Butterfly Network (BFLY) insider-linked entity reports planned Class A stock sales

Rhea-AI Filing Summary

Butterfly Network, Inc. director and 10% owner Jonathan M. Rothberg reported sales of Class A common stock made indirectly through JAR TR, LLC. JAR TR, LLC sold 351,617 shares on 01/06/2026 at a weighted average price of $4.0294, 452,729 shares on 01/07/2026 at $4.1399, and 335,834 shares on 01/08/2026 at $4.1822, leaving no Class A shares held by that entity after the reported transactions.

The sales were effected under a Rule 10b5-1 trading plan adopted on March 5, 2025 for estate-planning purposes. Rothberg remains associated with substantial holdings of Class A and Class B common stock through direct ownership, his spouse, and multiple LLC and trust entities, while disclaiming beneficial ownership of those securities except to the extent of his pecuniary interest.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

ROTHBERG JONATHAN M

(Last) (First) (Middle)

C/O BUTTERFLY NETWORK, INC.

1600 DISTRICT AVENUE

(Street)

BURLINGTON MA 01803

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Butterfly Network, Inc. [ BFLY ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/06/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	01/06/2026		S(1)		351,617	D	$4.0294(2)	788,563	I	By JAR TR, LLC(3)
Class A Common Stock	01/07/2026		S(1)		452,729	D	$4.1399(4)	335,834	I	By JAR TR, LLC(3)
Class A Common Stock	01/08/2026		S(1)		335,834	D	$4.1822(5)	0	I	By JAR TR, LLC(3)
Class A Common Stock								2,880,252	D
Class A Common Stock								726,696	I	By Bonnie E Gould Rothberg MD(3)
Class B Common Stock								4,716,596	I	By 4C Holdings I, LLC(3)
Class B Common Stock								2,621,701	I	By 4C Holdings II, LLC(3)
Class B Common Stock								2,621,701	I	By 4C Holdings III, LLC(3)
Class B Common Stock								2,621,701	I	By 4C Holdings IV, LLC(3)
Class B Common Stock								8,845,238	I	By 4C Holdings V, LLC(3)
Class B Common Stock								1,250,000	I	By NVR TR, LLC(3)
Class B Common Stock								1,250,000	I	By JNR TR, LLC(3)
Class B Common Stock								1,250,000	I	By GBR TR, LLC(3)
Class B Common Stock								1,250,000	I	By EJR TR, LLC(3)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

	/s/ Jonathan M. Rothberg, Ph.D.	01/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

Who is the insider in Butterfly Network (BFLY) involved in this Form 4?

The Form 4 reports transactions by Jonathan M. Rothberg, who is listed as both a director and 10% owner of Butterfly Network, Inc.

How many Butterfly Network (BFLY) Class A shares did the insider-linked entity sell?

JAR TR, LLC, an entity associated with Jonathan M. Rothberg, sold 351,617 Class A shares on 01/06/2026, 452,729 shares on 01/07/2026, and 335,834 shares on 01/08/2026.

What sale prices were reported for the Butterfly Network (BFLY) insider transactions?

The reported weighted average prices were $4.0294 per share on 01/06/2026, $4.1399 on 01/07/2026, and $4.1822 on 01/08/2026, with detailed price breakdowns available on request.

Were the Butterfly Network (BFLY) insider sales made under a 10b5-1 trading plan?

Yes. The transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2025 for estate planning purposes.

Does Jonathan M. Rothberg still have Butterfly Network (BFLY) share exposure after these sales?

Yes. The Form 4 lists ongoing holdings of Class A and Class B common stock held directly, by his spouse, and by multiple LLC and trust entities associated with him.

How are the LLC and trust holdings in Butterfly Network (BFLY) treated for ownership?

The filing states that Dr. Rothberg is the manager of several LLC and trust entities holding Butterfly Network shares and that he disclaims beneficial ownership of their securities except to the extent of his pecuniary interest.

What types of securities does the Butterfly Network (BFLY) Form 4 cover?

The Form 4 covers Class A common stock sales by JAR TR, LLC and reports continuing holdings in both Class A and Class B common stock through various entities.