W. R. Berkley (AAM) discloses it no longer holds AA Mission Class A shares

Rhea-AI Filing Summary

W. R. Berkley Corporation, together with subsidiary Berkley Insurance Company, reports in this amended Schedule 13G that it now beneficially owns 0 Class A Ordinary Shares of AA Mission Acquisition Corp., corresponding to 0% of the class.

The filing states that W. R. Berkley and its subsidiary have no sole or shared voting power and no sole or shared dispositive power over any Class A Ordinary Shares. The registrant indicates ownership of 5 percent or less of the class, with all relevant signatures provided by Executive Vice President and Chief Financial Officer and by Executive Vice President and Treasurer.

Key Figures

Beneficially owned shares: 0 shares Percent of class owned: 0% Ownership threshold status: 5 percent or less +1 more

4 metrics

Beneficially owned shares 0 shares Class A Ordinary Shares of AA Mission Acquisition Corp. reported by W. R. Berkley Corporation

Percent of class owned 0% Class A Ordinary Shares of AA Mission Acquisition Corp. reported by W. R. Berkley Corporation

Ownership threshold status 5 percent or less Item 5 indicates ownership of 5 percent or less of the class

Filing signature date 08/05/2026 Date of signatures by Executive Vice President and Chief Financial Officer and Executive Vice President and Treasurer

Key Terms

beneficially owned, Sole power to vote, dispositive power, parent holding company

4 terms

beneficially owned financial

"Amount beneficially owned: 0"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole power to vote financial

"Sole power to vote or to direct the vote: 0"

dispositive power financial

"Sole power to dispose or to direct the disposition of: 0"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

parent holding company financial

"If a parent holding company has filed this schedule"

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

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Available on EDGAR 08/05/2026 - 05:06 PM Accepted by SEC EDGAR 08/05/2026 - 05:05 PM Learn about SEC filing dates

FAQ

What does the Schedule 13G/A show about W. R. Berkley’s ownership in AAM?

The amendment shows that W. R. Berkley Corporation now beneficially owns 0 Class A Ordinary Shares of AA Mission Acquisition Corp., representing 0% of the outstanding Class A shares and indicating ownership of 5 percent or less of the class.

How many AA Mission Acquisition Corp. shares does W. R. Berkley (AAM) control?

W. R. Berkley reports 0 shares beneficially owned, with 0% of the class held. It also discloses no sole or shared voting power and no sole or shared dispositive power over any Class A Ordinary Shares of AA Mission Acquisition Corp.

Which entities are listed as reporting persons in the AAM Schedule 13G/A?

The reporting persons are W. R. Berkley Corporation and its subsidiary Berkley Insurance Company, both organized in Delaware. The filing attributes 0 shares and 0% beneficial ownership of AA Mission Acquisition Corp. Class A Ordinary Shares to these entities.

What does “Ownership of 5 percent or less of a class” mean for AAM in this filing?

It means the reporting persons state they own no more than 5% of AA Mission Acquisition Corp.’s Class A Ordinary Shares. In this case, they specifically report 0 shares beneficially owned, equal to 0% of the class, confirming they are below the 5% threshold.

Who signed the Schedule 13G/A related to AA Mission Acquisition Corp. (AAM)?

The amendment is signed by Richard M. Baio in two capacities: as Executive Vice President and Chief Financial Officer and as Executive Vice President and Treasurer, each dated 08/05/2026, on behalf of the reporting entities.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

AA Mission Acquisition Corp.

(Name of Issuer)

Class A Ordinary Shares, par value $0.0001 per share

(Title of Class of Securities)

G1000R101

(CUSIP Number)

06/30/2026

(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): G1000R101

1

Names of Reporting Persons

W. R. Berkley Corporation

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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13G

CUSIP Number(s): G1000R101

1

Names of Reporting Persons

Berkley Insurance Company

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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

CO, IC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: AA Mission Acquisition Corp.
(b)	Address of issuer's principal executive offices: 21 WATERWAY AVENUE, Suite 300, #9732, The Woodlands, Texas, 77380
Item 2.
(a)	Name of person filing: W. R. Berkley Corporation
(b)	Address or principal business office or, if none, residence: 475 Steamboat Road Greenwich, CT 06830
(c)	Citizenship: US
(d)	Title of class of securities: Class A Ordinary Shares, par value $0.0001 per share
(e)	CUSIP No.: G1000R101
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: 0
(b)	Percent of class: 0 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 0
	(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.
	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 Exhibit 99.1
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.

W. R. Berkley Corporation

Signature:	/s/ Richard M. Baio
Name/Title:	Richard M. Baio/Executive Vice President and Chief Financial Officer
Date:	08/05/2026

Berkley Insurance Company

Signature:	/s/ Richard M. Baio
Name/Title:	Richard M. Baio/Executive Vice President and Treasurer
Date:	08/05/2026