# NB BANCORP INC COM

NB BANCORP INC COM is a security (CUSIP 63945M107) tracked across SEC portfolio filings. 172 institutional managers reported $468.0M on Form 13F as of 2026-06-30; 10 registered fund positions totaling $16.5M via N-PORT as of 2026-05-31.

## Summary

- Issuer: NB BANCORP INC
- Class: COM
- CUSIP: 63945M107
- Asset category: EC
- 13F holders: 172
- 13F value: $468.0M
- 13F period: 2026-06-30
- N-PORT fund positions: 10
- N-PORT value: $16.5M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 172 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $65.0M | 3,084,222 |
| [Pertento Partners LLP](https://search.stillhousedata.com/firm/317498) | LONDON, X0 | $46.5M | 2,206,666 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $45.6M | 2,301,034 |
| [AltraVue Capital, LLC](https://search.stillhousedata.com/firm/283260) | BELLEVUE, WA | $27.5M | 1,304,080 |
| STATE STREET CORP | BOSTON, MA | $27.3M | 1,293,538 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $23.2M | 1,098,930 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $15.0M | 710,000 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $14.6M | 691,668 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $11.0M | 522,384 |
| Nuveen, LLC | CHARLOTTE, NC | $10.3M | 488,033 |
| [HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/114649) | Los Angeles, CA | $9.5M | 450,772 |
| FMR LLC | BOSTON, MA | $9.2M | 437,725 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $7.8M | 371,807 |
| NEW YORK STATE COMMON RETIREMENT FUND | ALBANY, NY | $7.3M | 346,155 |
| NORTHERN TRUST CORP | CHICAGO, IL | $7.1M | 335,360 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $9.1M | 1.12% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $4.1M | 2.34% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $1.4M | 2.90% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $831K | 1.11% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $482K | 0.08% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $416K | 0.14% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $118K | 2.80% |
| [TIAA Separate Account VA-1 - Stock Index Account](https://search.stillhousedata.com/fund/S000005098) | TIAA Separate Account VA-1 | $27K | 0.21% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $8K | 0.02% |
| [Longview Advantage ETF](https://search.stillhousedata.com/fund/S000086399) | RBB Fund Trust | $481 | 0.01% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/63945m107.md)
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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.