GRAMPA JOHN D

CIK: 0001209389
Primary company: MATERION Corp (MTRN)

GRAMPA JOHN D is a corporate insider at MATERION Corp (MTRN) filing SEC Form 4 transactions. 175 transactions across 2 companies, totaling $137,524 in purchases and $1,716,662 in sales. Source: SEC EDGAR.

Total Transactions
175
Total Buy Value
$138K
Total Sell Value
$1.72M
Net Activity
$-1.58M
Last Transaction
Aug 2026
Companies
2

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
Award
Shares
93
Price
-
Value
-
Type
Award
Shares
3,072
Price
-
Value
-
Type
Award
Shares
149
Price
-
Value
-
Type
Award
Shares
168
Price
-
Value
-
Type
Award
Shares
212
Price
-
Value
-
Type
Award
Shares
232
Price
-
Value
-
Type
Award
Shares
4,844
Price
-
Value
-
Type
Award
Shares
227
Price
-
Value
-
Type
Award
Shares
187
Price
-
Value
-
Type
Award
Shares
138
Price
-
Value
-
Type
Award
Shares
151
Price
-
Value
-
Type
Award
Shares
4,350
Price
-
Value
-
Type
Award
Shares
163
Price
-
Value
-
Type
Award
Shares
175
Price
-
Value
-
Type
Award
Shares
180
Price
$0.00
Value
$0
Type
Award
Shares
225
Price
$0.00
Value
$0
Type
Award
Shares
225
Price
$0.00
Value
$0
Type
Award
Shares
6,000
Price
$0.00
Value
$0
Type
Award
Shares
227
Price
$0.00
Value
$0
Type
Award
Shares
258
Price
$0.00
Value
$0