SEC Form 4 · Updated Daily
USLM
— UNITED STATES LIME & MINERALS, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Candou Holdings Ltd. | 10%+ Owner | 17,673,780 | 2026-09-09 | P |
| BYRNE TIMOTHY W | Director · Officer | 114,741 | 2025-12-31 | A |
| DOUMET ANTOINE M | Director | 90,000 | 2026-09-09 | S |
| CARDIN RICHARD W | Director | 17,006 | 2026-05-01 | A |
| Hawkins Tom S Jr | Director | 11,356 | 2026-05-01 | A |
| O'Neill Nathan | Officer | 7,703 | 2026-02-03 | F |
| Wiedemer Michael L | Officer | 6,360 | 2026-02-03 | F |
| Gagnon John J | Officer | 5,941 | 2026-02-03 | F |
| Stone Timothy Wade | Officer | 4,840 | 2026-02-03 | F |
| Weirich Lila R | Director | 4,176 | 2026-05-01 | A |
| Wolkenstein Jon A | Director | 4,176 | 2026-05-01 | A |
| Duhe Sandra C | Director | 3,527 | 2026-05-01 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-09 | Candou Holdings Ltd. | Open-market buy | 20,000 | $110.00 | 17,673,780 |
| 2026-09-09 | DOUMET ANTOINE M | Open-market sale | 20,000 | $110.00 | 90,000 |
| 2026-05-01 | DOUMET ANTOINE M | Option exercise (derivative) | 3,405 | $110.00 | 3,405 |
| 2026-05-01 | CARDIN RICHARD W | Grant / award | 1,273 | $110.00 | 17,006 |
| 2026-05-01 | DOUMET ANTOINE M | Grant / award (derivative) | 3,405 | $110.00 | 3,405 |
| 2026-05-01 | Duhe Sandra C | Grant / award | 1,273 | $110.00 | 3,527 |
| 2026-05-01 | Weirich Lila R | Grant / award | 1,273 | $110.00 | 4,176 |
| 2026-05-01 | Wolkenstein Jon A | Grant / award | 1,273 | $110.00 | 4,176 |
| 2026-05-01 | Hawkins Tom S Jr | Grant / award | 1,273 | $110.00 | 11,356 |
| 2026-03-17 | DOUMET ANTOINE M | Option exercise (derivative) | 12,000 | $10.71 | 0 |
| 2026-03-17 | DOUMET ANTOINE M | Option exercise | 12,000 | $10.71 | 110,000 |
| 2026-03-03 | Duhe Sandra C | Open-market sale | 1,277 | $120.45 | 2,254 |
| 2026-02-03 | Gagnon John J | Tax withholding | 123 | $118.13 | 5,941 |
| 2026-02-03 | O'Neill Nathan | Tax withholding | 166 | $118.13 | 7,703 |
| 2026-02-03 | Stone Timothy Wade | Tax withholding | 136 | $118.13 | 4,840 |
| 2026-02-03 | Wiedemer Michael L | Tax withholding | 165 | $118.13 | 6,360 |
| 2026-02-02 | Gagnon John J | Grant / award | 210 | $123.61 | 6,151 |
| 2026-02-02 | Gagnon John J | Tax withholding | 75 | $123.61 | 6,064 |
| 2026-02-02 | O'Neill Nathan | Grant / award | 426 | $123.61 | 8,129 |
| 2026-02-02 | O'Neill Nathan | Tax withholding | 105 | $123.61 | 7,869 |
| 2026-02-02 | Stone Timothy Wade | Grant / award | 336 | $123.61 | 5,176 |
| 2026-02-02 | Stone Timothy Wade | Tax withholding | 100 | $123.61 | 4,976 |
| 2026-02-02 | Wiedemer Michael L | Grant / award | 426 | $123.61 | 6,786 |
| 2026-02-02 | Wiedemer Michael L | Tax withholding | 95 | $123.61 | 6,525 |
| 2025-12-31 | BYRNE TIMOTHY W | Grant / award | 47,500 | $119.74 | 114,741 |
| 2025-12-31 | BYRNE TIMOTHY W | Tax withholding | 18,691 | $119.74 | 67,241 |
| 2025-12-04 | Hawkins Tom S Jr | Gift | 100 | $0.00 | 180 |
| 2025-12-04 | Hawkins Tom S Jr | Gift | 100 | $0.00 | 10,083 |
| 2025-12-04 | Hawkins Tom S Jr | Gift | 80 | $0.00 | 10,183 |
| 2025-09-05 | BYRNE TIMOTHY W | Gift | 500 | $120.99 | 85,932 |
| 2025-09-04 | BYRNE TIMOTHY W | Open-market sale | 596 | $120.76 | 86,432 |
| 2025-09-04 | BYRNE TIMOTHY W | Open-market sale | 11,504 | $119.43 | 87,208 |
| 2025-09-03 | BYRNE TIMOTHY W | Open-market sale | 1,391 | $124.18 | 98,532 |
| 2025-09-03 | BYRNE TIMOTHY W | Open-market sale | 26,034 | $120.88 | 99,923 |
| 2025-05-02 | CARDIN RICHARD W | Grant / award | 1,403 | $99.81 | 15,733 |
| 2025-05-02 | Duhe Sandra C | Grant / award | 1,403 | $99.81 | 2,460 |
| 2025-05-02 | DOUMET ANTOINE M | Grant / award (derivative) | 3,809 | $99.81 | 3,809 |
| 2025-05-02 | Hawkins Tom S Jr | Grant / award | 1,403 | $99.81 | 10,263 |
| 2025-05-02 | Weirich Lila R | Grant / award | 1,403 | $99.81 | 2,903 |
| 2025-05-02 | Wolkenstein Jon A | Grant / award | 1,403 | $99.81 | 2,903 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.