MATERION CFO exercises SARs and sells common shares

Q: What did MATERION Corp (MTRN) CFO Shelly Marie Chadwick report in this Form 4?

Shelly Marie Chadwick reported exercising 4,972 stock appreciation rights into common shares and related dispositions on August 7, 2026, including shares delivered or withheld for exercise price or tax liability and an open-market sale of common stock.

Q: How many MTRN stock appreciation rights did the CFO exercise and at what prices?

The CFO exercised 4,972 stock appreciation rights, consisting of 2,800 rights at $135.58 per share and 2,172 rights at $87.36 per share, each converting into the same number of common shares of MATERION Corp.

Q: How many MATERION Corp (MTRN) shares did the CFO sell and at what price?

Shelly Marie Chadwick sold 1,705 shares of MATERION Corp common stock at a price of $293.00 per share on August 7, 2026, in a sale transaction classified under code "S".

Q: What does the Form 4 say about shares withheld for the CFO’s exercise price or tax liability at MTRN?

The filing shows 3,267 common shares were delivered or withheld at a value of $293.40 per share for payment of exercise price or tax liability related to the exercised stock appreciation rights on August 7, 2026.

Q: Were the MTRN CFO’s Form 4 transactions under a Rule 10b5-1 trading plan?

The document-level indicator shows the Rule 10b5-1 checkbox is not marked as affirmative (aff_10b5_one: false), meaning these reported transactions are not designated in the filing as being made under a Rule 10b5-1 trading plan.

Q: What vesting terms apply to the MTRN CFO’s stock appreciation rights that were exercised?

Footnotes state the stock appreciation rights vest in three substantially equal annual installments, with one grant beginning on March 1, 2025 and another beginning on March 1, 2026, providing context for when the exercised rights became vested.

MATERION Corp Vice President, Finance & CFO Shelly Marie Chadwick exercised stock appreciation rights into 4,972 shares of common stock on August 7, 2026, including 2,800 shares at an exercise price of $135.58 and 2,172 shares at $87.36.

Filing Impact

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Form Type

Rhea-AI Filing Summary

MATERION Corp Vice President, Finance & CFO Shelly Marie Chadwick exercised stock appreciation rights into 4,972 shares of common stock on August 7, 2026, including 2,800 shares at an exercise price of $135.58 and 2,172 shares at $87.36. On the same date, 3,267 shares of common stock were delivered or withheld for payment of exercise price or tax liability, and 1,705 shares were sold at $293.00 per share.

Insider Trade Summary

Exercise and sale activity reported; no spread calculated

Exercise and Sale 6 txns

Insider Chadwick Shelly Marie

Role Vice President, Finance & CFO

Sold 1,705 shs ($500K)

Approx. gross sale proceeds $500K

Approx. exercise cost $569K

Type	Security	Shares	Price	Value
Exercise	Stock Appreciation Rights ^F1	2,800	$0.00	$0.00
Exercise	Stock Appreciation Rights ^F2	2,172	$0.00	$0.00
Exercise	Common Stock	2,800	$135.58	$380K
Exercise	Common Stock	2,172	$87.36	$190K
Exercise Price or Tax Liability	Common Stock	3,267	$293.40	$959K
Sale	Common Stock	1,705	$293.00	$500K

Holdings After Transaction: Stock Appreciation Rights — 5,745 contracts (Direct); Common Stock — 15,246 shares (Direct)

Footnotes (2)

F1. The Stock Appreciation Rights vest in three substantially equal annual installments beginning March 1, 2025.
F2. The Stock Appreciation Rights vest in three substantially equal annual installments beginning March 1, 2026.

Key Figures

Exercised SARs (grant 1): 2,800 Stock Appreciation Rights at $135.58 Exercised SARs (grant 2): 2,172 Stock Appreciation Rights at $87.36 Shares withheld/delivered for exercise price or tax liability: 3,267 shares at $293.40 +2 more

5 metrics

Exercised SARs (grant 1) 2,800 Stock Appreciation Rights at $135.58 Exercised into 2,800 shares of common stock on August 7, 2026

Exercised SARs (grant 2) 2,172 Stock Appreciation Rights at $87.36 Exercised into 2,172 shares of common stock on August 7, 2026

Shares withheld/delivered for exercise price or tax liability 3,267 shares at $293.40 Common shares delivered or withheld in code F transaction on August 7, 2026

Shares sold 1,705 shares at $293.00 Common stock sale (code S) on August 7, 2026

Total SARs exercised 4,972 Stock Appreciation Rights Sum of derivative exercises (code M) reported in this Form 4

Key Terms

Stock Appreciation Rights, exercise price or tax liability, substantially equal annual installments

3 terms

Stock Appreciation Rights financial

"The Stock Appreciation Rights vest in three substantially equal annual installments"

Stock appreciation rights (SARs) are a form of employee compensation that give the holder the right to receive the increase in a company's stock price over a set baseline, paid in cash or shares, without having to buy the stock. For investors, SARs matter because they can create future cash outflows or share dilution and signal how a company rewards and motivates executives — similar to giving a bonus tied directly to how well the company’s stock performs.

exercise price or tax liability financial

"Payment of exercise price or tax liability by delivering or withholding securities"

substantially equal annual installments financial

"vest in three substantially equal annual installments beginning March 1, 2025"

FAQ

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

What did MATERION Corp (MTRN) CFO Shelly Marie Chadwick report in this Form 4?

Shelly Marie Chadwick reported exercising 4,972 stock appreciation rights into common shares and related dispositions on August 7, 2026, including shares delivered or withheld for exercise price or tax liability and an open-market sale of common stock.

How many MTRN stock appreciation rights did the CFO exercise and at what prices?

The CFO exercised 4,972 stock appreciation rights, consisting of 2,800 rights at $135.58 per share and 2,172 rights at $87.36 per share, each converting into the same number of common shares of MATERION Corp.

How many MATERION Corp (MTRN) shares did the CFO sell and at what price?

Shelly Marie Chadwick sold 1,705 shares of MATERION Corp common stock at a price of $293.00 per share on August 7, 2026, in a sale transaction classified under code "S".

What does the Form 4 say about shares withheld for the CFO’s exercise price or tax liability at MTRN?

The filing shows 3,267 common shares were delivered or withheld at a value of $293.40 per share for payment of exercise price or tax liability related to the exercised stock appreciation rights on August 7, 2026.

Were the MTRN CFO’s Form 4 transactions under a Rule 10b5-1 trading plan?

The document-level indicator shows the Rule 10b5-1 checkbox is not marked as affirmative (aff_10b5_one: false), meaning these reported transactions are not designated in the filing as being made under a Rule 10b5-1 trading plan.

What vesting terms apply to the MTRN CFO’s stock appreciation rights that were exercised?

Footnotes state the stock appreciation rights vest in three substantially equal annual installments, with one grant beginning on March 1, 2025 and another beginning on March 1, 2026, providing context for when the exercised rights became vested.

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

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Accepted by SEC EDGAR 08/11/2026 - 04:50 PM EDT

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^*

Chadwick Shelly Marie

(Last)

(First)

(Middle)

6070 PARKLAND BLVD.

(Street)

MAYFIELD HTS.

OHIO

44124

(City)

(State)

(Zip)

UNITED STATES

(Country)

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

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Vice President, Finance & CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/07/2026

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

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

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	08/07/2026		M		2,800	A	$135.58	18,046	D
Common Stock	08/07/2026		M		2,172	A	$87.36	20,218	D
Common Stock	08/07/2026		F		3,267	D	$293.4	16,951	D
Common Stock	08/07/2026		S		1,705	D	$293	15,246	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Appreciation Rights	$135.58	08/07/2026		M			2,800	⁽¹⁾	03/01/2031	Common Stock	2,800	$0	1,400	D
Stock Appreciation Rights	$87.36	08/07/2026		M			2,172	⁽²⁾	03/01/2032	Common Stock	2,172	$0	4,345	D

Explanation of Responses:

1. The Stock Appreciation Rights vest in three substantially equal annual installments beginning March 1, 2025.

2. The Stock Appreciation Rights vest in three substantially equal annual installments beginning March 1, 2026.

Remarks:

	/s/Michelle R. Mekinda, as Attorney-In-Fact	08/11/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR