Paul Grinberg - 16 Mar 2026 Form 4 Insider Report for Mountain Lake Acquisition Corp. II (MLAAU)

Role: CEO, Director, 10%+ Owner
Signature: /s/ Paul Grinberg
Issuer symbol: MLAAU
Transactions as of: 16 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 18 Mar 2026, 19:39:28 UTC
Previous filing: 30 Jan 2026
SEC: View on sec.gov

Reporting Owners (3)

Name	Relationship	Address	Signature	Signature date	CIK
Grinberg Paul	CEO, Director, 10%+ Owner	930 TAHOE BLVD STE 802 PMB 45, INCLINE VILLAGE	/s/ Paul Grinberg	18 Mar 2026	0001303829
MOUNTAIN LAKE ACQUISITION SPONSOR II LLC	10%+ Owner	930 TAHOE BLVD STE 802 PMB 45, INCLINE VILLAGE	/s/ Paul Grinberg, Managing Member of Mountain Lake Acquisition Sponsor II LLC	18 Mar 2026	0002095442
Horlick Douglas	CFO, Director, 10%+ Owner	930 TAHOE BLVD STE 802 PMB 45, INCLINE VILLAGE	/s/ Douglas Horlick	18 Mar 2026	0001844909

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MLAAU	Class B Ordinary Shares	Other		-6,000	-0.05%	$0.000000^*	12,000,000	16 Mar 2026	Class A Ordinary Shares	6,000		Direct	F1, F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	As described in the registration statement on Form S-1 (File No. 333-291833) of Mountain Lake Acquisition Corp. II (the "Issuer") under the heading "Description of Securities - Founder Shares," the Class B ordinary shares will automatically convert into Class A ordinary shares at the time of the Issuer's initial business combination, or at any time prior to the Issuer's initial business combination, at the option of the holder, on a one-for-one basis, subject to certain adjustments. The Class B ordinary shares have no expiration date.
F2	As contemplated in connection with the initial public offering of the Issuer, 6,000 Class B ordinary shares of the Issuer held by Mountain Lake Acquisition Sponsor II LLC (the "Sponsor") were returned to the Issuer for no consideration and cancelled because the underwriters' over-allotment option was not exercised in full.
F3	Paul Grinberg and Douglas Horlick are the managing members of the Sponsor and hold voting and investment discretion with respect to the Class B ordinary shares held of record by the Sponsor. As such, Messrs. Grinberg and Horlick may be deemed to have beneficial ownership of the securities held of record by the Sponsor. Messrs. Grinberg and Horlick disclaim any beneficial ownership except to the extent of their pecuniary interest therein.