Dr. Rothberg to sell 659,913 Butterfly Network shares

Dr. Jonathan Rothberg filed a notice to sell 659,913 shares of Butterfly Network Inc. Class A common stock.

Rhea-AI Filing Summary

Dr. Jonathan Rothberg filed a notice to sell 659,913 shares of Butterfly Network Inc. Class A common stock. The proposed sale, with an approximate aggregate market value of $4,270,000, is expected to be executed through Jefferies on or about July 22, 2026 on the NYSE. The filing also lists several Class A share sales during July 2026, including 815,632 shares for $6,295,000 on July 14, 2026 and 1,730,319 shares for $12,670,000 on July 15, 2026.

Key Figures

Shares proposed for sale: 659,913 shares Aggregate market value of proposed sale: $4,270,000.00 Proposed sale date: 07/22/2026 +3 more

6 metrics

Shares proposed for sale 659,913 shares Class A common stock proposed to be sold through Jefferies

Aggregate market value of proposed sale $4,270,000.00 Approximate value of 659,913 Class A shares

Proposed sale date 07/22/2026 Date associated with the proposed NYSE sale

Prior sale on 07/14/2026 815,632 shares; $6,295,000.00 Class A shares sold during the past 3 months

Prior sale on 07/15/2026 1,730,319 shares; $12,670,000.00 Class A shares sold during the past 3 months

Prior sale on 07/16/2026 1,467,501 shares; $10,400,000.00 Class A shares sold during the past 3 months

Key Terms

Form 144, Class A Common, Private Placement, aggregate market value

4 terms

Form 144 regulatory

"144: Securities Information 144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Class A Common financial

"Class A Common | Jefferies 520 Madison Ave New York NY 10022"

Private Placement financial

"Class A | 05/31/2012 | Private Placement | Butterfly Network Inc."

A private placement is a sale of securities directly to a selected group of investors, typically institutions or accredited investors, instead of through a public offering. It lets a company raise money faster and with fewer regulatory steps; for existing shareholders it matters because the newly issued shares, often sold at a discount, increase the share count and can dilute their ownership.

aggregate market value financial

"659913 | 4270000.00 | 235200000 | 07/22/2026 | NYSE"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing for BFLY disclose about upcoming share sales?

The filing shows Dr. Jonathan Rothberg plans to sell 659,913 Class A shares of Butterfly Network Inc., with an approximate aggregate market value of $4,270,000, through Jefferies on or about July 22, 2026 on the NYSE.

Who is the selling security holder in Butterfly Network (BFLY)’s Form 144?

The selling security holder is Dr. Jonathan Rothberg. He filed to sell 659,913 shares of Butterfly Network Inc. Class A common stock, using Jefferies as broker, with an indicated aggregate market value of $4,270,000.

How many Butterfly Network (BFLY) shares are proposed to be sold under this Form 144?

The notice covers a proposed sale of 659,913 Class A shares of Butterfly Network Inc. The filing also ties these shares to an approximate aggregate market value of $4,270,000, to be sold through Jefferies on the NYSE.

What prior sales are reported in the Form 144 for Butterfly Network (BFLY)?

The filing lists several prior Class A share sales by Dr. Jonathan Rothberg in July 2026, including 815,632 shares for $6,295,000 on July 14, 2026 and 1,730,319 shares for $12,670,000 on July 15, 2026.

Which broker and exchange are involved in the planned Butterfly Network (BFLY) share sale?

The planned sale of 659,913 Class A shares is to be executed through Jefferies, with trading on the NYSE. The filing ties this proposed transaction to an approximate aggregate market value of $4,270,000.

On what date is the proposed Butterfly Network (BFLY) share sale expected?

The proposed sale of 659,913 Butterfly Network Inc. Class A shares is associated with the date July 22, 2026. The filing indicates Jefferies as the broker and an approximate aggregate market value of $4,270,000 for the shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/22/2026 - 06:08 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001076352
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Butterfly Network, Inc.
SEC File Number	001-39292
Address of Issuer	1600 DISTRICT AVENUE BURLINGTON MASSACHUSETTS 01803
Phone	781-557-4800
Name of Person for Whose Account the Securities are To Be Sold	ROTHBERG JONATHAN M
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A Common	Jefferies 520 Madison Ave New York NY 10022	659913	4270000.00	235200000	07/22/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A	05/31/2012	Private Placement	Butterfly Network Inc.			659913	05/31/2012	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Class A	07/14/2026	815632	6295000.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Class A	07/15/2026	1730319	12670000.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Class A	07/16/2026	1467501	10400000.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Class A	07/17/2026	1195857	7880000.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Class A	07/20/2026	1177276	7790000.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Class A	07/21/2026	753320	5070000.00

144: Remarks and Signature

Remarks
Date of Notice	07/22/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/13/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Jonathan Rothberg
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)