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 June 24, 2026.
Summary
- Conversion of derivative: acquired 1,391,131 Class A Common Stock on June 24, 2026; holds 1,391,131 after (Indirect).
- Conversion of derivative: acquired 29,963 Class A Common Stock on June 24, 2026; holds 29,963 after (Indirect).
- Conversion of derivative: acquired 109,141 Class A Common Stock on June 24, 2026; holds 109,141 after (Indirect).
- Conversion of derivative: acquired 347,782 Class A Common Stock on August 14, 2026; holds 1,738,913 after (Indirect).
- Conversion of derivative: acquired 7,490 Class A Common Stock on August 14, 2026; holds 37,453 after (Indirect).
- Conversion of derivative: acquired 27,285 Class A Common Stock on August 14, 2026; holds 136,426 after (Indirect).
- Other acquisition/disposition: disposed of 1,738,913 Class A Common Stock on August 14, 2026 (Indirect).
- Other acquisition/disposition: disposed of 37,453 Class A Common Stock on August 14, 2026 (Indirect).
- Other acquisition/disposition: disposed of 136,426 Class A Common Stock on August 14, 2026 (Indirect).
- Other acquisition/disposition: acquired 449,885 Class A Common Stock on August 14, 2026; holds 449,885 after (Indirect).
- Other acquisition/disposition: disposed of 449,885 Class A Common Stock on August 14, 2026 (Indirect).
- Other acquisition/disposition: acquired 1,368 Class A Common Stock on August 14, 2026; holds 1,368 after (Indirect).
- Conversion of derivative: disposed of 1,391,131 Class B Common Stock on June 24, 2026; holds 12,520,174 after (Indirect).
- Conversion of derivative: disposed of 29,963 Class B Common Stock on June 24, 2026; holds 269,664 after (Indirect).
- Conversion of derivative: disposed of 109,141 Class B Common Stock on June 24, 2026; holds 982,270 after (Indirect).
- Conversion of derivative: disposed of 347,782 Class B Common Stock on August 14, 2026; holds 12,172,392 after (Indirect).
- Conversion of derivative: disposed of 7,490 Class B Common Stock on August 14, 2026; holds 262,174 after (Indirect).
- Conversion of derivative: disposed of 27,285 Class B Common Stock on August 14, 2026; holds 954,985 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 |
|---|---|---|---|---|---|---|
| 2026-06-24 | Conversion of derivative | Class A Common Stock | 1,391,131 | — | — | 1,391,131 |
| 2026-06-24 | Conversion of derivative | Class A Common Stock | 29,963 | — | — | 29,963 |
| 2026-06-24 | Conversion of derivative | Class A Common Stock | 109,141 | — | — | 109,141 |
| 2026-08-14 | Conversion of derivative | Class A Common Stock | 347,782 | — | — | 1,738,913 |
| 2026-08-14 | Conversion of derivative | Class A Common Stock | 7,490 | — | — | 37,453 |
| 2026-08-14 | Conversion of derivative | Class A Common Stock | 27,285 | — | — | 136,426 |
| 2026-08-14 | Other acquisition/disposition | Class A Common Stock | 1,738,913 | — | — | 0 |
| 2026-08-14 | Other acquisition/disposition | Class A Common Stock | 37,453 | — | — | 0 |
| 2026-08-14 | Other acquisition/disposition | Class A Common Stock | 136,426 | — | — | 0 |
| 2026-08-14 | Other acquisition/disposition | Class A Common Stock | 449,885 | — | — | 449,885 |
| 2026-08-14 | Other acquisition/disposition | Class A Common Stock | 449,885 | — | — | 0 |
| 2026-08-14 | Other acquisition/disposition | Class A Common Stock | 1,368 | — | — | 1,368 |
| 2026-06-24 | Conversion of derivative | Class B Common Stock | 1,391,131 | — | — | 12,520,174 |
| 2026-06-24 | Conversion of derivative | Class B Common Stock | 29,963 | — | — | 269,664 |
| 2026-06-24 | Conversion of derivative | Class B Common Stock | 109,141 | — | — | 982,270 |
| 2026-08-14 | Conversion of derivative | Class B Common Stock | 347,782 | — | — | 12,172,392 |
| 2026-08-14 | Conversion of derivative | Class B Common Stock | 7,490 | — | — | 262,174 |
| 2026-08-14 | Conversion of derivative | Class B Common Stock | 27,285 | — | — | 954,985 |
Key Dates
| Date | Description |
|---|---|
| 2026-06-24 | Conversion of derivative (1,391,131 shares) |
| 2026-06-24 | Conversion of derivative (29,963 shares) |
| 2026-06-24 | Conversion of derivative (109,141 shares) |
| 2026-08-14 | Conversion of derivative (347,782 shares) |
| 2026-08-14 | Conversion of derivative (7,490 shares) |
| 2026-08-14 | Conversion of derivative (27,285 shares) |
| 2026-08-14 | Other acquisition/disposition (1,738,913 shares) |
| 2026-08-14 | Other acquisition/disposition (37,453 shares) |
| 2026-08-14 | Other acquisition/disposition (136,426 shares) |
| 2026-08-14 | Other acquisition/disposition (449,885 shares) |
| 2026-08-14 | Other acquisition/disposition (449,885 shares) |
| 2026-08-14 | Other acquisition/disposition (1,368 shares) |
| 2026-06-24 | Conversion of derivative (1,391,131 shares) |
| 2026-06-24 | Conversion of derivative (29,963 shares) |
| 2026-06-24 | Conversion of derivative (109,141 shares) |
| 2026-08-14 | Conversion of derivative (347,782 shares) |
| 2026-08-14 | Conversion of derivative (7,490 shares) |
| 2026-08-14 | Conversion of derivative (27,285 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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