Core Molding Technologies, Inc.
Core Molding Technologies, Inc. (CMT) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · CMT · as of Sep 30, 2025
Ownership Breakdown
94
Institutional Holders
$131.78M
Total Inst. Value
▲ $28.89M vs Q2
8.90M
Shares Outstanding
freeFloat 80.08%
6.41M
13F Shares Held
▲ 210,805 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
CMT largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
RENAISSANCE TECHNOLOGIES LLC plastics products, nec | 511.2K | 5.93% | 5.93% | $10.51B | Nov 13, 2025 | ▲ 12.2K |
BLACKROCK, INC. plastics products, nec | 475.3K | 5.51% | 5.51% | $9.77B | Nov 12, 2025 | ▼ 24.6K |
VANGUARD GROUP INC plastics products, nec | 459.1K | 5.33% | 5.33% | $9.44B | Nov 7, 2025 | ▼ 3.7K |
TIETON CAPITAL MANAGEMENT, LLC plastics products, nec | 440.9K | 5.11% | 5.11% | $9.06B | Nov 12, 2025 | ▲ 17.1K |
DIMENSIONAL FUND ADVISORS LP plastics products, nec | 383.0K | 4.44% | 4.44% | $7.87B | Nov 12, 2025 | ▼ 2.8K |
GAMCO INVESTORS, INC. ET AL plastics products, nec | 382.0K | 4.43% | 4.43% | $7.85B | Nov 12, 2025 | ▼ 2.5K |
GLOBAL VALUE INVESTMENT CORP. plastics products, nec | 309.8K | 3.59% | 3.59% | $6.37B | Nov 13, 2025 | ▲ 1.2K |
GABELLI FUNDS LLC plastics products, nec | 308.0K | 3.57% | 3.57% | $6.33B | Nov 12, 2025 | ▼ 2.5K |
NEEDHAM INVESTMENT MANAGEMENT LLC plastics products, nec | 253.3K | 2.94% | 2.94% | $5.21B | Nov 14, 2025 | ▼ 1.6K |
ROYCE & ASSOCIATES LP plastics products, nec | 231.5K | 2.69% | 2.69% | $4.76B | Nov 12, 2025 | ▲ 34.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
18
Increased
+244.3K shares3
New Positions
first time holders22
Decreased
−117.2K shares0
Sold Out
fully exitedNet shares change (top 50)
+127.1K
+244.3K / −117.2K
Net new holders
-1
3 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
CMT insider trading · insider activity
Source: SEC Form 4
22
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Alanis Arnold EVP of Operations | Mar 27, 2026 | Tax Withhold | 370 | $18.77 | $6.9K | 26.1K | Form 4 ↗ |
Alanis Arnold EVP of Operations | Mar 27, 2026 | Tax Withhold | 118 | $18.77 | $2.2K | 26.0K | Form 4 ↗ |
Alanis Arnold EVP of Operations | Mar 27, 2026 | Tax Withhold | 276 | $20.02 | $5.5K | 25.7K | Form 4 ↗ |
Alanis Arnold EVP of Operations | Mar 27, 2026 | Tax Withhold | 303 | $19.15 | $5.8K | 25.4K | Form 4 ↗ |
Pulliam Stephanie EVP, Human Resources | Mar 27, 2026 | Tax Withhold | 199 | $18.77 | $3.7K | 18.9K | Form 4 ↗ |
Pulliam Stephanie EVP, Human Resources | Mar 27, 2026 | Tax Withhold | 613 | $19.15 | $11.7K | 18.3K | Form 4 ↗ |
Gayford Michael James EVP of Operations | Mar 27, 2026 | Tax Withhold | 962 | $19.40 | $18.7K | 20.7K | Form 4 ↗ |
Gayford Michael James EVP of Operations | Mar 27, 2026 | Tax Withhold | 102 | $19.40 | $2.0K | 20.6K | Form 4 ↗ |
Gayford Michael James EVP of Operations | Mar 27, 2026 | Tax Withhold | 725 | $19.40 | $14.1K | 19.9K | Form 4 ↗ |
Gayford Michael James EVP of Operations | Mar 27, 2026 | Tax Withhold | 400 | $19.40 | $7.8K | 19.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Core Molding Technologies, Inc. (CMT) is primarily owned by institutional investors, who hold approximately 72.0% of total shares outstanding. Company insiders own approximately 19.92%, while retail and public investors account for the remaining 8.02%.
The largest institutional shareholder of Core Molding Technologies, Inc. is RENAISSANCE TECHNOLOGIES LLC, holding approximately 511,247 shares — equal to 5.93% of outstanding shares — as of September 30, 2025.
A total of 94 institutional investors currently hold CMT stock, with a combined institutional value of approximately $131,778,611 as of the most recent 13F filing period.
Frequently asked questions
CMT ownershipCore Molding Technologies, Inc. (CMT) is primarily owned by institutional investors, who hold approximately 72.0% of shares. The largest shareholder is RENAISSANCE TECHNOLOGIES LLC with a 5.93% stake. Company insiders hold 19.92%. Data sourced from SEC Form 13F as of September 30, 2025.