Apex Treasury (APXT) director reports holding 30,000 Class B shares

Rhea-AI Filing Summary

Apex Treasury Corp director Mikulecky David reported his holdings of Class B Ordinary Shares. The filing shows he holds 30,000 Class B Ordinary Shares, which are automatically convertible into 30,000 Class A Ordinary Shares on a one-for-one basis at the company’s initial business combination or earlier at his option.

The Class B shares have no expiration date and are subject to potential anti-dilution adjustments as described in the company’s registration statement. The entry reflects a holding, not a new purchase or sale.

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

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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^*

Mikulecky David

(Last) (First) (Middle)

C/O APEX TREASURY CORPORATION

2035 REGATTA DRIVE

(Street)

VERO BEACH FLORIDA 32963

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Apex Treasury Corp [ APXT ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/09/2026

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

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
Class B Ordinary Shares	(1)							(1)	(1)	Class A Ordinary Shares	30,000		30,000	D

Explanation of Responses:

1. The Class B Ordinary Shares are automatically convertible into the Issuer's Class A Ordinary Shares at the time of the Issuer's initial business combination, or earlier at the option of the holder thereof, on a one-for-one basis, subject to adjustment pursuant to certain anti-dilution rights, and have no expiration date, as described under the heading "Description of Securities" in the Issuer's registration statement on Form S-1 (File No. 333-289485).

Remarks:

On March 9, 2026, David Mikulecky resigned as a director of the Issuer. As a result, the reporting person is no longer subject to Section 16 in connection with his transactions in the securities of the Issuer and therefore will no longer report any such transactions on Form 4 or Form 5.

	/s/ Jordan Leon, Attorney-in-Fact for David Mikulecky	03/20/2026
	** 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)

FAQ

What did Apex Treasury Corp (APXT) director Mikulecky David report in this Form 4?

He reported his holding of 30,000 Class B Ordinary Shares. These shares are automatically convertible into Class A Ordinary Shares and represent an existing position rather than a new purchase or sale.

How many Apex Treasury (APXT) Class B shares does the director hold after this filing?

The director holds 30,000 Class B Ordinary Shares after the reported holding. These are directly owned and correspond to 30,000 underlying Class A Ordinary Shares on a one-for-one conversion basis.

Are there any buy or sell transactions in this Apex Treasury (APXT) Form 4?

No buy or sell transactions are shown in this Form 4. The entry is classified as a holding, with no reported acquisition or disposition of Apex Treasury Corp shares in this filing.

How are APXT Class B Ordinary Shares treated relative to Class A shares?

Each Class B Ordinary Share is automatically convertible into one Class A Ordinary Share. Conversion occurs at Apex Treasury Corp’s initial business combination or earlier at the holder’s option, with anti-dilution adjustments possible.

Do Apex Treasury (APXT) Class B Ordinary Shares have an expiration date?

The Class B Ordinary Shares reported in this Form 4 have no expiration date. They remain outstanding until converted into Class A Ordinary Shares or otherwise adjusted under the terms described in the company’s registration statement.