Quantum CORP (QMCO) 13F Filing Data & Analysis (Q2 2026)

QMCO ranks #5520 out of 37503 tracked stocks by institutional interest, inside the more closely watched half of our coverage.

QMCO is a disclosed holding of Howard Marks (Oaktree Capital Management), one of the tracked superinvestors on AlphaSMO — it makes up 0.3% of that fund's own 13F portfolio.

65 institutions disclose a position in QMCO, but none treat it as a major bet — even Manatuck Hill Partners, LLC, its most concentrated holder, allocates just 1.3% of its own portfolio to it.

Marshall Wace, LLP has added to its QMCO position for two straight quarters, increasing it by $7.7M to reach $7.8M today.

Barclays PLC has trimmed its QMCO position for two straight quarters, cutting it by $86.6K while still holding $5.0K.

QMCO is up 1.8% today, and institutions have been net buyers of $146.7M this quarter — today's price move and the underlying institutional flow are pointing the same direction.

QMCO reported a net loss of $239.1M over the trailing twelve months.

• Not yet profitable — net loss of $239.1M over the trailing twelve months
• Revenue grew 11.9% year over year
• Net income declined year over year, from -$114.0M to -$239.1M
• Operating cash flow was negative, using $37.9M in cash
• Current ratio of 0.55x — below the conventional 1.5x liquidity buffer