Butterfly Network (BFLY) 10% Owner Jonathan M. Rothberg Sells Shares

What Happened

• Jonathan M. Rothberg, a reported 10% owner of Butterfly Network (BFLY), sold a total of 3,126,453 shares in open‑market transactions between July 17 and July 21, 2026, generating approximately $20.75 million in proceeds. Breakdown by date: 1,195,857 shares on 2026‑07‑17 at a weighted $6.60 ($7,887,753); 1,177,276 shares on 2026‑07‑20 at a weighted $6.61 ($7,786,268); and 753,320 shares on 2026‑07‑21 at a weighted $6.74 ($5,074,288). These disposals were reported on Form 4 as sales (code S).

Key Details

• Transaction dates & weighted prices:
  • 2026‑07‑17: 1,195,857 shares @ $6.60 = $7,887,753 (shares sold at $6.435–$6.855 per footnote)
  • 2026‑07‑20: 1,177,276 shares @ $6.61 = $7,786,268 (shares sold at $6.44–$6.72 per footnote)
  • 2026‑07‑21: 753,320 shares @ $6.74 = $5,074,288 (shares sold at $6.505–$6.8755 per footnote)
• Total shares sold: 3,126,453; total proceeds: ≈ $20,748,309.
• Shares owned after transaction: Not disclosed in the information provided in your summary.
• Notable footnotes:
  • F1: Class B common stock automatically converted to Class A on a one‑for‑one basis upon sale.
  • F2: Transactions were effected pursuant to a Rule 10b5‑1 trading plan adopted March 13, 2026 for estate planning.
  • F3–F6: Each trade line reports weighted average prices and the price ranges for shares sold; detailed per‑price breakdowns are available upon request to the SEC staff, issuer, or a security holder.
  • F4: Dr. Rothberg is manager of several related LLCs and is spouse to Bonnie E. Gould Rothberg MD; he disclaims beneficial ownership of securities held by those entities except to the extent of his pecuniary interest.
• Filing timeliness: Form 4 was filed on 2026‑07‑21 for transactions dated 7/17–7/21; based on business‑day timing this filing appears to be timely.

Context

• These were outright sales (code S) under a preexisting 10b5‑1 plan—such plans are commonly used to schedule sales for estate/tax or diversification purposes and do not by themselves indicate a change in sentiment. As a 10% owner (not an exercising employee option event), these are large beneficial‑owner disposals rather than executive buys; retail investors should view them as scheduled/plan‑based sales unless additional information suggests otherwise.