[Form 4] MATERION Corp Insider Trading Activity

Rhea-AI Filing Summary

Director purchase reported: Patrick M. Prevost, a director of Materion Corp (MTRN), acquired 165 shares of the company's common stock on 10/06/2025 at a price of $124.42 per share. After this transaction, his reported beneficial ownership is 15,980.179 shares, held indirectly in the Directors Deferred Compensation Plan. The Form 4 was signed by an attorney-in-fact on 10/07/2025.

Positive

• Insider acquisition recorded: Director purchased 165 shares at $124.42, showing a director-level buy
• Beneficial ownership disclosed: Post-transaction holdings reported as 15,980.179 shares held in the Directors Deferred Compensation Plan

Negative

• None.

Insights

Corporate Governance Analyst

Small, direct purchase increases director's deferred-plan holdings.

This filing shows a director-level acquisition of 165 common shares at $124.42 on 10/06/2025, with the resulting holding reported as 15,980.179 shares held indirectly in the Directors Deferred Compensation Plan. The transaction is reported under Form 4 rules and was signed by an attorney-in-fact.

The purchase size is modest relative to the reported aggregate holding; material impact on company control or capital structure is unlikely in isolation. Investors may note the transaction as a routine director purchase recorded in the company's insider disclosure system; there are no derivative transactions or dispositions disclosed in this filing.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Prevost Patrick M.

(Last) (First) (Middle)

6070 PARKLAND BLVD

(Street)

MAYFIELD HTS. OH 44124

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MATERION Corp [ MTRN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/06/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/06/2025		A		165	A	$124.42	15,980.179	I	Held In Directors Deferred Comp. Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	/s/Michelle R. Mekinda, as Attorney-In-Fact	10/07/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did the Materion (MTRN) Form 4 filed by Patrick M. Prevost disclose?

The Form 4 discloses that director Patrick M. Prevost acquired 165 shares on 10/06/2025 at $124.42, resulting in 15,980.179 shares beneficially owned indirectly.

How was the Materion (MTRN) shareholding held after the transaction?

The filing reports the shares as held indirectly in the Directors Deferred Compensation Plan.

Were any derivative securities reported in this MTRN Form 4?

No. Table II shows no derivative securities; only a non-derivative common stock acquisition was reported.

When was the Form 4 for this MTRN transaction signed?

The Form 4 was signed by an attorney-in-fact on 10/07/2025.

Does this Form 4 indicate any sales or dispositions by the director?

No. The reported transaction is an acquisition (code A) of 165 shares; there are no dispositions listed.