Diamond Howard, EVP of Legal and Corporate Affairs at Frontier Group Holdings ($ULCC), sold shares on the open market three times in the last year, totaling about $527 thousand. The most recent sale occurred on September 5, 2025. These sales rank 6,314th among 11,678 insiders in our database, where the average is $8.6 million across about 6.4 transactions. Howard made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 8, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 11328 | $0.00 | 0.0000 | 228,950,914 | 100.00% | 0.00% |
| Feb. 8, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 2818 | $6.52 | 157,321.0000 | 228,950,914 | 1.76% | 0.00% |
| Feb. 8, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 6442 | $0.00 | 0.0000 | 228,950,914 | 100.00% | 0.00% |
| Feb. 6, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 18335 | $0.00 | 36,671.0000 | 228,950,914 | 33.33% | 0.01% |
| Feb. 6, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 18335 | $0.00 | 155,346.0000 | 228,950,914 | 13.38% | 0.01% |
| Feb. 6, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 8021 | $5.65 | 147,325.0000 | 228,950,914 | 5.16% | 0.00% |
| Feb. 8, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 11328 | $0.00 | 158,653.0000 | 228,950,914 | 7.69% | 0.00% |
| Feb. 8, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 4956 | $6.52 | 153,697.0000 | 228,950,914 | 3.12% | 0.00% |
| Feb. 8, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 6442 | $0.00 | 160,139.0000 | 228,950,914 | 4.19% | 0.00% |
| Feb. 5, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | A | Common Stock | 3224 | $0.00 | 138,421.0000 | 228,950,914 | 2.38% | 0.00% |
| Feb. 6, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 1410 | $5.65 | 137,011.0000 | 228,950,914 | 1.02% | 0.00% |
| Feb. 5, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | A | Restricted Stock Units | 88496 | $0.00 | 88,496.0000 | 228,950,914 | 9999.99% | 0.04% |
| Feb. 1, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 45512 | $0.00 | 155,108.0000 | 228,950,914 | 41.53% | 0.02% |
| Feb. 1, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 45512 | $0.00 | 45,512.0000 | 228,950,914 | 50.00% | 0.02% |
| Feb. 1, 2026 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 19911 | $4.64 | 135,197.0000 | 228,950,914 | 12.84% | 0.01% |
| Oct. 25, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 27533 | $4.15 | 109,596.0000 | 227,248,474 | 20.08% | 0.01% |
| Oct. 25, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 62934 | $0.00 | 137,129.0000 | 227,248,474 | 84.82% | 0.03% |
| Oct. 25, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 62934 | $0.00 | 62,934.0000 | 227,248,474 | 50.00% | 0.03% |
| Sept. 5, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | S | Common Stock | 35401 | $5.50 | 74,195.0000 | 227,248,474 | 32.30% | 0.02% |
| Sept. 2, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | S | Common Stock | 26306 | $5.67 | 141,099.0000 | 227,248,474 | 15.71% | 0.01% |
| Sept. 3, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | S | Common Stock | 31503 | $5.80 | 109,596.0000 | 227,248,474 | 22.33% | 0.01% |
| March 6, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | S | Common Stock | 8481 | $7.11 | 167,405.0000 | 227,248,474 | 4.82% | 0.00% |
| Feb. 20, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | S | Common Stock | 87830 | $8.77 | 175,886.0000 | 227,248,474 | 33.30% | 0.04% |
| Feb. 18, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | S | Common Stock | 326581 | $8.90 | 307,592.0000 | 227,248,474 | 51.50% | 0.14% |
| Feb. 19, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | S | Common Stock | 43876 | $9.20 | 263,716.0000 | 227,248,474 | 14.26% | 0.02% |
| Feb. 8, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 11331 | $0.00 | 637,430.0000 | 0 | 1.81% | 0.00% |
| Feb. 8, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 11328 | $0.00 | 630,104.0000 | 0 | 1.83% | 0.00% |
| Feb. 8, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 4005 | $9.34 | 626,099.0000 | 0 | 0.64% | 0.00% |
| Feb. 8, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 3257 | $9.34 | 634,173.0000 | 0 | 0.51% | 0.00% |
| Feb. 8, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 11328 | $0.00 | 11,328.0000 | 0 | 50.00% | 0.00% |
| Feb. 8, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 11331 | $0.00 | 6,442.0000 | 0 | 63.75% | 0.00% |
| Feb. 6, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | A | Restricted Stock Units | 55006 | $0.00 | 55,006.0000 | 0 | 9999.99% | 0.00% |
| Feb. 1, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 45511 | $0.00 | 623,986.0000 | 0 | 7.87% | 0.00% |
| Feb. 1, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 14008 | $8.43 | 609,978.0000 | 0 | 2.24% | 0.00% |
| Feb. 3, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 12348 | $0.00 | 622,326.0000 | 0 | 2.02% | 0.00% |
| Feb. 3, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 3550 | $8.43 | 618,776.0000 | 0 | 0.57% | 0.00% |
| Feb. 1, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 45511 | $0.00 | 91,024.0000 | 0 | 33.33% | 0.00% |
| Feb. 3, 2025 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 12348 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Oct. 25, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 27533 | $6.98 | 578,475.0000 | 0 | 4.54% | 0.00% |
| Oct. 25, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 62934 | $0.00 | 125,868.0000 | 0 | 33.33% | 0.00% |
| Oct. 25, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 62934 | $0.00 | 606,008.0000 | 0 | 11.59% | 0.00% |
| Feb. 23, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 3368 | $7.26 | 543,074.0000 | 0 | 0.62% | 0.00% |
| Feb. 23, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 11717 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Feb. 23, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 11717 | $0.00 | 546,442.0000 | 0 | 2.19% | 0.00% |
| Feb. 8, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 14060 | $0.00 | 17,773.0000 | 0 | 44.17% | 0.00% |
| Feb. 8, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 11328 | $0.00 | 527,963.0000 | 0 | 2.19% | 0.00% |
| Feb. 8, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 3256 | $6.89 | 524,707.0000 | 0 | 0.62% | 0.00% |
| Feb. 8, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 14060 | $0.00 | 538,767.0000 | 0 | 2.68% | 0.00% |
| Feb. 8, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 4042 | $6.89 | 534,725.0000 | 0 | 0.75% | 0.00% |
| Feb. 8, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 11328 | $0.00 | 22,656.0000 | 0 | 33.33% | 0.00% |
| Feb. 3, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Restricted Stock Units | 12348 | $0.00 | 12,348.0000 | 0 | 50.00% | 0.00% |
| Feb. 3, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | M | Common Stock | 12348 | $0.00 | 520,895.0000 | 0 | 2.43% | 0.00% |
| Feb. 3, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | F | Common Stock | 4260 | $5.40 | 516,635.0000 | 0 | 0.82% | 0.00% |
| Feb. 1, 2024 | Frontier Group Holdings, Inc. | $ULCC | Diamond Howard | EVP, Legal & Corporate Affairs | A | Restricted Stock Units | 136535 | $0.00 | 136,535.0000 | 0 | 9999.99% | 0.00% |