MARINE PRODUCTS CORP MPX
$8.18
-0.6% 52w: $6.89 – $9.61
Latest 13F among current holders filed 1 month ago (Jul 8, 2026)
Price — last 12 months
research preview data6.898.259.61
Aug 18, 2025 May 14, 2026
Institutional holders
75
+1 QoQ
13F value
$40.8M
-13.0% QoQ
Smart-money holders
0
signal tier ≥ 2
New smart buyers
0
Q1 2026
Options barometer
11.0×
$61K calls / $6K puts
Institutional value by quarter
Number of holders
Who owns MPX?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | Quant stat arb | 767.5K | $5.6M | — | +2.8% |
| BlackRock, Inc. | Index provider | 625.5K | $4.5M | 0.0% | -0.9% |
| GAMCO INVESTORS, INC. ET AL | Other | 508.6K | $3.7M | 0.0% | +1.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | Diversified mechanical | 450.3K | $3.3M | — | — |
| DEPRINCE RACE & ZOLLO INC | Other | 446.4K | $3.2M | — | +7.2% |
| Russell Investments Group, Ltd. | Diversified mechanical | 387.6K | $2.8M | 0.0% | +25.3% |
| De Lisle Partners LLP | Other | 363.7K | $2.6M | — | Held |
| GEODE CAPITAL MANAGEMENT, LLC | Index provider | 260.6K | $1.9M | — | +4.3% |
| GABELLI FUNDS LLC | Diversified mechanical | 232.5K | $1.7M | — | Held |
| Teton Advisors, LLC | Other | 223.0K | $1.6M | — | -0.4% |
| STATE STREET CORP | Index provider | 181.4K | $1.3M | 0.0% | -1.0% |
| Bank of New York Mellon Corp | Diversified mechanical | 158.8K | $1.2M | 0.0% | +9.9% |
| K2 PRINCIPAL FUND, L.P. | Quant stat arb | 120.2K | $874K | — | New |
| NORTHERN TRUST CORP | Index provider | 85.8K | $624K | 0.0% | -5.4% |
| HANOVER ADVISORS INC | Wealth advisor | 78.1K | $568K | 0.2% | Held |
| VANGUARD FIDUCIARY TRUST CO | Diversified mechanical | 72.0K | $523K | — | — |
| RENAISSANCE TECHNOLOGIES LLC | Quant stat arb | 66.0K | $480K | — | -2.7% |
| ABC ARBITRAGE SA | Quant stat arb | 62.1K | $451K | — | New |
| AMERICAN CENTURY COMPANIES INC | Diversified mechanical | 54.4K | $396K | — | -28.3% |
| TRUIST FINANCIAL CORP | Diversified mechanical | 54.0K | $393K | 0.0% | Held |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Diversified mechanical | 51.9K | $377K | — | — |
| GOLDMAN SACHS GROUP INC | Bank broker | 43.4K | $315K | 0.0% | -1.7% |
| Virtu Financial LLC | Market maker | 31.2K | $227K | — | New |
| MORGAN STANLEY | Bank broker | 30.7K | $223K | 0.0% | -68.2% |
| Pinnacle Financial Partners, Inc. | Diversified mechanical | 30.6K | $222K | 0.0% | Held |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Index provider | 25.7K | $187K | — | -0.1% |
| Ancora Advisors LLC | Diversified mechanical | 25.2K | $183K | 0.0% | New |
| PRICE T ROWE ASSOCIATES INC /MD/ | Diversified mechanical | 20.4K | $148K | 0.0% | +26.0% |
| Nuveen, LLC | Diversified mechanical | 19.5K | $142K | 0.0% | +0.6% |
| UBS Group AG | Bank broker | 15.6K | $113K | 0.0% | +281.2% |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | Wealth advisor | 14.4K | $104K | — | +0.3% |
| ALLIANCEBERNSTEIN L.P. | Long only active | 10.4K | $91K | 0.0% | Held |
| BANK OF AMERICA CORP /DE/ | Bank broker | 12.2K | $89K | 0.0% | +14.1% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Market maker | 12.0K | $87K | 0.0% | +19.7% |
| RHUMBLINE ADVISERS | Diversified mechanical | 10.7K | $78K | 0.0% | -0.2% |
| OSAIC HOLDINGS, INC. | Wealth advisor | 6.3K | $46K | 0.0% | -6.8% |
| FMR LLC | Long only active | 4.7K | $34K | 0.0% | -44.0% |
| Tower Research Capital LLC (TRC) | Market maker | 4.7K | $34K | 0.0% | +308.0% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | Index provider | 4.3K | $31K | — | +2.4% |
| CANADA LIFE ASSURANCE Co | Diversified mechanical | 4.2K | $31K | 0.0% | +4.0% |
| NEW YORK STATE COMMON RETIREMENT FUND | Diversified mechanical | 4.2K | $30K | — | Held |
| JPMORGAN CHASE & CO | Bank broker | 3.8K | $27K | 0.0% | -6.9% |
| WELLS FARGO & COMPANY/MN | Bank broker | 3.3K | $24K | 0.0% | -66.8% |
| Police & Firemen's Retirement System of New Jersey | Diversified mechanical | 3.1K | $22K | — | Held |
| Vanguard Global Advisers, LLC | Diversified mechanical | 3.0K | $22K | — | — |
| BNP PARIBAS FINANCIAL MARKETS | Bank broker | 2.3K | $16K | 0.0% | +0.3% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Bank broker | 2.2K | $16K | 0.0% | +64.1% |
| BARCLAYS PLC | Bank broker | 2.2K | $16K | 0.0% | -83.9% |
| ROYAL BANK OF CANADA | Bank broker | 1.0K | $7K | 0.0% | -67.7% |
| Ameritas Investment Partners, Inc. | Diversified mechanical | 813 | $6K | 0.0% | Held |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.