Filing Flows › System1 (SST) › Who owns the stock
Who owns System1 (SST) stock
20 funds reported System1 (SST) shares in their latest 13F filings, worth $2.4M in all. The largest holder is Crescent Grove Advisors, LLC ($987K). Last quarter 10 funds added to their stakes and 11 cut them.
Largest holders (13F)
| Fund | Shares | Value | Change | Quarter |
|---|---|---|---|---|
| Crescent Grove Advisors, LLC | 376,737 | $987K | increase | 2026-09-30 |
| Bank of America | 161,513 | $373K | decrease | 2026-06-30 |
| Vanguard Capital Management LLC | 127,576 | $295K | increase | 2026-06-30 |
| Cerity Partners LLC | 116,844 | $270K | unchanged | 2026-06-30 |
| Vanguard Group | 46,933 | $184K | unchanged | 2025-12-31 |
| BlackRock | 43,353 | $100K | increase | 2026-06-30 |
| Morgan Stanley | 13,134 | $30K | new | 2026-06-30 |
| Geode Capital Management, LLC | 12,519 | $29K | decrease | 2026-06-30 |
| Price T Rowe Associates | 11,731 | $28K | new | 2026-06-30 |
| State Street | 11,502 | $27K | unchanged | 2026-06-30 |
| Vanguard Fiduciary Trust | 9,141 | $21K | unchanged | 2026-06-30 |
| Royal Bank of Canada | 1,314 | $3K | increase | 2026-06-30 |
| UBS Group AG | 618 | $1K | decrease | 2026-06-30 |
| Jones Financial Companies Lllp | 366 | $1K | new | 2026-06-30 |
| CWM, LLC | 114 | $344 | decrease | 2026-03-31 |
System1's latest quarter
System1, Q2 2026: revenue $30.2M (-61% year over year), operating margin -27.5%, net loss $15.3M, operating cash flow −$2.0M. The chart follows the revenue to costs, profit and cash.
Questions
Who owns the most SST stock?
By the latest 13F filings: Crescent Grove Advisors, LLC ($987K); Bank of America ($373K); Vanguard Capital Management LLC ($295K); Cerity Partners LLC ($270K); Vanguard Group ($184K).
What is the short interest in SST?
310,876 shares were sold short at the 2026-10-15 settlement, -4.14% of the float.
Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.