Jonathan M. Rothberg - Nov 24, 2025 Form 4 Insider Report for Butterfly Network, Inc. (BFLY)

Role
Director, 10%+ Owner
Signature
/s/ Michael Fantozzi, Attorney-in-Fact for Jonathan M. Rothberg, Ph.D.
Stock symbol
BFLY
Transactions as of
Nov 24, 2025
Transactions value $
-$7,089,930
Form type
4
Date filed
11/26/2025, 07:58 PM
Previous filing
Nov 5, 2025
Next filing
Dec 2, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
ROTHBERG JONATHAN M Director, 10%+ Owner C/O BUTTERFLY NETWORK, INC., 1600 DISTRICT AVENUE, BURLINGTON /s/ Michael Fantozzi, Attorney-in-Fact for Jonathan M. Rothberg, Ph.D. 2025-11-26 0001076352

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BFLY Class A Common Stock Sale -$1.17M -370K -32.47% $3.15 770K Nov 24, 2025 By EJR TR, LLC F1, F2, F3
transaction BFLY Class A Common Stock Sale -$1.17M -370K -29.84% $3.15 870K Nov 24, 2025 By JNR TR, LLC F1, F2, F3
transaction BFLY Class A Common Stock Sale -$1.17M -370K -29.84% $3.15 870K Nov 24, 2025 By GBR TR, LLC F1, F2, F3
transaction BFLY Class A Common Stock Sale -$735K -225K -29.22% $3.27 545K Nov 25, 2025 By EJR TR, LLC F1, F3, F4
transaction BFLY Class A Common Stock Sale -$735K -225K -25.84% $3.27 645K Nov 25, 2025 By JNR TR, LLC F1, F3, F4
transaction BFLY Class A Common Stock Sale -$735K -225K -25.84% $3.27 645K Nov 25, 2025 By GBR TR, LLC F1, F3, F4
transaction BFLY Class A Common Stock Sale -$1.39M -443K -35.67% $3.13 798K Nov 26, 2025 By NVR TR, LLC F1, F3, F5
holding BFLY Class A Common Stock 2.88M Nov 24, 2025 Direct
holding BFLY Class A Common Stock 1.24M Nov 24, 2025 By JAR TR, LLC F3
holding BFLY Class A Common Stock 727K Nov 24, 2025 By Bonnie E Gould Rothberg MD F3
holding BFLY Class B Common Stock 4.72M Nov 24, 2025 By 4C Holdings I, LLC F3
holding BFLY Class B Common Stock 2.62M Nov 24, 2025 By 4C Holdings II, LLC F3
holding BFLY Class B Common Stock 2.62M Nov 24, 2025 By 4C Holdings III, LLC F3
holding BFLY Class B Common Stock 2.62M Nov 24, 2025 By 4C Holdings IV, LLC F3
holding BFLY Class B Common Stock 8.85M Nov 24, 2025 By 4C Holdings V, LLC F3
holding BFLY Class B Common Stock 1.25M Nov 24, 2025 By NVR TR, LLC F3, F6
holding BFLY Class B Common Stock 1.25M Nov 24, 2025 By JNR TR, LLC F3, F6
holding BFLY Class B Common Stock 1.25M Nov 24, 2025 By GBR TR, LLC F3, F6
holding BFLY Class B Common Stock 1.25M Nov 24, 2025 By EJR TR, LLC F3, F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2025 for estate planning purposes.
F2 Represents the weighted average sales price per share. The shares sold at prices ranging from $3.07 to $3.15 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.
F3 Dr. Rothberg is the Manager of 4C Holdings I, LLC, 4C Holdings II, LLC, 4C Holdings III, LLC, 4C Holdings IV, LLC, 4C Holdings V, LLC, NVR TR, LLC, JNR TR, LLC, JAR TR, LLC, GBR TR, LLC and EJR TR, LLC, and is the spouse of Bonnie E Gould Rothberg MD. Dr. Rothberg disclaims beneficial ownership of the securities held by these persons and entities except to the extent of his pecuniary interest therein.
F4 Represents the weighted average sales price per share. The shares sold at prices ranging from $3.16 to $3.27 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.
F5 Represents the weighted average sales price per share. The shares sold at prices ranging from $3.13 to $3.37 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.
F6 Includes shares of Class B common stock previously held by 4C Holdings I, LLC that were distributed for estate planning purposes to NVR TR, LLC, JNR TR, LLC, GBR TR, LLC and EJR TR, LLC.