Butterfly Network officer sells 1,709 shares

Butterfly Network’s deputy general counsel reported an automatic tax-related sale of 1,709 BFLY shares tied to RSU vesting, retaining over 300,000 shares afterward.

Rhea-AI Filing Summary

Butterfly Network, Inc. (BFLY) reported that officer Nicholas Caezza, Deputy General Counsel, sold 1,709 shares of Class A Common Stock on September 2, 2026 at a weighted average price of $8.149 per share, with individual sale prices ranging from $8.10 to $8.28.

The company states these automatic sales were made under its “sell-to-cover” policy solely to satisfy tax withholding obligations arising from the vesting of restricted stock units, and were not at Caezza’s discretion. After the sale, he held 305,166 shares, including 6,568 shares acquired through the employee stock purchase plan on June 30, 2026.

Insider Trade Summary

Net Seller: 1,709 shares

Net Sell 1 txn

Insider Caezza Nicholas

Role Deputy General Counsel

Sold 1,709 shs ($14K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2, F3	1,709	$8.149	$14K

Holdings After Transaction: Class A Common Stock — 305,166 shares (Direct)

Footnotes (3)

1. F1. The Issuer has adopted a "sell-to-cover" policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.
2. F2. Represents the weighted average sales price per share. The shares sold at prices ranging from $8.10 to $8.28 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.
3. F3. Includes 6,568 shares acquired under the Issuer's employee stock purchase plan on June 30, 2026.

Key Figures

Shares sold: 1,709 shares Weighted average sale price: $8.149 per share Sale price range: $8.10–$8.28 per share +2 more

5 metrics

Shares sold 1,709 shares Class A Common Stock sold on September 2, 2026

Weighted average sale price $8.149 per share Sale of 1,709 shares on September 2, 2026

Sale price range $8.10–$8.28 per share Individual trade prices for the 1,709 shares sold

Shares held after transaction 305,166 shares Direct holdings after September 2, 2026 sale

ESPP shares included in holdings 6,568 shares Acquired under employee stock purchase plan on June 30, 2026

Key Terms

sell-to-cover, restricted stock units, employee stock purchase plan, weighted average sales price per share

4 terms

sell-to-cover financial

"The Issuer has adopted a "sell-to-cover" policy to satisfy the tax"

Sell-to-cover is when part of newly issued or exercised company stock is immediately sold to pay required taxes and fees, so the recipient keeps the remaining shares. For investors this matters because it reduces the number of shares insiders or employees actually hold after a grant, can create small, routine share sales that aren’t signal of cashing out, and slightly increases share supply on the market—like selling a portion of a paycheck to cover the tax bill.

restricted stock units financial

"to cover tax withholding obligations in connection with the vesting of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

employee stock purchase plan financial

"Includes 6,568 shares acquired under the Issuer's employee stock purchase plan"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

weighted average sales price per share financial

"Represents the weighted average sales price per share."

FAQ

What insider transaction did Butterfly Network (BFLY) report for Nicholas Caezza?

Butterfly Network reported that Deputy General Counsel Nicholas Caezza sold 1,709 shares of Class A Common Stock on September 2, 2026 at a weighted average price of $8.149 per share in an automatic, tax-related transaction under a sell-to-cover policy.

Was the BFLY insider sale by Nicholas Caezza discretionary trading?

No. The company states the sale was made under a “sell-to-cover” policy to satisfy tax withholding on restricted stock unit vesting, and that the sales were automatic and not at Caezza’s discretion.

How many Butterfly Network (BFLY) shares did Nicholas Caezza retain after the sale?

After selling 1,709 shares, Nicholas Caezza held 305,166 shares of Butterfly Network Class A Common Stock, which the company notes includes 6,568 shares acquired through its employee stock purchase plan on June 30, 2026.

At what prices were Nicholas Caezza’s BFLY shares sold?

The filing reports a weighted average sales price of $8.149 per share, with individual sales occurring at prices ranging from $8.10 to $8.28 per share. Detailed trade breakdowns are available upon request to the SEC staff, the company, or a security holder.

What is the role of restricted stock units in this BFLY Form 4 filing?

The sale of 1,709 shares was made to cover tax withholding obligations resulting from the vesting of restricted stock units (RSUs) held by Deputy General Counsel Nicholas Caezza, according to the company’s disclosure.

How many BFLY shares did Nicholas Caezza acquire via the employee stock purchase plan?

The filing notes that Caezza’s post-transaction holdings of 305,166 shares include 6,568 shares acquired under Butterfly Network’s employee stock purchase plan on June 30, 2026.

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

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Available on EDGAR 09/04/2026 - 04:20 PM Accepted by SEC EDGAR 09/04/2026 - 04:20 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^*

Caezza Nicholas

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/02/2026

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	09/02/2026		S(1)		1,709	D	$8.149(2)	305,166(3)	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. The Issuer has adopted a "sell-to-cover" policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

2. Represents the weighted average sales price per share. The shares sold at prices ranging from $8.10 to $8.28 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

3. Includes 6,568 shares acquired under the Issuer's employee stock purchase plan on June 30, 2026.

	/s/ Nick Caezza	09/04/2026
	** 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)