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 September 30, 2026.
Only 9 managers reported a position this quarter, so the percentages above describe a very small sample.
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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 |
|---|---|---|
| Crescent Grove Advisors, LLC | 376.7K | 86.2% |
| GEODE CAPITAL MANAGEMENT, LLC | 42.9K | 9.8% |
| UBS Group AG | 14.4K | 3.3% |
| CITIGROUP INC | 3.0K | 0.7% |
| SBI Securities Co., Ltd. | 80 | 0.0% |
| Caitong International Asset Management Co., Ltd | 44 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Crescent Grove Advisors, LLC | Increased | 75.5K | 376.7K | +301.2K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 12.5K | 42.9K | +30.4K |
| UBS Group AG | Increased | 618 | 14.4K | +13.8K |
| Leonteq Securities AG | Sold Out | 12.5K | 0 | -12.5K |
| CITIGROUP INC | New | 0 | 3.0K | +3.0K |
| Caitong International Asset Management Co., Ltd | New | 0 | 44 | +44 |
| SBI Securities Co., Ltd. | Increased | 60 | 80 | +20 |
| BARCLAYS PLC | Sold Out | 9 | 0 | -9 |
| SIGNATUREFD, LLC | Sold Out | 1 | 0 | -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.