Form 4 for NBBK NB Bancorp, Inc.
Accepted 2026-05-18 16:25:51 ET · period of report 2026-05-15 · accession 0001437749-26-017617 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 2026-05-18 16:25 | 2026-05-15 | NBBK | CAMPANELLI JOSEPH P | Pres, CEO, Dir, COB | P - Purchase | $19.18 | +3,000 | 377.8K | +0.8% | +$57.5K |
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 | 2026-05-15 | P | A | 500 | $19.16 | 375,290 | 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 | 2026-05-15 | P | A | 133 | $19.17 | 375,423 | 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 | 2026-05-15 | P | A | 400 | $19.18 | 375,823 | 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 | 2026-05-15 | P | A | 100 | $19.18 | 375,923 | 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 | 2026-05-15 | P | A | 767 | $19.18 | 376,690 | 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 | 2026-05-15 | P | A | 500 | $19.19 | 377,190 | 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 | 2026-05-15 | P | A | 253 | $19.20 | 377,443 | 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 | 2026-05-15 | P | A | 100 | $19.20 | 377,543 | 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. |
| 9 | Common | Common Stock | 2026-05-15 | P | A | 247 | $19.21 | 377,790 | 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. |