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.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Sunbelt Securities, Inc.Buy+4—4$35.00Q4 2025Feb 20, 2026
Russell Investments Group, Ltd.Buy+309,305—309,305$2.71MQ4 2025Feb 17, 2026
Northern Trust CorpBuy+90,709—90,709$794.61KQ4 2025Feb 17, 2026
Hanover Advisors IncBuy+78,135—78,135$684.46KQ4 2025Feb 17, 2026
Pinnacle Financial Partners, Inc.Buy+30,565—30,565$267.75KQ4 2025Feb 17, 2026
Price T Rowe Associates IncBuy+16,155—16,155$142.00KQ4 2025Feb 17, 2026
Bank Of America CorpBuy+10,703—10,703$93.76KQ4 2025Feb 17, 2026
Alliancebernstein L.P.Buy+10,440—10,440$91.45KQ4 2025Feb 17, 2026
Susquehanna International Group, LlpBuy+10,056—10,056$88.09KQ4 2025Feb 17, 2026
Fmr LlcBuy+8,469—8,469$74.19KQ4 2025Feb 17, 2026
Osaic Holdings, Inc.Buy+6,732—6,732$58.96KQ4 2025Feb 17, 2026
Mirae Asset Global Etfs Holdings Ltd.Buy+4,200—4,200$36.79KQ4 2025Feb 17, 2026
Royal Bank Of CanadaBuy+3,172—3,172$28.00KQ4 2025Feb 17, 2026
Tower Research Capital Llc (Trc)Buy+1,141—1,141$9.99KQ4 2025Feb 17, 2026
California State Teachers Retirement SystemBuy+533—533$4.67KQ4 2025Feb 17, 2026
Optiver Holding B.V.Buy+126—126$1.10KQ4 2025Feb 17, 2026
De Lisle Partners LlpBuy+363,696—363,696$3.18MQ4 2025Feb 13, 2026
State Street CorpBuy+183,271—183,271$1.61MQ4 2025Feb 13, 2026
Morgan StanleyBuy+96,487—96,487$845.24KQ4 2025Feb 13, 2026
American Century Companies IncBuy+75,914—75,914$665.01KQ4 2025Feb 13, 2026
Charles Schwab Investment Management IncBuy+25,760—25,760$225.66KQ4 2025Feb 13, 2026
Barclays PlcBuy+13,819—13,819$121.06KQ4 2025Feb 13, 2026
Rhumbline AdvisersBuy+10,756—10,756$94.22KQ4 2025Feb 13, 2026
Wells Fargo & Company/MnBuy+9,787—9,787$85.73KQ4 2025Feb 13, 2026
Canada Life Assurance CoBuy+4,071—4,071$36.00KQ4 2025Feb 13, 2026
Police & Firemen'S Retirement System Of New JerseyBuy+3,065—3,065$26.85KQ4 2025Feb 13, 2026
Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas LlcBuy+1,358—1,358$11.90KQ4 2025Feb 13, 2026
Citigroup IncBuy+952—952$8.34KQ4 2025Feb 13, 2026
Sterling Capital Management LlcBuy+304—304$2.66KQ4 2025Feb 13, 2026
Dimensional Fund Advisors LpBuy+746,412—746,412$6.54MQ4 2025Feb 12, 2026
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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.