Robert Clark Insider Trades & Stock Holdings

MTX · Latest filing Jun 18, 2026

Robert Clark at MTX has 2 Form 4 trades on file since Jun 18, 2026. Latest filing: acquired 51 shares of $MTX on Jun 18, 2026.

Trades on file: 2
Open-market bought: $0
Open-market sold: $0
Net open-market: $0
Latest filing: Jun 18, 2026

All insider trades by Robert Clark

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Jun 18, 2026	$MTX	Buy (Grant or award)	51	$0	—			+0.2%	-7.2%				Read
Jun 18, 2026	$MTX	Buy (Grant or award)	51	$0	—			+0.2%	-7.2%				Read

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Robert Clark traded

$MTX

Frequently asked questions

What was Robert Clark's latest insider trade?

acquired 51 shares of $MTX on Jun 18, 2026.

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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.

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