Welcome to our dedicated page for Butterfly Network SEC filings (Ticker: BFLY), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Butterfly Network, Inc. (NYSE: BFLY) SEC filings page on Stock Titan provides access to the company’s official regulatory disclosures, including current reports on Form 8-K and other documents filed with the U.S. Securities and Exchange Commission. These filings give investors and analysts detailed insight into Butterfly’s financial reporting, corporate actions and material events related to its handheld ultrasound devices, Ultrasound-on-Chip™ semiconductor technology and digital health software platforms.
Recent Form 8-K filings for BFLY cover several key topics. Some 8-Ks furnish press releases announcing quarterly financial results and preliminary revenue expectations, along with business updates on AI initiatives, chip development milestones and enterprise software such as Compass™ and Compass AI™. Other 8-Ks describe executive leadership changes, including the appointment of a new Chief Financial Officer and related compensation and severance arrangements for finance executives.
Butterfly’s filings also document material agreements. For example, an 8-K dated November 17, 2025 describes a Co-Development and Licensing Agreement with Midjourney, Inc., under which Butterfly grants an exclusive, non-transferable license within a specified field of use to certain Ultrasound-on-Chip technology, software and backend technology, in exchange for specified fees, milestone payments, revenue sharing and chip-related payments. This type of filing helps readers understand how Butterfly’s semiconductor platform is being licensed to partners.
Another notable 8-K, dated January 13, 2026, reports that the New York Stock Exchange has determined to commence proceedings to delist Butterfly’s public warrants (ticker BFLY WS) and suspend trading in those warrants due to "abnormally low selling price" levels under NYSE rules. The filing states that this action does not affect trading in Butterfly’s Class A common stock, which continues on the NYSE under the symbol BFLY.
On Stock Titan, these SEC documents are supplemented with AI-powered summaries that highlight the main points of each filing, helping readers quickly understand topics such as results of operations, material contracts, leadership changes and listing status. Users can review Forms 8-K for event-driven updates, and refer to annual and quarterly reports (Forms 10-K and 10-Q) for broader financial and operational details as they become available through the SEC’s EDGAR system.
Butterfly Network Chief Technology Officer Victor Ku reported an automatic sale of company stock related to tax withholding. On January 5, 2026, he sold 35,968 shares of Butterfly Network Class A common stock at a weighted average price of $3.82 per share in a transaction coded as a sale.
According to the disclosure, Butterfly Network has a "sell-to-cover" policy for equity awards, and these shares were sold automatically to cover tax withholding triggered by the vesting of restricted stock units, rather than at Ku’s discretion. After this transaction, Ku beneficially owned 811,962 shares of Class A common stock directly.
Butterfly Network investor filed a notice to sell Class A shares under Rule 144. The filing covers the planned sale of 60,182 Class A shares through Fidelity Brokerage Services LLC on the NYSE, with an aggregate market value of $239,494.27. The shares are part of a larger base of 226,175,175 Class A shares outstanding. The securities were acquired on 01/06/2026 through restricted stock vesting from the issuer as compensation, and the approximate sale date listed is 01/07/2026. By signing, the selling holder represents they are not aware of 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 additional common shares under Rule 144. The filing covers 351,617 common shares to be sold through Jefferies LLC on the NYSE, with an aggregate market value of $1,416,805.00, while 226,200,000 common shares are outstanding. The shares were originally acquired on 08/31/2014 in a private purchase from the company, paid in cash.
The notice also lists a series of recent open-market sales by Dr. Rothberg over the past three months, including multiple transactions in November and December 2025, such as 1,110,579 common shares sold on 11/24/2025 for gross proceeds of $3,503,032.70. By signing the notice, the seller represents that he does not know of any material adverse, non-public information about Butterfly Network’s operations.
A holder of BFLY Class A shares has filed a notice of intent to sell 35,968 shares through Fidelity Brokerage Services on the NYSE. The filing lists an aggregate market value of $137,415.74 for these shares and notes that there were 226,175,175 Class A shares outstanding at the time of the notice. The shares to be sold were acquired on January 2, 2026 through restricted stock vesting from the issuer as compensation, and the planned sale date is approximately January 5, 2026. The seller represents that they are not aware of any material adverse information about the issuer that has not been publicly disclosed.
Butterfly Network, Inc. director and 10% owner Jonathan M. Rothberg, Ph.D. reported multiple open‑market sales of Class A common stock made under a pre‑arranged Rule 10b5‑1 trading plan adopted on March 5, 2025 for estate planning purposes.
Through JAR TR, LLC, he sold 44,781 shares at a weighted average price of $4.0067 on 12/23/2025, 2,673 shares at $4.00 on 12/24/2025, and 14,911 shares at a weighted average price of $4.0098 on 12/26/2025. After these transactions, 1,157,764, 1,155,091 and then 1,140,180 Class A shares remained indirectly owned through JAR TR, LLC.
In addition, substantial indirect holdings of Class A and Class B common stock are reported through various entities, including 4C Holdings I–V, NVR TR, JNR TR, GBR TR, EJR TR, and the reporting person’s spouse, while Dr. Rothberg disclaims beneficial ownership of these securities except to the extent of his pecuniary interest.
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.