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SONA Asset Management (US)’s Quantum Corp QMCO Stock Holding History

SONA Asset Management (US)’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 		$1.65M Buy
150,000
+79,908
+114% +$767K 0.03% 276
2026
Q1 		$333K Buy
+70,092
New +$423K 0.01% 291

Other funds holding QMCO

Alyeska Investment Group
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
OCM
Oaktree Capital Management Los Angeles, California $7.21B AUM 45.97% 1-Year Est. Return
Neuberger Berman Group
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
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
MHP
Manatuck Hill Partners Westport, Connecticut $302M AUM 117.41% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

SONA Asset Management (US)'s QMCO Position: Q2 2026 in Review

SONA Asset Management (US) increased its Quantum Corp (QMCO) stake by 114% in Q2 2026, buying an estimated $767K and bringing the position to 150,000 shares worth $1.65M. The position accounts for 0.03% of the portfolio, ranked #276.

SONA Asset Management (US) first reported a position in QMCO in Q1 2026 and has held it in 2 quarters since. 60 funds tracked by Wall St. Rank hold QMCO as of Q2 2026.

  • SONA Asset Management (US) held 150,000 shares of Quantum Corp worth $1.65M as of Q2 2026.
  • SONA Asset Management (US) bought 79,908 Quantum Corp shares in Q2 2026, an estimated $767K.
  • Quantum Corp made up 0.03% of SONA Asset Management (US)'s portfolio in Q2 2026, its #276 holding.
  • SONA Asset Management (US) first reported a position in Quantum Corp in Q1 2026 and has held it in 2 quarters since.
  • 60 funds tracked by Wall St. Rank held Quantum Corp as of Q2 2026.

Based on SONA Asset Management (US)'s 13F filing for Q2 2026, filed 14 Aug 2026.