X0202 SCHEDULE 13G 0002088641 XXXXXXXX LIVE Class A ordinary shares, par value $0.0001 per share 02/17/2026 0002092897 Armada Acquisition Corp. III G0R38M101 1760 Market Street, Suite 602 Philadelphia PA 19103 Rule 13d-1(d) Armada Sponsor III LLC DE 0.00 8652834.00 0.00 8652834.00 8652834.00 N 25.4 OO (1) Consists of (i) 8,252,834 Class A ordinary shares of Armada Acquisition Corp. III (the "Issuer") issuable upon conversion of 8,252,834 Class B ordinary shares of the Issuer, and (ii) 400,000 Class A ordinary shares that are included in the private placement units, in each case, as more fully described in the Issuer's Annual Report on Form 10-K for the year ended December 31, 2025 (the "Annual Report"). Does not include the 200,000 Class A ordinary shares that are issuable upon exercise of the 200,000 private placement warrants included in the private placement units. (2) 25.4% is calculated by using a denominator that is equal to (i) 24,850,000 Class A ordinary shares included in the issued and outstanding publicly held units of the Issuer, as reported in the Issuer's Annual Report, (ii) 8,252,834 Class A ordinary shares issuable upon conversion of 8,252,834 Class B ordinary shares and (iii) 672,000 Class A ordinary shares that are included in the private placement units. Stephen P. Herbert X1 0.00 8652834.00 0.00 8652834.00 8652834.00 N 25.4 IN (1) Consists of (i) 8,252,834 Class A ordinary shares of Armada Acquisition Corp. III (the "Issuer") issuable upon conversion of 8,252,834 Class B ordinary shares of the Issuer, and (ii) 400,000 Class A ordinary shares that are included in the private placement units, in each case, as more fully described in the Issuer's Annual Report on Form 10-K for the year ended December 31, 2025 (the "Annual Report"). Does not include the 200,000 Class A ordinary shares that are issuable upon exercise of the 200,000 private placement warrants included in the private placement units. (2) 25.4% is calculated by using a denominator that is equal to (i) 24,850,000 Class A ordinary shares included in the issued and outstanding publicly held units of the Issuer, as reported in the Issuer's Annual Report, (ii) 8,252,834 Class A ordinary shares issuable upon conversion of 8,252,834 Class B ordinary shares and (iii) 672,000 Class A ordinary shares that are included in the private placement units. Douglas M. Lurio X1 0.00 8652834.00 0.00 8652834.00 8652834.00 N 25.4 IN (1) Consists of (i) 8,252,834 Class A ordinary shares of Armada Acquisition Corp. III (the "Issuer") issuable upon conversion of 8,252,834 Class B ordinary shares of the Issuer, and (ii) 400,000 Class A ordinary shares that are included in the private placement units, in each case, as more fully described in the Issuer's Annual Report on Form 10-K for the year ended December 31, 2025 (the "Annual Report"). Does not include the 200,000 Class A ordinary shares that are issuable upon exercise of the 200,000 private placement warrants included in the private placement units. (2) 25.4% is calculated by using a denominator that is equal to (i) 24,850,000 Class A ordinary shares included in the issued and outstanding publicly held units of the Issuer, as reported in the Issuer's Annual Report, (ii) 8,252,834 Class A ordinary shares issuable upon conversion of 8,252,834 Class B ordinary shares and (iii) 672,000 Class A ordinary shares that are included in the private placement units. Armada Acquisition Corp. III 1760 Market Street, Suite 602, Philadelphia, Pennsylvania 19103 This statement is filed on behalf of each of the following persons (collectively, the "Reporting Persons"): (1) Armada Sponsor III LLC (2) Stephen P. Herbert (3) Douglas M. Lurio The principal business address of each Reporting Person is 1760 Market Street, Suite 602, Philadelphia, Pennsylvania 19103. (1) Armada Sponsor III LLC is Delaware limited liability company; (2) Stephen P. Herbert is a citizen of the United States; and (3) Douglas M. Lurio is a citizen of the United States. Y The responses to Items 5-11 of the cover pages of this Schedule 13G are incorporated herein by reference. Armada III Sponsor LLC ("Sponsor") is the record holder of (i) 8,252,834 Class B ordinary shares, which are convertible into Class A ordinary shares as more fully described in the Issuer's Registration Statement and (ii) 400,000 Class A ordinary shares that are included in the private placement units. The amount reflected does not include the 200,000 Class A ordinary shares issuable upon the exercise of the 200,000 private placement warrants included in the private placement units. 25.4% 0 8,652,834 0 8,652,834 Y Y Y Y Y Y 99.1 Joint Filing Agreement Armada Sponsor III LLC /s/ Stephen P. Herbert 05/13/2026 Stephen P. Herbert /s/ Stephen P. Herbert 05/13/2026 Douglas M. Lurio /s/ Douglas M. Lurio 05/13/2026