STAK Inc. (STAK) COO discloses 1,500,000 Class B shares on Form 3

Rhea-AI Filing Summary

STAK Inc. filed an initial ownership report showing that Chief Operating Officer and 10% owner Gao Huyun beneficially owns 1,500,000 Class B Ordinary Shares. These shares are held indirectly through MT. Yang Holding Ltd., which is wholly owned by Gao. The filing reports holdings only and does not show any recent share purchases or sales.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Gao Huyun

Role Chief Operating Officer

Type	Security	Shares	Price	Value
holding	Class B Ordinary Shares	--	--	--

Holdings After Transaction: Class B Ordinary Shares — 1,500,000 shares (Indirect, By MT. Yang Holding Ltd.)

Footnotes (1)

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Understanding Insider Trading Forms →

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Gao Huyun

(Last) (First) (Middle)

BUILDING 11, 8TH FLOOR

NO. 6 BEITANGHE EAST ROAD

(Street)

CHANGZHOU F4 213000

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
03/17/2026

3. Issuer Name and Ticker or Trading Symbol
STAK Inc. [ STAK ]

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

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

5. If Amendment, Date of Original Filed (Month/Day/Year)

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class B Ordinary Shares	1,500,000	I	By MT. Yang Holding Ltd.(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The reported securities are directly held by MT. Yang Holding Ltd. The reporting person beneficially owns securities though her 100% shareholding of MT. Yang Holding Ltd.

	/s/ Gao Huyun	03/17/2026
	** 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 5 (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.

FAQ

What does Gao Huyun’s Form 3 filing for STAK mean?

The Form 3 shows existing ownership, not a new trade. It reports that COO and 10% owner Gao Huyun beneficially owns 1,500,000 Class B Ordinary Shares of STAK Inc., held indirectly through MT. Yang Holding Ltd., with no buy or sell transactions disclosed.

How many STAK Class B shares does Gao Huyun beneficially own?

The filing reports 1,500,000 Class B Ordinary Shares. These shares are shown as the total beneficially owned following the reported holdings entry and are held indirectly through MT. Yang Holding Ltd., which is wholly owned by Gao Huyun.

Is the STAK Form 3 a purchase or sale by Gao Huyun?

No, the Form 3 does not show a purchase or sale. It is an initial statement of beneficial ownership, listing 1,500,000 Class B Ordinary Shares held indirectly via MT. Yang Holding Ltd., with no transaction price or trade direction reported.

How are Gao Huyun’s STAK shares held according to the Form 3?

The shares are held indirectly through MT. Yang Holding Ltd. The footnote explains that MT. Yang Holding Ltd. directly holds the 1,500,000 Class B Ordinary Shares, and Gao beneficially owns them through her 100% shareholding in that entity.

What role does Gao Huyun have at STAK Inc. in this filing?

Gao Huyun is identified as Chief Operating Officer and a 10% owner. The Form 3 lists her officer title as Chief Operating Officer and marks her as a ten percent owner while disclosing her indirect beneficial ownership of 1,500,000 Class B Ordinary Shares.