WCMNY
QUMS

Westchester Capital Management (New York)’s Quantumsphere Acquisition Corp QUMS Stock Holding History

Westchester Capital Management (New York)’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
Q1 		$2.53M Hold
250,000
– – 0.11% 140
2025
Q4 		$2.5M Buy
+250,000
New +$2.49M 0.11% 136

Other funds holding QUMS

MSU
Mizuho Securities USA New York $6.2B AUM 35.46% 1-Year Est. Return
WAM
Wolverine Asset Management Chicago, Illinois $10.4B AUM 4.78% 1-Year Est. Return
WRBC
W.R. Berkley Corp Greenwich, Connecticut $1.86B AUM 14.44% 1-Year Est. Return
KIM
Karpus Investment Management Pittsford, New York $3.21B AUM 6.83% 1-Year Est. Return
SCM
Shaolin Capital Management Miami, Florida $2.71B AUM 64.83% 1-Year Est. Return
RCM
Rivernorth Capital Management West Palm Beach, Florida $2B AUM 0.66% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
LA
Linden Advisors New York $17.9B AUM 1.72% 1-Year Est. Return
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $5.01B AUM 35.27% 1-Year Est. Return

Westchester Capital Management (New York)'s QUMS Position: Q1 2026 in Review

Westchester Capital Management (New York) held its Quantumsphere Acquisition Corp (QUMS) position steady in Q1 2026 at 250,000 shares worth $2.53M. The position accounts for 0.11% of the portfolio, ranked #140.

Westchester Capital Management (New York) first reported a position in QUMS in Q4 2025 and has held it in 2 quarters since. 29 funds tracked by Wall St. Rank hold QUMS as of Q1 2026.

  • Westchester Capital Management (New York) held 250,000 shares of Quantumsphere Acquisition Corp worth $2.53M as of Q1 2026.
  • Westchester Capital Management (New York) left its Quantumsphere Acquisition Corp share count unchanged in Q1 2026.
  • Quantumsphere Acquisition Corp made up 0.11% of Westchester Capital Management (New York)'s portfolio in Q1 2026, its #140 holding.
  • Westchester Capital Management (New York) first reported a position in Quantumsphere Acquisition Corp in Q4 2025 and has held it in 2 quarters since.
  • 29 funds tracked by Wall St. Rank held Quantumsphere Acquisition Corp as of Q1 2026.

Based on Westchester Capital Management (New York)'s 13F filing for Q1 2026, filed 15 May 2026.