Arkolith/Insider Trading/MTRN/Form 4

Chadwick Shelly Marie

Vice President, Finance & CFOMATERION Corp (MTRN) · full profile →Form 4 · filed Feb 20, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
7
5 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 18, 2026Option exercise(M)5K$80.85$397K32K
Feb 18, 2026Tax withholding(F)4K$157.01$550K29K
Feb 18, 2026Gift(G)225—$025K
Feb 18, 2026Tax withholding(F)3K$156.66$504K25K
Feb 18, 2026Option exercise(M)6K$68.82$398K27K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Feb 18, 2026Option exercise(M)5K—$00
Feb 18, 2026Option exercise(M)6K—$00

Transaction Codes

M
Option exercise / conversion
F
Shares withheld for taxes
G
Gift

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001688289-26-000006) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML