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NYSE · CIK 0001026655

CMT CORE MOLDING TECHNOLOGIES INC

Insider trading from SEC Form 4. Last filing Jun 25, 2026. Close $23.27 on Oct 9, 2026, +33% from the 52-week low and -18% from the high.

CORE MOLDING TECHNOLOGIES INC (CMT) has 57 SEC Form 4 filings on file from 14 insiders, the latest filed on Jun 25, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.

25 open-market trades have been scored at CMT. The newest: Thomas R Cellitti (director) sold $34k of stock on Jun 23, 2026, filed Jun 25, 2026, scored 21 (weak). The largest of the 25 shown: David L. Duvall (Chief Executive Officer) sold $1.0M on Sep 9, 2025, scored 68 (notable). 2 insiders bought within 14 days of each other around Mar 20, 2026.

CMT closed at $23.27 on Oct 9, 2026, 33% above its 52-week low and 18% below its 52-week high.

8 Form 144 notices of planned sales are on file, the latest filed Sep 12, 2025.

Last 90 days

Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
14
with a Form 4 at this company

Price and insider trades, last year

CMTOct 9, 2026 · close 23.27

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at CORE MOLDING TECHNOLOGIES INC, scored.

ScoreInsiderValueHoldingsPrice contextFiled
21WeakThomas R Cellitti
director
sell
$34k
1,413 shares
-2%+44% from low-16% from high
22WeakThomas R Cellitti
director
sell
$60k
2,507 shares
-3%+42% from low-18% from high
22WeakThomas R Cellitti
director
sell
$52k
2,080 shares
-2%+51% from low-12% from high
25WeakThomas R Cellitti
director
sell
$96k
3,900 shares
-4%+50% from low-13% from high
23WeakEric Palomaki
Chief Operating Officer
buy
$8,020
400 shares
+0%+42% from low-8% from high
23WeakMichael James Gayford
EVP of Operations
buy
$10k
500 shares
+2%+45% from low-7% from high
45ModerateMatthew Jauchius
director
sell
$119k
6,020 shares
-10%+52% from low0% from high
68NotableDavid L. Duvall
Chief Executive Officer
sell
$1.0M
50,000 shares
-25%+48% from low-2% from high
22WeakAlex Joseph Panda
EVP, Treasurer, Secretary, CFO
buy
$3,820
200 shares
+1%+48% from low-1% from high
35WeakThomas R Cellitti
director
sell
$188k
10,000 shares
-9%+44% from low-4% from high
22WeakAlex Joseph Panda
EVP, Treasurer, Secretary, CFO
buy
$3,829
200 shares
+1%+44% from low-4% from high
22WeakAlex Joseph Panda
EVP, Treasurer, Secretary, CFO
buy
$3,579
200 shares
+1%+40% from low-1% from high
22WeakAlex Joseph Panda
EVP, Treasurer, Secretary, CFO
buy
$3,528
200 shares
+1%+37% from low-3% from high
22WeakAlex Joseph Panda
EVP, Treasurer, Secretary, CFO
buy
$3,465
200 shares
+1%+32% from low-7% from high
17WeakAlex Joseph Panda
EVP, Treasurer, Secretary, CFO
buy
$3,411
200 shares
+1%+31% from low-8% from high
33WeakDavid L. Duvall
Chief Executive Officer
sell
$67k
4,046 shares
-2%+26% from low-11% from high
36WeakDavid L. Duvall
Chief Executive Officer
sell
$156k
9,424 shares
-4%+26% from low-11% from high
35WeakDavid L. Duvall
Chief Executive Officer
sell
$102k
6,260 shares
-3%+22% from low-14% from high
36WeakDavid L. Duvall
Chief Executive Officer
sell
$160k
9,970 shares
-4%+23% from low-13% from high
40ModerateDavid L. Duvall
Chief Executive Officer
sell
$325k
20,300 shares
-8%+23% from low-13% from high
20WeakEric Palomaki
EVP,Operations
buy
$28k
2,000 shares
+1%-
39WeakDavid L. Duvall
Chief Executive Officer
sell
$308k
18,671 shares
-7%-
38WeakDavid L. Duvall
Chief Executive Officer
sell
$257k
15,919 shares
-6%-
46ModerateDavid L. Duvall
Chief Executive Officer
sell
$229k
13,950 shares
-5%-
50ModerateJohn P Zimmer
EVP, Treasurer, Secretary, CFO
sell
$350k
19,700 shares
-17%-

Planned sales

Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales

FiledSellerSharesValueSale datePast 3 months
Sep 12, 2025 DUVALL DAVID L.
Officer, Director
10,000
0.11% of outstanding
$211kSep 12, 2025$1.2M
Sep 9, 2025 DUVALL DAVID L.
Officer, Director
50,000
0.56% of outstanding
$1.0MSep 9, 2025$324k
Sep 8, 2025 Jauchius Matthew
Director
6,020
0.07% of outstanding
$119kSep 8, 2025none
Aug 25, 2025 CELLITTI THOMAS R
Director
10,000
0.11% of outstanding
$195kAug 25, 2025none
Jun 3, 2025 DUVALL DAVID L.
Officer, Director
50,000
0.56% of outstanding
$806kJun 4, 2025none
Jun 2, 2025 Zimmer John P
Officer
37,209
0.41% of outstanding
$613kJun 2, 2025none
Dec 6, 2024 DUVALL DAVID L.
Officer
50,000
0.56% of outstanding
$829kDec 6, 2024$912k
Nov 25, 2024 Zimmer John P
Officer
30,000
0.34% of outstanding
$535kNov 25, 2024none

Transactions

The newest 50 of 103 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Jun 23, 2026Thomas R Cellitti
director
SOpen-market sale
Common Stock
-513$24.02$12k93,293Jun 25, 2026
Jun 24, 2026Thomas R Cellitti
director
SOpen-market sale
Common Stock
-750$24.07$18k92,543Jun 25, 2026
Jun 25, 2026Thomas R Cellitti
director
SOpen-market sale
Common Stock
-150$24.00$3,60092,393Jun 25, 2026
Jun 17, 2026Thomas R Cellitti
director
SOpen-market sale
Common Stock
-2,495$24.00$60k93,818Jun 22, 2026
Jun 18, 2026Thomas R Cellitti
director
SOpen-market sale
Common Stock
-12$24.00$28893,806Jun 22, 2026
Jun 15, 2026Thomas R Cellitti
director
SOpen-market sale
Common Stock
-2,000$25.07$50k96,393Jun 17, 2026
Jun 16, 2026Thomas R Cellitti
director
SOpen-market sale
Common Stock
-80$24.00$1,92096,313Jun 17, 2026
Jun 11, 2026Thomas R Cellitti
director
SOpen-market sale
Common Stock
-900$24.23$22k101,393Jun 15, 2026
Jun 12, 2026Thomas R Cellitti
director
SOpen-market sale
Common Stock
-3,000$24.77$74k98,393Jun 15, 2026
Mar 27, 2026Eric Palomaki
Chief Operating Officer
FTax withholding
Common Stock
-2,549$18.77$48k166,350Mar 31, 2026
Mar 27, 2026David L. Duvall
Chief Executive Officer
FTax withholding
Common Stock
-5,595$18.77$105k147,167Mar 31, 2026
Mar 27, 2026Arnold Alanis
EVP of Operations
FTax withholding
Common Stock
-370$18.77$6,94526,108Mar 31, 2026
Mar 27, 2026Stephanie Pulliam
EVP, Human Resources
FTax withholding
Common Stock
-199$18.77$3,73518,946Mar 31, 2026
Mar 27, 2026Michael James Gayford
EVP of Operations
FTax withholding
Common Stock
-962$19.40$19k20,730Mar 31, 2026
Mar 27, 2026Alex Joseph Panda
EVP, Treasurer, Secretary, CFO
FTax withholding
Common Stock
-501$18.77$9,40445,521Mar 31, 2026
Mar 27, 2026Alex Joseph Panda
EVP, Treasurer, Secretary, CFO
FTax withholding
Common Stock
-159$18.77$2,98445,362Mar 31, 2026
Mar 27, 2026David L. Duvall
Chief Executive Officer
FTax withholding
Common Stock
-1,772$18.77$33k145,395Mar 31, 2026
Mar 27, 2026Arnold Alanis
EVP of Operations
FTax withholding
Common Stock
-118$18.77$2,21525,990Mar 31, 2026
Mar 27, 2026Stephanie Pulliam
EVP, Human Resources
FTax withholding
Common Stock
-613$19.15$12k18,333Mar 31, 2026
Mar 27, 2026Michael James Gayford
EVP of Operations
FTax withholding
Common Stock
-102$19.40$1,97920,628Mar 31, 2026
Mar 27, 2026Eric Palomaki
Chief Operating Officer
FTax withholding
Common Stock
-807$18.77$15k165,543Mar 31, 2026
Mar 27, 2026Eric Palomaki
Chief Operating Officer
FTax withholding
Common Stock
-1,748$20.02$35k163,795Mar 31, 2026
Mar 27, 2026David L. Duvall
Chief Executive Officer
FTax withholding
Common Stock
-3,988$20.02$80k141,407Mar 31, 2026
Mar 27, 2026Arnold Alanis
EVP of Operations
FTax withholding
Common Stock
-276$20.02$5,52625,714Mar 31, 2026
Mar 27, 2026Alex Joseph Panda
EVP, Treasurer, Secretary, CFO
FTax withholding
Common Stock
-344$20.02$6,88745,018Mar 31, 2026
Mar 27, 2026Michael James Gayford
EVP of Operations
FTax withholding
Common Stock
-725$19.40$14k19,903Mar 31, 2026
Mar 27, 2026Eric Palomaki
Chief Operating Officer
FTax withholding
Common Stock
-2,035$19.15$39k161,760Mar 31, 2026
Mar 27, 2026David L. Duvall
Chief Executive Officer
FTax withholding
Common Stock
-4,417$19.15$85k136,990Mar 31, 2026
Mar 27, 2026Arnold Alanis
EVP of Operations
FTax withholding
Common Stock
-303$19.15$5,80225,411Mar 31, 2026
Mar 27, 2026Alex Joseph Panda
EVP, Treasurer, Secretary, CFO
FTax withholding
Common Stock
-703$19.15$13k44,315Mar 31, 2026
Mar 27, 2026Michael James Gayford
EVP of Operations
FTax withholding
Common Stock
-400$19.40$7,76019,503Mar 31, 2026
Mar 20, 2026Eric Palomaki
Chief Operating Officer
POpen-market purchase
Common Stock
+200$20.15$4,029168,699Mar 20, 2026
Mar 20, 2026Eric Palomaki
Chief Operating Officer
POpen-market purchase
Common Stock
+200$19.96$3,991168,899Mar 20, 2026
Mar 19, 2026Michael James Gayford
EVP of Operations
POpen-market purchase
Common Stock
+500$20.12$10k27,167Mar 19, 2026
Mar 11, 2026Arnold Alanis
EVP of Operations
AGrant or award
Common Stock
+4,846$0.00$030,752Mar 13, 2026
Mar 11, 2026Alexander Bantz
Chief Commercial Officer
AGrant or award
Common Stock
+5,400$0.00$026,394Mar 13, 2026
Mar 11, 2026Thomas R Cellitti
director
AGrant or award
Common Stock
+6,128$0.00$0102,293Mar 13, 2026
Mar 11, 2026Ralph O Hellmold
director
AGrant or award
Common Stock
+4,179$0.00$037,769Mar 13, 2026
Mar 11, 2026Matthew Jauchius
director
AGrant or award
Common Stock
+4,590$0.00$056,112Mar 13, 2026
Mar 11, 2026Salvador Minarro
director
AGrant or award
Common Stock
+4,179$0.00$014,435Mar 13, 2026
Mar 11, 2026Andrew O Smith
director
AGrant or award
Common Stock
+4,436$0.00$0100,926Mar 13, 2026
Mar 11, 2026David L. Duvall
Chief Executive Officer
AGrant or award
Common Stock
+3,982$19.15$76k152,762Mar 13, 2026
Mar 11, 2026Sandra Lee Kowaleski
director
AGrant or award
Common Stock
+4,436$0.00$035,071Mar 13, 2026
Mar 11, 2026Stephanie Pulliam
EVP, Human Resources
AGrant or award
Common Stock
+4,846$0.00$024,416Mar 13, 2026
Jan 12, 2026Alex Joseph Panda
EVP, Treasurer, Secretary, CFO
AGrant or award
Common Stock
+6,000$0.00$039,427Mar 13, 2026
Jan 12, 2026Eric Palomaki
Chief Operating Officer
AGrant or award
Common Stock
+12,000$0.00$0153,253Mar 13, 2026
Mar 11, 2026Michael James Gayford
EVP of Operations
AGrant or award
Common Stock
+4,846$0.00$026,353Mar 13, 2026
Mar 11, 2026Arnold Alanis
EVP of Operations
AGrant or award
Common Stock
+397$19.15$7,60331,149Mar 13, 2026
Mar 11, 2026Eric Palomaki
Chief Operating Officer
AGrant or award
Common Stock
+13,462$0.00$0166,715Mar 13, 2026
Mar 11, 2026Michael James Gayford
EVP of Operations
AGrant or award
Common Stock
+314$19.15$6,01326,667Mar 13, 2026
50 of 103 rows shown.

Insiders

Everyone who has filed a Form 4 here.

Questions about CMT

Answered from the filings on this page, as of the latest one.

Are insiders buying CMT?

No. In the last 90 days no insider at CORE MOLDING TECHNOLOGIES INC bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.

Who was the last insider to trade CMT on the open market?

Thomas R Cellitti (director) sold $34k of CMT on Jun 23, 2026 and filed the Form 4 on Jun 25, 2026. InsiderTell scored 21 (weak).

How many insiders file Form 4 at CORE MOLDING TECHNOLOGIES INC?

14 people have filed a Form 4 at CORE MOLDING TECHNOLOGIES INC, among them Arnold Alanis (EVP of Operations), Alexander Bantz (Chief Commercial Officer), Thomas R Cellitti (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.