Q/C Technologies, Inc. (QCLS) Ownership
QCLS ownership summary
as of October 18, 2026- Institutions
- 9.0% of shares outstanding
- Insiders
- 7.53% of shares outstanding
- Shares outstanding
- 8.2M
- Float
- 7.9M shares available to trade
- Short interest
- 52.92% 948K shares short
- Days to cover
- 0.07 short interest down 50.2% vs prior month
- Institutions 9.02%
- Insiders 7.53%
- Other investors 83.45%
QCLS top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Quinn Opportunity Partners LLC | 1.50% | 123K | $66,187 | −88,366 (−41.8%) | June 30, 2026 |
| 2 | Vanguard Capital Management, LLC | 1.40% | 115K | $61,887 | +77,520 (+206.7%) | June 30, 2026 |
| 3 | Jane Street Group LLC | 1.07% | 87K | $46,936 | −38,947 (−30.9%) | June 30, 2026 |
| 4 | Geode Capital Management, LLC | 0.86% | 71K | $38,027 | +23,292 (+49.1%) | June 30, 2026 |
| 5 | UBS Group AG | 0.72% | 59K | $31,685 | −19,095 (−24.5%) | June 30, 2026 |
| 6 | Balyasny Asset Management LLC | 0.70% | 58K | $31,038 | +57,692 (0.0%) | June 30, 2026 |
| 7 | HRT FINANCIAL LLC | 0.62% | 50K | $27,101 | +27,969 (+124.8%) | June 30, 2026 |
| 8 | ADAR1 Capital Management LLC | 0.61% | 50K | $26,900 | — | June 30, 2026 |
| 9 | Vanguard Fiduciary Trust Co | 0.53% | 43K | $23,163 | +27,498 (+176.8%) | June 30, 2026 |
| 10 | State Street Corp | 0.31% | 25K | $13,614 | +12,400 (+96.1%) | June 30, 2026 |
| 11 | Dimensional Fund Advisors, Inc. | 0.23% | 19K | $10,253 | — | June 30, 2026 |
| 12 | Northern Trust Corp | 0.22% | 18K | $9,682 | +17,997 (0.0%) | June 30, 2026 |
| 13 | Pin Oak Investment Advisors Inc | 0.04% | 3,500 | $1,883 | — | June 30, 2026 |
| 14 | Sunbelt Securities | 0.02% | 1,750 | $942 | +1,750 (0.0%) | March 31, 2026 |
| 15 | Tower Research Capital LLC | 0.01% | 1,043 | $561 | −550 (−34.5%) | June 30, 2026 |
| 16 | Barclays PLC | 0.01% | 950 | $511 | +950 (0.0%) | June 30, 2026 |
| 17 | SBI Securities Co Ltd | <0.01% | 100 | $54 | +100 (0.0%) | June 30, 2026 |
| 18 | BlackRock Inc | <0.01% | 19 | $10 | — | June 30, 2026 |
| 19 | Caitong International Asset Management Co., Limited. | <0.01% | 9 | $5 | +9 (0.0%) | June 30, 2026 |
| 20 | Royal Bank of Canada | <0.01% | 6 | $3 | +2 (+50.0%) | March 31, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 247K shares and 4 cut 147K.
QCLS top mutual fund and ETF holders
5 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Extended Market Index | 0.61% | 50K | $26,967 | +9,026 (+22.0%) | August 31, 2026 |
| 2 | Fidelity Series Total Market Index | 0.16% | 13K | $6,990 | — | August 31, 2026 |
| 3 | Fidelity Total Market Index | 0.14% | 11K | $6,130 | +940 (+9.0%) | August 31, 2026 |
| 4 | Fidelity Nasdaq Composite Index | 0.07% | 5,674 | $3,053 | — | August 31, 2026 |
| 5 | Dimensional US Small Cap ETF | 0.07% | 5,569 | $2,996 | — | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
QCLS shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns QCLS
Institutional investors own 9.0% of Q/C Technologies's shares and insiders 7.53%. The largest holder is Quinn Opportunity Partners LLC with 1.50% of the shares (123K), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 4 reduced their stake in the latest filings. Short interest is 52.92% of the float, or 0.07 days of average trading volume. The share count rose 669.0% since 2011.
Related: QCLS key metrics. See the QCLS stock overview for the latest quote and news.
QCLS ownership FAQ
Who owns the most Q/C Technologies stock?
The largest shareholders of Q/C Technologies are Quinn Opportunity Partners LLC (1.50%), Vanguard Capital Management, LLC (1.40%), Jane Street Group LLC (1.07%), Geode Capital Management, LLC (0.86%), UBS Group AG (0.72%).
What percentage of Q/C Technologies is owned by institutions?
Institutions hold 9.0% of Q/C Technologies's shares outstanding; insiders hold 7.53%.
Which funds own Q/C Technologies?
The largest fund holders of Q/C Technologies are Fidelity Extended Market Index (0.61%), Fidelity Series Total Market Index (0.16%), Fidelity Total Market Index (0.14%), Fidelity Nasdaq Composite Index (0.07%), Dimensional US Small Cap ETF (0.07%).
What is Q/C Technologies's short interest?
948K shares of Q/C Technologies were sold short, 52.92% of the float; at the average daily volume it would take 0.07 days to cover.
How many shares of Q/C Technologies are outstanding?
Q/C Technologies has 8.2M shares outstanding, of which 7.9M are in the public float.