JH
Jack Jiajia Huang (Chief Executive Officer) filed 24 Form 4 reports in the trailing twelve months (24 purchases, 0 sales, 23 filed past the two-business-day deadline), most often in 51Talk Online Education Group (COE). Across 24 priced purchase filings, the average 21-session return was -3.7% from execution and -11.2% from disclosure (delay-adjusted; derived). The largest single filing was $35.3M of COE (1,740,240 sh across 10 lots, as filed), executed Mar 26. Data as of Nov 8 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
-3.7%
avg across 24 priced filings
Delay-adjustediThe same average, entered at disclosure dates
-11.2%
same 24 filings, from disclosure
Filings, ttm
24
24 buys · 0 sells · 23 late
Median delay
9d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$262.2M
shares × price, as filed
Last traded
Sep 25
Filed Oct 8
Median ADV $230K across their filed names
Impact on $10,000 · 12M
$5,068 (-49.3%)
S&P 500 $10,907 (+9.1%) · 58.4 pts behind
Jack Jiajia Huang
S&P 500
Derived: compounded across filings from disclosure dates · past 12 months
Open performance→Volume by month
Buys $262.2M
Sells $0
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Consumer Defensive
24 filings
Sector per market data · by filing · past 12 months
Most traded names
COERecent filings
COEPURCHASE
51Talk Online Education Group
View filing →
$8.5M495,360 sh across 3 lots
Exec Jul 9
Filed Jul 20 · 8:17 AM ET † COEPURCHASE 51Talk Online Education Group View filing → $9.3M
562,560 sh across 3 lots
Exec Jul 6
Filed Jul 13 · 6:51 AM ET † COEPURCHASE 51Talk Online Education Group View filing → $23.5M
1,444,860 sh across 7 lots
Exec Jun 29
Filed Jul 8 · 8:44 AM ET † COEPURCHASE 51Talk Online Education Group View filing → $16.5M
1,059,300 sh across 14 lots
Exec Jun 23
Filed Jun 30 · 8:03 AM ET † COEPURCHASE 51Talk Online Education Group View filing → $4.3M
247,560 sh across 5 lots
Exec Jun 16
Filed Jun 26 · 8:23 AM ET † COEPURCHASE 51Talk Online Education Group View filing → $4.6M
216,300 sh across 6 lots
Exec Jun 8
Filed Jun 18 · 6:58 AM ET † COEPURCHASE 51Talk Online Education Group View filing → $4.1M
165,240 sh across 6 lots
Exec May 29
Filed Jun 10 · 7:39 AM ET † COEPURCHASE 51Talk Online Education Group View filing → $4.8M
183,000 sh across 4 lots
Exec May 22
Filed Jun 1 · 7:28 AM ET † More filings →