BlackRock
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BlackRock’s NB Bancorp NBBK Stock Holding History

BlackRock’s Portfolio NBBK Stock Details NBBK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$70.4M Buy
3,331,544
+247,322
+8% +$5.09M ﹤0.01% 2450
2026
Q1 		$65M Sell
3,084,222
-19,548
-0.6% -$411K ﹤0.01% 2343
2025
Q4 		$61.5M Buy
3,103,770
+281,645
+10% +$5.36M ﹤0.01% 2388
2025
Q3 		$49.8M Sell
2,822,125
-59,232
-2% -$1.09M ﹤0.01% 2499
2025
Q2 		$51.5M Sell
2,881,357
-259,490
-8% -$4.38M ﹤0.01% 2428
2025
Q1 		$56.8M Sell
3,140,847
-134,092
-4% -$2.49M ﹤0.01% 2310
2024
Q4 		$59.1M Sell
3,274,939
-20,981
-0.6% -$403K ﹤0.01% 2353
2024
Q3 		$61.2M Buy
3,295,920
+184,532
+6% +$3.26M ﹤0.01% 2355
2024
Q2 		$46.9M Buy
3,111,388
+2,371,120
+320% +$34.5M ﹤0.01% 2448
2024
Q1 		$10.1M Buy
+740,268
New +$10.3M ﹤0.01% 3344

Other funds holding NBBK

Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AC
AltraVue Capital Bellevue, Washington $1.39B AUM 53.77% 1-Year Est. Return
PP
Pertento Partners London, United Kingdom $1.86B AUM 53.86% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
TCM
Tieton Capital Management Yakima, Washington $348M AUM 45.13% 1-Year Est. Return
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management Los Angeles, California $34.3B AUM 22.63% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

BlackRock's NBBK Position: Q2 2026 in Review

BlackRock increased its NB Bancorp (NBBK) stake by 8% in Q2 2026, buying an estimated $5.09M and bringing the position to 3,331,544 shares worth $70.4M. The position accounts for ﹤0.01% of the portfolio, ranked #2450.

BlackRock first reported a position in NBBK in Q1 2024 and has held it in 10 quarters since. 161 funds tracked by Wall St. Rank hold NBBK as of Q2 2026.

  • BlackRock held 3,331,544 shares of NB Bancorp worth $70.4M as of Q2 2026.
  • BlackRock bought 247,322 NB Bancorp shares in Q2 2026, an estimated $5.09M.
  • NB Bancorp made up ﹤0.01% of BlackRock's portfolio in Q2 2026, its #2450 holding.
  • BlackRock first reported a position in NB Bancorp in Q1 2024 and has held it in 10 quarters since.
  • 161 funds tracked by Wall St. Rank held NB Bancorp as of Q2 2026.

Based on BlackRock's 13F filing for Q2 2026, filed 7 Aug 2026.