11 insiders reported 44 Form 4 transactions for UNITED STATES LIME & MINERALS INC (USLM) over the past 18 months (most recent 2026-03-18). Recent activity: DOUMET ANTOINE M (Director) Buy 12,000 shares, Duhe Sandra C (Director) Sell 1,277 shares, O'Neill Nathan (Vice President) Sell 105 shares, O'Neill Nathan (Vice President) Sell 166 shares, O'Neill Nathan (Vice President) Buy 426 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-18 | DOUMET ANTOINE M | Director | Buy | 12,000 | $128,520 |
| 2026-03-04 | Duhe Sandra C | Director | Sell | 1,277 | $153,815 |
| 2026-02-04 | O'Neill Nathan | Vice President | Sell | 105 | $12,979 |
| 2026-02-04 | O'Neill Nathan | Vice President | Sell | 166 | $19,610 |
| 2026-02-04 | O'Neill Nathan | Vice President | Buy | 426 | $52,658 |
| 2026-02-04 | Stone Timothy Wade | Vice President | Sell | 100 | $12,361 |
| 2026-02-04 | Stone Timothy Wade | Vice President | Sell | 136 | $16,066 |
| 2026-02-04 | Stone Timothy Wade | Vice President | Buy | 336 | $41,533 |
| 2026-02-04 | Gagnon John J | Vice President | Sell | 75 | $9,271 |
| 2026-02-04 | Gagnon John J | Vice President | Sell | 123 | $14,530 |
| 2026-02-04 | Gagnon John J | Vice President | Buy | 210 | $25,958 |
| 2026-02-04 | Wiedemer Michael L | Vice President | Sell | 95 | $11,743 |
| 2026-02-04 | Wiedemer Michael L | Vice President | Buy | 426 | $52,658 |
| 2026-02-04 | Wiedemer Michael L | Vice President | Sell | 165 | $19,491 |
| 2026-01-02 | BYRNE TIMOTHY W | President & CEO | Sell | 18,691 | $2.2M |
| 2026-01-02 | BYRNE TIMOTHY W | President & CEO | Buy | 47,500 | $5.7M |
| 2025-12-05 | Hawkins Tom S Jr | Director | Sell | 80 | $0 |
| 2025-12-05 | Hawkins Tom S Jr | Director | Sell | 100 | $0 |
| 2025-12-05 | Hawkins Tom S Jr | Director | Buy | 100 | $0 |
| 2025-09-05 | BYRNE TIMOTHY W | President & CEO | Sell | 26,034 | $3.1M |
| 2025-09-05 | BYRNE TIMOTHY W | President & CEO | Sell | 1,391 | $172,734 |
| 2025-09-05 | BYRNE TIMOTHY W | President & CEO | Sell | 11,504 | $1.4M |
| 2025-09-05 | BYRNE TIMOTHY W | President & CEO | Sell | 596 | $71,973 |
| 2025-09-05 | BYRNE TIMOTHY W | President & CEO | Sell | 500 | $60,495 |
| 2025-05-05 | Wolkenstein Jon A | Director | Buy | 1,403 | $140,033 |
Source: SEC Form 4 filings · as of 2026-03-18