Dempsey James G. (CIK 1854054) reported 20 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-10). Recent activity: Buy ULCC (37,082 shares), Sell ULCC (11,690 shares), Buy ULCC (24,150 shares), Sell ULCC (6,943 shares), Buy ULCC (5,262 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | President & CEO | Buy | 37,082 | $0 |
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | President & CEO | Sell | 11,690 | $66,048 |
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | President & CEO | Buy | 24,150 | $0 |
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | President & CEO | Sell | 6,943 | $45,268 |
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | President & CEO | Buy | 5,262 | $0 |
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | President & CEO | Sell | 1,512 | $9,858 |
| 2026-02-09 | Frontier Group Holdings, Inc. (ULCC) | President & CEO | Buy | 6,521 | $0 |
| 2026-02-09 | Frontier Group Holdings, Inc. (ULCC) | President & CEO | Sell | 1,874 | $10,588 |
| 2025-10-28 | Frontier Group Holdings, Inc. (ULCC) | President | Buy | 156,250 | $0 |
| 2025-10-28 | Frontier Group Holdings, Inc. (ULCC) | President | Sell | 68,359 | $283,690 |
| 2025-10-17 | Frontier Group Holdings, Inc. (ULCC) | President | Buy | 65,104 | $0 |
| 2025-10-17 | Frontier Group Holdings, Inc. (ULCC) | President | Sell | 28,483 | $125,895 |
| 2025-02-20 | Frontier Group Holdings, Inc. (ULCC) | President | Sell | 318,314 | $2.9M |
| 2025-02-19 | Frontier Group Holdings, Inc. (ULCC) | President | Sell | 300,000 | $2.6M |
| 2025-02-11 | Frontier Group Holdings, Inc. (ULCC) | President | Buy | 24,150 | $0 |
| 2025-02-11 | Frontier Group Holdings, Inc. (ULCC) | President | Sell | 6,943 | $64,848 |
| 2025-02-11 | Frontier Group Holdings, Inc. (ULCC) | President | Buy | 5,262 | $0 |
| 2025-02-11 | Frontier Group Holdings, Inc. (ULCC) | President | Sell | 2,008 | $18,755 |
| 2025-02-05 | Frontier Group Holdings, Inc. (ULCC) | President | Buy | 21,215 | $0 |
| 2025-02-05 | Frontier Group Holdings, Inc. (ULCC) | President | Sell | 6,944 | $58,538 |
Source: SEC Form 4 filings · as of 2026-02-10