Maas, Jacob 内部人交易：近期 SEC Form 4 交易
过去 18 个月，Maas, Jacob（CIK 1655513）在 1 家公司共报告 8 笔 SEC Form 4 内部人交易（最近一笔 2026-08-31）。
| 日期 | 公司 | 身份 | 类型 | 股数 | 市值 |
|---|---|---|---|---|---|
| 2026-08-31 | Graham Holdings Co (GHC) | Executive VP | 买入 | 1,000 | $0 |
| 2026-08-31 | Graham Holdings Co (GHC) | Executive VP | 卖出 | 501 | $580,774 |
| 2026-01-21 | Graham Holdings Co (GHC) | Executive VP | 买入 | 1,000 | $0 |
| 2026-01-21 | Graham Holdings Co (GHC) | Executive VP | 卖出 | 377 | $433,738 |
| 2025-10-22 | Graham Holdings Co (GHC) | Executive VP | 买入 | 1,000 | $0 |
| 2025-10-22 | Graham Holdings Co (GHC) | Executive VP | 卖出 | 501 | $494,848 |
| 2025-08-21 | Graham Holdings Co (GHC) | Executive VP | 买入 | 2,000 | $1.6M |
| 2025-08-21 | Graham Holdings Co (GHC) | Executive VP | 卖出 | 1,752 | $1.9M |
来源：SEC Form 4 申报文件 · 截至 2026-08-31