Quantum Corp
QMCO- Exchange
- Nasdaq
- Industry
- Computer Storage Devices
- SEC CIK
- 0000709283
In the last 90 days, Quantum Corp insiders filed 0 open-market purchases and 3 sales; 60 institutions reported holding it in 13F filings for Q2 2026, worth $158.1M in total; Oaktree Capital is the only superinvestor holding it.
13F holders, Q2 2025
Institutional positions in Quantum Corp as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 35
- +6 vs. Q1 2025
- Shares held
- 884.3K
- −805.1K (−47.7%) vs. Q1 2025
- Total value
- $8.82M
- −$15.5M (−63.7%) vs. Q1 2025
- New holders
- 13
- 9 more added
- Sold out
- 7
- 8 more reduced
Compare with Q1 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting QMCO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 60 | $158.1M |
| Q1 2026 | 37 | $7.66M |
| Q4 2025 | 40 | $13.3M |
| Q3 2025 | 29 | $8.58M |
| Q2 2025 | 35 | $8.82M |
| Q1 2025 | 29 | $24.3M |
| Q4 2024 | 47 | $95.0M |
| Q3 2024 | 26 | $7.96M |
| Q2 2024 | 52 | $19.5M |
| Q1 2024 | 60 | $28.6M |
| Q4 2023 | 62 | $17.8M |
| Q3 2023 | 62 | $34.8M |
| Q2 2023 | 64 | $63.1M |
| Q1 2023 | 72 | $68.9M |
| Q4 2022 | 76 | $70.7M |
| Q3 2022 | 83 | $69.0M |
| Q2 2022 | 92 | $93.6M |
| Q1 2022 | 94 | $99.0M |
| Q4 2021 | 105 | $230.2M |
| Q3 2021 | 95 | $226.7M |
| Q2 2021 | 111 | $292.9M |
| Q1 2021 | 106 | $333.3M |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Quantum Corp; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 256,678 | $2.56M | 0.00% | +2,232+0.9% | Added |
| Marshall Wace, LLP | 178,021 | $1.77M | 0.00% | +178,021 | New |
| BlackRock, Inc. | 141,311 | $1.41M | 0.00% | +12,079+9.3% | Added |
| Geode Capital Management, LLC | 69,384 | $692.0K | 0.00% | +5,806+9.1% | Added |
| UBS Group AG | 60,221 | $600.4K | 0.00% | +38,235+173.9% | Added |
| Morgan Stanley | 45,733 | $456.0K | 0.00% | +43,519+1,965.6% | Added |
| State Street Corp | 27,347 | $272.6K | 0.00% | 00.0% | Unchanged |
| Sassicaia Capital Advisers LLC | 23,267 | $232.0K | 0.15% | +23,267 | New |
| Royal Bank of Canada | 19,353 | $193.0K | 0.00% | +19,353 | New |
| Northern Trust Corp | 11,687 | $116.5K | 0.00% | 00.0% | Unchanged |
| Apollon Wealth Management, LLC | 10,714 | $106.8K | 0.00% | +10,714 | New |
| CIBC Private Wealth Group, LLC | 10,404 | $103.7K | 0.00% | +10,404 | New |
| SBI Securities Co., Ltd. | 5,636 | $56.2K | 0.00% | +2,809+99.4% | Added |
| Wells Fargo & Company | 5,315 | $53.0K | 0.00% | +4,740+824.3% | Added |
| Quest Partners LLC | 4,707 | $46.9K | 0.00% | −4,946−51.2% | Reduced |
| Raymond James Financial Inc | 4,615 | $46.0K | 0.00% | +4,615 | New |
| Hollencrest Capital Management | 2,000 | $19.9K | 0.00% | +2,000 | New |
| Citigroup Inc | 1,236 | $12.3K | 0.00% | +1,236 | New |
| Covestor Ltd | 942 | $9.00K | 0.01% | +942 | New |
| BNP Paribas Arbitrage, SA | 820 | $8.18K | 0.00% | −2,441−74.9% | Reduced |
| Tower Research Capital LLC (TRC) | 722 | $7.20K | 0.00% | −1,572−68.5% | Reduced |
| GWM Advisors LLC | 700 | $6.98K | 0.00% | +700 | New |
| Bank of America Corp | 662 | $6.60K | 0.00% | −74,644−99.1% | Reduced |
| Caitong International Asset Management Co., Ltd | 632 | $6.30K | 0.00% | −1,064−62.7% | Reduced |
| FNY Investment Advisers, LLC | 667 | $6.00K | 0.00% | +667 | New |
| Barclays PLC | 455 | $4.54K | 0.00% | −281−38.2% | Reduced |
| Jones Financial Companies LLLP | 494 | $4.47K | 0.00% | +77+18.5% | Added |
| Fifth Third Bancorp | 295 | $2.94K | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co | 187 | $1.86K | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 46 | $459 | 0.00% | +46 | New |
| Rialto Wealth Management, LLC | 42 | $419 | 0.00% | +42 | New |
| Advisor Group Holdings, Inc. | 35 | $348 | 0.00% | +10+40.0% | Added |
| JPMorgan Chase & Co | 8 | $80 | 0.00% | −4,505−99.8% | Reduced |
| Farther Finance Advisors, LLC | 4 | $40 | 0.00% | 00.0% | Unchanged |
| Activest Wealth Management | 0 | $2 | 0.00% | −4,283−100.0% | Reduced |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −962,127−100.0% | Sold out |
| UNICOM Systems, Inc. | 0 | $0 | 0.00% | −75,237−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −19,721−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −15,667−100.0% | Sold out |
| CWM, LLC | 0 | $0 | 0.00% | −65−100.0% | Sold out |
| Continuum Advisory, LLC | 0 | $0 | 0.00% | −34−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −20−100.0% | Sold out |