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, Q4 2021
Institutional positions in Quantum Corp as of Dec 31, 2021. 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
- 105
- +12 vs. Q3 2021
- Shares held
- 42.0M
- −1.04M (−2.4%) vs. Q3 2021
- Total value
- $230.2M
- +$3.93M (+1.7%) vs. Q3 2021
- New holders
- 17
- 33 more added
- Sold out
- 5
- 37 more reduced
2 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2021: 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, Q4 2021
Shares, value and share of portfolio for each institution holding Quantum Corp; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Highlander Capital Management, LLC | 25 | $0 | 0.00% | 00.0% | Unchanged |
| Toronto Dominion Bank | 6 | $0 | 0.00% | +6 | New |
| Corbenic Partners LLC | 50 | $0 | 0.00% | +50 | New |
| Sterling Investment Advisors, Ltd. | 65,000 | $0 | 0.00% | +65,000 | New |
| Group One Trading, L.P. | 100 | $1.00K | 0.00% | +100 | New |
| Ellevest, Inc. | 120 | $1.00K | 0.00% | +120 | New |
| Truvestments Capital LLC | 687 | $4.00K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 1,587 | $9.00K | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co | 3,750 | $21.0K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 4,059 | $22.0K | 0.01% | −5−0.1% | Reduced |
| Cambridge Trust Co | 4,125 | $23.0K | 0.00% | +4,125 | New |
| Ameritas Investment Partners, Inc. | 4,380 | $24.0K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 4,441 | $25.0K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 5,407 | $29.8K | 0.00% | −15,243−73.8% | Reduced |
| Tower Research Capital LLC (TRC) | 6,788 | $37.0K | 0.00% | +2,891+74.2% | Added |
| Nisa Investment Advisors, LLC | 7,340 | $37.0K | 0.00% | +7,340 | New |
| Spire Wealth Management | 9,377 | $52.0K | 0.00% | 00.0% | Unchanged |
| Jump Financial, LLC | 10,900 | $60.0K | 0.00% | +10,900 | New |
| Diversified Trust Co | 11,449 | $63.0K | 0.00% | +11,449 | New |
| Dynamic Technology Lab Private Ltd | 11,334 | $63.0K | 0.01% | +11,334 | New |
| Metropolitan Life Insurance Co | 11,486 | $63.4K | 0.00% | −2,961−20.5% | Reduced |
| Heritage Investors Management Corp | 12,190 | $67.0K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 12,771 | $70.0K | 0.00% | +12,771 | New |
| Captrust Financial Advisors | 13,153 | $73.0K | 0.00% | −625−4.5% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 13,253 | $73.0K | 0.00% | +13,253 | New |
| Brasada Capital Management, LP | 14,080 | $78.0K | 0.01% | −9,600−40.5% | Reduced |
| SG Americas Securities, LLC | 15,003 | $83.0K | 0.00% | −19,512−56.5% | Reduced |
| K.J. Harrison & Partners Inc | 15,000 | $83.0K | 0.01% | 00.0% | Unchanged |
| Citigroup Inc | 15,201 | $84.0K | 0.00% | +8,662+132.5% | Added |
| Morgan Stanley | 17,368 | $96.0K | 0.00% | −45,835−72.5% | Reduced |
| PDT Partners, LLC | 18,711 | $103.0K | 0.01% | −52,389−73.7% | Reduced |
| Sargent Bickham Lagudis LLC | 19,406 | $107.0K | 0.01% | 00.0% | Unchanged |
| Prelude Capital Management, LLC | 20,164 | $111.0K | 0.01% | −6,412−24.1% | Reduced |
| Sphinx Trading, LP | 21,499 | $119.0K | 0.12% | −2,526−10.5% | Reduced |
| Engineers Gate Manager LP | 23,165 | $128.0K | 0.01% | +23,165 | New |
| SEI Investments Co | 26,272 | $137.0K | 0.00% | +755+3.0% | Added |
| Highland Private Wealth Management | 25,723 | $142.0K | 0.02% | 00.0% | Unchanged |
| UBS Group AG | 26,551 | $146.0K | 0.00% | +26,551 | New |
| Parametric Portfolio Associates LLC | 27,467 | $152.0K | 0.00% | +3,679+15.5% | Added |
| Royal Bank of Canada | 27,963 | $154.0K | 0.00% | +5,489+24.4% | Added |
| American International Group, Inc. | 31,057 | $171.0K | 0.00% | −353−1.1% | Reduced |
| Manufacturers Life Insurance Company, The | 31,171 | $172.0K | 0.00% | −1,992−6.0% | Reduced |
| Squarepoint Ops LLC | 31,722 | $175.0K | 0.00% | −30,189−48.8% | Reduced |
| California State Teachers Retirement System | 31,802 | $176.0K | 0.00% | 00.0% | Unchanged |
| Zebra Capital Management LLC | 34,227 | $189.0K | 0.30% | −9,510−21.7% | Reduced |
| Delta Investment Management, LLC | 34,245 | $189.0K | 0.05% | 00.0% | Unchanged |
| Wells Fargo & Company | 34,922 | $193.0K | 0.00% | +34,384+6,391.1% | Added |
| Summit Global Investments | 35,820 | $198.0K | 0.01% | −21,480−37.5% | Reduced |
| Diametric Capital, LP | 36,082 | $199.0K | 0.15% | −7,533−17.3% | Reduced |
| New York State Common Retirement Fund | 37,280 | $206.0K | 0.00% | +47+0.1% | Added |
| AQR Capital Management LLC | 37,572 | $207.0K | 0.00% | +19,814+111.6% | Added |
| Voya Investment Management LLC | 48,077 | $265.0K | 0.00% | +26,557+123.4% | Added |
| Invesco Ltd. | 48,348 | $267.0K | 0.00% | −12,481−20.5% | Reduced |
| Bank of America Corp | 48,738 | $269.0K | 0.00% | +32,863+207.0% | Added |
| Public Employees Retirement System of Ohio | 48,853 | $270.0K | 0.00% | 00.0% | Unchanged |
| White Pine Capital LLC | 53,536 | $296.0K | 0.09% | −40,276−42.9% | Reduced |
| Price T Rowe Associates Inc | 54,577 | $301.0K | 0.00% | +10,200+23.0% | Added |
| First Midwest Bank Trust Division | 58,549 | $323.0K | 0.04% | 00.0% | Unchanged |
| RBF Capital, LLC | 60,000 | $331.0K | 0.02% | +60,000 | New |
| Rovida Advisors Inc. | 61,022 | $336.0K | 0.02% | −30,000−33.0% | Reduced |
| Algert Global LLC | 63,456 | $350.0K | 0.04% | −16,100−20.2% | Reduced |
| Rhumbline Advisers | 71,525 | $395.0K | 0.00% | +582+0.8% | Added |
| Boston Partners | 75,768 | $418.0K | 0.00% | −11,834−13.5% | Reduced |
| Barclays PLC | 80,044 | $441.0K | 0.00% | +47,482+145.8% | Added |
| Mackenzie Financial Corp | 82,858 | $457.0K | 0.00% | +82,858 | New |
| Two Sigma Investments, LP | 92,671 | $512.0K | 0.00% | −59,601−39.1% | Reduced |
| Kennedy Capital Management, Inc. | 100,586 | $555.0K | 0.01% | −9,218−8.4% | Reduced |
| Citadel Advisors LLC | 114,159 | $630.0K | 0.00% | +97,032+566.5% | Added |
| Acadian Asset Management LLC | 120,187 | $662.0K | 0.00% | −89,063−42.6% | Reduced |
| Kovack Advisors, Inc. | 125,100 | $691.0K | 0.07% | +17,900+16.7% | Added |
| Two Sigma Advisers, LP | 126,200 | $697.0K | 0.00% | −18,100−12.5% | Reduced |
| Panagora Asset Management Inc | 149,535 | $825.0K | 0.00% | +71,506+91.6% | Added |
| Charles Schwab Investment Management Inc | 154,561 | $854.0K | 0.00% | +6,888+4.7% | Added |
| LPL Financial LLC | 170,510 | $941.0K | 0.00% | +28,033+19.7% | Added |
| D. E. Shaw & Co., Inc. | 179,388 | $990.0K | 0.00% | +64,773+56.5% | Added |
| Deutsche Bank AG | 184,661 | $1.02M | 0.00% | +1,830+1.0% | Added |
| Nuveen Asset Management, LLC | 210,877 | $1.05M | 0.00% | −57,033−21.3% | Reduced |
| Millennium Management LLC | 193,137 | $1.07M | 0.00% | +94,210+95.2% | Added |
| Bank of New York Mellon Corp | 208,609 | $1.15M | 0.00% | +33,242+19.0% | Added |
| Glaxis Capital Management, LLC | 217,510 | $1.20M | 3.18% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 224,076 | $1.24M | 0.00% | −538,786−70.6% | Reduced |
| Marathon Capital Management | 235,225 | $1.30M | 0.30% | −24,450−9.4% | Reduced |
| Boothbay Fund Management, LLC | 255,391 | $1.41M | 0.05% | +54,320+27.0% | Added |
| Eidelman Virant Capital | 277,000 | $1.53M | 0.56% | +4,000+1.5% | Added |
| AWM Investment Company, Inc. | 290,564 | $1.60M | 0.16% | +173,714+148.7% | Added |
| Friess Associates LLC | 381,313 | $2.10M | 0.82% | +103,585+37.3% | Added |
| Jacobs Levy Equity Management, Inc | 387,523 | $2.14M | 0.01% | −155,069−28.6% | Reduced |
| Goldman Sachs Group Inc | 415,998 | $2.30M | 0.00% | −81,522−16.4% | Reduced |
| Herald Investment Management Ltd | 450,000 | $2.48M | 0.40% | +150,000+50.0% | Added |
| King Luther Capital Management Corp | 464,180 | $2.56M | 0.01% | +28,080+6.4% | Added |
| Northern Trust Corp | 494,454 | $2.73M | 0.00% | −31,209−5.9% | Reduced |
| State Street Corp | 810,244 | $4.47M | 0.00% | +17,966+2.3% | Added |
| Heartland Advisors Inc | 850,000 | $4.69M | 0.28% | +50,000+6.3% | Added |
| Geode Capital Management, LLC | 976,695 | $5.39M | 0.00% | −32,681−3.2% | Reduced |
| Deep Field Asset Management LLC | 1,230,000 | $6.79M | 5.77% | +64,586+5.5% | Added |
| Pacific Ridge Capital Partners, LLC | 1,255,602 | $6.93M | 1.23% | −22,152−1.7% | Reduced |
| Roumell Asset Management, LLC | 1,564,540 | $8.64M | 11.51% | 00.0% | Unchanged |
| B. Riley Asset Management, LLC | 1,704,376 | $9.41M | 4.96% | +1,704,376 | New |
| Russell Investments Group, Ltd. | 1,807,541 | $9.97M | 0.02% | −282,682−13.5% | Reduced |
| TCW Group Inc | 2,120,168 | $11.0M | 0.09% | 00.0% | Unchanged |