COE
Huang Jack Jiajia, COE's CEO, spent $1.04M of their own money on 39,720 shares at $26. Their tracked buys have a 8% win rate.
+$1.04M
39,720 sh @ $26
Huang Jack Jiajia
Director, Chief Executive Officer, 10% Owner · SEC CIK 2029760
Insider at
COE 51Talk Online Education Group
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Buy track record
How this insider's open-market purchases have performed8%
of buys now in profit
4 up · 45 down
Avg return since buy−17.8%
Median return−20.7%
Best trade+9.3%
Worst trade−29.9%
Buys scored49
Average return by holding period — separates good entry timing from riding one long winner
After 1 month
+7.4%
63% won · 32 trades
After 3 months
—
not elapsed yet
After 6 months
—
not elapsed yet
After 12 months
—
not elapsed yet
| Date | Company | 90d trend | Buy price | Value | ΔOwn | 1M | 3M | 6M | 12M | To date |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 5, 2026 | COE | $23 | $334.3K | +0.1% | — | — | — | — | −10.5% | |
| Jun 4, 2026 | COE | $24 | $363.8K | +0.1% | — | — | — | — | −13.6% | |
| Jun 3, 2026 | COE | $25 | $218.5K | — | — | — | — | — | −18.6% | |
| Jun 2, 2026 | COE | $25 | $1.43M | +0.2% | — | — | — | — | −21.2% | |
| Jun 1, 2026 | COE | $26 | $1.24M | +0.2% | — | — | — | — | −20.7% | |
| May 29, 2026 | COE | $26 | $546.7K | +0.1% | — | — | — | — | −21.8% | |
| May 28, 2026 | COE | $26 | $664.7K | +0.1% | — | — | — | — | −21.9% | |
| May 27, 2026 | COE | $26 | $1.21M | +0.2% | — | — | — | — | −23.8% | |
| May 26, 2026 | COE | $26 | $985.5K | +0.1% | — | — | — | — | −23.4% | |
| May 22, 2026 | COE | $27 | $1.99M | +0.3% | — | — | — | — | −23.7% | |
| May 21, 2026 | COE | $27 | $770.3K | +0.1% | — | — | — | — | −25.4% | |
| May 20, 2026 | COE | $27 | $1.24M | +0.2% | — | — | — | — | −26.4% | |
| May 19, 2026 | COE | $27 | $304.7K | — | — | — | — | — | −24.9% | |
| May 18, 2026 | COE | $28 | $628.3K | +0.1% | — | — | — | — | −26.8% | |
| May 15, 2026 | COE | $26 | $1.25M | +0.2% | — | — | — | — | −29.9% | |
| May 14, 2026 | COE | $25 | $756.6K | +0.1% | — | — | — | — | −18.0% | |
| May 13, 2026 | COE | $25 | $496.8K | +0.1% | — | — | — | — | −21.6% | |
| May 12, 2026 | COE | $26 | $728.3K | +0.1% | −20.5% | — | — | — | −20.5% | |
| May 11, 2026 | COE | $26 | $158.5K | — | −18.5% | — | — | — | −25.4% | |
| May 8, 2026 | COE | $23 | $1.72M | +0.3% | −13.0% | — | — | — | −18.6% | |
| May 7, 2026 | COE | $25 | $604.7K | +0.1% | −8.9% | — | — | — | −14.7% | |
| May 6, 2026 | COE | $27 | $601.3K | +0.1% | −17.3% | — | — | — | −22.5% | |
| May 5, 2026 | COE | $28 | $324.9K | — | −19.7% | — | — | — | −28.1% | |
| May 4, 2026 | COE | $29 | $2.41M | +0.3% | −18.2% | — | — | — | −29.3% | |
| May 1, 2026 | COE | $29 | $1.53M | +0.2% | −10.9% | — | — | — | −29.3% | |
| Apr 30, 2026 | COE | $28 | $685.7K | +0.1% | −11.5% | — | — | — | −29.8% | |
| Apr 29, 2026 | COE | $28 | $259.2K | — | −8.0% | — | — | — | −28.0% | |
| Apr 28, 2026 | COE | $27 | $1.74M | +0.2% | −7.7% | — | — | — | −27.9% | |
| Apr 27, 2026 | COE | $26 | $4.24M | +0.6% | +0.3% | — | — | — | −23.6% | |
| Apr 24, 2026 | COE | $26 | $1.04M | +0.2% | +2.2% | — | — | — | −21.8% | |
| Apr 23, 2026 | COE | $26 | $1.9M | +0.3% | +1.5% | — | — | — | −22.2% | |
| Apr 22, 2026 | COE | $24 | $286.8K | — | +13.7% | — | — | — | −13.2% | |
| Apr 21, 2026 | COE | $24 | $954.8K | +0.2% | +12.3% | — | — | — | −16.3% | |
| Apr 20, 2026 | COE | $24 | $506.7K | +0.1% | +16.6% | — | — | — | −14.3% | |
| Apr 17, 2026 | COE | $26 | $613.8K | +0.1% | +14.4% | — | — | — | −16.2% | |
| Apr 16, 2026 | COE | $26 | $1.56M | +0.2% | +10.0% | — | — | — | −19.4% | |
| Apr 15, 2026 | COE | $26 | $4.28M | +0.7% | +10.6% | — | — | — | −22.5% | |
| Apr 14, 2026 | COE | $24 | $1.49M | +0.2% | −1.6% | — | — | — | −19.3% | |
| Apr 13, 2026 | COE | $22 | $1.62M | +0.3% | +15.2% | — | — | — | −9.7% | |
| Apr 9, 2026 | COE | $22 | $3.46M | +0.6% | +25.6% | — | — | — | −6.3% | |
| Apr 8, 2026 | COE | $22 | $861.9K | +0.2% | +15.8% | — | — | — | −5.7% | |
| Apr 7, 2026 | COE | $21 | $431.6K | +0.1% | +10.8% | — | — | — | −5.4% | |
| Apr 6, 2026 | COE | $23 | $2.7M | +0.5% | +15.8% | — | — | — | −10.3% | |
| Apr 2, 2026 | COE | $22 | $3.79M | +0.7% | +26.9% | — | — | — | −10.3% | |
| Apr 1, 2026 | COE | $21 | $6.65M | +1.3% | +25.3% | — | — | — | −11.4% | |
| Mar 31, 2026 | COE | $19 | $3.72M | +0.8% | +43.1% | — | — | — | +1.2% | |
| Mar 30, 2026 | COE | $19 | $6.25M | +1.4% | +51.1% | — | — | — | +6.0% | |
| Mar 27, 2026 | COE | $19 | $5.84M | +1.3% | +39.4% | — | — | — | +6.6% | |
| Mar 26, 2026 | COE | $18 | $1.63M | +0.4% | +43.0% | — | — | — | +9.3% |
How this is calculated. We score only open-market purchases (SEC code
P) — the buys that carry real signal. Each trade's return is measured from the adjusted closing price on the purchase date to the latest close, accounting for stock splits and dividends. The 1M/3M/6M/12M columns show the same trade's return after each fixed holding period; a dash means that horizon hasn't elapsed yet or isn't priceable. Sales are excluded because insiders sell for many routine reasons. With only 49 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$78.98M
49 trades
Open-market sells
$0
0 trades
Net flow
+$78.98M
Net buying
Total filings
51
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstCOE
Huang Jack Jiajia, COE's CEO, spent $1.9M of their own money on 73,740 shares at $26. Their tracked buys have a 8% win rate.
+$1.9M
73,740 sh @ $26
COE
Huang Jack Jiajia, COE's CEO, spent $286.8K of their own money on 12,000 shares at $24. Their tracked buys have a 8% win rate.
+$286.8K
12,000 sh @ $24
COE
Huang Jack Jiajia, COE's CEO, spent $954.8K of their own money on 39,180 shares at $24. Their tracked buys have a 8% win rate.
+$954.8K
39,180 sh @ $24
COE
Huang Jack Jiajia, COE's CEO, spent $506.7K of their own money on 21,480 shares at $24. Their tracked buys have a 8% win rate.
+$506.7K
21,480 sh @ $24
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COE
Huang Jack Jiajia, COE's CEO, spent $613.8K of their own money on 24,060 shares at $26. Their tracked buys have a 8% win rate.
+$613.8K
24,060 sh @ $26
COE
Huang Jack Jiajia, COE's CEO, spent $1.56M of their own money on 60,420 shares at $26. Their tracked buys have a 8% win rate.
+$1.56M
60,420 sh @ $26
COE
Huang Jack Jiajia, COE's CEO, spent $4.28M of their own money on 166,560 shares at $26, growing their stake 1%. Their tracked buys have a 8% win rate.
+$4.28M
166,560 sh @ $26
COE
Huang Jack Jiajia, COE's CEO, spent $1.49M of their own money on 61,200 shares at $24. Their tracked buys have a 8% win rate.
+$1.49M
61,200 sh @ $24
COE
Huang Jack Jiajia, COE's CEO, spent $1.62M of their own money on 72,720 shares at $22. Their tracked buys have a 8% win rate.
+$1.62M
72,720 sh @ $22
COE
Huang Jack Jiajia, COE's CEO, spent $3.46M of their own money on 159,420 shares at $22, growing their stake 1%. Their tracked buys have a 8% win rate.
+$3.46M
159,420 sh @ $22
COE
Huang Jack Jiajia, COE's CEO, spent $861.9K of their own money on 39,720 shares at $22. Their tracked buys have a 8% win rate.
+$861.9K
39,720 sh @ $22
COE
Huang Jack Jiajia, COE's CEO, spent $431.6K of their own money on 20,280 shares at $21. Their tracked buys have a 8% win rate.
+$431.6K
20,280 sh @ $21
COE
Huang Jack Jiajia, COE's CEO, spent $2.7M of their own money on 117,660 shares at $23. Their tracked buys have a 8% win rate.
+$2.7M
117,660 sh @ $23
COE
Huang Jack Jiajia, COE's CEO, spent $3.79M of their own money on 170,520 shares at $22, growing their stake 1%. Their tracked buys have a 8% win rate.
+$3.79M
170,520 sh @ $22
COE
Huang Jack Jiajia, COE's CEO, spent $6.65M of their own money on 309,660 shares at $21, growing their stake 1%. Their tracked buys have a 8% win rate.
+$6.65M
309,660 sh @ $21
COE
Huang Jack Jiajia, COE's CEO, spent $3.72M of their own money on 195,060 shares at $19, growing their stake 1%. Their tracked buys have a 8% win rate.
+$3.72M
195,060 sh @ $19
COE
+$0
275,000 sh
COE
Huang Jack Jiajia, COE's CEO, spent $6.25M of their own money on 337,740 shares at $19, growing their stake 1%. Their tracked buys have a 8% win rate.
+$6.25M
337,740 sh @ $19
COE
Huang Jack Jiajia, COE's CEO, spent $5.84M of their own money on 301,620 shares at $19, growing their stake 1%. Their tracked buys have a 8% win rate.
+$5.84M
301,620 sh @ $19
COE
Huang Jack Jiajia, COE's CEO, spent $1.63M of their own money on 88,560 shares at $18. Their tracked buys have a 8% win rate.
+$1.63M
88,560 sh @ $18
Frequently asked questions
How is Huang Jack Jiajia's win rate calculated?
We take every open-market purchase (SEC code P) we can match to a stock price, then compare the split- and dividend-adjusted price on the purchase date to the most recent close. The win rate is the share of those buys currently trading above the purchase price. Sales and share grants are not scored.
Why are some buys not included in the score?
A purchase is excluded if we can't price it — for example if the ticker is missing from the filing, the company has been delisted, or the security isn't a common stock we can match to market data. Excluded counts are shown next to the scored total.
What do the 1M / 3M / 6M / 12M columns mean?
They show each purchase's return after a fixed holding period — one, three, six, and twelve months from the buy date — using split- and dividend-adjusted prices. This separates good entry timing from simply holding a long-running winner. A dash means that horizon hasn't elapsed yet for that trade, or the stock couldn't be priced at that date.
Does a high win rate mean I should copy this insider?
No. Past performance does not predict future results, sample sizes are often small, and an insider's edge in their own company doesn't transfer to yours. This is context, not a recommendation. InsiderSource is not investment advice.
Where does this data come from?
Trades come from Huang Jack Jiajia's SEC Form 4 filings on EDGAR. Prices come from public market data and are split/dividend-adjusted. Always verify against the original filings before acting.