Huang Jack Jiajia
Chief Executive Officer
Huang Jack Jiajia has filed 6 SEC Form 4 filings (27 transaction rows) across 1 company, with disclosures dating back to 2026. 6 of those filings fall inside the rolling window. Most recent filing: Jun 18, 2026.
On the most recent filing, Huang Jack Jiajia is listed as Chief Executive Officer at 51Talk Online Education Group. Inside the rolling window, Huang Jack Jiajia reported 26 open-market purchases totaling $22.3M in COE and no open-market sales. The largest disclosed transaction in the window is a purchase of 74,280 COE shares on May 22, 2026, worth $2.0M.
Companies traded
Other insiders at COE
Insider Buying
$22.3M
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| COE | Chief Executive Officer | Purchase | 23,340 | $521K | Jun 18 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 35,880 | $785K | Jun 18 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 17,580 | $401K | Jun 18 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 29,700 | $656K | Jun 18 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 89,160 | $1.8M | Jun 18 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 20,640 | $405K | Jun 18 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 74,280 | $2.0M | Jun 1 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 37,500 | $986K | Jun 1 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 45,840 | $1.2M | Jun 1 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 25,380 | $665K | Jun 1 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 47,280 | $1.2M | May 26 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 22,440 | $628K | May 26 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 11,340 | $305K | May 26 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 45,600 | $1.2M | May 26 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 28,560 | $770K | May 26 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 6,000 | $159K | May 19 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 28,560 | $728K | May 19 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 19,620 | $497K | May 19 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 30,000 | $757K | May 19 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 22,140 | $601K | May 13 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 24,180 | $605K | May 13 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 73,080 | $1.7M | May 13 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 21,480 | $507K | Apr 27 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 39,180 | $955K | Apr 27 | SEC ↗ | |
| COE | Chief Executive Officer | Purchase | 12,000 | $287K | Apr 27 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has Huang Jack Jiajia made?
Huang Jack Jiajia has filed 6 SEC Form 4 filings (27 transaction rows) across 1 company since 2026.
Which companies does Huang Jack Jiajia trade?
Huang Jack Jiajia has filed SEC Form 4 disclosures for 1 company, including COE.
When was Huang Jack Jiajia's most recent SEC Form 4 filing?
Huang Jack Jiajia's most recent SEC Form 4 filing on Tracefour is dated Jun 18, 2026.
What is Huang Jack Jiajia's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Huang Jack Jiajia is listed as Chief Executive Officer.
What is Huang Jack Jiajia's total buy and sell value in the current window?
Inside the rolling retention window, Huang Jack Jiajia bought $22.3M and sold $0 based on SEC Form 4 filings.
What was Huang Jack Jiajia's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 74,280 COE shares on 2026-05-22, worth $2.0M, per SEC Form 4 filings.