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buyWeak cluster of 2

Larry Robbins bought $64k of BFLY

director, owner at Butterfly Network, Inc.. 21,370 shares at an average of $3.02, traded Dec 11, 2025, filed Dec 15, 2025.

Conviction score
39
Value
$64k
21,370 shares
Holdings after
14,335,055
+0% from before
From 52-week low
+132%
low $1.33, close $3.08
From 52-week high
-36%
high $4.82, as of Dec 11, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $64k at market
    +8
  • Relative to holdings
    Under 1% of holdings (0.1%)
    -5
  • Price context
    36% below the 52-week high
    +8
  • Cluster
    2 insiders buying within 14 days
    +8
  • Repeat buying
    3 buys in 90 days
    +5
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

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 +53.7%, 3m +21.4%, 6m +74.8%.

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 9, 2026 · close 8.25
Since filing Dec 15, 2025: +156.2%SPY +15.5% · excess +140.7%

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 0000905148-25-004355, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 11, 2025POpen-market purchase
Class A Common Stockindirect: See footnotes
+21,370$3.02$64k14,335,055Dec 15, 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.

Larry Robbins bought $64k of BFLY | InsiderTell