Lie Sean
Chief Technology Officer
Lie Sean has filed 6 SEC Form 4 filings (75 transaction rows) across 1 company, with disclosures dating back to 2026. 6 of those filings fall inside the rolling window. Most recent filing: Sep 28, 2026.
On the most recent filing, Lie Sean is listed as Chief Technology Officer at Cerebras Systems Inc. Inside the rolling window, Lie Sean reported no open-market purchases and 6 open-market sales totaling $193.8M in CBRS. The largest disclosed transaction in the window is a sale of 710,247 CBRS shares on Aug 20, 2026, worth $147.6M.
Companies traded
Other insiders at CBRS
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$193.8M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| CBRS | Chief Technology Officer | Sale | 120,000 | $25.1M | Sep 28 | SEC ↗ | |
| CBRS | Chief Technology Officer | Sale | 53,460 | $11.2M | Sep 9 | SEC ↗ | |
| CBRS | Chief Technology Officer | Sale | 710,247 | $147.6M | Aug 22 | SEC ↗ | |
| CBRS | Chief Technology Officer | Sale | 16,293 | $3.4M | Aug 22 | SEC ↗ | |
| CBRS | Chief Technology Officer | Sale | 21,257 | $4.7M | Aug 21 | SEC ↗ | |
| CBRS | Chief Technology Officer | Sale | 10,033 | $1.7M | Jun 29 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has Lie Sean made?
Lie Sean has filed 6 SEC Form 4 filings (75 transaction rows) across 1 company since 2026.
Which companies does Lie Sean trade?
Lie Sean has filed SEC Form 4 disclosures for 1 company, including CBRS.
When was Lie Sean's most recent SEC Form 4 filing?
Lie Sean's most recent SEC Form 4 filing on Tracefour is dated Sep 28, 2026.
What is Lie Sean's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Lie Sean is listed as Chief Technology Officer.
What is Lie Sean's total buy and sell value in the current window?
Inside the rolling retention window, Lie Sean bought $0 and sold $193.8M based on SEC Form 4 filings.
What was Lie Sean's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 710,247 CBRS shares on 2026-08-20, worth $147.6M, per SEC Form 4 filings.