Butterfly Network Inc SEC Filings

Butterfly Network Inc. insider Dr. Jonathan Rothberg filed a notice to sell 14,911 shares of common stock through Jefferies on the NYSE, with an approximate sale date of 12/26/2025. These shares were originally acquired on 08/31/2014 in a private purchase from Butterfly Network Inc. for cash. The filing also lists multiple recent sales of Butterfly Network common stock by Dr. Rothberg over the prior three months, with individual transactions ranging from tens of thousands to more than one million shares and generating six- to seven-figure gross proceeds. By signing the notice, the seller represents that he is not aware of any undisclosed material adverse information about Butterfly Network’s current or prospective operations.

Butterfly Network Inc. insider Dr. Jonathan Rothberg has filed a notice to sell 2,673 shares of the company’s common stock. The shares were privately purchased from Butterfly Network Inc. on 08/31/2014 for cash and are planned to be sold through Jefferies LLC on or around 12/24/2025 on the NYSE. The notice lists 226,200,000 common shares outstanding for the issuer. It also details multiple prior sales of Butterfly Network common stock by Dr. Rothberg over the past three months, including 1,110,579 shares sold on 11/24/2025 for gross proceeds of $3,503,032.70 and 769,327 shares sold on 12/08/2025 for gross proceeds of $2,517,776.00.

Butterfly Network Inc. insider Dr. Jonathan Rothberg filed a notice of proposed sale under Rule 144 covering 44,781 shares of common stock. The shares are slated to be sold through Jefferies on or about 12/23/2025 on the NYSE, with an aggregate market value of $179,424.00, compared with 226,200,000 shares outstanding of the same class. The shares were originally acquired on 08/31/2014 via a private cash purchase from Butterfly Network Inc.

Over the prior three months, Dr. Rothberg has sold multiple blocks of Butterfly Network common stock, including 1,105,079 shares on 11/24/2025 for gross proceeds of $3,503,032.70 and 769,327 shares on 12/08/2025 for $2,517,776.00, along with a series of other smaller transactions.

Butterfly Network director and 10% owner Jonathan M. Rothberg, Ph.D. reported sales of Class A common stock executed under a Rule 10b5‑1 trading plan. The plan was adopted on March 5, 2025 for estate planning purposes. Reported transactions included a sale of 601,308 Class A shares on December 15, 2025 at a weighted average price of $3.1642 per share, followed on December 16, 2025 by sales of 50,360, 196,662 and 37,964 Class A shares at a weighted average price of $3.1364 per share. The prices reflected ranges from $3.07 to $3.2373 and from $3.07 to $3.265 per share. After these trades, the report shows continued holdings of Butterfly Network stock directly and indirectly through family trusts and holding entities, including 1,202,545 Class A shares through JAR TR, LLC, 2,880,252 Class A shares held directly, 726,696 Class A shares held by his spouse, and multiple blocks of Class B common stock held via several 4C Holdings and trust entities.

Butterfly Network, Inc. major shareholder Jonathan M. Rothberg filed Amendment No. 8 to update his beneficial ownership of the company’s Class A and Class B common stock.

He now beneficially owns 4,750,704 shares of Class A common stock, or 2.1% of that class, including personal holdings, stock options exercisable within 60 days of December 16, 2025, shares held by entities owned by trusts for his children, and shares held by his spouse. He also beneficially owns 26,426,937 shares of Class B common stock, representing 100% of that class, primarily through 4C Holdings I–V, LLC and related entities, based on shares outstanding as of October 21, 2025.

The amendment also reports multiple sales of Class A shares made in connection with estate planning and pursuant to a Rule 10b5-1 trading plan entered into on March 5, 2025, including 769,327 shares sold on December 8, 2025 at a weighted average price of $3.2727 per share and 601,308 shares sold on December 15, 2025 at a weighted average price of $3.1642 per share.

Butterfly Network, Inc. reported that one of its directors bought 185,261 shares of Class A common stock on December 15, 2025 in an open-market purchase. The shares were acquired at a weighted average price of $3.083 per share through The Phanstiel Trust u/a/d 2/5/02, which now holds 185,261 shares indirectly for the reporting person. Separately, the director also holds 365,505 shares of Class A common stock directly.

Butterfly Network Inc. stockholder Dr. Jonathan Rothberg has filed a notice to sell up to 284,986 shares of the company’s common stock through broker Jefferies LLC on the NYSE, with an approximate sale date of 12/16/2025.

The shares to be sold were originally acquired on 08/31/2014 in a private cash purchase from Butterfly Network Inc. The notice states that 226200000 shares of common stock were outstanding.

The document also lists multiple sales by Rothberg over the past three months, including 1110579 shares sold on 11/24/2025 for gross proceeds of 3503032.70 and 769327 shares sold on 12/08/2025 for 2517776.00.

Butterfly Network director and 10% owner Larry Robbins reported buying 21,370 shares of Class A common stock on December 11, 2025 at a weighted average price of $3.0169. The filing notes these were open-market purchases, with individual trade prices ranging from $3.015 to $3.02.

After this transaction, Robbins beneficially owned 14,335,055 shares indirectly through the Glenview Investment Funds and 4,546,687 shares indirectly through Longview Investors LLC or its affiliates, plus 365,505 shares held directly. The direct holdings include 80,434 unvested restricted stock units, each representing one share, which vest in full at Butterfly Network’s 2026 annual stockholders meeting, subject to Robbins’ continued service on the board. Footnotes explain that Glenview and Longview are the record holders, that Robbins may be deemed to share voting and dispositive power, and that he disclaims beneficial ownership beyond any pecuniary interest.

Butterfly Network, Inc. (BFLY) has a notice of proposed sale of common stock by Dr. Jonathan Rothberg. The filing covers 601308 shares of common stock to be sold through Jefferies at 520 Madison Ave, New York, with an aggregate market value of 1902658.00. The table also shows 226200000 shares outstanding and an approximate sale date of 12/15/2025 on the NYSE.

The securities to be sold were acquired on 08/31/2014 in a private purchase from Butterfly Network Inc. for cash. The filing also lists multiple recent sales of Butterfly Network common stock by Dr. Rothberg over the past three months, including 100502 shares on 11/03/2025 for gross proceeds of 309361.24 and 1110579 shares on 11/24/2025 for gross proceeds of 3503032.70, along with additional transactions in November and December 2025.