STOCK TITAN

Butterfly Network (BFLY) director granted 25,447 RSUs in equity award

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

ROTHBERG JONATHAN M reported acquisition or exercise transactions in this Form 4 filing.

Butterfly Network, Inc. director and greater-than-10% owner Jonathan M. Rothberg reported an equity compensation grant and updated his holdings. He received 25,447 restricted stock units (RSUs) of Class A common stock at a price of $0.00 per share as a nonemployee director award.

Each RSU represents one share of Class A common stock when it vests. The RSUs vest in full on the date of Butterfly Network’s 2027 Annual Stockholders Meeting, subject to Dr. Rothberg’s continued service on the Board through that date. Following this grant, he directly holds 2,905,699 Class A shares.

The filing also lists significant indirect holdings in Class B common stock through multiple LLCs and in Class A shares held by his spouse, with Dr. Rothberg disclaiming beneficial ownership of those securities except to the extent of his pecuniary interest.

Positive

  • None.

Negative

  • None.
Insider ROTHBERG JONATHAN M
Role null
Type Security Shares Price Value
Grant/Award Class A Common Stock 25,447 $0.00 --
holding Class A Common Stock -- -- --
holding Class B Common Stock -- -- --
holding Class B Common Stock -- -- --
holding Class B Common Stock -- -- --
holding Class B Common Stock -- -- --
holding Class B Common Stock -- -- --
holding Class B Common Stock -- -- --
holding Class B Common Stock -- -- --
holding Class B Common Stock -- -- --
holding Class B Common Stock -- -- --
Holdings After Transaction: Class A Common Stock — 2,905,699 shares (Direct, null); Class A Common Stock — 726,696 shares (Indirect, By Bonnie E Gould Rothberg MD); Class B Common Stock — 4,716,596 shares (Indirect, By 4C Holdings I, LLC)
Footnotes (1)
  1. Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of Class A common stock upon vesting. The RSUs were issued to the Reporting Person as the annual grant to nonemployee directors pursuant to the Issuer's Amended and Restated Nonemployee Director Compensation Policy for services to be rendered to the Issuer as a member of its Board of Directors. The RSUs vest in full on the date of the Issuer's 2027 Annual Stockholders Meeting, subject to the Reporting Person's continued service on the Board of Directors on such date. 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.
RSU grant size 25,447 RSUs Class A common stock grant to nonemployee director
RSU grant price $0.00 per share Equity compensation award, not open-market purchase
Direct Class A holdings 2,905,699 shares Total Class A shares directly held after RSU grant
4C Holdings V Class B 8,845,238 shares Class B common stock held indirectly via 4C Holdings V, LLC
4C Holdings I Class B 4,716,596 shares Class B common stock held indirectly via 4C Holdings I, LLC
Spousal Class A holdings 726,696 shares Class A shares held indirectly by spouse Bonnie E Gould Rothberg MD
restricted stock units ("RSUs") financial
"Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share"
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
Amended and Restated Nonemployee Director Compensation Policy financial
"annual grant to nonemployee directors pursuant to the Issuer's Amended and Restated Nonemployee Director Compensation Policy"
Class B Common Stock financial
"security_title: "Class B Common Stock""
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
pecuniary interest financial
"disclaims beneficial ownership of the securities held by these persons and entities except to the extent of his pecuniary interest therein"
beneficial ownership financial
"disclaims beneficial ownership of the securities held by these persons and entities"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
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SEC Form 4
FORM 4UNITED 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
Estimated average burden
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).
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 MASSACHUSETTS 01803

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Butterfly Network, Inc. [ BFLY ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/22/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Class A Common Stock06/22/2026A25,447(1)A$0.002,905,699D
Class A Common Stock726,696IBy Bonnie E Gould Rothberg MD(2)
Class B Common Stock4,716,596IBy 4C Holdings I, LLC(2)
Class B Common Stock2,621,701IBy 4C Holdings II, LLC(2)
Class B Common Stock2,621,701IBy 4C Holdings III, LLC(2)
Class B Common Stock2,621,701IBy 4C Holdings IV, LLC(2)
Class B Common Stock8,845,238IBy 4C Holdings V, LLC(2)
Class B Common Stock1,250,000IBy NVR TR, LLC(2)
Class B Common Stock1,250,000IBy JNR TR, LLC(2)
Class B Common Stock1,250,000IBy GBR TR, LLC(2)
Class B Common Stock1,250,000IBy EJR TR, LLC(2)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of Class A common stock upon vesting. The RSUs were issued to the Reporting Person as the annual grant to nonemployee directors pursuant to the Issuer's Amended and Restated Nonemployee Director Compensation Policy for services to be rendered to the Issuer as a member of its Board of Directors. The RSUs vest in full on the date of the Issuer's 2027 Annual Stockholders Meeting, subject to the Reporting Person's continued service on the Board of Directors on such date.
2. 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.
/s/ Michael Fantozzi, Attorney-in-Fact for Jonathan M. Rothberg, Ph.D.06/22/2026
** Signature of Reporting PersonDate
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Butterfly Network (BFLY) director Jonathan Rothberg report?

Dr. Jonathan Rothberg reported receiving 25,447 restricted stock units of Butterfly Network Class A common stock as a nonemployee director grant. The award is part of the company’s director compensation policy and represents equity compensation rather than an open-market purchase or sale.

How many RSUs were granted to Butterfly Network (BFLY) director Jonathan Rothberg and on what terms?

He was granted 25,447 restricted stock units of Class A common stock at $0.00 per share. Each RSU converts into one share upon vesting, which occurs on the date of Butterfly Network’s 2027 Annual Stockholders Meeting if he remains on the Board.

When do Jonathan Rothberg’s new Butterfly Network (BFLY) RSUs vest?

The 25,447 restricted stock units vest in full on the date of Butterfly Network’s 2027 Annual Stockholders Meeting. Vesting is contingent on Dr. Rothberg’s continued service as a member of the Board of Directors through that meeting date.

What are Jonathan Rothberg’s direct Class A holdings in Butterfly Network (BFLY) after this Form 4?

After the RSU grant, Dr. Rothberg directly holds 2,905,699 shares of Butterfly Network Class A common stock. This total includes the newly awarded 25,447 RSUs reported as a grant under the company’s Amended and Restated Nonemployee Director Compensation Policy.

Is Jonathan Rothberg’s Butterfly Network (BFLY) Form 4 an open-market buy or sell?

No, the Form 4 shows an equity award, not a market trade. The only coded transaction is an “A” code grant of 25,447 RSUs issued as nonemployee director compensation, rather than a discretionary purchase or sale on the open market.