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Round Rock Advisors LLC

Position in NBBK — NB Bancorp, Inc.

CIK 1846991 WILTON, CT

Position in NBBK

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$1,400,459
+$371,683 QoQ
Shares Held
66,467
+28.1% QoQ
Ownership
0.149%
of shares outstanding
% of Portfolio
0.50%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2025
3 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in NBBK Over Time

Shares Held

Position Value (USD)

Position in Banks - Regional

Financial Services · as of Mar 31, 2026

Round Rock Advisors LLC holds $4,923,246 across 6 Banks - Regional names. NBBK ranks #1 (28.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 NBBK
NB Bancorp, Inc.
This page
66,467 $1,400,459

All Filings in NBBK

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3 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $1,400,459 66,467
2025-12-31 $1,028,776 51,906
2025-09-30 $599,570 33,970