Huang Jack Jiajia: insider buys
Every open-market stock purchase reported by Huang Jack Jiajia to the SEC on Form 4.
Total bought$262.56M
Purchases24
Companies1
Last purchase filedOct 8, 2026
Return on these buys-35%
Huang Jack Jiajia has made 24 open-market purchases worth $262.56M in 1 company since Apr 13, 2026, according to SEC Form 4 filings. The most recent was filed on Oct 8, 2026: 2,812,140 shares of COE at $11.50 (Chief Executive Officer, Director, 10% Owner), worth $32.33M. The largest was $35.33M of COE on Mar 26, 2026. Taken together, these purchases are down 35% at the latest closing prices (split-adjusted, weighted by amount).
Companies Huang Jack Jiajia bought
| Ticker | Company | Role | Buys | Total | Since buy | Last filed |
|---|---|---|---|---|---|---|
| COE | 51Talk Online Education Group | Chief Executive Officer, Director… | 24 | $262.56M | -35% | Oct 8 |
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| Filed | Stock | Insider | Value | Shares | Price | Since buy | Stake | Trade | |
|---|---|---|---|---|---|---|---|---|---|
| Oct 8 | COE51Talk Online Education Group | Huang Jack JiajiaChief Executive Officer, Director… | $32.33M | 2,812,140 | $11.50 | -1.5% | +8% | Sep 17 | SEC |
| Aug 21 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $3.93M | 187,020 | $21.02 | -46% | +0% | Apr 10 | SEC |
| Aug 13 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $11.80M | 592,320 | $19.93 | -43% | +2% | Aug 11 | SEC |
| Aug 12 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $7.73M | 395,580 | $19.53 | -42% | +1% | Aug 6 | SEC |
| Aug 10 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $13.76M | 740,760 | $18.58 | -39% | +2% | Jul 31 | SEC |
| Aug 5 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $8.06M | 473,520 | $17.02 | -33% | +1% | Jul 28 | SEC |
| Jul 30 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $10.68M | 637,200 | $16.76 | -32% | +2% | Jul 24 | SEC |
| Jul 27 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $17.86M | 1,103,820 | $16.18 | -30% | +4% | Jul 21 | SEC |
| Jul 23 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $10.49M | 622,140 | $16.86 | -33% | +2% | Jul 14 | SEC |
| Jul 20 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $8.48M | 495,360 | $17.12 | -34% | +2% | Jul 9 | SEC |
| Jul 13 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $9.31M | 562,560 | $16.55 | -32% | +2% | Jul 6 | SEC |
| Jul 8 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $23.49M | 1,444,920 | $16.26 | -30% | +5% | Jun 29 | SEC |
| Jun 30 | COE51Talk Online Education Group | Huang Jack JiajiaChief Executive Officer, Director… | $16.52M | 1,063,080 | $15.54 | -27% | +4% | Jun 23 | SEC |
| Jun 26 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $4.55M | 263,940 | $17.25 | -34% | +1% | Jun 16 | SEC |
| Jun 18 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $4.57M | 216,300 | $21.13 | -46% | +1% | Jun 8 | SEC |
| Jun 10 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $4.13M | 165,240 | $24.99 | -55% | +1% | May 29 | SEC |
| Jun 1 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $4.85M | 183,000 | $26.49 | -57% | +1% | May 22 | SEC |
| May 26 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $4.19M | 155,220 | $26.97 | -58% | +1% | May 15 | SEC |
| May 19 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $2.14M | 84,180 | $25.42 | -55% | +0% | May 11 | SEC |
| May 13 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $2.92M | 119,400 | $24.48 | -54% | +0% | May 6 | SEC |
| May 8 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $12.22M | 446,700 | $27.36 | -59% | +2% | Apr 24 | SEC |
| Apr 27 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $3.64M | 146,400 | $24.89 | -54% | +1% | Apr 20 | SEC |
| Apr 22 | COE51Talk Online Education Group | Huang Jack Jiajia10b5-1Chief Executive Officer, Director… | $9.56M | 384,960 | $24.83 | -54% | +2% | Apr 13 | SEC |
| Apr 13 | COE51Talk Online Education Group | Huang Jack JiajiaChief Executive Officer, Director… | $35.33M | 1,740,240 | $20.30 | -44% | +8% | Mar 26 | SEC |