SIEB Siebert Financial Corp.
Siebert Financial Corp. (SIEB) Institutional Ownership
What the institutions did with SIEB 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.
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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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.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| CANTOR FITZGERALD, L. P. | 1.0M | 35.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 549.7K | 19.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 253.9K | 8.8% |
| Cetera Investment Advisers | 147.0K | 5.1% |
| MILLENNIUM MANAGEMENT LLC | 121.2K | 4.2% |
| VANGUARD FIDUCIARY TRUST CO | 107.6K | 3.7% |
| BlackRock, Inc. | 101.9K | 3.5% |
| GOLDMAN SACHS GROUP INC | 56.2K | 1.9% |
| JANE STREET GROUP, LLC | 55.8K | 1.9% |
| STATE STREET CORP | 50.7K | 1.7% |
| CITADEL ADVISORS LLC | 48.9K | 1.7% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 48.3K | 1.7% |
| NORTHERN TRUST CORP | 42.3K | 1.5% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 35.3K | 1.2% |
| DIMENSIONAL FUND ADVISORS LP | 26.3K | 0.9% |
| AQR CAPITAL MANAGEMENT LLC | 25.3K | 0.9% |
| UBS Group AG | 22.3K | 0.8% |
| MORGAN STANLEY | 22.1K | 0.8% |
| Williams & Novak, LLC | 21.9K | 0.8% |
| Qube Research & Technologies Ltd | 21.3K | 0.7% |
| RENAISSANCE TECHNOLOGIES LLC | 21.0K | 0.7% |
| XTX Topco Ltd | 17.8K | 0.6% |
| AMERICAN CENTURY COMPANIES INC | 11.5K | 0.4% |
| Point72 Asset Management, L.P. | 11.4K | 0.4% |
| Vanguard Global Advisers, LLC | 9.4K | 0.3% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| CANTOR FITZGERALD, L. P. | New | 0 | 1.0M | +1.0M |
| BlackRock, Inc. | Reduced | 779.6K | 101.9K | -677.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 435.5K | 253.9K | -181.7K |
| UBS Group AG | Reduced | 160.6K | 22.3K | -138.3K |
| MILLENNIUM MANAGEMENT LLC | New | 0 | 121.2K | +121.2K |
| NORTHERN TRUST CORP | Reduced | 138.6K | 42.3K | -96.3K |
| STATE STREET CORP | Reduced | 144.2K | 50.7K | -93.6K |
| STRS OHIO | Sold Out | 84.2K | 0 | -84.2K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Sold Out | 80.7K | 0 | -80.7K |
| JANE STREET GROUP, LLC | New | 0 | 55.8K | +55.8K |
| Focus Partners Wealth | Sold Out | 36.5K | 0 | -36.5K |
| Bank of New York Mellon Corp | Sold Out | 35.7K | 0 | -35.7K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Sold Out | 35.2K | 0 | -35.2K |
| DEUTSCHE BANK AG\ | Sold Out | 32.8K | 0 | -32.8K |
| PANAGORA ASSET MANAGEMENT INC | Sold Out | 32.8K | 0 | -32.8K |
| AQR CAPITAL MANAGEMENT LLC | New | 0 | 25.3K | +25.3K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Reduced | 57.3K | 35.3K | -22.0K |
| NEW YORK STATE COMMON RETIREMENT FUND | Sold Out | 21.6K | 0 | -21.6K |
| CITADEL ADVISORS LLC | Increased | 27.3K | 48.9K | +21.6K |
| Qube Research & Technologies Ltd | New | 0 | 21.3K | +21.3K |
| GOLDMAN SACHS GROUP INC | Increased | 36.1K | 56.2K | +20.1K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 28.7K | 48.3K | +19.6K |
| Nuveen, LLC | Sold Out | 18.3K | 0 | -18.3K |
| XTX Topco Ltd | New | 0 | 17.8K | +17.8K |
| MORGAN STANLEY | Increased | 8.2K | 22.1K | +13.9K |
| BANK OF AMERICA CORP /DE/ | Sold Out | 12.2K | 0 | -12.2K |
| Point72 Asset Management, L.P. | New | 0 | 11.4K | +11.4K |
| RHUMBLINE ADVISERS | Reduced | 17.8K | 7.4K | -10.4K |
| Police & Firemen's Retirement System of New Jersey | Sold Out | 8.5K | 0 | -8.5K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 34.8K | 26.3K | -8.5K |
| Russell Investments Group, Ltd. | Increased | 1.2K | 8.9K | +7.7K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | Sold Out | 6.8K | 0 | -6.8K |
| Tower Research Capital LLC (TRC) | Reduced | 7.8K | 1.1K | -6.8K |
| Williams & Novak, LLC | Increased | 15.8K | 21.9K | +6.1K |
| JPMORGAN CHASE & CO | Reduced | 6.2K | 482 | -5.8K |
| WELLS FARGO & COMPANY/MN | Reduced | 5.3K | 10 | -5.3K |
| VANGUARD FIDUCIARY TRUST CO | Reduced | 112.9K | 107.6K | -5.3K |
| FMR LLC | Reduced | 4.5K | 190 | -4.3K |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 3.1K | 101 | -3.0K |
| OSAIC HOLDINGS, INC. | Reduced | 10.9K | 8.1K | -2.8K |
| BARCLAYS PLC | Reduced | 3.0K | 654 | -2.4K |
| ROYAL BANK OF CANADA | Increased | 4.8K | 6.7K | +2.0K |
| AMERICAN CENTURY COMPANIES INC | Reduced | 13.1K | 11.5K | -1.5K |
| Ameritas Investment Partners, Inc. | Sold Out | 1.4K | 0 | -1.4K |
| Legal & General Group Plc | Sold Out | 1.3K | 0 | -1.3K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 550.6K | 549.7K | -899 |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 21.8K | 21.0K | -800 |
| Arax Advisory Partners | New | 0 | 576 | +576 |
| Cetera Investment Advisers | Increased | 146.5K | 147.0K | +531 |
| Sterling Capital Management LLC | Sold Out | 430 | 0 | -430 |
| CITIGROUP INC | Reduced | 665 | 400 | -265 |
| Essential Partners LLC | Reduced | 137 | 41 | -96 |
| Integrated Wealth Concepts LLC | New | 0 | 70 | +70 |
| EverSource Wealth Advisors, LLC | Increased | 28 | 73 | +45 |
| Allworth Financial LP | Increased | 27 | 57 | +30 |
| SIMPLEX TRADING, LLC | Sold Out | 25 | 0 | -25 |
| Farther Finance Advisors, LLC | Increased | 3 | 24 | +21 |
| ROTHSCHILD INVESTMENT LLC | Increased | 2 | 13 | +11 |
| Fortitude Family Office, LLC | New | 0 | 10 | +10 |
| PNC FINANCIAL SERVICES GROUP, INC. | Sold Out | 9 | 0 | -9 |
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.