Chadwick Shelly Marie 4

4 · MATERION Corp · Filed Mar 3, 2026

Form 4

Period: 2026-03-01

Vice President, Finance & CFO

Transactions

Exercise/Conversion
Common Stock
2026-03-01+5,552→ 21,691 total
Tax Payment
Common Stock
2026-03-02$166.59/sh−3,909$651,200→ 17,782 total
Sale
Common Stock
[F1]
2026-03-03$157.26/sh−1,039$163,393→ 16,743 total
Sale
Common Stock
2026-03-03$162.00/sh−1,500$243,000→ 15,243 total
Exercise/Conversion
Restricted Stock Units
[F2][F3][F4]
2026-03-01−5,552→ 8,886 total
→ Common Stock (5,552 underlying)
Award
Restricted Stock Units
[F2][F5][F4]
2026-03-01+3,590→ 12,476 total
→ Common Stock (3,590 underlying)
Award
Stock Appreciation Rights
[F6]
2026-03-01+5,498→ 5,498 total
Exercise: $166.59Exp: 2033-03-01→ Common Stock (5,498 underlying)

Footnotes (6)

[F1]The reported sale of 1,039 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 1, 2025.
[F2]Each restricted stock unit represents a right to receive one share of MTRN common stock.
[F3]These restricted stock units granted on 03/01/2023, 03/01/2024, and 03/01/2025, and any related dividend equivalents, vest in three equal annual installments.
[F4]Expiration Date is the same as the Date Exercisable.
[F5]These restricted stock units vest in three equal annual installments beginning March 1, 2027.
[F6]These Stock Appreciation Rights vest in three equal annual installments beginning March 1, 2027.

Signature

/s/Michelle R. Mekinda, as Attorney-In-Fact|2026-03-03

Documents

1 file