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$MTX

$72.60 -$3.64 (4.77%)

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Insider Transactions

Insider Transaction Summary

DOUGLAS T DIETRICH

197,541 shares

Net: +53,298 B/S: 4.3

Thomas J Meek

100,647 shares

Net: 0 B/S: -

DJ III MONAGLE

91,020 shares

Net: +17,228 B/S: 2.01

Jonathan J Hastings

65,138 shares

Net: +4,953 B/S: ∞

DOUGLAS W MAYGER

45,744 shares

Net: 0 B/S: -

MICHAEL CIPOLLA

40,189 shares

Net: +6,462 B/S: ∞

DUANE DUNHAM

35,769 shares

Net: 0 B/S: -

BRETT ARGIRAKIS

33,763 shares

Net: +17,099 B/S: 4.25

ROBERT L CLARK

33,650 shares

Net: +2,083 B/S: ∞

JOHN J CARMOLA

27,912 shares

Net: +2,051 B/S: ∞

MARC E ROBINSON

26,874 shares

Net: +2,046 B/S: ∞

FRANKLIN FEDER

23,223 shares

Net: +840 B/S: ∞

Joseph C. Breunig

21,531 shares

Net: +2,016 B/S: ∞

CAROLYN K PITTMAN

20,619 shares

Net: +2,311 B/S: ∞

DONALD C WINTER

19,368 shares

Net: 0 B/S: -

Johannes C Schut

17,949 shares

Net: 0 B/S: -

Alison Ann Deans

15,439 shares

Net: +84 B/S: ∞

MATTHEW E GARTH

13,591 shares

Net: 0 B/S: -

GARY L CASTAGNA

12,771 shares

Net: 0 B/S: -

Barbara Smith

12,122 shares

Net: 0 B/S: -

ERIN CUTLER

8,254 shares

Net: +6,410 B/S: ∞

ANDREW M JONES

8,187 shares

Net: 0 B/S: -

Rocky Motwani

8,093 shares

Net: +1,943 B/S: ∞

ERIK ALDAG

7,978 shares

Net: +11,271 B/S: ∞

KRISTINA M JOHNSON

5,989 shares

Net: +1,930 B/S: ∞

RICK HONEY

4,711 shares

Net: 0 B/S: -

JOSEPH C MUSCARI

3,793 shares

Net: 0 B/S: -

TIMOTHY JORDAN

1,279 shares

Net: +3,780 B/S: 2.15

WILLIAM RANDAL MENDEZ

1,115 shares

Net: 0 B/S: -

PAUL J DONNELLY

910 shares

Net: 0 B/S: -

Patrick Carpenter

0 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
DOUGLAS T DIETRICH	197,541	+53,298	4.3
Thomas J Meek	100,647	0	-
DJ III MONAGLE	91,020	+17,228	2.01
Jonathan J Hastings	65,138	+4,953	∞
DOUGLAS W MAYGER	45,744	0	-
MICHAEL CIPOLLA	40,189	+6,462	∞
DUANE DUNHAM	35,769	0	-
BRETT ARGIRAKIS	33,763	+17,099	4.25
ROBERT L CLARK	33,650	+2,083	∞
JOHN J CARMOLA	27,912	+2,051	∞
MARC E ROBINSON	26,874	+2,046	∞
FRANKLIN FEDER	23,223	+840	∞
Joseph C. Breunig	21,531	+2,016	∞
CAROLYN K PITTMAN	20,619	+2,311	∞
DONALD C WINTER	19,368	0	-
Johannes C Schut	17,949	0	-
Alison Ann Deans	15,439	+84	∞
MATTHEW E GARTH	13,591	0	-
GARY L CASTAGNA	12,771	0	-
Barbara Smith	12,122	0	-
ERIN CUTLER	8,254	+6,410	∞
ANDREW M JONES	8,187	0	-
Rocky Motwani	8,093	+1,943	∞
ERIK ALDAG	7,978	+11,271	∞
KRISTINA M JOHNSON	5,989	+1,930	∞
RICK HONEY	4,711	0	-
JOSEPH C MUSCARI	3,793	0	-
TIMOTHY JORDAN	1,279	+3,780	2.15
WILLIAM RANDAL MENDEZ	1,115	0	-
PAUL J DONNELLY	910	0	-
Patrick Carpenter	0	0	-

Individual Transactions

May 20, 2026

KRISTINA M JOHNSON

Grant/Award Acquisition

Change: +1,908

Price: $0.00

Shares: 5,989

Value: +$0

JOHN J CARMOLA

Grant/Award Acquisition

Change: +1,908

Price: $0.00

Shares: 27,912

Value: +$0

ROBERT L CLARK

Grant/Award Acquisition

Change: +1,908

Price: $0.00

Shares: 33,650

Value: +$0

Joseph C. Breunig

Grant/Award Acquisition

Change: +1,908

Price: $0.00

Shares: 21,531

Value: +$0

MARC E ROBINSON

Grant/Award Acquisition

Change: +1,908

Price: $0.00

Shares: 26,874

Value: +$0

CAROLYN K PITTMAN

Grant/Award Acquisition

Change: +1,908

Price: $0.00

Shares: 20,619

Value: +$0

Rocky Motwani

Grant/Award Acquisition

Change: +1,908

Price: $0.00

Shares: 8,093

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
KRISTINA M JOHNSON	May 21	Grant/Award Acquisition (A) Compensation/Award	5,989	+1,908	$0.00	+$0
JOHN J CARMOLA	May 21	Grant/Award Acquisition (A) Compensation/Award	27,912	+1,908	$0.00	+$0
ROBERT L CLARK	May 21	Grant/Award Acquisition (A) Compensation/Award	33,650	+1,908	$0.00	+$0
Joseph C. Breunig	May 21	Grant/Award Acquisition (A) Compensation/Award	21,531	+1,908	$0.00	+$0
MARC E ROBINSON	May 21	Grant/Award Acquisition (A) Compensation/Award	26,874	+1,908	$0.00	+$0
CAROLYN K PITTMAN	May 21	Grant/Award Acquisition (A) Compensation/Award	20,619	+1,908	$0.00	+$0
Rocky Motwani	May 21	Grant/Award Acquisition (A) Compensation/Award	8,093	+1,908	$0.00	+$0

May 14, 2026

DOUGLAS T DIETRICH

Open Market Sale

Change: -21,568

Price: $81.53

Shares: 175,973

Value: -$1,758,421

DOUGLAS T DIETRICH

Option Exercise/Conversion

Change: +21,568

Price: $78.03

Shares: 197,541

Value: +$1,682,843

Insider	Filing Date	Transaction	Shares	Change	Price	Value
DOUGLAS T DIETRICH	May 18	Open Market Sale (S) Market Sale	175,973	-21,568	$81.53	-$1,758,421
DOUGLAS T DIETRICH	May 18	Option Exercise/Conversion (M) Compensation/Award	197,541	+21,568	$78.03	+$1,682,843

May 11, 2026

TIMOTHY JORDAN

Open Market Sale

Change: -6,000

Price: $80.27

Shares: 1,279

Value: -$481,648

Insider	Filing Date	Transaction	Shares	Change	Price	Value
TIMOTHY JORDAN	May 13	Open Market Sale (S) Market Sale	1,279	-6,000	$80.27	-$481,648

April 01, 2026

CAROLYN K PITTMAN

Grant/Award Acquisition

Change: +102

Price: $0.00

Shares: 18,711

Value: +$0

FRANKLIN FEDER

Grant/Award Acquisition

Change: +239

Price: $0.00

Shares: 23,223

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
CAROLYN K PITTMAN	Apr 02	Grant/Award Acquisition (A) Compensation/Award	18,711	+102	$0.00	+$0
FRANKLIN FEDER	Apr 03	Grant/Award Acquisition (A) Compensation/Award	23,223	+239	$0.00	+$0

March 06, 2026

Rocky Motwani

Grant/Award Acquisition

Change: +11

Price: $0.00

Shares: 6,185

Value: +$0

FRANKLIN FEDER

Grant/Award Acquisition

Change: +41

Price: $0.00

Shares: 22,984

Value: +$0

CAROLYN K PITTMAN

Grant/Award Acquisition

Change: +33

Price: $0.00

Shares: 18,609

Value: +$0

MARC E ROBINSON

Grant/Award Acquisition

Change: +44

Price: $0.00

Shares: 24,965

Value: +$0

Joseph C. Breunig

Grant/Award Acquisition

Change: +35

Price: $0.00

Shares: 19,622

Value: +$0

ROBERT L CLARK

Grant/Award Acquisition

Change: +56

Price: $0.00

Shares: 31,742

Value: +$0

Alison Ann Deans

Grant/Award Acquisition

Change: +27

Price: $0.00

Shares: 15,439

Value: +$0

JOHN J CARMOLA

Grant/Award Acquisition

Change: +46

Price: $0.00

Shares: 26,004

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Rocky Motwani	Mar 10	Grant/Award Acquisition (A) Compensation/Award	6,185	+11	$0.00	+$0
FRANKLIN FEDER	Mar 10	Grant/Award Acquisition (A) Compensation/Award	22,984	+41	$0.00	+$0
CAROLYN K PITTMAN	Mar 10	Grant/Award Acquisition (A) Compensation/Award	18,609	+33	$0.00	+$0
MARC E ROBINSON	Mar 10	Grant/Award Acquisition (A) Compensation/Award	24,965	+44	$0.00	+$0
Joseph C. Breunig	Mar 10	Grant/Award Acquisition (A) Compensation/Award	19,622	+35	$0.00	+$0
ROBERT L CLARK	Mar 10	Grant/Award Acquisition (A) Compensation/Award	31,742	+56	$0.00	+$0
Alison Ann Deans	Mar 10	Grant/Award Acquisition (A) Compensation/Award	15,439	+27	$0.00	+$0
JOHN J CARMOLA	Mar 10	Grant/Award Acquisition (A) Compensation/Award	26,004	+46	$0.00	+$0