# EDGAR Filing Document

**Accession Number:** 0001804176
**File Stem:** 0001140361-26-017120
**Filing Date:** 2026-4
**Character Count:** 4973
**Document Hash:** 63cfc47160e83f614e5780e3639d0c09
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-26-017120.hdr.sgml**: 20260427

**ACCESSION NUMBER**: 0001140361-26-017120

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260427

**DATE AS OF CHANGE**: 20260427

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Butterfly Network, Inc.
- **CENTRAL INDEX KEY:** 0001804176
- **STANDARD INDUSTRIAL CLASSIFICATION:** X-RAY APPARATUS & TUBES & RELATED IRRADIATION APPARATUS [3844]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39292
- **FILM NUMBER:** 26901369

**BUSINESS ADDRESS:**
- **STREET 1:** 1600 DISTRICT AVENUE
- **CITY:** BURLINGTON
- **STATE:** MA
- **ZIP:** 01803
- **BUSINESS PHONE:** 781-557-4800

**MAIL ADDRESS:**
- **STREET 1:** 1600 DISTRICT AVENUE
- **CITY:** BURLINGTON
- **STATE:** MA
- **ZIP:** 01803

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Longview Acquisition Corp.
- **DATE OF NAME CHANGE:** 20200220

### UNITED STATES <br>

### SECURITIES AND EXCHANGE COMMISSION <br>

### WASHINGTON, D.C. 20549

### SCHEDULE 14A INFORMATION <br>

### Proxy Statement Pursuant to Section 14(a) of the <br>

### Securities Exchange Act of 1934 <br>

### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

### (Amendment No.)
Filed by the Registrant ☒ Filed by a party other than the Registrant ☐

Check the appropriate box:

☐ Preliminary Proxy Statement 

☐ **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))** 

☐ Definitive Proxy Statement 

☒ Definitive Additional Materials 

☐ Soliciting Material under §240.14a-12

## BUTTERFLY NETWORK, INC. <br>

## (Name of Registrant as Specified in Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

☒ No fee required <br> ☐ Fee paid previously with preliminary materials <br> ☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

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Your Vote Counts! BUTTERFLY NETWORK, INC. 1600 DISTRICT AVENUE BURLINGTON, MA 01803 BUTTERFLY NETWORK, INC. 2025 Annual Meeting of Stockholders Vote by June 11, 2025 11:59 PM ET You invested in BUTTERFLY NETWORK, INC. and it's time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy materials for the stockholder meeting to be held on June 12, 2025. Get informed before you vote View the Notice and Proxy Statement, form of proxy and 2024 Annual Report online at www.ProxyVote.com OR you can receive a free paper or email copy of the material(s) by requesting prior to May 29, 2025. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. Vote Virtually at the Meeting\* June 12, 2025 11:00 a.m. Eastern Time Virtually at: www.virtualshareholdermeeting.com/BFLY2025 \*Please check the meeting materials for any special requirements for meeting attendance. Smartphone users Point your camera here and vote without entering a control number For complete information and to vote, visit www.ProxyVote.com Control # V74538-P32333

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Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. Please follow the instructions on the reverse side to vote these important matters. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click "Delivery Settings". Voting Items Board Recommends 1. To elect seven directors to serve one-year terms expiring in 2026. For Nominees: 1a. Joseph DeVivo 1b. Jonathan M. Rothberg, Ph.D. For 1c. Larry Robbins For 1d. Dawn Carfora For 1e. Elazer Edelman, M.D., Ph.D. For 1f. S. Louise Phanstiel For 1g. Erica Schwartz, M.D., J.D., M.P.H. For 2. To ratify the appointment of Deloitte & Touche LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2025. For 3. To approve by a non-binding advisory vote the compensation of the Company's named executive officers, as disclosed in the proxy statement. For NOTE: In their discretion, the proxies are authorized to vote on such other business as may properly come before the Annual Meeting or any adjournment or postponement thereof. V74539-P32333

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