Ceribell CBLL
$26.59 +$0.58 (+2.23%)
Market closed · Nov 7, 6:40 am ET · Last extended-hours $26.59 0.00%
Open$25.67
Prev close$26.01
Day range$24.87 – $26.79
Volume436.4K
Market cap$1.03B
P/E (TTM)–
Dividend yield–
Ownership & positioning
Who holds it, who is betting against it, and where the big money is moving
Institutional ownership96.1%+0.17 pts vs. prior quarter
Institutions holding166+1 vs. prior quarter
Insider trades (recent)10 buys / 40 sellsNet selling
Short interest5.62% of floatDays to cover 4.8 · as of 15 Oct 2026
Short-sale volume share13.3%5-day average of daily volume
Short-sale volume as % of daily volume
Large-order net flow, last 20 sessions
Net of large-order buying minus selling, in USD. Over this window: −$1.68M (11 inflow days, 9 outflow days).
Net flow by order size, last 20 sessions
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 41.9% of shares outstanding.
Largest holders
By investor type
Reported short interest has risen from 5.32% to 5.62% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).
Recent institutional activity
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Wasatch Advisors LP | Mutual Fund | 2026/Q3 | +246,487 | 0.6% |
| Nuveen Asset Management LLC | Insurance Company | 2026/Q3 | +54,742 | 0.1% |
| FMR | Mutual Fund | 2026/Q3 | +840,982 | 14.8% |
| Millennium Management LLC | Hedge Fund | 2026/Q3 | +175,204 | 1.9% |
| Adage Capital Management, L.P. | Hedge Fund | 2026/Q3 | +143,249 | 2.3% |
| Franklin Resources | Mutual Fund | 2026/Q3 | +132,265 | 2.4% |
| Jane Street Group, LLC | Private Company | 2026/Q3 | +132,051 | 0.5% |
| BlackRock | Mutual Fund | 2026/Q3 | +122,938 | 5.0% |
| ExodusPoint Capital Management, LP | Hedge Fund | 2026/Q3 | +119,250 | 0.3% |
| Royce & Associates, LP | Mutual Fund | 2026/Q3 | +89,290 | 1.6% |
| Landscape Capital Management, LLC | Hedge Fund | 2026/Q3 | +78,769 | 0.3% |
| JPMorgan Chase & Co. | Public Company | 2026/Q3 | +71,384 | 0.4% |
| D. E. Shaw & Co., L.P. | Hedge Fund | 2026/Q3 | +64,321 | 0.4% |
| TimesSquare Capital Management, LLC | Mutual Fund | 2026/Q3 | +64,084 | 2.0% |
| Morgan Stanley | Public Company | 2026/Q3 | +57,129 | 0.7% |
Institutional buy/sell activity by reporting period, largest moves first.
Insider transactions
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 30 Sep 2026 | Raymond Woo | Chief Technology Officer | Derivative Exercise and Sale | -4,887 | $24.38 | 153,200 |
| 14 Sep 2026 | Scott Blumberg | Chief Financial Officer | Derivative Exercise and Sale | -846 | $25.00 | 96,682 |
| 14 Sep 2026 | Xingjuan Chao | Chief Executive Officer | Automatic Disposition | -20,846 | $25.03 | 961,447 |
| 7 Sep 2026 | Raymond Woo | Chief Technology Officer | Derivative Exercise and Sale | -4,887 | $24.33 | 153,200 |
| 7 Sep 2026 | Raymond Woo | Chief Technology Officer | Derivative Exercise and Retained | +8,389 | $2.24 | 153,200 |
| 7 Sep 2026 | David Foehr | Officer | Automatic Disposition | -1,755 | $24.26 | 34,144 |
| 7 Sep 2026 | David Foehr | Officer | Derivative Exercise and Sale | -7,500 | $24.25 | 34,144 |
| 1 Sep 2026 | Scott Blumberg | Chief Financial Officer | Derivative Exercise and Sale | -652 | $25.00 | 96,682 |
| 1 Sep 2026 | Xingjuan Chao | Chief Executive Officer | Automatic Disposition | -14,540 | $24.61 | 982,293 |
| 1 Sep 2026 | Xingjuan Chao | Chief Executive Officer | Derivative Exercise and Sale | -25,000 | $24.61 | 982,293 |
| 23 Aug 2026 | David Foehr | Officer | Automatic Disposition | -859 | $23.95 | 35,899 |
| 20 Aug 2026 | Scott Blumberg | Chief Financial Officer | Open Market Disposition | -1,521 | $24.02 | 96,682 |
| 20 Aug 2026 | Xingjuan Chao | Chief Executive Officer | Open Market Disposition | -6,068 | $24.02 | 996,833 |
| 20 Aug 2026 | Raymond Woo | Chief Technology Officer | Open Market Disposition | -1,979 | $24.02 | 144,811 |
| 20 Aug 2026 | Joseph Manni | Chief Revenue Officer | Open Market Disposition | -1,361 | $24.02 | 55,956 |
| 20 Aug 2026 | David Foehr | Officer | Open Market Disposition | -993 | $24.02 | 35,899 |
| 18 Aug 2026 | Scott Blumberg | Chief Financial Officer | Intent to Sell (Form 144) | -33,512 | $25.03 | – |
| 18 Aug 2026 | Xingjuan Chao | Chief Executive Officer | Intent to Sell (Form 144) | -31,415 | $25.03 | – |
| 18 Aug 2026 | Scott Blumberg | Chief Financial Officer | Derivative Exercise and Sale | -34,502 | $25.03 | 98,203 |
| 18 Aug 2026 | Xingjuan Chao | Chief Executive Officer | Automatic Disposition | -33,614 | $25.03 | 1,002,901 |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
Short interest, by report
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 2,155,957 | 5.6% | 4.8 |
| 30 Sep 2026 | 2,017,836 | 5.3% | 5.0 |
| 15 Sep 2026 | 1,818,916 | 4.7% | 6.1 |
| 31 Aug 2026 | 1,906,873 | 5.0% | 5.6 |
| 14 Aug 2026 | 2,102,642 | 5.5% | 4.2 |
| 31 Jul 2026 | 2,018,217 | 5.3% | 5.5 |
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