Butterfly Network ex-director plans 78,679-share sale

Butterfly Network, Inc. (BFLY) is the issuer for a proposed Rule 144 sale by former director Erica G. Schwartz, who has filed to sell 78,679 shares of Class A common stock through Fidelity Brokerage Services LLC on the NYSE.

Rhea-AI Filing Summary

Butterfly Network, Inc. (BFLY) is the issuer for a proposed Rule 144 sale by former director Erica G. Schwartz, who has filed to sell 78,679 shares of Class A common stock through Fidelity Brokerage Services LLC on the NYSE. The shares are valued at an aggregate of $786,790.00 and are part of an issuer with 244,858,246 shares of Class A common stock outstanding as of September 22, 2026. The securities to be sold were acquired through restricted stock vesting on September 8, 2022, June 15, 2023, September 8, 2023, and June 7, 2024 as compensation.

Key Figures

Shares to be sold: 78,679 shares Aggregate market value of shares to be sold: $786,790.00 Shares outstanding: 244,858,246 shares +4 more

7 metrics

Shares to be sold 78,679 shares Class A common stock proposed to be sold under Rule 144

Aggregate market value of shares to be sold $786,790.00 Value of 78,679 Class A shares covered by the notice

Shares outstanding 244,858,246 shares Class A common stock outstanding as of September 22, 2026

Vesting date 1 September 8, 2022 Restricted stock vesting that contributed to shares being sold

Vesting date 2 June 15, 2023 Restricted stock vesting that contributed to shares being sold

Vesting date 3 September 8, 2023 Restricted stock vesting that contributed to shares being sold

Vesting date 4 June 7, 2024 Restricted stock vesting that contributed to shares being sold

Key Terms

Rule 144, Restricted Stock Vesting, attorney-in-fact

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Class A | 09/08/2022 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

attorney-in-fact regulatory

"as attorney-in-fact for Erica G. Schwartz"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

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

How many Butterfly Network (BFLY) shares are being registered for sale on this Form 144?

The notice covers 78,679 shares of Butterfly Network, Inc. Class A common stock. These shares are proposed to be sold pursuant to Rule 144 and have an aggregate market value stated as $786,790.00 in the filing.

Who is selling Butterfly Network (BFLY) shares in this Form 144 filing?

The securities are to be sold for the account of Erica G. Schwartz, identified as a former director of Butterfly Network, Inc. Fidelity Brokerage Services LLC is listed as the broker handling the proposed sale.

What is the stated market value of the Butterfly Network (BFLY) shares to be sold?

The filing states an aggregate market value of $786,790.00 for the 78,679 Class A shares proposed to be sold. These shares are listed for trading on the NYSE.

How many Butterfly Network (BFLY) shares are outstanding according to this Form 144?

The Form 144 reports that there are 244,858,246 shares of Butterfly Network, Inc. Class A common stock outstanding as of September 22, 2026. This figure is provided as context for the proposed Rule 144 sale.

How did the seller acquire the Butterfly Network (BFLY) shares listed in this Form 144?

The shares were acquired through restricted stock vesting from the issuer as compensation, on four vesting dates: September 8, 2022, June 15, 2023, September 8, 2023, and June 7, 2024.

Which broker is handling the Rule 144 sale of Butterfly Network (BFLY) shares?

The broker listed is Fidelity Brokerage Services LLC, located in Smithfield, Rhode Island. The Form 144 is signed by Wade Moss as a duly authorized representative and attorney-in-fact for Erica G. Schwartz.

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

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Available on EDGAR 09/22/2026 - 04:52 PM Accepted by SEC EDGAR 09/22/2026 - 04:51 PM 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	0001872122
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	Schwartz Erica
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	Former 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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	78679	786790.00	244858246	09/22/2026	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	09/08/2022	Restricted Stock Vesting	Issuer			7968	09/08/2022	Compensation
Class A	06/15/2023	Restricted Stock Vesting	Issuer			48231	06/15/2023	Compensation
Class A	09/08/2023	Restricted Stock Vesting	Issuer			7968	09/08/2023	Compensation
Class A	06/07/2024	Restricted Stock Vesting	Issuer			14512	06/07/2024	Compensation

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/22/2026
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	/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Erica G. Schwartz
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)