Company profile
Cerebras Systems Inc. Insider Trading
CBRSEvery SEC Form 4 insider trading filing for Cerebras Systems Inc. (CBRS) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Semiconductors & Related Devices
- CIK
- 0002021728
- Filings
- 39
- Insiders
- 27
- Last filing
- 2026-08-21
Activity summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $5.0M across 22 transactions, with 8 offsetting purchases.
Quarterly balance
Buy and sell value by quarter, Q2 26 to Q3 26. Cerebras Systems Inc. insiders were net sellers in every quarter shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $197.9M.
90 day insight
Over the last 90 days, Cerebras Systems Inc. insiders bought $0 (8 transactions) and sold $5.0M (22 transactions).
- Most active insider: Lie Sean with 40 transactions totaling $155.1M.
- Largest single sale: $27.4M by Lie Sean on Aug 20, 2026.
- 33% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bearish — sales outpace buys.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 21, 2026 | Lie Sean | CBRS | Sale10b5 | 16,293 | $210.01 | $3.42M |
| Aug 21, 2026 | Lie Sean | CBRS | C | 16,293 | — | — |
| Aug 21, 2026 | Lie Sean | CBRS | Option Exercise | 16,293 | — | — |
| Aug 21, 2026 | Lie Sean | CBRS | Option Exercise | 16,293 | — | — |
| Aug 21, 2026 | Lie Sean | CBRS | C | 16,293 | — | — |
45 more transactions hidden
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