S. Louise Phanstiel - 14 Aug 2026 Form 4 Insider Report for Butterfly Network, Inc. (BFLY)

Reporting relationship: Director
Issuer ticker: BFLY
Reported as of: 14 Aug 2026
Net transaction value: +$999,510
SEC form: 4
Accepted by SEC: 17 Aug 2026, 16:51:23 UTC
Prior SEC filing: 22 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Nick Caezza, Attorney-in-Fact

Key filing fact

S. Louise Phanstiel filed Form 4 for Butterfly Network, Inc. (BFLY) on 17 Aug 2026.

Key facts

This page summarizes S. Louise Phanstiel's Form 4 filing for Butterfly Network, Inc. (BFLY).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 17 Aug 2026, 16:51.

Change

Previous filing in this sequence was filed on 22 Jun 2026.
Current net transaction value: +$999,510.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001471518 Primary reporting owner

Phanstiel S. Louise

Relationship: Director
Address: C/O BUTTERFLY NETWORK, INC., 1600 DISTRICT AVENUE, BURLINGTON
Signature: /s/ Nick Caezza, Attorney-in-Fact
Signature date: 17 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BFLY transaction

Class A Common Stock

Purchase

Transaction value: $999,510
Shares: +115,200
Change %: +62%
Price: $8.68
Shares after: 300,461
Date: 14 Aug 2026
Ownership: By The Phanstiel Trust u/a/d 2/5/02
Footnotes: F1

BFLY holding

Class A Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 390,952
Date: 14 Aug 2026
Ownership: Direct

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Represents the weighted average purchase price per share. The shares were purchased at prices ranging from $8.49 to $8.865 per share. Full information regarding the number of shares purchased 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.