Centurion Acquisition Corp. reported a Schedule 13G disclosing that Linden Capital L.P., Linden GP LLC, Linden Advisors and Siu Min (Joe) Wong may be deemed beneficial owners of shares of Class A Ordinary Shares, par value $0.0001 per share. As of June 16, 2026, the filing states 952,477 shares are held by Linden Capital and 47,523 shares are held by Managed Accounts, producing reported beneficial ownership positions of 7.8% for Linden Capital and Linden GP and 8.2% for Linden Advisors and Mr. Wong. The filing describes shared voting and dispositive power for the reported amounts and attaches governance relationships: Linden GP is the general partner of Linden Capital; Linden Advisors is investment manager; Mr. Wong is principal owner and controlling person.
Positive
None.
Negative
None.
Insights
Ownership disclosure outlines a passive institutional stake with shared control.
The Schedule 13G lists beneficial ownership positions attributed to Linden Capital, Linden GP, Linden Advisors and Siu Min (Joe) Wong as of June 16, 2026, including 952,477 shares held directly by Linden Capital and an additional 47,523 shares in Managed Accounts.
The filing documents shared voting and shared dispositive power rather than sole control, and states the relationships among the entities (general partner, investment manager, controlling person). This is a standard institutional disclosure; subsequent filings would reflect any changes in voting power or dispositions.
Stake size is material at single‑digit percentages but appears non‑controlling.
The disclosed percentages are 7.8% (Linden Capital/Linden GP) and 8.2% (Linden Advisors/Mr. Wong) of outstanding Class A shares as of June 16, 2026. The filing attributes the larger 1,000,000 share beneficial position to Linden Advisors and Mr. Wong via combined holdings.
Cash‑flow treatment or plans for sale/acquisition are not stated in the excerpt; any market impact will depend on future transaction disclosures or updated ownership amendments.
Key Figures
Reporting date:June 16, 2026Shares held by Linden Capital:952,477 sharesShares held by Managed Accounts:47,523 shares+4 more
7 metrics
Reporting dateJune 16, 2026Ownership figures tied to this date
Shares held by Linden Capital952,477 sharesHeld by Linden Capital as of June 16, 2026
Shares held by Managed Accounts47,523 sharesHeld by Managed Accounts as of June 16, 2026
Beneficial ownership (Linden Advisors / Mr. Wong)1,000,000 sharesCombined position as of June 16, 2026
Percent of class (Linden Capital / Linden GP)7.8%Percent of Shares outstanding as of June 16, 2026
Percent of class (Linden Advisors / Mr. Wong)8.2%Percent of Shares outstanding as of June 16, 2026
CUSIPG20315100Class A Ordinary Shares, par value $0.0001 per share
"This Statement is filed on behalf of each of the following persons (collectively, the "Reporting Persons")"
A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.
Beneficial ownerfinancial
"As of June 16, 2026, each of Linden Advisors and Mr. Wong may be deemed the beneficial owner of 1,000,000 Shares"
A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.
Shared dispositive powerregulatory
"Shared Dispositive Power 952,477.00 Linden Capital and Linden GP"
Managed Accountsfinancial
"held for the account of Linden Capital and one or more separately managed accounts (the "Managed Accounts")"
Managed accounts are collections of investments owned by an individual or institution but run day-to-day by a professional who buys, sells and allocates assets according to an agreed plan. They matter to investors because they provide tailored oversight, active risk control and potential tax efficiency—like hiring a personal chef to manage your diet—while fees and the manager’s skill directly affect returns.
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Centurion Acquisition Corp.
(Name of Issuer)
Class A Ordinary Shares, par value $0.0001 per share
(Title of Class of Securities)
G20315100
(CUSIP Number)
06/16/2026
(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)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
G20315100
1
Names of Reporting Persons
Linden Capital L.P.
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
BERMUDA
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
952,477.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
952,477.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
952,477.00
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)
7.8 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
G20315100
1
Names of Reporting Persons
Linden GP LLC
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
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
952,477.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
952,477.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
952,477.00
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)
7.8 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
CUSIP Number(s):
G20315100
1
Names of Reporting Persons
Linden Advisors LP
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
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,000,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,000,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,000,000.00
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)
8.2 %
12
Type of Reporting Person (See Instructions)
IA, PN
SCHEDULE 13G
CUSIP Number(s):
G20315100
1
Names of Reporting Persons
Siu Min Wong
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
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,000,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,000,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,000,000.00
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)
8.2 %
12
Type of Reporting Person (See Instructions)
IN, HC
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, NY 10065
Item 2.
(a)
Name of person filing:
This Statement is filed on behalf of each of the following persons (collectively, the "Reporting Persons")
i) Linden Capital L.P., a Bermuda limited partnership ("Linden Capital");
ii) Linden GP LLC, a Delaware limited liability company ("Linden GP");
iii) Linden Advisors LP, a Delaware limited partnership ("Linden Advisors"); and
iv) Siu Min (Joe) Wong ("Mr. Wong").
This Statement relates to Class A Ordinary Shares, par value $0.0001 per share (the "Shares") of Centurion Acquisition Corp. (the "Issuer") held for the account of Linden Capital and one or more separately managed accounts (the "Managed Accounts"). Linden GP is the general partner of Linden Capital and, in such capacity, may be deemed to beneficially own the Shares held by Linden Capital. Linden Advisors is the investment manager of Linden Capital and trading advisor or investment advisor for the Managed Accounts. Mr. Wong is the principal owner and controlling person of Linden Advisors and Linden GP. In such capacities, Linden Advisors and Mr. Wong may each be deemed to beneficially own the Shares held by Linden Capital and the Managed Accounts.
(b)
Address or principal business office or, if none, residence:
The principal business address for Linden Capital is Victoria Place, 31 Victoria Street, Hamilton HM10, Bermuda. The principal business address for each of Linden Advisors, Linden GP and Mr. Wong is 590 Madison Avenue, 32nd Floor, New York, New York 10022.
(c)
Citizenship:
i) Linden Capital is a Bermuda limited partnership.
ii) Linden GP is a Delaware limited liability company.
iii) Linden Advisors is a Delaware limited partnership.
iv) Mr. Wong is a citizen of China (Hong Kong) and the United States.
(d)
Title of class of securities:
Class A Ordinary Shares, par value $0.0001 per share
(e)
CUSIP Number(s):
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).
Item 4.
Ownership
(a)
Amount beneficially owned:
As of June 16, 2026, each of Linden Advisors and Mr. Wong may be deemed the beneficial owner of 1,000,000 Shares. This amount consists of 952,477 Shares held by Linden Capital and 47,523 Shares held by the Managed Accounts. As of June 16, 2026 each of Linden GP and Linden Capital may be deemed the beneficial owner of the 952,477 Shares held by Linden Capital.
(b)
Percent of class:
As of June 16, 2026 each of Linden Advisors and Mr. Wong may be deemed the beneficial owner of approximately 8.2% of Shares outstanding, and each of Linden GP and Linden Capital may be deemed the beneficial owner of approximately 7.8% of Shares outstanding.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
Linden Capital and Linden GP: 0
Linden Advisors and Mr. Wong: 0
(ii) Shared power to vote or to direct the vote:
Linden Capital and Linden GP: 952,477
Linden Advisors and Mr. Wong: 1,000,000
(iii) Sole power to dispose or to direct the disposition of:
Linden Capital and Linden GP: 0
Linden Advisors and Mr. Wong: 0
(iv) Shared power to dispose or to direct the disposition of:
Linden Capital and Linden GP: 952,477
Linden Advisors and Mr. Wong: 1,000,000
Item 5.
Ownership of 5 Percent or Less of a Class.
Not Applicable
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
See disclosure in Items 2 and 4 hereof.
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
See disclosure in Item 2 hereof.
Item 8.
Identification and Classification of Members of the Group.
If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(K), so indicate under Item 3(k) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group.
See Exhibit A attached hereto.
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 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.
Linden Capital L.P.
Signature:
/S/ Saul Ahn
Name/Title:
Saul Ahn, Authorized Signatory
Date:
06/18/2026
Linden GP LLC
Signature:
/S/ Saul Ahn
Name/Title:
Saul Ahn, Authorized Signatory
Date:
06/18/2026
Linden Advisors LP
Signature:
/S/ Saul Ahn
Name/Title:
Saul Ahn, General Counsel
Date:
06/18/2026
Siu Min Wong
Signature:
/S/ Saul Ahn
Name/Title:
Saul Ahn, Attorney-in-Fact for Siu Min Wong**
Date:
06/18/2026
Comments accompanying signature: **Duly authorized under Siu Min Wong's Power of Attorney, dated June 10, 2019, incorporated herein by reference to Exhibit B of the statement on Schedule 13G filed by Linden Capital L.P. on June 19, 2019 in respect of its holdings in Haymaker Acquisition Corp II.
What stake does Linden Capital report in Centurion Acquisition (ALF)?
Linden Capital reports beneficial ownership of 952,477 shares (about 7.8%). The Schedule 13G states this figure is held by Linden Capital as of June 16, 2026, with shared voting and dispositive power attributed to related entities.
How many shares do Linden Advisors and Siu Min Wong report owning?
Linden Advisors and Siu Min (Joe) Wong each may be deemed beneficial owners of 1,000,000 shares (about 8.2%). This total includes 952,477 shares held by Linden Capital and 47,523 shares held by Managed Accounts as of June 16, 2026.
Does the filing show who controls voting or sale decisions for these shares?
The filing reports shared voting and shared dispositive power for the disclosed shares. Specifically, Linden Capital/Linden GP report shared voting/dispositive power over 952,477 shares; Linden Advisors and Mr. Wong report shared voting/dispositive power over 1,000,000 shares.
What is the significance of the Schedule 13G for ALF shareholders?
A Schedule 13G is an ownership disclosure for passive or qualifying institutional investors. It identifies beneficial ownership and voting/dispositive arrangements as of June 16, 2026 but does not itself announce sales, purchases, or plans to trade the shares.
What addresses and jurisdictions are listed for the reporting persons?
Linden Capital's principal business address is Victoria Place, 31 Victoria Street, Hamilton HM10, Bermuda. Linden Advisors, Linden GP and Mr. Wong list their principal business address at 590 Madison Avenue, 32nd Floor, New York, NY 10022.
