Who owns NBBK (NBBK)
Which tracked institutional funds hold NBBK, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NBBK company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
46 tracked funds added or opened NBBK while 19 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
NBBK’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes NBBK more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in NBBK divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 176 tracked filers holding NBBK, 97 increased or opened the position and 64 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in NBBK between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 11
- VANGUARD CAPITAL MANAGEMENT LLC$36M
- VANGUARD PORTFOLIO MANAGEMENT LLC$8M
- VANGUARD FIDUCIARY TRUST CO$5M
- CREDIT AGRICOLE S A$1M
- OP Asset Management Ltd$1M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$1M
Full exits 7
- VANGUARD GROUP INC$40M
- MARSHALL WACE, LLP$5M
- TWO SIGMA ADVISERS, LP$3M
- Verition Fund Management LLC$758K
- OCCUDO QUANTITATIVE STRATEGIES LP$637K
- Brandywine Global Investment Management, LLC$544K
Largest adds
- AltraVue Capital, LLC$14M
- DIMENSIONAL FUND ADVISORS LP$5M
- STATE STREET CORP$5M
- GEODE CAPITAL MANAGEMENT, LLC$4M
- SEI INVESTMENTS CO$4M
- BlackRock, Inc.$3M
Largest trims
- WELLINGTON MANAGEMENT GROUP LLP$14M
- HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC$4M
- EJF Capital LP$3M
- ALLIANCEBERNSTEIN L.P.$2M
- UBS Group AG$1M
- LOS ANGELES CAPITAL MANAGEMENT LLC$1M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 3,084,222 | $65M | 12.2% | 2026-Q1 |
| Pertento Partners LLP trimmed | 2,206,666 | $46M | 8.7% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,703,928 | $36M | 6.8% | 2026-Q1 |
| AltraVue Capital, LLC added | 1,304,080 | $27M | 5.2% | 2026-Q1 |
| STATE STREET CORP added | 1,293,538 | $27M | 5.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,098,930 | $23M | 4.4% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 710,000 | $15M | 2.8% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 691,668 | $15M | 2.7% | 2026-Q1 |
| Tieton Capital Management, LLC added | 553,570 | $12M | 2.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 522,384 | $11M | 2.1% | 2026-Q1 |
| Nuveen, LLC added | 488,033 | $10M | 1.9% | 2026-Q1 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC trimmed | 450,772 | $9M | 1.8% | 2026-Q1 |
| FMR LLC added | 436,591 | $9M | 1.7% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 386,132 | $8M | 1.5% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 371,807 | $8M | 1.5% | 2026-Q1 |
| NORTHERN TRUST CORP added | 335,360 | $7M | 1.3% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 318,365 | $7M | 1.3% | 2026-Q1 |
| SEI INVESTMENTS CO added | 302,181 | $6M | 1.2% | 2026-Q1 |
| MORGAN STANLEY added | 279,870 | $6M | 1.1% | 2026-Q1 |
| Legato Capital Management LLC added | 276,070 | $6M | 1.1% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 263,906 | $6M | 1.0% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 263,656 | $6M | 1.0% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 260,585 | $5M | 1.0% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 254,038 | $5M | 1.0% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 208,394 | $4M | 0.8% | 2026-Q1 |
| HENNESSY ADVISORS INC trimmed | 180,000 | $4M | 0.7% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 175,066 | $4M | 0.7% | 2026-Q1 |
| Empowered Funds, LLC added | 168,394 | $4M | 0.7% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 158,243 | $3M | 0.6% | 2026-Q1 |
| PANAGORA ASSET MANAGEMENT INC trimmed | 150,096 | $3M | 0.6% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 148,066 | $3M | 0.6% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 140,264 | $3M | 0.6% | 2026-Q1 |
| INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC added | 131,013 | $3M | 0.5% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 125,857 | $3M | 0.5% | 2026-Q1 |
| Financial Engines Advisors L.L.C. added | 125,723 | $3M | 0.5% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 130,219 | $3M | 0.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 118,801 | $3M | 0.5% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 116,371 | $2M | 0.5% | 2026-Q1 |
| MANGROVE PARTNERS IM, LLC | 111,356 | $2M | 0.4% | 2026-Q1 |
| Invesco Ltd. added | 101,244 | $2M | 0.4% | 2026-Q1 |
| Focus Partners Wealth added | 92,809 | $2M | 0.4% | 2026-Q1 |
| Oppenheimer & Close, LLC | 82,999 | $2M | 0.3% | 2026-Q1 |
| Swiss National Bank | 77,100 | $2M | 0.3% | 2026-Q1 |
| UBS Group AG trimmed | 76,120 | $2M | 0.3% | 2026-Q1 |
| Creative Planning added | 70,906 | $1M | 0.3% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 70,385 | $1M | 0.3% | 2026-Q1 |
| CREDIT AGRICOLE S A new | 70,000 | $1M | 0.3% | 2026-Q1 |
| OP Asset Management Ltd new | 58,392 | $1M | 0.3% | 2026-Q1 |
| Round Rock Advisors LLC added | 66,467 | $1M | 0.3% | 2026-Q1 |
| STILWELL VALUE LLC | 65,000 | $1M | 0.3% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 60,669 | $1M | 0.2% | 2026-Q1 |
| LAZARD ASSET MANAGEMENT LLC added | 57,302 | $1M | 0.2% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 55,364 | $1M | 0.2% | 2026-Q1 |
| LYNCH & ASSOCIATES/IN trimmed | 53,334 | $1M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 53,175 | $1M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 53,008 | $1M | 0.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 53,005 | $1M | 0.2% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 51,593 | $1M | 0.2% | 2026-Q1 |
| MACKENZIE FINANCIAL CORP new | 50,897 | $1M | 0.2% | 2026-Q1 |
| Mariner, LLC added | 49,495 | $1M | 0.2% | 2026-Q1 |
| NIXON PEABODY TRUST CO | 48,516 | $1M | 0.2% | 2026-Q1 |
| Integrated Wealth Concepts LLC added | 47,927 | $1M | 0.2% | 2026-Q1 |
| WEDGE CAPITAL MANAGEMENT L L P/NC new | 42,356 | $892K | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 41,959 | $884K | 0.2% | 2026-Q1 |
| EJF Capital LP trimmed | 41,457 | $873K | 0.2% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 41,072 | $866K | 0.2% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 40,276 | $849K | 0.2% | 2026-Q1 |
| XTX Topco Ltd trimmed | 39,782 | $838K | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 39,362 | $829K | 0.2% | 2026-Q1 |
| Aviance Capital Partners, LLC | 37,167 | $783K | 0.1% | 2026-Q1 |
| Integrated Quantitative Investments LLC trimmed | 37,075 | $781K | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 35,797 | $754K | 0.1% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 36,088 | $746K | 0.1% | 2026-Q1 |
| FEDERATED HERMES, INC. trimmed | 33,899 | $714K | 0.1% | 2026-Q1 |
| CITIGROUP INC added | 33,451 | $705K | 0.1% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 32,249 | $679K | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 31,106 | $655K | 0.1% | 2026-Q1 |
| Rafferty Asset Management, LLC added | 29,998 | $632K | 0.1% | 2026-Q1 |
| Allspring Global Investments Holdings, LLC new | 29,474 | $626K | 0.1% | 2026-Q1 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC trimmed | 27,840 | $587K | 0.1% | 2026-Q1 |
| FRANKLIN RESOURCES INC new | 27,270 | $575K | 0.1% | 2026-Q1 |
| LPL Financial LLC added | 26,360 | $555K | 0.1% | 2026-Q1 |
| Quantinno Capital Management LP added | 25,941 | $547K | 0.1% | 2026-Q1 |
| LOS ANGELES CAPITAL MANAGEMENT LLC trimmed | 25,375 | $535K | 0.1% | 2026-Q1 |
| Susquehanna Portfolio Strategies, LLC | 25,370 | $535K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 2,006,227 | $40M | 7.5% | 2025-Q4 stale |
| MARSHALL WACE, LLP trimmed | 251,512 | $5M | 0.9% | 2025-Q4 stale |
| ENDEAVOUR CAPITAL ADVISORS INC added | 164,179 | $3M | 0.6% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP added | 140,001 | $3M | 0.5% | 2025-Q4 stale |
| PROSPECTOR PARTNERS LLC trimmed | 150,862 | $3M | 0.5% | 2025-Q3 stale |
| Cubist Systematic Strategies, LLC added | 85,522 | $2M | 0.3% | 2025-Q3 stale |
| Trexquant Investment LP added | 73,724 | $1M | 0.2% | 2025-Q3 stale |
| FARLEY CAPITAL L.P. | 54,586 | $975K | 0.2% | 2025-Q2 stale |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 51,670 | $912K | 0.2% | 2025-Q3 stale |
| SummerHaven Investment Management, LLC added | 50,826 | $908K | 0.2% | 2025-Q2 stale |
| Verition Fund Management LLC added | 38,264 | $758K | 0.1% | 2025-Q4 stale |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 41,766 | $737K | 0.1% | 2025-Q3 stale |
| PIPER SANDLER & CO. new | 40,000 | $716K | 0.1% | 2025-Q1 stale |
| OCCUDO QUANTITATIVE STRATEGIES LP added | 32,155 | $637K | 0.1% | 2025-Q4 stale |
| Brandywine Global Investment Management, LLC new | 27,470 | $544K | 0.1% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.