QMCO Institutional Ownership
Top institutional (13F) holders of QMCO and activist (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
26
Institutional value
$67.76M
Top holder
OAKTREE CAPITAL MANAGEMENT LP
Couldn’t find the data you were looking for?
We haven’t added QUANTUM CORP /DE/’s filings yet. We add companies and filings all the time.
Track QMCO and we’ll email you the moment its filings are in, free and with no account. Or create a free account to request coverage.
Top holders
| Holder | Filed | Value |
|---|---|---|
| OAKTREE CAPITAL MANAGEMENT LPinvestment advisor | Aug 14, 2026 | $22.13M |
| Neuberger Berman Group LLCinvestment advisor | Aug 13, 2026 | $12.8M |
| MARSHALL WACE, LLPinvestment advisor | Aug 13, 2026 | $7.84M |
| Vanguard Capital Managementinvestment advisor | Aug 13, 2026 | $6.66M |
| BlackRock, Inc.holding company | Aug 7, 2026 | $3M |
| JANE STREET GROUP, LLCholding company | Aug 14, 2026 | $2.29M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPinvestment advisor | Aug 14, 2026 | $2.2M |
| BANK OF AMERICA CORP /DE/investment advisor | Aug 14, 2026 | $1.87M |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | Aug 12, 2026 | $1.81M |
| RENAISSANCE TECHNOLOGIES LLCinvestment advisor | Aug 13, 2026 | $1.7M |
| CITADEL ADVISORS LLCinvestment advisor | Sep 1, 2026 | $1.5M |
| STATE STREET CORPORATIONholding company | Sep 22, 2026 | $835.1K |
| Man Group plcinvestment advisor | Aug 14, 2026 | $754.5K |
| UBS Group AGinvestment advisor | Aug 13, 2026 | $507.2K |
| NORTHERN TRUST CORPinvestment advisor | Aug 13, 2026 | $365.4K |
| T. Rowe Price Associates, Inc.investment advisor | Aug 14, 2026 | $276K |
| MILLENNIUM MANAGEMENT LLCinvestment advisor | Aug 14, 2026 | $239.3K |
| GOLDMAN SACHS GROUP INCinvestment advisor | Aug 14, 2026 | $210.7K |
| MORGAN STANLEYinvestment advisor | Aug 13, 2026 | $170.4K |
| CITIGROUP INCinvestment advisor | Aug 3, 2026 | $158.7K |
| Schonfeld Strategic Advisors LLCinvestment advisor | Aug 14, 2026 | $132.6K |
| WELLS FARGO & COMPANY/MNinvestment advisor | Aug 14, 2026 | $124.3K |
| Invesco Ltd.holding company | Aug 14, 2026 | $119.2K |
| JPMORGAN CHASE & COholding company | Aug 12, 2026 | $43.6K |
| ROYAL BANK OF CANADAinvestment advisor | Aug 14, 2026 | $8K |
Never miss a QMCO filing.
Get an email when QMCO files its next 8-K, Form 4, 10-K or 10-Q with the SEC. Free, no account needed.
Free foreverNo account requiredOne-click unsubscribe
Source: SEC EDGAR Schedule 13D / 13G and 13F filings.