Skip to main content
MPX logo

MPX

Marine Products Group, LLC
$8.18 -0.03 (-0.37%) At close · May 14
Market Cap
$280.04M
Shares
34,234,398

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 74
Total Value: $40,383,031
Total Shares: 5,554,757

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 74 13F filers · Δ vs Dec 31, 2025
Top Holder
13.8%
Jun 2023 → Mar 2026 · range 12.6% – 14.6%
−0.1 pts
Top 5
50.4%
Jun 2023 → Mar 2026 · range 50.4% – 57.1%
−3.4 pts
Top 10
76.8%
Jun 2023 → Mar 2026 · range 73.8% – 79.6%
−2.8 pts
HHI
716
Jun 2023 → Mar 2026 · range 694 – 774
Broadly held−57

Quarterly Activity

vs Dec 31, 2025
New
13
Increased
19
Decreased
29
Sold Out
13
Unchanged
13
Holder count: 0
Institutional value: -13.8%
Shares held: +3.9%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Showing 74 of 74
Export CSV
Holder Value (USD) % of 13F Shares Open
Key facts CIK 1129155 CUSIP 568427108 13F (30d) 1 filings 1 filers Visit website Investor relations