Howard Marks’s Quantum Corp QMCO Stock Holding History

Howard Marks’s Portfolio QMCO Stock Details QMCO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$22.1M	Buy	+2,011,678	New	+$19.3M	0.31%	59

Other funds holding QMCO

Alyeska Investment Group Chicago, Illinois $38.9B AUM 28.51% 1-Year Est. Return

TSC

Two Seas Capital Rye, New York $5.05B AUM 164.99% 1-Year Est. Return

Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

PCM

Portolan Capital Management Boston, Massachusetts $2.67B AUM 169.09% 1-Year Est. Return

ACM

Ashford Capital Management Wilmington, Delaware $933M AUM 56.2% 1-Year Est. Return

Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

MHP

Manatuck Hill Partners Westport, Connecticut $302M AUM 117.41% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

CCM

Cinctive Capital Management New York $2.72B AUM 43.27% 1-Year Est. Return

Howard Marks's QMCO Position: Q2 2026 in Review

Howard Marks opened a new position in Quantum Corp (QMCO) in Q2 2026: 2,011,678 shares worth $22.1M. The stake represents 0.31% of the portfolio and ranks #59 among its holdings.

59 funds tracked by Wall St. Rank hold QMCO as of Q2 2026.

Howard Marks held 2,011,678 shares of Quantum Corp worth $22.1M as of Q2 2026.
Quantum Corp was a new Howard Marks position in Q2 2026.
Quantum Corp made up 0.31% of Howard Marks's portfolio in Q2 2026, its #59 holding.
59 funds tracked by Wall St. Rank held Quantum Corp as of Q2 2026.

Based on Oaktree Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.