Stephen P. Herbert - 19 Feb 2026 Form 4 Insider Report for Armada Acquisition Corp. III (AACIU)

Reporting relationship: Chief Executive Officer, Chairman, and Director, Director, 10%+ Owner
Issuer ticker: AACIU
Reported as of: 19 Feb 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 17 Mar 2026, 21:03:27 UTC
Prior SEC filing: 17 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Stephen P. Herbert

Key filing fact

Stephen P. Herbert filed Form 4 for Armada Acquisition Corp. III (AACIU) on 17 Mar 2026.

Key facts

This page summarizes Stephen P. Herbert's Form 4 filing for Armada Acquisition Corp. III (AACIU).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 17 Mar 2026, 21:03.

Change

Previous filing in this sequence was filed on 17 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001202182 Primary reporting owner

HERBERT STEPHEN P

Relationship: Chief Executive Officer, Chairman, and Director, Director, 10%+ Owner
Address: C/O ARMADA ACQUISITION CORP. III, 1760 MARKET STREET, SUITE 602, PHILADELPHIA
Signature: /s/ Stephen P. Herbert
Signature date: 17 Mar 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

AACIU transaction Derivative

Class B Ordinary Shares

Other

Transaction value
Shares: -345,083
Change %: -4%
Price
Shares after: 8,252,834
Date: 19 Feb 2026
Ownership: Armada Sponsor III LLC
Underlying class: Class A Ordinary Shares
Underlying amount: 8,252,834
Exercise price
Footnotes: F1, F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

The Class B Ordinary Shares have no expiration date and will automatically convert into Class A Ordinary Shares at the time of the Issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis.

Footnote F2

As described in the registration statement on Form S-1 (File No. 333-291013), up to 1,136,250 of the Class B Ordinary Shares issued to Armada Sponsor III LLC (the "Sponsor") were subject to forfeiture depending on the extent to which the underwriters' over-allotment option was exercised in connection with the Issuer's initial public offering. On February 19, 2026, the underwriters partially exercised the over-allotment option to purchase an additional 2,350,000 public units and delivered a notice of waiver with respect to the unexercised portion of the over-allotment option, and as a result, the Sponsor forfeited 345,083 Class B Ordinary Shares for no consideration.

Footnote F3

The securities are held directly by the Sponsor. The Reporting Person is a managing member of the Sponsor, therefore, he may be deemed to have beneficial ownership of the securities held directly by the Sponsor. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

SEC remarks

Chief Executive Officer, Chairman, and Director