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, Q3 2021
Institutional positions in Quantum Corp as of Sep 30, 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
- 95
- −16 vs. Q2 2021
- Shares held
- 43.1M
- +927.2K (+2.2%) vs. Q2 2021
- Total value
- $226.7M
- −$66.2M (−22.6%) vs. Q2 2021
- New holders
- 8
- 45 more added
- Sold out
- 24
- 24 more reduced
Compare with Q2 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, Q3 2021
Shares, value and share of portfolio for each institution holding Quantum Corp; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| B. Riley Financial, Inc. | 7,607,611 | $39.4M | 4.99% | 00.0% | Unchanged |
| Neuberger Berman Group LLC | 7,133,535 | $36.8M | 0.03% | −135,782−1.9% | Reduced |
| BlackRock Inc. | 3,842,707 | $19.9M | 0.00% | +3730.0% | Added |
| TCW Group Inc | 2,120,168 | $14.6M | 0.13% | 00.0% | Unchanged |
| Senvest Management, LLC | 2,774,921 | $14.4M | 0.41% | +200,000+7.8% | Added |
| Vanguard Group Inc | 2,708,623 | $14.0M | 0.00% | +30,698+1.1% | Added |
| Russell Investments Group, Ltd. | 2,090,223 | $10.8M | 0.02% | +53,928+2.6% | Added |
| Roumell Asset Management, LLC | 1,564,540 | $8.10M | 10.74% | +539,688+52.7% | Added |
| Pacific Ridge Capital Partners, LLC | 1,277,754 | $6.62M | 1.22% | +101,253+8.6% | Added |
| Deep Field Asset Management LLC | 1,165,414 | $6.04M | 5.16% | +136,409+13.3% | Added |
| Geode Capital Management, LLC | 1,009,376 | $5.23M | 0.00% | +51,828+5.4% | Added |
| Heartland Advisors Inc | 800,000 | $4.14M | 0.25% | +50,000+6.7% | Added |
| State Street Corp | 792,278 | $4.10M | 0.00% | +15,995+2.1% | Added |
| JPMorgan Chase & Co | 762,862 | $3.95M | 0.00% | +24,917+3.4% | Added |
| Jacobs Levy Equity Management, Inc | 542,592 | $2.81M | 0.02% | +428,465+375.4% | Added |
| Northern Trust Corp | 525,663 | $2.72M | 0.00% | −1460.0% | Reduced |
| Goldman Sachs Group Inc | 497,520 | $2.58M | 0.00% | +217,725+77.8% | Added |
| King Luther Capital Management Corp | 436,100 | $2.26M | 0.01% | −15,000−3.3% | Reduced |
| Herald Investment Management Ltd | 300,000 | $1.55M | 0.26% | +200,727+202.2% | Added |
| Friess Associates LLC | 277,728 | $1.44M | 0.61% | +29,698+12.0% | Added |
| Eidelman Virant Capital | 273,000 | $1.44M | 0.56% | −27,000−9.0% | Reduced |
| Nuveen Asset Management, LLC | 267,910 | $1.43M | 0.00% | −8,932−3.2% | Reduced |
| Marathon Capital Management | 259,675 | $1.35M | 0.31% | +84,725+48.4% | Added |
| Glaxis Capital Management, LLC | 217,510 | $1.13M | 2.39% | +59,320+37.5% | Added |
| Acadian Asset Management LLC | 209,250 | $1.08M | 0.00% | +134,296+179.2% | Added |
| Boothbay Fund Management, LLC | 201,071 | $1.04M | 0.04% | +88,782+79.1% | Added |
| Deutsche Bank AG | 182,831 | $947.0K | 0.00% | −53,319−22.6% | Reduced |
| Bank of New York Mellon Corp | 175,367 | $909.0K | 0.00% | +16,848+10.6% | Added |
| Two Sigma Investments, LP | 152,272 | $789.0K | 0.00% | +14,608+10.6% | Added |
| Charles Schwab Investment Management Inc | 147,673 | $765.0K | 0.00% | +3,975+2.8% | Added |
| Two Sigma Advisers, LP | 144,300 | $747.0K | 0.00% | +72,800+101.8% | Added |
| LPL Financial LLC | 142,477 | $738.0K | 0.00% | +20,100+16.4% | Added |
| AWM Investment Company, Inc. | 116,850 | $605.0K | 0.06% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 114,615 | $594.0K | 0.00% | +3,909+3.5% | Added |
| Kennedy Capital Management, Inc. | 109,804 | $569.0K | 0.01% | −10,788−8.9% | Reduced |
| Kovack Advisors, Inc. | 107,200 | $555.0K | 0.06% | +82,650+336.7% | Added |
| Millennium Management LLC | 98,927 | $512.0K | 0.00% | −154,064−60.9% | Reduced |
| Bridgeway Capital Management, LLC | 94,000 | $487.0K | 0.01% | −26,200−21.8% | Reduced |
| White Pine Capital LLC | 93,812 | $486.0K | 0.15% | −219−0.2% | Reduced |
| Rovida Advisors Inc. | 91,022 | $471.0K | 0.02% | 00.0% | Unchanged |
| Adirondack Research & Management Inc. | 90,620 | $469.0K | 0.57% | 00.0% | Unchanged |
| Boston Partners | 87,602 | $454.0K | 0.00% | +3,339+4.0% | Added |
| Algert Global LLC | 79,556 | $412.0K | 0.05% | +31,136+64.3% | Added |
| Panagora Asset Management Inc | 78,029 | $404.0K | 0.00% | −96−0.1% | Reduced |
| PDT Partners, LLC | 71,100 | $368.0K | 0.03% | −13,745−16.2% | Reduced |
| Rhumbline Advisers | 70,943 | $367.0K | 0.00% | +1,922+2.8% | Added |
| Morgan Stanley | 63,203 | $327.0K | 0.00% | −90,304−58.8% | Reduced |
| Squarepoint Ops LLC | 61,911 | $321.0K | 0.00% | −27,481−30.7% | Reduced |
| Invesco Ltd. | 60,829 | $315.0K | 0.00% | +6,668+12.3% | Added |
| First Midwest Bank Trust Division | 58,549 | $303.0K | 0.04% | −13,306−18.5% | Reduced |
| Summit Global Investments | 57,300 | $297.0K | 0.02% | +32,600+132.0% | Added |
| Public Employees Retirement System of Ohio | 48,853 | $253.0K | 0.00% | +48,853 | New |
| HRT Financial LP | 48,294 | $250.0K | 0.00% | +48,294 | New |
| Price T Rowe Associates Inc | 44,377 | $230.0K | 0.00% | +6,874+18.3% | Added |
| Zebra Capital Management LLC | 43,737 | $227.0K | 0.27% | +43,737 | New |
| Diametric Capital, LP | 43,615 | $226.0K | 0.18% | +26,549+155.6% | Added |
| New York State Common Retirement Fund | 37,233 | $193.0K | 0.00% | +92+0.2% | Added |
| SG Americas Securities, LLC | 34,515 | $179.0K | 0.00% | +34,515 | New |
| Delta Investment Management, LLC | 34,245 | $177.0K | 0.06% | +5,000+17.1% | Added |
| Manufacturers Life Insurance Company, The | 33,163 | $172.0K | 0.00% | −500−1.5% | Reduced |
| Barclays PLC | 32,562 | $168.0K | 0.00% | +6,420+24.6% | Added |
| California State Teachers Retirement System | 31,802 | $165.0K | 0.00% | −44,934−58.6% | Reduced |
| American International Group, Inc. | 31,410 | $163.0K | 0.00% | +110+0.4% | Added |
| Prelude Capital Management, LLC | 26,576 | $138.0K | 0.01% | +16,432+162.0% | Added |
| Highland Private Wealth Management | 25,723 | $133.0K | 0.02% | 00.0% | Unchanged |
| SEI Investments Co | 25,517 | $127.0K | 0.00% | +286+1.1% | Added |
| Sphinx Trading, LP | 24,025 | $124.0K | 0.16% | +24,025 | New |
| Brasada Capital Management, LP | 23,680 | $123.0K | 0.02% | −1,170−4.7% | Reduced |
| Parametric Portfolio Associates LLC | 23,788 | $123.0K | 0.00% | −794−3.2% | Reduced |
| Royal Bank of Canada | 22,474 | $116.0K | 0.00% | +3,849+20.7% | Added |
| Voya Investment Management LLC | 21,520 | $111.0K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 20,650 | $107.0K | 0.00% | +20,650 | New |
| Sargent Bickham Lagudis LLC | 19,406 | $101.0K | 0.01% | 00.0% | Unchanged |
| Premier Asset Management LLC | 19,084 | $99.0K | 0.01% | −62,089−76.5% | Reduced |
| AQR Capital Management LLC | 17,758 | $92.0K | 0.00% | +17,758 | New |
| Citadel Advisors LLC | 17,127 | $89.0K | 0.00% | −8,871−34.1% | Reduced |
| Bank of America Corp | 15,875 | $82.0K | 0.00% | −519−3.2% | Reduced |
| K.J. Harrison & Partners Inc | 15,000 | $78.0K | 0.01% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 14,447 | $74.8K | 0.00% | +12,131+523.8% | Added |
| Captrust Financial Advisors | 13,778 | $71.0K | 0.00% | +403+3.0% | Added |
| Heritage Investors Management Corp | 12,190 | $63.0K | 0.00% | 00.0% | Unchanged |
| Ergoteles LLC | 11,800 | $61.0K | 0.00% | +11,800 | New |
| Spire Wealth Management | 9,377 | $49.0K | 0.00% | +1,000+11.9% | Added |
| Citigroup Inc | 6,539 | $34.0K | 0.00% | +3,504+115.5% | Added |
| Legal & General Group Plc | 4,441 | $23.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 4,380 | $23.0K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 4,064 | $21.0K | 0.01% | +999+32.6% | Added |
| Tower Research Capital LLC (TRC) | 3,897 | $20.0K | 0.00% | −1,607−29.2% | Reduced |
| Whittier Trust Co | 3,750 | $19.0K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 1,479 | $10.0K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 1,587 | $9.00K | 0.00% | 00.0% | Unchanged |
| Truvestments Capital LLC | 687 | $4.00K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 538 | $3.00K | 0.00% | −4,194−88.6% | Reduced |
| Highlander Capital Management, LLC | 25 | $0 | 0.00% | 00.0% | Unchanged |
| Berman Capital Advisors, LLC | 41 | $0 | 0.00% | 00.0% | Unchanged |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −356,459−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −277,769−100.0% | Sold out |
| Paradigm Capital Management Inc | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| First Trust Advisors LP | 0 | $0 | 0.00% | −144,939−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −78,799−100.0% | Sold out |