Key facts
- This page summarizes Ph.D. Jonathan M. Rothberg's Form 4 filing for Butterfly Network, Inc. (BFLY).
- 4 reported transactions and 0 derivative rows are listed below.
- Accepted by SEC: 24 Jul 2026, 16:57.
Ph.D. Jonathan M. Rothberg - 22 Jul 2026 Form 4 Insider Report for Butterfly Network, Inc. (BFLY)
- Reporting relationship
- Director
- Issuer ticker
- BFLY
- Reported as of
- 22 Jul 2026
- Net transaction value
- -$4,269,505
- SEC form
- 4
- Accepted by SEC
- 24 Jul 2026, 16:57:40 UTC
- Prior SEC filing
- 21 Jul 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Jonathan M. Rothberg, Ph.D.
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Ph.D. Jonathan M. Rothberg filed Form 4 for Butterfly Network, Inc. (BFLY) on 24 Jul 2026.
Change
- Previous filing in this sequence was filed on 21 Jul 2026.
- Current net transaction value: -$4,269,505.
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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001076352
Primary reporting owner
ROTHBERG JONATHAN M
- Relationship
- Director
- Address
- C/O BUTTERFLY NETWORK, INC., 1600 DISTRICT AVENUE, BURLINGTON
- Signature
- /s/ Jonathan M. Rothberg, Ph.D.
- Signature date
- 24 Jul 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
BFLY
transaction
Class B Common Stock
Sale
- Transaction value
- $350,294
- Shares
- -54,143
- Change %
- -100%
- Price
- $6.47
- Shares after
- 0
- Date
- 22 Jul 2026
- Ownership
- By GBR TR, LLC
- Footnotes
- F1, F2, F3, F4
BFLY
transaction
Class B Common Stock
Sale
- Transaction value
- $470,510
- Shares
- -72,724
- Change %
- -100%
- Price
- $6.47
- Shares after
- 0
- Date
- 22 Jul 2026
- Ownership
- By NVR TR, LLC
- Footnotes
- F1, F2, F3, F4
BFLY
transaction
Class B Common Stock
Sale
- Transaction value
- $3,213,420
- Shares
- -496,680
- Change %
- -100%
- Price
- $6.47
- Shares after
- 0
- Date
- 22 Jul 2026
- Ownership
- By EJR TR, LLC
- Footnotes
- F1, F2, F3, F4
BFLY
transaction
Class B Common Stock
Sale
- Transaction value
- $235,281
- Shares
- -36,366
- Change %
- -100%
- Price
- $6.47
- Shares after
- 0
- Date
- 22 Jul 2026
- Ownership
- By JNR TR, LLC
- Footnotes
- F1, F2, F3, F4
BFLY
holding
Class A Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 105,881
- Date
- 22 Jul 2026
- Ownership
- Direct
BFLY
holding
Class A Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 726,696
- Date
- 22 Jul 2026
- Ownership
- By Bonnie E Gould Rothberg MD
- Footnotes
- F4
BFLY
holding
Class B Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 4,716,596
- Date
- 22 Jul 2026
- Ownership
- By 4C Holdings I, LLC
- Footnotes
- F4
BFLY
holding
Class B Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 2,621,701
- Date
- 22 Jul 2026
- Ownership
- By 4C Holdings II, LLC
- Footnotes
- F4
BFLY
holding
Class B Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 2,621,701
- Date
- 22 Jul 2026
- Ownership
- By 4C Holdings III, LLC
- Footnotes
- F4
BFLY
holding
Class B Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 2,621,701
- Date
- 22 Jul 2026
- Ownership
- By 4C Holdings IV, LLC
- Footnotes
- F4
BFLY
holding
Class B Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 8,845,238
- Date
- 22 Jul 2026
- Ownership
- By 4C Holdings V, LLC
- Footnotes
- F4
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Rule 10b5-1 trading plan
These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.
Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).
Explanation of responses 4 footnotes
Footnote F1
In accordance with its terms, the Class B common stock automatically converted into Class A common stock, on a one-to-one basis, upon sale.
Footnote F2
The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2026 for estate planning purposes.
Footnote F3
Represents the weighted average sales price per share. The shares sold at prices ranging from $6.355 to $6.78 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.
Footnote F4
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, 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.