Quantumsphere Acquisition Corp.

QUMS institutional ownership changes in Q2 2026: 0 institutions opened or added positions, 6 trimmed or exited. QUMS (Quantumsphere Acquisition Corp.) is held by 9 institutional investors as of Q2 2026. Top institutional shareholders: Wolverine Asset Management LLC ($6.2M), D. E. Shaw & Co., Inc. ($4.2M), Linden Advisors LP ($4.1M). Institutions were selling, on balance.

9

Holders

$21.3M

Total Value

0% (6)

Consensus

0 buying - 6 selling

Fund holdings as of Jun 30, 2026

QU

Smart Money Verdict

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Institutional (13F)••

Insider (Form 4)••

Activist (13D/13G)••

Congressional (STOCK Act)••

Holder Quality

••

★★★★★

Elite

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★★★★

Strong

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★★★

Solid

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★★

Below

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★

Weak

Held by 9 funds

Who's Trading

Latest move

Source dates: Price Nov 6, 2026 · Insiders none · Activists Oct 6, 2026 · Congress none

ActivistActWAWolverine Asset Management, LLC3.0%Oct 6, 2026

ActivistActWRW. R. Berkley Corporation7.7%Aug 6, 2026

ActivistActHIHighbridge Capital Management, LLC0.0%Feb 17, 2026

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Top Holders

FundsInsidersCongressActivists

Holdings (9)History

AllNewIncreasedHeldDecreasedExitedFirst report

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
WAWolverine Asset Management LLC	Decreased	602,984(-0.2%)	$6.2M	0.1%	+2.04%	0
DED. E. Shaw & Co., Inc.	Unchanged	409,860	$4.2M	0.0%	+3.90%	0
LALinden Advisors LP	Unchanged	400,000	$4.1M	0.0%	+3.90%	0
Hudson Bay Capital Management LP	Unchanged	235,000	$2.4M	0.0%	+4.42%	0
Clear Street Group Inc.	Decreased	164,793(-5.8%)	$1.7M	0.0%	+3.90%	0
BNP Paribas Financial Markets	Unchanged	115,048	$1.2M	0.0%	+3.77%	0
Toronto-Dominion Bank	Decreased	100,000(-62.4%)	$1M	0.0%	+3.51%	0
Schonfeld Strategic Advisors LLC	Unchanged	55,000	$562,100	0.0%	+3.90%	0
Morgan Stanley	Decreased	53(-15.9%)	$542	0.0%	+3.30%	0
Two Sigma Investments, LP	Exited	0(-100.0%)	$357,145	0.0%	+2.10%	0
Virtu Financial LLC	Exited	0(-100.0%)	$226,000	0.0%	+2.41%	0

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QUQUMSQuantumsphere Acquisition Corp.

1M3M6M1Y3Y5Y

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Questions investors ask about QUMS

Who owns QUMS?

9 institutional investors held QUMS on June 30, 2026, led by Wolverine Asset Management LLC ($6.2M), D. E. Shaw & Co., Inc. ($4.2M) and Linden Advisors LP ($4.1M).

How many hedge funds hold QUMS?

9 institutional investors reported QUMS in their 13F filings for the quarter ended June 30, 2026, $21.3M in all.

Are institutions buying or selling QUMS?

Selling, on balance. In Q2 2026, 6 institutions trimmed or exited QUMS and 0 institutions opened or added to positions.

High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer