Diamond Howard (CIK 1671358) reported 17 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-06). Recent activity: Sell ULCC (24,195 shares), Buy ULCC (18,335 shares), Sell ULCC (8,021 shares), Buy ULCC (11,328 shares), Sell ULCC (4,956 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-06 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Sell | 24,195 | $199,609 |
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Buy | 18,335 | $0 |
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Sell | 8,021 | $45,319 |
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Buy | 11,328 | $0 |
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Sell | 4,956 | $32,313 |
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Buy | 6,442 | $0 |
| 2026-02-10 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Sell | 2,818 | $18,373 |
| 2026-02-09 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Buy | 3,224 | $0 |
| 2026-02-09 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Sell | 1,410 | $7,966 |
| 2026-02-03 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Buy | 45,512 | $0 |
| 2026-02-03 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Sell | 19,911 | $92,387 |
| 2025-10-28 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Buy | 62,934 | $0 |
| 2025-10-28 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Sell | 27,533 | $114,262 |
| 2025-09-09 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Sell | 35,401 | $194,706 |
| 2025-09-04 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Sell | 26,306 | $149,155 |
| 2025-09-04 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Sell | 31,503 | $182,717 |
| 2025-03-10 | Frontier Group Holdings, Inc. (ULCC) | EVP, Legal & Corporate Affairs | Sell | 8,481 | $60,300 |
Source: SEC Form 4 filings · as of 2026-08-06