Arkolith/Insider Trading/MTRN/Form 4

Chemnitz Gregory R.

VP General Counsel & SecretaryMATERION Corp (MTRN) · full profile →Form 4 · filed Mar 3, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$711K
Net Open-Market Flow
-$711K
Transactions
14
8 non-derivative · 6 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Mar 3, 2026Sell(S)1K$157.52$171K9K
Mar 3, 2026Option exercise(M)1K$87.36$89K15K
Mar 3, 2026Sell(S)3K$157.26$540K6K
Mar 3, 2026Option exercise(M)1K$135.58$199K14K
Mar 3, 2026Option exercise(M)3K$113.28$344K12K
Mar 3, 2026Tax withholding(F)4K$157.26$699K10K
Mar 2, 2026Tax withholding(F)1K$166.59$202K9K
Mar 1, 2026Option exercise(M)2K—$011K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Mar 3, 2026Option exercise(M)1K—$0736
Mar 3, 2026Option exercise(M)1K—$02K
Mar 3, 2026Option exercise(M)3K—$00
Mar 1, 2026Grant(A)2K—$02K
Mar 1, 2026Grant(A)1K—$04K
Mar 1, 2026Option exercise(M)2K—$02K

Transaction Codes

S
Open-market sale
M
Option exercise / conversion
F
Shares withheld for taxes
A
Grant / award

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001519910-26-000008) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML