Butterfly Network insider plans sale of 64,198 shares

Butterfly Network Inc. insider Dr. Jonathan Rothberg has filed a Form 144 indicating an intention to sell 64,198 shares of the company’s common stock through broker Jefferies on the NYSE, with an approximate sale date of 12/04/2025.

Accepted by SEC EDGAR 12/04/2025 - 04:55 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Butterfly Network Inc. insider Dr. Jonathan Rothberg has filed a Form 144 indicating an intention to sell 64,198 shares of the company’s common stock through broker Jefferies on the NYSE, with an approximate sale date of 12/04/2025. These shares were originally acquired on 08/31/2014 via a private purchase from Butterfly Network Inc. for cash. The filing also lists several recent sales of Butterfly Network common stock by Dr. Rothberg during November 2025, each with disclosed share amounts and gross proceeds.

FAQ

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

What does this Form 144 filing for Butterfly Network (BFLY) disclose?

The Form 144 discloses that Dr. Jonathan Rothberg intends to sell 64,198 shares of Butterfly Network Inc. common stock through Jefferies on the NYSE, with an approximate sale date of 12/04/2025.

How many Butterfly Network (BFLY) shares are covered by the planned sale?

The planned sale covers 64,198 shares of Butterfly Network Inc. common stock, as stated in the Form 144 under the securities information section.

When and how did the seller acquire the Butterfly Network (BFLY) shares?

The filing states that the 64,198 common shares were acquired on 08/31/2014 in a private purchase from the company, Butterfly Network Inc., paid in cash.

Which broker is handling the sale of Butterfly Network (BFLY) shares?

The broker named in the filing is Jefferies, located at 520 Madison Ave, New York, NY 10022, and the shares are to be sold on the NYSE.

What prior Butterfly Network (BFLY) stock sales by the seller are disclosed?

The notice lists multiple prior sales of Butterfly Network common stock by Dr. Jonathan Rothberg in November 2025, each showing the date of sale, number of shares sold, and the gross proceeds from those transactions.

How many Butterfly Network (BFLY) shares are outstanding according to this filing?

The Form 144 indicates that there are 226,200,000 shares of Butterfly Network common stock outstanding at the time referenced in the securities information table.

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

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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
Common	Jefferies 520 Madison Ave New York NY 10022	64198	197473.00	226200000	12/04/2025	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 *
Common	08/31/2014	Private Purchase from the Company	Butterfly Network Inc.			64198	08/31/2014	Cash

* 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	Common	11/03/2025	100502	309361.24
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	11/24/2025	1110579	3503032.70
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	11/25/2025	674758	2206728.56
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	11/26/2025	442539	1383598.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	11/28/2025	132570	408196.00

144: Remarks and Signature

Remarks
Date of Notice	12/04/2025
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/05/2025
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 M. Rothberg
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)