FMR LLC reports 11.8% stake in Butterfly Network

Butterfly Network, Inc. received a Schedule 13G filing indicating that FMR LLC, an institutional investor, reported beneficial ownership of 28,952,296.89 shares of the company’s Class A common stock, representing 11.8% of the outstanding class.

Rhea-AI Filing Summary

Butterfly Network, Inc. received a Schedule 13G filing indicating that FMR LLC, an institutional investor, reported beneficial ownership of 28,952,296.89 shares of the company’s Class A common stock, representing 11.8% of the outstanding class. FMR LLC reports sole dispositive power over these shares and no shared voting or dispositive power.

Abigail P. Johnson is also listed as a reporting person with sole dispositive power over the same 28,952,296.89 shares, reflecting control through FMR LLC and its subsidiaries. One or more other persons may have rights to dividends or sale proceeds, but no other individual holder exceeds 5% of the Class A common stock.

Key Figures

Beneficially owned shares: 28,952,296.89 shares Percent of class owned: 11.8 % Sole voting power: 28,943,743.00 shares +3 more

6 metrics

Beneficially owned shares 28,952,296.89 shares Class A common stock beneficially owned by FMR LLC and Abigail P. Johnson

Percent of class owned 11.8 % Percentage of Butterfly Network Class A common stock reported as beneficially owned

Sole voting power 28,943,743.00 shares Shares of Butterfly Network Class A common stock with sole voting power for FMR LLC cover page

Shared voting power 0.00 shares Shares of Butterfly Network Class A common stock with shared voting power

Sole dispositive power 28,952,296.89 shares Shares of Butterfly Network Class A common stock over which FMR LLC has sole dispositive power

Shared dispositive power 0.00 shares Shares of Butterfly Network Class A common stock with shared dispositive power

Key Terms

Schedule 13G, beneficially owned, sole dispositive power, sole voting power, +1 more

5 terms

Schedule 13G regulatory

"Please see Exhibit 99 for 13d-1(k) (1) agreement."

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

beneficially owned financial

"Ownership (a) | Amount beneficially owned: 28952296.89"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power financial

"Sole Dispositive Power 28,952,296.89"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

sole voting power financial

"Sole Voting Power 28,943,743.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

percent of class financial

"Percent of class: 11.8 %"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What percentage of Butterfly Network (BFLY) does FMR LLC report owning?

FMR LLC reports beneficial ownership of 11.8% of Butterfly Network’s Class A common stock. This corresponds to 28,952,296.89 shares, over which FMR LLC has sole dispositive power and no shared voting or dispositive power.

How many Butterfly Network (BFLY) shares are beneficially owned by FMR LLC?

FMR LLC reports beneficial ownership of 28,952,296.89 Butterfly Network Class A common shares. The firm has sole dispositive power over this entire position and no shared voting or dispositive authority over any of these shares.

What is Abigail P. Johnson’s reported stake in Butterfly Network (BFLY)?

Abigail P. Johnson is listed with sole dispositive power over 28,952,296.89 Butterfly Network Class A shares, representing 11.8% of the class. This reflects her control through FMR LLC and its direct and indirect subsidiaries as described in the filing.

Does any other single holder besides FMR LLC own over 5% of Butterfly Network (BFLY) according to this filing?

The filing states that no other person has an interest in Butterfly Network’s Class A common stock exceeding 5%. However, one or more other persons may have rights to receive dividends or sale proceeds linked to the reported FMR LLC-held shares.

What voting and dispositive powers does FMR LLC report for its Butterfly Network (BFLY) position?

FMR LLC reports sole dispositive power over 28,952,296.89 shares and references sole voting power information on the cover page. It reports 0.00 shares with shared voting power and 0.00 shares with shared dispositive power in this Schedule 13G.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/07/2026 - 11:05 AM Accepted by SEC EDGAR 08/07/2026 - 11:04 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

BUTTERFLY NETWORK INC

(Name of Issuer)

CLASS A COMMON STOCK

(Title of Class of Securities)

124155102

(CUSIP Number)

07/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 124155102

1

Names of Reporting Persons

FMR LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 28,943,743.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 28,952,296.89
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

28,952,296.89

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

11.8 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 124155102

1

Names of Reporting Persons

Abigail P. Johnson

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 28,952,296.89
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

28,952,296.89

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

11.8 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: BUTTERFLY NETWORK INC
(b)	Address of issuer's principal executive offices: 1600 DISTRICT AVENUE,BURLINGTON,MA,USA,01803
Item 2.
(a)	Name of person filing: FMR LLC
(b)	Address or principal business office or, if none, residence: 245 Summer Street, Boston, Massachusetts 02210
(c)	Citizenship: Not applicable
(d)	Title of class of securities: CLASS A COMMON STOCK
(e)	CUSIP Number(s): 124155102
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 28952296.89
(b)	Percent of class: 11.8 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Please see the responses to Items 5 and 6 on the cover page.
	(ii) Shared power to vote or to direct the vote: 0.00
	(iii) Sole power to dispose or to direct the disposition of: 28952296.89
	(iv) Shared power to dispose or to direct the disposition of: 0.00
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. One or more other persons are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the CLASS A COMMON STOCK of BUTTERFLY NETWORK INC. No one other person's interest in the CLASS A COMMON STOCK of BUTTERFLY NETWORK INC is more than five percent of the total outstanding CLASS A COMMON STOCK.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See attached Exhibit 99.
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

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.

FMR LLC

Signature:	Stephanie J. Brown
Name/Title:	Duly authorized under Power of Attorney effective as of January 3, 2023, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
Date:	08/06/2026

Abigail P. Johnson

Signature:	Stephanie J. Brown
Name/Title:	Duly authorized under Power of Attorney effective as of January 26, 2023, by and on behalf of Abigail P. Johnson**
Date:	08/06/2026

Comments accompanying signature: * This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on January 10, 2023, accession number: 0000315066-23-000003. ** This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on January 31, 2023, accession number: 0000315066-23-000038.

Exhibit Information

Please see Exhibit 99 for 13d-1(k) (1) agreement.