Skip to main content Skip to main content
Institutional Ownership · SEC Form 13F

Who owns BZAI (BZAI)


Which tracked institutional funds hold BZAI, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BZAI 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.

130
Institutional holders
37,354,069
Shares held (tracked funds)
30.6%
Of shares outstanding

How the tape is positioned

10 tracked funds added or opened BZAI while 8 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

BZAI’s largest tracked holder by dollar value, METEORA CAPITAL, LLC, sizes it at 4.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 4.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.

Book-share is each fund’s reported value in BZAI 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 127 tracked filers holding BZAI, 77 increased or opened the position and 45 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.

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 BZAI 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 5

  • VANGUARD CAPITAL MANAGEMENT LLC$7M
  • LAZARD ASSET MANAGEMENT LLC$2M
  • Themes Management Co LLC$2M
  • VANGUARD PORTFOLIO MANAGEMENT LLC$937K
  • VANGUARD FIDUCIARY TRUST CO$747K

Full exits 4

  • VANGUARD GROUP INC$8M
  • MILLENNIUM MANAGEMENT LLC$2M
  • MARSHALL WACE, LLP$2M
  • Polar Asset Management Partners Inc.$759K

Largest adds

  • RENAISSANCE TECHNOLOGIES LLC$2M
  • AQR CAPITAL MANAGEMENT LLC$2M
  • MORGAN STANLEY$884K
  • BlackRock, Inc.$702K
  • Vontobel Holding Ltd.$255K

Largest trims

  • Temasek Holdings (Private) Ltd$8M
  • Q Global Advisors, LLC$3M
  • CITADEL ADVISORS LLC$856K
  • JANE STREET GROUP, LLC$514K

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
Q Global Advisors, LLC150,000$57M6.8%2026-Q1
BlackRock, Inc. added5,644,826$10M1.2%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new3,584,327$7M0.8%2026-Q1
Temasek Holdings (Private) Ltd trimmed2,594,264$5M0.6%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added1,774,594$3M0.4%2026-Q1
UBS Group AG added1,542,474$3M0.3%2026-Q1
RENAISSANCE TECHNOLOGIES LLC added1,404,159$3M0.3%2026-Q1
STATE STREET CORP added1,379,508$3M0.3%2026-Q1
LAZARD ASSET MANAGEMENT LLC new1,204,204$2M0.3%2026-Q1
AQR CAPITAL MANAGEMENT LLC added1,150,890$2M0.3%2026-Q1
MORGAN STANLEY added912,776$2M0.2%2026-Q1
Themes Management Co LLC new841,000$2M0.2%2026-Q1
CANTOR FITZGERALD, L. P.769,231$1M0.2%2026-Q1
NORTHERN TRUST CORP added657,664$1M0.1%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added585,446$1M0.1%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new514,632$937K0.1%2026-Q1
AlphaCore Capital LLC added440,348$801K0.1%2026-Q1
VANGUARD FIDUCIARY TRUST CO new410,532$747K0.1%2026-Q1
GOLDMAN SACHS GROUP INC trimmed271,862$495K0.1%2026-Q1
SUSQUEHANNA INTERNATIONAL GROUP, LLP added262,837$478K0.1%2026-Q1
X-Square Capital, LLC200,000$364K0.0%2026-Q1
Calamos Advisors LLC1,000,000$350K0.0%2026-Q1
Caption Management, LLC898,556$341K0.0%2026-Q1
Saba Capital Management, L.P.874,225$332K0.0%2026-Q1
D. E. Shaw & Co., Inc.900,000$315K0.0%2026-Q1
NOTABLE CAPITAL MANAGEMENT, L.L.C.163,670$298K0.0%2026-Q1
HRT FINANCIAL LP added163,459$297K0.0%2026-Q1
Vontobel Holding Ltd. added162,372$296K0.0%2026-Q1
MMCAP International Inc. SPC750,000$285K0.0%2026-Q1
Bank of New York Mellon Corp added154,832$282K0.0%2026-Q1
IEQ CAPITAL, LLC new145,595$265K0.0%2026-Q1
LOS ANGELES CAPITAL MANAGEMENT LLC new142,466$259K0.0%2026-Q1
LMR Partners LLP615,000$234K0.0%2026-Q1
Nuveen, LLC added115,705$211K0.0%2026-Q1
Forum Financial Management, LP115,488$210K0.0%2026-Q1
ARISTEIA CAPITAL, L.L.C. added559,887$207K0.0%2026-Q1
BALYASNY ASSET MANAGEMENT L.P. new109,519$199K0.0%2026-Q1
Mariner, LLC added107,643$196K0.0%2026-Q1
BRIDGEWAY CAPITAL MANAGEMENT, LLC added102,500$187K0.0%2026-Q1
JPMORGAN CHASE & CO trimmed115,969$183K0.0%2026-Q1
BANK OF AMERICA CORP /DE/ added93,844$171K0.0%2026-Q1
Caitong International Asset Management Co., Ltd added93,617$170K0.0%2026-Q1
JANE STREET GROUP, LLC trimmed89,667$163K0.0%2026-Q1
Hudson Bay Capital Management LP trimmed455,788$160K0.0%2026-Q1
WOLVERINE ASSET MANAGEMENT LLC added405,376$154K0.0%2026-Q1
BRC Group Holdings, Inc.83,353$152K0.0%2026-Q1
ProShare Advisors LLC trimmed78,549$143K0.0%2026-Q1
CITADEL ADVISORS LLC trimmed76,983$140K0.0%2026-Q1
PCM Encore, LLC new74,058$135K0.0%2026-Q1
DEUTSCHE BANK AG\71,226$130K0.0%2026-Q1
CWM, LLC added70,379$128K0.0%2026-Q1
FRANKLIN RESOURCES INC62,540$114K0.0%2026-Q1
Platform Technology Partners59,333$108K0.0%2026-Q1
RHUMBLINE ADVISERS added55,429$101K0.0%2026-Q1
Gryphon Financial Partners LLC49,954$91K0.0%2026-Q1
Cerity Partners LLC new47,368$86K0.0%2026-Q1
Sculptor Capital LP trimmed222,710$82K0.0%2026-Q1
Cetera Investment Advisers added44,284$81K0.0%2026-Q1
WHITEBOX ADVISORS LLC209,250$80K0.0%2026-Q1
BARCLAYS PLC trimmed42,702$78K0.0%2026-Q1
Clear Street Group Inc.201,429$77K0.0%2026-Q1
Invesco Ltd. added41,152$75K0.0%2026-Q1
PRICE T ROWE ASSOCIATES INC /MD/39,200$72K0.0%2026-Q1
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC new39,257$70K0.0%2026-Q1
Vivaldi Capital Management LP37,439$68K0.0%2026-Q1
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added37,070$67K0.0%2026-Q1
WELLS FARGO & COMPANY/MN trimmed32,376$59K0.0%2026-Q1
Worth Venture Partners, LLC new28,600$52K0.0%2026-Q1
Creative Planning134,700$51K0.0%2026-Q1
Kera Capital Partners, Inc. added26,467$48K0.0%2026-Q1
Chicago Partners Investment Group LLC added21,919$47K0.0%2026-Q1
MANUFACTURERS LIFE INSURANCE COMPANY, THE added25,575$47K0.0%2026-Q1
STEEL GROVE CAPITAL ADVISORS, LLC new25,000$46K0.0%2026-Q1
MERCER GLOBAL ADVISORS INC /ADV new24,526$45K0.0%2026-Q1
INTECH INVESTMENT MANAGEMENT LLC trimmed24,402$44K0.0%2026-Q1
METEORA CAPITAL, LLC added793,489$493M59.1%2025-Q3 stale
Clear Street Derivatives LLC537,998$207M24.8%2025-Q2 stale
VANGUARD GROUP INC added3,893,026$8M0.9%2025-Q4 stale
BOOTHBAY FUND MANAGEMENT, LLC new343,594$4M0.5%2025-Q1 stale
MILLENNIUM MANAGEMENT LLC new967,607$2M0.2%2025-Q4 stale
MARSHALL WACE, LLP trimmed859,131$2M0.2%2025-Q4 stale
Harraden Circle Investments, LLC new523,424$1M0.1%2025-Q1 stale
RK Capital Management, LLC/FL new244,777$844K0.1%2025-Q3 stale
Polar Asset Management Partners Inc. added389,127$759K0.1%2025-Q4 stale
ATW SPAC MANAGEMENT LLC new343,594$694K0.1%2025-Q1 stale
Quarry LP trimmed51,148$669K0.1%2025-Q2 stale
RAYMOND JAMES FINANCIAL INC added221,281$431K0.1%2025-Q4 stale
AQR Arbitrage LLC new100,000$298K0.0%2025-Q2 stale
TWO SIGMA INVESTMENTS, LP added113,576$221K0.0%2025-Q4 stale
Quantbot Technologies LP added79,255$155K0.0%2025-Q4 stale
Atom Investors LP new74,172$145K0.0%2025-Q4 stale
Verition Fund Management LLC added74,035$144K0.0%2025-Q4 stale
HighTower Advisors, LLC39,963$138K0.0%2025-Q3 stale
OMERS ADMINISTRATION Corp new61,000$123K0.0%2025-Q1 stale
CLEAR STREET LLC added291,429$112K0.0%2025-Q2 stale
ExodusPoint Capital Management, LP new46,536$91K0.0%2025-Q4 stale
Aristides Capital LLC new43,855$86K0.0%2025-Q4 stale
GROUP ONE TRADING LLC new38,596$75K0.0%2025-Q4 stale
Virtu Financial LLC added33,641$66K0.0%2025-Q4 stale
SkyView Investment Advisors, LLC100,000$62K0.0%2025-Q3 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