CMT

CORE MOLDING TECHNOLOGIES INC

SEC CIK 1026655
$23.43 +14.6% · 90 days
90-day buys
$8K
2 open-market
90-day sells
$0
0 open-market
Net insider flow
+$8K
Net buying
Filings shown
127
Most recent
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At a glance

Over the last 90 days, insiders at CMT have bought a net $8K of stock (2 open-market buys vs 0 sells).

Largest recent trade: Duvall David L. sold $1.02M of CMT, trimming their stake 25%.

Most active filer: Duvall David L., with 42 transactions among the recent filings shown.

Insider transaction history

Form 4 filings for CMT, newest first
View on SEC EDGAR ↗
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Jun 9, 2025 ΔOwn −4.4%

Duvall David L. sold $160.2K of CMT, trimming their stake 4%.

−$160.2K
9,970 sh @ $16
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Jun 6, 2025 ΔOwn −4.7%

Duvall David L. sold $181K of CMT, trimming their stake 5%.

−$181K
11,300 sh @ $16
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Jun 6, 2025 ΔOwn −3.6%

Duvall David L. sold $144.2K of CMT, trimming their stake 4%.

−$144.2K
9,000 sh @ $16
CMT
Buy PALOMAKI ERIC · EVP,Operations · Open-market purchase · filed Mar 19, 2025 ΔOwn +0.6%

Palomaki Eric, CMT's EVP, spent $14K of their own money on 1,000 shares at $14, growing their stake 1%.

+$14K
1,000 sh @ $14
CMT
Buy PALOMAKI ERIC · EVP,Operations · Open-market purchase · filed Mar 19, 2025 ΔOwn +0.6%

Palomaki Eric, CMT's EVP, spent $14K of their own money on 1,000 shares at $14, growing their stake 1%.

+$14K
1,000 sh @ $14
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CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Dec 27, 2024 ΔOwn −1.8%

Duvall David L. sold $74.1K of CMT, trimming their stake 2%.

−$74.1K
4,500 sh @ $16
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Dec 27, 2024 ΔOwn −5.5%

Duvall David L. sold $234.3K of CMT, trimming their stake 6%.

−$234.3K
14,171 sh @ $17
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Dec 23, 2024 ΔOwn −5.1%

Duvall David L. sold $225.1K of CMT, trimming their stake 5%.

−$225.1K
13,919 sh @ $16
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Dec 10, 2024 ΔOwn −3.9%

Duvall David L. sold $179.2K of CMT, trimming their stake 4%.

−$179.2K
10,950 sh @ $16
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Dec 10, 2024 ΔOwn −0.7%

Duvall David L. sold $33.1K of CMT, trimming their stake 1%.

−$33.1K
2,000 sh @ $17
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Sep 16, 2024 ΔOwn −6.9%

Duvall David L. sold $380.6K of CMT, trimming their stake 7%.

−$380.6K
21,220 sh @ $18
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Sep 16, 2024 ΔOwn −8.8%

Duvall David L. sold $531K of CMT, trimming their stake 9%.

−$531K
29,626 sh @ $18
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Aug 27, 2024 ΔOwn −5.6%

Duvall David L. sold $365.9K of CMT, trimming their stake 6%.

−$365.9K
20,000 sh @ $18
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Aug 22, 2024 ΔOwn −4.8%

Duvall David L. sold $326.5K of CMT, trimming their stake 5%.

−$326.5K
18,150 sh @ $18
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Aug 22, 2024 ΔOwn −2.8%

Duvall David L. sold $197.3K of CMT, trimming their stake 3%.

−$197.3K
11,000 sh @ $18
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed May 15, 2024 ΔOwn −0.6%

Duvall David L. sold $43.4K of CMT, trimming their stake 1%.

−$43.4K
2,200 sh @ $20
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed May 15, 2024 ΔOwn −4.3%

Duvall David L. sold $354.7K of CMT, trimming their stake 4%.

−$354.7K
17,513 sh @ $20
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Sep 26, 2023 ΔOwn −3.5%

Duvall David L. sold $420.5K of CMT, trimming their stake 4%.

−$420.5K
15,000 sh @ $28
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Sep 19, 2023 ΔOwn −3.1%

Duvall David L. sold $354.9K of CMT, trimming their stake 3%.

−$354.9K
13,769 sh @ $26
CMT
Sell DUVALL DAVID L. · Director, Chief Executive Officer · Open-market sale · filed Sep 14, 2023 ΔOwn −1.4%

Duvall David L. sold $154.7K of CMT, trimming their stake 1%.

−$154.7K
6,098 sh @ $25
CMT
Buy DUVALL DAVID L. · Director, Chief Executive Officer · Open-market purchase · filed Jun 27, 2023 ΔOwn +0.6%

Duvall David L., CMT's CEO, spent $50.5K of their own money on 2,500 shares at $20, growing their stake 1%.

+$50.5K
2,500 sh @ $20
CMT
Buy Smith Andrew O · Director · Open-market purchase · filed Dec 13, 2022 ΔOwn +0.6%

Smith Andrew O, CMT's Director, spent $5.3K of their own money on 500 shares at $11, growing their stake 1%.

+$5.3K
500 sh @ $11
CMT
Buy Smith Andrew O · Director · Open-market purchase · filed Sep 16, 2022 ΔOwn +2.7%

Smith Andrew O, CMT's Director, spent $23.3K of their own money on 2,000 shares at $12, growing their stake 3%.

+$23.3K
2,000 sh @ $12
CMT
Buy DUVALL DAVID L. · Director, Chief Executive Officer · Open-market purchase · filed Aug 22, 2022 ΔOwn +0.2%

Duvall David L., CMT's CEO, spent $8.1K of their own money on 649 shares at $13.

+$8.1K
649 sh @ $13
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About CMT insider activity

This page tracks every recent Form 4 filed for CORE MOLDING TECHNOLOGIES INC with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.

The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.

Frequently asked questions

How often is CMT insider data updated?

Continuously. We read from SEC EDGAR, so new Form 4 filings for CORE MOLDING TECHNOLOGIES INC usually appear here within minutes of being accepted by the SEC.

What does "net insider flow" mean?

It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.

Why do some rows show grants or option exercises instead of buys?

Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.

Is this investment advice?

No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.