51Talk Online Education's three largest insider shareholders as of August 29, 2026 are Jack Jiajia Huang (Chief Executive Officer, 42.25Mn shares), Jack Jiajia Huang (Chief Executive Officer, 35.92Mn shares), Jimmy Y. Lai (Director, 2.98Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Jack Jiajia Huang | Chief Executive Officer | 0 | 35,921,760 | 35,921,760 | 86.6% | 13 Aug, 2026 |
| 2 | Jimmy Y. Lai | Director | 2,982,236 | 0 | 2,982,236 | 7.2% | 01 Jun, 2026 |
| 3 | Xiaoguang Wu | Director | 1,404,198 | 0 | 1,404,198 | 3.4% | 02 Jul, 2026 |
| 4 | Frank Hurst Lin | Director, TenPercentOwner | 1,192,215 | 0 | 1,192,215 | 2.9% | 21 Jul, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 11 Aug, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 254,820 | $19.61 | $5.00Mn | 35,090,640 | Indirect |
| 12 Aug, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 337,500 | $20.17 | $6.81Mn | 35,428,140 | Indirect |
| 06 Aug, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 105,120 | $19.29 | $2.03Mn | 34,545,360 | Indirect |
| 07 Aug, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 90,480 | $19.39 | $1.75Mn | 34,635,840 | Indirect |
| 10 Aug, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 199,980 | $19.72 | $3.94Mn | 34,835,820 | Indirect |
| 31 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 122,580 | $17.54 | $2.15Mn | 33,822,060 | Indirect |
| 03 Aug, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 333,840 | $18.48 | $6.17Mn | 34,155,900 | Indirect |
| 04 Aug, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 125,880 | $19.06 | $2.40Mn | 34,281,780 | Indirect |
| 05 Aug, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 158,460 | $19.20 | $3.04Mn | 34,440,240 | Indirect |
| 28 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 169,980 | $16.88 | $2.87Mn | 33,395,940 | Indirect |
| 29 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 109,080 | $16.91 | $1.84Mn | 33,505,020 | Indirect |
| 30 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 194,460 | $17.21 | $3.35Mn | 33,699,480 | Indirect |
| 24 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 185,880 | $16.26 | $3.02Mn | 32,774,640 | Indirect |
| 27 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 451,320 | $16.97 | $7.66Mn | 33,225,960 | Indirect |
| 21 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 498,660 | $16.62 | $8.29Mn | 31,983,600 | Indirect |
| 22 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 59,940 | $15.95 | $956.04K | 32,043,540 | Indirect |
| 22 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 123,780 | $15.98 | $1.98Mn | 32,167,320 | Indirect |
| 23 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 60,000 | $15.54 | $932.40K | 32,227,320 | Indirect |
| 23 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 60,000 | $15.60 | $936.00K | 32,287,320 | Indirect |
| 23 Jul, 2026 | Jack Jiajia Huang | Chief Executive Officer | Acquired P | 301,440 | $15.84 | $4.77Mn | 32,588,760 | Indirect |