HCM
QUMS

Highbridge Capital Management’s Quantumsphere Acquisition Corp QUMS Stock Holding History

Highbridge Capital Management’s Portfolio QUMS Stock Details QUMS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$3.87M Buy
377,607
+256,529
+212% +$2.61M 0.09% 156
2026
Q1 		$1.23M Buy
+121,078
New +$1.22M 0.04% 139
2025
Q4 		– Sell
-600,000
Closed -$5.98M – 351
2025
Q3 		$5.98M Buy
+600,000
New +$5.98M 0.26% 72

Other funds holding QUMS

WRBC
W.R. Berkley Corp Greenwich, Connecticut $2.18B AUM 13.58% 1-Year Est. Return
MSU
Mizuho Securities USA New York $6.2B AUM 35.46% 1-Year Est. Return
WAM
Wolverine Asset Management Chicago, Illinois $11.4B AUM 5.65% 1-Year Est. Return
KIM
Karpus Investment Management Pittsford, New York $3.48B AUM 10.49% 1-Year Est. Return
RCM
Rivernorth Capital Management West Palm Beach, Florida $2.1B AUM 2.15% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
SCM
Shaolin Capital Management Miami, Florida $2.1B AUM 64.05% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.07B AUM 78.71% 1-Year Est. Return
LA
Linden Advisors New York $19.3B AUM 1.47% 1-Year Est. Return
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $6.07B AUM 34.81% 1-Year Est. Return

Highbridge Capital Management's QUMS Position: Q2 2026 in Review

Highbridge Capital Management increased its Quantumsphere Acquisition Corp (QUMS) stake by 212% in Q2 2026, buying an estimated $2.61M and bringing the position to 377,607 shares worth $3.87M. The position accounts for 0.09% of the portfolio, ranked #156.

Highbridge Capital Management first reported a position in QUMS in Q3 2025 and has held it in 3 quarters since. The position peaked at $5.98M in Q3 2025. 27 funds tracked by Wall St. Rank hold QUMS as of Q2 2026.

  • Highbridge Capital Management held 377,607 shares of Quantumsphere Acquisition Corp worth $3.87M as of Q2 2026.
  • Highbridge Capital Management bought 256,529 Quantumsphere Acquisition Corp shares in Q2 2026, an estimated $2.61M.
  • Quantumsphere Acquisition Corp made up 0.09% of Highbridge Capital Management's portfolio in Q2 2026, its #156 holding.
  • Highbridge Capital Management first reported a position in Quantumsphere Acquisition Corp in Q3 2025 and has held it in 3 quarters since.
  • Highbridge Capital Management's Quantumsphere Acquisition Corp position peaked at $5.98M in Q3 2025.
  • 27 funds tracked by Wall St. Rank held Quantumsphere Acquisition Corp as of Q2 2026.

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