Form SCHEDULE 13D/A Butterfly Network, Inc. Filed by: ROTHBERG JONATHAN M
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 |
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 11)*
|
Butterfly Network, Inc. (Name of Issuer) |
Class A common stock, par value $0.0001 per share, Class B common stock, par value $0.0001 per share (Title of Class of Securities) |
(CUSIP Number) |
Jonathan M. Rothberg, Ph.D. c/o Butterfly Network, Inc.,, 1600 District Avenue Burlington, MA, 01803 (781) 557-4800 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) |
07/21/2026 (Date of Event Which Requires Filing of This Statement) |
If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.
The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the
Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other
provisions of the Act (however, see the Notes).
SCHEDULE 13D
|
| CUSIP No. |
| 1 |
Name of reporting person
Rothberg Jonathan M. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b) | ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
UNITED STATES
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
828,775.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
0.4 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IN |
Comment for Type of Reporting Person:
This Reporting Person's table is for Class A common stock.
Rows 7, 9 and 11 consists of (i) 80,434 shares of Class A common stock of Butterfly Network, Inc. (f/k/a Longview Acquisition Corp.) (the "Issuer") held by Jonathan M. Rothberg, Ph.D. and (ii) stock options to purchase 21,645 shares of Class A common stock of the Issuer which are exercisable within 60 days of July 21, 2026, held by Dr. Jonathan M. Rothberg.
Rows 8, 10 and 11 consists of 726,696 shares of Class A common stock of the Issuer held by Dr. Rothberg's spouse.
Row 13 is calculated based on 234,842,768 shares of Class A common stock of the Issuer outstanding as of April 20, 2026.
SCHEDULE 13D
|
| CUSIP No. |
| 1 |
Name of reporting person
Rothberg Jonathan M. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b) | ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
UNITED STATES
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
22,086,850.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
100 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IN |
Comment for Type of Reporting Person:
This Reporting Person's table is for Class B common stock.
Rows 7, 9 and 11 consists of 22,086,850 shares of Class B common stock of the Issuer held by 4C Holdings I, LLC, 4C Holdings II, LLC, 4C Holdings III, LLC, 4C Holdings IV, LLC and 4C Holdings V, LLC and shares distributed from 4C Holdings I, LLC and held by entities owned by trusts created for the benefit of Dr. Jonathan Rothberg's children.
Row 13 is calculated based on 22,086,850 shares of Class B common stock of the Issuer outstanding as of July 21, 2026.
SCHEDULE 13D
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| CUSIP No. |
| 1 |
Name of reporting person
4C Holdings I, LLC | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b) | ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
4,716,596.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
21.4 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
OO |
Comment for Type of Reporting Person:
This Reporting Person's table is for Class B common stock.
Row 13 is calculated based on 22,086,850 shares of Class B common stock of the Issuer outstanding as of July 21, 2026.
SCHEDULE 13D
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| CUSIP No. |
| 1 |
Name of reporting person
4C Holdings II, LLC | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b) | ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
2,621,701.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
11.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
OO |
Comment for Type of Reporting Person:
This Reporting Person's table is for Class B common stock.
Row 13 is calculated based on 22,086,850 shares of Class B common stock of the Issuer outstanding as of July 21, 2026.
SCHEDULE 13D
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| CUSIP No. |
| 1 |
Name of reporting person
4C Holdings III, LLC | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b) | ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
2,621,701.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
11.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
OO |
Comment for Type of Reporting Person:
This Reporting Person's table is for Class B common stock.
Row 13 is calculated based on 22,086,850 shares of Class B common stock of the Issuer outstanding as of July 21, 2026.
SCHEDULE 13D
|
| CUSIP No. |
| 1 |
Name of reporting person
4C Holdings IV, LLC | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b) | ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
2,621,701.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
11.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
OO |
Comment for Type of Reporting Person:
This Reporting Person's table is for Class B common stock.
Row 13 is calculated based on 22,086,850 shares of Class B common stock of the Issuer outstanding as of July 21, 2026.
SCHEDULE 13D
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| CUSIP No. |
| 1 |
Name of reporting person
4C Holdings V, LLC | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b) | ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
PF | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
| ||||||||
| 6 | Citizenship or place of organization
DELAWARE
| ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 11 | Aggregate amount beneficially owned by each reporting person
8,845,238.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
40.0 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
OO |
Comment for Type of Reporting Person:
This Reporting Person's table is for Class B common stock.
Row 13 is calculated based on 22,086,850 shares of Class B common stock of the Issuer outstanding as of July 21, 2026.
SCHEDULE 13D
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| Item 1. | Security and Issuer | |
| (a) | Title of Class of Securities:
Class A common stock, par value $0.0001 per share, Class B common stock, par value $0.0001 per share | |
| (b) | Name of Issuer:
Butterfly Network, Inc. | |
| (c) | Address of Issuer's Principal Executive Offices:
1600 District Avenue, Burlington,
MASSACHUSETTS
, 01803. | |
Item 1 Comment:
Explanatory Note
This Amendment No. 11 to Schedule 13D ("Amendment No. 11") amends and supplements the Schedule 13D filed on February 22, 2021, as amended by Amendment No. 1 filed on March 26, 2021, Amendment No. 2 filed on March 28, 2022, Amendment No. 3 filed on September 16, 2022, Amendment No. 4 filed on September 13, 2023, Amendment No. 5 filed on August 30, 2024, Amendment No. 6 filed on March 7, 2025, Amendment No. 7 filed on December 1, 2025, Amendment No. 8 filed on December 17, 2025, Amendment No. 9 filed on March 17, 2026 and Amendment No. 10 filed on July 17, 2026 (as amended, the "Schedule 13D") relating to the Class A common stock, par value $0.0001 per share, and Class B common stock, par value $0.0001 per share, of Butterfly Network, Inc. (f/k/a Longview Acquisition Corp.), a Delaware corporation (the "Issuer"). Information reported in the Schedule 13D remains in effect except to the extent that it is amended, restated or superseded by information contained in this Amendment No. 11. Capitalized terms used but not defined herein have the meanings ascribed to them in the Schedule 13D. | ||
| Item 5. | Interest in Securities of the Issuer | |
| (c) | Item 5 of the Schedule 13D is hereby amended and supplemented by adding the following:
The following transactions were effected by the Reporting Persons since the most recent filing of the Reporting Persons on Schedule 13D. All transactions below were effected by the Reporting Persons in connection with estate planning and pursuant to a Rule 10b5-1 trading plan entered into on March 13, 2026.
On July 17, 2026, 1,195,857 shares of Class B common stock were sold at a weighted average price per share of $6.5959. 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.
On July 20, 2026, 1,177,276 shares of Class B common stock were sold at a weighted average price per share of $6.6138. 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.
On July 21, 2026, 753,320 shares of Class B common stock were sold at a weighted average price per share of $6.7359. 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. | |
| SIGNATURE | |
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
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