Vassallo Steven (CIK 1567929) reported 31 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-20). Recent activity: Buy CBRS (1.7M shares), Buy CBRS (37,453 shares), Buy CBRS (136,426 shares), Sell CBRS (1.7M shares), Sell CBRS (37,453 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Buy | 1.7M | $0 |
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Buy | 37,453 | $0 |
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Buy | 136,426 | $0 |
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Sell | 1.7M | $0 |
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Sell | 37,453 | $0 |
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Sell | 136,426 | $0 |
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Buy | 449,885 | $0 |
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Sell | 449,885 | $0 |
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Buy | 28,373 | $0 |
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Sell | 29,741 | $0 |
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Buy | 105,210 | $0 |
| 2026-08-20 | Cerebras Systems Inc. (CBRS) | Director | Buy | 54,126 | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Buy | 1.4M | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Buy | 29,963 | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Buy | 109,141 | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Buy | 347,782 | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Buy | 7,490 | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Buy | 27,285 | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Sell | 1.7M | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Sell | 37,453 | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Sell | 136,426 | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Buy | 449,885 | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Sell | 449,885 | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Buy | 1,368 | $0 |
| 2026-08-18 | Cerebras Systems Inc. (CBRS) | Director | Buy | 99,599 | $0 |
Source: SEC Form 4 filings · as of 2026-08-20