 and 2,539 shares on 03/03/2026. The filing records proceeds of $1,311,638.33 and $406,393.14, respectively, and a separate 1,192‑share SAR entry on 05/08/2026.

What proceeds were reported for the 02/23/2026 and 03/03/2026 sales (MTRN)?

The filing shows proceeds of $1,311,638.33 for the 02/23/2026 sale of 8,976 shares and $406,393.14 for the 03/03/2026 sale of 2,539 shares. These figures are listed beside each transaction.

Does the Form 144 show how the shares were sold or who received the proceeds?

The excerpt lists transaction dates, share counts, and proceeds but does not specify trade venues or who received cash. Broker information (Fidelity Brokerage Services LLC) appears, yet the filing does not detail settlement counterparties or use of proceeds.

What is the SAR reference on the MTRN Form 144?

The filing includes a line labeled SAR with 1,192 shares dated 05/08/2026, indicating a compensation‑related entry. The excerpt does not define plan terms or payment mechanics for that SAR entry.

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

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Accepted by SEC EDGAR 05/08/2026 - 04:41 PM EDT 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	0001688289
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	MATERION Corp
SEC File Number	001-15885
Address of Issuer	6070 PARKLAND BLVD. MAYFIELD HTS. OHIO 44124
Phone	2163834931
Name of Person for Whose Account the Securities are To Be Sold	Chadwick Shelly Marie
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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	1192	237065.08	20801485	05/08/2026	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	05/08/2026	SAR	Issuer			1192	05/08/2026	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Shelly Chadwick 6070 Parkland Blvd Mayfield Heights OH 44124	Common	02/23/2026	8976	1311638.33
Shelly Chadwick 6070 Parkland Blvd Mayfield Heights OH 44124	Common	03/03/2026	2539	406393.14

144: Remarks and Signature

Remarks
Date of Notice	05/08/2026
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/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Shelly Chadwick
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)