22 institutions reported holding $2.9M of Q/C TECHNOLOGIES INC (QCLS) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($616,528), Quinn Opportunity Partners LLC ($479,794), JANE STREET GROUP, LLC ($340,240), GEODE CAPITAL MANAGEMENT, LLC ($275,659), UBS Group AG ($229,686). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $616,528 | 158,084 | Added |
| 2 | Quinn Opportunity Partners LLC | $479,794 | 123,024 | Trimmed |
| 3 | JANE STREET GROUP, LLC | $340,240 | 87,241 | Trimmed |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | $275,659 | 70,682 | Added |
| 5 | UBS Group AG | $229,686 | 58,894 | Trimmed |
| 6 | Balyasny Asset Management L.P. | $224,999 | 57,692 | New |
| 7 | HRT FINANCIAL LP | $196,000 | 50,373 | Added |
| 8 | ADAR1 Capital Management, LLC | $195,000 | 50,000 | Hold |
| 9 | STATE STREET CORP | $98,690 | 25,305 | Added |
| 10 | DIMENSIONAL FUND ADVISORS LP | $74,326 | 19,058 | Hold |
| 11 | NORTHERN TRUST CORP | $70,188 | 17,997 | New |
| 12 | PEAK6 LLC | $49,834 | 12,778 | New |
| 13 | PIN OAK INVESTMENT ADVISORS INC | $14,000 | 3,500 | Hold |
| 14 | Tower Research Capital LLC (TRC) | $4,068 | 1,043 | Trimmed |
| 15 | BARCLAYS PLC | $3,705 | 950 | New |
| 16 | SBI Securities Co., Ltd. | $390 | 100 | New |
| 17 | BlackRock, Inc. | $74 | 19 | Hold |
| 18 | Caitong International Asset Management Co., Ltd | $35 | 9 | New |
| 19 | JONES FINANCIAL COMPANIES LLLP | $7 | 2 | Hold |
| 20 | BRYN MAWR TRUST Co | $4 | 1 | Hold |
| 21 | BNP PARIBAS FINANCIAL MARKETS | $0 | 0 | Exited |
| 22 | Royal Bank of Canada | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30