Updated Jul 16, 2026
CAMPANELLI JOSEPH P has filed 2 SEC Form 4 filings across 1 company in the last 90 days — buying. Lifetime open-market purchases: $478K. Historical track record: 5/5 stars across 9 tracked purchases.
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★★★★★ (5/5) |
|---|---|
| Total purchases tracked | 9 |
| Purchases with forward-return data | 9 |
| 30-day win rate | 10000% |
| 90-day win rate | 4444% |
| Avg 5-day return | -30.48% |
| Avg 30-day return | +997.89% |
| Avg 90-day return | +449.25% |
| Best 30-day return | +1664.61% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-18 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 247 | $19.21 | $5K |
| 2026-05-18 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 100 | $19.20 | $2K |
| 2026-05-18 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 253 | $19.20 | $5K |
| 2026-05-18 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 500 | $19.19 | $10K |
| 2026-05-18 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 767 | $19.18 | $15K |
| 2026-05-18 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 100 | $19.18 | $2K |
| 2026-05-18 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 400 | $19.18 | $8K |
| 2026-05-18 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 133 | $19.17 | $3K |
| 2026-05-18 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 500 | $19.16 | $10K |
| 2026-04-27 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 500 | $19.62 | $10K |
| 2026-04-27 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 100 | $19.47 | $2K |
| 2026-04-27 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 178 | $19.46 | $3K |
| 2026-04-27 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 722 | $19.45 | $14K |
| 2026-04-27 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 500 | $19.37 | $10K |
| 2026-04-27 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 180 | $19.34 | $3K |
| 2026-04-27 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 320 | $19.33 | $6K |
| 2026-04-27 | NBBK | NB Bancorp, Inc. | F — Tax withholding / forfeiture | 24.4K | $19.82 | $483K |
| 2026-03-20 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 3.0K | $20.77 | $62K |
| 2026-03-20 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 2.0K | $20.78 | $42K |
| 2026-03-19 | NBBK | NB Bancorp, Inc. | P — Open-market purchase | 2.5K | $20.16 | $50K |
CAMPANELLI JOSEPH P is a corporate insider — currently tracked as President & CEO, Director of NB Bancorp, Inc. (NBBK). InsiderAlpha tracks every SEC Form 4 filing in real time.
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 25 open-market purchases ($478K) and 0 open-market sales () across all tracked filings.
Across 9 tracked purchases, CAMPANELLI JOSEPH P averaged +997.9% avg 30-day return with a 10000% 30-day win rate. InsiderAlpha rates the track record at 5/5 stars.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live CAMPANELLI JOSEPH P profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.