Jonathan Rothberg plans sale of 1,730,319 BFLY shares

Filer Dr. Jonathan Rothberg plans to sell 1,730,319 shares of Class A common stock of BFLY through Jefferies LLC, with an aggregate market value of 12,670,000.00, on or about July 15, 2026.

Rhea-AI Filing Summary

Filer Dr. Jonathan Rothberg plans to sell 1,730,319 shares of Class A common stock of BFLY through Jefferies LLC, with an aggregate market value of 12,670,000.00, on or about July 15, 2026. Class A shares outstanding total 235,200,000. The shares were acquired via a private investment on August 31, 2014 and RSU grants on December 31, 2022 and June 18, 2026. Over the past three months, Rothberg has sold 815,632 Class A shares for 6,290,000.00 on July 14, 2026.

Key Figures

Shares to be sold: 1,730,319 shares Aggregate market value of planned sale: 12,670,000.00 Class A shares outstanding: 235,200,000 shares +5 more

8 metrics

Shares to be sold 1,730,319 shares Class A common stock in proposed Form 144 sale

Aggregate market value of planned sale 12,670,000.00 Market value of 1,730,319 Class A shares to be sold

Class A shares outstanding 235,200,000 shares Total Class A common shares outstanding for BFLY

Shares sold in past 3 months 815,632 shares Class A shares sold on 07/14/2026 by Jonathan Rothberg

Value of recent sale 6,290,000.00 Aggregate amount for 815,632 Class A shares sold on 07/14/2026

Shares from 2014 private investment 660,815 shares Class A shares acquired on 08/31/2014 via Private Investment

Shares from 12/31/2022 RSU 989,070 shares Class A shares acquired on 12/31/2022 via RSU

Shares from 06/18/2026 RSU 80,434 shares Class A shares acquired on 06/18/2026 via RSU

Key Terms

Securities To Be Sold, Securities Sold During The Past 3 Months, RSU, Private Investment

4 terms

Securities To Be Sold regulatory

""144: Securities To Be Sold" table listing Class A entries"

Securities Sold During The Past 3 Months regulatory

""144: Securities Sold During The Past 3 Months" section header"

RSU financial

"Class A | 12/31/2022 | RSU | N/A | | | 989070 | 12/31/2022 | N/A"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

Private Investment financial

"Class A | 08/31/2014 | Private Investment | N/A | | | 660815"

FAQ

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

What does the Form 144 filing for BFLY disclose?

It discloses a planned sale of 1,730,319 BFLY Class A common shares through Jefferies LLC, with an aggregate market value of 12,670,000.00, and notes total Class A shares outstanding of 235,200,000.

Who is the selling shareholder in BFLY’s Form 144?

The filing lists Dr. Jonathan Rothberg as the filer and selling shareholder. He intends to sell BFLY Class A shares through Jefferies LLC, acting as the broker for the proposed Rule 144 transaction.

How many BFLY shares has Jonathan Rothberg sold recently?

Over the past three months, Jonathan Rothberg has sold 815,632 BFLY Class A shares on July 14, 2026 for an aggregate amount of 6,290,000.00, as reported in the "Securities Sold During The Past 3 Months" section.

What are the sources and acquisition dates of the BFLY shares to be sold?

The shares come from a Private Investment on August 31, 2014 for 660,815 shares and RSU acquisitions on December 31, 2022 for 989,070 shares and June 18, 2026 for 80,434 shares.

How many BFLY Class A shares are outstanding?

The Form 144 data indicate there are 235,200,000 BFLY Class A shares outstanding. This figure provides context for the relative size of the planned 1,730,319-share sale by the filing shareholder.

On which exchange are BFLY Class A shares listed in this filing?

The securities information section identifies the Class A common stock as listed on the NYSE. The planned sale of 1,730,319 shares at an aggregate value of 12,670,000.00 references trading on this exchange.

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

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Accepted by SEC EDGAR 07/15/2026 - 05:39 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 LLC 520 Madison Ave New York NY 10022	1730319	12670000.00	235200000	07/15/2026	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	08/31/2014	Private Investment	N/A			660815	08/31/2014	N/A
Class A	12/31/2022	RSU	N/A			989070	12/31/2022	N/A
Class A	06/18/2026	RSU	N/A			80434	06/18/2026	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	6290000.00

144: Remarks and Signature

Remarks
Date of Notice	07/15/2026
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)