Graff David S (CIK 1604854) reported 3 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-06-17). Recent activity: 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 |
|---|---|---|---|---|---|
| 2026-06-17 | 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 |
Source: SEC Form 4 filings · as of 2026-06-17