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Mangrove Partners’s NB Bancorp NBBK Stock Holding History

Mangrove Partners’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 		$2.35M Hold
111,356
– – 0.15% 103
2026
Q1 		$2.35M Hold
111,356
– – 0.19% 83
2025
Q4 		$2.21M Sell
111,356
-2,761
-2% -$52.5K 0.18% 66
2025
Q3 		$2.01M Buy
114,117
+10,374
+10% +$190K 0.15% 73
2025
Q2 		$1.85M Hold
103,743
– – 0.2% 61
2025
Q1 		$1.87M Hold
103,743
– – 0.2% 59
2024
Q4 		$1.87M Sell
103,743
-11,527
-10% -$221K 0.21% 59
2024
Q3 		$2.14M Hold
115,270
– – 0.18% 68
2024
Q2 		$1.74M Hold
115,270
– – 0.13% 91
2024
Q1 		$1.57M Buy
+115,270
New +$1.61M 0.11% 111

Other funds holding NBBK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
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

Mangrove Partners's NBBK Position: Q2 2026 in Review

Mangrove Partners held its NB Bancorp (NBBK) position steady in Q2 2026 at 111,356 shares worth $2.35M. The position accounts for 0.15% of the portfolio, ranked #103.

Mangrove Partners 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.

  • Mangrove Partners held 111,356 shares of NB Bancorp worth $2.35M as of Q2 2026.
  • Mangrove Partners left its NB Bancorp share count unchanged in Q2 2026.
  • NB Bancorp made up 0.15% of Mangrove Partners's portfolio in Q2 2026, its #103 holding.
  • Mangrove Partners 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 Mangrove Partners's 13F filing for Q2 2026, filed 14 Aug 2026.