Aristeia reports 5.91% stake in MLAA

Aristeia Capital, L.L.C. reports beneficial ownership of 2,186,394 units of Mountain Lake Acquisition Corp. II.

Rhea-AI Filing Summary

Aristeia Capital, L.L.C. reports beneficial ownership of 2,186,394 units of Mountain Lake Acquisition Corp. II. The filing states these units represent 5.91% of the class based on March 20, 2026 outstanding shares of 36,980,000. The Schedule 13G is signed by Andrew B. David on 05/14/2026.

Insights

Institutional Ownership Analyst

Large passive holder disclosure: Aristeia shows a 5.91% stake in MLAA.

Aristeia Capital reports beneficial ownership of 2,186,394 units, representing 5.91% of the class using the issuer's outstanding share count as of March 20, 2026. The filing is a standard Schedule 13G disclosure for an institutional holder.

Timing and intent qualifiers typical to Schedule 13G are not detailed in the excerpt; subsequent filings would show any change in status. Holdings above the 5% threshold can affect voting blocs but the excerpt does not state any plans to buy or sell.

Key Figures

Beneficial ownership: 2,186,394 units Percent of class: 5.91% Shares outstanding (used): 36,980,000 shares

3 metrics

Beneficial ownership 2,186,394 units Amount beneficially owned reported in Schedule 13G

Percent of class 5.91% Calculated using outstanding shares as of <date>March 20, 2026</date>

Shares outstanding (used) 36,980,000 shares Issuer's reported outstanding shares as of <date>March 20, 2026</date>

Key Terms

Schedule 13G, beneficially owned, Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant

3 terms

Schedule 13G regulatory

"The Reporting Person may be deemed the beneficial owner of 2,186,394 Units"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

beneficially owned regulatory

"Amount beneficially owned: 2,186,394 The Reporting Person may be deemed the beneficial owner"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant financial

"Title of class of securities: Units, each consisting of one Class A ordinary share"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does Aristeia Capital hold in MLAA?

Aristeia Capital beneficially owns 2,186,394 units, representing 5.91% of the class. This percentage uses the issuer's reported outstanding share count of 36,980,000 as of March 20, 2026.

How is the 5.91% ownership percentage calculated?

The percentage equals 2,186,394 divided by 36,980,000, the number of shares outstanding reported in the issuer's 10-K as of March 20, 2026. The filing provides that exact division and result.

Does the Schedule 13G indicate voting or disposition power?

Yes. The filing states Aristeia has sole voting and sole dispositive power2,186,394 units. Shared voting and dispositive power are reported as 0 in the excerpt.

Who signed the Schedule 13G for Aristeia Capital?

The Schedule 13G is signed by Andrew B. David, identified as Chief Operating Officer of Aristeia Capital, L.L.C., with a signature date of 05/14/2026 on the provided excerpt.

Does this filing say whether Aristeia intends to buy or sell MLAA shares?

The excerpt does not state any purchase or sale intent. It reports current beneficial ownership and voting/dispositive powers; it does not include language about future trading plans or intent in the provided text.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/14/2026 - 09:07 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

MOUNTAIN LAKE ACQUISITION CORP. II

(Name of Issuer)

Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant

(Title of Class of Securities)

G6301L125

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): G6301L125

1

Names of Reporting Persons

Aristeia Capital, L.L.C.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 2,186,394.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 2,186,394.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,186,394.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.91 %

12

Type of Reporting Person (See Instructions)

IA, OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: MOUNTAIN LAKE ACQUISITION CORP. II
(b)	Address of issuer's principal executive offices: 930 Tahoe Blvd, STE 802 PMB 45, Incline Village, NV 89451
Item 2.
(a)	Name of person filing: Aristeia Capital, L.L.C.
(b)	Address or principal business office or, if none, residence: One Greenwich Plaza, Suite 300, Greenwich, CT 06830
(c)	Citizenship: Delaware
(d)	Title of class of securities: Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant
(e)	CUSIP Number(s): G6301L125
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 2,186,394 The Reporting Person may be deemed the beneficial owner of 2,186,394 Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant, which is approximately 5.91% of the outstanding shares. This percentage was determined by dividing 2,186,394 by 36,980,000, which is the number of shares outstanding as of March 20, 2026, as reported in the Issuer's 10-K filed with the SEC on March 20, 2026.
(b)	Percent of class: 5.91%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 2,186,394
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 2,186,394
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Aristeia Capital, L.L.C.

Signature:	/s/ Andrew B. David
Name/Title:	Andrew B. David / Chief Operating Officer, Aristeia Capital, L.L.C.
Date:	05/14/2026