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sellWeak cluster of 410b5-1 plan

Scott Blumberg sold $21k of CBLL

Chief Financial Officer at Ceribell, Inc.. 846 shares at an average of $25.00, traded Sep 15, 2026, filed Sep 17, 2026.

Warning score
2
Value
$21k
846 shares
Holdings after
146,600
-1% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CFO
    +22
  • Trade size
    $21k at market
    0
  • Share of holdings sold
    Sold 0.6% of holdings
    0
  • Cluster
    4 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -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 Sep 17, 2026: -5.5%SPY +2.3% · 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 0001193125-26-394789, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 15, 2026MOption exercise
Common Stock10b5-1
+846$9.41$7,961147,44625 d ago
Sep 15, 2026SOpen-market sale
Common Stock10b5-1
-846$25.00$21k146,60025 d ago
Sep 15, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-846$0.00$051,80225 d ago

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%
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%
26Weak
CBLLsell 710b5-1
Ceribell, Inc.
Xingjuan Chao
President and CEO
$681k
39,000 shares
-5%
10Weak
CBLLsell 710b5-1
Ceribell, Inc.
Rebecca B Robertson
director
$15k
827 shares
-4%
9Weak
CBLLsell 710b5-1
Ceribell, Inc.
David Foehr
Senior VP, Finance and PAO
$81k
4,560 shares
-22%
7Weak
CBLLsell 710b5-1
Ceribell, Inc.
Raymond Woo
Chief Technology Officer
$203k
11,112 shares
-7%

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.

Scott Blumberg sold $21k of CBLL | InsiderTell