Benchmark Founders' Fund VIII-B, L.P. — SEC Form 4 filings
SEC reporting owner CIK 1597399. 4 Form 4 filings on record with FilingPulse; latest filed 2026-08-26.
Transaction summary — filings shown
Covers all 4 filings on record, filed 2026-05-19 to 2026-08-26. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 17.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Cerebras Systems Inc. (CBRS) | 10% owner | 4 | — | — | 17 |
Form 4 filings — Benchmark Founders' Fund VIII-B, L.P.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-26 | 4 | Cerebras Systems Inc. (CBRS) jointly with Benchmark Capital Management Co. VIII, L.L.C., Benchmark Capital Partners VIII, L.P., Benchmark Founders' Fund VIII, L.P., Benchmark Capital Management Co. IX, L.L.C., Benchmark Capital Partners IX, L.P., Benchmark Founders' Fund IX, L.P., Benchmark Founders' Fund IX-A, L.P., Benchmark Founders' Fund IX-B, L.P. | Conversion (C): 963,818 @ $0 · Other (J): 963,818 @ $0 · Conversion (C): 963,818 (derivative) @ $0 | EDGAR |
| 2026-08-19 | 4 | Cerebras Systems Inc. (CBRS) jointly with Benchmark Capital Management Co. VIII, L.L.C., Benchmark Capital Partners VIII, L.P., Benchmark Founders' Fund VIII, L.P., Benchmark Capital Management Co. IX, L.L.C., Benchmark Capital Partners IX, L.P., Benchmark Founders' Fund IX, L.P., Benchmark Founders' Fund IX-A, L.P., Benchmark Founders' Fund IX-B, L.P. | Conversion (C): 2,402,352 @ $0 · Other (J): 2,402,352 @ $0 · Conversion (C): 2,402,352 (derivative) @ $0 | EDGAR |
| 2026-07-01 | 4 | Cerebras Systems Inc. (CBRS) jointly with Benchmark Capital Management Co. VIII, L.L.C., Benchmark Capital Partners VIII, L.P., Benchmark Founders' Fund VIII, L.P. | Conversion (C): 2,157,802 @ $0 · Other (J): 2,157,802 @ $0 · Conversion (C): 2,157,802 (derivative) @ $0 | EDGAR |
| 2026-05-19 | 4 | Cerebras Systems Inc. (CBRS) jointly with Benchmark Capital Management Co. VIII, L.L.C., Benchmark Capital Partners VIII, L.P., Benchmark Founders' Fund VIII, L.P., Benchmark Capital Management Co. IX, L.L.C., Benchmark Capital Partners IX, L.P., Benchmark Founders' Fund IX, L.P., Benchmark Founders' Fund IX-A, L.P., Benchmark Founders' Fund IX-B, L.P. | Conversion (C): 12,588,235 (derivative) @ $0 · Conversion (C): 1,425,394 (derivative) @ $0 · Conversion (C): 335,293 (derivative) @ $0 · Conversion (C): 30,968 (derivative) @ $0 · Conversion (C): 5,457 (derivative) @ $0 · Conversion (C): 689,990 (derivative) @ $0 · +2 more | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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