Executive and director filing history, acquisition and disposal balance, executive concentration, cadence, and stored market context.
Symbol
MTXLatest filing 1 Jul 2026
Company Read
Net disposal
MTX has 21 stored insider filings.
Acquisitions account for 85.7% of classified filings and disposals account for 14.3%.
The largest stored filing is $1.8M from DIETRICH, DOUGLAS T.
Latest filing
1 Jul 2026most recent stored row
Largest filing
$1.8Mreported transaction value
Total filings
21stored transaction rows
Acquisition value
$1.7M18 acquisitions
Disposal value
$2.2M3 disposals
Net value
$-557.2Kacquisitions minus disposals
Filing cadence
Last 12 active months
Apr 20262
May 202611
Jun 20267
Jul 20261
Acquisitions 85.7% · Disposals 14.3%
Apr 2026$0
May 2026$3.9M
Jun 2026$0
Jul 2026$0
Executive concentration
By filing count
PITTMAN, CAROLYN KDirector · 4 filings
DIETRICH, DOUGLAS TDirector, CHAIRMAN AND CEO · 3 filings
CLARK, ROBERT LDirector · 2 filings
JOHNSON, KRISTINA MDirector · 2 filings
ROBINSON, MARC EDirector · 2 filings
CARMOLA, JOHN JDirector · 2 filings
MOTWANI, ROCKYDirector · 2 filings
BREUNIG, JOSEPH C.Director · 2 filings
Market Context
MTX weekly market snapshot
Week 24 Jul 2026
Latest close
342.60 EURstored weekly close
1-week move
+0.3%latest weekly bar
13-week move
-4.4%medium-term context
Relative Strength
-5.2Sharemaestro indicator
Fair value gap
+18.7%price vs fair value
Trend signal
0smoothed trend state
Transaction History
Latest insider filings for MTX
Showing 1-21 of 21
Date
1 Jul 2026
Insider
PITTMAN, CAROLYN KDirector
Side
Acquisition
Shares
99
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
18 Jun 2026
Insider
BREUNIG, JOSEPH C.Director
Side
Acquisition
Shares
33
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
18 Jun 2026
Insider
CARMOLA, JOHN JDirector
Side
Acquisition
Shares
43
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
18 Jun 2026
Insider
CLARK, ROBERT LDirector
Side
Acquisition
Shares
51
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
18 Jun 2026
Insider
JOHNSON, KRISTINA MDirector
Side
Acquisition
Shares
9
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
18 Jun 2026
Insider
MOTWANI, ROCKYDirector
Side
Acquisition
Shares
12
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
18 Jun 2026
Insider
PITTMAN, CAROLYN KDirector
Side
Acquisition
Shares
31
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
18 Jun 2026
Insider
ROBINSON, MARC EDirector
Side
Acquisition
Shares
41
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
20 May 2026
Insider
BREUNIG, JOSEPH C.Director
Side
Acquisition
Shares
1908
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
20 May 2026
Insider
CARMOLA, JOHN JDirector
Side
Acquisition
Shares
1908
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
20 May 2026
Insider
CLARK, ROBERT LDirector
Side
Acquisition
Shares
1908
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
20 May 2026
Insider
JOHNSON, KRISTINA MDirector
Side
Acquisition
Shares
1908
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
20 May 2026
Insider
MOTWANI, ROCKYDirector
Side
Acquisition
Shares
1908
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
20 May 2026
Insider
PITTMAN, CAROLYN KDirector
Side
Acquisition
Shares
1908
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
20 May 2026
Insider
ROBINSON, MARC EDirector
Side
Acquisition
Shares
1908
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
14 May 2026
Insider
DIETRICH, DOUGLAS TDirector, CHAIRMAN AND CEO
Side
Disposal
Shares
21568
Price
81.53
Value
1758422
Security
Common Stock
Date
14 May 2026
Insider
DIETRICH, DOUGLAS TDirector, CHAIRMAN AND CEO
Side
Acquisition
Shares
21568
Price
78.03
Value
1682843
Security
Common Stock
Date
14 May 2026
Insider
DIETRICH, DOUGLAS TDirector, CHAIRMAN AND CEO
Side
Disposal
Shares
21568
Price
0.00
Value
0
Security
Employee Stock Options (Right to Buy)
Date
11 May 2026
Insider
JORDAN, TIMOTHYVice President
Side
Disposal
Shares
6000
Price
80.27
Value
481648
Security
Common Stock
Date
1 Apr 2026
Insider
FEDER, FRANKLINDirector
Side
Acquisition
Shares
239
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Date
1 Apr 2026
Insider
PITTMAN, CAROLYN KDirector
Side
Acquisition
Shares
102
Price
0.00
Value
0
Security
PHANTOM STOCK UNITS
Plain English Guide
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