Scott Blumberg sold $756k of CBLL
Chief Financial Officer at Ceribell, Inc.. 36,000 shares at an average of $21.00, traded Dec 22, 2025, filed Dec 29, 2025.
Score components
- +22RoleCFO
- +22Trade size$756k at market
- +10Share of holdings soldSold 29% of holdings
- +15Cluster7 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.
This signal so far: 1m -3.9%, 3m -17.0%, 6m -6.7%.
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 0001193125-25-334657, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Nov 20, 2025 | FTax withholding Common Stock10b5-1 | -687 | $13.64 | $9,371 | 118,842 | Dec 29, 2025 |
| Dec 22, 2025 | MOption exercise Common Stock10b5-1 | +4,752 | $3.65 | $17k | 123,594 | Dec 29, 2025 |
| Dec 22, 2025 | SOpen-market sale Common Stock10b5-1 | -4,752 | $21.00 | $100k | 118,842 | Dec 29, 2025 |
| Dec 22, 2025 | MOption exercise Common Stock10b5-1 | +11,529 | $3.65 | $42k | 130,371 | Dec 29, 2025 |
| Dec 22, 2025 | SOpen-market sale Common Stock10b5-1 | -11,529 | $21.00 | $242k | 118,842 | Dec 29, 2025 |
| Dec 22, 2025 | MOption exercise Common Stock10b5-1 | +19,719 | $4.70 | $93k | 138,561 | Dec 29, 2025 |
| Dec 22, 2025 | SOpen-market sale Common Stock10b5-1 | -19,719 | $21.00 | $414k | 118,842 | Dec 29, 2025 |
| Dec 22, 2025 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -4,752 | $0.00 | $0 | 0 | Dec 29, 2025 |
| Dec 22, 2025 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -11,529 | $0.00 | $0 | 0 | Dec 29, 2025 |
| Dec 22, 2025 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -19,719 | $0.00 | $0 | 6,869 | Dec 29, 2025 |
Related signals
Other insiders at Ceribell, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 0Weak | Ceribell, Inc. | Raymond Woo Chief Technology Officer | $119k 4,887 shares | -2% | |
| 2Weak | Ceribell, Inc. | Scott Blumberg Chief Financial Officer | $21k 846 shares | -1% | |
| 38Weak | Ceribell, Inc. | Xingjuan Chao President and CEO | $522k 20,846 shares | -3% | |
| 5Weak | Ceribell, Inc. | Raymond Woo Chief Technology Officer | $119k 4,887 shares | -2% | |
| 17Weak | Ceribell, Inc. | David Foehr Senior VP, Finance and PAO | $224k 9,255 shares | -26% | |
| 2Weak | Ceribell, Inc. | Scott Blumberg Chief Financial Officer | $16k 652 shares | -0% | |
| 30Weak | Ceribell, Inc. | Xingjuan Chao President and CEO | $973k 39,540 shares | -5% | |
| 43Moderate | Ceribell, Inc. | Scott Blumberg Chief Financial Officer | $37k 1,521 shares | -1% | |
| 51Moderate | Ceribell, Inc. | Xingjuan Chao President and CEO | $146k 6,068 shares | -1% | |
| 37Weak | Ceribell, Inc. | Raymond Woo Chief Technology Officer | $48k 1,979 shares | -1% |
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.