CBRS Insider Trading Activity and SEC Form 4 Filings
CBRS insider trading summary
Over the past 12 months, insiders at Cerebras Systems Inc. (CBRS) reported 336 sales worth $415.3M by 7 insiders and no open-market purchases on SEC Form 4. Net insider selling was $415.3M.
Latest CBRS insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Oct 27, 2026 | Sean Lie | Chief Technology Officer | Sell | $1.7M (14,500 @ $116.82) |
| Oct 27, 2026 | Sean Lie | Chief Technology Officer | Sell | $5.2M (45,400 @ $115.46) |
| Oct 27, 2026 | Sean Lie | Chief Technology Officer | Sell | $11K (100 @ $113.92) |
| Sep 29, 2026 | Dhiraj Mallick | Chief Operating Officer | Sell | $8.6M (41,278 @ $209.33) |
| Sep 29, 2026 | Dhiraj Mallick | Chief Operating Officer | Sell | $8.7M (41,391 @ $211.29) |
| Sep 29, 2026 | Dhiraj Mallick | Chief Operating Officer | Sell | $9.8M (46,427 @ $210.27) |
| Sep 29, 2026 | Dhiraj Mallick | Chief Operating Officer | Sell | $3.9M (18,274 @ $212.20) |
| Sep 29, 2026 | Dhiraj Mallick | Chief Operating Officer | Sell | $4.3M (20,714 @ $208.38) |
| Sep 29, 2026 | Dhiraj Mallick | Chief Operating Officer | Sell | $127K (598 @ $212.93) |
| Sep 29, 2026 | Dhiraj Mallick | Chief Operating Officer | Sell | $2.0M (9,652 @ $207.06) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.