Schedule 13G/A: Polar's 925,000-Share Position in Centurion Acquisition

Rhea-AI Filing Summary

Polar Asset Management Partners Inc. filed an Amendment No. 1 Schedule 13G disclosing a passive position in Centurion Acquisition Corp. Polar, an Ontario-based investment adviser to Polar Multi-Strategy Master Fund, reports beneficial ownership of 925,000 Class A ordinary shares, equal to 3.2% of the class. The filing states these shares are held in the ordinary course of business and were not acquired to change or influence control of the issuer. The issuer's principal office is listed at 667 Madison Avenue, New York. The filing references an event date of 06/30/2025 and is signed on 08/14/2025.

Insights

Financial Analyst

TL;DR: Passive 3.2% stake disclosed by Polar; sub-5% holding and explicit non-control intent limit market impact.

Polar Asset Management reports ownership of 925,000 shares (3.2%) of Centurion Acquisition Corp, held through Polar Multi-Strategy Master Fund. The Schedule 13G/A and the certification included emphasize the position is held in the ordinary course of business and not to influence control, which classifies the disclosure as passive. For investors, this is a transparency filing by an institutional adviser rather than an active control move; the size of the stake is below the common 5% threshold that typically prompts greater market or governance scrutiny.

Corporate Governance Expert

TL;DR: The amendment clarifies passive intent and demonstrates regulatory compliance; governance impact is minimal given stake size.

The filing identifies Polar Asset Management Partners Inc. as an investment adviser

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Centurion Acquisition Corp

(Name of Issuer)

Class A ordinary shares, par value $0.0001 per share

(Title of Class of Securities)

G20315100

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. G20315100

1

Names of Reporting Persons

Polar Asset Management Partners Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

ONTARIO, CANADA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 925,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 925,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

925,000.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

3.2 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Centurion Acquisition Corp
(b)	Address of issuer's principal executive offices: 667 Madison Avenue, 5th Floor New York, New York, 10065
Item 2.
(a)	Name of person filing: This statement is filed by Polar Asset Management Partners Inc., a company incorporated under the laws of Ontario, Canada, which serves as the investment advisor to Polar Multi-Strategy Master Fund, a Cayman Islands exempted company ("PMSMF") with respect to the shares directly held by PMSMF.
(b)	Address or principal business office or, if none, residence: 16 York Street, Suite 2900, Toronto, Ontario, M5J 0E6
(c)	Citizenship: Canada
(d)	Title of class of securities: Class A ordinary shares, par value $0.0001 per share
(e)	CUSIP No.: G20315100
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
	The Reporting Person is an investment fund manager, portfolio manager, exempt market dealer and commodity trading manager registered with the Ontario Securities Commission.
Item 4.	Ownership
(a)	Amount beneficially owned: 925000
(b)	Percent of class: 3.2 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 925000
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 925000
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Polar Asset Management Partners Inc.

Signature:	Andrew Ma
Name/Title:	Chief Compliance Officer
Date:	08/14/2025

FAQ

What stake does Polar Asset Management hold in Centurion Acquisition Corp (ALFUW)?

Polar reports beneficial ownership of 925,000 Class A ordinary shares, representing 3.2% of the class.

Who is the filing made on behalf of and which fund holds the shares?

The statement is filed by Polar Asset Management Partners Inc. and the shares are directly held by Polar Multi-Strategy Master Fund.

Is this a Schedule 13G or 13D filing and what amendment was filed?

This is an Amendment No. 1 to a Schedule 13G under the Securities Exchange Act of 1934.

Were the shares acquired to influence control of the issuer?

No. The filing includes a certification stating the securities were not acquired and are not held for the purpose of or with the effect of changing or influencing control.

When are the event and signature dates listed in the filing?

The date of the event requiring the filing is listed as 06/30/2025 and the signature date is 08/14/2025.