QUANTUM CORP (QMCO): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in QMCO · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
9
13F filers
Aggregate Value
$35.4M
Across holders
Last Price
$29.18
2026-10-08
Sector
Information Technology
GICS
Quarterly fund activity9 increased0 reduced0 exited
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| OAKTREE CAPITAL MANAGEMENT LP CIK 0000949509 | Hedge Fund | 2.01M | $22.1M | 62.5% | 0.3% | Added | — | Q2 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 713K | $7.8M | 22.2% | 0.0% | Added | +$7.1M | Q2 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 155K | $1.7M | 4.8% | 0.0% | Added | — | Q2 2026 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 120K | $1.3M | 3.7% | 0.0% | Added | — | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 81K | $891K | 2.5% | 0.0% | Added | — | Q2 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 69K | $755K | 2.1% | 0.0% | Added | — | Q2 2026 |
| Squarepoint Ops LLC CIK 0001642575 | Hedge Fund | 34K | $372K | 1.1% | 0.0% | Added | — | Q2 2026 |
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 22K | $239K | 0.7% | 0.0% | Added | — | Q2 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 12K | $133K | 0.4% | 0.0% | Added | — | Q2 2026 |
Added
Hedge Fund
$22.1M· 62.5% of total· 0.3% port· 2.01M sh· — QoQ· Q2 2026
Added
Hedge Fund
$7.8M· 22.2% of total· 0.0% port· 713K sh· +$7.1M QoQ· Q2 2026
Added
Hedge Fund
$1.7M· 4.8% of total· 0.0% port· 155K sh· — QoQ· Q2 2026
Added
Hedge Fund
$1.3M· 3.7% of total· 0.0% port· 120K sh· — QoQ· Q2 2026
Added
Hedge Fund
$891K· 2.5% of total· 0.0% port· 81K sh· — QoQ· Q2 2026
Added
Hedge Fund
$755K· 2.1% of total· 0.0% port· 69K sh· — QoQ· Q2 2026
Added
Hedge Fund
$372K· 1.1% of total· 0.0% port· 34K sh· — QoQ· Q2 2026
Added
Hedge Fund
$239K· 0.7% of total· 0.0% port· 22K sh· — QoQ· Q2 2026
Added
Hedge Fund
$133K· 0.4% of total· 0.0% port· 12K sh· — QoQ· Q2 2026
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