Sean Lie sold $11M of CBRS
Chief Technology Officer at Cerebras Systems Inc.. 53,460 shares at an average of $210.16, traded Sep 4, 2026, filed Sep 8, 2026.
Score components
- +15RoleOfficer
- +25Trade size$11.2M at market
- +5Share of holdings soldSold 13% of holdings
- +15Cluster3 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
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 0001628280-26-060988, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 4, 2026 | CConversion Class A Common Stock | +46,141 | - | - | 415,067 | 34 d ago |
| Sep 4, 2026 | GGift Class A Common Stock | -16,038 | $0.00 | $0 | 399,029 | 34 d ago |
| Sep 4, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -53,460 | $210.16 | $11M | 345,569 | 34 d ago |
| Sep 4, 2026 | MOption exercise Stock Optionderivative | -46,141 | $0.00 | $0 | 289,021 | 34 d ago |
| Sep 4, 2026 | MOption exercise Class B Common Stockderivative | +46,141 | $0.00 | $0 | 7,629,133 | 34 d ago |
| Sep 4, 2026 | CConversion Class B Common Stockderivative | -46,141 | $0.00 | $0 | 7,582,992 | 34 d ago |
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% | |
| 60Notable | Cerebras Systems Inc. | Steven Vassallo director | $11M 50,000 shares | -23% |
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.