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JH
Insider

Jack Jiajia Huang

Chief Executive Officer

Jack Jiajia Huang (Chief Executive Officer) filed 23 Form 4 reports in the trailing twelve months (23 purchases, 0 sales, 22 filed past the two-business-day deadline), most often in 51Talk Online Education Group (COE). Across 23 priced purchase filings, the average 21-session return was -4.4% from execution and -11.7% 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.

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Return, ttmiAverage return per filing, trailing twelve months
-4.4%
avg across 23 priced filings
Delay-adjustediThe same average, entered at disclosure dates
-11.7%
same 23 filings, from disclosure
Filings, ttm
23
23 buys · 0 sells · 22 late
Median delay
9d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$229.9M
shares × price, as filed
Last traded
Aug 13
Filed Aug 21

Median ADV $230K across their filed names

Impact on $10,000 · 12M
$5,064 (-49.4%)
S&P 500 $11,725 (+17.2%) · 66.6 pts behind
$13.4k$8.9k$4.4kSep 22 2025Mar 23Sep 21
Jack Jiajia Huang S&P 500

Compounded across filings from disclosure dates · past 12 months

Open performance
Volume by month
$80.3M$40.2M$0Oct 2024Apr 2025Oct 2025Apr 2026Apr 2026 · buys $48.5MMay 2026 · buys $21.5MJun 2026 · buys $34.3MJul 2026 · buys $80.3MAug 2026 · buys $45.3M
Buys $229.9M Sells $0

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Consumer Defensive 23 filings

Sector per market data · by filing · past 12 months

Most traded names
COE 51Talk Online Education Group COE · 23 buys · 0 sells 23 filings
Recent filings
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 †
COEPURCHASE 51Talk Online Education Group View filing → $4.2M
155,220 sh across 5 lots
Exec May 15
Filed May 26 · 7:29 AM ET †
More filings →