United States Lime & Minerals's top three insider shareholders as of July 26, 2026 are Enterprises Ltd Inberdon (TenPercentOwner, 3.53Mn shares), Timothy W Byrne (President Ceo, 114.74K shares), Antoine M Doumet (Director, 110.00K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Enterprises Ltd Inberdon | - | 3,530,756 | 0 | 14 Dec, 2021 |
| Ray M Harlin | - | 4,000 | 0 | 03 May, 2022 |
| Richard W Cardin | - | 15,733 | 0 | 05 May, 2025 |
| Timothy W Byrne | President Ceo | 114,741 | 0 | 02 Jan, 2026 |
| Antoine M Doumet | - | 110,000 | 0 | 18 Mar, 2026 |
| Edward A Odishaw | - | 800 | 0 | 03 May, 2022 |
| Bill Hughes | Senior Vice President | 26,188 | 0 | 08 May, 2023 |
| Russell W Riggs | Vice President | 9,128 | 0 | 06 Feb, 2023 |
| Michael L Wiedemer | Vice President | 6,786 | 0 | 04 Feb, 2026 |
| Timothy Wade Stone | Vice President | 5,176 | 0 | 04 Feb, 2026 |
| John J Gagnon | Vice President | 6,151 | 0 | 04 Feb, 2026 |
| Sandra C Duhe | - | 2,254 | 0 | 04 Mar, 2026 |
| Tom S Jr Hawkins | - | 10,083 | 180 | 05 Dec, 2025 |
| Nathan O'Neill | Vice President | 8,129 | 0 | 04 Feb, 2026 |
| Lila R Weirich | - | 2,903 | 0 | 05 May, 2025 |
| Jon A Wolkenstein | - | 2,903 | 0 | 05 May, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 17 Mar, 2026 | Antoine M Doumet | USLM Common Stock | A | 12,000 | $10.71 | 110,000 | D | M |
| 17 Mar, 2026 | Antoine M Doumet | Stock Option (right to buy) | D | 12,000 | $10.71 | 0 | D | M |
| 03 Mar, 2026 | Sandra C Duhe | USLM Common Stock | D | 1,277 | $120.45 | 2,254 | D | S |
| 02 Feb, 2026 | Michael L Wiedemer | USLM Common Stock | D | 95 | $123.61 | 6,525 | D | F |
| 02 Feb, 2026 | John J Gagnon | USLM Common Stock | D | 75 | $123.61 | 6,064 | D | F |
| 02 Feb, 2026 | Timothy Wade Stone | USLM Common Stock | D | 100 | $123.61 | 4,976 | D | F |
| 02 Feb, 2026 | Michael L Wiedemer | USLM Common Stock | D | 95 | $123.61 | 6,525 | D | F |
| 02 Feb, 2026 | Michael L Wiedemer | USLM Common Stock | D | 95 | $123.61 | 6,525 | D | F |
| 02 Feb, 2026 | Nathan O'Neill | USLM Common Stock | D | 105 | $123.61 | 7,869 | D | F |
| 03 Feb, 2026 | Nathan O'Neill | USLM Common Stock | D | 166 | $118.13 | 7,703 | D | F |
| 03 Feb, 2026 | Michael L Wiedemer | USLM Common Stock | D | 165 | $118.13 | 6,360 | D | F |
| 03 Feb, 2026 | John J Gagnon | USLM Common Stock | D | 123 | $118.13 | 5,941 | D | F |
| 03 Feb, 2026 | Timothy Wade Stone | USLM Common Stock | D | 136 | $118.13 | 4,840 | D | F |
| 03 Feb, 2026 | Michael L Wiedemer | USLM Common Stock | D | 165 | $118.13 | 6,360 | D | F |
| 03 Feb, 2026 | Michael L Wiedemer | USLM Common Stock | D | 165 | $118.13 | 6,360 | D | F |
| 02 Feb, 2026 | John J Gagnon | USLM Common Stock | A | 210 | $123.61 | 6,151 | D | A |
| 02 Feb, 2026 | Timothy Wade Stone | USLM Common Stock | A | 336 | $123.61 | 5,176 | D | A |
| 02 Feb, 2026 | Michael L Wiedemer | USLM Common Stock | A | 426 | $123.61 | 6,786 | D | A |
| 02 Feb, 2026 | Michael L Wiedemer | USLM Common Stock | A | 426 | $123.61 | 6,786 | D | A |
| 02 Feb, 2026 | Michael L Wiedemer | USLM Common Stock | A | 426 | $123.61 | 6,786 | D | A |