# EDGAR Filing Document

**Accession Number:** 0001127537
**File Stem:** 0001140361-26-016107
**Filing Date:** 2026-4
**Character Count:** 2316
**Document Hash:** fed679640eeab11d6e2b05f23e4d573a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-26-016107.hdr.sgml**: 20260422

**ACCESSION NUMBER**: 0001140361-26-016107

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260422

**DATE AS OF CHANGE**: 20260422

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Pulmonx Corp
- **CENTRAL INDEX KEY:** 0001127537
- **STANDARD INDUSTRIAL CLASSIFICATION:** SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
- **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:** 001-39562
- **FILM NUMBER:** 26883817

**BUSINESS ADDRESS:**
- **STREET 1:** 700 CHESAPEAKE DRIVE
- **CITY:** REDWOOD CITY
- **STATE:** CA
- **ZIP:** 94063
- **BUSINESS PHONE:** 650-364-0400

**MAIL ADDRESS:**
- **STREET 1:** 700 CHESAPEAKE DRIVE
- **CITY:** REDWOOD CITY
- **STATE:** CA
- **ZIP:** 94063

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PULMONX
- **DATE OF NAME CHANGE:** 20001031

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### <br>

### SCHEDULE 14A

#### (Rule 14a-101)

#### INFORMATION REQUIRED IN PROXY STATEMENT<br>

#### SCHEDULE 14A INFORMATION<br>

#### <br>

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

#### Securities Exchange Act of 1934

#### (Amendment No.)

#### <br>
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 Pursuant to § 240.14a-12

## PULMONX CORPORATION

#### (Name of Registrant as Specified In Its Charter)

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

#### (Name of Person(s) Filing Proxy Statement if Other Than the Registrant)

#### <br>
Payment of Filing Fee (Check all boxes that apply):

☒ No fee required.

☐ Fee paid previously with preliminary materials

☐ 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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