Skip to main content

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
AdvisorNet Financial, Inc6$00.00%––
Highlander Capital Management, LLC25$00.00%––
Berman Capital Advisors, LLC41$00.00%––
Cowa, LLC12$00.00%––
Ameritas Investment Company, LLC25$2080.00%––
Sowell Financial Services LLC115$1.00K0.00%––
Sterling Investment Advisors, Ltd.65,000$8.00K0.00%––
Bank of Montreal1,414$12.0K0.00%––
Truvestments Capital LLC1,374$12.0K0.01%––
Advisor Group Holdings, Inc.1,587$13.0K0.00%––
Morgan Stanley2,351$19.0K0.00%––
Tower Research Capital LLC (TRC)2,364$20.0K0.00%––
Ameritas Investment Partners, Inc.2,585$22.0K0.00%––
First Quadrant L P3,152$26.0K0.00%––
Citigroup Inc3,475$29.0K0.00%––
Legal & General Group Plc3,570$30.0K0.00%––
Whittier Trust Co3,750$31.0K0.00%––
American Portfolios Advisors7,500$62.5K0.00%––
Group One Trading, L.P.7,973$66.0K0.00%––
Spire Wealth Management8,272$69.0K0.00%––
Metropolitan Life Insurance Co10,346$86.2K0.00%––
Parametric Portfolio Associates LLC10,673$89.0K0.00%––
ProShare Advisors LLC11,113$93.0K0.00%––
UBS Group AG11,261$94.0K0.00%––
Heritage Investors Management Corp12,190$102.0K0.00%––
Occudo Quantitative Strategies LP13,165$110.0K0.02%––
Captrust Financial Advisors13,375$111.0K0.00%––
Voya Investment Management LLC14,556$121.0K0.00%––
Wells Fargo & Company14,909$124.0K0.00%––
Royal Bank of Canada14,939$124.0K0.00%––
K.J. Harrison & Partners Inc15,000$125.0K0.02%––
Public Employees Retirement System of Ohio16,635$139.0K0.00%––
MetLife Investment Management16,729$139.4K0.00%––
Sargent Bickham Lagudis LLC19,406$162.0K0.01%––
Engineers Gate Manager LP19,615$163.0K0.01%––
Delta Investment Management, LLC21,745$181.0K0.06%––
PDT Partners, LLC23,791$198.0K0.01%––
Citadel Advisors LLC24,027$200.0K0.00%––
American International Group, Inc.24,243$202.0K0.00%––
Kovack Advisors, Inc.24,550$205.0K0.03%––
Manufacturers Life Insurance Company, The24,917$208.0K0.00%––
Two Sigma Advisers, LP26,700$222.0K0.00%––
Brasada Capital Management, LP28,000$233.0K0.05%––
New York State Common Retirement Fund30,400$253.0K0.00%––
Highland Private Wealth Management31,723$264.0K0.04%––
Alpha Paradigm Partners, LLC31,652$264.0K0.10%––
Price T Rowe Associates Inc40,289$336.0K0.00%––
Rhumbline Advisers40,658$339.0K0.00%––
Barclays PLC43,887$366.0K0.00%––
Bank of America Corp44,160$368.0K0.00%––
Susquehanna International Group, LLP50,035$417.0K0.00%––
California Public Employees Retirement System60,762$506.0K0.00%––
California State Teachers Retirement System62,741$523.0K0.00%––
Premier Asset Management LLC63,389$528.0K0.09%––
Boothbay Fund Management, LLC64,594$538.0K0.03%––
Two Sigma Investments, LP67,785$565.0K0.00%––
First Midwest Bank Trust Division73,285$610.0K0.08%––
Algert Global LLC75,040$625.0K0.20%––
Panagora Asset Management Inc78,402$653.0K0.00%––
Union Square Park Capital Management, LLC80,000$666.0K0.38%––
Glaxis Capital Management, LLC86,550$721.0K0.78%––
Goldman Sachs Group Inc87,767$731.0K0.00%––
Millennium Management LLC89,213$743.0K0.00%––
Adirondack Research & Management Inc.90,590$755.0K0.89%––
Rovida Advisors Inc.91,022$755.0K0.04%––
White Pine Capital LLC96,083$800.0K0.25%––
Herald Investment Management Ltd99,273$822.0K0.14%––
LPL Financial LLC102,636$855.0K0.00%––
Bank of New York Mellon Corp104,528$870.0K0.00%––
Charles Schwab Investment Management Inc107,264$894.0K0.00%––
Boston Partners125,703$1.05M0.00%––
Squarepoint Ops LLC125,822$1.05M0.01%––
Marathon Capital Management138,425$1.15M0.30%––
Bridgeway Capital Management, LLC146,200$1.22M0.02%––
First Trust Advisors LP149,054$1.24M0.00%––
Nuveen Asset Management, LLC162,546$1.35M0.00%––
EAM Investors, LLC165,522$1.38M0.21%––
Paradigm Capital Management Inc200,000$1.67M0.09%––
Deutsche Bank AG208,094$1.73M0.00%––
Kennedy Capital Management, Inc.252,983$2.11M0.04%––
Arrowstreet Capital, Limited Partnership262,171$2.18M0.00%––
Calamos Advisors LLC265,736$2.21M0.01%––
Invesco Ltd.268,842$2.24M0.00%––
Jacobs Levy Equity Management, Inc273,655$2.28M0.02%––
Friess Associates LLC337,630$2.81M1.09%––
Eidelman Virant Capital363,000$3.13M1.27%––
King Luther Capital Management Corp409,200$3.41M0.02%––
AWM Investment Company, Inc.410,000$3.42M0.38%––
Northern Trust Corp443,085$3.69M0.00%––
Kepos Capital LP450,000$3.75M0.24%––
Portolan Capital Management, LLC468,947$3.91M0.31%––
State Street Corp507,535$4.23M0.00%––
JPMorgan Chase & Co723,395$6.03M0.00%––
Heartland Advisors Inc750,000$6.25M0.39%––
Geode Capital Management, LLC816,733$6.80M0.00%––
Roumell Asset Management, LLC901,518$7.51M10.86%––
Pacific Ridge Capital Partners, LLC919,831$7.66M1.45%––
Deep Field Asset Management LLC977,005$8.14M5.47%––
Ophir Asset Management Pty Ltd1,350,658$10.8M2.18%––
TCW Group Inc2,262,290$13.8M0.13%––