MTX ($MTX) Insider Trading & Smart Money Activity

MTX · Specialty Chemicals · Latest filing Jul 10, 2026

$MTX has 10 insider trades and 1 congress trade on file. Insiders filed 10 Form 4 transactions in the last 12 months, none of them open-market purchases or sales.

Insider buyers (12 mo)

0

Insider sellers (12 mo)

0

Net insider $ (12 mo)

$0

Congress trades (12 mo)

1

13F moves on file

0

Analyst ratings on file

0

MTX insider buying and selling by quarter

Quarter	Insider buys	Insider sales	Congress buys / sales	13F added / cut
Q1 2026	0	0	0 / 0	0 / 0
Q2 2026	0	0	0 / 0	0 / 0
Q3 2026	0	0	1 / 0	0 / 0
Q4 2026	0	0	0 / 0	0 / 0

Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.

All MTX insider, congress, 13F and analyst activity

All Insiders Congress

Date	Source	Who	Action	Shares	Value / amount	ΔOwn	1W	1M	6M	Filing	Story
Jul 10, 2026	Congress	Gilbert Ray Cisneros Jr.	Purchase		$1,001 - $15,000		+3.4%	+2.7%			—
Jun 18, 2026	Insider	Marc Robinson	Buy (Grant or award)	41 sh			+0.2%	-7.2%			—
Jun 18, 2026	Insider	Marc Robinson	Buy (Grant or award)	41 sh			+0.2%	-7.2%			Read
Jun 18, 2026	Insider	Carolyn Pittman	Buy (Grant or award)	32 sh			+0.2%	-7.2%			Read
Jun 18, 2026	Insider	Carolyn Pittman	Buy (Grant or award)	32 sh			+0.2%	-7.2%			Read
Jun 18, 2026	Insider	Rocky Motwani	Buy (Grant or award)	12 sh			+0.2%	-7.2%			Read
Jun 18, 2026	Insider	Robert Clark	Buy (Grant or award)	51 sh			+0.2%	-7.2%			Read
Jun 18, 2026	Insider	Robert Clark	Buy (Grant or award)	51 sh			+0.2%	-7.2%			Read
Jun 18, 2026	Insider	John Carmola	Buy (Grant or award)	43 sh			+0.2%	-7.2%			Read
Jun 18, 2026	Insider	John Carmola	Buy (Grant or award)	43 sh			+0.2%	-7.2%			Read
Jun 18, 2026	Insider	Joseph Breunig	Buy (Grant or award)	33 sh			+0.2%	-7.2%			Read

1W / 1M / 6M = how MTX moved from the trade or filing date.

Insider trading in MTX: who is buying and selling

Insider	Role	Trades	Open-market net	Shares held	Last trade
Marc Robinson		2	—		Jun 18, 2026
Carolyn Pittman		2	—		Jun 18, 2026
Robert Clark		2	—		Jun 18, 2026
John Carmola		2	—		Jun 18, 2026
Rocky Motwani		1	—		Jun 18, 2026
Joseph Breunig		1	—		Jun 18, 2026

Members of Congress trading MTX

• Gilbert Ray Cisneros Jr.1

Frequently asked questions

What is the latest insider trade in MTX?

Marc Robinson filed a buy (grant or award) of 41 sh on Jun 18, 2026.

Which members of Congress traded MTX?

1 disclosed trade by Gilbert Ray Cisneros Jr.. The latest was on Jul 10, 2026.

Other specialty chemicals stocks

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Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.