// company-profile
Marine Products Corp
MPXExchangeNYSESectorShip & Boat Building & RepairingInc.DEFilings77Insiders22
// api This Marine Products Corp insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Marine Products Corp insiders bought $0 (3 transactions) and sold $0 (3 transactions).
- Most active insider: Gary W. Rollins Voting Trust U/A dated September 14, 1994 with 5 transactions totaling $0.
Activity is mixed — buys and sales are roughly balanced.
Institutional Ownership
Top 13F-HR holders of Marine Products Corp as of 2026-03-31
Total reported AUM
$39.4M
QoQ change
-4.2%
Reporting period
2026-03-31
#1
DIMENSIONAL FUND ADVISORS LP
CIK 354204
$5.1M
701K shares
#2
GAMCO INVESTORS, INC. ET AL
CIK 807249
$3.7M
509K shares
#3
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$3.3M
450K shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 15, 2026 | Kolstad Gary A | MPX | J | 4,651 | $8.18 | $38K |
| May 15, 2026 | Wilson John F | MPX | J | 16,909 | $8.18 | $138K |
| May 15, 2026 | Nix Jerry | MPX | J | 15,909 | $8.18 | $130K |
| May 15, 2026 | Schmit Michael | MPX | J | 100,577 | $8.18 | $823K |
| May 15, 2026 | Bell Susan R. | MPX | J | 18,409 | $8.18 | $151K |
45 more transactions hidden
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