Buy4

51Talk Online Education Group

COE

Total Value

$32.4M

Net $32.3M bought

Filing Date

Oct 8, 2026

6 transactions

Purchases

$32.3M

6 transactions

Trade Summary

On Sep 17, 2026 through Oct 2, 2026, Huang Jack Jiajia, Chief Executive Officer, Director, 10% Owner, purchased $32.4M of 51Talk Online Education Group (COE) across 6 transactions. The filing covers company securities and reflects net buying of $32.3M. Reported prices ranged from $10.46 to $11.50. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Price at the Time of the Trade

COE daily price with the insider's purchase marked at $11.50.

Bought near the 7-month low · the stock trades 6% lower today.

Price data is delayed and provided for context only — not investment advice.

Insider Information

Name: Huang Jack Jiajia
Role: Chief Executive Officer, Director, 10% Owner

Filing Details

Filing Date: Oct 8, 2026
Transaction Date: Sep 17, 2026
Accession Number: 0002029760-26-000010
Form Type: 4
Net Trading Amount: $32.3M

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Sep 17, 2026	COE common stock	304,020	$11.48	Purchase	$3.5M
Sep 18, 2026	COE common stock	1,920	$11.50	Purchase	$22.1K
Sep 22, 2026	COE common stock	378,420	$11.50	Purchase	$4.4M
Sep 23, 2026	COE common stock	897,300	$11.50	Purchase	$10.3M
Sep 24, 2026	COE common stock	2,880	$11.50	Purchase	$33.1K
Sep 25, 2026	COE common stock	1,227,600	$11.50	Purchase	$14.1M
Oct 1, 2026	COE common stock	18,180	—	Exercise	—
Oct 2, 2026	COE common stock	4,020	$10.46	Tax Withholding	$42.0K

Derivative Transactions

Date	Security	Shares	Exercise Price	Type	Value
Oct 1, 2026	COE derivative	18,180	—	Exercise	—

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Footnotes

(F1)The Class A ordinary shares are held in the form of American depositary shares ("ADS"). Each ADS represents sixty Class A ordinary shares.
(F2)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 $10.90 to $11.50 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).
(F3)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.
(F4)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 $11.40 to $11.50 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).
(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 $11.485 to $11.50 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).
(F6)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.
(F7)Represents Class A ordinary shares, in the form of ADS, sold pursuant to a mandatory, non-discretionary, sell-to-cover arrangement for the purpose of satisfying the income tax liabilities of the reporting person's spouse incurred upon vesting of restricted share units ("RSUs").
(F8)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.
(F9)Represents RSU granted to the reporting person's spouse pursuant to the issuer's share incentive plans. Each RSU represents the contingent right to receive one (1) Class A ordinary share of the issuer upon vesting.
(F10)The RSUs vested on October 1, 2026.
(F11)The reporting person's spouse was granted 145,440 RSUs on July 10, 2026, of which 72,720 RSUs vested in full on the date of grant. The remaining 72,720 RSUs vest in four equal quarterly installments of 18,180 RSUs on October 1, 2026, January 1, 2027, April 1, 2027 and July 1, 2027, respectively. Following the vesting reported herein, 54,540 Class A ordinary shares remain subject to future vesting under this grant.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Huang Jack Jiajia

(Last)

(First)

(Middle)

6 SHENTON WAY, #38-01 OUE DOWNTOWN

(Street)

SINGAPORE

068809

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
51Talk Online Education Group [ COE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
09/17/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Ordinary Share, par value US$0.0001⁽¹⁾	09/17/2026		P		304,020	A	$11.48⁽²⁾	35,919,180	I	By HH Talent Limited⁽³⁾
Class A Ordinary Share, par value US$0.0001⁽¹⁾	09/18/2026		P		1,920	A	$11.5	35,921,100	I	By HH Talent Limited⁽³⁾
Class A Ordinary Share, par value US$0.0001⁽¹⁾	09/22/2026		P		378,420	A	$11.5	36,299,520	I	By HH Talent Limited⁽³⁾
Class A Ordinary Share, par value US$0.0001⁽¹⁾	09/23/2026		P		897,300	A	$11.5⁽⁴⁾	37,196,820	I	By HH Talent Limited⁽³⁾
Class A Ordinary Share, par value US$0.0001⁽¹⁾	09/24/2026		P		2,880	A	$11.5	37,199,700	I	By HH Talent Limited⁽³⁾
Class A Ordinary Share, par value US$0.0001⁽¹⁾	09/25/2026		P		1,227,600	A	$11.5⁽⁵⁾	38,427,300	I	By HH Talent Limited⁽³⁾
Class A Ordinary Share, par value US$0.0001⁽¹⁾								7,297,560	D
Class A Ordinary Share, par value US$0.0001⁽¹⁾	10/01/2026		M		18,180	A	$0	511,800	I	By Spouse⁽⁶⁾
Class A Ordinary Share, par value US$0.0001⁽¹⁾	10/02/2026		F		4,020	D	$10.46⁽⁷⁾	507,780	I	By Spouse⁽⁶⁾
Class A Ordinary Share, par value US$0.0001⁽¹⁾								42,388,800	I	By Dasheng Global Limited⁽⁸⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Share Units (RSUs)	⁽⁹⁾	10/01/2026		M			18,180	⁽¹⁰⁾	07/01/2035	Class A Ordinary Share, par value US$0.0001	18,180	$0	54,540⁽¹¹⁾	I	By Spouse⁽⁶⁾

Explanation of Responses:

1. The Class A ordinary shares are held in the form of American depositary shares ("ADS"). Each ADS represents sixty Class A ordinary shares.

2. 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 $10.90 to $11.50 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).

3. 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.

4. 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 $11.40 to $11.50 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).

5. 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 $11.485 to $11.50 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. 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.

7. Represents Class A ordinary shares, in the form of ADS, sold pursuant to a mandatory, non-discretionary, sell-to-cover arrangement for the purpose of satisfying the income tax liabilities of the reporting person's spouse incurred upon vesting of restricted share units ("RSUs").

8. 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.

9. Represents RSU granted to the reporting person's spouse pursuant to the issuer's share incentive plans. Each RSU represents the contingent right to receive one (1) Class A ordinary share of the issuer upon vesting.

10. The RSUs vested on October 1, 2026.

11. The reporting person's spouse was granted 145,440 RSUs on July 10, 2026, of which 72,720 RSUs vested in full on the date of grant. The remaining 72,720 RSUs vest in four equal quarterly installments of 18,180 RSUs on October 1, 2026, January 1, 2027, April 1, 2027 and July 1, 2027, respectively. Following the vesting reported herein, 54,540 Class A ordinary shares remain subject to future vesting under this grant.

	/s/ Jack Jiajia Huang	10/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Form 4 as rendered by the SEC from accession 0002029760-26-000010.

51Talk Online Education Group

Trade Summary

Price at the Time of the Trade

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

Price at the Time of the Trade

SEC Form 4