Materion (MTRN) director adds stock and RSUs in latest Form 4

Rhea-AI Filing Summary

Materion Corporation director reports new stock and RSU awards. A Materion (MTRN) director filed a Form 4 reporting equity awards dated 12/05/2025. The director acquired 57.815 shares of common stock at a price of $0 through a transaction credited to a Directors Deferred Compensation Plan, bringing indirect beneficial ownership in that plan to 52,386.794 shares. The director also holds 5,908.972 shares of common stock directly.

In addition, the director acquired 2 restricted stock units on 12/05/2025, with each unit representing one share of Materion common stock, increasing direct holdings to 2,004 restricted stock units. These particular units were received through the reinvestment of dividend equivalents and will vest at the earlier of May 8, 2026 or the date of Materion’s next annual shareholder meeting, aligning their schedule with the related restricted stock units.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider SHULAR CRAIG S

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	2	$0.00	--
Grant/Award	Common Stock	57.815	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Units — 2,004 shares (Direct); Common Stock — 52,386.794 shares (Indirect, Held In Directors Deferred Comp. Plan); Common Stock — 5,908.972 shares (Direct)

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^*

SHULAR CRAIG S

(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		57.815	A	$0	52,386.794	I	Held In Directors Deferred Comp. Plan
Common Stock								5,908.972	D

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 (MTRN) report in this Form 4?

The filing shows a Materion director acquired 57.815 shares of common stock at $0, credited to a Directors Deferred Compensation Plan, and now indirectly beneficially owns 52,386.794 shares in that plan.

How many Materion (MTRN) shares does the director now beneficially own?

After the reported transaction, the director beneficially owns 52,386.794 common shares indirectly through the Directors Deferred Compensation Plan and 5,908.972 common shares directly.

What restricted stock units were reported in the Materion (MTRN) Form 4?

The director acquired 2 restricted stock units (RSUs) on 12/05/2025, each representing one share of Materion common stock, at a price of $0, and now holds 2,004 RSUs directly.

Why did the Materion (MTRN) director receive additional restricted stock units?

The RSUs were acquired upon the reinvestment of dividend equivalents, meaning dividends payable on existing RSUs were converted into additional RSUs instead of being paid in cash.

When will the newly acquired Materion (MTRN) restricted stock units vest?

The newly acquired RSUs will vest at the earlier of May 8, 2026 and the date of Materion’s next annual shareholder meeting, matching the vesting schedule of the related RSUs.

What role does the reporting person have at Materion (MTRN)?

The reporting person is identified as a director of Materion Corporation, with the Form 4 filed as a single reporting person filing.