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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, Q1 2021

Institutional positions in Quantum Corp as of Mar 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
106
No complete 13F data for Q4 2020
Shares held
40.7M
No complete 13F data for Q4 2020
Total value
$333.3M
No complete 13F data for Q4 2020

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.

Institutional holdersQ1 2021: 106 institutions
Q1 2021: 106 institutionsQ2 2021: 111 institutionsQ3 2021: 95 institutionsQ4 2021: 105 institutionsQ1 2022: 94 institutionsQ2 2022: 92 institutionsQ3 2022: 83 institutionsQ4 2022: 76 institutionsQ1 2023: 72 institutionsQ2 2023: 64 institutionsQ3 2023: 62 institutionsQ4 2023: 62 institutionsQ1 2024: 60 institutionsQ2 2024: 52 institutionsQ3 2024: 26 institutionsQ4 2024: 47 institutionsQ1 2025: 29 institutionsQ2 2025: 35 institutionsQ3 2025: 29 institutionsQ4 2025: 40 institutionsQ1 2026: 37 institutionsQ2 2026: 60 institutions
Value heldQ1 2021: $333.3M
Q1 2021: $333.3MQ2 2021: $292.9MQ3 2021: $226.7MQ4 2021: $230.2MQ1 2022: $99.0MQ2 2022: $93.6MQ3 2022: $69.0MQ4 2022: $70.7MQ1 2023: $68.9MQ2 2023: $63.1MQ3 2023: $34.8MQ4 2023: $17.8MQ1 2024: $28.6MQ2 2024: $19.5MQ3 2024: $7.96MQ4 2024: $95.0MQ1 2025: $24.3MQ2 2025: $8.82MQ3 2025: $8.58MQ4 2025: $13.3MQ1 2026: $7.66MQ2 2026: $158.1M
Institutions holding QMCO and their total value by quarter
QuarterHoldersValue
Q2 202660$158.1M
Q1 202637$7.66M
Q4 202540$13.3M
Q3 202529$8.58M
Q2 202535$8.82M
Q1 202529$24.3M
Q4 202447$95.0M
Q3 202426$7.96M
Q2 202452$19.5M
Q1 202460$28.6M
Q4 202362$17.8M
Q3 202362$34.8M
Q2 202364$63.1M
Q1 202372$68.9M
Q4 202276$70.7M
Q3 202283$69.0M
Q2 202292$93.6M
Q1 202294$99.0M
Q4 2021105$230.2M
Q3 202195$226.7M
Q2 2021111$292.9M
Q1 2021106$333.3M

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Quantum Corp.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding QMCO in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
B. Riley Financial, Inc.8,547,611$71.2M8.55%––
Neuberger Berman Group LLC6,156,718$51.2M0.05%––
BlackRock Inc.2,570,368$21.4M0.00%––
Vanguard Group Inc2,396,233$20.0M0.00%––
Senvest Management, LLC1,911,405$15.9M0.50%––
Russell Investments Group, Ltd.1,898,616$15.8M0.03%––
TCW Group Inc2,262,290$13.8M0.13%––
Ophir Asset Management Pty Ltd1,350,658$10.8M2.18%––
Deep Field Asset Management LLC977,005$8.14M5.47%––
Pacific Ridge Capital Partners, LLC919,831$7.66M1.45%––
Roumell Asset Management, LLC901,518$7.51M10.86%––
Geode Capital Management, LLC816,733$6.80M0.00%––
Heartland Advisors Inc750,000$6.25M0.39%––
JPMorgan Chase & Co723,395$6.03M0.00%––
State Street Corp507,535$4.23M0.00%––
Portolan Capital Management, LLC468,947$3.91M0.31%––
Kepos Capital LP450,000$3.75M0.24%––
Northern Trust Corp443,085$3.69M0.00%––
AWM Investment Company, Inc.410,000$3.42M0.38%––
King Luther Capital Management Corp409,200$3.41M0.02%––
Eidelman Virant Capital363,000$3.13M1.27%––
Friess Associates LLC337,630$2.81M1.09%––
Jacobs Levy Equity Management, Inc273,655$2.28M0.02%––
Invesco Ltd.268,842$2.24M0.00%––
Calamos Advisors LLC265,736$2.21M0.01%––
Arrowstreet Capital, Limited Partnership262,171$2.18M0.00%––
Kennedy Capital Management, Inc.252,983$2.11M0.04%––
Deutsche Bank AG208,094$1.73M0.00%––
Paradigm Capital Management Inc200,000$1.67M0.09%––
EAM Investors, LLC165,522$1.38M0.21%––
Nuveen Asset Management, LLC162,546$1.35M0.00%––
First Trust Advisors LP149,054$1.24M0.00%––
Bridgeway Capital Management, LLC146,200$1.22M0.02%––
Marathon Capital Management138,425$1.15M0.30%––
Squarepoint Ops LLC125,822$1.05M0.01%––
Boston Partners125,703$1.05M0.00%––
Charles Schwab Investment Management Inc107,264$894.0K0.00%––
Bank of New York Mellon Corp104,528$870.0K0.00%––
LPL Financial LLC102,636$855.0K0.00%––
Herald Investment Management Ltd99,273$822.0K0.14%––
White Pine Capital LLC96,083$800.0K0.25%––
Adirondack Research & Management Inc.90,590$755.0K0.89%––
Rovida Advisors Inc.91,022$755.0K0.04%––
Millennium Management LLC89,213$743.0K0.00%––
Goldman Sachs Group Inc87,767$731.0K0.00%––
Glaxis Capital Management, LLC86,550$721.0K0.78%––
Union Square Park Capital Management, LLC80,000$666.0K0.38%––
Panagora Asset Management Inc78,402$653.0K0.00%––
Algert Global LLC75,040$625.0K0.20%––
First Midwest Bank Trust Division73,285$610.0K0.08%––
Two Sigma Investments, LP67,785$565.0K0.00%––
Boothbay Fund Management, LLC64,594$538.0K0.03%––
Premier Asset Management LLC63,389$528.0K0.09%––
California State Teachers Retirement System62,741$523.0K0.00%––
California Public Employees Retirement System60,762$506.0K0.00%––
Susquehanna International Group, LLP50,035$417.0K0.00%––
Bank of America Corp44,160$368.0K0.00%––
Barclays PLC43,887$366.0K0.00%––
Rhumbline Advisers40,658$339.0K0.00%––
Price T Rowe Associates Inc40,289$336.0K0.00%––
Highland Private Wealth Management31,723$264.0K0.04%––
Alpha Paradigm Partners, LLC31,652$264.0K0.10%––
New York State Common Retirement Fund30,400$253.0K0.00%––
Brasada Capital Management, LP28,000$233.0K0.05%––
Two Sigma Advisers, LP26,700$222.0K0.00%––
Manufacturers Life Insurance Company, The24,917$208.0K0.00%––
Kovack Advisors, Inc.24,550$205.0K0.03%––
American International Group, Inc.24,243$202.0K0.00%––
Citadel Advisors LLC24,027$200.0K0.00%––
PDT Partners, LLC23,791$198.0K0.01%––
Delta Investment Management, LLC21,745$181.0K0.06%––
Engineers Gate Manager LP19,615$163.0K0.01%––
Sargent Bickham Lagudis LLC19,406$162.0K0.01%––
MetLife Investment Management16,729$139.4K0.00%––
Public Employees Retirement System of Ohio16,635$139.0K0.00%––
K.J. Harrison & Partners Inc15,000$125.0K0.02%––
Wells Fargo & Company14,909$124.0K0.00%––
Royal Bank of Canada14,939$124.0K0.00%––
Voya Investment Management LLC14,556$121.0K0.00%––
Captrust Financial Advisors13,375$111.0K0.00%––
Occudo Quantitative Strategies LP13,165$110.0K0.02%––
Heritage Investors Management Corp12,190$102.0K0.00%––
UBS Group AG11,261$94.0K0.00%––
ProShare Advisors LLC11,113$93.0K0.00%––
Parametric Portfolio Associates LLC10,673$89.0K0.00%––
Metropolitan Life Insurance Co10,346$86.2K0.00%––
Spire Wealth Management8,272$69.0K0.00%––
Group One Trading, L.P.7,973$66.0K0.00%––
American Portfolios Advisors7,500$62.5K0.00%––
Whittier Trust Co3,750$31.0K0.00%––
Legal & General Group Plc3,570$30.0K0.00%––
Citigroup Inc3,475$29.0K0.00%––
First Quadrant L P3,152$26.0K0.00%––
Ameritas Investment Partners, Inc.2,585$22.0K0.00%––
Tower Research Capital LLC (TRC)2,364$20.0K0.00%––
Morgan Stanley2,351$19.0K0.00%––
Advisor Group Holdings, Inc.1,587$13.0K0.00%––
Bank of Montreal1,414$12.0K0.00%––
Truvestments Capital LLC1,374$12.0K0.01%––
Sterling Investment Advisors, Ltd.65,000$8.00K0.00%––