Butterfly Network (BFLY) insider files to sell 14,911 shares after prior sales

Rhea-AI Filing Summary

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.

Insights

Equity ownership and insider-transactions analyst

Form 144 shows ongoing insider share sales, signaling a significant liquidity move.

This notice indicates that Dr. Jonathan Rothberg plans to sell 14,911 shares of Butterfly Network Inc. common stock through Jefferies on the NYSE, with an approximate sale date of 12/26/2025. The shares were acquired via a cash private purchase from the company on 08/31/2014, so this transaction reflects a monetization of a long-held position rather than a recent grant.

The disclosure also details numerous sales of Butterfly Network common stock by Dr. Rothberg in the past three months, each identifying the trade date, share amount, and gross proceeds in USD. These repeated transactions suggest a systematic reduction in his holding, though the filing does not state his remaining ownership or any trading plan structure. The certification language confirms that, in connection with these sales, he represents that he does not know of any material adverse, nonpublic information about the company’s operations.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	14911	59790.00	226200000	12/26/2025	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.			14911	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
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	12/04/2025	64198	197473.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	12/05/2025	37598	115591.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	12/08/2025	769327	2517776.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	12/09/2025	176070	546767.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	12/10/2025	288918	905237.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	12/11/2025	123354	380127.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	12/12/2025	193293	596270.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	12/15/2025	601308	1902658.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	12/16/2025	284986	893830.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	12/23/2025	44781	179424.00
Dr. Jonathan Rothberg 530 Old Whitefield St Guilford CT 06437	Common	12/24/2025	2673	10692.00

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

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

The filing discloses that Dr. Jonathan Rothberg plans to sell 14,911 shares of Butterfly Network Inc. common stock through Jefferies on the NYSE, with an approximate sale date of 12/26/2025.

How did the Butterfly Network (BFLY) shares being sold under this Form 144 originally get acquired?

The 14,911 common shares were acquired on 08/31/2014 through a private purchase from Butterfly Network Inc., with the consideration paid in cash.

Who is selling Butterfly Network (BFLY) shares and what is their relationship to the company?

The seller is Dr. Jonathan Rothberg, identified as the person for whose account the securities are to be sold. The form describes him as having a relationship to Butterfly Network Inc., although it does not further characterize his role in the excerpt.

Which broker and exchange are involved in this Butterfly Network (BFLY) Form 144 sale?

The planned sale of 14,911 common shares is to be executed through Jefferies, located at 520 Madison Ave, New York, NY 10022, on the NYSE.

What recent Butterfly Network (BFLY) stock sales by Dr. Jonathan Rothberg are listed in this Form 144?

The filing lists multiple prior three-month sales of Butterfly Network common stock by Dr. Rothberg, each with trade dates in November and December 2025. Each entry specifies the number of shares sold and the gross proceeds for that transaction.

Does the Butterfly Network (BFLY) Form 144 include any representation about inside information?

Yes. By signing, the seller represents that he does not know any material adverse information about Butterfly Network’s current or prospective operations that has not been publicly disclosed.