Robert Patrick Komin Jr. sold $6.6M of CBRS
Chief Financial Officer at Cerebras Systems Inc.. 32,500 shares at an average of $203.53, traded Sep 29, 2026, filed Sep 30, 2026.
Score components
- +22RoleCFO
- +25Trade size$6.6M at market
- +20Share of holdings soldSold 100% of holdings
- +15Cluster4 insiders selling within 14 days
- -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 0001628280-26-064044, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -1,830 | $211.79 | $388k | 30,670 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -2,771 | $211.03 | $585k | 27,899 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -2,802 | $210.02 | $588k | 25,097 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -2,197 | $208.98 | $459k | 22,900 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -700 | $207.83 | $145k | 22,200 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -800 | $206.68 | $165k | 21,400 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -600 | $205.47 | $123k | 20,800 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -1,600 | $204.26 | $327k | 19,200 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -800 | $203.48 | $163k | 18,400 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -400 | $201.96 | $81k | 18,000 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -11,200 | $201.22 | $2.3M | 6,800 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -1,130 | $199.80 | $226k | 5,670 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -870 | $198.70 | $173k | 4,800 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -685 | $197.48 | $135k | 4,115 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -1,115 | $195.61 | $218k | 3,000 | 15 d ago |
| Sep 29, 2026 | SOpen-market sale Class A Common Stock10b5-1 | -3,000 | $194.92 | $585k | 0 | 15 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% | |
| 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% | |
| 55Moderate | Cerebras Systems Inc. | Sean Lie Chief Technology Officer | $4.7M 21,257 shares | -3% | |
| 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.