Ph.D. Jonathan M. Rothberg - 06 Jan 2026 Form 4 Insider Report for Butterfly Network, Inc. (BFLY)

Role
Director, 10%+ Owner
Signature
/s/ Jonathan M. Rothberg, Ph.D.
Issuer symbol
BFLY
Transactions as of
06 Jan 2026
Net transactions value
-$4,695,583
Form type
4
Filing time
08 Jan 2026, 18:14:45 UTC
Previous filing
29 Dec 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/ Jonathan M. Rothberg, Ph.D. 08 Jan 2026 0001076352

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction BFLY Class A Common Stock Sale $1,416,806 -351,617 -31% $4.03 788,563 06 Jan 2026 By JAR TR, LLC F1, F2, F3
transaction BFLY Class A Common Stock Sale $1,874,253 -452,729 -57% $4.14 335,834 07 Jan 2026 By JAR TR, LLC F1, F3, F4
transaction BFLY Class A Common Stock Sale $1,404,525 -335,834 -100% $4.18 0 08 Jan 2026 By JAR TR, LLC F1, F3, F5
holding BFLY Class A Common Stock 2,880,252 06 Jan 2026 Direct
holding BFLY Class A Common Stock 726,696 06 Jan 2026 By Bonnie E Gould Rothberg MD F3
holding BFLY Class B Common Stock 4,716,596 06 Jan 2026 By 4C Holdings I, LLC F3
holding BFLY Class B Common Stock 2,621,701 06 Jan 2026 By 4C Holdings II, LLC F3
holding BFLY Class B Common Stock 2,621,701 06 Jan 2026 By 4C Holdings III, LLC F3
holding BFLY Class B Common Stock 2,621,701 06 Jan 2026 By 4C Holdings IV, LLC F3
holding BFLY Class B Common Stock 8,845,238 06 Jan 2026 By 4C Holdings V, LLC F3
holding BFLY Class B Common Stock 1,250,000 06 Jan 2026 By NVR TR, LLC F3
holding BFLY Class B Common Stock 1,250,000 06 Jan 2026 By JNR TR, LLC F3
holding BFLY Class B Common Stock 1,250,000 06 Jan 2026 By GBR TR, LLC F3
holding BFLY Class B Common Stock 1,250,000 06 Jan 2026 By EJR TR, LLC F3
* 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 $4.00 to $4.0897 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 $4.00 to $4.2758 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 $4.04 to $4.2828 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.