Butterfly Network (NYSE: BFLY) insider files Form 144 after large share sales

Rhea-AI Filing Summary

Butterfly Network insider files to sell additional shares under Rule 144. A holder of Butterfly Network common stock plans to sell 193,293 shares through broker Jefferies on or about 12/12/2025, with an aggregate market value of $596,270.00. The notice states that 226,200,000 common shares were outstanding.

The 193,293 shares were originally acquired on 08/31/2014 via a private cash purchase from Butterfly Network Inc. The same seller has already completed multiple open‑market sales of common stock over the prior three months, including 1,110,579 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.

Insights

Equity markets and insider-transactions analyst

Form 144 shows continued insider selling in Butterfly Network but is an administrative disclosure.

The filing describes a planned Rule 144 sale of 193,293 shares of Butterfly Network common stock through Jefferies, with an indicated aggregate market value of $596,270.00. These shares were originally acquired in a private cash purchase from the company on 08/31/2014, indicating a long holding period before these dispositions.

The notice also lists multiple prior sales in the last three months by the same seller, with individual transactions such as 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 $2,517,776.00. Rule 144 requires this type of disclosure when affiliates sell significant volumes, but the filing itself does not state motives or future intentions and does not change Butterfly Network’s operations or capital structure directly.

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	193293	596270.00	226200000	12/12/2025	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.			193293	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

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 the Butterfly Network (BFLY) Form 144 filing disclose?

It discloses a planned Rule 144 sale of 193,293 Butterfly Network common shares through Jefferies, with an aggregate market value of $596,270.00, and provides background on how and when the shares were acquired.

How many Butterfly Network (BFLY) shares are planned to be sold and when?

The filing shows a plan to sell 193,293 common shares of Butterfly Network, with an approximate sale date of 12/12/2025 and an indicated market value of $596,270.00.

How were the Butterfly Network (BFLY) shares in this Form 144 originally acquired?

The 193,293 shares were acquired on 08/31/2014 in a private purchase from Butterfly Network Inc., paid for in cash according to the filing.

What prior Butterfly Network (BFLY) share sales by the same seller are listed?

The document lists several sales over the past three months, including 1,110,579 common shares sold on 11/24/2025 for gross proceeds of $3,503,032.70 and 769,327 shares sold on 12/08/2025 for $2,517,776.00.

How many Butterfly Network (BFLY) shares are reported as outstanding in the Form 144?

The Form 144 states that there were 226,200,000 Butterfly Network common shares outstanding.

Which exchange lists the Butterfly Network (BFLY) shares referenced in this Form 144?

The shares referenced are Butterfly Network common stock listed on the NYSE, with Jefferies shown as the broker for the planned sale.