Form 8-K

8-K — Lumentum Holdings Inc.

Accession: 0001628280-26-030530

Filed: 2026-05-05

Period: 2026-05-05

CIK: 0001633978

SIC: 3669 (COMMUNICATIONS EQUIPMENT, NEC)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — lite-20260505.htm (Primary)

EX-99.1 (lite_ex991xq3fy26.htm)

GRAPHIC — LOGO (lumentum_logoa26.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: lite-20260505.htm · Sequence: 1

lite-20260505

0001633978false00016339782026-05-052026-05-05

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): May 5, 2026

Lumentum Holdings Inc.

(Exact name of Registrant as specified in its charter)

Delaware 001-36861 47-3108385

(State or Other Jurisdiction

of Incorporation) (Commission File Number) (IRS Employer

Identification Number)

1001 Ridder Park Drive, San Jose, California 95131

(Address of Principal Executive Offices including Zip code)

(408) 546-5483

(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:

☐ 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, par value of $0.001 per share LITE Nasdaq Global Select Market

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 o

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 May 5, 2026, Lumentum Holdings Inc. (the “Company”) reported results for its fiscal third quarter ended March 28, 2026. The Company also posted a slide presentation entitled “Q3 FY26 Conference Call” dated May 5, 2026 on the “Events and Presentations” investor section of its website (www.lumentum.com). A copy of the Company’s press release is furnished herewith as Exhibit 99.1. Information on the Company’s website is not, and will not be deemed to be, a part of this Current Report on Form 8-K or incorporated into any other filings the Company may make with the Securities and Exchange Commission.

The information in this Current Report on Form 8-K, including Exhibit 99.1, is intended to be furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as 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 entitled “Lumentum Announces Third Quarter of Fiscal Year 2026 Financial Results” dated May 5, 2026

104 Cover Page Interactive Data File (formatted as Inline XBRL)

Signature

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

LUMENTUM HOLDINGS INC.

By: /s/ Wajid Ali

Name:

Wajid Ali

Title: Chief Financial Officer

May 5, 2026

EX-99.1

Filename: lite_ex991xq3fy26.htm · Sequence: 2

Document

NEWS RELEASE

LUMENTUM ANNOUNCES THIRD QUARTER OF FISCAL YEAR 2026 FINANCIAL RESULTS

•Net revenue of $808.4 million

•GAAP gross margin of 44.2%; Non-GAAP gross margin of 47.9%

•GAAP operating margin of 21.6%; Non-GAAP operating margin of 32.2%

•GAAP diluted net income per share of $1.50; Non-GAAP diluted net income per share of $2.37

San Jose, Calif., May 5, 2026 – Lumentum Holdings Inc. (“Lumentum” or the “Company”) today reported results for its fiscal third quarter ended March 28, 2026.

“Lumentum delivered an exceptional third quarter, with revenue growing 90% year over year to a record $808 million. While our top line growth continues to garner headlines, the more impressive part of our recent performance has been our margin expansion. In fiscal Q3, gross margin improved by 540 basis points on quarter and operating margin by 700 basis points,” said President and CEO Michael Hurlston.

“Margin improvement has been driven by many factors including operational rigor, pricing discipline, and product mix. This quarter, mix was aided by strength in laser chips, but also by a less-heralded part of our portfolio, ‘scale-across’ components, which include our pump lasers and narrow linewidth laser assemblies. As our key growth drivers of co-packaged optics and optical circuit switches begin to kick in, we would expect further increases in earnings power.”

Fiscal Third Quarter Highlights:

Net revenue for the third quarter of fiscal year 2026 was $808.4 million, with GAAP net income of $144.2 million, or $1.50 per diluted share. Net revenue for the second quarter of fiscal year 2026 was 665.5 million, with GAAP net income of $78.2 million, or $0.89 per diluted share. Net revenue for the third quarter of fiscal year 2025 was 425.2 million, with GAAP net loss of $44.1 million, or $0.64 per diluted share.

Non-GAAP net income for the third quarter of fiscal year 2026 was $225.7 million, or $2.37 per diluted share. Non-GAAP net income for the second quarter of fiscal year 2026 was $143.9 million, or $1.67 per diluted share. Non-GAAP net income for the third quarter of fiscal year 2025 was $40.9 million, or $0.57 per diluted share.

The Company held $3,172.3 million in total cash, cash equivalents, and short-term investments at the end of the third quarter of fiscal year 2026, up $2,017.0 million from the end of the second quarter of fiscal year 2026 primarily due to the proceeds from the issuance of Series A Convertible Preferred Stock in March 2026.

Financial Overview – Fiscal Third Quarter Ended March 28, 2026

GAAP Results ($ in millions)

Q3 Q2 Q3 Change

FY 2026 FY 2026 FY 2025 Q/Q Y/Y

Net revenue $ 808.4 $ 665.5 $ 425.2 21.5% 90.1%

GAAP gross margin 44.2 % 36.1 % 28.8 % 810 bps 1,540 bps

GAAP operating margin (loss) 21.6 % 9.7 % (8.9) % 1,190 bps 3,050 bps

Non-GAAP Results ($ in millions)

Q3 Q2 Q3 Change

FY 2026 FY 2026 FY 2025 Q/Q Y/Y

Net revenue $ 808.4 $ 665.5 $ 425.2 21.5% 90.1%

Non-GAAP gross margin 47.9 % 42.5 % 35.2 % 540 bps 1,270 bps

Non-GAAP operating margin 32.2 % 25.2 % 10.8 % 700 bps 2,140 bps

Net Revenue by Product Type ($ in millions)

Q3 % of Q2 Q3 Change

FY 2026 Net Revenue FY 2026 FY 2025 Q/Q Y/Y

Components $ 533.3 66.0 % $ 443.7 $ 300.8 20.2% 77.3%

Systems 275.1 34.0 % 221.8 124.4 24.0% 121.1%

Total $ 808.4 100.0 % $ 665.5 $ 425.2 21.5% 90.1%

The tables above provide comparisons of quarterly results to prior periods, including sequential quarterly and year-over-year changes. A reconciliation between GAAP and non-GAAP measures is contained in this release under the section titled “Use of Non-GAAP Financial Measures.”

Business Outlook

Lumentum expects the following for the fourth quarter of fiscal year 2026:

•Net revenue in the range of $960 million to $1.01 billion

•Non-GAAP operating margin of 35.0% to 36.0%

•Non-GAAP diluted earnings per share of $2.85 to $3.05

We have not provided reconciliations from GAAP to non-GAAP financial measures or the equivalent GAAP measure for non-GAAP financial measures in our outlook, as they cannot be provided without unreasonable effort. A large portion of non-GAAP adjustments, such as stock-based compensation and related payroll expenses, acquisition related costs, net, integration related costs, restructuring and related charges (reversals), non-GAAP income tax reconciling adjustments, and other non-GAAP adjustments are by their nature highly volatile and we have low visibility as to the range that may be incurred in the future.

Related Announcement and Conference Call

Lumentum will host a conference call today, May 5, 2026, at 2:00 pm PT / 5:00 pm ET to discuss its third quarter of fiscal year 2026 results. A live webcast of the call and replay will be available in the Investors section of the Lumentum website at http://investor.lumentum.com. The earnings press release will be posted at http://investor.lumentum.com under the “News Releases” section. Supporting materials outlining the Company’s latest financial results will be posted on http://investor.lumentum.com under the “Events” section concurrently with this earnings press release. Lumentum has used, and intends to continue to use, its Investor Relations website as means of disclosing material nonpublic information and for complying with its disclosure obligations under Regulation FD. This press release is being furnished as an exhibit to a Current Report on Form 8-K filed with the Securities and Exchange Commission and will be available at http://www.sec.gov/.

About Lumentum

Lumentum (NASDAQ: LITE) is a global leader in optical and photonic technologies that power the networks and infrastructure behind AI, cloud computing, and next-generation communications. Built on decades of photonics innovation, Lumentum delivers high-performance lasers, modules, and optical subsystems that enable scalable, energy-efficient data center connectivity, advanced telecom networks, industrial manufacturing, and sensing applications. Headquartered in San Jose, California, the company operates R&D, manufacturing, and sales facilities worldwide. Learn more at www.lumentum.com.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These include statements regarding: our belief and expectations with respect to our markets, including the AI and cloud datacenter market and the broader networking market, demand for our products, revenue growth, growth drivers, revenue growth opportunities with respect to OCS and CPO, margin expansion, earnings power, and our guidance with respect to future net revenue, non-GAAP diluted earnings per share, and non-GAAP operating margin, and related assumptions. These forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from those projected. Among the factors that could cause actual results to differ from those contemplated are: (a) uncertainty and volatility in the global markets, including uncertainty and volatility in the macroeconomic environment, volatility and uncertainty with respect to economic growth, inflationary pressures, changes in the political or economic environment, such as geopolitical conflicts, war, international trade regulation and restrictions (including tariffs, duties and export controls to be implemented by the U.S. and other countries), including for certain rare earth minerals, and the effect of such market disruptions on demand for our products, technology spending by our customers, our costs and expenses and our ability to obtain components for our products; (b) quarter-over-quarter product mix fluctuations, which can materially impact profitability measures due to the broad gross margin ranges across our portfolio; (c) decline of average selling prices across our businesses or increase in costs, either of which will also decrease our margins; (d) effects of seasonality; (e) our ability to increase our manufacturing capacity and our ability and the ability of our suppliers and contract manufacturers to meet production, quality, and delivery requirements for our forecasted demand; (f) changes in customer demand, including due to changes in inventory practices and end-customer demand, and potential order cancellations, reductions or delays and their effects; (g) our ability to attract and retain new customers, particularly in the cloud photonics and imaging and sensing markets; (h) the risk that our markets will not grow or develop as expected or that our strategies and ability to compete in those markets are not successful, (i) the risk that Lumentum’s financing or operating strategies will not be successful; (j) risks related to our restructuring initiatives and changes to our operations; (k) failure to successfully integrate acquisitions into our business or that we will not achieve the expected benefits; (l) risks related to servicing our current and future debt and compliance with the covenants under our revolving credit facility. A detailed discussion of these and other risks and uncertainties that could cause actual results and events to differ materially from such forward-looking statements is included in the Company’s Quarterly Report on Form 10-Q for the fiscal quarter ended December 27, 2025 filed with the Securities and Exchange Commission (the “SEC) and the Company’s other filings with the SEC, including the Quarterly Report on Form 10-Q for the fiscal quarter ended March 28, 2026 to be filed with the SEC, available at www.sec.gov, under the "Risk Factors" section and elsewhere. The forward-looking statements contained in this press release are made as of the date hereof and the Company assumes no obligation to update such statements, except as required by applicable law.

Contact Information

Investors: Kathy Ta, +1.408.750.3853; investor.relations@lumentum.com

Media: Victoria McDonald, +408.404.0636; media@lumentum.com

Category: Financial

The following financial tables are presented in accordance with GAAP, unless otherwise specified.

LUMENTUM HOLDINGS INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in millions, except per share data)

(unaudited)

Three Months Ended Nine Months Ended

March 28, 2026 March 29, 2025 March 28, 2026 March 29, 2025

Net revenue $ 808.4 $ 425.2 $ 2,007.7 $ 1,164.3

Cost of sales 432.1 283.7 1,170.7 801.4

Amortization of acquired developed intangibles 19.3 19.0 58.4 62.9

Gross profit 357.0 122.5 778.6 300.0

Operating expenses:

Research and development 90.6 75.9 252.1 224.4

Selling, general and administrative 90.8 112.0 272.0 264.6

Restructuring and related charges 1.1 7.2 9.0 17.6

Gain on sale of facility — (34.9) — (34.9)

Total operating expenses 182.5 160.2 533.1 471.7

Income (loss) from operations 174.5 (37.7) 245.5 (171.7)

Escrow settlement — — 27.5 —

Interest expense (6.2) (5.7) (18.2) (16.8)

Other income, net 15.5 4.2 30.7 27.8

Total other income (expense), net 9.3 (1.5) 40.0 11.0

Income (loss) before income taxes 183.8 (39.2) 285.5 (160.7)

Income tax provision 39.6 4.9 58.9 26.7

Net income (loss) 144.2 (44.1) 226.6 (187.4)

Income allocated to participating securities (1.7) — (0.9) —

Net income (loss) available to common shareholders $ 142.5 $ (44.1) $ 225.7 $ (187.4)

Net income (loss) per common share:

Basic $ 1.99 $ (0.64) $ 3.18 $ (2.72)

Diluted $ 1.50 $ (0.64) $ 2.59 $ (2.72)

Shares used to compute net income (loss) per common share:

Basic 71.5 69.3 71.0 68.8

Diluted 96.2 69.3 87.4 68.8

LUMENTUM HOLDINGS INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(in millions, except per share data)

(unaudited)

March 28, 2026 June 28, 2025

ASSETS

Current assets:

Cash and cash equivalents $ 2,617.8 $ 520.7

Short-term investments 554.5 356.4

Accounts receivable, net 441.6 250.0

Inventories 632.8 470.1

Prepayments and other current assets 149.0 120.1

Total current assets 4,395.7 1,717.3

Property, plant and equipment, net 964.3 726.4

Operating lease right-of-use assets, net 27.0 27.9

Goodwill 1,066.3 1,060.9

Other intangible assets, net 362.9 465.1

Deferred tax asset 197.9 210.3

Other non-current assets 13.8 10.8

Total assets $ 7,027.9 $ 4,218.7

LIABILITIES AND STOCKHOLDERS’ EQUITY

Current liabilities:

Accounts payable $ 392.7 $ 225.2

Accrued payroll and related expenses 109.7 57.9

Accrued expenses 48.9 34.6

Current portion of long-term debt 3,238.6 10.6

Operating lease liabilities, current 12.5 11.4

Other current liabilities 62.9 53.1

Total current liabilities 3,865.3 392.8

Long-term debt 43.2 2,562.6

Operating lease liabilities, non-current 19.4 23.6

Deferred tax liability 5.4 7.2

Other non-current liabilities 121.2 97.8

Total liabilities 4,054.5 3,084.0

Commitments and contingencies

Stockholders’ equity:

Preferred stock, $0.001 par value, 10 authorized shares, 2.9 shares and zero shares issued and outstanding as of March 28, 2026 and June 28, 2025, respectively

— —

Common stock, $0.001 par value, 990 authorized shares, 71.7 shares and 69.8 shares issued and outstanding as of March 28, 2026 and June 28, 2025, respectively

0.1 0.1

Additional paid-in capital 3,600.9 1,986.8

Accumulated deficit (634.6) (861.2)

Accumulated other comprehensive income 7.0 9.0

Total stockholders’ equity 2,973.4 1,134.7

Total liabilities and stockholders’ equity $ 7,027.9 $ 4,218.7

Use of Non-GAAP Financial Measures

In this press release, Lumentum provides investors with certain non-GAAP financial measures: gross profit, gross margin, research and development expense, selling, general and administrative expense, operating margin, income (loss) from operations, other income (expense), net, income before income taxes, provision for income taxes, net income (loss), shares used in per share calculation, and net income (loss) per share on a non-GAAP basis, as well as the non-GAAP measures of EBITDA and Adjusted EBITDA. Lumentum believes this non-GAAP financial information provides additional insight into the Company’s on-going business operations and results, and has therefore chosen to provide this information to investors for a more consistent basis of comparison and to help them evaluate the results of the Company’s on-going operations and enable more meaningful period to period comparisons. In addition, the Company believes that providing certain of these measures allows investors to better understand the Company’s operating performance and, importantly, to evaluate the methodology and information used by management to monitor, manage, evaluate and measure the Company’s business and results of operations. However, investors are cautioned that there are material limitations associated with the use of non-GAAP financial measures as an analytical tool. In particular, many of the adjustments to our GAAP financial measures reflect the exclusion of items that are recurring and will be reflected in our financial results for the foreseeable future. Moreover, the non-GAAP financial measures we present may be different from non-GAAP financial measures used by other companies or may not be comparable to similarly titled measurements reported by other companies, limiting their usefulness for comparison purposes. We do not consider non-GAAP financial measures to be a substitute for, or superior to, the information provided by GAAP financial measures, and the non-GAAP financial measures used in this press release should not be considered in isolation from measures of financial performance prepared in accordance with GAAP.

Our non-GAAP measures used in this press release exclude (i) stock-based compensation and related payroll taxes, (ii) acquisition related costs, net (iii) integration related costs, (iv) amortization of acquired intangibles, (v) restructuring and related charges (reversals), (vi) intangible assets write-off, (vii) gain on sale of facility, (viii) escrow settlement, (ix) acquisition-related warranty provision, (x) inducement expense, (xi) foreign exchange (gains) losses, net, (xii) non-cash interest expense, (xiii) non-GAAP income tax reconciling adjustments, and (xiv) other charges or income related to non-recurring activities.

We utilize a long-term projected non-GAAP tax rate to compute our non-GAAP income tax provision. The long-term projected non-GAAP tax rate is based on a multi-year projection of our estimated annual GAAP income tax forecast, adjusted to account for the tax effect of non-GAAP pretax adjustments as well as the effects of significant non-recurring and period specific tax items. Our non-GAAP tax provision for fiscal year 2026 is 16.5%. The difference between our GAAP income tax provision and our non-GAAP income tax provision is presented as non-GAAP income tax reconciling adjustments.

A quantitative reconciliation between GAAP and non-GAAP financial data is included in the supplemental financial table attached to this press release.

LUMENTUM HOLDINGS INC.

RECONCILIATION OF GAAP MEASURES TO NON-GAAP MEASURES

(in millions, except per share data)

(unaudited)

Three Months Ended Nine Months Ended

March 28, 2026 December 27, 2025 March 29, 2025 March 28, 2026 March 29, 2025

Gross profit on GAAP basis $ 357.0 $ 240.1 $ 122.5 $ 778.6 $ 300.0

Stock-based compensation and related payroll taxes (1)

10.5 13.3 9.2 33.5 28.1

Amortization of acquired intangibles 19.3 19.6 19.0 58.4 62.9

Integration related costs 0.2 — — 0.2 2.3

Acquisition-related warranty provision (4)

— 9.8 — 9.8 —

Other income, net (0.1) (0.2) (1.2) (0.7) (3.4)

Gross profit on non-GAAP basis $ 386.9 $ 282.6 $ 149.5 $ 879.8 $ 389.9

Gross margin on non-GAAP basis 47.9 % 42.5 % 35.2 % 43.8 % 33.5 %

Research and development on GAAP basis $ 90.6 $ 80.1 $ 75.9 $ 252.1 $ 224.4

Stock-based compensation and related payroll taxes (1)

(11.5) (9.8) (11.2) (33.3) (31.9)

Amortization of acquired intangibles (0.5) (0.4) (0.4) (1.3) (1.2)

Integration related costs (0.2) — (0.3) (0.2) (0.3)

Intangible assets write-off — — (0.7) — (2.6)

Research and development on non-GAAP basis $ 78.4 $ 69.9 $ 63.3 $ 217.3 $ 188.4

Selling, general and administrative on GAAP basis $ 90.8 $ 96.1 $ 112.0 $ 272.0 $ 264.6

Stock-based compensation and related payroll taxes (1)

(24.8) (24.8) (42.4) (74.4) (77.2)

Amortization of acquired intangibles (14.0) (14.0) (15.0) (42.5) (51.0)

Acquisition related costs (2)

(0.4) (0.4) (0.5) (2.1) (0.5)

Integration related costs (1.0) (1.3) (1.1) (1.5) (5.3)

Other charges, net (6)

(2.8) (10.6) (12.9) (17.2) (16.9)

Selling, general and administrative on non-GAAP basis $ 47.8 $ 45.0 $ 40.1 $ 134.3 $ 113.7

Income (loss) from operations on GAAP basis $ 174.5 $ 64.3 $ (37.7) $ 245.5 $ (171.7)

Stock-based compensation and related payroll taxes (1)

46.8 47.9 62.8 141.2 137.2

Amortization of acquired intangibles 33.8 34.0 34.4 102.2 115.1

Acquisition related costs (2)

0.4 0.4 0.5 2.1 0.5

Integration related costs 1.4 1.3 1.4 1.9 7.9

Restructuring and related charges (reversals) (3)

1.1 (0.4) 7.2 9.0 17.6

Intangible assets write-off — — 0.7 — 2.6

Acquisition-related warranty provision (4)

— 9.8 — 9.8 —

Gain on sale of facility (4)

— — (34.9) — (34.9)

Other charges, net (6)

2.7 10.4 11.7 16.5 13.5

Income from operations on non-GAAP basis $ 260.7 $ 167.7 $ 46.1 $ 528.2 $ 87.8

Operating margin on non-GAAP basis 32.2 % 25.2 % 10.8 % 26.3 % 7.5 %

Total other income (expense), net on GAAP basis $ 9.3 $ 32.2 $ (1.5) $ 40.0 $ 11.0

Acquisition related income (2)

— (1.8) — (1.8) —

Escrow settlement (4)

— (27.5) — (27.5) —

Inducement expense (5)

— — — 5.9 —

Foreign exchange (gains) losses, net (0.8) 0.6 3.6 (1.7) (1.6)

Non-cash interest expense 1.1 1.1 0.8 3.0 2.3

Total other income, net on non-GAAP basis $ 9.6 $ 4.6 $ 2.9 $ 17.9 $ 11.7

Income (loss) before income taxes on GAAP basis $ 183.8 $ 96.5 $ (39.2) $ 285.5 $ (160.7)

Stock-based compensation and related payroll taxes (1)

46.8 47.9 62.8 141.2 137.2

Acquisition related costs, net (2)

0.4 (1.4) 0.5 0.3 0.5

Integration related costs 1.4 1.3 1.4 1.9 7.9

Amortization of acquired intangibles 33.8 34.0 34.4 102.2 115.1

Restructuring and related charges (reversals) (3)

1.1 (0.4) 7.2 9.0 17.6

Escrow settlement (4)

— (27.5) — (27.5) —

Acquisition-related warranty provision (4)

— 9.8 — 9.8 —

Gain on sale of facility (4)

— — (34.9) — (34.9)

Inducement expense (5)

— — — 5.9 —

Intangible assets write-off — — 0.7 — 2.6

Foreign exchange (gains) losses, net (0.8) 0.6 3.6 (1.7) (1.6)

Non-cash interest expense 1.1 1.1 0.8 3.0 2.3

Other charges, net (6)

2.7 10.4 11.7 16.5 13.5

Income before income taxes on non-GAAP basis $ 270.3 $ 172.3 $ 49.0 $ 546.1 $ 99.5

Income tax provision on GAAP basis $ 39.6 $ 18.3 $ 4.9 $ 58.9 $ 26.7

Non-GAAP income tax reconciling adjustments 5.0 10.1 3.2 31.2 (10.3)

Income tax provision on non-GAAP basis $ 44.6 $ 28.4 $ 8.1 $ 90.1 $ 16.4

Net income (loss) on GAAP basis $ 144.2 $ 78.2 $ (44.1) $ 226.6 $ (187.4)

Stock-based compensation and related payroll taxes (1)

46.8 47.9 62.8 141.2 137.2

Acquisition related costs, net (2)

0.4 (1.4) 0.5 0.3 0.5

Integration related costs 1.4 1.3 1.4 1.9 7.9

Amortization of acquired intangibles 33.8 34.0 34.4 102.2 115.1

Restructuring and related charges (reversals) (3)

1.1 (0.4) 7.2 9.0 17.6

Intangible assets write-off — — 0.7 — 2.6

Gain on sale of facility (4)

— — (34.9) — (34.9)

Escrow settlement (4)

— (27.5) — (27.5) —

Acquisition-related warranty provision (4)

— 9.8 — 9.8 —

Inducement expense (5)

— — — 5.9 —

Foreign exchange (gains) losses, net (0.8) 0.6 3.6 (1.7) (1.6)

Non-cash interest expense 1.1 1.1 0.8 3.0 2.3

Non-GAAP income tax reconciling adjustments (5.0) (10.1) (3.2) (31.2) 10.3

Other charges, net (6)

2.7 10.4 11.7 16.5 13.5

Net income on non-GAAP basis $ 225.7 $ 143.9 $ 40.9 $ 456.0 $ 83.1

Net income per share on non-GAAP basis $ 2.37 $ 1.67 $ 0.57 $ 5.27 $ 1.17

Shares used in per share calculation - diluted on GAAP basis 96.2 87.8 69.3 87.4 68.8

Non-GAAP adjustment (7)

(1.0) (1.7) 2.9 (0.9) 2.1

Shares used in per share calculation - diluted on non-GAAP basis 95.2 86.1 72.2 86.5 70.9

(1) Stock-based compensation and related payroll taxes for the three and nine months ended March 28, 2026 includes $5.2 million and $11.8 million of payroll taxes on stock-based compensation, respectively.

(2) Acquisition related costs, net for the three months ended March 28, 2026 represent $0.4 million of legal expenses and other professional fees incurred related to an acquisition of a business in March 2026 in selling, general and administrative expenses.

Acquisition related costs, net for the nine months ended March 28, 2026 represent legal expenses incurred related to Cloud Light escrow settlement of $1.7 million and $0.4 million of legal expenses and other professional fees incurred related to an acquisition of a business in March 2026 in selling, general and administrative expenses offset by $1.8 million of interest income from the Cloud Light escrow fund in other income, net.

(3) During the three and nine months ended March 28, 2026, we recorded restructuring and related charges of $1.1 million and $9.0 million, respectively, primarily related to a reduction in force during the period in order to enhance operational efficiency and realign our investments toward the most critical initiatives.

(4) During the nine months ended March 28, 2026, we completed the settlement process with the sellers on the escrow agreement for the acquisition of Cloud Light. We believe the completion of this settlement represents a non-recurring activity as it relates directly to an acquisition. The settlement of $27.5 million, recorded in escrow settlement, for the nine months ended March 28, 2026 represents the mutually agreed escrow settlement associated with indemnification obligations and working capital adjustments, including warranty adjustments, under the Cloud Light Merger agreement. Acquisition-related warranty provision relates to $9.8 million of warranty expense associated with Cloud Light’s legacy products is recorded in cost of sales. As the measurement period for U.S. GAAP expired, these amounts were all included in our condensed consolidated results of operations on a GAAP basis as no further adjustments to the purchase consideration of Cloud Light can be made. Therefore, for non-GAAP reporting purposes, we have removed the net benefit of $17.7 million for the nine months ended March 28, 2026.

(5) Inducement expense on the partial repurchase of our 2026 Notes for the nine months ended March 28, 2026 represents the excess of fair value of the total consideration over the fair value of securities issuable pursuant to the original conversion terms.

(6) Other charges, net for the three months ended March 28, 2026 mostly relates to $2.5 million of legal fees primarily related to non-ordinary course legal matters in selling and general and administrative expenses.

Other charges, net for the nine months ended March 28, 2026 mainly includes legal fees of $9.0 million primarily related to non-ordinary course legal matters and an impairment charge of $7.7 million to write-down assets held for sale to fair value less cost to sell in selling, general and administrative expenses.

(7) The adjustment for the three and nine months ended March 28, 2026 represents the impact of the capped call options. Our outstanding capped call options are anti-dilutive as they are specifically designed to mitigate the dilutive impact of the 2032 Notes, such that no dilution will occur until the capped call price is exceeded. Therefore, we included the 1.0 million and 0.9 million shares anti-dilutive impact of the capped call from the calculation of non-GAAP diluted shares in the three and nine months ended March 28, 2026 to provide investors with useful information in evaluating our performance on a per share basis.

We calculate basic earnings (loss) per common share pursuant to the two-class method as a result of the issuance of the Series A Convertible Preferred Stock (the “Preferred Stock”) in March 2026. The Preferred Stock is entitled to receive dividends on an as-converted basis in the same manner as holders of common stock and is therefore considered a participating security. As the Preferred Stock participates on an as-converted basis, earnings are allocated pro rata based on the total number of common shares outstanding and the as-converted shares of Preferred Stock.

Diluted earnings (loss) per common share is calculated using the more dilutive of the two-class method or if-converted method. The Company applies the if-converted method, under which the Preferred Stock is assumed to have been converted into common stock at the date of issuance, and the related shares are included in diluted weighted-average shares outstanding.

LUMENTUM HOLDINGS INC.

RECONCILIATION OF GAAP NET INCOME TO ADJUSTED EBITDA

(in millions, except per share data)

(unaudited)

Three Months Ended Nine Months Ended

March 28, 2026 December 27, 2025 March 29, 2025 March 28, 2026 March 29, 2025

GAAP net income (loss) $ 144.2 $ 78.2 $ (44.1) $ 226.6 $ (187.4)

Other income (expense), net (9.3) (32.2) 1.5 (40.0) (11.0)

Income tax provision 39.6 18.3 4.9 58.9 26.7

Depreciation 32.8 30.6 25.0 91.2 77.9

Amortization of acquired intangibles 33.8 34.0 34.4 102.2 115.1

EBITDA 241.1 128.9 21.7 438.9 21.3

Restructuring and related charges (reversals) 1.1 (0.4) 7.2 9.0 17.6

Stock-based compensation and related payroll taxes 46.8 47.9 62.8 141.2 137.2

Acquisition related costs, net 0.4 0.4 0.5 2.1 0.5

Acquisition-related warranty provision — 9.8 — 9.8 —

Integration related costs 1.4 1.3 1.4 1.9 7.9

Intangible asset write-off — — 0.7 — 2.6

Gain on sale of facility — — (34.9) — (34.9)

Other charges, net 2.7 10.4 11.6 16.5 13.3

Adjusted EBITDA $ 293.5 $ 198.3 $ 71.0 $ 619.4 $ 165.5

GRAPHIC — LOGO

GRAPHIC

Filename: lumentum_logoa26.jpg · Sequence: 6

Binary file (11391 bytes)

Download lumentum_logoa26.jpg

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 8

v3.26.1

COVER PAGE

May 05, 2026

Cover [Abstract]

Document Type

8-K

Document Period End Date

May 05, 2026

Entity Registrant Name

Lumentum Holdings Inc.

Entity Incorporation, State or Country Code

Entity File Number

001-36861

Entity Tax Identification Number

47-3108385

Entity Address, Address Line One

1001 Ridder Park Drive

Entity Address, City or Town

San Jose

Entity Address, State or Province

Entity Address, Postal Zip Code

95131

City Area Code

408

Local Phone Number

546-5483

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Entity Emerging Growth Company

false

Title of each class

Common Stock, par value of $0.001 per share

Trading Symbol(s)

LITE

Name of each exchange on which registered

NASDAQ

Entity Central Index Key

0001633978

Amendment Flag

false

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

Period Type:

duration

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

Period Type:

duration

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

Period Type:

duration

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

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

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

Period Type:

duration

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

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

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

Period Type:

duration

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

Period Type:

duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

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

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

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

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

Period Type:

duration

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

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

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

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

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Title of a 12(b) registered security.

+ References

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

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

Period Type:

duration

- 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

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

Period Type:

duration

- 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

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

Period Type:

duration

- 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

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration