Martin Midstream Partners L.P. - Limited Partnership
US ˙ NasdaqGS ˙ US5733311055

SecurityMMLP / Martin Midstream Partners L.P. - Limited Partnership
InstitutionMorgan Stanley
Latest Disclosed Ownership845,852 shares
Latest Disclosed Value $ 2,334,552
Morgan Stanley reports 7.98% increase in ownership of MMLP / Martin Midstream Partners L.P. - Limited Partnership

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 845,852 shares of Martin Midstream Partners L.P. - Limited Partnership (US:MMLP) valued at $2,334,552 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 783,372 shares of Martin Midstream Partners L.P. - Limited Partnership. This represents a change in shares of 7.98% during the quarter. The current value of the position is $2,140,006 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)
2026-05-15 2026-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 845,852 62,480 7.98 2,335 14.19 0.0001
2026-05-27 2025-12-31 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 783,372 -31,041 -3.81 2,045 -17.98 0.0001
2026-02-13 2025-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 783,372 -31,041 2,045 0.0001
2026-05-27 2025-09-30 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 814,413 61,788 8.21 2,492 12.25 0.0002
2025-11-14 2025-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 814,413 61,788 2,492 0.0002
2025-08-15 2025-06-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 752,625 84,000 12.56 2,220 -7.77 0.0001
2025-05-15 2025-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 668,625 -187,470 -21.90 2,407 -21.67 0.0002
2025-05-15 2024-12-31 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 856,095 -79,371 -8.48 3,073 -9.99 0.0002
2025-02-14 2024-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 856,095 -79,371 3,073 0.0002
2025-05-14 2024-09-30 13F/A-2 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 935,466 687,618 277.44 3,414 326.75 0.0002
2025-02-14 2024-09-30 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 935,466 687,618 3,414 0.0002
2024-11-14 2024-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 935,466 687,618 3,414 0.0000
2025-05-14 2024-06-30 13F/A-2 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 247,848 141,295 132.61 801 194.12 0.0001
2024-10-17 2024-06-30 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 247,848 141,295 801 0.0001
2024-08-14 2024-06-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 247,848 141,295 801 0.0001
2024-10-17 2024-03-31 13F/A-2 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 106,553 17,162 19.20 273 27.10 0.0000
2024-08-16 2024-03-31 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 106,553 17,162 273 0.0000
2024-05-15 2024-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 106,553 17,162 273 0.0000
2024-08-16 2023-12-31 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 89,391 37,080 70.88 215 47.59 0.0000
2024-02-13 2023-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 89,391 37,080 215 0.0000
2023-11-15 2023-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 52,311 38,652 282.98 145 400.00 0.0000
2023-08-14 2023-06-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 13,659 -266 -1.91 29 -23.68 0.0000
2023-05-15 2023-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 13,925 -42,003 -75.10 38 -77.25 0.0000
2023-02-14 2022-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 55,928 -190,444 -77.30 168 -80.05 0.0000
2022-11-14 2022-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 246,372 -72,914 -22.84 837 -34.15 0.0001
2022-10-27 2022-06-30 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 319,286 224,357 236.34 1,271 218.55 0.0002
2022-08-15 2022-06-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 319,286 224,357 1,271 0.0000
2022-10-27 2022-03-31 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 94,929 77,151 433.97 399 748.94 0.0001
2022-05-13 2022-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 94,929 77,151 399 0.0001
2022-02-14 2021-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 17,778 -19,654 -52.51 47 -60.50 0.0000
2021-11-15 2021-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 37,432 -69,995 -65.16 119 -63.27 0.0000
2021-08-23 2021-06-30 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 107,427 67,894 171.74 324 234.02 0.0000
2021-08-16 2021-06-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 107,427 67,894 324 0.0000
2021-05-17 2021-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 39,533 -283,170 -87.75 97 -78.96 0.0000
2021-02-16 2020-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 322,703 60,696 23.17 461 50.16 0.0001
2020-11-13 2020-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 262,007 163,431 165.79 307 162.39 0.0001
2020-08-14 2020-06-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 98,576 -181,421 -64.79 117 -62.01 0.0000
2020-05-26 2020-03-31 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 279,997 161,683 136.66 308 -35.29 0.0001
2020-05-15 2020-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 279,997 161,683 308 23.6608
2020-02-14 2019-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 118,314 78,214 195.05 476 162.98 0.0001
2019-11-14 2019-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 40,100 -422,342 -91.33 181 -94.52 0.0000
2019-08-14 2019-06-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 462,442 172,157 59.31 3,303 -8.61 0.0009
2019-05-15 2019-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 290,285 253,466 688.41 3,614 856.08 0.0010
2019-02-14 2018-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 36,819 -178,110 -82.87 378 -84.84 0.0001
2019-04-23 2018-09-30 13F/A-2 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 214,929 -72,081 -25.11 2,493 -37.05 0.0006
2018-11-20 2018-09-30 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 214,929 0 2,493 0.0006
2018-11-14 2018-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 214,929 -72,081 2,493
2019-04-23 2018-06-30 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 287,010 173,841 153.61 3,960 159.33 0.0011
2018-08-14 2018-06-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 287,010 173,841 3,960
2019-04-23 2018-03-31 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 113,169 22,965 25.46 1,527 21.00 0.0004
2018-05-14 2018-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 113,169 22,965 1,527
2019-04-23 2017-12-31 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 90,204 -24,070 -21.06 1,262 -29.02 0.0003
2018-02-14 2017-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 90,204 -24,070 1,262
2017-11-14 2017-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 114,274 8,199 7.73 1,778 -4.51 0.0005
2017-08-11 2017-06-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 106,075 -178,503 -62.73 1,862 -67.29 0.0006
2017-05-22 2017-03-31 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 284,578 78,702 38.23 5,692 50.66 0.0017
2017-05-12 2017-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 284,578 5,692
2017-02-22 2016-12-31 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 205,876 -43,050 -17.29 3,778 -24.26 0.0012
2017-02-13 2016-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 205,876 3,778
2016-11-10 2016-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 248,926 -102,844 -29.24 4,988 -38.62 0.0017
2016-08-12 2016-06-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 351,770 19,002 5.71 8,126 21.63 0.0029
2016-05-12 2016-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 332,768 142,717 75.09 6,681 61.96 0.0026
2016-02-09 2015-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 190,051 20,263 11.93 4,125 -0.43 0.0015
2016-02-08 2015-09-30 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 169,788 25,545 17.71 4,143 -7.23 0.0015
2015-11-09 2015-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 169,788 4,143
2015-08-12 2015-06-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 144,243 -117,236 -44.84 4,466 -51.81 0.0015
2015-05-14 2015-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 261,479 -97,649 -27.19 9,267 -4.00 0.0034
2015-02-13 2014-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 359,128 199,795 125.39 9,653 62.45 0.0035
2014-12-16 2014-09-30 13F/A-1 MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 159,333 66,302 71.27 5,942 48.36 0.0023
2014-11-14 2014-09-30 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 159,333 5,942
2014-05-13 2014-03-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 93,031 5,012 5.69 4,005 6.32 0.0017
2014-02-13 2013-12-31 13F MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 88,019 -31,380 -26.28 3,767 -32.80 0.0016
2013-11-13 2013-09-30 13F MARTIN MIDSTRM COM 573331105 119,399 23,057 23.93 5,606 32.00 0.0026
2013-08-08 2013-06-30 13F MARTIN MIDSTRM COM 573331105 96,342 96,342 4,247 0.0021
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.