SST System1 Inc
System1 Inc (SST) Institutional Ownership
What the institutions did with SST 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 |
|---|---|---|
| BANK OF AMERICA CORP /DE/ | 161.5K | 27.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 127.6K | 21.3% |
| Cerity Partners LLC | 116.8K | 19.5% |
| Crescent Grove Advisors, LLC | 75.5K | 12.6% |
| BlackRock, Inc. | 43.4K | 7.3% |
| MORGAN STANLEY | 13.1K | 2.2% |
| GEODE CAPITAL MANAGEMENT, LLC | 12.5K | 2.1% |
| Leonteq Securities AG | 12.5K | 2.1% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 11.7K | 2.0% |
| STATE STREET CORP | 11.5K | 1.9% |
| VANGUARD FIDUCIARY TRUST CO | 9.1K | 1.5% |
| ROYAL BANK OF CANADA | 1.3K | 0.2% |
| UBS Group AG | 618 | 0.1% |
| JONES FINANCIAL COMPANIES LLLP | 366 | 0.1% |
| BNP PARIBAS FINANCIAL MARKETS | 86 | 0.0% |
| SBI Securities Co., Ltd. | 60 | 0.0% |
| JPMORGAN CHASE & CO | 42 | 0.0% |
| OSAIC HOLDINGS, INC. | 35 | 0.0% |
| GROUP ONE TRADING LLC | 33 | 0.0% |
| BARCLAYS PLC | 9 | 0.0% |
| SIGNATUREFD, LLC | 1 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Cannae Holdings, Inc. | Sold Out | 356.8K | 0 | -356.8K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 37.1K | 127.6K | +90.4K |
| Crescent Grove Advisors, LLC | New | 0 | 75.5K | +75.5K |
| MILLENNIUM MANAGEMENT LLC | Sold Out | 32.6K | 0 | -32.6K |
| BlackRock, Inc. | Increased | 24.2K | 43.4K | +19.1K |
| NINE MASTS CAPITAL Ltd | Sold Out | 18.5K | 0 | -18.5K |
| RENAISSANCE TECHNOLOGIES LLC | Sold Out | 18.3K | 0 | -18.3K |
| MORGAN STANLEY | New | 0 | 13.1K | +13.1K |
| Leonteq Securities AG | New | 0 | 12.5K | +12.5K |
| PRICE T ROWE ASSOCIATES INC /MD/ | New | 0 | 11.7K | +11.7K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 23.8K | 12.5K | -11.3K |
| Tower Research Capital LLC (TRC) | Sold Out | 7.3K | 0 | -7.3K |
| JPMORGAN CHASE & CO | Reduced | 5.9K | 42 | -5.8K |
| ROYAL BANK OF CANADA | Increased | 39 | 1.3K | +1.3K |
| UBS Group AG | Reduced | 1.3K | 618 | -706 |
| Vanguard Global Advisers, LLC | Sold Out | 660 | 0 | -660 |
| JONES FINANCIAL COMPANIES LLLP | New | 0 | 366 | +366 |
| Physician Wealth Advisors, Inc. | Sold Out | 301 | 0 | -301 |
| GROUP ONE TRADING LLC | Reduced | 223 | 33 | -190 |
| Farther Finance Advisors, LLC | Sold Out | 150 | 0 | -150 |
| SHP Wealth Management | Sold Out | 100 | 0 | -100 |
| Strategic Wealth Partners, Ltd. | Sold Out | 100 | 0 | -100 |
| BARCLAYS PLC | New | 0 | 9 | +9 |
| BANK OF AMERICA CORP /DE/ | Reduced | 161.5K | 161.5K | -6 |
| SIGNATUREFD, LLC | New | 0 | 1 | +1 |
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.