Updated Jul 16, 2026
Lie Sean has filed 2 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $1.71M.

As of May 15, 2026, Lie Sean is reported as the Chief Technology Officer of Cerebras Systems Inc., responsible for overseeing the company’s technology strategy, engineering leadership, and product development for Cerebras' AI hardware platform. Public biographical information about Lie Sean is limited in major public sources; the SEC filing context confirms the CTO role but does not provide a detailed career history. Cerebras Systems is a private AI hardware company focused on accelerating deep learning workloads.
| Role | Chief Technology Officer |
|---|---|
| Notability | 40/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 104 | $186.51 | $19K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 100 | $185.51 | $19K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 705 | $184.80 | $130K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 300 | $183.71 | $55K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 200 | $182.57 | $37K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 200 | $181.20 | $36K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 300 | $180.12 | $54K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 242 | $178.66 | $43K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 100 | $175.57 | $18K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 200 | $173.16 | $35K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 263 | $171.78 | $45K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 110 | $170.57 | $19K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 400 | $169.62 | $68K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 922 | $168.80 | $156K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 3.4K | $165.43 | $555K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | S — Open-market sale | 2.5K | $165.21 | $419K |
| 2026-06-29 | CBRS | Cerebras Systems Inc. | J — Other acquisition / disposition | 10.0K | — | |
| 2026-05-15 | CBRS | Cerebras Systems Inc. | J — Other acquisition / disposition | 180.6K | — | |
| 2026-05-15 | CBRS | Cerebras Systems Inc. | J — Other acquisition / disposition | 8.21M | — | |
| 2026-05-15 | CBRS | Cerebras Systems Inc. | F — Tax withholding / forfeiture | 96.1K | $185.00 | $17.78M |
As of May 15, 2026, Lie Sean is reported as the Chief Technology Officer of Cerebras Systems Inc., responsible for overseeing the company’s technology strategy, engineering leadership, and product development for Cerebras' AI hardware platform. Public biographical information about Lie Sean is limited in major public sources; the SEC filing context confirms the CTO role but doe…
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 16 open-market sales ($1.71M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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