53% buyers of institutions opening or closing positions this quarter
1 more new buyers than exits, ownership rose 6.91 percentage points vs the prior quarter, and 1 well-known fund manager in the top 25.
53% buyers of institutions opening or closing positions this quarter
56.5% institutional ownership
22NW, LP portfolio allocation
Institutional ownership vs Chemicals - Specialty peers
No Form 4 insider transactions on file
Latest positioning in CMT across 13F flow, ownership shift, marquee holders, and holder-count growth.
Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in CMT held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | RENAISSANCE TECHNOLOGIES LLC | 488K | $10.9M | -2.9% | 5.308% | 0.02% |
| 2 | BlackRock, Inc. | 473K | $10.6M | -1.9% | 5.136% | 0.00% |
| 3 | DIMENSIONAL FUND ADVISORS LP | 391K | $8.8M | +0.8% | 4.251% | 0.00% |
| 4 | GAMCO INVESTORS, INC. ET AL | 376K | $8.4M | -0.2% | 4.083% | 0.08% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 342K | $7.7M | — | 3.712% | 0.00% |
| 6 | GABELLI FUNDS LLC | 307K | $6.9M | 0.0% | 3.330% | 0.05% |
| 7 | ROYCE & ASSOCIATES LP | 258K | $5.8M | +9.1% | 2.798% | 0.06% |
| 8 | NEEDHAM INVESTMENT MANAGEMENT LLC | 252K | $5.7M | -0.4% | 2.742% | 0.29% |
| 9 | SEI INVESTMENTS CO | 226K | $5.1M | +112.6% | 2.451% | 0.00% |
| 10 | 22NW, LP | 223K | $5.0M | 0.0% | 2.420% | 3.42% |
| 11 | AMERICAN CENTURY COMPANIES INC | 219K | $4.9M | -0.2% | 2.380% | 0.00% |
| 12 | DIAMOND HILL CAPITAL MANAGEMENT INC | 195K | $4.4M | -1.4% | 2.123% | 0.03% |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 182K | $4.1M | +1.5% | 1.974% | 0.00% |
| 14 | STATE STREET CORP | 164K | $3.7M | +1.1% | 1.784% | 0.00% |
| 15 | BARD ASSOCIATES INC | 145K | $3.3M | -0.2% | 1.578% | 0.82% |
| 16 | Pacific Ridge Capital Partners, LLC | 144K | $3.2M | -0.4% | 1.568% | 0.70% |
| 17 | Allspring Global Investments Holdings, LLC | 109K | $2.4M | -13.7% | 1.180% | 0.00% |
| 18 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 108K | $2.4M | +0.8% | 1.177% | 0.05% |
| 19 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 78K | $1.8M | -17.4% | 0.850% | 0.01% |
| 20 | VANGUARD PORTFOLIO MANAGEMENT LLC | 76K | $1.7M | — | 0.826% | 0.00% |
| 21 | Teton Advisors, LLC | 71K | $1.6M | -0.4% | 0.770% | 1.12% |
| 22 | NORTHERN TRUST CORP | 61K | $1.4M | -0.7% | 0.662% | 0.00% |
| 23 | MACKENZIE FINANCIAL CORP | 60K | $1.3M | +1.3% | 0.649% | 0.00% |
| 24 | Empowered Funds, LLC | 54K | $1.2M | +6.0% | 0.591% | 0.01% |
| 25 | RITHOLTZ WEALTH MANAGEMENT | 54K | $1.2M | -9.2% | 0.587% | 0.02% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in CMT — a direct measure of their conviction.
Filings activity in CMT during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 94 | +1.1% | 56.46% | +6.91 pp | $128M | +14% |
| Q4 2025 | 93 | +1.1% | 49.55% | 3.64 pp | $112M | 6.8% |
| Q3 2025 | 92 | 2.1% | 53.19% | +11.78 pp | $121M | +28% |
| Q2 2025 | 94 | 1.1% | 41.41% | +4.58 pp | $94M | +12% |
| Q1 2025 | 95 | +14% | 36.83% | 2.92 pp | $84M | 7.3% |
| Q4 2024 | 83 | 3.5% | 39.75% | +0.39 pp | $90M | +1.0% |
| Q3 2024 | 86 | 2.3% | 39.36% | +1.65 pp | $89M | +4.4% |
| Q2 2024 | 88 | — | 37.71% | — | $86M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
No recent Form 4 insider transactions on file for CMT.
Quick answers to the most common questions about buying CMT stock.
Based on Q1 2026 13F filings, institutional ownership of Core Molding Technologies, Inc. stands at 56.5%, held across 94 reporting institutions.
RENAISSANCE TECHNOLOGIES LLC is the largest reported institutional holder of CMT, with approximately 488,447 shares worth $0.01B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of CMT, including RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for CMT is 60 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
10 institutions opened new positions in CMT during Q1 2026, while 9 fully exited. 68 added to existing positions and 15 trimmed.
CMT institutional ownership rose by 6.91 percentage points quarter-over-quarter, with a net change of +1 holders.
The top 10 institutions account for 58.3% of all reported 13F value in CMT, and the top 25 account for 88.4%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.