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sellWeak cluster of 210b5-1 plan

Jonathan M Rothberg sold $313k of BFLY

director, owner at Butterfly Network, Inc.. 101,796 shares at an average of $3.08, traded Dec 4, 2025, filed Dec 8, 2025.

Warning score
22
Value
$313k
101,796 shares
Holdings after
543,601
-16% from before
From 52-week low
+130%
low $1.33, close $3.06
From 52-week high
-37%
high $4.82, as of Dec 4, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $313k at market
    +14
  • Share of holdings sold
    Sold 16% of holdings
    +5
  • Cluster
    2 insiders selling within 14 days
    +8
  • 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.

This signal so far: 1m +34.1%, 3m +19.7%, 6m +52.2%.

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.

BFLYOct 13, 2026 · close 8.10
Since filing Dec 8, 2025: +158.0%SPY +15.0% · excess +142.9%

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 0001104659-25-119416, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 4, 2025SOpen-market sale
Class A Common Stockindirect: By GBR TR, LLC10b5-1
-64,198$3.08$197k581,199Dec 8, 2025
Dec 5, 2025SOpen-market sale
Class A Common Stockindirect: By GBR TR, LLC10b5-1
-37,598$3.07$116k543,601Dec 8, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
Pro nowfree Oct 15, 2026
BFLYsell 210b5-1
Butterfly Network, Inc.
Joseph Devivo
President & CEO
$359k
35,790 shares
-0%
32Weak
BFLYsell 2
Butterfly Network, Inc.
Megan Carlson
CAO and SVP, Finance
$88k
10,114 shares
-2%
20Weak
BFLYsell 210b5-1
Butterfly Network, Inc.
Joseph Devivo
President & CEO
$60k
5,980 shares
-0%
40Moderate
BFLYsell 3
Butterfly Network, Inc.
Megan Carlson
CAO and SVP, Finance
$101k
13,804 shares
-3%
55Moderate
BFLYsell 3
Butterfly Network, Inc.
Steve Cashman
Chief Business Officer
$1.0M
140,112 shares
-9%
30Weak
BFLYsell 3
Butterfly Network, Inc.
Nicholas Caezza
Deputy General Counsel
$14k
1,709 shares
-1%
60Notable
BFLYsell 4
Butterfly Network, Inc.
Larry Robbins
director
$21M
2,297,733 shares
-18%
50Moderate
BFLYbuy
Butterfly Network, Inc.
S. Louise Phanstiel
director
$1000k
115,200 shares
+62%
41Moderate
BFLYsell 410b5-1
Butterfly Network, Inc.
Joseph Devivo
President & CEO
$684k
68,346 shares
-1%
40Moderate
BFLYsell 4
Butterfly Network, Inc.
Nicholas Caezza
Deputy General Counsel
$98k
10,000 shares
-3%

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.

Jonathan M Rothberg sold $313k of BFLY | InsiderTell