LA
QUMS

Linden Advisors’s Quantumsphere Acquisition Corp QUMS Stock Holding History

Linden Advisors’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 		$4.09M Hold
400,000
– – 0.02% 309
2026
Q1 		$4.05M Hold
400,000
– – 0.02% 285
2025
Q4 		$4M Buy
+400,000
New +$3.99M 0.02% 259

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
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $6.07B AUM 34.81% 1-Year Est. Return
HCM
Highbridge Capital Management New York $4.11B AUM 26.03% 1-Year Est. Return

Linden Advisors's QUMS Position: Q2 2026 in Review

Linden Advisors held its Quantumsphere Acquisition Corp (QUMS) position steady in Q2 2026 at 400,000 shares worth $4.09M. The position accounts for 0.02% of the portfolio, ranked #309.

Linden Advisors first reported a position in QUMS in Q4 2025 and has held it in 3 quarters since. 27 funds tracked by Wall St. Rank hold QUMS as of Q2 2026.

  • Linden Advisors held 400,000 shares of Quantumsphere Acquisition Corp worth $4.09M as of Q2 2026.
  • Linden Advisors left its Quantumsphere Acquisition Corp share count unchanged in Q2 2026.
  • Quantumsphere Acquisition Corp made up 0.02% of Linden Advisors's portfolio in Q2 2026, its #309 holding.
  • Linden Advisors first reported a position in Quantumsphere Acquisition Corp in Q4 2025 and has held it in 3 quarters since.
  • 27 funds tracked by Wall St. Rank held Quantumsphere Acquisition Corp as of Q2 2026.

Based on Linden Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.