Butterfly Network, Inc. (NYSE: BFLY) insider reports 10b5-1 share sales
Rhea-AI Filing Summary
Jonathan M. Rothberg, Ph.D., together with related entities, reports beneficial ownership of 828,775 shares of Butterfly Network, Inc. Class A common stock, representing 0.4% of that class based on 234,842,768 Class A shares outstanding as of April 20, 2026. He also reports beneficial ownership of 25,213,303 shares of Class B common stock, representing 100% of that class based on Class B shares outstanding as of July 17, 2026.
The disclosure lists share sales made for estate-planning purposes under a Rule 10b5-1 trading plan entered into on March 13, 2026. On July 14, 2026, 815,632 Class A shares were sold at a weighted average price of $7.7178 per share; on July 15, 1,730,319 Class A shares at $7.3228; and on July 16, 253,867 Class A shares at $7.0889. On July 16, 1,213,634 Class B shares were sold at a weighted average price of $7.0889 per share, and the Class B stock automatically converted into Class A stock on a one-to-one basis upon sale.
Positive
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Negative
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Key Figures
Class A shares beneficially owned: 828,775 shares
Class B shares beneficially owned: 25,213,303 shares
Class A shares outstanding: 234,842,768 shares
+5 more
8 metrics
Class A shares beneficially owned
828,775 shares
Beneficial ownership of Butterfly Network Class A common stock; 0.4% of the class
Class B shares beneficially owned
25,213,303 shares
Beneficial ownership of Butterfly Network Class B common stock; 100% of the class
Class A shares outstanding
234,842,768 shares
Class A common stock outstanding as of April 20, 2026, used to calculate 0.4% ownership
Class A sale July 14, 2026
815,632 shares at $7.7178
Weighted average price per share for Class A shares sold on July 14, 2026
Class A sale July 15, 2026
1,730,319 shares at $7.3228
Weighted average price per share for Class A shares sold on July 15, 2026
Class A sale July 16, 2026
253,867 shares at $7.0889
Weighted average price per share for Class A shares sold on July 16, 2026
Class B sale July 16, 2026
1,213,634 shares at $7.0889
Class B shares sold at a weighted average price; converted to Class A upon sale
4C Holdings V, LLC Class B stake
8,845,238 shares (35.1%)
Beneficial ownership of Class B common stock by 4C Holdings V, LLC
Key Terms
beneficially owned, Class B common stock, Rule 10b5-1 trading plan, estate planning
4 terms
beneficially owned financial
"Aggregate amount beneficially owned by each reporting person 828,775.00"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
Class B common stock financial
"This Reporting Person's table is for Class B common stock."
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
Rule 10b5-1 trading plan regulatory
"pursuant to a Rule 10b5-1 trading plan entered into on March 13, 2026."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
estate planning financial
"All transactions below were effected ... in connection with estate planning"
A set of instructions and legal steps that decide who gets your money, property and other assets, and who will manage them if you become unable to do so. For investors it matters because thoughtful planning can reduce taxes and delays, protect heirs, and keep investments from being tied up in court—think of it as a clear map and emergency kit that preserves value and directs where assets go when you can’t.
AI-generated analysis. How Rhea-AI works. Not financial advice.
FAQ
What ownership in Butterfly Network (BFLY) does Jonathan M. Rothberg report?
He reports beneficial ownership of 828,775 Class A shares, or 0.4% of that class, and 25,213,303 Class B shares, or 100% of that class, based on stated shares outstanding as of April 20 and July 17, 2026, respectively.
How is Jonathan M. Rothberg’s Class B ownership in BFLY structured?
The 25,213,303 Class B shares are held through entities including 4C Holdings I–V, LLC and shares distributed from 4C Holdings I, LLC to entities owned by trusts created for the benefit of Dr. Rothberg’s children, representing 100% of the Class B class.
What role do 4C Holdings entities play in Butterfly Network (BFLY) ownership?
Entities 4C Holdings I–V, LLC each report Class B holdings, such as 4,716,596 shares (18.7%) for 4C Holdings I, LLC and 8,845,238 shares (35.1%) for 4C Holdings V, LLC, contributing to the overall 25,213,303 Class B shares beneficially owned.