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NB Bancorp

145 hedge funds and large institutions have $339M invested in NB Bancorp in 2025 Q3 according to their latest regulatory filings, with 28 funds opening new positions, 44 increasing their positions, 45 reducing their positions, and 13 closing their positions.

New
Increased
Maintained
Reduced
Closed

30,057% more call options, than puts

Call options by funds: $2.11M | Put options by funds: $7K

115% more first-time investments, than exits

New positions opened: 28 | Existing positions closed: 13

12% more funds holding

Funds holding: 130145 (+15)

2.05% more ownership

Funds ownership: 46.14%48.19% (+2.1%)

1% more capital invested

Capital invested by funds: $334M → $339M (+$4.44M)

2% less repeat investments, than reductions

Existing positions increased: 44 | Existing positions reduced: 45

Holders
145
Holders Change
+15
Holders Change %
+11.54%
% of All Funds
1.9%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
28
Increased
44
Reduced
45
Closed
13
Calls
$2.11M
Puts
$7K
Net Calls
+$2.1M
Net Calls Change
+$1.23M
Name Holding Trade Value Shares
Change
Change in
Stake
Commonwealth Equity Services
151
Commonwealth Equity Services
Massachusetts
-$249K -13,924 Closed
PP
152
PDT Partners
New York
-$229K -12,803 Closed
VOYA Investment Management
153
VOYA Investment Management
Georgia
-$210K -11,769 Closed
ASRS
154
Arizona State Retirement System
Arizona
-$207K -11,601 Closed
BIA
155
Barry Investment Advisors
Massachusetts
-$179K -10,000 Closed
PAS
156
Point72 Asia (Singapore)
Singapore
-$41.5K -2,324 Closed
Simplex Trading
157
Simplex Trading
Illinois
-$11K -601 Closed
TCM
158
Traub Capital Management
Massachusetts
-$4.46K -250 Closed

NBBK Hedge Fund Activity: Q3 2025 in Review

145 of the 7,620 institutional investors tracked by Wall St. Rank reported a position in NB Bancorp (NBBK) for Q3 2025, worth a combined $339M — up 1.3% from $334M a quarter earlier.

Buyers outnumbered sellers: 28 funds opened new NBBK positions and 13 closed out — a net gain of 15 holders — while 44 added to existing stakes and 45 trimmed.

The largest buyer was UBS Group, adding an estimated $5.04M. The largest seller was Deutsche Bank, cutting an estimated $2.9M.

  • 145 institutional investors held NB Bancorp (NBBK) as of Q3 2025, up from 130 in Q2 2025.
  • Funds reported $339M of NB Bancorp stock for Q3 2025, up 1.3% quarter-over-quarter.
  • 28 funds opened new NB Bancorp positions in Q3 2025 and 13 closed out, a net change of +15 holders.
  • The largest NB Bancorp buyer in Q3 2025 was UBS Group, an estimated $5.04M added.
  • The largest NB Bancorp seller in Q3 2025 was Deutsche Bank, an estimated $2.9M sold.

Based on aggregated 13F filings for Q3 2025.