Stock Ownership/MOUNTAIN LAKE ACQUISIT CORP

MOUNTAIN LAKE ACQUISIT CORP: Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in MOUNTAIN LAKE ACQUISIT CORP. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders

13F filers

Aggregate Value

$734K

Across holders

Last Price

—

EOD close

Sector

—

GICS

Quarterly fund activity5 increased3 reduced1 exited

Full exits: Hudson Bay Capital Management LP

Institutional Holders of MOUNTAIN LAKE ACQUISIT CORP

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9 holders

Manager⇅	Type⇅	Shares⇅	Market Value▼	% of Total⇅	% of Portfolio⇅	Action⇅	QoQ Change⇅	Quarter⇅
Magnetar Financial LLC CIK 0001352851	Hedge Fund	775K	$220K	30.0%	0.0%	Reduced	$-64K	Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408	Hedge Fund	700K	$189K	25.8%	0.0%	Reduced	$-95K	Q2 2026
Verition Fund Management LLC CIK 0001454027	Hedge Fund	557K	$150K	20.5%	0.0%	Reduced	$-55K	Q2 2026
MOORE CAPITAL MANAGEMENT, LP CIK 0001448574	Hedge Fund	250K	$68K	9.2%	0.0%	Added	—	Q2 2026
SHAW D E & CO INC CIK 0001009207	Hedge Fund	163K	$42K	5.8%	0.0%	Unchanged	+$0	Q2 2026
Walleye Capital LLC CIK 0001758720	Hedge Fund	75K	$20K	2.8%	0.0%	Added	—	Q2 2026
Schonfeld Strategic Advisors LLC CIK 0001665241	Hedge Fund	75K	$20K	2.8%	0.0%	Added	—	Q2 2026
Sculptor Capital LP CIK 0001054587	Hedge Fund	52K	$14K	1.9%	0.0%	Added	—	Q2 2026
Parallax Volatility Advisers, L.P. CIK 0001521001	Hedge Fund	34K	$10K	1.3%	0.0%	Added	—	Q2 2026

Magnetar Financial LLCReduced

Hedge Fund

$220K· 30.0% of total· 0.0% port· 775K sh· $-64K QoQ· Q2 2026

ADAGE CAPITAL PARTNERS GP, L.L.C.Reduced

Hedge Fund

$189K· 25.8% of total· 0.0% port· 700K sh· $-95K QoQ· Q2 2026

Verition Fund Management LLCReduced

Hedge Fund

$150K· 20.5% of total· 0.0% port· 557K sh· $-55K QoQ· Q2 2026

MOORE CAPITAL MANAGEMENT, LPAdded

Hedge Fund

$68K· 9.2% of total· 0.0% port· 250K sh· — QoQ· Q2 2026

SHAW D E & CO INCUnchanged

Hedge Fund

$42K· 5.8% of total· 0.0% port· 163K sh· +$0 QoQ· Q2 2026

Walleye Capital LLCAdded

Hedge Fund

$20K· 2.8% of total· 0.0% port· 75K sh· — QoQ· Q2 2026

Schonfeld Strategic Advisors LLCAdded

Hedge Fund

$20K· 2.8% of total· 0.0% port· 75K sh· — QoQ· Q2 2026

Sculptor Capital LPAdded

Hedge Fund

$14K· 1.9% of total· 0.0% port· 52K sh· — QoQ· Q2 2026

Parallax Volatility Advisers, L.P.Added

Hedge Fund

$10K· 1.3% of total· 0.0% port· 34K sh· — QoQ· Q2 2026

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