Graff David S (CIK 1604854) reported 5 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-09-16). Recent activity: Buy BOC (5,252 shares), Buy NNI (93 shares), Buy NNI (1,535 shares), Buy BOC (4,894 shares), Buy NNI (1,779 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-16 | BOSTON OMAHA Corp (BOC) | Director | Buy | 5,252 | $72,005 |
| 2026-09-16 | NELNET INC (NNI) | Director | Buy | 93 | $10,078 |
| 2026-06-17 | NELNET INC (NNI) | Director | Buy | 1,535 | $170,017 |
| 2025-11-26 | BOSTON OMAHA Corp (BOC) | Director | Buy | 4,894 | $60,000 |
| 2025-06-18 | NELNET INC (NNI) | Director | Buy | 1,779 | $170,037 |
来源：SEC Form 4 申报文件 · 截至 2026-09-16