Avalanche Treasury COO receives 200K-unit stock grant

Each RSU carries a contingent right to one Class A common share, with 1/4 vesting on each of four six-month anniversaries.

Rhea-AI Filing Summary

Avalanche Treasury Corp Chief Operating Officer Laine Mihalchick Moljo received a grant of 200,000 restricted stock units on September 28, 2026. On September 30, 2026, 18,569 Class A common shares were withheld by the issuer for tax withholding upon RSU vesting, at $1.90 per share. Each RSU represents a contingent right to receive one Class A common share.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Moljo Laine Mihalchick

Role Chief Operating Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock F2	18,569	$1.90	$35K
Grant/Award	Class A Common Stock F1	200,000	$0.00	$0.00

Holdings After Transaction: Class A Common Stock — 181,431 shares (Direct)

Footnotes (2)

1. F1. Represents a grant of restricted stock units ("RSUs") on September 28, 2026. The RSUs will vest 1/4 on each of the first four six-month anniversaries of October 1, 2025. Each RSU represents a contingent right to receive one share of Class A common stock.
2. F2. Represents shares of Class A Common Stock withheld by the Issuer to satisfy tax withholding upon the vesting of RSUs.

Key Figures

RSU grant: 200,000 restricted stock units Shares withheld: 18,569 shares Price per share: $1.90 per share +1 more

4 metrics

RSU grant 200,000 restricted stock units Granted September 28, 2026

Shares withheld 18,569 shares Withheld for tax withholding upon RSU vesting on September 30, 2026

Price per share $1.90 per share Withholding transaction on September 30, 2026

Vesting installment 1/4 of the RSUs At each of the first four six-month anniversaries of October 1, 2025

Key Terms

restricted stock units ("RSUs"), vesting, contingent right

3 terms

restricted stock units ("RSUs") financial

"grant of restricted stock units ("RSUs") on September 28, 2026"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

vesting financial

"tax withholding upon the vesting of RSUs"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

contingent right technical

"Each RSU represents a contingent right to receive one share"

FAQ

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

How many RSUs did AVAT's COO receive?

Laine Mihalchick Moljo received a grant of 200,000 restricted stock units on September 28, 2026.

Why were 18,569 AVAT shares withheld?

18,569 Class A common shares were withheld by the issuer for tax withholding upon RSU vesting on September 30, 2026, at $1.90 per share.

When do AVAT's RSUs vest?

The RSUs vest 1/4 on each of the first four six-month anniversaries of October 1, 2025. Each RSU represents a contingent right to receive one share of Class A common stock.

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

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Available on EDGAR 09/30/2026 - 06:34 PM Accepted by SEC EDGAR 09/30/2026 - 06:34 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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

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^*

Moljo Laine Mihalchick

(Last) (First) (Middle)

AVALANCHE TREASURY COMPANY, LLC.

11 W. 42ND STREET, 2ND FLOOR

(Street)

NEW YORK NEW YORK 10036

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Avalanche Treasury Corp [ AVAT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/28/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	09/28/2026		A		200,000(1)	A	$0	200,000	D
Class A Common Stock	09/30/2026		F		18,569(2)	D	$1.9	181,431	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents a grant of restricted stock units ("RSUs") on September 28, 2026. The RSUs will vest 1/4 on each of the first four six-month anniversaries of October 1, 2025. Each RSU represents a contingent right to receive one share of Class A common stock.

2. Represents shares of Class A Common Stock withheld by the Issuer to satisfy tax withholding upon the vesting of RSUs.

	/s/ Laine Mihalchick Moljo	09/30/2026
	** Signature of Reporting Person	Date
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)