Nierenberg Investment Management Company, Inc. (CIK 1282683) reported 4 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-07-24). Recent activity: Sell RSVB (5,000 shares), Sell RSVB (5,000 shares), Sell RSVB (5,000 shares), Buy PBPB (22,169 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-24 | RIVERVIEW BANCORP INC (RSVB) | 10% Owner | Sell | 5,000 | $26,250 |
| 2026-07-24 | RIVERVIEW BANCORP INC (RSVB) | 10% Owner | Sell | 5,000 | $26,350 |
| 2026-07-24 | RIVERVIEW BANCORP INC (RSVB) | 10% Owner | Sell | 5,000 | $26,450 |
| 2025-03-31 | POTBELLY CORP (PBPB) | Insider | Buy | 22,169 | $207,502 |
Source: SEC Form 4 filings · as of 2026-07-24