C08148-2026

SECURITIES AND EXCHANGE COMMISSIONSEC FORM 17-C

CURRENT REPORT UNDER SECTION 17
OF THE SECURITIES REGULATION CODE
AND SRC RULE 17.2(c) THEREUNDER

1. Date of Report (Date of earliest event reported)
Nov 12, 2026
2. SEC Identification Number
37535
3. BIR Tax Identification No.
005-056-869_
4. Exact name of issuer as specified in its charter
ATN Holdings Inc
5. Province, country or other jurisdiction of incorporation
NCR, Philippines
6. Industry Classification Code(SEC Use Only)
7. Address of principal office
Unit 904, Summit One Tower, 530 Shaw Blvd., Mandaluyong City Postal Code 1550
8. Issuer's telephone number, including area code
+632 77170523
9. Former name or former address, if changed since last report
n/a
10. Securities registered pursuant to Sections 8 and 12 of the SRC or Sections 4 and 8 of the RSA
Title of Each Class Number of Shares of Common Stock Outstanding and Amount of Debt Outstanding
Common 6,825,055,429
11. Indicate the item numbers reported herein
1

The Exchange does not warrant and holds no responsibility for the veracity of the facts and representations contained in all corporate disclosures, including financial reports. All data contained herein are prepared and submitted by the disclosing party to the Exchange, and are disseminated solely for purposes of information. Any questions on the data contained herein should be addressed directly to the Corporate Information Officer of the disclosing party.

ATN Holdings, Inc.ATN

PSE Disclosure Form 4-24 - Results of Annual or Special Stockholders' Meeting References: SRC Rule 17 (SEC Form 17-C) and
Section 4.4 of the Revised Disclosure Rules

Subject of the Disclosure

MINUTES / RESULTS OF THE 2026 ANNUAL STOCKHOLDERS’ MEETING OF ATN HOLDINGS, INC. held on Thursday, November 12, 2026, 1:30 p.m. via Remote communication / Zoom at Corporate venue: 8th Floor, Summit One Tower Parking Building, 530 Shaw Boulevard, Mandaluyong City
Background/Description of the Disclosure

1. Call to Order and Welcome Remarks
The meeting was called to order at 1:30PM by the Chairman, Arsenio T. Ng, who welcomed the stockholders, directors, officers and other attendees.
2. Certification of Notice and Quorum
The Corporate Secretary, Atty. Leonides S. Respicio reported that notice had been given in accordance with applicable requirements. The Notice was published in the Daily Tribune print and online editions on October 12 and 13, 2026, supported by the Affidavit of Publication notarized on October 14, 2026. The stockholder record date was October 14, 2026. Shares represented 5,230,581,796 equivalent to 76.64% of Outstanding voting common shares
List of elected directors for the ensuing year with their corresponding shareholdings in the Issuer
Name of Person Shareholdings in the Listed Company Nature of Indirect Ownership
Direct Indirect
Arsenio T. Ng 2,763,541,260 0 n/a
Hilario T. Ng 3,501,000 0 n/a
Santos L. Cejoco 1,000 0 n/a
Leonides S. Respicio 10,000 0 n/a
Manuel R. Moje 10,000 0 n/a
Paul B. Saria 2,060,000 0 n/a
Sophie Miles L. Ng 41,474,274 0 n/a
Twinie Kaye L. Ng 43,535,833 0 n/a
Ardi Bradley L. Ng 27,000,000 0 n/a
Paul C. Cheah (Independent) 10,000 0 n/a
Ramon D. Escueta (Independent) 10,000 0 n/a
External auditor R.R. Tan & Associates
List of other material resolutions, transactions and corporate actions approved by the stockholders

3. Approval of Minutes of the Previous Annual Stockholders’ Meeting
Voting matter (i). The minutes of the Annual Stockholders’ Meeting held on November 13, 2025 were presented for approval. Approval is confined to the accuracy and completeness of the minutes and does not reapprove the prior corporate actions. Result: APPROVED

4. President’s Report and Audited Financial Statements
Management presented the President’s Report and the audited consolidated financial statements for the fiscal year ended March 31, 2026. Reported figures included consolidated revenue of ¿53.517 million, net income of ¿1.365 million, total assets of ¿3,906.567 million, and equity of ¿2,565.939 million. The June 30, 2026 interim financial statements were furnished for information; no separate ballot was requested on the interim report.

5. Ratification of Specified Acts and Resolutions
The Corporate Secretary presented the specifically identified acts and resolutions covering November 13, 2025 through November 12, 2026, as described in Item 15 of the SEC Form 20-IS and separately enumerated in the amended ballot. Each ratification category below is submitted to a separate vote and covers only acts within the previously granted corporate authority.
Other Relevant Information

6. Status Update — SEC-Approved and PSE-Implemented Share Declassification
(v), INFORMATION ONLY. The declassification of former Class “A” and Class “B” common shares into a single class was approved by the Board on September 29, 2025 and by stockholders on November 13, 2025. The SEC subsequently approved the declassification, which the Company disclosed to the PSE on October 15, 2026. The SEC certification dated October 14, 2026 assigned a new ISIN, CFI ESVUFR and FISN for the Corporation. Under PSE Notice DN00168-2026, trading suspension commenced October 16, 2026 at 9:00 a.m.; the unified common shares became effective under symbol ATN when suspension was lifted at 9:00 a.m of October 20, 2026. The one-for-one declassification combined 4,025,055,429 former Class “A” shares and 2,800,000,000 former Class “B” shares into 6,825,055,429 unified common shares, with no new issuance and no change in the total issued, outstanding or listed share count.
Filed on behalf by:
Name Paul Saria
Designation Chief Operations Officer, Corporate Information Officer, Assistant Corporate Secretary