Arkolith/Insider Trading/MTRN/Form 4

Chadwick Shelly Marie

Vice President, Finance & CFOMATERION Corp (MTRN) · full profile →Form 4 · filed Feb 25, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$1.3M
Net Open-Market Flow
-$1.3M
Transactions
2
2 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 23, 2026Sell(S)4K$145.03$576K21K
Feb 23, 2026Sell(S)5K$147.00$735K16K

Transaction Codes

S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001688289-26-000008) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML