Butterfly Network's Devivo proposes $28.1K share sale

The proposed shares were acquired through restricted stock vesting, and two earlier Class A sales are listed for July and August 2026.

Available on EDGAR 09/22/2026 - 05:01 PM EDT Accepted by SEC EDGAR 09/22/2026 - 05:00 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Butterfly Network, Inc. officer and director Joseph Devivo reported a proposed sale of 2,811 Class A shares, with an aggregate market value of $28,110.00 and an approximate sale date of September 22, 2026. The form lists December 12, 2025, as the adoption date for a Rule 10b5-1 plan. The shares were acquired through restricted stock vesting from the issuer on December 17, 2024, as compensation. Devivo also reported prior Class A sales of 211,798 shares on July 20, 2026, for gross proceeds of $1,389,352.52, and 68,346 shares on August 10, 2026, for gross proceeds of $684,082.36.

Key Figures

Proposed sale: 2,811 shares Aggregate market value: $28,110.00 Prior sale: 211,798 shares +3 more

6 metrics

Proposed sale 2,811 shares Class A; approximate sale date September 22, 2026

Aggregate market value $28,110.00 Proposed Class A share sale

Prior sale 211,798 shares Class A sale on July 20, 2026

Gross proceeds $1,389,352.52 Class A sale on July 20, 2026

Prior sale 68,346 shares Class A sale on August 10, 2026

Gross proceeds $684,082.36 Class A sale on August 10, 2026

Key Terms

Rule 10b5-1, Restricted Stock Vesting, Aggregate Market Value, Gross Proceeds

4 terms

Rule 10b5-1 regulatory

"If Relying on Rule 10b5-1"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

Restricted Stock Vesting financial

"Nature of Acquisition Transaction: Restricted Stock Vesting"

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.

Aggregate Market Value financial

"Number of Shares or Other Units To Be Sold | Aggregate Market Value"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Gross Proceeds financial

"Amount of Securities Sold | Gross Proceeds"

The total amount of cash a company receives from a financing event or sale before any fees, expenses, taxes or deductions are taken out. Investors watch gross proceeds because it shows the raw scale of new capital being raised—think of it as the paycheck amount before withholdings—which helps assess how much funding is available for operations, growth, debt payoff or how much shareholder dilution might occur once costs are removed.

FAQ

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

How many BFLY shares is Joseph Devivo proposing to sell?

Joseph Devivo reported a proposed sale of 2,811 Class A shares, with an aggregate market value of $28,110.00 and an approximate sale date of September 22, 2026.

What were Joseph Devivo's recent BFLY share sales?

The reported sales were 211,798 Class A shares on July 20, 2026, for gross proceeds of $1,389,352.52, and 68,346 Class A shares on August 10, 2026, for gross proceeds of $684,082.36.

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	0001258790
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	DEVIVO JOSEPH
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	Officer
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
Class A	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	2811	28110.00	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	12/17/2024	Restricted Stock Vesting	Issuer			2811	12/17/2024	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Joseph Devivo 1600 District Avenue Burlington MA 01803	Class A	07/20/2026	211798	1389352.52
Joseph Devivo 1600 District Avenue Burlington MA 01803	Class A	08/10/2026	68346	684082.36

144: Remarks and Signature

Remarks
Date of Notice	09/22/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/12/2025
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	/s/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Joseph Devivo
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)