Form 4 for NBBK NB Bancorp, Inc.
Accepted 2026-04-27 14:51:58 ET · period of report 2026-04-24 · accession 0001437749-26-013440 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-04-27 14:51 | 2026-04-24 | NBBK | CAMPANELLI JOSEPH P | Pres, CEO, Dir, COB | F - Tax | $19.82 | -24.4K | 372.3K | -6% | -$483.0K | |
| M | 2026-04-27 14:51 | 2026-04-24 | NBBK | CAMPANELLI JOSEPH P | Pres, CEO, Dir, COB | P - Purchase | $19.45 | +2,500 | 374.8K | +0.7% | +$48.6K |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-04-24 | F | D | 24,371 | $19.82 | 372,290 | D | — | — | (F1) Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026. (F2) Includes shares of restricted stock which vest at a rate of 33 1/3% per year commencing on February 25, 2027. |
| 2 | Common | Common Stock | 2026-04-24 | P | A | 320 | $19.33 | 372,610 | D | — | — | (F1) Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026. (F2) Includes shares of restricted stock which vest at a rate of 33 1/3% per year commencing on February 25, 2027. |
| 3 | Common | Common Stock | 2026-04-24 | P | A | 180 | $19.34 | 372,790 | D | — | — | (F1) Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026. (F2) Includes shares of restricted stock which vest at a rate of 33 1/3% per year commencing on February 25, 2027. |
| 4 | Common | Common Stock | 2026-04-24 | P | A | 500 | $19.37 | 373,290 | D | — | — | (F1) Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026. (F2) Includes shares of restricted stock which vest at a rate of 33 1/3% per year commencing on February 25, 2027. |
| 5 | Common | Common Stock | 2026-04-24 | P | A | 722 | $19.45 | 374,012 | D | — | — | (F1) Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026. (F2) Includes shares of restricted stock which vest at a rate of 33 1/3% per year commencing on February 25, 2027. |
| 6 | Common | Common Stock | 2026-04-24 | P | A | 178 | $19.46 | 374,190 | D | — | — | (F1) Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026. (F2) Includes shares of restricted stock which vest at a rate of 33 1/3% per year commencing on February 25, 2027. |
| 7 | Common | Common Stock | 2026-04-24 | P | A | 100 | $19.47 | 374,290 | D | — | — | (F1) Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026. (F2) Includes shares of restricted stock which vest at a rate of 33 1/3% per year commencing on February 25, 2027. |
| 8 | Common | Common Stock | 2026-04-24 | P | A | 500 | $19.62 | 374,790 | D | — | — | (F1) Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026. (F2) Includes shares of restricted stock which vest at a rate of 33 1/3% per year commencing on February 25, 2027. |