Arkolith/Insider Trading/MTRN/Form 4

Chadwick Shelly Marie

Vice President, Finance & CFOMATERION Corp (MTRN) · full profile →Form 4 · filed Mar 10, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
3
2 non-derivative · 1 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Mar 9, 2026Tax withholding(F)6$144.19$86515K
Mar 6, 2026Grant(A)9—$015K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Mar 6, 2026Grant(A)14—$012K

Transaction Codes

F
Shares withheld for taxes
A
Grant / award

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001688289-26-000012) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML