# EDGAR Filing Document

**Accession Number:** 0002029760
**File Stem:** 0001104659-26-002649
**Filing Date:** 2026-1
**Character Count:** 18692
**Document Hash:** 59d36ec5d7ee6e7f8bff0a42b22c0c2a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-002649.hdr.sgml**: 20260112

**ACCESSION NUMBER**: 0001104659-26-002649

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260112

**DATE AS OF CHANGE**: 20260112

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** 51Talk Online Education Group
- **CENTRAL INDEX KEY:** 0001659494
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-EDUCATIONAL SERVICES [8200]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-89546
- **FILM NUMBER:** 26524551

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 6 SHENTON WAY, #38-07 OUE DOWNTOWN
- **CITY:** SINGAPORE
- **PROVINCE COUNTRY:** U0
- **ZIP:** 068809
- **BUSINESS PHONE:** 65 69912347

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 6 SHENTON WAY, #38-07 OUE DOWNTOWN
- **CITY:** SINGAPORE
- **PROVINCE COUNTRY:** U0
- **ZIP:** 068809

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** China Online Education Group
- **DATE OF NAME CHANGE:** 20151127
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Huang Jack Jiajia
- **CENTRAL INDEX KEY:** 0002029760

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** ROOM 2010 - 2011, 20/F, TOWER 1
- **STREET 2:** TIMES SQUARE
- **CITY:** CAUSEWAY BAY
- **PROVINCE COUNTRY:** K3
- **ZIP:** 00000

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 10)**

**51Talk Online Education Group**

*(Name of Issuer)*

**Class A ordinary shares, par value $0.0001 per share**

*(Title of Class of Securities)*

**16954L204**

*(CUSIP Number)*

**Jack Jiajia Huang**<br>6 Shenton Way

#38-01 OUE Downtown<br>Singapore U0 068809<br>0065 6991 2347

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**12/31/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **16954L204** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Jack Jiajia Huang** | Name of reporting person<br>**Jack Jiajia Huang** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**CHINA** | Citizenship or place of organization<br>**CHINA** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**30502680.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**88144984.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**30502680.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**88144984.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**118647664.00** | Aggregate amount beneficially owned by each reporting person<br>**118647664.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**33.8%** | Percent of class represented by amount in Row (11)<br>**33.8%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Note to 7 and 9: Represents (i) 7,111,380 Class A ordinary shares in the form of ADSs purchased by Jack Jiajia Huang in the open market, and (ii) 23,391,300 Class A ordinary shares in the form of ADSs purchased by HH Talent Limited in the open market.

Note to 8 and 10: Represents (i) 186,180 Class A ordinary shares in the form of ADSs held by Jack Jiajia Huang, (ii) 41,426,340 Class A ordinary shares in the form of ADSs held by Dasheng Global Limited, (iii) 137,460 Class A ordinary shares issuable to Dasheng Global Limited upon the vesting of restricted share units within 60 days after the date thereof, (iv) 432,900  Class A ordinary shares in the form of ADSs held by Ting Shu, (v) 36,360  Class A ordinary shares issuable to Ting Shu upon the vesting of restricted share units within 60 days after the date thereof, (vi) 30,390,321 Class B ordinary shares held by Dasheng Global Limited, and (vii) 15,535,423 Class B ordinary shares held by Dasheng Online Limited.

Note to 11: Represents (i) 7,297,560 Class A ordinary shares in the form of ADSs held by Jack Jiajia Huang, (ii) 41,426,340 Class A ordinary shares in the form of ADSs held by Dasheng Global Limited, (iii) 137,460 Class A ordinary shares issuable to Dasheng Global Limited upon the vesting of restricted share units within 60 days after the date thereof, (iv) 23,391,300 Class A ordinary shares in the form of ADSs purchased by HH Talent Limited, (v) 432,900 Class A ordinary shares in the form of ADSs held by Ting Shu, (vi) 36,360 Class A ordinary shares issuable to Ting Shu upon the vesting of restricted share units within 60 days after the date thereof, (vii) 30,390,321 Class B ordinary shares held by Dasheng Global Limited, and (viii) 15,535,423 Class B ordinary shares held by Dasheng Online Limited. The voting power of the shares beneficially owned by Jack Jiajia Huang represents 41.4% of the total outstanding voting power.

| **CUSIP No.** | **16954L204** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Dasheng Global Limited** | Name of reporting person<br>**Dasheng Global Limited** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**D8** | Citizenship or place of organization<br>**D8** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**71954121.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**71954121.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**71954121.00** | Aggregate amount beneficially owned by each reporting person<br>**71954121.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**20.5%** | Percent of class represented by amount in Row (11)<br>**20.5%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** Note to 8, 10, and 11: Represents (i) 41,426,340 Class A ordinary shares in the form of ADSs held by Dasheng Global Limited, (ii) 137,460 Class A ordinary shares issuable to Dasheng Global Limited upon the vesting of restricted share units within 60 days after the date thereof, and (iii) 30,390,321 Class B ordinary shares held by Dasheng Global Limited. The voting power of the shares beneficially owned by Dasheng Global Limited represents 26.9% of the total outstanding voting power.

| **CUSIP No.** | **16954L204** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Dasheng International Holdings Limited** | Name of reporting person<br>**Dasheng International Holdings Limited** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**D8** | Citizenship or place of organization<br>**D8** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**88144984.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**88144984.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**88144984.00** | Aggregate amount beneficially owned by each reporting person<br>**88144984.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**25.1%** | Percent of class represented by amount in Row (11)<br>**25.1%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** Note to 8, 10, 11: Represents (i) 186,180 Class A ordinary shares in the form of ADSs held by Jack Jiajia Huang, (ii) 41,426,340 Class A ordinary shares in the form of ADSs held by Dasheng Global Limited, (iii) 137,460 Class A ordinary shares issuable to Dasheng Global Limited upon the vesting of restricted share units within 60 days after the date thereof, (iv) 432,900 Class A ordinary shares in the form of ADSs held by Ting Shu, (v) 36,360 Class A ordinary shares issuable to Ting Shu upon the vesting of restricted share units within 60 days after the date thereof, (vi) 30,390,321 Class B ordinary shares held by Dasheng Global Limited, and (vii) 15,535,423 Class B ordinary shares held by Dasheng Online Limited. The voting power of the shares beneficially owned by Dasheng International Holdings Limited represents 39.1% of the total outstanding voting power.

| **CUSIP No.** | **16954L204** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**TB Family Trust** | Name of reporting person<br>**TB Family Trust** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**CAYMAN ISLANDS** | Citizenship or place of organization<br>**CAYMAN ISLANDS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**88144984.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**88144984.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**88144984.00** | Aggregate amount beneficially owned by each reporting person<br>**88144984.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**25.1%** | Percent of class represented by amount in Row (11)<br>**25.1%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** Note to 8, 10, 11: Represents (i) 186,180 Class A ordinary shares in the form of ADSs held by Jack Jiajia Huang, (ii) 41,426,340 Class A ordinary shares in the form of ADSs held by Dasheng Global Limited, (iii) 137,460 Class A ordinary shares issuable to Dasheng Global Limited upon the vesting of restricted share units within 60 days after the date thereof, (iv) 432,900  Class A ordinary shares in the form of ADSs held by Ting Shu, (v) 36,360 Class A ordinary shares issuable to Ting Shu upon the vesting of restricted share units within 60 days after the date thereof, (vi) 30,390,321 Class B ordinary shares held by Dasheng Global Limited, and (vii) 15,535,423 Class B ordinary shares held by Dasheng Online Limited. The voting power of the shares beneficially owned by Dasheng International Holdings Limited represents 39.1% of the total outstanding voting power.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Class A ordinary shares, par value $0.0001 per share

**(b) Name of Issuer:**
51Talk Online Education Group

**(c) Address of Issuer's Principal Executive Offices:**
6 Shenton Way, #38-01 OUE Downtown, Singapore, U0, 068809

Pursuant to Rule 13d-2 promulgated under the Act, this Amendment No. 10 to Statement on Schedule 13D (this "Amendment") amends and supplements the Statement on Schedule 13D originally filed with the U.S. Securities and Exchange Commission on July 25, 2022, as amended by Amendment No. 1 thereto filed on October 5, 2022, by Amendment No. 2 thereto filed on July 10, 2023, by Amendment No. 3 thereto filed on November 29, 2023, by Amendment No. 4 thereto filed on February 22, 2024, by Amendment No. 5 thereto filed on July 11, 2024, by Amendment No. 6 thereto filed on October 10, 2024, by Amendment No. 7 thereto filed on December 17, 2024, by Amendment No. 8 thereto filed on March 26, 2025, and by Amendment No. 9 thereto filed on October 10, 2025 (as so amended, the "Statement"). Except as specifically provided herein, this Amendment does not modify any of the information previously reported in the Statement. All capitalized terms used herein which are not defined herein have the meanings given to such terms in the Statement.

**Item 5. Interest in Securities of the Issuer**

**(a)**
The responses of each Reporting Person to Rows (7) through (13) of the cover pages of this Amendment are hereby incorporated herein by reference. Such information is calculated based on an aggregate of 351,568,497 issued and outstanding ordinary shares (being the sum of 247,961,517 Class A ordinary shares and 103,606,980 Class B ordinary shares) of the Issuer as of February 28, 2025 as a single class.

**(b)**
The responses of each Reporting Person to Rows (7) through (13) of the cover pages of this Amendment are hereby incorporated herein by reference.

**(c)**
The information in Item 3 and Item 4 is incorporated herein by reference. Except as set forth on Schedule I attached hereto, the Reporting Person has not effected any transaction in the ordinary shares of the Issuer during the past 60 days.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

The information set forth in Item 3 is hereby incorporated by reference in its entirety.

To the best knowledge of the Reporting Persons, except as provided herein, there are no other contracts, arrangements, understandings or relationships (legal or otherwise) between the Reporting Persons and between any of the Reporting Persons and any other person with respect to any securities of the Issuer, finder's fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or loss, or the giving or withholding of proxies, or a pledge or contingency, the occurrence of which would give another person voting power or investment power over the securities of the Issuer.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Jack Jiajia Huang

**Signature:** /s/ Jack Jiajia Huang

**Name/Title:** Jack Jiajia Huang

**Date:** 01/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Dasheng Global Limited

**Signature:** /s/ Jack Jiajia Huang

**Name/Title:** Jack Jiajia Huang/Director

**Date:** 01/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Dasheng International Holdings Limited

**Signature:** /s/ S.B. Vanwall Ltd.

**Name/Title:** S.B. Vanwall Ltd./Director

**Date:** 01/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** TB Family Trust

**Signature:** /s/ TMF (Cayman) Ltd.

**Name/Title:** TMF (Cayman) Ltd./Trustee

**Date:** 01/12/2026