Sean Lie sold $4.7M of CBRS
Chief Technology Officer at Cerebras Systems Inc.. 21,257 shares at an average of $222.22, traded Aug 18, 2026, filed Aug 20, 2026.
Score components
- +15RoleOfficer
- +25Trade size$4.7M at market
- 0Share of holdings soldSold 3.4% of holdings
- +15Cluster6 insiders selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001628280-26-058312, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Aug 18, 2026 | CConversion Class A Common Stock | +616,706 | - | - | 616,706 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -1 | $214.85 | $215 | 616,705 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -1,059 | $215.67 | $228k | 615,646 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -1,807 | $216.40 | $391k | 613,839 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -1,344 | $217.58 | $292k | 612,495 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -1,670 | $218.54 | $365k | 610,825 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -1,894 | $219.58 | $416k | 608,931 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -3,723 | $220.43 | $821k | 605,208 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -3,409 | $221.47 | $755k | 601,799 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -1,599 | $222.42 | $356k | 600,200 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -492 | $223.54 | $110k | 599,708 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -202 | $224.52 | $45k | 599,506 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -335 | $225.51 | $76k | 599,171 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -457 | $226.46 | $103k | 598,714 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -347 | $227.37 | $79k | 598,367 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -95 | $228.53 | $22k | 598,272 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -147 | $229.46 | $34k | 598,125 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -47 | $230.67 | $11k | 598,078 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -243 | $231.57 | $56k | 597,835 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -277 | $232.62 | $64k | 597,558 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -224 | $233.31 | $52k | 597,334 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -590 | $234.47 | $138k | 596,744 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -301 | $235.50 | $71k | 596,443 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -203 | $236.43 | $48k | 596,240 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -11 | $237.23 | $2,610 | 596,229 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -9 | $238.78 | $2,149 | 596,220 | Aug 20, 2026 |
| Aug 18, 2026 | SOpen-market sale Class A Common Stock | -771 | $240.01 | $185k | 595,449 | Aug 20, 2026 |
| Aug 18, 2026 | CConversion Class B Common Stockderivative | -616,706 | - | - | 7,582,992 | Aug 20, 2026 |
Related signals
Other insiders at Cerebras Systems Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 23Weak | Cerebras Systems Inc. | Yagnesh Patel Chief Accounting Officer | $270k 1,320 shares | -8% | |
| 45Moderate | Cerebras Systems Inc. | Dhiraj Mallick Chief Operating Officer | $81M 396,000 shares | -100% | |
| 62Notable | Cerebras Systems Inc. | Robert Patrick Komin Jr. Chief Financial Officer | $6.6M 32,500 shares | -100% | |
| 30Weak | Cerebras Systems Inc. | Sean Lie Chief Technology Officer | $25M 120,000 shares | -28% | |
| 50Moderate | Cerebras Systems Inc. | Andrew D. Feldman CEO, President | $7.9M 37,441 shares | -69% | |
| 25Weak | Cerebras Systems Inc. | Sean Lie Chief Technology Officer | $11M 53,460 shares | -13% | |
| 60Notable | Cerebras Systems Inc. | Steven Vassallo director | $11M 50,000 shares | -23% | |
| 50Moderate | Cerebras Systems Inc. | Andrew D. Feldman CEO, President | $47M 237,559 shares | -93% | |
| 40Moderate | Cerebras Systems Inc. | Sean Lie Chief Technology Officer | $151M 726,540 shares | -67% | |
| 65Notable | Cerebras Systems Inc. | Dhiraj Mallick Chief Operating Officer | $8.6M 38,889 shares | -24% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.