Benchmark Founders' Fund VIII-B, L.P. (CIK 1597399) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-01). Recent activity: Buy CBRS (2.2M shares), Sell CBRS (2.2M shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-01 | Cerebras Systems Inc. (CBRS) | Insider | Buy | 2.2M | $0 |
| 2026-07-01 | Cerebras Systems Inc. (CBRS) | Insider | Sell | 2.2M | $0 |
Source: SEC Form 4 filings · as of 2026-07-01