GRAHAM HOLDINGS COMPANY (GHC) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for GHC. 13F holdings as of 2026-03-31.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 415,637 | $439M | INCREASED |
| Madison Avenue Partners, LP | 245,829 | $260M | UNCHANGED |
| DIMENSIONAL FUND ADVISORS LP | 235,043 | $249M | DECREASED |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 173,937 | $184M | NEW |
| Wallace Capital Management Inc. | 155,071 | $164M | DECREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Timothy J O'Shaughnessy (President and CEO) | OTHER | 6,000 | 2026-05-26 | |
| Timothy J O'Shaughnessy (President and CEO) | OTHER | 400 | 2026-05-26 | |
| Timothy J O'Shaughnessy (President and CEO) | OTHER | 5,600 | 2026-05-26 | |
| Katharine Weymouth (Director) | OTHER | 6,000 | 2026-05-26 | |
| Laura O'Shaughnessy (10% Owner) | OTHER | 6,000 | 2026-05-26 |
Full institutional holdings, insider history, and congressional trades for GRAHAM HOLDINGS COMPANY on SentiSense.