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| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| GHC | O'Shaughnessy Timothy J | President and CEO | Nov 11 '25 | Option Exercise | 872.01 | 15,164 | 13,223,160 | 34,323 | Nov 13 12:00 AM |
| GHC | O'Shaughnessy Timothy J | President and CEO | Sep 29 '25 | Option Exercise | 872.01 | 15,160 | 13,219,672 | 32,007 | Sep 30 12:00 AM |
| GHC | O'Shaughnessy Timothy J | President and CEO | Aug 20 '25 | Option Exercise | 872.01 | 15,160 | 13,219,672 | 31,305 | Aug 22 12:00 AM |
| GHC | O'Shaughnessy Timothy J | President and CEO | Nov 01 '24 | Option Exercise | 719.15 | 51,508 | 37,041,978 | 47,578 | Nov 05 12:00 AM |
| GHC | O'Shaughnessy Timothy J | President and CEO | Oct 15 '24 | Option Exercise | 719.15 | 51,504 | 37,039,102 | 45,950 | Oct 17 12:00 AM |
| GHC | O'Shaughnessy Timothy J | President and CEO | Sep 23 '24 | Option Exercise | 719.15 | 51,504 | 37,039,102 | 51,506 | Sep 25 12:00 AM |
| GHC | O'Shaughnessy Timothy J | President and CEO | Jul 06 '23 | Option Exercise | 426.86 | 4,120 | 1,758,664 | 71,045 | Jul 07 12:00 AM |
| GHC | O'Shaughnessy Timothy J | President and CEO | Mar 07 '23 | Option Exercise | 426.86 | 2,000 | 853,720 | 73,105 | Mar 08 12:00 AM |
| GHC | O'Shaughnessy Timothy J | director: President and CEO | Mar 07 '22 | Option Exercise | 426.86 | 6,306 | 2,691,780 | 74,105 | Mar 08 12:00 AM |
| GHC | O'Shaughnessy Timothy J | President and CEO | Aug 02 '18 | Buy | 549.19 | 3,770 | 2,070,430 | 11,742 | Aug 07 12:00 AM |
| GHC | O'Shaughnessy Timothy J | President and CEO | Aug 03 '18 | Buy | 558.63 | 880 | 491,596 | 10,692 | Aug 06 12:00 AM |
| GHC | O'Shaughnessy Timothy J | President and CEO | Jul 24 '17 | Buy | 0.00 | 10,188 | 0 | 20,055 | Aug 21 12:00 AM |
| GHC | O'Shaughnessy Timothy J | President and CEO | Mar 23 '16 | Buy | 463.61 | 1,100 | 509,971 | 8,892 | Mar 24 12:00 AM |