| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Ronald F. Stoops | GRC | Common Stock | Tax liability | -10.5% | -912 | 7,752 | 03 Mar 2026 | Direct | ||
| Angela M. Morehead | GRC | Common Stock | Tax liability | -8.54% | -924 | 9,896 | 03 Mar 2026 | Direct | ||
| Barbara A. Woodman | GRC | Common Stock | Tax liability | -7.15% | -1,033 | 13,413 | 03 Mar 2026 | Direct | ||
| D. Patrick Wischmeier | GRC | Common Stock | Tax liability | -6.68% | -1,062 | 14,834 | 03 Mar 2026 | Direct | ||
| Brigette A. Burnell | GRC | Common Stock | Tax liability | -8.1% | -3,566 | 40,453 | 03 Mar 2026 | Direct | ||
| James Kerr | GRC | Common Stock | Tax liability | -8.12% | -4,275 | 48,349 | 03 Mar 2026 | Direct | ||
| Scott A. King | GRC | Common Stock | Tax liability | -10.7% | -9,211 | 76,660 | 03 Mar 2026 | Direct | ||
| Ronald F. Stoops | GRC | Common Stock | Award | 18.7% | 1,366 | 8,661 | 25 Feb 2026 | Direct | ||
| Angela M. Morehead | GRC | Common Stock | Award | 15.2% | 1,428 | 10,811 | 25 Feb 2026 | Direct | ||
| Barbara A. Woodman | GRC | Common Stock | Award | 11% | 1,428 | 14,437 | 25 Feb 2026 | Direct | ||
| D. Patrick Wischmeier | GRC | Common Stock | Award | 9.88% | 1,428 | 15,887 | 25 Feb 2026 | Direct | ||
| Brigette A. Burnell | GRC | Common Stock | Award | 11.6% | 4,567 | 44,010 | 25 Feb 2026 | Direct | ||
| James Kerr | GRC | Common Stock | Award | 15.4% | 7,041 | 52,615 | 25 Feb 2026 | Direct | ||
| Scott A. King | GRC | Common Stock | Award | 16.8% | 12,377 | 85,862 | 25 Feb 2026 | Direct | ||
| Donald H. Bullock | GRC | Common Stock | Award | 20.8% | 2,553 | 14,812 | 25 Apr 2025 | Direct | ||
| M. Ann Harlan | GRC | Common Stock | Award | 10.3% | 2,553 | 27,362 | 25 Apr 2025 | Direct | ||
| Pamela A. Heminger | GRC | Common Stock | Award | 255.3% | 2,553 | 3,553 | 25 Apr 2025 | Direct | ||
| Christopher H. Lake | GRC | Common Stock | Award | 6.37% | 2,553 | 42,601 | 25 Apr 2025 | Direct | ||
| Vincent K. Petrella | GRC | Common Stock | Award | 24.9% | 2,553 | 12,812 | 25 Apr 2025 | Direct | ||
| Kenneth R. Reynolds | GRC | Common Stock | Award | 8.1% | 2,553 | 34,062 | 25 Apr 2025 | Direct | ||
| Sonja K. McClelland | GRC | Common Stock | Award | 21.4% | 2,553 | 14,482 | 25 Apr 2025 | Direct | ||
| Ronald F. Stoops | GRC | Common Stock | Tax liability | -9.99% | -779 | 7,018 | 06 Mar 2025 | Direct | ||
| Angela M. Morehead | GRC | Common Stock | Tax liability | -8.86% | -746 | 7,678 | 06 Mar 2025 | Direct | ||
| Barbara A. Woodman | GRC | Common Stock | Tax liability | -7.69% | -837 | 10,042 | 06 Mar 2025 | Direct | ||
| D. Patrick Wischmeier | GRC | Common Stock | Tax liability | -6.81% | -845 | 11,570 | 06 Mar 2025 | Direct | ||
| Brigette A. Burnell | GRC | Common Stock | Tax liability | -7.87% | -3,018 | 35,354 | 06 Mar 2025 | Direct | ||
| James Kerr | GRC | Common Stock | Tax liability | -6.38% | -2,962 | 43,458 | 06 Mar 2025 | Direct | ||
| Scott A. King | GRC | Common Stock | Tax liability | -8.91% | -6,832 | 69,813 | 06 Mar 2025 | Direct | ||
| Scott A. King | GRC | Common Stock | Award | 44.1% | 23,470 | 76,645 | 26 Feb 2025 | Direct | ||
| James Kerr | GRC | Common Stock | Award | 37.6% | 12,674 | 46,420 | 26 Feb 2025 | Direct | ||
| Brigette A. Burnell | GRC | Common Stock | Award | 42.1% | 11,368 | 38,372 | 26 Feb 2025 | Direct | ||
| D. Patrick Wischmeier | GRC | Common Stock | Award | 39.7% | 3,528 | 12,415 | 26 Feb 2025 | Direct | ||
| Barbara A. Woodman | GRC | Common Stock | Award | 48% | 3,528 | 10,879 | 26 Feb 2025 | Direct | ||
| Angela M. Morehead | GRC | Common Stock | Award | 55.4% | 3,003 | 8,424 | 26 Feb 2025 | Direct | ||
| Ronald F. Stoops | GRC | Common Stock | Award | 62.6% | 3,003 | 7,797 | 26 Feb 2025 | Direct | ||
| Jeffrey S. Gorman | GRC | Common Stock | Gift | 0.89% | 6,650 | 756,981 | 19 Feb 2025 | By Family | ||
| Jeffrey S. Gorman | GRC | Common Stock | Gift | -2.8% | -3,325 | 115,601 | 19 Feb 2025 | By Michelle S. Gorman Trust | ||
| Jeffrey S. Gorman | GRC | Common Stock | Gift | -0.27% | -3,725 | 1,390,339 | 19 Feb 2025 | By Jeffrey S. Gorman Trust Custody | ||
| Jeffrey S. Gorman | GRC | Common Stock | Gift | -0.03% | -400 | 1,394,064 | 12 Nov 2024 | By Jeffrey S. Gorman Trust Custody | ||
| Jeffrey S. Gorman | GRC | Common Stock | Gift | 0.85% | 6,300 | 750,241 | 31 Oct 2024 | By Family | ||
| Jeffrey S. Gorman | GRC | Common Stock | Gift | -0.23% | -3,150 | 1,394,464 | 31 Oct 2024 | By Jeffrey S. Gorman Trust Custody | ||
| Jeffrey S. Gorman | GRC | Common Stock | Gift | -2.58% | -3,150 | 118,926 | 31 Oct 2024 | By Michelle S. Gorman Trust (BR) | ||
| Vincent K. Petrella | GRC | Common Stock | Award | 36.8% | 2,759 | 10,259 | 08 May 2024 | Direct | ||
| M. Ann Harlan | GRC | Common Stock | Award | 12.5% | 2,759 | 24,809 | 08 May 2024 | Direct | ||
| Kenneth R. Reynolds | GRC | Common Stock | Award | 9.6% | 2,759 | 31,509 | 08 May 2024 | Direct | ||
| Sonja K. McClelland | GRC | Common Stock | Award | 30.1% | 2,759 | 11,929 | 08 May 2024 | Direct | ||
| Christopher H. Lake | GRC | Common Stock | Award | 7.4% | 2,759 | 40,048 | 08 May 2024 | Direct | ||
| Donald H. Bullock | GRC | Common Stock | Award | 29% | 2,759 | 12,259 | 08 May 2024 | Direct | ||
| Angela M. Morehead | GRC | Common Stock | Tax liability | -1.17% | -64 | 5,421 | 24 Feb 2024 | Direct | ||
| Barbara A. Woodman | GRC | Common Stock | Tax liability | -1.05% | -78 | 7,351 | 24 Feb 2024 | Direct |