29 institutions reported holding $1.4M of SYSTEM1 INC (SST) in SEC 13F filings for 2026-06-30. Largest institutional holders: BANK OF AMERICA CORP /DE/ ($373,095), VANGUARD GROUP INC ($315,817), Cerity Partners LLC ($269,910), Crescent Grove Advisors, LLC ($174,509), BlackRock, Inc. ($100,145). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | BANK OF AMERICA CORP /DE/ | $373,095 | 161,513 | Trimmed |
| 2 | VANGUARD GROUP INC | $315,817 | 136,717 | Added |
| 3 | Cerity Partners LLC | $269,910 | 116,844 | Hold |
| 4 | Crescent Grove Advisors, LLC | $174,509 | 75,545 | New |
| 5 | BlackRock, Inc. | $100,145 | 43,353 | Added |
| 6 | MORGAN STANLEY | $30,340 | 13,134 | New |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $28,934 | 12,519 | Trimmed |
| 8 | Leonteq Securities AG | $28,875 | 12,500 | New |
| 9 | PRICE T ROWE ASSOCIATES INC /MD/ | $28,000 | 11,731 | New |
| 10 | STATE STREET CORP | $26,570 | 11,502 | Hold |
| 11 | Royal Bank of Canada | $3,000 | 1,314 | Added |
| 12 | UBS Group AG | $1,428 | 618 | Trimmed |
| 13 | JONES FINANCIAL COMPANIES LLLP | $919 | 366 | New |
| 14 | BNP PARIBAS FINANCIAL MARKETS | $199 | 86 | Hold |
| 15 | SBI Securities Co., Ltd. | $139 | 60 | Hold |
| 16 | JPMORGAN CHASE & CO | $102 | 42 | Trimmed |
| 17 | OSAIC HOLDINGS, INC. | $80 | 35 | Hold |
| 18 | GROUP ONE TRADING LLC | $76 | 33 | Trimmed |
| 19 | BARCLAYS PLC | $21 | 9 | New |
| 20 | SIGNATUREFD, LLC | $2 | 1 | New |
| 21 | MILLENNIUM MANAGEMENT LLC | $0 | 0 | Exited |
| 22 | Tower Research Capital LLC (TRC) | $0 | 0 | Exited |
| 23 | Cannae Holdings, Inc. | $0 | 0 | Exited |
| 24 | Strategic Wealth Partners, Ltd. | $0 | 0 | Exited |
| 25 | Physician Wealth Advisors, Inc. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30