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Insider Trading Intelligence
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JC

Joseph P. Campanelli

NBBK
PRESIDENT & CEO · NB BANCORP, INC. · CIK 0001222378
FILING MIX · LIFETIME98%/2%
BUYS
44
SELLS
1
TOTAL VALUE
$1.83M
COMPANIES
1
ACTIVE SINCE
Mar 2024
HOLDINGS NOW
377,190
AVG SELL PX
$19.82
TRADE KIND
SHOWING 45 / 45
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
31 backtested trades · 8 horizons · 44 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Joseph P. Campanelli, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d31+70.97%+0.59%+0.35%+0.25%+0.09%0.93
14d31+87.10%+3.06%+1.92%+1.15%+0.27%2.14
30d31+51.61%+4.02%+2.86%+2.34%+2.17%—
60d31+64.52%+2.41%+5.12%-2.71%-2.70%-2.34
90d31(7 pending)+83.33%+12.42%+6.57%+7.70%+6.27%—
180d31(10 pending)+100.00%+26.32%+12.72%+13.60%+12.29%—
1y31(10 pending)+95.24%+22.60%+15.62%+6.98%+7.98%—
2y31(17 pending)+100.00%+44.67%+38.76%+5.91%+5.83%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
NBBK · 377,190 shares · as of May 15, 2026
099,165198,331297,496396,66120252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 44 buys / 1 sellsCOVERAGE · 10 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
100$19.21$1.9K377,543May 15, 2026May 18, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
253$19.20$4.9K377,443May 15, 2026May 18, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
500$19.19$9.6K377,190May 15, 2026May 18, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
767$19.18$14.7K376,690May 15, 2026May 18, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
247$19.21$4.7K377,790May 15, 2026May 18, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
500$19.16$9.6K375,290May 15, 2026May 18, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
100$19.18$1.9K375,923May 15, 2026May 18, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
400$19.18$7.7K375,823May 15, 2026May 18, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
133$19.17$2.5K375,423May 15, 2026May 18, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
500$19.37$9.7K373,290Apr 24, 2026Apr 27, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
500$19.63$9.8K374,790Apr 24, 2026Apr 27, 2026 ↗View →
NBBK
NB BANCORP, INC.
SALE
President & CEO
24,371$19.82$483.0K372,290Apr 24, 2026Apr 27, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
100$19.47$1.9K374,290Apr 24, 2026Apr 27, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
178$19.46$3.5K374,190Apr 24, 2026Apr 27, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
180$19.34$3.5K372,790Apr 24, 2026Apr 27, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
722$19.45$14.0K374,012Apr 24, 2026Apr 27, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
320$19.33$6.2K372,610Apr 24, 2026Apr 27, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
2,500$20.16$50.4K396,661Mar 19, 2026Mar 19, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
3,000$20.77$62.3K3,000Mar 6, 2026Mar 9, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
2,000$20.78$41.6K47,000Mar 6, 2026Mar 9, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
2,000$20.78$41.6K47,000Mar 6, 2026Mar 20, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
3,000$20.77$62.3K3,000Mar 6, 2026Mar 20, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASEGRANT
Stock grant
63,015——394,161Feb 25, 2026Feb 27, 2026 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
900$16.35$14.7K331,146Jun 9, 2025Jun 10, 2025 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
100$16.33$1.6K330,246Jun 9, 2025Jun 10, 2025 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
5,000$16.29$81.5K45,000Jun 9, 2025Jun 10, 2025 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
1,000$16.03$16.0K330,146Jun 9, 2025Jun 10, 2025 ↗View →
NBBK
NB BANCORP, INC.
PURCHASEGRANT
Stock grant
274,146——329,146Apr 24, 2025Apr 28, 2025 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
2,000$17.75$35.5K55,000Mar 11, 2025Mar 13, 2025 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
3,000$16.44$49.3K53,000Aug 5, 2024Aug 6, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
5,000$17.49$87.5K50,000Aug 2, 2024Aug 6, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
2,047$14.62$29.9K45,000Apr 26, 2024Apr 30, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
3,857$14.59$56.3K38,453Apr 26, 2024Apr 30, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
2,319$14.58$33.8K34,596Apr 26, 2024Apr 30, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
4,500$14.60$65.7K42,953Apr 26, 2024Apr 30, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
1,418$14.55$20.6K31,678Apr 26, 2024Apr 30, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
599$14.57$8.7K32,277Apr 26, 2024Apr 30, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
260$14.54$3.8K30,260Apr 26, 2024Apr 30, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
4,000$13.85$55.4K30,000Mar 8, 2024Mar 11, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
1,000$13.90$13.9K30,000Mar 8, 2024Mar 11, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
1,000$13.90$13.9K29,000Mar 8, 2024Mar 11, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
1,000$13.78$13.8K27,000Mar 8, 2024Mar 11, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
1,000$13.82$13.8K28,000Mar 8, 2024Mar 11, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
25,000$13.97$349.3K26,000Mar 1, 2024Mar 5, 2024 ↗View →
NBBK
NB BANCORP, INC.
PURCHASE
President & CEO
1,000$13.89$13.9K1,000Mar 1, 2024Mar 5, 2024 ↗View →
Other insiders · NBBK
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About this filer
CIK 0001222378
ROLE
President & CEO
PRIMARY
NBBK
COMPANIES
1
ACTIVE SINCE
Mar 2024
MARKETPEEL · /INSIDER/0001222378DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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