As of September 29, 2026, the three largest insider holders of MMLP are Ruben S Martin (Director, 3.73Mn shares), Product Sales Llc Martin (TenPercentOwner, 2.78Mn shares), C Scott Massey (Director, 191.68K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Product Sales Llc Martin | TenPercentOwner | 2,781,179 | 0 | 2,781,179 | 72.7% | 12 Dec, 2025 |
| 2 | C Scott Massey | Director | 191,678 | 0 | 191,678 | 5.0% | 19 Feb, 2026 |
| 3 | Byron R Kelley | Director | 175,266 | 0 | 175,266 | 4.6% | 19 Feb, 2026 |
| 4 | James M Collingsworth | Director | 172,666 | 0 | 172,666 | 4.5% | 19 Feb, 2026 |
| 5 | Ruben S Martin | President And Ceo | 159,392 | 0 | 159,392 | 4.2% | 20 Feb, 2025 |
| 6 | Robert D Bondurant | President And Ceo | 149,511 | 0 | 149,511 | 3.9% | 20 Feb, 2025 |
| 7 | Randall Tauscher | Executive Vice President/Coo | 118,258 | 0 | 118,258 | 3.1% | 21 May, 2025 |
| 8 | Scot A Shoup | Senior Vp Operations | 28,113 | 0 | 28,113 | 0.7% | 20 Feb, 2025 |
| 9 | Chris H Booth | Vp/General Counsel/Secretary | 25,850 | 0 | 25,850 | 0.7% | 20 Feb, 2025 |
| 10 | Sharon L Taylor | Executive Vice President / Cfo | 23,363 | 0 | 23,363 | 0.6% | 20 Feb, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 17 Feb, 2026 | Byron R Kelley | Director | Acquired A | 23,200 | $2.80 | $65.00K | 175,266 | Direct |
| 17 Feb, 2026 | James M Collingsworth | Director | Acquired A | 23,200 | $2.80 | $65.00K | 172,666 | Direct |
| 17 Feb, 2026 | C Scott Massey | Director | Acquired A | 23,200 | $2.80 | $65.00K | 191,678 | Direct |
| 11 Dec, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 5,573 | $2.55 | $14.23K | 2,774,167 | Direct |
| 12 Dec, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 7,012 | $2.59 | $18.19K | 2,781,179 | Direct |
| 04 Dec, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 2,190 | $2.60 | $5.69K | 2,756,366 | Direct |
| 08 Dec, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 12,228 | $2.59 | $31.66K | 2,768,594 | Direct |
| 01 Dec, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 2,239 | $2.59 | $5.80K | 2,754,176 | Direct |
| 25 Nov, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 15,040 | $2.59 | $38.99K | 2,751,937 | Direct |
| 17 Nov, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 1,945 | $2.60 | $5.05K | 2,736,897 | Direct |
| 06 Nov, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 3,605 | $2.59 | $9.34K | 2,710,443 | Direct |
| 07 Nov, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 12,237 | $2.59 | $31.70K | 2,722,680 | Direct |
| 10 Nov, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 12,272 | $2.58 | $31.61K | 2,734,952 | Direct |
| 17 Oct, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 106,100 | $2.65 | $280.80K | 2,674,838 | Direct |
| 20 Oct, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 20,500 | $2.55 | $52.31K | 2,695,338 | Direct |
| 21 Oct, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 11,500 | $2.57 | $29.61K | 2,706,838 | Direct |
| 07 Aug, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 1,544 | $3.04 | $4.69K | 2,568,738 | Direct |
| 04 Aug, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 7,107 | $2.95 | $20.96K | 2,567,194 | Direct |
| 11 Jun, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 60,686 | $3.12 | $189.24K | 2,560,087 | Direct |
| 10 Jun, 2025 | Product Sales Llc Martin | TenPercentOwner | Acquired P | 605,633 | $3.05 | $1.85Mn | 2,499,401 | Direct |