Butterfly Network director granted 73,170 RSUs

Neubauer Caroll H reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Neubauer Caroll H reported acquisition or exercise transactions in this Form 4 filing.

Butterfly Network, Inc. director Caroll H. Neubauer received an equity award of 73,170 shares of Class A Common Stock in the form of restricted stock units (RSUs). The award was granted at no cash cost per share and represents his entire reported direct holding after this transaction.

The RSUs vest in equal annual installments over three years beginning on May 19, 2027, contingent on Mr. Neubauer’s continued service on the Board of Directors at each vesting date. This structure aligns his compensation with the company’s long-term performance and his ongoing board service.

Insider Trade Summary

Grant/Award: 73,170 shares

Grant/Award 1 txn

Insider Neubauer Caroll H

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	73,170	$0.00	$0.00

Holdings After Transaction: Class A Common Stock — 73,170 shares (Direct)

Footnotes (1)

1. F1. Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of Class A common stock upon vesting. The RSUs vest in equal annual installments over three years beginning on May 19, 2027, subject to Mr. Neubauer's continued service on the Board of Directors on the applicable vesting date.

Key Figures

RSUs granted: 73,170 shares Grant price per share: $0.0000 per share Shares after transaction: 73,170 shares +1 more

4 metrics

RSUs granted 73,170 shares Equity award to director Caroll H. Neubauer

Grant price per share $0.0000 per share Reported transaction price for RSU grant

Shares after transaction 73,170 shares Total direct holdings following RSU award

Vesting start date May 19, 2027 First vesting date for RSUs, with three equal annual installments

Key Terms

restricted stock units ("RSUs"), Class A Common Stock, vesting, Board of Directors

4 terms

restricted stock units ("RSUs") financial

"Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share..."

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

Class A Common Stock financial

"Each RSU represents the right to receive one share of Class A common stock upon vesting."

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

vesting financial

"The RSUs vest in equal annual installments over three years beginning on May 19, 2027..."

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

Board of Directors financial

"subject to Mr. Neubauer's continued service on the Board of Directors on the applicable vesting date."

The Board of Directors is a group of people chosen by a company's owners to help make big decisions and oversee how the company is run. They act like a team of advisors or managers, making sure the company stays on track and meets its goals. Their choices can influence the company's success and how it grows.

FAQ

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

What insider transaction did Butterfly Network (BFLY) report for Caroll H. Neubauer?

Butterfly Network reported that director Caroll H. Neubauer received 73,170 restricted stock units of Class A Common Stock as an equity award. These RSUs were granted at no cash cost per share and constitute his reported direct holdings following the transaction.

How many Butterfly Network (BFLY) shares did Caroll H. Neubauer acquire in this Form 4?

Caroll H. Neubauer acquired 73,170 shares in the form of RSUs. Each restricted stock unit represents the right to receive one share of Class A Common Stock upon vesting, subject to meeting the vesting conditions tied to continued board service.

What are the vesting terms of Caroll H. Neubauer’s RSUs from Butterfly Network (BFLY)?

The RSUs granted to Caroll H. Neubauer vest in equal annual installments over three years beginning on May 19, 2027. Vesting is conditioned on his continued service on Butterfly Network’s Board of Directors on each applicable vesting date, aligning his incentives with long-term governance.

Did Caroll H. Neubauer pay cash for the Butterfly Network (BFLY) shares granted in this Form 4?

No cash payment was reported for these shares; the Form 4 lists a price of $0.0000 per share. The 73,170 shares were granted as restricted stock units, which function as stock-based compensation rather than an open-market purchase of Butterfly Network stock.

How many Butterfly Network (BFLY) shares does Caroll H. Neubauer hold after this RSU grant?

After the reported grant, Caroll H. Neubauer holds 73,170 shares of Class A Common Stock on a direct basis, represented by the RSUs. These shares will be delivered upon vesting, assuming he continues to serve on the Board through the scheduled vesting dates.

Is Caroll H. Neubauer’s Butterfly Network (BFLY) equity award a purchase or compensation grant?

The transaction is a compensation grant, not a market purchase. The Form 4 uses transaction code “A” for a grant or award acquisition, showing 73,170 RSUs granted at a reported price of $0.0000 per share as part of his director compensation package.

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

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Accepted by SEC EDGAR 05/21/2026 - 04:10 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Neubauer Caroll H

(Last) (First) (Middle)

C/O BUTTERFLY NETWORK, INC.

1600 DISTRICT AVENUE

(Street)

BURLINGTON MASSACHUSETTS 01803

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Butterfly Network, Inc. [ BFLY ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/19/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	05/19/2026		A		73,170(1)	A	$0.00	73,170	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of Class A common stock upon vesting. The RSUs vest in equal annual installments over three years beginning on May 19, 2027, subject to Mr. Neubauer's continued service on the Board of Directors on the applicable vesting date.

	/s/ Nick Caezza, Attorney-in-Fact	05/21/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)