Benchmark Founders' Fund VIII-B, L.P. (CIK 1597399) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-26). Recent activity: Sell CBRS (963,818 shares), Buy CBRS (963,818 shares), Buy CBRS (2.4M shares), Sell CBRS (2.4M shares), Buy CBRS (2.2M shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-26 | Cerebras Systems Inc. (CBRS) | 10% Owner | Sell | 963,818 | $0 |
| 2026-08-26 | Cerebras Systems Inc. (CBRS) | 10% Owner | Buy | 963,818 | $0 |
| 2026-08-19 | Cerebras Systems Inc. (CBRS) | 10% Owner | Buy | 2.4M | $0 |
| 2026-08-19 | Cerebras Systems Inc. (CBRS) | 10% Owner | Sell | 2.4M | $0 |
| 2026-07-01 | Cerebras Systems Inc. (CBRS) | 10% Owner | Buy | 2.2M | $0 |
| 2026-07-01 | Cerebras Systems Inc. (CBRS) | 10% Owner | Sell | 2.2M | $0 |
来源：SEC Form 4 申报文件 · 截至 2026-08-26