MTX

insider transactions

MINERALS TECHNOLOGIES INC — buys & sells by directors, officers and 10% owners (SEC Form 4).

30D 90D 1Y

Net shares · 365d

-27.6K

0 buy · 27.6K sell

Net value · 365d

-$2.2M

$0 in · $2.2M out

Sentiment · 365d

Net selling

0% buying · 100% selling

Open-market trades · 365d

0 buy · 27.6K sell

Net buy / sell volume

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Grant·A
May 26, 26

Douglas T Dietrich

Director

$25.7K

697 sh · $36.94

Own +7%
Grant·A
May 21, 26

JOHNSON KRISTINA M

Director

$0

1.3K sh

Own +20%
Grant·A
May 20, 26

Marc E Robinson

Director

$0

1.9K sh

Own +8%
Grant·A
May 20, 26

Carolyn K Pittman

Director

$0

1.9K sh

Own +10%
Grant·A
May 20, 26

Rocky Motwani

Director

$0

1.9K sh

Own +31%
Grant·A
May 20, 26

JOHNSON KRISTINA M

Director

$0

1.9K sh

Own +47%
Grant·A
May 20, 26

Robert L Clark

Director

$0

1.9K sh

Own +6%
Grant·A
May 20, 26

John J Carmola

Director

$0

1.9K sh

Own +7%
Grant·A
May 20, 26

Joseph C. Breunig

Director

$0

1.9K sh

Own +10%
Exercise·M
May 14, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$0

21.6K sh

Own New
Sell·S
May 14, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$1.8M

21.6K sh · $81.53

Own -11%
Exercise·M
May 14, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$1.7M

21.6K sh · $78.03

Own +12%
Sell·S
May 11, 26

Timothy Jordan KEY

Vice President

$481.6K

6.0K sh · $80.27

Own -82%
Grant·A
Apr 1, 26

Carolyn K Pittman

Director

$0

102 sh

Own +1%
Grant·A
Apr 1, 26

Franklin Feder

Director

$0

239 sh

Own +1%
Grant·A
Mar 6, 26

Marc E Robinson

Director

$0

44 sh

Own +0%
Grant·A
Mar 6, 26

Carolyn K Pittman

Director

$0

33 sh

Own +0%
Grant·A
Mar 6, 26

Rocky Motwani

Director

$0

11 sh

Own +0%
Grant·A
Mar 6, 26

JOHNSON KRISTINA M

Director

$0

7 sh

Own +0%
Grant·A
Mar 6, 26

Franklin Feder

Director

$0

41 sh

Own +0%
Grant·A
Mar 6, 26

Alison Ann Deans

Director

$0

27 sh

Own +0%
Grant·A
Mar 6, 26

Robert L Clark

Director

$0

56 sh

Own +0%
Grant·A
Mar 6, 26

John J Carmola

Director

$0

46 sh

Own +0%
Grant·A
Mar 6, 26

Joseph C. Breunig

Director

$0

35 sh

Own +0%
Grant·A
Feb 24, 26

Douglas T Dietrich

Director

$25.8K

642 sh · $40.10

Own +6%
Exercise·M
Jan 30, 26

Douglas T Dietrich

Director

$0

841 sh

Own +100%
Other·F
Jan 30, 26

Douglas T Dietrich

Director

$860

25 sh · $34.39

Own -3%
Exercise·M
Jan 30, 26

Douglas T Dietrich

Director

$28.9K

841 sh · $34.39

Own New
Exercise·M
Jan 26, 26

Dj Monagle III KEY

Group President

$0

3.5K sh

Own +18%
Other·F
Jan 26, 26

Dj Monagle III KEY

Group President

$134.1K

1.9K sh · $68.89

Own -2%
Exercise·M
Jan 26, 26

Dj Monagle III KEY

Group President

$0

3.5K sh

Own +4%
Exercise·M
Jan 26, 26

Timothy Jordan KEY

Vice President

$0

1.9K sh

Own +18%
Other·F
Jan 26, 26

Timothy Jordan KEY

Vice President

$67.6K

981 sh · $68.89

Own -12%
Exercise·M
Jan 26, 26

Timothy Jordan KEY

Vice President

$0

1.9K sh

Own +30%
Exercise·M
Jan 26, 26

Jonathan J Hastings KEY

Senior Vice President

$0

3.1K sh

Own +54%
Other·F
Jan 26, 26

Jonathan J Hastings KEY

Senior Vice President

$91.4K

1.3K sh · $68.89

Own -2%
Exercise·M
Jan 26, 26

Jonathan J Hastings KEY

Senior Vice President

$0

3.1K sh

Own +5%
Exercise·M
Jan 26, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$0

11.1K sh

Own +19%
Other·F
Jan 26, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$423.8K

6.2K sh · $68.89

Own -3%
Exercise·M
Jan 26, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$0

11.1K sh

Own +7%
Exercise·M
Jan 26, 26

Erin Cutler

VP, Human Resources

$0

1.2K sh

Own +17%
Other·F
Jan 26, 26

Erin Cutler

VP, Human Resources

$35.8K

520 sh · $68.89

Own -6%
Exercise·M
Jan 26, 26

Erin Cutler

VP, Human Resources

$0

1.2K sh

Own +17%
Exercise·M
Jan 26, 26

CIPOLLA MICHAEL KEY

VICE PRESIDENT

$0

1.3K sh

Own +18%
Other·F
Jan 26, 26

CIPOLLA MICHAEL KEY

VICE PRESIDENT

$45.5K

660 sh · $68.89

Own -2%
Exercise·M
Jan 26, 26

CIPOLLA MICHAEL KEY

VICE PRESIDENT

$0

1.3K sh

Own +3%
Exercise·M
Jan 26, 26

Brett Argirakis KEY

Group President

$0

2.7K sh

Own +14%
Other·F
Jan 26, 26

Brett Argirakis KEY

Group President

$80.1K

1.2K sh · $68.89

Own -3%
Exercise·M
Jan 26, 26

Brett Argirakis KEY

Group President

$0

2.7K sh

Own +9%
Exercise·M
Jan 26, 26

Erik Aldag KEY

SVP FINANCE AND TREASURY, CFO

$0

1.8K sh

Own +14%
Other·F
Jan 26, 26

Erik Aldag KEY

SVP FINANCE AND TREASURY, CFO

$70.2K

1.0K sh · $68.89

Own -13%
Exercise·M
Jan 26, 26

Erik Aldag KEY

SVP FINANCE AND TREASURY, CFO

$0

1.8K sh

Own +30%
Exercise·M
Jan 23, 26

Dj Monagle III KEY

Group President

$0

3.8K sh

Own +16%
Other·F
Jan 23, 26

Dj Monagle III KEY

Group President

$144.3K

2.1K sh · $68.77

Own -2%
Exercise·M
Jan 23, 26

Dj Monagle III KEY

Group President

$0

3.8K sh

Own +4%
Exercise·M
Jan 23, 26

Timothy Jordan KEY

Vice President

$0

2.0K sh

Own +16%
Other·F
Jan 23, 26

Timothy Jordan KEY

Vice President

$72.8K

1.1K sh · $68.77

Own -14%
Exercise·M
Jan 23, 26

Timothy Jordan KEY

Vice President

$0

2.0K sh

Own +38%
Exercise·M
Jan 23, 26

Jonathan J Hastings KEY

Senior Vice President

$0

3.1K sh

Own +36%
Other·F
Jan 23, 26

Jonathan J Hastings KEY

Senior Vice President

$93.1K

1.4K sh · $68.77

Own -2%
Exercise·M
Jan 23, 26

Jonathan J Hastings KEY

Senior Vice President

$0

3.1K sh

Own +5%
Exercise·M
Jan 23, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$0

11.0K sh

Own +16%
Other·F
Jan 23, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$418.9K

6.1K sh · $68.77

Own -3%
Exercise·M
Jan 23, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$0

11.0K sh

Own +7%
Exercise·M
Jan 23, 26

Erin Cutler

VP, Human Resources

$0

1.3K sh

Own +16%
Other·F
Jan 23, 26

Erin Cutler

VP, Human Resources

$41.8K

608 sh · $68.77

Own -8%
Exercise·M
Jan 23, 26

Erin Cutler

VP, Human Resources

$0

1.3K sh

Own +20%
Exercise·M
Jan 23, 26

CIPOLLA MICHAEL KEY

VICE PRESIDENT

$0

1.4K sh

Own +17%
Other·F
Jan 23, 26

CIPOLLA MICHAEL KEY

VICE PRESIDENT

$53.2K

774 sh · $68.77

Own -2%
Exercise·M
Jan 23, 26

CIPOLLA MICHAEL KEY

VICE PRESIDENT

$0

1.4K sh

Own +4%
Exercise·M
Jan 23, 26

Brett Argirakis KEY

Group President

$0

3.2K sh

Own +15%
Other·F
Jan 23, 26

Brett Argirakis KEY

Group President

$97.2K

1.4K sh · $68.77

Own -4%
Exercise·M
Jan 23, 26

Brett Argirakis KEY

Group President

$0

3.2K sh

Own +11%
Exercise·M
Jan 23, 26

Erik Aldag KEY

SVP FINANCE AND TREASURY, CFO

$0

2.2K sh

Own +15%
Other·F
Jan 23, 26

Erik Aldag KEY

SVP FINANCE AND TREASURY, CFO

$85.3K

1.2K sh · $68.77

Own -17%
Exercise·M
Jan 23, 26

Erik Aldag KEY

SVP FINANCE AND TREASURY, CFO

$0

2.2K sh

Own +44%
Exercise·M
Jan 21, 26

Dj Monagle III KEY

Group President

$0

3.5K sh

Own +13%
Other·F
Jan 21, 26

Dj Monagle III KEY

Group President

$136.2K

2.0K sh · $66.92

Own -2%
Exercise·M
Jan 21, 26

Dj Monagle III KEY

Group President

$0

3.5K sh

Own +4%
Exercise·M
Jan 21, 26

Timothy Jordan KEY

Vice President

$0

1.9K sh

Own +13%
Other·F
Jan 21, 26

Timothy Jordan KEY

Vice President

$71.7K

1.1K sh · $66.92

Own -17%
Exercise·M
Jan 21, 26

Timothy Jordan KEY

Vice President

$0

1.9K sh

Own +42%
Exercise·M
Jan 21, 26

Jonathan J Hastings KEY

Senior Vice President

$0

2.8K sh

Own +23%
Other·F
Jan 21, 26

Jonathan J Hastings KEY

Senior Vice President

$88.2K

1.3K sh · $66.92

Own -2%
Exercise·M
Jan 21, 26

Jonathan J Hastings KEY

Senior Vice President

$0

2.8K sh

Own +5%
Exercise·M
Jan 21, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$0

10.0K sh

Own +12%
Other·F
Jan 21, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$376.8K

5.6K sh · $66.92

Own -3%
Exercise·M
Jan 21, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$0

10.0K sh

Own +6%
Exercise·M
Jan 21, 26

Erin Cutler

VP, Human Resources

$0

1.2K sh

Own +13%
Other·F
Jan 21, 26

Erin Cutler

VP, Human Resources

$39.0K

583 sh · $66.92

Own -8%
Exercise·M
Jan 21, 26

Erin Cutler

VP, Human Resources

$0

1.2K sh

Own +21%
Exercise·M
Jan 21, 26

CIPOLLA MICHAEL KEY

VICE PRESIDENT

$0

1.3K sh

Own +13%
Other·F
Jan 21, 26

CIPOLLA MICHAEL KEY

VICE PRESIDENT

$48.9K

731 sh · $66.92

Own -2%
Exercise·M
Jan 21, 26

CIPOLLA MICHAEL KEY

VICE PRESIDENT

$0

1.3K sh

Own +3%
Exercise·M
Jan 21, 26

Brett Argirakis KEY

Group President

$0

3.1K sh

Own +13%
Other·F
Jan 21, 26

Brett Argirakis KEY

Group President

$97.5K

1.5K sh · $66.92

Own -5%
Exercise·M
Jan 21, 26

Brett Argirakis KEY

Group President

$0

3.1K sh

Own +11%
Exercise·M
Jan 21, 26

Erik Aldag KEY

SVP FINANCE AND TREASURY, CFO

$0

2.2K sh

Own +13%
Other·F
Jan 21, 26

Erik Aldag KEY

SVP FINANCE AND TREASURY, CFO

$90.7K

1.4K sh · $66.92

Own -21%
Exercise·M
Jan 21, 26

Erik Aldag KEY

SVP FINANCE AND TREASURY, CFO

$0

2.2K sh

Own +53%
Grant·A
Jan 20, 26

Dj Monagle III KEY

Group President

$0

10.7K sh

Own New
Grant·A
Jan 20, 26

Dj Monagle III KEY

Group President

$0

12.5K sh

Own +58%
Grant·A
Jan 20, 26

Timothy Jordan KEY

Vice President

$0

6.0K sh

Own New
Grant·A
Jan 20, 26

Timothy Jordan KEY

Vice President

$0

7.0K sh

Own +60%
Grant·A
Jan 20, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$0

33.5K sh

Own New
Grant·A
Jan 20, 26

Douglas T Dietrich KEY

CHAIRMAN AND CEO

$0

39.0K sh

Own +62%
Grant·A
Jan 20, 26

Erin Cutler

VP, Human Resources

$0

3.8K sh

Own New
Grant·A
Jan 20, 26

Erin Cutler

VP, Human Resources

$0

4.5K sh

Own +61%
Grant·A
Jan 20, 26

CIPOLLA MICHAEL KEY

VICE PRESIDENT

$0

4.0K sh

Own New
Grant·A
Jan 20, 26

CIPOLLA MICHAEL KEY

VICE PRESIDENT

$0

4.6K sh

Own +58%
Grant·A
Jan 20, 26

Brett Argirakis KEY

Group President

$0

10.4K sh

Own New
Grant·A
Jan 20, 26

Brett Argirakis KEY

Group President

$0

12.1K sh

Own +65%
Grant·A
Jan 20, 26

Erik Aldag KEY

SVP FINANCE AND TREASURY, CFO

$0

7.3K sh

Own New
Grant·A
Jan 20, 26

Erik Aldag KEY

SVP FINANCE AND TREASURY, CFO

$0

8.6K sh

Own +66%
Grant·A
Jan 2, 26

Carolyn K Pittman

Director

$0

120 sh

Own +1%
Grant·A
Jan 2, 26

Franklin Feder

Director

$0

279 sh

Own +1%

Date▾	Insider	Role	Type	Shares	Own Δ	Price	Value
May 26, 2026	Douglas T Dietrich	Director	Grant A	697	+7%	$36.94	$25.7K
May 21, 2026	JOHNSON KRISTINA M	Director	Grant A	1.3K	+20%	—	$0
May 20, 2026	Marc E Robinson	Director	Grant A	1.9K	+8%	—	$0
May 20, 2026	Carolyn K Pittman	Director	Grant A	1.9K	+10%	—	$0
May 20, 2026	Rocky Motwani	Director	Grant A	1.9K	+31%	—	$0
May 20, 2026	JOHNSON KRISTINA M	Director	Grant A	1.9K	+47%	—	$0
May 20, 2026	Robert L Clark	Director	Grant A	1.9K	+6%	—	$0
May 20, 2026	John J Carmola	Director	Grant A	1.9K	+7%	—	$0
May 20, 2026	Joseph C. Breunig	Director	Grant A	1.9K	+10%	—	$0
May 14, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Exercise M	21.6K	New	—	$0
May 14, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Sell S	21.6K	-11%	$81.53	$1.8M
May 14, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Exercise M	21.6K	+12%	$78.03	$1.7M
May 11, 2026	Timothy Jordan KEY	Vice President	Sell S	6.0K	-82%	$80.27	$481.6K
Apr 1, 2026	Carolyn K Pittman	Director	Grant A	102	+1%	—	$0
Apr 1, 2026	Franklin Feder	Director	Grant A	239	+1%	—	$0
Mar 6, 2026	Marc E Robinson	Director	Grant A	44	+0%	—	$0
Mar 6, 2026	Carolyn K Pittman	Director	Grant A	33	+0%	—	$0
Mar 6, 2026	Rocky Motwani	Director	Grant A	11	+0%	—	$0
Mar 6, 2026	JOHNSON KRISTINA M	Director	Grant A	7	+0%	—	$0
Mar 6, 2026	Franklin Feder	Director	Grant A	41	+0%	—	$0
Mar 6, 2026	Alison Ann Deans	Director	Grant A	27	+0%	—	$0
Mar 6, 2026	Robert L Clark	Director	Grant A	56	+0%	—	$0
Mar 6, 2026	John J Carmola	Director	Grant A	46	+0%	—	$0
Mar 6, 2026	Joseph C. Breunig	Director	Grant A	35	+0%	—	$0
Feb 24, 2026	Douglas T Dietrich	Director	Grant A	642	+6%	$40.10	$25.8K
Jan 30, 2026	Douglas T Dietrich	Director	Exercise M	841	+100%	—	$0
Jan 30, 2026	Douglas T Dietrich	Director	Other F	25	-3%	$34.39	$860
Jan 30, 2026	Douglas T Dietrich	Director	Exercise M	841	New	$34.39	$28.9K
Jan 26, 2026	Dj Monagle III KEY	Group President	Exercise M	3.5K	+18%	—	$0
Jan 26, 2026	Dj Monagle III KEY	Group President	Other F	1.9K	-2%	$68.89	$134.1K
Jan 26, 2026	Dj Monagle III KEY	Group President	Exercise M	3.5K	+4%	—	$0
Jan 26, 2026	Timothy Jordan KEY	Vice President	Exercise M	1.9K	+18%	—	$0
Jan 26, 2026	Timothy Jordan KEY	Vice President	Other F	981	-12%	$68.89	$67.6K
Jan 26, 2026	Timothy Jordan KEY	Vice President	Exercise M	1.9K	+30%	—	$0
Jan 26, 2026	Jonathan J Hastings KEY	Senior Vice President	Exercise M	3.1K	+54%	—	$0
Jan 26, 2026	Jonathan J Hastings KEY	Senior Vice President	Other F	1.3K	-2%	$68.89	$91.4K
Jan 26, 2026	Jonathan J Hastings KEY	Senior Vice President	Exercise M	3.1K	+5%	—	$0
Jan 26, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Exercise M	11.1K	+19%	—	$0
Jan 26, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Other F	6.2K	-3%	$68.89	$423.8K
Jan 26, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Exercise M	11.1K	+7%	—	$0
Jan 26, 2026	Erin Cutler	VP, Human Resources	Exercise M	1.2K	+17%	—	$0
Jan 26, 2026	Erin Cutler	VP, Human Resources	Other F	520	-6%	$68.89	$35.8K
Jan 26, 2026	Erin Cutler	VP, Human Resources	Exercise M	1.2K	+17%	—	$0
Jan 26, 2026	CIPOLLA MICHAEL KEY	VICE PRESIDENT	Exercise M	1.3K	+18%	—	$0
Jan 26, 2026	CIPOLLA MICHAEL KEY	VICE PRESIDENT	Other F	660	-2%	$68.89	$45.5K
Jan 26, 2026	CIPOLLA MICHAEL KEY	VICE PRESIDENT	Exercise M	1.3K	+3%	—	$0
Jan 26, 2026	Brett Argirakis KEY	Group President	Exercise M	2.7K	+14%	—	$0
Jan 26, 2026	Brett Argirakis KEY	Group President	Other F	1.2K	-3%	$68.89	$80.1K
Jan 26, 2026	Brett Argirakis KEY	Group President	Exercise M	2.7K	+9%	—	$0
Jan 26, 2026	Erik Aldag KEY	SVP FINANCE AND TREASURY, CFO	Exercise M	1.8K	+14%	—	$0
Jan 26, 2026	Erik Aldag KEY	SVP FINANCE AND TREASURY, CFO	Other F	1.0K	-13%	$68.89	$70.2K
Jan 26, 2026	Erik Aldag KEY	SVP FINANCE AND TREASURY, CFO	Exercise M	1.8K	+30%	—	$0
Jan 23, 2026	Dj Monagle III KEY	Group President	Exercise M	3.8K	+16%	—	$0
Jan 23, 2026	Dj Monagle III KEY	Group President	Other F	2.1K	-2%	$68.77	$144.3K
Jan 23, 2026	Dj Monagle III KEY	Group President	Exercise M	3.8K	+4%	—	$0
Jan 23, 2026	Timothy Jordan KEY	Vice President	Exercise M	2.0K	+16%	—	$0
Jan 23, 2026	Timothy Jordan KEY	Vice President	Other F	1.1K	-14%	$68.77	$72.8K
Jan 23, 2026	Timothy Jordan KEY	Vice President	Exercise M	2.0K	+38%	—	$0
Jan 23, 2026	Jonathan J Hastings KEY	Senior Vice President	Exercise M	3.1K	+36%	—	$0
Jan 23, 2026	Jonathan J Hastings KEY	Senior Vice President	Other F	1.4K	-2%	$68.77	$93.1K
Jan 23, 2026	Jonathan J Hastings KEY	Senior Vice President	Exercise M	3.1K	+5%	—	$0
Jan 23, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Exercise M	11.0K	+16%	—	$0
Jan 23, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Other F	6.1K	-3%	$68.77	$418.9K
Jan 23, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Exercise M	11.0K	+7%	—	$0
Jan 23, 2026	Erin Cutler	VP, Human Resources	Exercise M	1.3K	+16%	—	$0
Jan 23, 2026	Erin Cutler	VP, Human Resources	Other F	608	-8%	$68.77	$41.8K
Jan 23, 2026	Erin Cutler	VP, Human Resources	Exercise M	1.3K	+20%	—	$0
Jan 23, 2026	CIPOLLA MICHAEL KEY	VICE PRESIDENT	Exercise M	1.4K	+17%	—	$0
Jan 23, 2026	CIPOLLA MICHAEL KEY	VICE PRESIDENT	Other F	774	-2%	$68.77	$53.2K
Jan 23, 2026	CIPOLLA MICHAEL KEY	VICE PRESIDENT	Exercise M	1.4K	+4%	—	$0
Jan 23, 2026	Brett Argirakis KEY	Group President	Exercise M	3.2K	+15%	—	$0
Jan 23, 2026	Brett Argirakis KEY	Group President	Other F	1.4K	-4%	$68.77	$97.2K
Jan 23, 2026	Brett Argirakis KEY	Group President	Exercise M	3.2K	+11%	—	$0
Jan 23, 2026	Erik Aldag KEY	SVP FINANCE AND TREASURY, CFO	Exercise M	2.2K	+15%	—	$0
Jan 23, 2026	Erik Aldag KEY	SVP FINANCE AND TREASURY, CFO	Other F	1.2K	-17%	$68.77	$85.3K
Jan 23, 2026	Erik Aldag KEY	SVP FINANCE AND TREASURY, CFO	Exercise M	2.2K	+44%	—	$0
Jan 21, 2026	Dj Monagle III KEY	Group President	Exercise M	3.5K	+13%	—	$0
Jan 21, 2026	Dj Monagle III KEY	Group President	Other F	2.0K	-2%	$66.92	$136.2K
Jan 21, 2026	Dj Monagle III KEY	Group President	Exercise M	3.5K	+4%	—	$0
Jan 21, 2026	Timothy Jordan KEY	Vice President	Exercise M	1.9K	+13%	—	$0
Jan 21, 2026	Timothy Jordan KEY	Vice President	Other F	1.1K	-17%	$66.92	$71.7K
Jan 21, 2026	Timothy Jordan KEY	Vice President	Exercise M	1.9K	+42%	—	$0
Jan 21, 2026	Jonathan J Hastings KEY	Senior Vice President	Exercise M	2.8K	+23%	—	$0
Jan 21, 2026	Jonathan J Hastings KEY	Senior Vice President	Other F	1.3K	-2%	$66.92	$88.2K
Jan 21, 2026	Jonathan J Hastings KEY	Senior Vice President	Exercise M	2.8K	+5%	—	$0
Jan 21, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Exercise M	10.0K	+12%	—	$0
Jan 21, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Other F	5.6K	-3%	$66.92	$376.8K
Jan 21, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Exercise M	10.0K	+6%	—	$0
Jan 21, 2026	Erin Cutler	VP, Human Resources	Exercise M	1.2K	+13%	—	$0
Jan 21, 2026	Erin Cutler	VP, Human Resources	Other F	583	-8%	$66.92	$39.0K
Jan 21, 2026	Erin Cutler	VP, Human Resources	Exercise M	1.2K	+21%	—	$0
Jan 21, 2026	CIPOLLA MICHAEL KEY	VICE PRESIDENT	Exercise M	1.3K	+13%	—	$0
Jan 21, 2026	CIPOLLA MICHAEL KEY	VICE PRESIDENT	Other F	731	-2%	$66.92	$48.9K
Jan 21, 2026	CIPOLLA MICHAEL KEY	VICE PRESIDENT	Exercise M	1.3K	+3%	—	$0
Jan 21, 2026	Brett Argirakis KEY	Group President	Exercise M	3.1K	+13%	—	$0
Jan 21, 2026	Brett Argirakis KEY	Group President	Other F	1.5K	-5%	$66.92	$97.5K
Jan 21, 2026	Brett Argirakis KEY	Group President	Exercise M	3.1K	+11%	—	$0
Jan 21, 2026	Erik Aldag KEY	SVP FINANCE AND TREASURY, CFO	Exercise M	2.2K	+13%	—	$0
Jan 21, 2026	Erik Aldag KEY	SVP FINANCE AND TREASURY, CFO	Other F	1.4K	-21%	$66.92	$90.7K
Jan 21, 2026	Erik Aldag KEY	SVP FINANCE AND TREASURY, CFO	Exercise M	2.2K	+53%	—	$0
Jan 20, 2026	Dj Monagle III KEY	Group President	Grant A	10.7K	New	—	$0
Jan 20, 2026	Dj Monagle III KEY	Group President	Grant A	12.5K	+58%	—	$0
Jan 20, 2026	Timothy Jordan KEY	Vice President	Grant A	6.0K	New	—	$0
Jan 20, 2026	Timothy Jordan KEY	Vice President	Grant A	7.0K	+60%	—	$0
Jan 20, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Grant A	33.5K	New	—	$0
Jan 20, 2026	Douglas T Dietrich KEY	CHAIRMAN AND CEO	Grant A	39.0K	+62%	—	$0
Jan 20, 2026	Erin Cutler	VP, Human Resources	Grant A	3.8K	New	—	$0
Jan 20, 2026	Erin Cutler	VP, Human Resources	Grant A	4.5K	+61%	—	$0
Jan 20, 2026	CIPOLLA MICHAEL KEY	VICE PRESIDENT	Grant A	4.0K	New	—	$0
Jan 20, 2026	CIPOLLA MICHAEL KEY	VICE PRESIDENT	Grant A	4.6K	+58%	—	$0
Jan 20, 2026	Brett Argirakis KEY	Group President	Grant A	10.4K	New	—	$0
Jan 20, 2026	Brett Argirakis KEY	Group President	Grant A	12.1K	+65%	—	$0
Jan 20, 2026	Erik Aldag KEY	SVP FINANCE AND TREASURY, CFO	Grant A	7.3K	New	—	$0
Jan 20, 2026	Erik Aldag KEY	SVP FINANCE AND TREASURY, CFO	Grant A	8.6K	+66%	—	$0
Jan 2, 2026	Carolyn K Pittman	Director	Grant A	120	+1%	—	$0
Jan 2, 2026	Franklin Feder	Director	Grant A	279	+1%	—	$0

About MTX insider trading

This page tracks insider transactions for MINERALS TECHNOLOGIES INC (MTX) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.