Form 4: Cerebras Systems Insider Reports Stock Transaction
Insider Transaction (Form 4)
Foundation Capital Management Co. VIII, L.L.C. and 4 others reported changes in beneficial ownership of Cerebras Systems Inc. common stock on August 18, 2026.
Summary
- Conversion of derivative: acquired 1,738,913 Class A Common Stock on August 18, 2026; holds 1,738,913 after (Indirect).
- Conversion of derivative: acquired 37,453 Class A Common Stock on August 18, 2026; holds 37,453 after (Indirect).
- Conversion of derivative: acquired 136,426 Class A Common Stock on August 18, 2026; holds 136,426 after (Indirect).
- Other acquisition/disposition: disposed of 1,738,913 Class A Common Stock on August 18, 2026 (Indirect).
- Other acquisition/disposition: disposed of 37,453 Class A Common Stock on August 18, 2026 (Indirect).
- Other acquisition/disposition: disposed of 136,426 Class A Common Stock on August 18, 2026 (Indirect).
- Other acquisition/disposition: acquired 449,885 Class A Common Stock on August 18, 2026; holds 449,885 after (Indirect).
- Other acquisition/disposition: disposed of 449,885 Class A Common Stock on August 18, 2026 (Indirect).
- Other acquisition/disposition: acquired 28,373 Class A Common Stock on August 18, 2026; holds 29,741 after (Indirect).
- Other acquisition/disposition: disposed of 29,741 Class A Common Stock on August 18, 2026 (Indirect).
- Conversion of derivative: disposed of 1,738,913 Class B Common Stock on August 18, 2026; holds 10,433,479 after (Indirect).
- Conversion of derivative: disposed of 37,453 Class B Common Stock on August 18, 2026; holds 224,721 after (Indirect).
- Conversion of derivative: disposed of 136,426 Class B Common Stock on August 18, 2026; holds 818,559 after (Indirect).
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as routine: the reported changes are grants, option exercises, tax withholding or similar administrative transactions, which carry limited directional signal.
Insider Transactions
Foundation Capital Management Co. VIII, L.L.C. — 10% owner
Foundation Capital VIII, L.P. — 10% owner
Foundation Capital VIII Principals Fund, L.L.C. — 10% owner
Foundation Capital Management Co. LF II, L.L.C. — 10% owner
Foundation Capital Leadership Fund II, L.P. — 10% owner
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-18 | Conversion of derivative | Class A Common Stock | 1,738,913 | — | — | 1,738,913 |
| 2026-08-18 | Conversion of derivative | Class A Common Stock | 37,453 | — | — | 37,453 |
| 2026-08-18 | Conversion of derivative | Class A Common Stock | 136,426 | — | — | 136,426 |
| 2026-08-18 | Other acquisition/disposition | Class A Common Stock | 1,738,913 | — | — | 0 |
| 2026-08-18 | Other acquisition/disposition | Class A Common Stock | 37,453 | — | — | 0 |
| 2026-08-18 | Other acquisition/disposition | Class A Common Stock | 136,426 | — | — | 0 |
| 2026-08-18 | Other acquisition/disposition | Class A Common Stock | 449,885 | — | — | 449,885 |
| 2026-08-18 | Other acquisition/disposition | Class A Common Stock | 449,885 | — | — | 0 |
| 2026-08-18 | Other acquisition/disposition | Class A Common Stock | 28,373 | — | — | 29,741 |
| 2026-08-18 | Other acquisition/disposition | Class A Common Stock | 29,741 | — | — | 0 |
| 2026-08-18 | Conversion of derivative | Class B Common Stock | 1,738,913 | — | — | 10,433,479 |
| 2026-08-18 | Conversion of derivative | Class B Common Stock | 37,453 | — | — | 224,721 |
| 2026-08-18 | Conversion of derivative | Class B Common Stock | 136,426 | — | — | 818,559 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-18 | Conversion of derivative (1,738,913 shares) |
| 2026-08-18 | Conversion of derivative (37,453 shares) |
| 2026-08-18 | Conversion of derivative (136,426 shares) |
| 2026-08-18 | Other acquisition/disposition (1,738,913 shares) |
| 2026-08-18 | Other acquisition/disposition (37,453 shares) |
| 2026-08-18 | Other acquisition/disposition (136,426 shares) |
| 2026-08-18 | Other acquisition/disposition (449,885 shares) |
| 2026-08-18 | Other acquisition/disposition (449,885 shares) |
| 2026-08-18 | Other acquisition/disposition (28,373 shares) |
| 2026-08-18 | Other acquisition/disposition (29,741 shares) |
| 2026-08-18 | Conversion of derivative (1,738,913 shares) |
| 2026-08-18 | Conversion of derivative (37,453 shares) |
| 2026-08-18 | Conversion of derivative (136,426 shares) |
Keywords
insider transaction, Form 4, CBRS, Cerebras Systems Inc., neutral, Foundation Capital Management Co. VIII, L.L.C., Foundation Capital VIII, L.P., Foundation Capital VIII Principals Fund, L.L.C., Foundation Capital Management Co. LF II, L.L.C., Foundation Capital Leadership Fund II, L.P.
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