Maas, Jacob Insider Trading -- Recent SEC Form 4 Transactions

Maas, Jacob (CIK 1655513) reported 8 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-01-21). Recent activity: Buy GHC (1,000 shares), Sell GHC (377 shares), Buy GHC (1,000 shares), Sell GHC (501 shares), Buy GHC (2,000 shares). Source: SEC Form 4.

DateCompanyRoleTypeSharesValue
2026-01-21Graham Holdings Co (GHC)Executive VPBuy1,000$0
2026-01-21Graham Holdings Co (GHC)Executive VPSell377$433,738
2025-10-22Graham Holdings Co (GHC)Executive VPBuy1,000$0
2025-10-22Graham Holdings Co (GHC)Executive VPSell501$494,848
2025-08-21Graham Holdings Co (GHC)Executive VPBuy2,000$1.6M
2025-08-21Graham Holdings Co (GHC)Executive VPSell1,752$1.9M
2025-01-29Graham Holdings Co (GHC)Executive VPBuy1,000$0
2025-01-29Graham Holdings Co (GHC)Executive VPSell438$402,198

Source: SEC Form 4 filings · as of 2026-01-21