NB Bancorp, Inc.
NBBK · Savings Institutions, Not Federally Chartered · 44.7M shares · +0%/yr ↓ buyback · EDGAR filings ↗
Net buyback after stock comp: $74M (gross $77M, SBC $3M)
Reference price $19.16 · est. market cap ~$857M — last insider purchase, 2026-05-15 (estimated from the dated SEC Form 4 price × shares outstanding — not a live quote)
Grade
C66NB Bancorp — recently-converted Massachusetts thrift, over-capitalized.
Strengths
- Strong free cash flow (88th pct); ROA (62nd); ample capital
Risks
- ROE 5.9% (64th) — excess capital
- CRE/rate sensitivity
Notable findings
Key metrics
Return on equity
5.9%
Return on assets
0.7%
Net-income growth
19.3%
Free cash flow
$57M
Tangible book value
$821M
Insider transactions · last 18 months
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| 2026-05-15 | CAMPANELLI JOSEPH P | Buy | 247 | $19.21 |
| 2026-05-15 | CAMPANELLI JOSEPH P | Buy | 500 | $19.16 |
| 2026-05-15 | CAMPANELLI JOSEPH P | Buy | 133 | $19.17 |
| 2026-05-15 | CAMPANELLI JOSEPH P | Buy | 400 | $19.18 |
| 2026-05-15 | CAMPANELLI JOSEPH P | Buy | 100 | $19.18 |
| 2026-05-15 | CAMPANELLI JOSEPH P | Buy | 767 | $19.18 |
| 2026-05-15 | CAMPANELLI JOSEPH P | Buy | 500 | $19.19 |
| 2026-05-15 | CAMPANELLI JOSEPH P | Buy | 253 | $19.20 |
| 2026-05-15 | CAMPANELLI JOSEPH P | Buy | 100 | $19.20 |
| 2026-04-24 | CAMPANELLI JOSEPH P | Tax withheld | 24K | $19.82 |
| 2026-04-24 | CAMPANELLI JOSEPH P | Buy | 320 | $19.33 |
| 2026-04-24 | CAMPANELLI JOSEPH P | Buy | 180 | $19.34 |
| 2026-04-24 | CAMPANELLI JOSEPH P | Buy | 500 | $19.37 |
| 2026-04-24 | CAMPANELLI JOSEPH P | Buy | 722 | $19.45 |
| 2026-04-24 | CAMPANELLI JOSEPH P | Buy | 178 | $19.46 |
| 2026-04-24 | CAMPANELLI JOSEPH P | Buy | 100 | $19.47 |
| 2026-04-24 | CAMPANELLI JOSEPH P | Buy | 500 | $19.62 |
| 2026-04-24 | Darcey William | Tax withheld | 4.9K | $19.82 |
| 2026-04-24 | Jackson Angela | Tax withheld | 4.9K | $19.82 |
| 2026-04-24 | Whalen Mark | Tax withheld | 4.9K | $19.82 |
| 2026-04-24 | NOLAN JOSEPH R JR | Tax withheld | 4.9K | $19.82 |
| 2026-04-24 | Montgomery Kenneth C. | Tax withheld | 5.0K | $19.82 |
| 2026-04-24 | Lynch Christopher R. | Tax withheld | 4.2K | $19.82 |
| 2026-04-24 | Roberts Christine | Tax withheld | 3.6K | $19.82 |
| 2026-04-24 | Pascucci Hope | Buy | 10K | $19.44 |
| 2026-04-24 | Pascucci Hope | Buy | 10K | $19.49 |
| 2026-03-19 | CAMPANELLI JOSEPH P | Buy | 2.5K | $20.16 |
| 2026-03-09 | Schulman Matthew G | Grant | 7.0K | — |
| 2026-03-09 | Lapointe Jean-Pierre | Buy | 1.0K | $20.42 |
| 2026-03-06 | CAMPANELLI JOSEPH P | Buy | 2.0K | $20.78 |
| 2026-03-06 | CAMPANELLI JOSEPH P | Buy | 3.0K | $20.77 |
| 2026-03-06 | CAMPANELLI JOSEPH P | Buy | 2.0K | $20.78 |
| 2026-03-06 | CAMPANELLI JOSEPH P | Buy | 3.0K | $20.77 |
| 2026-02-25 | Lapointe Jean-Pierre | Grant | 14K | — |
| 2026-02-25 | Maiona Stephanie | Grant | 6.9K | — |
| 2026-02-25 | Roberts Christine | Grant | 14K | — |
| 2026-02-25 | Daley James B. | Grant | 6.9K | — |
| 2026-02-25 | CAMPANELLI JOSEPH P | Grant | 63K | — |
| 2026-02-25 | White James J. | Grant | 6.9K | — |
| 2026-02-25 | EVANGELISTA PAUL A | Grant | 6.9K | — |
| 2026-02-25 | Henkin Kevin | Grant | 6.9K | — |
| 2026-02-25 | Richardson Matthew | Grant | 14K | — |
| 2026-01-02 | Ayoub Paul J. | Grant | 7.2K | — |
| 2026-01-02 | Reilly Joseph B | Grant | 2.4K | — |
| 2026-01-02 | Elliott Mary Susan | Grant | 5.5K | — |
| 2026-01-02 | Lynch Christopher R. | Grant | 7.7K | — |
| 2026-01-02 | Whalen Mark | Grant | 2.4K | — |
| 2026-01-02 | Montgomery Kenneth C. | Grant | 4.8K | — |
| 2026-01-02 | Jackson Angela | Grant | 2.4K | — |
| 2026-01-02 | NOLAN JOSEPH R JR | Grant | 2.4K | — |
| 2026-01-02 | Raza Muhammad | Grant | 2.4K | — |
| 2026-01-02 | Pascucci Hope | Grant | 2.4K | — |
| 2026-01-02 | Orfanello Francis | Grant | 5.4K | — |
| 2026-01-02 | Darcey William | Grant | 2.4K | — |
| 2025-12-19 | EVANGELISTA PAUL A | Buy | 2.0K | $20.87 |
| 2025-11-10 | Lynch Christopher R. | Gift | 2.7K | — |
| 2025-10-30 | Lynch Christopher R. | Gift | 600 | — |
| 2025-10-28 | Pascucci Hope | Buy | 4.7K | $18.07 |
| 2025-09-16 | Lynch Christopher R. | Gift | 600 | — |
| 2025-09-12 | Montgomery Kenneth C. | Buy | 5.0K | $18.44 |
| 2025-09-10 | Lynch Christopher R. | Gift | 600 | — |
| 2025-09-09 | Lynch Christopher R. | Gift | 600 | — |
| 2025-08-11 | Darcey William | Buy | 139 | $17.29 |
| 2025-08-11 | Darcey William | Buy | 4.9K | $17.30 |
| 2025-07-25 | EVANGELISTA PAUL A | Buy | 500 | $18.39 |
| 2025-06-10 | Bakkala Peter | I | 13K | $16.59 |
| 2025-06-09 | CAMPANELLI JOSEPH P | Buy | 900 | $16.35 |
| 2025-06-09 | CAMPANELLI JOSEPH P | Buy | 100 | $16.33 |
| 2025-06-09 | CAMPANELLI JOSEPH P | Buy | 5.0K | $16.29 |
| 2025-06-09 | EVANGELISTA PAUL A | Buy | 1.0K | $16.29 |
| 2025-06-09 | CAMPANELLI JOSEPH P | Buy | 1.0K | $16.03 |
| 2025-05-02 | Elliott Mary Susan | Buy | 1.4K | $21.39 |
| 2025-04-29 | Orfanello Francis | Buy | 5.0K | $17.09 |
| 2025-04-24 | Ayoub Paul J. | Grant | 75K | — |
| 2025-04-24 | Orfanello Francis | Grant | 75K | — |
| 2025-04-24 | Lynch Christopher R. | Grant | 75K | — |
| 2025-04-24 | Jackson Angela | Grant | 75K | — |
| 2025-04-24 | Elliott Mary Susan | Grant | 75K | — |
| 2025-04-24 | Darcey William | Grant | 75K | — |
| 2025-04-24 | NOLAN JOSEPH R JR | Grant | 75K | — |
| 2025-04-24 | Lapointe Jean-Pierre | Grant | 91K | — |
| 2025-04-24 | CAMPANELLI JOSEPH P | Grant | 274K | — |
| 2025-04-24 | Roberts Christine | Grant | 61K | — |
| 2025-04-24 | Whalen Mark | Grant | 75K | — |
| 2025-04-24 | Raza Muhammad | Grant | 75K | — |
| 2025-04-24 | Montgomery Kenneth C. | Grant | 75K | — |
| 2025-04-24 | Pascucci Hope | Grant | 75K | — |
| 2025-03-18 | EVANGELISTA PAUL A | Buy | 500 | $18.74 |
| 2025-03-11 | CAMPANELLI JOSEPH P | Buy | 2.0K | $17.75 |
| 2025-01-24 | Lapointe Jean-Pierre | Buy | 900 | $18.85 |
| 2025-01-24 | Pascucci Hope | Buy | 40K | $18.53 |
| 2025-01-24 | Elliott Mary Susan | Buy | 10K | $18.72 |
All non-derivative Form 4 activity (SEC), newest first.
Notable events (8-K)
| Date | Items | |
|---|---|---|
| 2026-05-21 | OtherExhibits | filing ↗ |
| 2026-05-13 | Other | filing ↗ |
| 2026-04-29 | Shareholder vote | filing ↗ |
| 2026-04-22 | ResultsExec/director changeOtherExhibits | filing ↗ |
| 2026-02-04 | OtherExhibits | filing ↗ |
| 2026-01-22 | ResultsOtherExhibits | filing ↗ |
| 2025-11-17 | Acquisition/dispositionExec/director changeReg FDExhibits | filing ↗ |
| 2025-11-14 | OtherExhibits | filing ↗ |
Recent filings
| Form | Filed | Period | Accession |
|---|---|---|---|
| 8-K | 2026-05-21 | 2026-05-21 | 0001104659-26-064982 ↗ |
| 8-K | 2026-05-13 | 2026-05-12 | 0001104659-26-060111 ↗ |
| 10-Q | 2026-05-08 | 2026-03-31 | 0001104659-26-057822 ↗ |
| 8-K | 2026-04-29 | 2026-04-29 | 0001104659-26-051401 ↗ |
| 8-K | 2026-04-22 | 2026-04-22 | 0001104659-26-046868 ↗ |
| 10-K | 2026-03-03 | 2025-12-31 | 0001104659-26-022367 ↗ |
| 8-K | 2026-02-04 | 2026-02-04 | 0001104659-26-010122 ↗ |
| 8-K | 2026-01-22 | 2026-01-22 | 0001104659-26-005790 ↗ |
| 8-K | 2025-11-17 | 2025-11-15 | 0001104659-25-112965 ↗ |
| 8-K | 2025-11-14 | 2025-11-14 | 0001104659-25-112627 ↗ |
| 8-K | 2025-11-13 | 2025-11-13 | 0001104659-25-110932 ↗ |
| 8-K/A | 2025-11-13 | 2025-11-13 | 0001104659-25-111189 ↗ |