GHC Insider Transactions
350 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.
GHC insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| Allen Tony | Director | 2025-07-30 | Sale | 7.0 | $942.89 |
| Snyman Marcel A. | VP-Chief Accounting Officer | 2025-01-06 | Sale | 159.0 | $881.3 |
| Weymouth Katharine | Director | 2024-11-13 | Sale | 378.0 | $949.26 |
| GAYNER THOMAS SINNICKSON | Director | 2024-09-12 | Purchase | 100.0 | $743.3 |
| MULCAHY ANNE M | Director | 2024-05-28 | Purchase | 135.0 | $745.07 |
| Weymouth Katharine | Director | 2024-03-14 | Sale | 556.0 | $712.99 |
| GAYNER THOMAS SINNICKSON | Director | 2023-11-09 | Purchase | 100.0 | $607.24 |
| Allen Tony | Director | 2023-11-08 | Sale | 75.0 | $619.03 |
| GAYNER THOMAS SINNICKSON | Director | 2023-09-08 | Purchase | 100.0 | $569.83 |
| GAYNER THOMAS SINNICKSON | Director | 2023-05-09 | Purchase | 100.0 | $581.63 |
| Snyman Marcel A. | VP-Chief Accounting Officer | 2023-01-09 | Sale | 128.0 | $617.68 |
| Snyman Marcel A. | VP-Chief Accounting Officer | 2023-01-04 | Sale | 72.0 | $611.06 |
| GAYNER THOMAS SINNICKSON | Director | 2022-09-16 | Purchase | 100.0 | $556.15 |
| Stonesifer Sandra M. | VP, Chief HR Officer | 2021-12-30 | Purchase | 20.0 | $591.99 |
| Markell Jack A. | Director | 2021-12-01 | Purchase | 60.0 | $570.0 |
| GAYNER THOMAS SINNICKSON | Director | 2021-11-11 | Purchase | 100.0 | $595.17 |
| Snyman Marcel A. | VP-Chief Accounting Officer | 2021-11-04 | Sale | 128.0 | $605.07 |
| Snyman Marcel A. | VP-Chief Accounting Officer | 2021-01-06 | Sale | 6.0 | $531.1 |
| Snyman Marcel A. | VP-Chief Accounting Officer | 2021-01-06 | Sale | 66.0 | $527.61 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-22 | Sale | 100.0 | $495.85 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-22 | Sale | 1,809.0 | $497.43 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-22 | Sale | 375.0 | $496.18 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-22 | Sale | 600.0 | $500.35 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-22 | Sale | 2,648.0 | $499.43 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-22 | Sale | 2,583.0 | $498.22 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-22 | Sale | 100.0 | $501.26 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-11 | Sale | 2,455.0 | $456.69 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-11 | Sale | 27.0 | $457.14 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-10 | Sale | 5,085.0 | $455.11 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-08 | Sale | 100.0 | $455.88 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-07 | Sale | 400.0 | $459.44 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-07 | Sale | 1,422.0 | $458.6 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-07 | Sale | 1,297.0 | $460.64 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-07 | Sale | 1,003.0 | $461.15 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-04 | Sale | 1.0 | $467.0 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-04 | Sale | 768.0 | $465.03 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-04 | Sale | 1,685.0 | $466.08 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-03 | Sale | 104.0 | $451.51 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-03 | Sale | 4,056.0 | $450.3 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-02 | Sale | 3,451.0 | $450.38 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-02 | Sale | 411.0 | $451.0 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-01 | Sale | 974.0 | $451.3 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-01 | Sale | 445.0 | $452.79 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-01 | Sale | 390.0 | $453.6 |
| Rosen Andrew Stephen | Executive Vice President | 2020-12-01 | Sale | 1,759.0 | $454.07 |
| Rosen Andrew Stephen | Executive Vice President | 2020-11-24 | Sale | 128.0 | $469.3 |
| Rosen Andrew Stephen | Executive Vice President | 2020-11-24 | Sale | 326.0 | $468.25 |
| Rosen Andrew Stephen | Executive Vice President | 2020-11-24 | Sale | 1,859.0 | $467.48 |
| Rosen Andrew Stephen | Executive Vice President | 2020-11-24 | Sale | 263.0 | $466.37 |
| Rosen Andrew Stephen | Executive Vice President | 2020-11-24 | Sale | 1,822.0 | $465.19 |
| Rosen Andrew Stephen | Executive Vice President | 2020-11-20 | Sale | 5,164.0 | $450.13 |
| Rosen Andrew Stephen | Executive Vice President | 2020-11-11 | Sale | 2,079.0 | $452.06 |
| Rosen Andrew Stephen | Executive Vice President | 2020-11-11 | Sale | 144.0 | $454.23 |
| Rosen Andrew Stephen | Executive Vice President | 2020-11-11 | Sale | 1,025.0 | $455.9 |
| Rosen Andrew Stephen | Executive Vice President | 2020-11-11 | Sale | 1,652.0 | $456.23 |
| Rosen Andrew Stephen | Executive Vice President | 2020-11-11 | Sale | 100.0 | $457.05 |
| Bollinger Lee C | Director | 2020-08-27 | Purchase | 350.0 | $426.0 |
| Weymouth Katharine | Director | 2020-08-25 | Sale | 1,100.0 | $414.73 |
| Bollinger Lee C | Director | 2020-07-02 | Purchase | 300.0 | $340.0 |
| Rosen Andrew Stephen | Executive Vice President | 2020-03-23 | Purchase | 42.0 | $290.98 |
| Rosen Andrew Stephen | Executive Vice President | 2020-03-23 | Purchase | 1,691.0 | $288.43 |
| Markell Jack A. | Director | 2020-03-18 | Purchase | 55.0 | $315.0 |
| MULCAHY ANNE M | Director | 2020-02-28 | Purchase | 104.0 | $485.99 |
| Bollinger Lee C | Director | 2020-02-27 | Purchase | 500.0 | $492.41 |
| MULCAHY ANNE M | Director | 2020-02-27 | Purchase | 100.0 | $494.64 |
| Maas, Jacob | Sr. VP-Planning and Dev. | 2020-02-27 | Purchase | 210.0 | $473.01 |
| Markell Jack A. | Director | 2020-02-27 | Purchase | 55.0 | $470.0 |
| Snyman Marcel A. | VP-Chief Accounting Officer | 2019-01-02 | Sale | 100.0 | $633.07 |
| Snyman Marcel A. | VP-Chief Accounting Officer | 2019-01-02 | Sale | 100.0 | $633.07 |
| Weymouth Katharine | Director | 2018-10-09 | Sale | 1,100.0 | $579.95 |
| Weymouth Katharine | Director | 2018-09-21 | Sale | 700.0 | $590.28 |
| GRAHAM DONALD | Director,TenPercentOwner | 2018-08-03 | Purchase | 150.0 | $561.55 |
| GRAHAM DONALD | Director,TenPercentOwner | 2018-08-03 | Purchase | 25.0 | $559.55 |
| GRAHAM DONALD | Director,TenPercentOwner | 2018-08-03 | Purchase | 50.0 | $557.5 |
| GRAHAM DONALD | Director,TenPercentOwner | 2018-08-03 | Purchase | 215.0 | $556.75 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-03 | Purchase | 150.0 | $561.55 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-03 | Purchase | 25.0 | $559.55 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-03 | Purchase | 50.0 | $557.5 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-03 | Purchase | 215.0 | $556.75 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-03 | Purchase | 150.0 | $561.55 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-03 | Purchase | 24.0 | $559.66 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-03 | Purchase | 50.0 | $557.5 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-03 | Purchase | 216.0 | $556.75 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-02 | Purchase | 1,050.0 | $553.6 |
| GRAHAM DONALD | Director,TenPercentOwner | 2018-08-02 | Purchase | 410.0 | $549.5 |
| GRAHAM DONALD | Director,TenPercentOwner | 2018-08-02 | Purchase | 950.0 | $546.61 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-02 | Purchase | 410.0 | $549.5 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-02 | Purchase | 950.0 | $546.61 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-02 | Purchase | 410.0 | $549.5 |
| O'Shaughnessy Timothy J | President and CEO | 2018-08-02 | Purchase | 950.0 | $546.61 |
| Weymouth Katharine | Director | 2018-07-05 | Sale | 100.0 | $596.25 |
| Weymouth Katharine | Director | 2018-07-05 | Sale | 1,001.0 | $595.0 |
| Weymouth Katharine | Director | 2018-05-11 | Sale | 40.0 | $600.0 |
| Weymouth Katharine | Director | 2018-05-11 | Sale | 949.0 | $601.48 |
| Weymouth Katharine | Director | 2018-05-11 | Sale | 11.0 | $602.73 |
| Weymouth Katharine | Director | 2018-05-11 | Sale | 500.0 | $603.79 |
| Weymouth Katharine | Director | 2017-12-15 | Sale | 529.0 | $564.85 |
| Weymouth Katharine | Director | 2017-12-14 | Sale | 45.0 | $563.0 |
| Weymouth Katharine | Director | 2017-12-14 | Sale | 926.0 | $566.06 |
| O'Shaughnessy Timothy J | President and CEO | 2016-03-23 | Purchase | 1,100.0 | $463.61 |