Who Owns NBBK?

NB Bancorp, Inc. Common Stock — Institutional Ownership & 13F Holdings

$19.84

+0.02 (+0.10%)

Market Cap

$752.4M

Shares Outstanding

37,963,685

Institutional Holders

123

Total Inst. Value

$315.5M

% of Float Held

57.3%

QoQ Holder Change

+78

Institutional data as of Q1 2025

New Positions

29

Closed Positions

13

Increased

35

Decreased

36

Institutional Ownership Trend

Top 10 Institutional Holders(Q1 2025)

#FundValueShares
1BlackRock, Inc.$56.8M3,140,847
2VANGUARD GROUP INC$38.1M2,108,757
3Pertento Partners LLP$35.8M1,978,903
4WELLINGTON MANAGEMENT GROUP LLP$29.1M1,610,589
5STATE STREET CORP$19.5M1,080,102
6GEODE CAPITAL MANAGEMENT, LLC$16.3M901,664
7HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC$9.5M526,810
8GOLDMAN SACHS GROUP INC$8.5M471,423
9NORTHERN TRUST CORP$6.3M347,816
10BANK OF AMERICA CORP /DE/$5.5M303,720

Biggest Buyers & Sellers This Quarter

Top Buyers

FundShares AddedValue
VANGUARD GROUP INC+22K$38.1M
WELLINGTON MANAGEMENT GROUP LLP+117K$29.1M
STATE STREET CORP+56K$19.5M
GEODE CAPITAL MANAGEMENT, LLC+21K$16.3M
FMR LLC+44K$5.3M

Top Sellers

FundShares RemovedValue
BlackRock, Inc.-134K$56.8M
MORGAN STANLEY-93K$4.5M
GOLDMAN SACHS GROUP INC-42K$8.5M
JPMORGAN CHASE & CO-35K$3.8M
RHUMBLINE ADVISERS-27K$918K

Famous Fund Managers

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Frequently Asked Questions

How many institutional investors hold NBBK?

As of Q1 2025, 123 institutional investors report holding NBBK (NB Bancorp, Inc. Common Stock) in their 13F filings.

What percentage of NB Bancorp, Inc. Common Stock is owned by institutions?

Institutional investors hold approximately 57.3% of NB Bancorp, Inc. Common Stock's float as reported in SEC 13F filings.

Which hedge fund owns the most NBBK?

The largest institutional holder of NBBK is BlackRock, Inc. with $56.8M in shares.

Are institutions buying or selling NBBK?

This quarter, 29 institutions opened new positions in NBBK and 13 closed their positions.

What is 13F institutional ownership?

SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.

How often is institutional ownership data updated?

13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.