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Form 8-K

sec.gov

8-K — Pulmonx Corp

Accession: 0001127537-26-000035

Filed: 2026-07-29

Period: 2026-07-29

CIK: 0001127537

SIC: 3841 (SURGICAL & MEDICAL INSTRUMENTS & APPARATUS)

Item: Results of Operations and Financial Condition

Documents

8-K — lung-20260729.htm (Primary)

EX-99.1 (lung2q26earningsrelease072.htm)

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8-K

8-K (Primary)

Filename: lung-20260729.htm · Sequence: 1

lung-20260729

0001127537FALSE00011275372026-07-292026-07-29

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 29, 2026

PULMONX CORPORATION

(Exact name of Registrant as Specified in Its Charter)

Delaware 001-39562 77-0424412

(State or Other Jurisdiction (Commission File Number) (IRS Employer

of Incorporation) Identification No.)

700 Chesapeake Drive

Redwood City, CA 94063

(Address of Principal Executive Offices) (Zip Code)

(650)364-0400

Registrant's telephone number, including area code

Not Applicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below):

☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock, $0.001 par value LUNG The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

On July 29, 2026, Pulmonx Corporation (the “Company”) issued a press release announcing its financial results for the second fiscal quarter ended June 30, 2026. A copy of the Company’s press release dated July 29, 2026, titled “Pulmonx Reports Second Quarter 2026 Financial Results” is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The foregoing information (including the exhibit hereto) is being furnished under “Item 2.02 Results of Operations and Financial Condition” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

(d)Exhibits.

Exhibit No. Description

99.1

Press release dated July 29, 2026

104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Pulmonx Corporation

Dated: July 29, 2026

By:

/s/ Derrick Sung

Derrick Sung, Ph.D.

Chief Operating Officer and Chief Financial Officer

EX-99.1

EX-99.1

Filename: lung2q26earningsrelease072.htm · Sequence: 2

Document

Exhibit 99.1

Pulmonx Reports Second Quarter 2026 Financial Results

Redwood City, CA - July 29, 2026 – Pulmonx Corporation (Nasdaq: LUNG) (“Pulmonx” or the “Company”), a global leader in minimally invasive treatments for lung disease, today reported financial results for the second quarter of 2026 ended June 30, 2026.

Recent Highlights

•Achieved worldwide revenue of $22.8 million in the second quarter of 2026, a 5% decrease over the same period last year and a decrease of 6% on a constant currency basis

•Delivered $14.2 million in U.S. revenue in the second quarter of 2026, representing a 4% year-over-year decrease

•Delivered $8.6 million in international revenue in the second quarter of 2026, representing a 6% year-over-year decrease and a decrease of 9% on a constant currency basis; excluding China, year-over-year international revenue increased 12% and 9% on a constant currency basis

•Achieved record gross margin of 78% in the second quarter of 2026

•Demonstrated operating leverage from cost realignment efforts, reducing net loss by 34% and adjusted EBITDA loss by 39% in the second quarter of 2026 as compared to the same period last year

“We are pleased with the progress we made in the second quarter executing our commercial strategy, advancing our clinical initiatives, and beginning to deliver the significant operating leverage we expected,” said Glen French, President and Chief Executive Officer of Pulmonx. “With a fully staffed US sales leadership team, a more focused global commercial team, and a realigned cost structure, we are confident in our ability to return to year-over-year revenue growth and drive meaningful operating leverage while advancing our longer-term strategic priorities.”

Second Quarter 2026 Financial Results

Total worldwide revenue in the second quarter of 2026 was $22.8 million, a 5% decrease from $23.9 million in the second quarter of 2025 and a decrease of 6% on a constant currency basis. U.S. revenue was $14.2 million, a 4% decrease from the second quarter of 2025. International revenue was $8.6 million, a 6% decrease compared to the second quarter of 2025, and a 9% decrease on a constant currency basis. The decrease in international revenue was attributable to a lack of sales into China as we awaited the renewal of our registration certificate. Excluding China, international revenue grew 12% year-over-year and 9% on a constant currency basis.

Gross profit in the second quarter of 2026 was $17.7 million, compared to $17.2 million for the second quarter of 2025. Gross margin for the second quarter of 2026 was 78%, compared to 72% for the same period in 2025.

Operating expenses in the second quarter of 2026 were $26.8 million, compared to $32.0 million for the second quarter of 2025, representing a decrease of 16%.

Net loss in the second quarter of 2026 was $10.1 million, or $0.24 per share, compared to a net loss of $15.2 million, or $0.38 per share, for the same period in 2025.

Adjusted EBITDA loss in the second quarter of 2026 was $5.1 million, a reduction of 39% as compared to adjusted EBITDA loss of $8.4 million for the same period in 2025.

Cash and cash equivalents totaled $55.8 million as of June 30, 2026.

2026 Financial Outlook

Pulmonx continues to expect revenue for the full year 2026 to be in the range of $90 million to $92 million.

The Company now expects gross margin for the full year 2026 to be approximately 76%.

Pulmonx now expects total operating expenses for the full year 2026 to fall within the range of $109 million to $111 million, inclusive of approximately $15 million of non-cash stock-based compensation.

The Company continues to expect cash, cash equivalents, and marketable securities to decrease by approximately $23 million for the full year 2026 assuming no additional drawdowns under the Company’s credit facility.

Webcast and Conference Call Details

Pulmonx will host a conference call today, July 29, 2026, at 1:30 p.m. PT / 4:30 p.m. ET to discuss its second quarter financial results. A live webcast of the conference call will be available on the Investor Relations section of the Company’s website at https://investors.pulmonx.com/. The webcast will be archived on the website following the completion of the call.

Use of Non-GAAP Financial Measures

To supplement Pulmonx’s condensed consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP, Pulmonx provides certain non-GAAP financial measures in this release as supplemental financial metrics. Non-GAAP financial measures reflect an additional way of viewing aspects of the Company’s operations that, when viewed with GAAP results, may provide a more complete understanding of factors and trends affecting Pulmonx’s business.

Constant currency calculations show reported current period revenues as if the foreign exchange rates remain the same as those in effect in the comparable prior year period. Pulmonx uses results on a constant currency basis as one measure to evaluate its performance. Pulmonx calculates constant currency by calculating current-year results using foreign currency exchange rates from the applicable comparable period in the prior year. Pulmonx generally refers to such amounts calculated on a constant currency basis as excluding the impact of foreign exchange or being on a constant currency basis. Pulmonx believes the presentation of results on a constant currency basis in addition to reported results helps improve investors’ ability to understand its operating results and evaluate its performance in comparison to prior periods. Pulmonx generally uses constant currency to facilitate management’s financial and operational decision-making, including evaluation of Pulmonx’s historical operating results.

The Company defines Adjusted EBITDA as earnings before interest income or expense, taxes, depreciation and amortization and stock-based compensation and may also exclude certain non-recurring, irregular or one-time items not reflective of our ongoing core business operations, such as impairment charges. Management believes in order to properly understand short-term and long-term financial trends, investors may wish to consider the impact of these excluded items in addition to GAAP measures. Further, management uses adjusted EBITDA for strategic and annual operating planning. We believe these non-GAAP financial measures are useful as a supplement in evaluating our ongoing operational performance and enhancing an overall understanding of our past financial performance.

Reconciliation of these non-GAAP financial measures to the most comparable GAAP measures is set forth in the tables below.

The non-GAAP financial measures used by Pulmonx should be considered supplemental to, and not a substitute for, financial information prepared in accordance with GAAP. Because non-GAAP financial measures exclude the effect of items that increase or decrease the Company’s reported results of operations, management strongly encourages investors to review, when they become available, the Company’s consolidated financial statements and publicly filed reports in their entirety. The Company’s definition of non-GAAP measures may differ from similarly titled measures used by others.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are based on management’s current assumptions and expectations of future events and trends, which affect or may affect our strategy, operations or financial performance, and actual results may differ materially from those expressed or implied in such statements due to numerous risks and uncertainties. These forward-looking statements include, but are not limited to, statements regarding our ability to drive improvements in revenue growth, execute against our strategic priorities, and deliver meaningful operating leverage, our possible or assumed future results of operations, including long-term outlook, descriptions of our revenues, total operating expenses, gross margin, balances of cash, cash equivalents, and marketable securities, profitability, guidance for full year 2026, and overall business strategy. Forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified. Factors that could cause actual results to differ materially from those contemplated in this press release can be found in the Risk Factors section of Pulmonx’s public filings with the Securities and Exchange Commission (“SEC”), including the Quarterly Report on Form 10-Q filed with the SEC on May 4, 2026, available at www.sec.gov. Because forward-looking statements are inherently subject to risks and uncertainties, you should not rely on these forward-looking statements as predictions of future events. All statements other than statements of historical fact are forward-looking statements. Except to the extent required by law, we undertake no obligation to update or review any estimate, projection, or forward-looking statement. Actual results may differ from those set forth in this press release due to the risks and uncertainties inherent in our business.

About Pulmonx Corporation

Pulmonx Corporation (Nasdaq: LUNG) is a global leader in minimally invasive treatments for chronic obstructive pulmonary disease (COPD). Pulmonx’s Zephyr® Endobronchial Valve, Chartis® Pulmonary Assessment System, LungTraX® Platform, and StratX® Lung Analysis Reports are designed to assess and treat patients with severe emphysema/COPD who despite medical management are still profoundly symptomatic. Pulmonx received U.S. Food and Drug Administration (FDA) Premarket Approval (PMA) to commercialize the Zephyr® Endobronchial Valve following its designation as a “breakthrough device.” The Zephyr Valve is

commercially available in more than 25 countries, is included in global treatment guidelines and is widely considered a standard of care treatment option for improving breathing, activity and quality of life in patients with severe emphysema. For more information on the Zephyr Valves and the company, please visit www.Pulmonx.com

Pulmonx®, AeriSeal®, Chartis®, LungTraX®, StratX®, and Zephyr® are registered trademarks of Pulmonx Corporation.

Investor Contact

Brian Johnston or Webb Campbell

Gilmartin Group

investors@pulmonx.com

Pulmonx Corporation

Consolidated Statements of Operations

(in thousands, except share and per share data)

(Unaudited)

Three Months Ended June 30,

Six Months Ended June 30,

2026

2025

2026

2025

Revenue

$

22,756

$

23,859

$

43,342

$

46,397

Cost of goods sold

5,014

6,655

9,556

12,851

Gross profit

17,742

17,204

33,786

33,546

Operating expenses

Research and development

5,034

5,306

9,933

10,062

Selling, general and administrative

21,765

26,702

45,866

52,851

Total operating expenses

26,799

32,008

55,799

62,913

Loss from operations

(9,057)

(14,804)

(22,013)

(29,367)

Interest income

329

723

679

1,587

Interest expense

(1,218)

(799)

(2,194)

(1,580)

Other (expense) income, net

(1)

(116)

76

51

Net loss before tax

(9,947)

(14,996)

(23,452)

(29,309)

Income tax expense

133

177

282

312

Net loss

$

(10,080)

$

(15,173)

$

(23,734)

$

(29,621)

Net loss per share attributable to common stockholders, basic and diluted

$

(0.24)

$

(0.38)

$

(0.56)

$

(0.74)

Weighted-average shares used in computing net loss per share attributable to common stockholders, basic and diluted

42,468,762

40,429,655

42,184,793

40,193,469

Pulmonx Corporation

Condensed Consolidated Balance Sheets

(in thousands)

(Unaudited)

June 30, 2026

December 31, 2025

Assets

Current assets

Cash and cash equivalents

$

55,843

$

69,751

Restricted cash

259

258

Accounts receivable, net

12,247

12,072

Inventory

16,390

15,845

Prepaid expenses and other current assets

3,394

3,758

Total current assets

88,133

101,684

Long-term inventory

3,803

3,604

Property and equipment, net

1,885

2,220

Goodwill

2,333

2,333

Right of use assets

17,267

18,028

Other long-term assets

1,311

1,422

Total assets

$

114,732

$

129,291

Liabilities and Stockholders' Equity

Current liabilities

Accounts payable

$

4,675

$

3,905

Accrued liabilities

14,070

14,556

Income taxes payable

264

263

Deferred revenue

16

18

Short-term debt

103

106

Current lease liabilities

1,277

1,210

Total current liabilities

20,405

20,058

Deferred tax liability

62

69

Long-term lease liabilities

17,403

18,059

Long-term debt

37,428

36,989

Common stock warrant liability

238

Total liabilities

75,536

75,175

Stockholders' equity

Common stock

43

42

Additional paid-in capital

582,396

573,272

Accumulated other comprehensive income

2,049

2,360

Accumulated deficit

(545,292)

(521,558)

Total stockholders' equity

39,196

54,116

Total liabilities and stockholders' equity

$

114,732

$

129,291

Pulmonx Corporation

Reconciliation of Reported Revenue % Change to Constant Currency Revenue % Change

(in thousands, except percentages)

(Unaudited)

Three Months Ended June 30,

2026

2025

% Change

FX Impact %

Constant Currency % Change

United States

$

14,176

$

14,731

(3.8)

%

%

(3.8)

%

International

8,580

9,128

(6.0)

%

3.0

%

(9.0)

%

Total

$

22,756

$

23,859

(4.6)

%

1.2

%

(5.8)

%

Three Months Ended June 30,

2026

2025

% Change

FX Impact %

Constant Currency % Change

International

$

8,580

$

9,128

(6.0)

%

3.0

%

(9.0)

%

less China

(1,484)

(100.0)

%

%

(100.0)

%

International excluding China

$

8,580

$

7,644

12.2

%

3.6

%

8.6

%

Six Months Ended June 30,

2026

2025

% Change

FX Impact %

Constant Currency % Change

United States

$

27,431

$

28,952

(5.3)

%

%

(5.3)

%

International

15,911

17,445

(8.8)

%

6.1

%

(14.9)

%

Total

$

43,342

$

46,397

(6.6)

%

2.3

%

(8.9)

%

Six Months Ended June 30,

2026

2025

% Change

FX Impact %

Constant Currency % Change

International

$

15,911

$

17,445

(8.8)

%

6.1

%

(14.9)

%

less China

(3,779)

(100.0)

%

%

(100.0)

%

International excluding China

$

15,911

$

13,666

16.4

%

7.8

%

8.6

%

Pulmonx Corporation

Reconciliation of Net Loss to Non-GAAP Adjusted EBITDA

(in thousands)

(Unaudited)

Three Months Ended June 30,

Six Months Ended June 30,

2026

2025

2026

2025

GAAP Net loss

$

(10,080)

$

(15,173)

$

(23,734)

$

(29,621)

Depreciation and amortization

222

299

442

577

Stock-based compensation

3,698

6,214

7,834

11,826

Interest (income)/expense, net

889

76

1,515

(7)

Provision for income taxes

133

177

282

312

Adjusted EBITDA

$

(5,138)

$

(8,407)

$

(13,661)

$

(16,913)

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- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

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- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

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- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

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- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

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-Section 425

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