Marine ProductsMPX

13F holders, Q1 2025 (March 31)
65holders −3
3new positions
6sold out
2famous investors
$8.39avg. 13F price*

At the end of Q1 2025, 65 institutions reported holding Marine Products Corp. (MPX) in their 13F filings, down 3 from Q4 2024. 3 opened new positions and 6 sold out. The largest holders were Dimensional Fund Advisors LP ($5.9M), BlackRock, Inc. ($5.4M) and Vanguard Group Inc. ($4.7M). 2 famous investors held it, including Mario Gabelli (0.0% of GAMCO Investors's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
Marine Products Corp.
CUSIP
568427108
Latest filing quarter
Q2 2026

History

Number of 13F holders

020406080 Q1 2024: 69Q1 2024Q2 2024: 68Q2 2024Q3 2024: 66Q3 2024Q4 2024: 68Q4 2024Q1 2025: 65Q1 2025Q2 2025: 71Q2 2025Q3 2025: 70Q3 2025Q4 2025: 74Q4 2025Q1 2026: 75Q1 2026Q2 2026: 1Q2 2026

Total Exit/New Position Q4 2024 → Q1 2025

InstitutionsTotal Value
New Positions3$202K
Exits6$461K

All 13F filers, Q4 2024 → Q1 2025: 174,262 shares bought and 169,767 shares sold, net +4,495 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 65 holders

Dimensional Fund Advisors LP 0.00% Add +3.7% 709,168 $5.9M
BlackRock, Inc. 0.00% Reduce -1.3% 648,230 $5.4M
Vanguard Group Inc. 0.00% Add +3.0% 562,345 $4.7M
GAMCO Investors 0.05% Reduce -0.3% 512,183 $4.3M
De Lisle Partners LLP 0.44% Add +1.0% 313,761 $2.6M
Deprince Race & Zollo Inc. 0.05% Add +14.3% 303,265 $2.5M
Bank of New York Mellon Corp 0.00% Reduce -2.2% 246,745 $2.1M
Teton Advisors, Inc. 1.33% Reduce -0.8% 246,000 $2.1M
Geode Capital Management, LLC 0.00% Add +3.1% 245,623 $2.1M
Gabelli Funds LLC 0.01% Add +0.2% 231,000 $1.9M
Russell Investments Group, Ltd. 0.00% Add +21.4% 204,792 $1.7M
State Street Corp. 0.00% Add +2.4% 186,800 $1.6M
Northern Trust Corp. 0.00% Reduce -3.4% 94,998 $797K
American Century Companies Inc. 0.00% No change 84,623 $710K
Hanover Advisors Inc. 0.28% No change 78,135 $656K
Renaissance Technologies 0.00% Reduce -1.0% 69,902 $586K
Truist Financial Corp. 0.00% No change 54,000 $453K
Morgan Stanley 0.00% Add +1.7% 52,436 $440K
Synovus Financial Corp. 0.00% No change 30,565 $256K
Goldman Sachs Group Inc. 0.00% Reduce -28.8% 30,531 $256K
Nuveen, LLC 0.00% — 27,813 $233K
Charles Schwab Investment Management Inc. 0.00% Add +8.2% 25,788 $216K
Rhumbline Advisers 0.00% Add +66.6% 21,525 $181K
Los Angeles Capital Management LLC 0.00% Reduce -12.4% 20,125 $169K
T. Rowe Price Associates Inc. 0.00% No change 14,668 $124K
Wealth Enhancement Advisory Services, LLC 0.00% Add +2.3% 14,070 $118K
Burney Co./ 0.00% New 12,876 $108K
Susquehanna International Group, LLP 0.00% Reduce -32.0% 12,523 $105K
UBS Group AG 0.00% Add +37.0% 12,007 $101K
Triumph Capital Management 0.03% Reduce -27.3% 11,771 $99K
Summit Financial Strategies, Inc. 0.01% New 11,023 $92K
FMR LLC 0.00% Reduce -14.2% 10,357 $87K
Bank of America Corp. 0.00% Reduce -28.0% 10,275 $86K
STRS Ohio 0.00% Reduce -76.5% 9,200 $77K
Barclays PLC 0.00% Reduce -32.2% 9,166 $77K
Osaic Holdings, Inc. 0.00% Add +33.2% 8,997 $75K
Citigroup Inc. 0.00% Reduce -10.4% 6,243 $52K
Lazard Asset Management LLC 0.00% Reduce -62.6% 6,070 $50K
JPMorgan Chase & Co. 0.00% Reduce -59.6% 5,759 $48K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Add +4.7% 5,261 $44K
Wells Fargo & Company 0.00% Reduce -37.5% 4,836 $41K
Corebridge Financial, Inc. 0.00% Reduce -1.5% 4,300 $36K
New York State Common Retirement Fund 0.00% No change 4,171 $35K
Nisa Investment Advisors, LLC 0.00% Add +3.8% 2,698 $23K
CANADA LIFE ASSURANCE Co 0.00% Add +14.6% 2,008 $17K
Tower Research Capital LLC (TRC) 0.00% Add +75.1% 1,805 $15K
Royal Bank of Canada 0.00% Reduce -79.1% 824 $7K
Ameritas Investment Partners, Inc. 0.00% No change 813 $7K
Legal & General Group Plc 0.00% No change 739 $6K
BNP Paribas Financial Markets 0.00% Reduce -89.8% 725 $6K
California State Teachers Retirement System 0.00% No change 636 $5K
Cwm, LLC 0.00% Add +19.0% 582 $5K
Trust Co. of Vermont 0.00% No change 553 $5K
Princeton Global Asset Management LLC 0.00% No change 500 $4K
Harbor Capital Advisors, Inc. 0.00% Add +51.9% 433 $4K
Amalgamated Bank 0.00% No change 280 $2K
Coldstream Capital Management Inc. 0.00% New 223 $2K
Deutsche Bank AG 0.00% No change 213 $2K
Covestor Ltd 0.00% Add +18.8% 82 $1K
SBI Securities Co., Ltd. 0.00% Add +31.9% 91 $763
Sterling Capital Management LLC 0.00% Reduce -47.6% 86 $722
PNC Financial Services Group, Inc. 0.00% Reduce -78.5% 59 $495
True Wealth Design, LLC 0.00% Reduce -42.6% 31 $261
EverSource Wealth Advisors, LLC 0.00% Reduce -20.8% 19 $159
IFP Advisors, Inc 0.00% No change 3 $25

"% of holder's portfolio" is MPX's weight in each manager's 13F, not the share of Marine Products Corp. the manager owns.