Pinnacle Acquisition Sponsor Surrenders 750K Shares

The sponsor's reported post-transaction position was 5,000,000 Class B ordinary shares.

Rhea-AI Filing Summary

Pinnacle Acquisition Corp (symbol: PNAQ) is the issuer of record for a Form 4 filing submitted to the SEC. Hudson Steven Kenneth reported disposition transactions in this Form 4 filing.

Pinnacle Acquisition Corp (PNAQ) reports that its sponsor, PAC Sponsor, LLC, surrendered 750,000 Class B Ordinary Shares to the issuer for no consideration on September 21, 2026. The sponsor's reported position following the transaction was 5,000,000 Class B Ordinary Shares. Steven K. Hudson, Pinnacle Acquisition Corp's Chief Executive Officer and a co-managing member of the sponsor, is identified as the reporting person.

Insider Trade Summary

Other: 750,000 shares

Other 1 txn

Insider Hudson Steven Kenneth

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Other	Class B Ordinary Shares F1, F2, F3	750,000	--	--

Holdings After Transaction: Class B Ordinary Shares — 5,000,000 contracts (Indirect, By PAC Sponsor, LLC)

Footnotes (3)

1. F1. As described in the Registration Statement on Form S-1 (File No. 333-297618) of Pinnacle Acquisition Corporation (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.
2. F2. As contemplated in connection with the initial public offering of the Issuer, as a result of the underwriters choice of not to exercise of the over-allotment option, 750,000 Class B Ordinary Shares were surrendered by PAC Sponsor, LLC (the "Sponsor") to the Issuer for no consideration.
3. F3. Represents shares held by the Sponsor. Steven K. Hudson and AVR Capital Holdings, LLC, an affiliate of Andrew Rechtschaffen, are the co-managing members of the Sponsor and control the management of the Sponsor, including the exercise of voting and investment discretion over the securities held by the Sponsor.

Key Figures

Class B Ordinary Shares surrendered: 750,000 shares Sponsor's reported post-transaction position: 5,000,000 Class B Ordinary Shares Conversion ratio: One-for-one

3 metrics

Class B Ordinary Shares surrendered 750,000 shares Surrendered by PAC Sponsor, LLC on September 21, 2026, for no consideration

Sponsor's reported post-transaction position 5,000,000 Class B Ordinary Shares Following the September 21, 2026 transaction

Conversion ratio One-for-one Class B ordinary shares convert into Class A ordinary shares

Key Terms

over-allotment option, initial business combination, one-for-one basis

3 terms

over-allotment option financial

"not to exercise of the over-allotment option"

An over-allotment option is a special agreement that allows underwriters to sell more shares than initially planned if demand is high. Think of it like a retailer offering extra units of a popular product to meet additional customer interest. This option helps ensure the full sale is completed and can also give investors extra shares if they want more.

initial business combination financial

"at the time of the Issuer's initial business combination"

An initial business combination is the deal in which a special-purpose acquisition company (SPAC) merges with or acquires an operating business to bring that business onto public markets. Think of the SPAC as an empty shell that raises money from investors, then uses that cash to buy a private company—this transaction turns the private company into a public one and often changes its ownership, valuation, and access to capital, so investors should watch for shifts in risk, future growth prospects, and shareholder rights.

one-for-one basis financial

"on a one-for-one basis, subject to certain adjustments"

FAQ

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

How many shares did PNAQ's sponsor surrender?

PAC Sponsor, LLC surrendered 750,000 Class B Ordinary Shares on September 21, 2026, for no consideration. Its reported position following the transaction was 5,000,000 Class B Ordinary Shares.

How do PNAQ's Class B shares convert?

The Class B ordinary shares automatically convert into Class A ordinary shares at the issuer's initial business combination, or earlier at the holder's option, on a one-for-one basis, subject to certain adjustments. The shares have no expiration date.

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

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Available on EDGAR 09/23/2026 - 04:33 PM Accepted by SEC EDGAR 09/23/2026 - 04:32 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^*

Hudson Steven Kenneth

(Last) (First) (Middle)

C/O PINNACLE ACQUISITION CORPORATION

375 SOUTH COUNTY ROAD, SUITE 220

(Street)

PALM BEACH FLORIDA 33480

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Pinnacle Acquisition Corp [ PNAQ ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/21/2026

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)	09/21/2026		J(2)			750,000(2)	(1)	(1)	Class A Ordinary Shares	750,000	(2)	5,000,000	I(3)	By PAC Sponsor, LLC

Explanation of Responses:

1. As described in the Registration Statement on Form S-1 (File No. 333-297618) of Pinnacle Acquisition Corporation (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.

2. As contemplated in connection with the initial public offering of the Issuer, as a result of the underwriters choice of not to exercise of the over-allotment option, 750,000 Class B Ordinary Shares were surrendered by PAC Sponsor, LLC (the "Sponsor") to the Issuer for no consideration.

3. Represents shares held by the Sponsor. Steven K. Hudson and AVR Capital Holdings, LLC, an affiliate of Andrew Rechtschaffen, are the co-managing members of the Sponsor and control the management of the Sponsor, including the exercise of voting and investment discretion over the securities held by the Sponsor.

	/s/ Steven K. Hudson	09/23/2026
	** 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)