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MTRN · Materion

4 Insider transaction report

Filed Tuesday, August 11, 2026, accepted by the SEC at 4:50 PM Eastern. Insider forms.

Open the filing at sec.gov Main document

Accession number
0001688289-26-000018
Form
4
Period or event date
Aug 7, 2026
Main document
wk-form4_1786481408.xml
Size at EDGAR
13 KB

Transactions in this filing

Read from the filing’s own XML. Codes are the SEC’s Form 4 transaction codes; value is shares times price where a price above zero is given.

FiledInsider (as named in the filing)TransactionSharesPriceValue
Chadwick Shelly MarieVice President, Finance & CFO
M Option or right exercised or converted
2,800 in
$135.58
$379,624
Chadwick Shelly MarieVice President, Finance & CFO
M Option or right exercised or converted
2,172 in
$87.36
$189,746
Chadwick Shelly MarieVice President, Finance & CFO
F Shares withheld for tax or exercise price
3,267 out
$293.40
$958,538
Chadwick Shelly MarieVice President, Finance & CFO
S Open-market or private sale
1,705 out
$293.00
$499,565
Chadwick Shelly MarieVice President, Finance & CFO
M Option or right exercised or converted (derivative: Stock Appreciation Rights)
2,800 out
none
—
Chadwick Shelly MarieVice President, Finance & CFO
M Option or right exercised or converted (derivative: Stock Appreciation Rights)
2,172 out
none
—

Cuyahoga Courier copies the filing’s index facts from EDGAR and links to the original; it does not store or summarise the document. Nothing here is investment advice.