Xingjuan Chao is CEO & President at Ceribell, Inc. (CBLL). They have made 6 open-market trades across 1 company since 2025, most recently 2026-09-15.
CIK 0002035784
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CBLL | 746,345 | $18.7M |
Shares reported on the most recent Form 4, priced at the 2026-09-17 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CBLL | SELL · 10b5-1 | 2026-09-15 | 2026-09-17 | $25.03 | $522K | -0.1% | — | — |
| CBLL | SELL · 10b5-1 | 2026-09-02 | 2026-09-04 | $24.61 | $973K | +3.8% | +3.1% | — |
| CBLL | SELL | 2026-08-21 | 2026-08-25 | $24.02 | $146K | +5.2% | +1.5% | — |
| CBLL | SELL · 10b5-1 | 2026-08-18 | 2026-08-20 | $25.03 | $841K | +2.2% | +0.8% | — |
| CBLL | SELL · 10b5-1 | 2026-08-03 | 2026-08-05 | $18.32 | $714K | +33.0% | +34.6% | — |
| CBLL | SELL · 10b5-1 | 2026-07-07 | 2026-07-09 | $19.90 | $776K | -8.5% | -0.9% | +20.0% |
| CBLL | SELL · 10b5-1 | 2026-06-08 | 2026-06-10 | $18.33 | $715K | -0.5% | +6.0% | +31.7% |
| CBLL | SELL | 2026-05-21 | 2026-05-26 | $18.00 | $109K | -1.8% | +6.1% | +28.8% |
| CBLL | SELL · 10b5-1 | 2026-05-05 | 2026-05-07 | $20.10 | $784K | -16.2% | -10.5% | -9.6% |
| CBLL | SELL · 10b5-1 | 2026-04-06 | 2026-04-08 | $18.40 | $718K | +13.7% | +8.6% | +6.6% |
| CBLL | SELL | 2026-03-03 | 2026-03-05 | $17.45 | $681K | +9.6% | +2.1% | -3.8% |
| CBLL | SELL | 2026-02-23 | 2026-02-25 | $19.79 | $41K | -2.9% | -5.6% | -0.2% |
| CBLL | SELL | 2026-02-04 | 2026-02-06 | $20.16 | $786K | +0.7% | -9.3% | +1.0% |
| CBLL | SELL | 2026-01-05 | 2026-01-07 | $21.27 | $1.7M | -5.2% | -10.9% | -21.0% |
| CBLL | SELL · 10b5-1 | 2025-12-04 | 2025-12-08 | $18.82 | $471K | -3.9% | +2.8% | -17.7% |
| CBLL | SELL · 10b5-1 | 2025-12-01 | 2025-12-03 | $16.59 | $415K | +22.3% | +19.0% | -2.0% |
| CBLL | SELL · 10b5-1 | 2025-11-21 | 2025-11-25 | $15.13 | $757K | +17.6% | +23.8% | +16.2% |
| CBLL | SELL · 10b5-1 | 2025-07-07 | 2025-07-09 | $17.70 | $443K | -7.6% | -21.6% | -28.3% |
| CBLL | SELL · 10b5-1 | 2025-06-03 | 2025-06-05 | $17.00 | $425K | -0.8% | -3.8% | -35.0% |
| CBLL | SELL · 10b5-1 | 2025-05-15 | 2025-05-19 | $16.96 | $424K | -6.5% | -1.0% | -32.3% |
| CBLL | SELL · 10b5-1 | 2025-04-22 | 2025-04-24 | $15.11 | $477K | +3.3% | +13.2% | +3.1% |
| CBLL | SELL · 10b5-1 | 2025-04-17 | 2025-04-21 | $15.03 | $187K | +7.5% | +15.9% | +0.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.