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sellWeak cluster of 710b5-1 plan

Josef Parvizi sold $537k of CBLL

director at Ceribell, Inc.. 25,000 shares at an average of $21.49, traded Dec 15, 2025, filed Dec 17, 2025.

Warning score
29
Value
$537k
25,000 shares
Holdings after
772,652
-3% from before
From 52-week low
+101%
low $10.92, close $21.90
From 52-week high
-23%
high $28.60, as of Dec 15, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $537k at market
    +19
  • Share of holdings sold
    Sold 3.1% of holdings
    0
  • Cluster
    7 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

CBLLOct 9, 2026 · close 23.63
Since filing Dec 17, 2025: +9.4%SPY +17.2% · excess -7.8%

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 0001193125-25-323313, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 15, 2025SOpen-market sale
Common Stockindirect: By Josef Parvizi Trust10b5-1
-25,000$21.49$537k772,652Dec 17, 2025

Related signals

Other insiders at Ceribell, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
0Weak
CBLLsell10b5-1
Ceribell, Inc.
Raymond Woo
Chief Technology Officer
$119k
4,887 shares
-2%
2Weak
CBLLsell 410b5-1
Ceribell, Inc.
Scott Blumberg
Chief Financial Officer
$21k
846 shares
-1%
38Weak
CBLLsell 410b5-1
Ceribell, Inc.
Xingjuan Chao
President and CEO
$522k
20,846 shares
-3%
5Weak
CBLLsell 410b5-1
Ceribell, Inc.
Raymond Woo
Chief Technology Officer
$119k
4,887 shares
-2%
17Weak
CBLLsell 410b5-1
Ceribell, Inc.
David Foehr
Senior VP, Finance and PAO
$224k
9,255 shares
-26%
2Weak
CBLLsell 410b5-1
Ceribell, Inc.
Scott Blumberg
Chief Financial Officer
$16k
652 shares
-0%
30Weak
CBLLsell 410b5-1
Ceribell, Inc.
Xingjuan Chao
President and CEO
$973k
39,540 shares
-5%
34Weak
CBLLsell 410b5-1
Ceribell, Inc.
Scott Blumberg
Chief Financial Officer
$756k
36,000 shares
-29%
36Weak
CBLLsell 710b5-1
Ceribell, Inc.
William W Burke
director
$721k
32,728 shares
-121%
15Weak
CBLLsell 710b5-1
Ceribell, Inc.
Rebecca B Robertson
director
$100k
5,000 shares
-37%

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.

Josef Parvizi sold $537k of CBLL | InsiderTell