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Institutional Ownership · SEC Form 13F

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.

176
Institutional holders
23,078,307
Shares held (tracked funds)
50.4%
Of shares outstanding

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).

FundSharesReported value% of valueQuarter
BlackRock, Inc. trimmed3,084,222$65M12.2%2026-Q1
Pertento Partners LLP trimmed2,206,666$46M8.7%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new1,703,928$36M6.8%2026-Q1
AltraVue Capital, LLC added1,304,080$27M5.2%2026-Q1
STATE STREET CORP added1,293,538$27M5.1%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added1,098,930$23M4.4%2026-Q1
WELLINGTON MANAGEMENT GROUP LLP trimmed710,000$15M2.8%2026-Q1
GOLDMAN SACHS GROUP INC added691,668$15M2.7%2026-Q1
Tieton Capital Management, LLC added553,570$12M2.2%2026-Q1
DIMENSIONAL FUND ADVISORS LP added522,384$11M2.1%2026-Q1
Nuveen, LLC added488,033$10M1.9%2026-Q1
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC trimmed450,772$9M1.8%2026-Q1
FMR LLC added436,591$9M1.7%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new386,132$8M1.5%2026-Q1
TWO SIGMA INVESTMENTS, LP added371,807$8M1.5%2026-Q1
NORTHERN TRUST CORP added335,360$7M1.3%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed318,365$7M1.3%2026-Q1
SEI INVESTMENTS CO added302,181$6M1.2%2026-Q1
MORGAN STANLEY added279,870$6M1.1%2026-Q1
Legato Capital Management LLC added276,070$6M1.1%2026-Q1
RENAISSANCE TECHNOLOGIES LLC added263,906$6M1.0%2026-Q1
AMERICAN CENTURY COMPANIES INC added263,656$6M1.0%2026-Q1
NEW YORK STATE COMMON RETIREMENT FUND added260,585$5M1.0%2026-Q1
VANGUARD FIDUCIARY TRUST CO new254,038$5M1.0%2026-Q1
BRIDGEWAY CAPITAL MANAGEMENT, LLC added208,394$4M0.8%2026-Q1
HENNESSY ADVISORS INC trimmed180,000$4M0.7%2026-Q1
Qube Research & Technologies Ltd added175,066$4M0.7%2026-Q1
Empowered Funds, LLC added168,394$4M0.7%2026-Q1
MILLENNIUM MANAGEMENT LLC added158,243$3M0.6%2026-Q1
PANAGORA ASSET MANAGEMENT INC trimmed150,096$3M0.6%2026-Q1
Bank of New York Mellon Corp trimmed148,066$3M0.6%2026-Q1
FIRST TRUST ADVISORS LP trimmed140,264$3M0.6%2026-Q1
INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC added131,013$3M0.5%2026-Q1
AQR CAPITAL MANAGEMENT LLC added125,857$3M0.5%2026-Q1
Financial Engines Advisors L.L.C. added125,723$3M0.5%2026-Q1
ALLIANCEBERNSTEIN L.P. trimmed130,219$3M0.5%2026-Q1
BANK OF AMERICA CORP /DE/ added118,801$3M0.5%2026-Q1
CITADEL ADVISORS LLC added116,371$2M0.5%2026-Q1
MANGROVE PARTNERS IM, LLC111,356$2M0.4%2026-Q1
Invesco Ltd. added101,244$2M0.4%2026-Q1
Focus Partners Wealth added92,809$2M0.4%2026-Q1
Oppenheimer & Close, LLC82,999$2M0.3%2026-Q1
Swiss National Bank77,100$2M0.3%2026-Q1
UBS Group AG trimmed76,120$2M0.3%2026-Q1
Creative Planning added70,906$1M0.3%2026-Q1
D. E. Shaw & Co., Inc. added70,385$1M0.3%2026-Q1
CREDIT AGRICOLE S A new70,000$1M0.3%2026-Q1
OP Asset Management Ltd new58,392$1M0.3%2026-Q1
Round Rock Advisors LLC added66,467$1M0.3%2026-Q1
STILWELL VALUE LLC65,000$1M0.3%2026-Q1
JANE STREET GROUP, LLC trimmed60,669$1M0.2%2026-Q1
LAZARD ASSET MANAGEMENT LLC added57,302$1M0.2%2026-Q1
PRINCIPAL FINANCIAL GROUP INC trimmed55,364$1M0.2%2026-Q1
LYNCH & ASSOCIATES/IN trimmed53,334$1M0.2%2026-Q1
RHUMBLINE ADVISERS added53,175$1M0.2%2026-Q1
Legal & General Group Plc trimmed53,008$1M0.2%2026-Q1
BNP PARIBAS FINANCIAL MARKETS trimmed53,005$1M0.2%2026-Q1
SUSQUEHANNA INTERNATIONAL GROUP, LLP added51,593$1M0.2%2026-Q1
MACKENZIE FINANCIAL CORP new50,897$1M0.2%2026-Q1
Mariner, LLC added49,495$1M0.2%2026-Q1
NIXON PEABODY TRUST CO48,516$1M0.2%2026-Q1
Integrated Wealth Concepts LLC added47,927$1M0.2%2026-Q1
WEDGE CAPITAL MANAGEMENT L L P/NC new42,356$892K0.2%2026-Q1
AMERIPRISE FINANCIAL INC trimmed41,959$884K0.2%2026-Q1
EJF Capital LP trimmed41,457$873K0.2%2026-Q1
PRICE T ROWE ASSOCIATES INC /MD/ added41,072$866K0.2%2026-Q1
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added40,276$849K0.2%2026-Q1
XTX Topco Ltd trimmed39,782$838K0.2%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added39,362$829K0.2%2026-Q1
Aviance Capital Partners, LLC37,167$783K0.1%2026-Q1
Integrated Quantitative Investments LLC trimmed37,075$781K0.1%2026-Q1
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed35,797$754K0.1%2026-Q1
JPMORGAN CHASE & CO trimmed36,088$746K0.1%2026-Q1
FEDERATED HERMES, INC. trimmed33,899$714K0.1%2026-Q1
CITIGROUP INC added33,451$705K0.1%2026-Q1
Connor, Clark & Lunn Investment Management Ltd. added32,249$679K0.1%2026-Q1
DEUTSCHE BANK AG\ added31,106$655K0.1%2026-Q1
Rafferty Asset Management, LLC added29,998$632K0.1%2026-Q1
Allspring Global Investments Holdings, LLC new29,474$626K0.1%2026-Q1
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC trimmed27,840$587K0.1%2026-Q1
FRANKLIN RESOURCES INC new27,270$575K0.1%2026-Q1
LPL Financial LLC added26,360$555K0.1%2026-Q1
Quantinno Capital Management LP added25,941$547K0.1%2026-Q1
LOS ANGELES CAPITAL MANAGEMENT LLC trimmed25,375$535K0.1%2026-Q1
Susquehanna Portfolio Strategies, LLC25,370$535K0.1%2026-Q1
VANGUARD GROUP INC added2,006,227$40M7.5%2025-Q4 stale
MARSHALL WACE, LLP trimmed251,512$5M0.9%2025-Q4 stale
ENDEAVOUR CAPITAL ADVISORS INC added164,179$3M0.6%2025-Q1 stale
TWO SIGMA ADVISERS, LP added140,001$3M0.5%2025-Q4 stale
PROSPECTOR PARTNERS LLC trimmed150,862$3M0.5%2025-Q3 stale
Cubist Systematic Strategies, LLC added85,522$2M0.3%2025-Q3 stale
Trexquant Investment LP added73,724$1M0.2%2025-Q3 stale
FARLEY CAPITAL L.P.54,586$975K0.2%2025-Q2 stale
VICTORY CAPITAL MANAGEMENT INC trimmed51,670$912K0.2%2025-Q3 stale
SummerHaven Investment Management, LLC added50,826$908K0.2%2025-Q2 stale
Verition Fund Management LLC added38,264$758K0.1%2025-Q4 stale
JACOBS LEVY EQUITY MANAGEMENT, INC trimmed41,766$737K0.1%2025-Q3 stale
PIPER SANDLER & CO. new40,000$716K0.1%2025-Q1 stale
OCCUDO QUANTITATIVE STRATEGIES LP added32,155$637K0.1%2025-Q4 stale
Brandywine Global Investment Management, LLC new27,470$544K0.1%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.

HoldersTotal shares

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.

Learn how to read institutional ownership