UNITED
STATES
SECURITIES
AND EXCHANGE COMMISSION
Washington,
D.C. 20549
Form
6-K
Report
of Foreign Private Issuer
Pursuant
to Rule 13a-16 or 15d-16
under
the Securities Exchange Act of 1934
For
the month of May 2026
Commission
File Number: 001-42484
ASCENTAGE
PHARMA GROUP INTERNATIONAL
(Translation
of Registrant’s name into English)
68
Xinqing Road
Suzhou
Industrial Park
Suzhou,
Jiangsu
China
(Address
of principal executive offices)
Indicate
by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form
20-F ☒ Form 40-F ☐
EXPLANATORY
NOTE
On
May 27, 2026, Ascentage Pharma Group International issued an announcement entitled “Purchase of Shares by the Trustee for the Purpose
of the 2022 RSU Scheme”. A copy of the press release is furnished as Exhibit 99.1.
INDEX
TO EXHIBITS
Exhibit
Number |
|
Exhibit
Title |
| 99.1 |
|
Announcement dated May 27, 2026 |
SIGNATURE
Pursuant
to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by
the undersigned, thereunto duly authorized.
| |
ASCENTAGE PHARMA GROUP INTERNATIONAL |
| |
|
| Date: May 27, 2026 |
/s/
Dajun Yang |
| |
Name: |
Dajun Yang |
| |
Title: |
Chief Executive Officer |
Exhibit 99.1
Hong Kong
Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement,
make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising
from or in reliance upon the whole or any part of the contents of this announcement.

ASCENTAGE PHARMA GROUP INTERNATIONAL
亞盛醫藥集團
(Incorporated in the Cayman Islands
with limited liability)
(Stock Code: 6855)
VOLUNTARY ANNOUNCEMENT
PURCHASE OF SHARES BY THE TRUSTEE
FOR THE PURPOSE OF THE 2022 RSU SCHEME
This announcement is made by Ascentage Pharma
Group International (the “Company”) on a voluntary basis. Reference is made to the announcements of the Company
dated June 23, 2022, July 14, 2022, October 21, 2022, October 25, 2022, October 26, 2022, October 27, 2022, October 28, 2022,
October 31, 2022, May 8, 2023, November 13, 2023, November 14, 2023, November 16, 2023, February 2, 2024, September 2, 2024, October
25, 2024, March 31, 2025, April 8, 2025, April 30, 2025, June 27, 2025, November 27, 2025, December 30, 2025, April 20, 2026 and
April 30, 2026 (the “Announcements”) in relation to, among other things, (i) the adoption of and amendments to
the 2022 RSU Scheme; (ii) the initial grant and the further grants of the 2022 Awards thereunder; and (iii) the purchase of existing
Shares by the Trustee on-market for the purpose of the 2022 RSU Scheme. Unless otherwise defined, capitalized terms used herein
shall have the same meanings as those defined in the Announcements.
On May 27, 2026, the Trustee purchased
a total of 100,000 existing Shares (the “Purchased Shares”) on-market for the purpose of the 2022 RSU Scheme to satisfy
the RSUs upon vesting. Details of the Purchased Shares and the latest information about the Shares held by the Trustee under the Scheme
are as follows:
| Purchase date |
: |
May 27, 2026 |
| |
|
|
| Total number of the Purchased Shares |
: |
100,000 Shares |
| |
|
|
| Percentage of the Purchased Shares to the total number
of issued Shares as at the date of this announcement |
: |
Approximately 0.0268% |
| |
|
|
Total consideration paid for the Purchased Shares
(excluding all related expenses, transaction levy, brokerage, tax, duties and levies) |
: |
HK$3,977,000 |
Average consideration per Purchased Share
(excluding all related expenses, transaction levy, brokerage, tax, duties and levies) |
: |
Approximately HK$39.77 |
| |
|
|
| Total number of existing Shares purchased by the Trustee on-market for the purpose of the 2022 RSU Scheme immediately after the aforesaid purchases |
: |
2,265,000 Shares |
The Purchased Shares are currently held
by the Trustee in accordance with the 2022 RSU Scheme Rules and the terms of the trust deed entered into between the Company and the Trustee.
The Trustee shall not exercise the voting rights attached to the Shares held on trust by it. As at the date of this announcement, no further
grant of Awards has been made pursuant to the 2022 RSU Scheme apart from the initial grant of the 2022 Awards on June 23, 2022 and the
further grants of the 2022 Awards on May 4, 2023, September 2, 2024, June 27, 2025, November 26, 2025 and April 20, 2026 as disclosed
in the Announcements.
| |
By Order of the Board |
| |
Ascentage Pharma Group International Dr. |
| |
Yang Dajun |
| |
Chairman and Executive Director |
Suzhou, People’s Republic of China, May 27, 2026
As at the date of this announcement,
the Board comprises Dr. Yang Dajun as Chairman and executive Director, Dr. Wang Shaomeng and Dr. Lu Simon DazhongNote
1 as non-executive Directors, and Mr. Ye Changqing, Mr. Ren Wei, Dr. David Sidransky Note 2,
Ms. Marina S. Bozilenko, Dr. Debra Yu and Dr. Marc E. Lippman, MD as independent non-executive Directors.
Notes:
| 1. | Dr. Lu Simon Dazhong satisfy the independence requirements
of the U.S. Securities and Exchange Commission and Nasdaq corporate governance requirements. |
| 2. | Dr. David Sidransky is the Lead Independent Non-Executive
Director of the Company. |