Materion (MTRN) director discloses deferred stock and RSU grants

Rhea-AI Filing Summary

Materion Corp (MTRN) director reported routine equity awards on a Form 4. On December 5, 2025, the director acquired 17.656 shares of common stock at $0, held indirectly in a directors deferred compensation plan, bringing that indirect holding to 15,997.835 shares. The filing also shows an award of 2 restricted stock units (RSUs) acquired through dividend equivalent reinvestment, with 2,004 RSUs owned directly after the transaction. These dividend-equivalent RSUs will vest at the same time as the underlying RSUs, which is the earlier of May 8, 2026 and the date of the next annual meeting of Materion’s shareholders.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Prevost Patrick M.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	2	$0.00	--
Grant/Award	Common Stock	17.656	$0.00	--

Holdings After Transaction: Restricted Stock Units — 2,004 shares (Direct); Common Stock — 15,997.835 shares (Indirect, Held In Directors Deferred Comp. Plan)

Footnotes (1)

1. Each restricted stock unit represents a right to receive one share of MTRN common stock. These restricted stock units, which were acquired upon the reinvestment of dividend equivalents, will vest at the same time as the restricted stock units to which they relate (earlier of May 8, 2026 and the date of the next annual meeting of MTRN's shareholders). Expiration Date is the same as the Date Exercisable.

Form 4 Insider Transactions: What Each Field Means →

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
Estimated average burden
hours per response:			0.5

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)
12/05/2025

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	12/05/2025		A		17.656	A	$0	15,997.835	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
Restricted Stock Units	(1)	12/05/2025		A		2		(2)	(3)	Common Stock	2	$0	2,004	D

Explanation of Responses:

1. Each restricted stock unit represents a right to receive one share of MTRN common stock.

2. These restricted stock units, which were acquired upon the reinvestment of dividend equivalents, will vest at the same time as the restricted stock units to which they relate (earlier of May 8, 2026 and the date of the next annual meeting of MTRN's shareholders).

3. Expiration Date is the same as the Date Exercisable.

Remarks:

Exhibit 24 Power of Attorney

	/s/Michelle R. Mekinda, as Attorney-In-Fact	12/09/2025
	** 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 insider transaction did Materion Corp (MTRN) disclose in this Form 4?

The filing reports that a director of Materion Corp acquired 17.656 shares of common stock on December 5, 2025 at $0, held indirectly through a directors deferred compensation plan. After this transaction, the indirect holding in that plan was 15,997.835 shares.

How many Materion (MTRN) restricted stock units does the director now hold?

The director acquired 2 restricted stock units (RSUs) through dividend equivalent reinvestment and, following the reported transaction, held a total of 2,004 RSUs directly.

When do the newly acquired Materion (MTRN) RSUs vest?

The RSUs acquired via dividend equivalents will vest at the same time as the related RSUs, which is the earlier of May 8, 2026 and the date of the next annual meeting of Materion’s shareholders.

What is the price paid for the Materion (MTRN) shares and RSUs reported?

The common stock acquired in the directors deferred compensation plan and the restricted stock units were both reported at a price of $0, indicating they were received as equity-based compensation rather than purchased on the open market.

How is the Materion (MTRN) director’s ownership classified in this Form 4?

The filing shows the director holds common stock indirectly through a directors deferred compensation plan and restricted stock units directly, with ownership forms labeled as Indirect (I) for the plan holdings and Direct (D) for the RSUs.

Does this Materion (MTRN) Form 4 involve derivative securities?

Yes. The Form 4 includes restricted stock units in Table II as derivative securities, each representing a right to receive one share of Materion common stock upon vesting.