MARINE PRODUCTS CORP (MPX) Institutional Ownership Changes & 13F Activity
MARINE PRODUCTS CORP (MPX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Dimensional Fund Advisors Lp, De Lisle Partners Llp, Russell Investments Group, Ltd., State Street Corp, and Morgan Stanley.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Sunbelt Securities, Inc. | Buy | +4 | — | 4 | $35.00 | Q4 2025 | Feb 20, 2026 |
| Russell Investments Group, Ltd. | Buy | +309,305 | — | 309,305 | $2.71M | Q4 2025 | Feb 17, 2026 |
| Northern Trust Corp | Buy | +90,709 | — | 90,709 | $794.61K | Q4 2025 | Feb 17, 2026 |
| Hanover Advisors Inc | Buy | +78,135 | — | 78,135 | $684.46K | Q4 2025 | Feb 17, 2026 |
| Pinnacle Financial Partners, Inc. | Buy | +30,565 | — | 30,565 | $267.75K | Q4 2025 | Feb 17, 2026 |
| Price T Rowe Associates Inc | Buy | +16,155 | — | 16,155 | $142.00K | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +10,703 | — | 10,703 | $93.76K | Q4 2025 | Feb 17, 2026 |
| Alliancebernstein L.P. | Buy | +10,440 | — | 10,440 | $91.45K | Q4 2025 | Feb 17, 2026 |
| Susquehanna International Group, Llp | Buy | +10,056 | — | 10,056 | $88.09K | Q4 2025 | Feb 17, 2026 |
| Fmr Llc | Buy | +8,469 | — | 8,469 | $74.19K | Q4 2025 | Feb 17, 2026 |
| Osaic Holdings, Inc. | Buy | +6,732 | — | 6,732 | $58.96K | Q4 2025 | Feb 17, 2026 |
| Mirae Asset Global Etfs Holdings Ltd. | Buy | +4,200 | — | 4,200 | $36.79K | Q4 2025 | Feb 17, 2026 |
| Royal Bank Of Canada | Buy | +3,172 | — | 3,172 | $28.00K | Q4 2025 | Feb 17, 2026 |
| Tower Research Capital Llc (Trc) | Buy | +1,141 | — | 1,141 | $9.99K | Q4 2025 | Feb 17, 2026 |
| California State Teachers Retirement System | Buy | +533 | — | 533 | $4.67K | Q4 2025 | Feb 17, 2026 |
| Optiver Holding B.V. | Buy | +126 | — | 126 | $1.10K | Q4 2025 | Feb 17, 2026 |
| De Lisle Partners Llp | Buy | +363,696 | — | 363,696 | $3.18M | Q4 2025 | Feb 13, 2026 |
| State Street Corp | Buy | +183,271 | — | 183,271 | $1.61M | Q4 2025 | Feb 13, 2026 |
| Morgan Stanley | Buy | +96,487 | — | 96,487 | $845.24K | Q4 2025 | Feb 13, 2026 |
| American Century Companies Inc | Buy | +75,914 | — | 75,914 | $665.01K | Q4 2025 | Feb 13, 2026 |
| Charles Schwab Investment Management Inc | Buy | +25,760 | — | 25,760 | $225.66K | Q4 2025 | Feb 13, 2026 |
| Barclays Plc | Buy | +13,819 | — | 13,819 | $121.06K | Q4 2025 | Feb 13, 2026 |
| Rhumbline Advisers | Buy | +10,756 | — | 10,756 | $94.22K | Q4 2025 | Feb 13, 2026 |
| Wells Fargo & Company/Mn | Buy | +9,787 | — | 9,787 | $85.73K | Q4 2025 | Feb 13, 2026 |
| Canada Life Assurance Co | Buy | +4,071 | — | 4,071 | $36.00K | Q4 2025 | Feb 13, 2026 |
| Police & Firemen'S Retirement System Of New Jersey | Buy | +3,065 | — | 3,065 | $26.85K | Q4 2025 | Feb 13, 2026 |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | Buy | +1,358 | — | 1,358 | $11.90K | Q4 2025 | Feb 13, 2026 |
| Citigroup Inc | Buy | +952 | — | 952 | $8.34K | Q4 2025 | Feb 13, 2026 |
| Sterling Capital Management Llc | Buy | +304 | — | 304 | $2.66K | Q4 2025 | Feb 13, 2026 |
| Dimensional Fund Advisors Lp | Buy | +746,412 | — | 746,412 | $6.54M | Q4 2025 | Feb 12, 2026 |
Frequently asked questions about MPX activity
Which institutional owners are buying MPX?
Institutional owners buying MPX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in MPX activity?
"Buy" means an investor increased their reported position in MPX compared to the prior reporting period. This reflects growing exposure to MARINE PRODUCTS CORP (MPX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in MPX increasing?
Institutional interest in MPX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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