Martin Midstream Partners L.P. (MMLP) Ownership
MMLP ownership summary
as of October 18, 2026- Institutions
- 41.7% of shares outstanding
- Insiders
- 34.95% of shares outstanding
- Shares outstanding
- 39.1M
- Float
- 26.4M shares available to trade
- Short interest
- 0.64% 72K shares short
- Days to cover
- 7.29 short interest up 3.8% vs prior month
- Institutions 41.74%
- Insiders 34.95%
- Other investors 23.31%
MMLP top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Amvescap Plc. | 18.44% | 7.2M | $14.8M | — | June 30, 2026 |
| 2 | Nomura Holdings Inc | 9.11% | 3.6M | $7.3M | — | June 30, 2026 |
| 3 | Barclays PLC | 3.83% | 1.5M | $3.1M | — | June 30, 2026 |
| 4 | KIM, LLC | 2.56% | 1.0M | $2.1M | — | June 30, 2026 |
| 5 | Blackstone Inc | 2.38% | 933K | $1.9M | −42,233 (−4.3%) | June 30, 2026 |
| 6 | Morgan Stanley - Brokerage Accounts | 2.33% | 911K | $1.9M | +65,273 (+7.7%) | June 30, 2026 |
| 7 | Bank of America Corp | 1.40% | 547K | $1.1M | — | June 30, 2026 |
| 8 | JPMorgan Chase & Co | 1.40% | 547K | $1.1M | −44,951 (−7.6%) | June 30, 2026 |
| 9 | HIGHLAND CAPITAL MANAGEMENT FUND ADVISORS | 1.04% | 408K | $836,892 | — | June 30, 2026 |
| 10 | Annis Gardner Whiting Capital Advisors LLC | 0.21% | 82K | $167,678 | +38,000 (+86.8%) | June 30, 2026 |
| 11 | Confluence Wealth Services, Inc. | 0.09% | 36K | $74,425 | +3,779 (+11.6%) | June 30, 2026 |
| 12 | Easterly Investment Partners. | 0.09% | 35K | $71,750 | −20,000 (−36.4%) | June 30, 2026 |
| 13 | UBS Group AG | 0.07% | 28K | $58,306 | −539 (−1.9%) | June 30, 2026 |
| 14 | Moneta Group Investment Advisors Inc | 0.07% | 28K | $57,537 | +51 (+0.2%) | June 30, 2026 |
| 15 | Geode Capital Management, LLC | 0.07% | 27K | $54,979 | +333 (+1.3%) | June 30, 2026 |
| 16 | Jane Street Group LLC | 0.05% | 19K | $39,524 | +19,280 (0.0%) | June 30, 2026 |
| 17 | LPL Financial Corp | 0.04% | 17K | $34,288 | +5,188 (+45.0%) | June 30, 2026 |
| 18 | AGP FRANKLIN, LLC | 0.04% | 15K | $30,121 | — | June 30, 2026 |
| 19 | Pettinga Financial Advisors, LLC | 0.03% | 13K | $25,676 | — | June 30, 2026 |
| 20 | Ipsen Advisor Group LLC | 0.03% | 12K | $24,032 | +21 (+0.2%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 8 holders added 132K shares and 4 cut 108K.
MMLP top mutual fund and ETF holders
7 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Invesco SteelPath MLP Income Y | 17.96% | 7.0M | $14.4M | — | June 30, 2026 |
| 2 | NexPoint Event Driven Z | 1.04% | 408K | $836,892 | — | June 30, 2026 |
| 3 | VT De Lisle America B USD | 0.86% | 335K | $687,640 | — | September 30, 2026 |
| 4 | Invesco SteelPath MLP Select 40 Y | 0.48% | 186K | $381,938 | — | June 30, 2026 |
| 5 | Fidelity Nasdaq Composite Index | 0.07% | 27K | $54,979 | — | August 31, 2026 |
| 6 | Alerian MLP ETF | <0.01% | 100 | $205 | — | September 30, 2026 |
| 7 | Global X MLP ETF | <0.01% | 100 | $205 | — | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
MMLP insider transactions
latest 20| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-02-18 | Robert D Bondurant | Buy | $3.53 | 114 | $402 |
| 2025-02-18 | Ruben S Martin | Buy | $3.53 | 22 | $78 |
| 2025-02-18 | Scot A Shoup | Buy | $3.53 | 39 | $138 |
| 2025-02-18 | Sharon L Taylor | Buy | $3.53 | 21 | $74 |
| 2025-02-18 | Randall Tauscher | Buy | $3.53 | 19 | $67 |
| 2024-11-18 | Chris H Booth | Buy | $3.99 | — | — |
| 2024-11-18 | Randall Tauscher | Buy | $3.99 | 17 | $68 |
| 2024-11-18 | Robert D Bondurant | Buy | $3.99 | 101 | $403 |
| 2024-11-18 | Ruben S Martin | Buy | $3.99 | 20 | $80 |
| 2024-11-18 | Sharon L Taylor | Buy | $3.99 | 19 | $76 |
| 2024-05-17 | Randall Tauscher | Buy | $3.00 | 23 | $69 |
| 2024-05-17 | Sharon L Taylor | Buy | $3.00 | 25 | $75 |
| 2024-05-17 | Scot A Shoup | Buy | $3.00 | 46 | $138 |
| 2024-05-17 | Ruben S Martin | Buy | $3.00 | 26 | $78 |
| 2024-05-17 | Robert D Bondurant | Buy | $3.00 | 134 | $402 |
| 2024-05-07 | Robert D Bondurant | Buy | $2.89 | 980 | $2,832 |
| 2024-05-07 | Ruben S Martin | Buy | $2.89 | 502 | $1,451 |
| 2024-05-07 | Scot A Shoup | Buy | $2.89 | 108 | $312 |
| 2024-05-07 | Sharon L Taylor | Buy | $2.89 | 243 | $702 |
| 2024-04-09 | Robert D Bondurant | Buy | $2.65 | 1,603 | $4,248 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
MMLP shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns MMLP
Institutional investors own 41.7% of Martin Midstream Partners's shares and insiders 34.95%. The largest holder is Amvescap Plc. with 18.44% of the shares (7.2M), as of June 30, 2026. Among the top 20 institutions, 8 added shares and 4 reduced their stake in the latest filings. Short interest is 0.64% of the float, or 7.29 days of average trading volume. The share count rose 10.5% since 2014.
Related: MMLP analyst forecast, MMLP key metrics, MMLP dividend history. See the MMLP stock overview for the latest quote and news.
MMLP ownership FAQ
Who owns the most Martin Midstream Partners stock?
The largest shareholders of Martin Midstream Partners are Amvescap Plc. (18.44%), Nomura Holdings Inc (9.11%), Barclays PLC (3.83%), KIM, LLC (2.56%), Blackstone Inc (2.38%).
What percentage of Martin Midstream Partners is owned by institutions?
Institutions hold 41.7% of Martin Midstream Partners's shares outstanding; insiders hold 34.95%.
Which funds own Martin Midstream Partners?
The largest fund holders of Martin Midstream Partners are Invesco SteelPath MLP Income Y (17.96%), NexPoint Event Driven Z (1.04%), VT De Lisle America B USD (0.86%), Invesco SteelPath MLP Select 40 Y (0.48%), Fidelity Nasdaq Composite Index (0.07%).
What is Martin Midstream Partners's short interest?
72K shares of Martin Midstream Partners were sold short, 0.64% of the float; at the average daily volume it would take 7.29 days to cover.
Are insiders buying or selling Martin Midstream Partners?
Of the latest 20 reported insider transactions in Martin Midstream Partners (since April 9, 2024), 20 were purchases and 0 were sales.
How many shares of Martin Midstream Partners are outstanding?
Martin Midstream Partners has 39.1M shares outstanding, of which 26.4M are in the public float.