Founder Rothberg unloads another $5.1M in Butterfly Network stock, pushing four-day disposals to $20.6M
BFLY has more than doubled off its 52-week low of $1.32.
Summary
Founder Jonathan Rothberg sold $5.1 million in Butterfly Network shares on July 21, capping a four-day, $20.6 million disposal spree that adds to a wave of insider selling.
Key Events · Ownership and Investor Activity · BFLY
-
Founder Sells $5.1M on July 21
On July 21, 2026, Jonathan Rothberg sold 753,320 shares at a weighted average price of $6.7359, totaling approximately $5.1 million.
-
Four-Day Selling Spree Totals $20.6M
Combined with sales on July 17 and July 20, Rothberg has sold 3,126,453 shares for $20.6 million over four days, all under a 10b5-1 plan adopted March 13, 2026.
-
Insider Selling Wave Continues
This sale adds to a pattern of heavy insider selling: five insiders have sold $7.88 million in open-market transactions over the past 90 days, including $1.39 million by the CEO on July 20.
-
10b5-1 Plan Execution
All sales were executed pursuant to a pre-arranged 10b5-1 trading plan, which provides an affirmative defense against insider trading allegations but does not negate the negative signal of large-scale founder disposals.
Analysis · BFLY · Industrial Applications And Services
Butterfly Network founder Jonathan Rothberg sold an additional 753,320 shares on July 21 at $6.74, bringing his four-day selling spree to 3.1 million shares worth $20.6 million. This extends a pattern of heavy insider selling that has seen over $7.8 million in open-market sales by five insiders in the past 90 days, including the CEO. The sales were executed under a 10b5-1 plan adopted in March 2026, but the sheer volume and concentration in a short window raise questions about founder conviction even as the company reported strong Q1 results.
At the time of this filing, BFLY was trading at $6.80 on NYSE in the Industrial Applications And Services sector, with a market capitalization of approximately $1.8B. The 52-week trading range was $1.32 to $9.69. This filing was assessed with negative market sentiment and an importance score of 8 out of 10.