BZAI Blaize Holdings, Inc.

NASDAQ
$0.58

Blaize Holdings, Inc. (BZAI) Institutional Ownership

What the institutions did with BZAI last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
139
filed both this quarter and last
Managers holding
120
+13 on the quarter
Buyers
85
32 opened new
Sellers
41
19 sold out entirely
Buyer share
67.5%
of managers who traded it
Breadth
+34.9
net buyers, as a share of those trading

Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
BlackRock, Inc. 7.4M 19.5%
VANGUARD CAPITAL MANAGEMENT LLC 4.7M 12.3%
GEODE CAPITAL MANAGEMENT, LLC 2.1M 5.6%
LAZARD ASSET MANAGEMENT LLC 2.0M 5.2%
UBS Group AG 1.8M 4.8%
MARSHALL WACE, LLP 1.6M 4.2%
STATE STREET CORP 1.6M 4.1%
AQR CAPITAL MANAGEMENT LLC 1.5M 4.0%
CITADEL ADVISORS LLC 1.2M 3.3%
Nuveen, LLC 954.6K 2.5%
MORGAN STANLEY 940.8K 2.5%
CANTOR FITZGERALD, L. P. 919.4K 2.4%
Temasek Holdings (Private) Ltd 857.2K 2.3%
MILLENNIUM MANAGEMENT LLC 817.9K 2.2%
NORTHERN TRUST CORP 773.4K 2.0%
Themes Management Co LLC 762.2K 2.0%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 720.6K 1.9%
VANGUARD PORTFOLIO MANAGEMENT LLC 590.9K 1.6%
VANGUARD FIDUCIARY TRUST CO 581.3K 1.5%
AlphaCore Capital LLC 570.4K 1.5%
XTX Topco Ltd 474.8K 1.3%
EFG International AG 430.6K 1.1%
GOLDMAN SACHS GROUP INC 371.7K 1.0%
D. E. Shaw & Co., Inc. 279.9K 0.7%
IEQ CAPITAL, LLC 237.9K 0.6%

Largest changes

Manager Action Previous Current Change
BlackRock, Inc. Increased 5.6M 7.4M +1.7M
Temasek Holdings (Private) Ltd Reduced 2.6M 857.2K -1.7M
MARSHALL WACE, LLP New 0 1.6M +1.6M
RENAISSANCE TECHNOLOGIES LLC Sold Out 1.4M 0 -1.4M
CITADEL ADVISORS LLC Increased 77.0K 1.2M +1.2M
VANGUARD CAPITAL MANAGEMENT LLC Increased 3.6M 4.7M +1.1M
Nuveen, LLC Increased 115.7K 954.6K +838.9K
MILLENNIUM MANAGEMENT LLC New 0 817.9K +817.9K
LAZARD ASSET MANAGEMENT LLC Increased 1.2M 2.0M +782.6K
XTX Topco Ltd Increased 22.9K 474.8K +451.9K
EFG International AG New 0 430.6K +430.6K
GEODE CAPITAL MANAGEMENT, LLC Increased 1.8M 2.1M +362.3K
AQR CAPITAL MANAGEMENT LLC Increased 1.2M 1.5M +289.6K
D. E. Shaw & Co., Inc. New 0 279.9K +279.9K
UBS Group AG Increased 1.5M 1.8M +265.5K
STATE STREET CORP Increased 1.4M 1.6M +192.9K
VANGUARD FIDUCIARY TRUST CO Increased 410.5K 581.3K +170.7K
HRT FINANCIAL LP Sold Out 163.5K 0 -163.5K
CANTOR FITZGERALD, L. P. Increased 769.2K 919.4K +150.2K
LMR Partners LLP New 0 146.5K +146.5K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Increased 585.4K 720.6K +135.2K
AlphaCore Capital LLC Increased 440.3K 570.4K +130.0K
NORTHERN TRUST CORP Increased 657.7K 773.4K +115.7K
Balyasny Asset Management L.P. Sold Out 109.5K 0 -109.5K
Mariner, LLC Sold Out 107.6K 0 -107.6K
IMC-Chicago, LLC New 0 107.1K +107.1K
ALLIANCEBERNSTEIN L.P. New 0 100.6K +100.6K
Vontobel Holding Ltd. Reduced 162.4K 62.4K -100.0K
GOLDMAN SACHS GROUP INC Increased 271.9K 371.7K +99.9K
IEQ CAPITAL, LLC Increased 145.6K 237.9K +92.3K
JANE STREET GROUP, LLC Sold Out 89.7K 0 -89.7K
Themes Management Co LLC Reduced 841.0K 762.2K -78.8K
VANGUARD PORTFOLIO MANAGEMENT LLC Increased 514.6K 590.9K +76.3K
Orion Porfolio Solutions, LLC New 0 75.9K +75.9K
STEEL GROVE CAPITAL ADVISORS, LLC Increased 25.0K 100.0K +75.0K
PCM Encore, LLC Sold Out 74.1K 0 -74.1K
JPMORGAN CHASE & CO Reduced 116.0K 46.4K -69.6K
ProShare Advisors LLC Increased 78.5K 146.5K +67.9K
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced 262.8K 207.4K -55.4K
Gryphon Financial Partners LLC Sold Out 50.0K 0 -50.0K
LPL Financial LLC New 0 46.2K +46.2K
WELLS FARGO & COMPANY/MN Increased 32.4K 78.5K +46.1K
Meridian Wealth Management, LLC New 0 45.6K +45.6K
Russell Investments Group, Ltd. Increased 9.2K 49.4K +40.3K
LOS ANGELES CAPITAL MANAGEMENT LLC Reduced 142.5K 105.0K -37.5K
Caitong International Asset Management Co., Ltd Reduced 93.6K 56.9K -36.7K
State of Wyoming New 0 36.3K +36.3K
FRANKLIN RESOURCES INC Increased 62.5K 98.3K +35.7K
Spark Investment Management LLC New 0 30.4K +30.4K
STIFEL FINANCIAL CORP New 0 30.0K +30.0K
Worth Venture Partners, LLC Sold Out 28.6K 0 -28.6K
MORGAN STANLEY Increased 912.8K 940.8K +28.0K
MANUFACTURERS LIFE INSURANCE COMPANY, THE Sold Out 25.6K 0 -25.6K
Arax Advisory Partners Increased 1.2K 25.5K +24.3K
PRICE T ROWE ASSOCIATES INC /MD/ Increased 39.2K 63.1K +23.9K
BANK OF AMERICA CORP /DE/ Reduced 93.8K 72.6K -21.2K
OSAIC HOLDINGS, INC. Increased 1.0K 21.7K +20.7K
Corient Private Wealth LP New 0 20.0K +20.0K
COMMONWEALTH EQUITY SERVICES, LLC Sold Out 19.3K 0 -19.3K
D.A. DAVIDSON & CO. Increased 16.5K 35.3K +18.8K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.