Marine Products Corporation
US ˙ NYSE ˙ US5684271084
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SecurityMPX / Marine Products Corporation
InstitutionStrs Ohio
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Strs Ohio closes position in MPX / Marine Products Corporation

On October 30, 2025 - Strs Ohio filed a 13F-HR form disclosing ownership of 0 shares of Marine Products Corporation (US:MPX) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 4, 2025 disclosing 2,900 shares of Marine Products Corporation. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2025-10-30 2025-09-30 13F MARINE PRODUCTS COM_STK 568427108 0 -100.00 0
2025-08-04 2025-06-30 13F MARINE PRODUCTS COM_STK 568427108 2,900 -6,300 -68.48 25 -68.83 0.0001
2025-05-28 2025-03-31 13F MARINE PRODUCTS COM_STK 568427108 9,200 -30,000 -76.53 77 -78.55 0.0003
2025-05-28 2024-12-31 13F MARINE PRODUCTS COM_STK 568427108 39,200 0 0.00 359 -5.28 0.0014
2024-11-01 2024-09-30 13F MARINE PRODUCTS COM_STK 568427108 39,200 0 0.00 380 -4.05 0.0015
2024-08-05 2024-06-30 13F MARINE PRODUCTS COM_STK 568427108 39,200 4,000 11.36 396 0.0016
2024-05-13 2024-03-31 13F MARINE PRODUCTS COM_STK 568427108 35,200 -2,200 -5.88 0 0.0016
2024-01-30 2023-12-31 13F MARINE PRODS COM 568427108 37,400 0 0.00 0 0.0018
2023-10-26 2023-09-30 13F/A-1 MARINE PRODS COM 568427108 37,400 6,100 19.49 1 0.0024
2023-10-26 2023-09-30 13F MARINE PRODS COM 568427108 37,400 6,100 1 0.0024
2023-07-31 2023-06-30 13F MARINE PRODS COM 568427108 31,300 31,300 1 0.0022
2021-10-22 2021-09-30 13F MARINE PRODS COM 568427108 0 -18,900 -100.00 0 -100.00
2021-07-26 2021-06-30 13F MARINE PRODS COM 568427108 18,900 0 0.00 291 -5.21 0.0010
2021-04-23 2021-03-31 13F MARINE PRODS COM 568427108 18,900 0 0.00 307 12.04 0.0012
2021-01-25 2020-12-31 13F MARINE PRODS COM 568427108 18,900 0 0.00 274 -7.12 0.0011
2020-12-14 2020-09-30 13F MARINE PRODS COM 568427108 18,900 18,900 295 0.0012
2019-10-21 2019-09-30 13F MARINE PRODS COM 568427108 0 -2,200 -100.00 0 -100.00
2019-07-25 2019-06-30 13F MARINE PRODS COM 568427108 2,200 0 0.00 33 13.79 0.0001
2019-04-19 2019-03-31 13F MARINE PRODS COM 568427108 2,200 -5,000 -69.44 29 -76.03 0.0001
2019-01-23 2018-12-31 13F MARINE PRODS COM 568427108 7,200 4,900 213.04 121 132.69 0.0006
2018-10-19 2018-09-30 13F MARINE PRODS COM 568427108 2,300 0 0.00 52 30.00 0.0002
2018-08-06 2018-06-30 13F MARINE PRODS COM 568427108 2,300 0 0.00 40 25.00 0.0002
2018-04-20 2018-03-31 13F MARINE PRODS COM 568427108 2,300 1,581 219.89 32 255.56 0.0001
2018-01-23 2017-12-31 13F MARINE PRODS COM 568427108 719 0 0.00 9 -18.18 0.0000
2017-10-23 2017-09-30 13F MARINE PRODS COM 568427108 719 0 0.00 11 0.00 0.0000
2017-07-26 2017-06-30 13F MARINE PRODS COM 568427108 719 0 0.00 11 57.14 0.0000
2017-04-26 2017-03-31 13F MARINE PRODS COM 568427108 719 0 0.00 7 -22.22 0.0000
2017-01-24 2016-12-31 13F MARINE PRODS COM 568427108 719 -581 -44.69 9 -18.18 0.0000
2016-10-27 2016-09-30 13F MARINE PRODS COM 568427108 1,300 0 0.00 11 10.00 0.0000
2016-07-26 2016-06-30 13F MARINE PRODS COM 568427108 1,300 0 0.00 10 11.11 0.0000
2016-04-25 2016-03-31 13F/A-1 MARINE PRODS COM 568427108 1,300 0 0.00 9 28.57 0.0000
2016-01-28 2015-12-31 13F MARINE PRODS COM 568427108 1,300 0 0.00 7 -22.22 0.0000
2015-10-21 2015-09-30 13F MARINE PRODS COM 568427108 1,300 0 0.00 9 12.50 0.0000
2015-08-04 2015-06-30 13F MARINE PRODS COM 568427108 1,300 0 0.00 8 -27.27 0.0000
2015-04-27 2015-03-31 13F/A-1 MARINE PRODS COM 568427108 1,300 0 0.00 11 0.00 0.0000
2015-04-21 2015-03-31 13F MARINE PRODS COM 568427108 1,300 11
2015-01-23 2014-12-31 13F MARINE PRODS COM 568427108 1,300 0 0.00 11 10.00 0.0000
2014-10-29 2014-09-30 13F/A-1 MARINE PRODS COM 568427108 1,300 0 0.00 10 -9.09 0.0000
2014-10-20 2014-09-30 13F MARINE PRODS COM 568427108 1,300 10
2014-07-24 2014-06-30 13F MARINE PRODS COM 568427108 1,300 0 0.00 11 10.00 0.0000
2014-04-28 2014-03-31 13F MARINE PRODS COM 568427108 1,300 0 0.00 10 -23.08 0.0000
2014-01-30 2013-12-31 13F MARINE PRODS COM 568427108 1,300 -200 -13.33 13 -7.14 0.0001
2013-10-24 2013-09-30 13F MARINE PRODS COM 568427108 1,500 0 0.00 14 16.67 0.0001
2013-08-12 2013-06-30 13F MARINE PRODS COM 568427108 1,500 1,500 12 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.