Form4insider filings, from the source

Company · CIK 0001659494 · SIC 8200 — Services-Educational Services · NYSE

51Talk Online Education Group · COE

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $155.4M · 15sales $0 · 0net $155.4M
$10k$10k$1M$1M$100M$100MbuyssalesApr 9Apr 29May 20Jun 10Jul 1Jul 22Aug 12

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 18, 2026 MForm 4 →Aug 21, 6:48 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner137,500——42,388,800—10b5-1 late
Aug 11, 2026 PForm 4 →Aug 13, 6:57 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner592,320$19.93$11,804,39535,428,140+1.70%10b5-1
Aug 6, 2026 PForm 4 →Aug 12, 7:40 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner395,580$19.53$7,725,77834,835,820+1.15%10b5-1 late
Jul 31, 2026 PForm 4 →Aug 10, 6:31 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner740,760$18.58$13,761,12134,440,240+2.20%10b5-1 late
Jul 28, 2026 PForm 4 →Aug 5, 6:30 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner473,520$17.02$8,060,46233,699,480+1.43%10b5-1 late
Jul 24, 2026 PForm 4 →Jul 30, 6:57 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner637,200$16.76$10,681,30933,225,960+1.96%10b5-1 late
Jul 21, 2026 PForm 4 →Jul 27, 9:04 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner1,103,820$16.18$17,864,98632,588,760+3.51%10b5-1 late
Jul 14, 2026 PForm 4 →Jul 23, 7:19 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner622,140$16.86$10,490,55831,484,940+2.02%10b5-1 late
Jul 10, 2026 FMForm 4 →Jul 20, 8:17 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner84,720$17.13$205,560493,620—10b5-1 late
Jul 9, 2026 PForm 4 →Jul 20, 8:17 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner495,360$17.12$8,480,29330,862,800+1.63%10b5-1 late
Jul 8, 2026 MForm 4 →Jul 21, 7:33 am EDTFrank Hurst LinDirector, 10% Owner72,720——1,192,215— late
Jul 6, 2026 PForm 4 →Jul 13, 6:51 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner562,560$16.55$9,312,80630,367,440+1.89%10b5-1 late
Jul 1, 2026 MForm 4 →Jul 2, 7:04 am EDTXiaoguang WuDirector45,911——1,404,198—
Jun 30, 2026 MForm 4 →Jun 30, 8:03 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner275,000——42,251,300—
Jun 29, 2026 PForm 4 →Jul 8, 8:44 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner1,444,920$16.26$23,487,34429,804,880+5.09%10b5-1 late
Jun 23, 2026 PForm 4 →Jun 30, 8:03 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner1,063,080$15.54$16,524,75728,359,960+3.89% late
Jun 16, 2026 PForm 4 →Jun 26, 8:23 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner263,940$17.25$4,552,19927,296,880+0.98%10b5-1 late
Jun 8, 2026 PForm 4 →Jun 18, 6:58 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner216,300$21.13$4,570,57027,032,940+0.81%10b5-1 late
May 29, 2026 PForm 4 →Jun 10, 7:39 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner165,240$24.99$4,128,86226,816,640+0.62%10b5-1 late
Apr 10, 2026 PForm 4 →Aug 21, 6:48 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner187,020$21.02$3,932,01535,615,160+0.53%10b5-1 late
Mar 26, 2026 FMPForm 4 →Jul 20, 8:52 am EDTTing ShuDirector8,243,720$17.13$205,56030,862,800— late

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 18, 2026 MForm 4 →Aug 21, 6:48 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner137,500——825,000—10b5-1 late
Jul 10, 2026 AForm 4 →Jul 20, 8:17 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner72,720——72,720—10b5-1 late
Jul 8, 2026 AForm 4 →Jul 21, 7:33 am EDTFrank Hurst LinDirector, 10% Owner72,720——72,720— late
Jul 1, 2026 MForm 4 →Jul 2, 7:04 am EDTXiaoguang WuDirector45,911——0—
Jun 30, 2026 MForm 4 →Jun 30, 8:03 am EDTJack Jiajia HuangChief Executive Officer, Director, 10% Owner275,000——0—
Mar 30, 2026 AMForm 4 →Jul 20, 8:52 am EDTTing ShuDirector760,220——0— late