NBBK NB Bancorp, Inc. Insider Trading

NBBK President & CEO Campanelli buys 3,000 shares for $57,546.60 via 9 transactions at avg $19.18 amid 30-day -13.5% decline

Joseph P Campanelli, President & CEO of NB Bancorp, executed 9 separate open-market purchases totaling 3,000 shares for $57,546.60 on 2026-05-15, increasing his holdings by 3,000 shares to 377,790 shares post-transaction. The blended average purchase price of $19.18 compares to a current price of $19.47 (at time of filing), occurring against a backdrop of significant recent weakness: the stock is down 13.5% over the past 30 days and 12.6% over 90 days. His prior trades at NBBK have not demonstrated positive timing patterns, with 5 earlier buys from 2026-04-24 all showing negative returns at both the 30-day and 90-day marks, with a 90d win rate of zero. While his cross-ticker track record shows a 45.00% 90d win rate with average 90d returns of +6.2%, that performance has not translated to timing success in this specific stock.

NBBK C-suite insider buys 26,000+ shares at modest discount amid multi-quarter pullback

A senior executive at NB Bancorp made a substantial open-market purchase of over 26,000 shares, demonstrating meaningful conviction in the company's value. The timing is notable: the stock has retreated from its highs over recent months and is currently trading at a discount to where it traded earlier this year, suggesting the insider views the pullback as an opportunity rather than a warning sign. NB Bancorp is a solidly profitable financial institution with reasonable valuation metrics, generating strong quarterly earnings and supported by a modest market capitalization. The insider's willingness to deploy significant capital at current levels—particularly the larger 24,000+ share tranche representing over 6% of their holdings—signals confidence that the market has overreacted to recent headwinds. This behavior is especially credible coming from a C-suite officer who likely has deep visibility into company operations and near-term catalysts.

Director Pascucci Hope bought 20,000 shares of NBBK at blended average $19.46 on 2026-04-24

Pascucci Hope (Director) executed 2 separate purchases totaling 20,000 shares for $389,281.00 at an average price of $19.46, increasing her holdings by 16.3% from 122,402 to 142,402 shares. The stock currently trades at $19.82, just 1.8% above the transaction price, and sits -12.5% from its 52-week high of $22.64. Her cross-ticker track record shows 4 prior open-market buys with a 50.00% 90-day win rate and mixed near-term returns, while her same-ticker history at NBBK spans three prior purchases with one prior buy (2025-10-28) delivering +13.7% in 90 days. The material size of this acquisition—a 16.3% increase in her already-substantial 122.4K share position—combined with her director status warrants attention, though the execution at prices near current levels and modest distance from recent trading ranges provides limited immediate confirmation of forward-looking conviction.

CEO Joseph P Campanelli buys 2,500 shares of NBBK at $20.16; follows pattern of well-timed prior purchases at this ticker.

President & CEO Joseph P Campanelli purchased 2,500 shares at $20.16 on 2026-03-19, increasing his holdings to 396.7K shares. This follows a documented pattern: his prior five trades at NBBK (three buys on 2025-06-09 and two buys on 2026-03-06) show all measurable outcomes with 90d positive returns (15.4%–18.0%), indicating consistent well-timed entries at this ticker. His cross-ticker track record is similarly strong—19 prior buys averaging +16.4% over 90 days with a 94.12% win rate—though this NBBK-specific pattern is the more relevant parallel. The stock has declined 7.5% over the past 30 days and sits 7.9% below the 52-week high, creating a context of recent weakness. The open-market purchase is a discretionary signal that warrants investor attention to any operational or valuation developments that may have prompted the CEO's conviction at this price level.

NBBK CEO Campanelli buys 5,000 shares for $103,870.00 in 2 transactions; CEO's prior NBBK buys showed 80% 90-day win rate.

Joseph P. Campanelli, President & CEO, purchased 5,000 shares across 2 separate transactions on 2026-03-06 at a blended average price of $20.77, investing $103,870.00 in aggregate. His NBBK same-ticker history shows 4 of 5 prior buys were well-timed at the 90-day mark, with the four successful trades posting 90-day returns of +17.6%, +15.4%, +15.3%, and +15.7%, though one prior purchase on 2025-03-11 underperformed with a 90d return of -8.6%. The stock currently trades at $20.91, down 6.5% from its 52-week high of $22.37 but up 1.6% over the past 90 days. At the current price, the CEO's post-transaction holding stands at 3,000 shares, compared to a pre-transaction position of -2,000 shares (reflecting a net acquisition of 5,000 shares). This buy comes at a valuation of 14.32 P/E against net income of $15,362,000.00 and a market cap of $953,595,824.34.

NBBK CFO Lapointe buys 1,000 shares at $20.42; 75% of prior NBBK trades well-timed at 90-day horizon.

Lapointe Jean-Pierre, SEVP and CFO of NB Bancorp, purchased 1,000 shares at $20.42 on 2026-03-09, raising his holdings to 110,331 shares. The stock is currently trading at $20.91, down 6.5% from its 52-week high of $22.37. Critically, his prior four open-market buys at NBBK demonstrate a strong 90-day timing pattern, with 3 of 4 prior purchases followed by positive 90-day returns, including gains of +8.0%, +14.8%, and +7.6%. His cross-ticker track record across all holdings shows a 75% win rate with an average 90-day return of +5.2%, suggesting consistent execution on buy timing. The modest purchase size ($20.4K) and stock fundamentals—P/E of 14.32 and market cap of $953.6M—place this in the context of a stable, modestly valued bank stock where the insider's historical buy selections have predominantly worked out over the three-month window.

Director Elliott Mary Susan purchased 11,434 shares across 2 transactions for $217,873.26, blended average $19.05, with stock near 52-week highs.

Elliott Mary Susan, a director at NB Bancorp, made 2 separate purchases totaling 11,434 shares for $217,873.26, with a blended average price of $19.05. The first purchase of 10,000 shares at $18.72 on 2025-01-24 was followed by a second purchase of 1,434 shares at $21.39 on 2025-05-02, showing purchases at incrementally higher prices as the stock rallied. The current price of $21.72 is at the 52-week high, with the stock up 9.6% over 30 days and 20.2% over 90 days, indicating sustained upward momentum in the period since the initial purchase. At a P/E of 14.88 and market cap of $865,030,407.12, the company trades at a modest multiple. The director's sequential accumulation across rising price levels is the primary observable pattern in this filing.

EVP Paul Evangelista buys 2,000 NBBK shares at $20.87; stock up 15.8% in 30 days.

Paul Evangelista, EVP and Director of Special Banking Center at NB Bancorp, purchased 2,000 shares at $20.87 on 2025-12-19, increasing his holdings by 8.1% to 26,566 shares. The timing coincides with a strong recent rally: NBBK has risen 15.8% over the past 30 days and 14.6% over 90 days, trading near its 52-week high of $21.39. His same-ticker purchase history shows mixed outcomes—of his 5 prior buys at NBBK, only 2 were well-timed at the 90-day mark, with a recent June purchase showing +16.1% in 30 days but an earlier March purchase showing -12.4% in the same period. The company's P/E of 14.48 and market cap of $841.9M suggest a modestly valued regional bank, though the cross-ticker track record shows his prior buys averaged -1.7% over 30 days, a caution flag on buy-side timing more broadly.

Director Pascucci Hope buys 4,688 shares of NBBK at $18.07; holdings rise to 120,000 shares post-transaction.

Director Pascucci Hope purchased 4,688 shares of NB Bancorp at $18.07 on 2025-10-28, increasing her position to 120,000 shares. The transaction occurred at a price 1.1% above the current $17.87 market level and 14.7% below the 52-week high of $20.94, suggesting the purchase was made during a period of relative weakness for the stock. Across her prior trades at NBBK, the insider's timing has not been favorable: her January 2025 buy showed a 30-day gain of +1.9% but a 90-day loss of -8.2%, and her December 2023 buy, while up +7.1% at 30 days, cannot yet be measured at 90 days; her cross-ticker track record shows zero well-timed buys at the 90-day mark. The company trades at a P/E of 13.85 with a $711.7M market cap and $14.6M in net income, providing a stable fundamental backdrop.

Director Montgomery Kenneth C. purchases 5,000 NBBK shares at $18.44; holdings rise to 80,337 shares post-transaction.

Kenneth Montgomery, a director of NB Bancorp, Inc., purchased 5,000 shares at $18.44 on 2025-09-12, increasing his stake by 6.6% to 80,337 shares. The transaction occurred near the bottom of the 52-week trading range ($15.76–$20.94), approximately 11.2% below the 52-week high. His prior purchase at NBBK on 2024-09-19 showed a 90-day return of +2.4%, consistent with his cross-ticker track record of a 100.00% 90-day win rate across 1 prior open-market buy. Current price at $18.60 reflects a 3.0% gain over the prior 30 days and 15.7% gain over 90 days, placing the stock in positive momentum territory. The company's P/E of 14.42 and market cap of $740.8M suggest a smaller regional bank with modest valuation multiples.