24 insiders reported 591 Form 4 transactions for Cerebras Systems Inc. (CBRS) over the past 18 months (most recent 2026-09-23). Recent activity: Feldman Andrew D. (CEO, President) Buy 120 shares, Vishria Eric (Director) Buy 44,507 shares, Susan Lior (Director) Sell 451,115 shares, Susan Lior (Director) Buy 24,463 shares, Susan Lior (Director) Buy 23,734 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-23 | Feldman Andrew D. | CEO, President | Buy | 120 | $0 |
| 2026-09-23 | Vishria Eric | Director | Buy | 44,507 | $0 |
| 2026-09-17 | Susan Lior | Director | Sell | 451,115 | $0 |
| 2026-09-17 | Susan Lior | Director | Buy | 24,463 | $0 |
| 2026-09-17 | Susan Lior | Director | Buy | 23,734 | $0 |
| 2026-09-10 | Vishria Eric | Director | Buy | 44,507 | $0 |
| 2026-09-08 | Vassallo Steven | Director | Sell | 7,110 | $1.5M |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Buy | 37,441 | $0 |
| 2026-09-08 | Lie Sean | Chief Technology Officer | Buy | 46,141 | $0 |
| 2026-09-08 | Vassallo Steven | Director | Sell | 21,773 | $4.6M |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 1,100 | $219,098 |
| 2026-09-08 | Lie Sean | Chief Technology Officer | Sell | 16,038 | $0 |
| 2026-09-08 | Vassallo Steven | Director | Sell | 21,117 | $4.4M |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 3,324 | $708,145 |
| 2026-09-08 | Lie Sean | Chief Technology Officer | Sell | 53,460 | $11.2M |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 300 | $60,525 |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 900 | $182,673 |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 1,200 | $244,872 |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 800 | $165,040 |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 1,500 | $311,700 |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 1,707 | $356,490 |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 6,721 | $1.4M |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 6,153 | $1.3M |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 7,439 | $1.6M |
| 2026-09-08 | Feldman Andrew D. | CEO, President | Sell | 300 | $60,237 |
Source: SEC Form 4 filings · as of 2026-09-23