51Talk Online Education Group

Filing Date

May 26, 2026

Transaction Date

May 15, 2026

Accession Number

0001104659-26-065999

Form Type

4

Net Trading Amount

$4.2M

Footnotes

1. (F1)The Class A ordinary shares are held in the form of American depositary shares ("ADS"). Each ADS represents sixty Class A ordinary shares.
2. (F2)These transactions were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person on December 25, 2025.
3. (F3)The price reported in Column 4 is a weighted average price of ADS. The reporting person executed a trade order through a broker-dealer which resulted in multiple same-day, same-way open market purchases, with prices ranging from $24.53 to $27.00 per ADS. The reporting person has reported these purchases on an aggregate basis using the weighted average price, rounded to the nearest cent, for the transactions. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of ADS purchased at each price. All of these ADS were purchased by HH Talent Limited (as defined below).
4. (F4)HH Talent Limited is a British Virgin Islands company. The reporting person is the sole director of HH Talent Limited. HH Talent Limited is wholly beneficially owned by HH Talent Holdings Limited, which is in turn wholly owned by HH Talent Trust, for which TMF (Cayman) Ltd. acts as the trustee (the "Trustee"). S.B. Vanwall Ltd., appointed by the Trustee, is the sole director of HH Talent Holdings Limited. The settlor of HH Talent Trust is the reporting person. The reporting person is deemed to be the beneficial owner of the shares directly held by HH Talent Limited.
5. (F5)The price reported in Column 4 is a weighted average price of ADS. The reporting person executed a trade order through a broker-dealer which resulted in multiple same-day, same-way open market purchases, with prices ranging from $27.57 to $28.65 per ADS. The reporting person has reported these purchases on an aggregate basis using the weighted average price, rounded to the nearest cent, for the transactions. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of ADS purchased at each price. All of these ADS were purchased by HH Talent Limited (as defined above).
6. (F6)The price reported in Column 4 is a weighted average price of ADS. The reporting person executed a trade order through a broker-dealer which resulted in multiple same-day, same-way open market purchases, with prices ranging from $26.46 to $26.99 per ADS. The reporting person has reported these purchases on an aggregate basis using the weighted average price, rounded to the nearest cent, for the transactions. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of ADS purchased at each price. All of these ADS were purchased by HH Talent Limited (as defined above).
7. (F7)The price reported in Column 4 is a weighted average price of ADS. The reporting person executed a trade order through a broker-dealer which resulted in multiple same-day, same-way open market purchases, with prices ranging from $26.38 to $27.79 per ADS. The reporting person has reported these purchases on an aggregate basis using the weighted average price, rounded to the nearest cent, for the transactions. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of ADS purchased at each price. All of these ADS were purchased by HH Talent Limited (as defined above).
8. (F8)The price reported in Column 4 is a weighted average price of ADS. The reporting person executed a trade order through a broker-dealer which resulted in multiple same-day, same-way open market purchases, with prices ranging from $26.70 to $27.17 per ADS. The reporting person has reported these purchases on an aggregate basis using the weighted average price, rounded to the nearest cent, for the transactions. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of ADS purchased at each price. All of these ADS were purchased by HH Talent Limited (as defined above).
9. (F9)The reporting person disclaims beneficial ownership of the shares held by his spouse except to the extent of his pecuniary interest, if any, and this report should not be deemed an admission that the reporting person is the beneficial owner of the shares held by his spouse for purposes of Section 16 or for any other purpose.
10. (F10)Each of Dasheng Global Limited and Dasheng Online Limited is a British Virgin Islands company. The reporting person is the sole director of Dasheng Global Limited, and Ms. Ting Shu, who is the spouse of the reporting person, is the sole director of Dasheng Online Limited. Each of Dasheng Global Limited and Dasheng Online Limited is wholly beneficially owned by Dasheng International Holdings Limited, which is in turn wholly owned by TB Family Trust, for which TMF (Cayman) Ltd. acts as the trustee (the "Trustee"). S.B. Vanwall Ltd., appointed by the Trustee, is the sole director of Dasheng International Holdings Limited. The settlors of TB Family Trust are reporting person and Ms. Ting Shu. The reporting person, Ms. Ting Shu and their family members are deemed to be beneficial owners of the shares directly held by Dasheng Global Limited and Dasheng Online Limited.