Butterfly Network (NYSE: BFLY) insider Rothberg details major share sales

Rhea-AI Filing Summary

Butterfly Network insider Dr. Jonathan Rothberg filed a notice to sell 176,070 shares of common stock. The shares are to be sold through Jefferies on the NYSE, with an approximate sale date of December 9, 2025, and an indicated aggregate market value of 546,767.00. The notice lists 226,200,000 common shares outstanding for the issuer.

The shares being sold were originally acquired on August 31, 2014, in a private purchase from Butterfly Network, Inc., paid in cash. The filing also discloses that over the past three months Dr. Rothberg has already sold multiple blocks of common stock, including 1,110,579 shares on November 24, 2025 for gross proceeds of 3,503,032.70 and 769,327 shares on December 8, 2025 for 2,517,776.00, along with several smaller transactions. The signer represents that he is not aware of any undisclosed material adverse 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	176070	546767.00	226200000	12/09/2025	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.			176070	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

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?

The notice discloses that Dr. Jonathan Rothberg plans to sell 176,070 shares of Butterfly Network common stock. The planned sale is to be executed through Jefferies on the NYSE around December 9, 2025, with an indicated aggregate market value of 546,767.00.

How many Butterfly Network (BFLY) shares has Dr. Jonathan Rothberg sold recently?

The filing lists several sales of common stock over the past three months. Examples include 1,110,579 shares sold on November 24, 2025 for gross proceeds of 3,503,032.70 and 769,327 shares sold on December 8, 2025 for 2,517,776.00, along with multiple additional transactions on nearby dates.

When and how were the Butterfly Network shares being sold originally acquired?

The 176,070 shares covered by this notice were acquired on August 31, 2014 through a private purchase from Butterfly Network, Inc.. The table states that the acquisition was paid in cash at that time.

How many Butterfly Network (BFLY) common shares are reported as outstanding?

In the securities information section, the issuer is shown with 226,200,000 common shares outstanding. This figure is provided as a baseline for the trading activity described in the notice.

What representation does the seller make about Butterfly Network’s undisclosed information?

By signing the notice, the person for whose account the securities are to be sold represents that he does not know any material adverse information regarding Butterfly Network’s current or prospective operations that has not been publicly disclosed.

Which broker is handling the planned Butterfly Network share sale under this Form 144?

The planned sale of 176,070 Butterfly Network common shares is to be handled by Jefferies, listed with an address at 520 Madison Ave, New York, NY 10022, with the securities to be sold on the NYSE.