Core Molding Technologies, Inc. (CMT) Insider Trading

Last 12 months

Insiders bought $25k and sold $353k on the open market.

None of the selling was scheduled in advance under a 10b5-1 plan. Director Ralph O Hellmold sold $110k on Aug 7, 11% of their stake, outside a plan.

Net open-market

−$328k

3 buys · 5 sales

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

3 / 2

executives and directors

Last open-market buy

Jun 2026

Jun 29, 2026

Get an email when CMT's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 7	Ralph O Hellmold Director	SoldNo plan	4,268	$25.82	$110k	11%	Form 4
Jun 29	Alex Joseph Panda EVP, Treasurer, Secretary, CFO	Bought	275	$23.59	$6k	0.6%	Form 4
Jun 23 – 25	Thomas R Cellitti Director	SoldNo plan 3 parts	1,413	$24.04 average	$34k	1.5%	Form 4
Jun 17 – 18	Thomas R Cellitti Director	SoldNo plan 2 parts	2,507	$24.00 average	$60k	2.6%	Form 4
Jun 15 – 16	Thomas R Cellitti Director	SoldNo plan 2 parts	2,080	$25.03 average	$52k	2.1%	Form 4
Jun 11 – 12	Thomas R Cellitti Director	SoldNo plan 2 parts	3,900	$24.65 average	$96k	3.8%	Form 4
Mar 20	Eric Palomaki Chief Operating Officer	Bought 2 parts	400	$20.06 average	$8k	0.2%	Form 4
Mar 19	Michael James Gayford EVP of Operations	Bought	500	$20.12	$10k	1.9%	Form 4
Sep 9, 2025	David L. Duvall Chief Executive Officer	SoldNo plan	50,000	$20.32	$1.02M	25%	Form 4
Sep 8, 2025	Matthew Jauchius Director	SoldNo plan	6,020	$19.84	$119k	10%	Form 4
Aug 26, 2025	Alex Joseph Panda EVP, Treasurer, Secretary, CFO	Bought	200	$19.10	$4k	0.7%	Form 4
Aug 25, 2025 – Aug 26, 2025	Thomas R Cellitti Director	SoldNo plan 2 parts	10,000	$18.81 average	$188k	9.4%	Form 4
Aug 25, 2025	Alex Joseph Panda EVP, Treasurer, Secretary, CFO	Bought	200	$19.15	$4k	0.7%	Form 4
Aug 21, 2025	Alex Joseph Panda EVP, Treasurer, Secretary, CFO	Bought	200	$17.90	$4k	0.7%	Form 4
Aug 18, 2025 – Aug 19, 2025	Alex Joseph Panda EVP, Treasurer, Secretary, CFO	Bought 2 parts	200	$17.64 average	$4k	0.7%	Form 4
Aug 13, 2025	Alex Joseph Panda EVP, Treasurer, Secretary, CFO	Bought	200	$17.33	$3k	0.7%	Form 4
Aug 11, 2025	Alex Joseph Panda EVP, Treasurer, Secretary, CFO	Bought	200	$17.06	$3k	0.7%	Form 4
Jun 20, 2025	David L. Duvall Chief Executive Officer	SoldNo plan	4,046	$16.50	$67k	2.0%	Form 4
Jun 13, 2025 – Jun 18, 2025	David L. Duvall Chief Executive Officer	SoldNo plan 3 parts	9,424	$16.55 average	$156k	4.4%	Form 4
Jun 9, 2025 – Jun 10, 2025	David L. Duvall Chief Executive Officer	SoldNo plan 2 parts	6,260	$16.25 average	$102k	2.9%	Form 4
Jun 6, 2025	David L. Duvall Chief Executive Officer	SoldNo plan	9,970	$16.07	$160k	4.4%	Form 4
Jun 4, 2025 – Jun 5, 2025	David L. Duvall Chief Executive Officer	SoldNo plan 2 parts	20,300	$16.02 average	$325k	8.2%	Form 4
Mar 14, 2025 – Mar 17, 2025	Eric Palomaki EVP,Operations	Bought 2 parts	2,000	$14.00 average	$28k	1.3%	Form 4
Dec 24, 2024 – Dec 26, 2024	David L. Duvall Chief Executive Officer	SoldNo plan 2 parts	18,671	$16.52 average	$309k	7.3%	Form 4
Dec 18, 2024 – Dec 20, 2024	David L. Duvall Chief Executive Officer	SoldNo plan 3 parts	15,919	$16.17 average	$257k	5.8%	Form 4
Dec 6, 2024 – Dec 10, 2024	David L. Duvall Chief Executive Officer	SoldNo plan 3 parts	13,950	$16.40 average	$229k	4.9%	Form 4
Nov 25, 2024 – Nov 26, 2024	John P Zimmer EVP, Treasurer, Secretary, CFO	SoldNo plan 3 parts	19,700	$17.75 average	$350k	17%	Form 4

Aug 7No plan
Ralph O Hellmold
Director · sold 4,268 at $25.82
$110k
11% of stake
Jun 29
Alex Joseph Panda
EVP, Treasurer, Secretary, CFO · bought 275 at $23.59
$6k
0.6% of stake
Jun 23 – 25No plan
Thomas R Cellitti
Director · sold 1,413 at avg $24.04
$34k
1.5% of stake
Jun 17 – 18No plan
Thomas R Cellitti
Director · sold 2,507 at avg $24.00
$60k
2.6% of stake
Jun 15 – 16No plan
Thomas R Cellitti
Director · sold 2,080 at avg $25.03
$52k
2.1% of stake
Jun 11 – 12No plan
Thomas R Cellitti
Director · sold 3,900 at avg $24.65
$96k
3.8% of stake
Mar 20
Eric Palomaki
Chief Operating Officer · bought 400 at avg $20.06
$8k
0.2% of stake
Mar 19
Michael James Gayford
EVP of Operations · bought 500 at $20.12
$10k
1.9% of stake
Sep 9, 2025No plan
David L. Duvall
Chief Executive Officer · sold 50,000 at $20.32
$1.02M
25% of stake
Sep 8, 2025No plan
Matthew Jauchius
Director · sold 6,020 at $19.84
$119k
10% of stake
Aug 26, 2025
Alex Joseph Panda
EVP, Treasurer, Secretary, CFO · bought 200 at $19.10
$4k
0.7% of stake
Aug 25, 2025 – Aug 26, 2025No plan
Thomas R Cellitti
Director · sold 10,000 at avg $18.81
$188k
9.4% of stake
Aug 25, 2025
Alex Joseph Panda
EVP, Treasurer, Secretary, CFO · bought 200 at $19.15
$4k
0.7% of stake
Aug 21, 2025
Alex Joseph Panda
EVP, Treasurer, Secretary, CFO · bought 200 at $17.90
$4k
0.7% of stake
Aug 18, 2025 – Aug 19, 2025
Alex Joseph Panda
EVP, Treasurer, Secretary, CFO · bought 200 at avg $17.64
$4k
0.7% of stake
Aug 13, 2025
Alex Joseph Panda
EVP, Treasurer, Secretary, CFO · bought 200 at $17.33
$3k
0.7% of stake
Aug 11, 2025
Alex Joseph Panda
EVP, Treasurer, Secretary, CFO · bought 200 at $17.06
$3k
0.7% of stake
Jun 20, 2025No plan
David L. Duvall
Chief Executive Officer · sold 4,046 at $16.50
$67k
2.0% of stake
Jun 13, 2025 – Jun 18, 2025No plan
David L. Duvall
Chief Executive Officer · sold 9,424 at avg $16.55
$156k
4.4% of stake
Jun 9, 2025 – Jun 10, 2025No plan
David L. Duvall
Chief Executive Officer · sold 6,260 at avg $16.25
$102k
2.9% of stake
Jun 6, 2025No plan
David L. Duvall
Chief Executive Officer · sold 9,970 at $16.07
$160k
4.4% of stake
Jun 4, 2025 – Jun 5, 2025No plan
David L. Duvall
Chief Executive Officer · sold 20,300 at avg $16.02
$325k
8.2% of stake
Mar 14, 2025 – Mar 17, 2025
Eric Palomaki
EVP,Operations · bought 2,000 at avg $14.00
$28k
1.3% of stake
Dec 24, 2024 – Dec 26, 2024No plan
David L. Duvall
Chief Executive Officer · sold 18,671 at avg $16.52
$309k
7.3% of stake
Dec 18, 2024 – Dec 20, 2024No plan
David L. Duvall
Chief Executive Officer · sold 15,919 at avg $16.17
$257k
5.8% of stake
Dec 6, 2024 – Dec 10, 2024No plan
David L. Duvall
Chief Executive Officer · sold 13,950 at avg $16.40
$229k
4.9% of stake
Nov 25, 2024 – Nov 26, 2024No plan
John P Zimmer
EVP, Treasurer, Secretary, CFO · sold 19,700 at avg $17.75
$350k
17% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch CMT, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in CMT's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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