NB Bancorp, Inc. NBBK
CIK 0001979330 · CUSIP 63945M107
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock Inc. CIK 1364742 · View history | $46.92M 3,111,388 shares | 0.00% | +2.37M(+320.30%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 02 | Pertento Partners LLP CIK 1894571 · Amended · View history | $35.52M 2,355,743 shares | 4.50% | +1.02M(+76.30%)Added | SEC filing ↗ Nov 15, 2024 | ▾ |
| 03 | VANGUARD GROUP INC CIK 102909 · View history | $33.90M 2,247,742 shares | 0.00% | +266.92K(+13.50%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 04 | WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history | $18.14M 1,202,783 shares | 0.00% | +1.01M(+509.60%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 05 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $13.11M 868,973 shares | 0.00% | +482.80K(+125.00%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 06 | STATE STREET CORP CIK 93751 · View history | $12.87M 853,420 shares | 0.00% | +723.62K(+557.50%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 07 | ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history | $9.83M 652,025 shares | 0.00% | -165.14K(-20.20%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 08 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $7.55M 500,481 shares | 0.00% | +262.69K(+110.50%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 09 | Stieven Capital Advisors, L.P. CIK 1388279 · View history | $5.48M 363,631 shares | 1.21% | -5.10K(-1.40%)Reduced | SEC filing ↗ Aug 1, 2024 | ▾ |
| 10 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · Amended · View history | $4.70M 311,687 shares | 0.00% | +95.39K(+44.10%)Added | SEC filing ↗ Aug 12, 2024 | ▾ |
| 11 | EJF Capital LLC CIK 1353254 · View history | $4.07M 269,996 shares | 3.02% | -120.62K(-30.90%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 12 | PROSPECTOR PARTNERS LLC CIK 1080380 · View history | $3.65M 242,272 shares | 0.43% | +242.27KNew | SEC filing ↗ Aug 13, 2024 | ▾ |
| 13 | MORGAN STANLEY CIK 895421 · Amended · View history | $3.47M 229,881 shares | 0.00% | +151.92K(+194.90%)Added | SEC filing ↗ May 14, 2025 | ▾ |
| 14 | RAFFLES ASSOCIATES LP CIK 1169581 · View history | $3.36M 223,019 shares | 3.79% | +112.32K(+101.50%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 15 | GREAT OAK CAPITAL PARTNERS, LLC CIK 2012868 · View history | $3.24M 189,686 shares | 1.22% | -229.56K(-54.80%)Reduced | SEC filing ↗ Aug 13, 2024 | ▾ |
| 16 | BANK OF AMERICA CORP /DE/ CIK 70858 · View history | $3.00M 198,883 shares | 0.00% | +170.77K(+607.40%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 17 | ENDEAVOUR CAPITAL ADVISORS INC CIK 1218749 · View history | $2.74M 181,769 shares | 0.95% | +44.78K(+32.70%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 18 | DEUTSCHE BANK AG\ CIK 948046 · Amended · View history | $2.51M 166,696 shares | 0.00% | +166.70KNew | SEC filing ↗ Jun 12, 2025 | ▾ |
| 19 | HENNESSY ADVISORS INC CIK 1145255 · View history | $2.34M 155,000 shares | 0.09% | -35.00K(-18.40%)Reduced | SEC filing ↗ Jul 23, 2024 | ▾ |
| 20 | Bank of New York Mellon Corp CIK 1390777 · View history | $1.82M 120,688 shares | 0.00% | +120.69KNew | SEC filing ↗ Jul 25, 2024 | ▾ |
Showing 20 / 93 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 93 reporting institutions.
This page includes 20 of 93 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 93 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"63945M107","quarter":"2024Q2","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.