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SPAC director Lager shifts MLAC (MLAC) founder shares into 9,112 Pubco Class A

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Mountain Lake Acquisition Corp. director Jeffrey Todd Lager reported several share restructurings tied to the closing of a Business Combination on June 11, 2026. He surrendered 15,888 Class B ordinary shares to the company for no consideration and converted 9,112 Class B shares into 9,112 Class A shares.

Immediately afterward, 9,112 Class A ordinary shares were exchanged into 9,112 shares of Class A common stock of Avalanche Treasury Corporation (Pubco) in the SPAC Merger. Following these steps, Lager holds zero Class A and Class B ordinary shares of Mountain Lake Acquisition Corp. and instead holds Class A common stock of Pubco.

Positive

  • None.

Negative

  • None.

Insights

Transactions are SPAC-related restructurings moving holdings from MLAC into Pubco shares.

The filing shows Jeffrey Todd Lager completing technical steps linked to a Business Combination. He surrendered 15,888 Class B founder-type shares to Mountain Lake Acquisition Corp., then converted 9,112 remaining Class B shares into 9,112 Class A ordinary shares.

Those 9,112 Class A shares were then exchanged one-for-one into Pubco Class A common stock in the SPAC Merger. No cash prices are disclosed, and the transactions reallocate his position from the SPAC entity to the new combined company. This pattern is typical for SPAC closings and does not itself signal discretionary buying or selling.

Insider Lager Jeffrey Todd
Role null
Type Security Shares Price Value
Disposition Class B ordinary shares, par value $0.0001 per share 15,888 $0.00 --
Exercise Class B ordinary shares, par value $0.0001 per share 9,112 $0.00 --
Exercise Class A ordinary shares, par value $0.0001 per share 9,112 $0.00 --
Disposition Class A ordinary shares, par value $0.0001 per share 9,112 $0.00 --
Holdings After Transaction: Class B ordinary shares, par value $0.0001 per share — 9,112 shares (Direct, null); Class A ordinary shares, par value $0.0001 per share — 9,112 shares (Direct, null)
Footnotes (1)
  1. On June 11, 2026, in connection with the consummation of the transactions contemplated by the Business Combination Agreement dated October 1, 2025 (as amended on January 13, 2026 and March 17, 2026, the "Business Combination Agreement" and the transactions contemplated thereto, the "Business Combination"), by and among the Issuer, Avalanche Treasury Corporation, a Delaware corporation ("Pubco") and the other parties thereto, and certain Sponsor Support Agreement dated as of October 1, 2025, by and among the Issuer, Pubco and Mountain Lake Acquisition Sponsor LLC (the "Sponsor"), an aggregate of 15,888 Class B ordinary shares held by the Reporting Person were surrendered for cancellation by the Reporting Person to the Issuer for no consideration. As described in the registration statement on Form S-1 (File No. 333-281410) of 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. In connection with the consummation of the Business Combination, and immediately following the surrender, 9,112 Class B ordinary shares were converted into an aggregate of 9,112 Class A ordinary shares (the "Class B Conversion"). Following the Class B Conversion, the Reporting Person owns zero Class B ordinary shares. In connection with the SPAC Merger (as defined in the Business Combination Agreement), an aggregate of 9,112 Class A ordinary shares held by the Reporting Person were exchanged into an equal number of shares of Class A common stock, par value $0.01 per share, of Pubco. Following such transaction, the Reporting Person owns zero Class A ordinary shares.
Class B shares surrendered 15,888 shares Class B ordinary shares returned to issuer for no consideration in Business Combination
Class B converted to Class A 9,112 shares Class B ordinary shares automatically converted into Class A ordinary shares at Business Combination
Class A exchanged into Pubco 9,112 shares MLAC Class A ordinary shares exchanged into Pubco Class A common stock in SPAC Merger
MLAC Class A held after 0 shares Class A ordinary shares of Mountain Lake Acquisition Corp. owned after exchange
MLAC Class B held after 0 shares Class B ordinary shares of Mountain Lake Acquisition Corp. owned after surrender and conversion
Pubco Class A received 9,112 shares Class A common stock of Avalanche Treasury Corporation received in SPAC Merger
Business Combination Agreement financial
"in connection with the consummation of the transactions contemplated by the Business Combination Agreement dated October 1, 2025"
A business combination agreement is a detailed contract that lays out the terms for two companies to join together—covering price, how ownership will be split, the steps needed to close the deal, and what each side promises to do or avoid before closing. For investors it matters because the agreement determines potential changes in value, control, timing, and risk exposure—think of it like the playbook for a merger that shows who wins, who pays, and what could still derail the plan.
SPAC Merger financial
"In connection with the SPAC Merger (as defined in the Business Combination Agreement), an aggregate of 9,112 Class A ordinary shares"
A SPAC merger is when a private company combines with a SPAC, a publicly traded shell company created to find and buy a business, so the private company becomes publicly listed without a traditional initial public offering. Investors should care because this shortcut can speed up market access but often brings greater uncertainty about valuation, potential share dilution, and reliance on investor votes and future performance, which can increase stock volatility.
Founder Shares financial
"under the heading "Description of Securities--Founder Shares," the Class B ordinary shares will automatically convert"
Founder shares are the ownership stakes given to the people who start a company, often with extra voting power or protections compared with ordinary shares. For investors, they matter because founders’ control and incentives influence decisions about strategy, hiring, and whether the company sells or stays independent — like a family that keeps majority voting rights in a household decision. High founder ownership can mean stable leadership but also a risk that outside shareholders have less influence.
Class B ordinary shares financial
"an aggregate of 15,888 Class B ordinary shares held by the Reporting Person were surrendered for cancellation"
Class B ordinary shares are a type of ownership stake in a company that typically come with different voting rights or privileges compared to other share classes. For investors, they represent a way to hold part of the company’s value and influence its decisions, often with fewer voting rights than Class A shares. Understanding these shares helps investors assess their level of control and potential returns within a company.
Class A common stock financial
"were exchanged into an equal number of shares of Class A common stock, par value $0.01 per share, of Pubco"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
Sponsor Support Agreement financial
"and certain Sponsor Support Agreement dated as of October 1, 2025, by and among the Issuer, Pubco and Mountain Lake Acquisition Sponsor LLC"
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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
X
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Lager Jeffrey Todd

(Last)(First)(Middle)
C/O MOUNTAIN LAKE ACQUISITION CORP.
930 TAHOE BLVD STE 802 PMB 45

(Street)
INCLINE VILLAGE NEVADA 89451

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Mountain Lake Acquisition Corp. [ MLAC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/11/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Class A ordinary shares, par value $0.0001 per share06/11/2026M(2)9,112A(2)9,112D
Class A ordinary shares, par value $0.0001 per share06/11/2026D9,112D(3)0D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Class B ordinary shares, par value $0.0001 per share(1)06/11/2026D(1)15,888 (2) (2)Class A ordinary shares15,888(1)9,112D
Class B ordinary shares, par value $0.0001 per share(2)06/11/2026M(2)9,112 (2) (2)Class A ordinary shares9,112(2)0D
Explanation of Responses:
1. On June 11, 2026, in connection with the consummation of the transactions contemplated by the Business Combination Agreement dated October 1, 2025 (as amended on January 13, 2026 and March 17, 2026, the "Business Combination Agreement" and the transactions contemplated thereto, the "Business Combination"), by and among the Issuer, Avalanche Treasury Corporation, a Delaware corporation ("Pubco") and the other parties thereto, and certain Sponsor Support Agreement dated as of October 1, 2025, by and among the Issuer, Pubco and Mountain Lake Acquisition Sponsor LLC (the "Sponsor"), an aggregate of 15,888 Class B ordinary shares held by the Reporting Person were surrendered for cancellation by the Reporting Person to the Issuer for no consideration.
2. As described in the registration statement on Form S-1 (File No. 333-281410) of 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. In connection with the consummation of the Business Combination, and immediately following the surrender, 9,112 Class B ordinary shares were converted into an aggregate of 9,112 Class A ordinary shares (the "Class B Conversion"). Following the Class B Conversion, the Reporting Person owns zero Class B ordinary shares.
3. In connection with the SPAC Merger (as defined in the Business Combination Agreement), an aggregate of 9,112 Class A ordinary shares held by the Reporting Person were exchanged into an equal number of shares of Class A common stock, par value $0.01 per share, of Pubco. Following such transaction, the Reporting Person owns zero Class A ordinary shares.
/s/ Jeffrey T. Lager06/15/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Jeffrey Todd Lager report in this MLAC Form 4?

Jeffrey Todd Lager reported SPAC-related share restructurings, not open-market trades. He surrendered 15,888 MLAC Class B ordinary shares, converted 9,112 Class B into 9,112 Class A shares, then exchanged those into 9,112 Pubco Class A common shares in the Business Combination.

How many Mountain Lake Acquisition Corp. Class B shares were surrendered?

Lager surrendered 15,888 Class B ordinary shares of Mountain Lake Acquisition Corp. for cancellation. According to the filing, this occurred in connection with the Business Combination and Sponsor Support Agreement, with the shares returned to the issuer for no consideration as part of the closing mechanics.

How many MLAC Class B shares were converted into Class A shares?

The filing states that 9,112 Class B ordinary shares automatically converted into 9,112 Class A ordinary shares. This Class B Conversion occurred in connection with the consummation of the Business Combination, using the one-for-one conversion terms described in Mountain Lake’s registration statement on Form S-1.

What happened to Jeffrey Todd Lager’s MLAC Class A ordinary shares?

Lager’s 9,112 MLAC Class A ordinary shares were exchanged into 9,112 shares of Class A common stock of Avalanche Treasury Corporation (Pubco). This exchange occurred in connection with the SPAC Merger, leaving him with zero Class A ordinary shares of Mountain Lake Acquisition Corp. afterward.

Does Jeffrey Todd Lager still own Mountain Lake Acquisition Corp. shares after these transactions?

No. After the surrender, conversion, and exchange steps, the filing states that Lager owns zero Class B and zero Class A ordinary shares of Mountain Lake Acquisition Corp. His holdings are now represented by 9,112 shares of Class A common stock of Pubco instead.

Were these MLAC share transactions open-market buys or sells?

They were not open-market trades. The codes and footnotes describe issuer dispositions and derivative conversions linked to the SPAC Business Combination and SPAC Merger. Shares were surrendered, converted, and exchanged structurally, with no reported market purchase or sale prices involved.