CBRS.NASDAQCerebras Systems INC
Form 4: Cerebras Systems CTO Sells Shares
Sentiment:
Insider Transaction (Form 4)
Sean Lie, Chief Technology Officer of Cerebras Systems Inc., sold 21,257 shares of common stock on August 18, 2026.
Summary
- Conversion of derivative: acquired 616,706 Class A Common Stock on August 18, 2026; holds 616,706 after (Direct).
- Open-market sale: disposed of 1 Class A Common Stock at $214.85 ($215) on August 18, 2026; holds 616,705 after (Direct).
- Open-market sale: disposed of 1,059 Class A Common Stock at $215.67 ($228,395) on August 18, 2026; holds 615,646 after (Direct).
- Open-market sale: disposed of 1,807 Class A Common Stock at $216.40 ($391,035) on August 18, 2026; holds 613,839 after (Direct).
- Open-market sale: disposed of 1,344 Class A Common Stock at $217.58 ($292,428) on August 18, 2026; holds 612,495 after (Direct).
- Open-market sale: disposed of 1,670 Class A Common Stock at $218.54 ($364,962) on August 18, 2026; holds 610,825 after (Direct).
- Open-market sale: disposed of 1,894 Class A Common Stock at $219.58 ($415,885) on August 18, 2026; holds 608,931 after (Direct).
- Open-market sale: disposed of 3,723 Class A Common Stock at $220.43 ($820,661) on August 18, 2026; holds 605,208 after (Direct).
- Open-market sale: disposed of 3,409 Class A Common Stock at $221.47 ($754,991) on August 18, 2026; holds 601,799 after (Direct).
- Open-market sale: disposed of 1,599 Class A Common Stock at $222.42 ($355,650) on August 18, 2026; holds 600,200 after (Direct).
- Open-market sale: disposed of 492 Class A Common Stock at $223.54 ($109,982) on August 18, 2026; holds 599,708 after (Direct).
- Open-market sale: disposed of 202 Class A Common Stock at $224.52 ($45,353) on August 18, 2026; holds 599,506 after (Direct).
- Open-market sale: disposed of 335 Class A Common Stock at $225.51 ($75,546) on August 18, 2026; holds 599,171 after (Direct).
- Open-market sale: disposed of 457 Class A Common Stock at $226.46 ($103,492) on August 18, 2026; holds 598,714 after (Direct).
- Open-market sale: disposed of 347 Class A Common Stock at $227.37 ($78,897) on August 18, 2026; holds 598,367 after (Direct).
- Open-market sale: disposed of 95 Class A Common Stock at $228.53 ($21,710) on August 18, 2026; holds 598,272 after (Direct).
- Open-market sale: disposed of 147 Class A Common Stock at $229.46 ($33,731) on August 18, 2026; holds 598,125 after (Direct).
- Open-market sale: disposed of 47 Class A Common Stock at $230.67 ($10,841) on August 18, 2026; holds 598,078 after (Direct).
- Open-market sale: disposed of 243 Class A Common Stock at $231.57 ($56,272) on August 18, 2026; holds 597,835 after (Direct).
- Open-market sale: disposed of 277 Class A Common Stock at $232.62 ($64,436) on August 18, 2026; holds 597,558 after (Direct).
- Open-market sale: disposed of 224 Class A Common Stock at $233.31 ($52,261) on August 18, 2026; holds 597,334 after (Direct).
- Open-market sale: disposed of 590 Class A Common Stock at $234.47 ($138,337) on August 18, 2026; holds 596,744 after (Direct).
- Open-market sale: disposed of 301 Class A Common Stock at $235.50 ($70,886) on August 18, 2026; holds 596,443 after (Direct).
- Open-market sale: disposed of 203 Class A Common Stock at $236.43 ($47,995) on August 18, 2026; holds 596,240 after (Direct).
- Open-market sale: disposed of 11 Class A Common Stock at $237.23 ($2,610) on August 18, 2026; holds 596,229 after (Direct).
- Open-market sale: disposed of 9 Class A Common Stock at $238.78 ($2,149) on August 18, 2026; holds 596,220 after (Direct).
- Open-market sale: disposed of 771 Class A Common Stock at $240.01 ($185,048) on August 18, 2026; holds 595,449 after (Direct).
- Conversion of derivative: disposed of 616,706 Class B Common Stock on August 18, 2026; holds 7,582,992 after (Direct).
Sentiment
Score: 3
Explanation: StockSavvy.ai views this as a mildly negative signal: an insider sold $4,723,765 of stock on the open market.
Insider Transactions
Sean Lie — Officer (Chief Technology Officer)
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-18 | Conversion of derivative | Class A Common Stock | 616,706 | — | — | 616,706 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 1 | $215 | $215 | 616,705 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 1,059 | $216 | $228.4K | 615,646 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 1,807 | $216 | $391.0K | 613,839 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 1,344 | $218 | $292.4K | 612,495 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 1,670 | $219 | $365.0K | 610,825 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 1,894 | $220 | $415.9K | 608,931 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 3,723 | $220 | $820.7K | 605,208 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 3,409 | $221 | $755.0K | 601,799 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 1,599 | $222 | $355.6K | 600,200 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 492 | $224 | $110.0K | 599,708 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 202 | $225 | $45.4K | 599,506 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 335 | $226 | $75.5K | 599,171 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 457 | $226 | $103.5K | 598,714 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 347 | $227 | $78.9K | 598,367 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 95 | $229 | $21.7K | 598,272 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 147 | $229 | $33.7K | 598,125 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 47 | $231 | $10.8K | 598,078 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 243 | $232 | $56.3K | 597,835 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 277 | $233 | $64.4K | 597,558 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 224 | $233 | $52.3K | 597,334 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 590 | $234 | $138.3K | 596,744 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 301 | $236 | $70.9K | 596,443 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 203 | $236 | $48.0K | 596,240 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 11 | $237 | $2.6K | 596,229 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 9 | $239 | $2.1K | 596,220 |
| 2026-08-18 | Open-market sale | Class A Common Stock | 771 | $240 | $185.0K | 595,449 |
| 2026-08-18 | Conversion of derivative | Class B Common Stock | 616,706 | — | — | 7,582,992 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-18 | Conversion of derivative (616,706 shares) |
| 2026-08-18 | Open-market sale (1 shares) |
| 2026-08-18 | Open-market sale (1,059 shares) |
| 2026-08-18 | Open-market sale (1,807 shares) |
| 2026-08-18 | Open-market sale (1,344 shares) |
| 2026-08-18 | Open-market sale (1,670 shares) |
| 2026-08-18 | Open-market sale (1,894 shares) |
| 2026-08-18 | Open-market sale (3,723 shares) |
| 2026-08-18 | Open-market sale (3,409 shares) |
| 2026-08-18 | Open-market sale (1,599 shares) |
| 2026-08-18 | Open-market sale (492 shares) |
| 2026-08-18 | Open-market sale (202 shares) |
| 2026-08-18 | Open-market sale (335 shares) |
| 2026-08-18 | Open-market sale (457 shares) |
| 2026-08-18 | Open-market sale (347 shares) |
| 2026-08-18 | Open-market sale (95 shares) |
| 2026-08-18 | Open-market sale (147 shares) |
| 2026-08-18 | Open-market sale (47 shares) |
| 2026-08-18 | Open-market sale (243 shares) |
| 2026-08-18 | Open-market sale (277 shares) |
| 2026-08-18 | Open-market sale (224 shares) |
| 2026-08-18 | Open-market sale (590 shares) |
| 2026-08-18 | Open-market sale (301 shares) |
| 2026-08-18 | Open-market sale (203 shares) |
| 2026-08-18 | Open-market sale (11 shares) |
| 2026-08-18 | Open-market sale (9 shares) |
| 2026-08-18 | Open-market sale (771 shares) |
| 2026-08-18 | Conversion of derivative (616,706 shares) |
Keywords
insider transaction, Form 4, CBRS, Cerebras Systems Inc., bearish, Sean Lie
Disclaimer:The information provided here is for general informational purposes only and does not constitute financial advice, recommendation, or endorsement of any kind. It may contain errors or omissions. You should not rely on this information to make financial decisions. Always seek the advice of a qualified financial professional before making any investment or financial decisions. Use of this information is at your own risk.