Victor Ku - 22 Sep 2025 Form 4 Insider Report for Butterfly Network, Inc. (BFLY)

Role: Chief Technology Officer
Signature: /s/ Nick Caezza, Attorney-in-Fact
Issuer symbol: BFLY
Transactions as of: 22 Sep 2025
Net transactions value: $0
Form type: 4
Filing time: 24 Sep 2025, 16:09:25 UTC
Next filing: 07 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Ku Victor	Chief Technology Officer	C/O BUTTERFLY NETWORK, INC., 1600 DISTRICT AVENUE, BURLINGTON	/s/ Nick Caezza, Attorney-in-Fact	24 Sep 2025	0002087062

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	BFLY	Class A Common Stock	Award	$0	+565,287		$0.000000	565,287	22 Sep 2025	Direct	F1
transaction	BFLY	Class A Common Stock	Award	$0	+282,643	+50%	$0.000000	847,930	22 Sep 2025	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of Class A Common Stock ("Common Stock") upon vesting. One-third of the RSUs underlying this grant vest on September 22, 2026, and the remainder shall vest on a pro rata annual basis over the next two years, subject to the Reporting Person's continued service through the applicable vesting date.
F2	Consists of performance-based RSUs. The RSUs underlying this grant shall vest as follows: (i) one-third shall vest upon the achievement of a price for the Common Stock equal to or exceeding $3.00 per share, (ii) one-third shall vest upon the achievement of a price for the Common Stock equal to or exceeding $4.50 per share and (iii) one-third shall vest upon the achievement of a price for the Common Stock equal to or exceeding $6.00 per share. In each case, the closing stock price for 20 consecutive trading days must equal or exceed the share price targets, provided such share price is achieved prior to September 22, 2030, subject to the Reporting Person's continued service through the applicable vesting date.

Content

Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of Class A Common Stock ("Common Stock") upon vesting. One-third of the RSUs underlying this grant vest on September 22, 2026, and the remainder shall vest on a pro rata annual basis over the next two years, subject to the Reporting Person's continued service through the applicable vesting date.

Consists of performance-based RSUs. The RSUs underlying this grant shall vest as follows: (i) one-third shall vest upon the achievement of a price for the Common Stock equal to or exceeding $3.00 per share, (ii) one-third shall vest upon the achievement of a price for the Common Stock equal to or exceeding $4.50 per share and (iii) one-third shall vest upon the achievement of a price for the Common Stock equal to or exceeding $6.00 per share. In each case, the closing stock price for 20 consecutive trading days must equal or exceed the share price targets, provided such share price is achieved prior to September 22, 2030, subject to the Reporting Person's continued service through the applicable vesting date.