QMCO QUANTUM CORP /DE/: institutional ownership and insider trading
70 funds reported holding $190M of QUANTUM CORP /DE/ in their latest 13F filings; in Q2 2026 funds net bought $148M, with 33 new positions and 8 funds selling out; over the last 12 months insiders bought $0 and sold $84.7K on the open market; over its last four quarters it reported revenue of $296M and net income of −$239M.
QMCO revenue and earnings
- Quarter ended Jun 30, 2026: revenue $80.8M, net income −$155M, EPS -7.06
- Quarter ended Mar 31, 2026: revenue $78.0M, net income −$9.54M, EPS -0.58
- Quarter ended Dec 31, 2025: revenue $74.6M, net income −$27.8M, EPS -2.03
- Quarter ended Sep 30, 2025: revenue $62.7M, net income −$46.5M, EPS -3.49
Famous investors holding QMCO
- Howard Marks (Oaktree Capital Management): $22.1M, 0.3% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $1.70M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $1.50M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $239K, 0.0% of the portfolio
Largest institutional holders of QMCO
- Two Seas Capital LP — $47.3M
- Alyeska Investment Group, L.P. — $29.2M
- OAKTREE CAPITAL MANAGEMENT LP — $22.1M
- Neuberger Berman Group LLC — $12.8M
- Portolan Capital Management, LLC — $11.2M
- ASHFORD CAPITAL MANAGEMENT INC — $10.6M
- MARSHALL WACE, LLP — $7.84M
- VANGUARD CAPITAL MANAGEMENT LLC — $6.66M
- VANGUARD GROUP INC — $4.03M
- Manatuck Hill Partners, LLC — $3.85M
Recent QMCO insider trades
- Aug 3, 2026: Craythorne Anthony sold 1,478 shares ($15.9K)
- Jul 2, 2026: Meyrath Hugues sold 6,232 shares ($65.5K)
- Jul 2, 2026: Nash Laura A. sold 260 shares ($2.73K)
- Apr 2, 2026: Nash Laura A. sold 109 shares ($593)
5%+ owners
- JOHN FICHTHORN: 40.0% (Schedule 13D/A, filed Jun 8, 2026)
- Alyeska Investment Group, L.P.: 6.7% (Schedule 13G, filed Aug 14, 2026)
- Two Seas Capital LP: 6.3% (Schedule 13G, filed Aug 14, 2026)
- Oaktree Capital Management LP: 5.1% (Schedule 13G, filed Aug 10, 2026)
Who owns the most QMCO stock?
The largest institutional holders of QUANTUM CORP /DE/ in the latest 13F filings are Two Seas Capital LP ($47.3M), Alyeska Investment Group, L.P. ($29.2M), OAKTREE CAPITAL MANAGEMENT LP ($22.1M).
Are insiders buying or selling QMCO?
Over the last 12 months insiders bought $0 and sold $84.7K of QUANTUM CORP /DE/ stock on the open market (SEC Form 4).
Which famous investors own QMCO?
Howard Marks, Renaissance Technologies, Ken Griffin, Izzy Englander.
What was QMCO's revenue last quarter?
QUANTUM CORP /DE/ reported revenue of $80.8M for the quarter ended June 30, 2026, with net income of −$155M.
Which ETFs hold QMCO?
1 ETFs and mutual funds hold it among their top 100 positions, including GARY.