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Who owns NB Bancorp (NBBK) stock

157 funds reported NB Bancorp (NBBK) shares in their latest 13F filings, worth $504M in all. The largest holder is BlackRock ($70.4M). Last quarter 77 funds added to their stakes and 64 cut them.

Largest holders of NBBK (13F)Largest holders of NBBK (13F)BlackRock$70.4MVanguard Group$45.6MVanguard Capital Management LLC$35.3MAltraVue Capital, LLC$35.0MPertento Partners LLP$31.2MState Street$31.1MGeode Capital Management, LLC$24.4MDimensional Fund Advisors LP$15.9MGoldman Sachs Group$12.1MHotchkis & Wiley Capital Manageme…$10.6M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock3,331,544$70.4Mincrease2026-06-30
Vanguard Group2,301,034$45.6Mincrease2025-12-31
Vanguard Capital Management LLC1,670,835$35.3Mdecrease2026-06-30
AltraVue Capital, LLC1,655,108$35.0Mincrease2026-06-30
Pertento Partners LLP1,475,770$31.2Mdecrease2026-06-30
State Street1,471,766$31.1Mincrease2026-06-30
Geode Capital Management, LLC1,153,217$24.4Mincrease2026-06-30
Dimensional Fund Advisors LP753,320$15.9Mincrease2026-06-30
Goldman Sachs Group571,954$12.1Mdecrease2026-06-30
Hotchkis & Wiley Capital Management LLC501,172$10.6Mincrease2026-06-30
Nuveen, LLC498,869$10.5Mincrease2026-06-30
FMR LLC497,305$10.5Mincrease2026-06-30
Vanguard Portfolio Management LLC397,046$8.4Mincrease2026-06-30
Legato Capital Management LLC366,090$7.7Mincrease2026-06-30
Northern Trust360,492$7.6Mincrease2026-06-30

NB Bancorp's latest quarter

NB Bancorp, Q3 2026: revenue $76.5M (+48% year over year), operating margin 37.9%, net earnings $23.1M, operating cash flow $70.2M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most NBBK stock?

By the latest 13F filings: BlackRock ($70.4M); Vanguard Group ($45.6M); Vanguard Capital Management LLC ($35.3M); AltraVue Capital, LLC ($35.0M); Pertento Partners LLP ($31.2M).

What is the short interest in NBBK?

1,866,052 shares were sold short at the 2026-10-15 settlement, 3.27% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.