QUANTUM CORP (QMCO) Institutional Ownership and Insiders Activity
QUANTUM CORP (QMCO) is widely held by institutional investors, with 69 firms reporting positions valued at approximately $166.62M based on SEC Form 13F filings for the quarter ended June 30, 2026.
Two Seas Capital Lp is the largest disclosed holder, reporting approximately $47.29M in QMCO holdings in its latest filing.
Recent insider activity includes 7 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.
Institutional Holders
69
Total Reported Value
$166.62M
Largest Holder
Two Seas Capital Lp
Largest Position
$47.29M
Insider Transactions (90d)
7
Latest Filing Quarter
Q2 2026
New Institutional Positions
31
Funds Exiting Positions
8
Top Institutional Owners
View allInvestorReported Balance
- Two Seas Capital Lp$47.29M
- Alyeska Investment Group, L.P.$29.19M
- Oaktree Capital Management$22.13M
- Portolan Capital Management, Llc$11.22M
- Ashford Capital Management Inc$10.55M
Related QMCO Institutional Insights:
- QMCO 13F Institutional Holders
- QMCO Superinvestors
- QMCO Institutional Ownership Changes
- Technology Sector Institutional Ownership
- Technology Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Technology Stocks By Institutional Investors
- Most Sold Technology Stocks By Institutional Investors
- QMCO Insider Trading & SEC Form 4 Activity
- QMCO Articles
- Top Institutional Investor Stock Rankings