Form 144: BFLY affiliate notifies sale of 1,733 Class A shares

Filer submitted a Form 144 notice reporting proposed sales of Class A shares related to BFLY.

Rhea-AI Filing Summary

Filer submitted a Form 144 notice reporting proposed sales of Class A shares related to BFLY. The filing lists 1,733 shares associated with a 06/01/2026 restricted stock vesting event and identifies Fidelity Brokerage Services LLC as broker on 06/02/2026 (NYSE). The filing also records a prior sale of 14,209 Class A shares on 03/03/2026 with proceeds shown as 52,746.65.

Insights

Securities Compliance Analyst

Form 144 lists a proposed resale of vested restricted Class A shares and a recent prior sale.

The notice shows 1,733 Class A shares tied to a 06/01/2026 restricted stock vesting and identifies Fidelity Brokerage Services LLC as broker on 06/02/2026. This is a disclosure of intent to sell under Section 15(g) procedures.

The excerpt also records a prior disposition of 14,209 shares on 03/03/2026 with 52,746.65 shown. Cash‑flow treatment and any holding‑period or affiliate status details are not included in the excerpt.

Key Figures

Shares associated with vesting: 1,733 shares Prior sale quantity: 14,209 shares Proceeds/amount shown: 52,746.65 +2 more

5 metrics

Shares associated with vesting 1,733 shares Restricted stock vesting on 06/01/2026

Prior sale quantity 14,209 shares Sale by Nicholas Caezza on 03/03/2026

Proceeds/amount shown 52,746.65 Amount listed with the 03/03/2026 sale row

Broker Fidelity Brokerage Services LLC Listed with broker address and NYSE on 06/02/2026

Exchange NYSE Exchange noted on broker line dated 06/02/2026

Key Terms

Form 144, Restricted Stock Vesting, Compensation

3 terms

Form 144 regulatory

"Filer submitted a Form 144 notice reporting proposed sales of Class A shares"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Class A | 06/01/2026 | 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.

Compensation financial

"1733 | 06/01/2026 | Compensation"

FAQ

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

What does the BFLY Form 144 report list?

It reports proposed sales of Class A shares. The filing lists 1,733 shares tied to a 06/01/2026 restricted stock vesting and shows a broker entry for 06/02/2026 with NYSE noted.

Who is the broker listed on the Form 144 for BFLY?

Fidelity Brokerage Services LLC is named as broker with address at 900 Salem Street, Smithfield, RI. The broker entry is associated with the 06/02/2026 line in the excerpt.

Does the filing show any recent past sales for BFLY insiders?

Yes. The excerpt records a sale by Nicholas Caezza of 14,209 Class A shares on 03/03/2026 with an amount shown as 52,746.65 in the table.

Are the shares in the Form 144 from compensation or open‑market holdings?

The excerpt links the 1,733 Class A shares to a restricted stock vesting event. The line labels the transaction as Restricted Stock Vesting and lists Compensation as the purpose.

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

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Accepted by SEC EDGAR 06/02/2026 - 03:17 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	0002080056
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	Caezza Nicholas
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

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	1733	7831.25	234842768	06/02/2026	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	06/01/2026	Restricted Stock Vesting	Issuer			1733	06/01/2026	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
Nicholas Caezza 1600 District Avenue Burlington MA 01803	Class A	03/03/2026	14209	52746.65

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	06/02/2026
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/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Nicholas Caezza
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)