Quantumsphere Acquisition Co

Q2 2026 vs Q3 2026

Comparing institutional holders between quarters

Compare Detailed Historical Funds Options Short Interest 13D/13G Peers Targeting Trading Summary Profile

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RLH Capital LLC

UNCHANGED

Shares184,900 from 184,900

Change0 (0%)

Value$13.9K (-$15.8K)

Filed 2026-11-09

Wolverine Asset Management LLC

DECREASED

Shares132,020 from 132,552

Change-532 (0%)

Value$8.0K (-$18.4K)

Filed 2026-11-02

Periscope Capital Inc.

UNCHANGED

Shares125,000 from 125,000

Change0 (0%)

Value$9.4K (-$10.7K)

Filed 2026-11-06

UBS Group AG

UNCHANGED

Shares16,027 from 16,027

Change0 (0%)

Value$962 (-$993)

Filed 2026-11-10

Harraden Circle Investments, LLC

N/A

Shares— from 993,926

Change-993,926 (-100%)

Value—

Toronto Dominion Bank

N/A

Shares— from 717,905

Change-717,905 (-100%)

Value—

Shaolin Capital Management LLC

N/A

Shares— from 479,379

Change-479,379 (-100%)

Value—

Rivernorth Capital Management, LLC

N/A

Shares— from 424,512

Change-424,512 (-100%)

Value—

Glazer Capital, LLC

N/A

Shares— from 420,536

Change-420,536 (-100%)

Value—

Polar Asset Management Partners Inc.

N/A

Shares— from 400,000

Change-400,000 (-100%)

Value—

Linden Advisors LP

N/A

Shares— from 400,000

Change-400,000 (-100%)

Value—

AQR Arbitrage LLC

N/A

Shares— from 324,248

Change-324,248 (-100%)

Value—

Highbridge Capital Management LLC

N/A

Shares— from 307,316

Change-307,316 (-100%)

Value—

HGC Investment Management Inc.

N/A

Shares— from 300,000

Change-300,000 (-100%)

Value—

Clear Street Group Inc.

N/A

Shares— from 222,380

Change-222,380 (-100%)

Value—

Cable Car Capital, LPA

N/A

Shares— from 174,801

Change-174,801 (-100%)

Value—

Hudson Bay Capital Management LP

N/A

Shares— from 150,000

Change-150,000 (-100%)

Value—

Radcliffe Capital Management, L.P.

N/A

Shares— from 150,000

Change-150,000 (-100%)

Value—

D. E. Shaw & Co., Inc.

N/A

Shares— from 125,000

Change-125,000 (-100%)

Value—

Heights Capital Management, Inc

N/A

Shares— from 106,968

Change-106,968 (-100%)

Value—

BNP Paribas Financial Markets

N/A

Shares— from 102,340

Change-102,340 (-100%)

Value—

Boothbay Fund Management, LLC

N/A

Shares— from 100,000

Change-100,000 (-100%)

Value—

Westchester Capital Management, LLC

N/A

Shares— from 100,000

Change-100,000 (-100%)

Value—

Schonfeld Strategic Advisors LLC

N/A

Shares— from 54,200

Change-54,200 (-100%)

Value—

Berkley W R Corp

N/A

Shares— from 24,108

Change-24,108 (-100%)

Value—

	Status
RLH Capital LLC	UNCHANGED	184,900	184,900	0	0%	$29.7K	$13.9K	-$15.8K	2026-11-09
Wolverine Asset Management LLC	DECREASED	132,020	132,552	-532	0%	$26.4K	$8.0K	-$18.4K	2026-11-02
Periscope Capital Inc.	UNCHANGED	125,000	125,000	0	0%	$20.1K	$9.4K	-$10.7K	2026-11-06
UBS Group AG	UNCHANGED	16,027	16,027	0	0%	$2.0K	$962	-$993	2026-11-10
Harraden Circle Investments, LLC	N/A	—	993,926	-993,926	-100%	$197.8K	—	—	—
Toronto Dominion Bank	N/A	—	717,905	-717,905	-100%	$142.9K	—	—	—
Shaolin Capital Management LLC	N/A	—	479,379	-479,379	-100%	$95.4K	—	—	—
Rivernorth Capital Management, LLC	N/A	—	424,512	-424,512	-100%	$65.8K	—	—	—
Glazer Capital, LLC	N/A	—	420,536	-420,536	-100%	$68	—	—	—
Polar Asset Management Partners Inc.	N/A	—	400,000	-400,000	-100%	$64.3K	—	—	—
Linden Advisors LP	N/A	—	400,000	-400,000	-100%	$64.3K	—	—	—
AQR Arbitrage LLC	N/A	—	324,248	-324,248	-100%	$64.5K	—	—	—
Highbridge Capital Management LLC	N/A	—	307,316	-307,316	-100%	$52.2K	—	—	—
HGC Investment Management Inc.	N/A	—	300,000	-300,000	-100%	$59.7K	—	—	—
Clear Street Group Inc.	N/A	—	222,380	-222,380	-100%	$44.3K	—	—	—
Cable Car Capital, LPA	N/A	—	174,801	-174,801	-100%	$34.8K	—	—	—
Hudson Bay Capital Management LP	N/A	—	150,000	-150,000	-100%	$25.5K	—	—	—
Radcliffe Capital Management, L.P.	N/A	—	150,000	-150,000	-100%	$24.1K	—	—	—
D. E. Shaw & Co., Inc.	N/A	—	125,000	-125,000	-100%	$21.3K	—	—	—
Heights Capital Management, Inc	N/A	—	106,968	-106,968	-100%	$21.3K	—	—	—
BNP Paribas Financial Markets	N/A	—	102,340	-102,340	-100%	$16.4K	—	—	—
Boothbay Fund Management, LLC	N/A	—	100,000	-100,000	-100%	$16.1K	—	—	—
Westchester Capital Management, LLC	N/A	—	100,000	-100,000	-100%	$12.3K	—	—	—
Schonfeld Strategic Advisors LLC	N/A	—	54,200	-54,200	-100%	$8.7K	—	—	—
Berkley W R Corp	N/A	—	24,108	-24,108	-100%	$3.9K	—	—	—

Showing 25 of 25 institutions