Materion (NYSE: MTRN) director discloses stock and RSU holdings update

Rhea-AI Filing Summary

Materion Corporation director filed a Form 4 reporting small equity-related transactions in company stock. On December 5, 2025, the director acquired 1.402 shares of common stock at a price of $0, held indirectly through a directors deferred compensation plan. After this, the director indirectly owned 1,269.346 common shares in that plan.

The filing also shows an acquisition of 2 restricted stock units (RSUs) on the same date at a price of $0, bringing total RSU holdings to 2,004 units. Each RSU represents the right to receive one share of Materion common stock. These particular RSUs were received through reinvestment of dividend equivalents and will vest at the earlier of May 8, 2026 or the date of the next annual meeting of Materion shareholders.

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

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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^*

LIGGETT EMILY 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		1.402	A	$0	1,269.346	I	Held in Directors Deferred Comp. Plan
Common Stock								3,776	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 on December 5, 2025?

The filing shows a Materion Corporation (MTRN) director acquired 1.402 shares of common stock at $0, held indirectly in a directors deferred compensation plan, and also received 2 restricted stock units on the same date.

How many Materion (MTRN) shares does the director hold after this Form 4?

Following the reported transaction, the director indirectly owns 1,269.346 shares of Materion common stock through a directors deferred compensation plan.

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

After acquiring 2 additional restricted stock units, the director beneficially owns 2,004 restricted stock units, each representing the right to receive one share of Materion common stock.

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

The RSUs acquired through reinvestment of dividend equivalents will vest at the earlier of May 8, 2026 or the date of the next annual meeting of Materion shareholders.

Were there any cash payments involved in the Materion (MTRN) director’s reported transactions?

No cash was paid for these awards; both the 1.402 common shares and the 2 restricted stock units were reported at a price of $0.

What is the relationship of the reporting person to Materion (MTRN)?

The reporting person is identified as a director of Materion Corporation (MTRN) on the Form 4.