Clear Street’s Quantumsphere Acquisition Corp QUMS Stock Holding History

Clear Street’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	$1.68M	Sell	164,793 -10,208	-6%	-$104K	﹤0.01%	312
2026 Q1	$1.77M	Sell	175,001 -249,761	-59%	-$2.52M	0.01%	249
2025 Q4	$4.25M	Buy	424,762 +423,363	+30,262%	+$4.22M	0.02%	117
2025 Q3	$13.9K	Buy	+1,399	New	+$13.9K	﹤0.01%	665

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 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

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

Clear Street's QUMS Position: Q2 2026 in Review

Clear Street reduced its Quantumsphere Acquisition Corp (QUMS) stake by 5.8% in Q2 2026, selling an estimated $104K and leaving 164,793 shares worth $1.68M. The position accounts for ﹤0.01% of the portfolio, ranked #312.

Clear Street first reported a position in QUMS in Q3 2025 and has held it in 4 quarters since. The position peaked at $4.25M in Q4 2025. 27 funds tracked by Wall St. Rank hold QUMS as of Q2 2026.

Clear Street held 164,793 shares of Quantumsphere Acquisition Corp worth $1.68M as of Q2 2026.
Clear Street sold 10,208 Quantumsphere Acquisition Corp shares in Q2 2026, an estimated $104K.
Quantumsphere Acquisition Corp made up ﹤0.01% of Clear Street's portfolio in Q2 2026, its #312 holding.
Clear Street first reported a position in Quantumsphere Acquisition Corp in Q3 2025 and has held it in 4 quarters since.
Clear Street's Quantumsphere Acquisition Corp position peaked at $4.25M in Q4 2025.
27 funds tracked by Wall St. Rank held Quantumsphere Acquisition Corp as of Q2 2026.

Based on Clear Street's 13F filing for Q2 2026, filed 12 Aug 2026.