← Lumentum Holdings Inc. (LITE)

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# Lumentum Holdings Inc. (LITE) — Business, Risks and Management's Discussion

Fiscal year ends on the Saturday nearest June 30. Fiscal year 2026 ended June 27, 2026;
fiscal year 2025 ended June 28, 2025.

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## Business

*From the Annual Report on Form 10-K for the fiscal year ended June 27, 2026 (SEC accession
0001628280-26-057358).*

Lumentum designs and manufactures optical and photonic products — semiconductor laser chips,
laser sub-assemblies, optical modules and transceivers, optical switching and wavelength
management subsystems, and industrial lasers — and sells them to cloud and network service
providers, AI infrastructure providers, and network equipment manufacturers. Its products
carry data over fiber inside and between data centers and across access, metro, long-haul and
submarine telecom networks; a smaller part of the portfolio serves industrial material
processing and 3D sensing in consumer electronics. Net revenue in fiscal 2026 was $3,014.0
million, up 83.2% from $1,645.0 million in fiscal 2025, and the growth came overwhelmingly
from AI and cloud data-center demand.

Beginning in the first quarter of fiscal 2026 the company reorganized and now reports as **one
operating segment**, managed as a single integrated enterprise with the Chief Executive Officer
as chief operating decision maker. Prior to fiscal 2026 it reported two segments, Cloud &
Networking and Industrial Tech. Prior-period segment information was restated; consolidated
results were unaffected.

Revenue is disaggregated two ways.

**By product type.** *Components* are building blocks a customer integrates into its own
system — semiconductor laser chips, laser sub-assemblies, line subsystems, wavelength
management systems. *Systems* are complete stand-alone products — optical modules, optical
circuit switches, and industrial lasers including short-pulse solid-state and kilowatt-class
fiber lasers.

| Net revenue ($M) | FY2026 | FY2025 | FY2024 |
|---|---|---|---|
| Components | 2,005.6 | 1,116.3 | 822.1 |
| Systems | 1,008.4 | 528.7 | 537.1 |
| **Total** | **3,014.0** | **1,645.0** | **1,359.2** |

Components were 66.5% of fiscal 2026 revenue, Systems 33.5%.

**By region**, assigned to where product is first shipped (often a contract manufacturer, not
the customer's headquarters). Fiscal 2026: Americas $1,084.8 million (35.9%), of which United
States $627.9 million and Mexico $443.7 million; Asia-Pacific $1,752.2 million (58.2%), of
which Thailand $626.6 million, Hong Kong $519.3 million and China $284.8 million; EMEA $177.0
million (5.9%). Customers outside the United States, by shipping location, were 79.2% of
revenue in fiscal 2026 (81.0% in fiscal 2025, 73.8% in fiscal 2024). Revenue is primarily
denominated in U.S. dollars.

**Customer concentration is high and rising.** Two end customers each exceeded 10% of revenue
in fiscal 2026: Customer A at 26.6% (15.4% in fiscal 2025) and Customer B at 15.0% (16.0%).

### Strategic partnership with and investment by NVIDIA

On March 2, 2026 Lumentum completed the sale of 2,876,415 shares of Series A Convertible
Preferred Stock to NVIDIA Corporation at $695.31 per share, for **$2.0 billion in cash**. The
preferred converts one-for-one into common stock at the holder's option (subject to
Hart-Scott-Rodino clearance) or automatically ahead of a qualified sale; it participates in
dividends and votes with the common on an as-converted basis except on the election of
directors, and carries no preemptive or redemption rights and no liquidation preference.

The joint press release accompanying that transaction (Current Report on Form 8-K, SEC
accession 0001193125-26-085412, Exhibit 99.1) describes multi-year, **non-exclusive** strategic
agreements that include an NVIDIA multi-billion-dollar purchase commitment and future capacity
access rights for advanced laser components, with NVIDIA's $2 billion supporting R&D, capacity
and the build-out of U.S.-based manufacturing in a new fab.

### Footprint, history and capacity

Headquarters are in San Jose, California. The company owns and leases property in the United
States and eleven other countries — roughly 3,100,000 square feet in total, of which about
2,136,000 square feet is owned, including 1,173,000 square feet of manufacturing in Thailand,
472,000 square feet of manufacturing and R&D in Japan, 183,000 square feet of manufacturing in
the United Kingdom, 148,000 square feet in Greensboro, North Carolina, 124,000 square feet on
the San Jose campus and 36,000 square feet in Slovenia. As of June 27, 2026 it employed
approximately 13,757 full-time people, of whom about 11,916 were in manufacturing, 1,085 in
R&D and 756 in SG&A; roughly 1% are covered by collective bargaining agreements in Slovenia
and China.

Lumentum was incorporated in Delaware on February 10, 2015 as a subsidiary of JDS Uniphase and
spun off in August 2015. Its portfolio was assembled largely by acquisition: Oclaro (2018),
NeoPhotonics and IPG Photonics' telecom transmission product lines (2022), and Cloud Light
Technology Limited (2023). During fiscal 2026 it bought a manufacturing facility in
Greensboro, North Carolina (March 17, 2026, $38.0 million cash — see MD&A below) and sold two
commercial buildings in San Jose.

Management's stated industry view: demand from AI and cloud customers has been **outpacing
supply**, forcing supply-allocation decisions, and the company is adding capacity both
internally and with contract manufacturers. Architecturally it frames the opportunity as
scale-out (200G-per-lane components across the data-center network), scale-up (photonics and
optical switches interconnecting GPUs and accelerators inside the compute fabric) and
scale-across (data-center interconnect between sites).

---

## Risk factors

*Condensed from Item 1A of the fiscal 2026 Form 10-K (SEC accession 0001628280-26-057358).*

**Customer and supplier concentration.** A small number of customers generate a large share of
sales, and most customers have no contractual purchase commitment. Raw materials, packages and
components come from a limited number of often small, specialized suppliers, some of them sole
sources, with no long-term supply agreements in many cases; the company has advanced payments
with some suppliers but no guaranteed supply. Loss of a critical source, defective or
contaminated material, or an industry-wide demand spike could halt production.

**Trade restrictions, tariffs and export controls.** Throughout 2025 and 2026 the U.S. imposed
tariffs affecting nearly all countries, ranging from 15% to stacked rates above 100% in some
cases; many initially proposed measures were invalidated or expired and the landscape keeps
shifting. Open U.S. investigations that could add tariffs include Section 232 proceedings on
semiconductors and semiconductor manufacturing equipment (initiated April 14, 2025), on
processed critical minerals and derivatives, and on robotics and industrial machinery, plus
Section 301 proceedings on excess manufacturing capacity abroad. Outside the U.S., China's
export controls on rare earth metals and other critical minerals have already affected
Lumentum's access to materials, and China's restrictions on exports to Japan affected its
global substrate supply chain. Tariffs on imported goods raise cost of sales and compress gross
margin where they cannot be passed through.

**Huawei.** Following the August 2020 BIS rules, and after an internal review in 2023
concluded its products may be subject to the Export Administration Regulations, Lumentum
stopped all shipments to Huawei — historically its largest networking customer in China — in
early calendar 2024. Business with Huawei is now completely restricted, including future
product development. The company filed voluntary self-disclosures with BIS, and in August 2024
received an administrative subpoena from BIS and a related subpoena from the Department of
Justice regarding its Huawei business; both reviews are ongoing and it is cooperating.
Penalties, loss of export privileges or debarment are possible outcomes. Huawei has sourced
substitutes elsewhere, so the demand may never return even if restrictions ease.

**Margin and mix volatility.** Gross and operating margins vary with demand, product mix,
price competition, currency, inflation, component and logistics costs, manufacturing or
component availability, underutilized capacity from misforecast demand, and warranty issues.
Management explicitly expects variability and possible downward pressure, noting that its
markets carry high customer concentration, are price-sensitive and are undergoing product,
architectural and business-model transitions driven by AI deployment.

**Capacity, manufacturing and backlog.** Results depend on scaling internal capacity and on
contract manufacturers and suppliers meeting production, quality and delivery requirements;
reliance on third parties means reduced control over schedules, dependence on their quality
assurance, and exposure to cyber incidents at their sites. Backlog is not a reliable indicator
of future revenue, and customer ordering behavior has been shifting with tariffs and
macroeconomic conditions.

**Macroeconomic and geopolitical exposure.** The filing names inflation, credit and banking
instability, trade wars, high interest rates, and armed conflict and geopolitical tension —
including the Russia-Ukraine war, conflicts in the Middle East including the U.S.-Iran war,
political and territorial conflicts in the Western Hemisphere, the Cambodia-Thailand conflict,
and China-Taiwan relations — as conditions that have harmed and could again harm demand,
pricing and inventory. Lumentum's largest manufacturing footprint is in Thailand.

**Technology and competition.** The markets require continuous innovation while controlling
cost; optical communications products have commoditized over time and the end markets have
consolidated. Failure to anticipate technological shifts, or intense price competition, could
erode revenue, margin and share.

**Indebtedness and dilution.** Servicing current and future debt may limit operating
flexibility, divert cash flow, increase vulnerability to downturns and restrict the ability to
borrow. Transactions relating to the convertible notes may dilute existing stockholders or
depress the stock price; the 2032 Capped Call Options may themselves affect the value of the
common stock and carry counterparty risk.

**Other named risks.** Acquisition sourcing and integration; restructuring disruption;
international tax structure and changes in tax law; foreign-currency fluctuation; future
capital needs; cybersecurity incidents and product defects or vulnerabilities; business
continuity at global facilities; period-to-period unpredictability of results; protection of
intellectual property and IP litigation; reliance on licensed third-party technology;
maintaining effective disclosure controls and internal control over financial reporting; owning
real property; retaining key personnel and the effect of immigration policy; obtaining export
authorizations; ESG and climate regulation and stakeholder expectations; stock-price
volatility; no expected dividends; and Delaware-law and charter provisions plus an exclusive-forum
bylaw that could deter a takeover or stockholder suit.

Legal and regulatory status as of June 27, 2026: ordinary-course claims only, with the accrual
for expected litigation settlements not material; the BIS and DOJ matters above outstanding and
of unpredictable outcome; and a $21.4 million unrecognized tax position reclassified to
non-current liabilities as an indemnification liability tied to the Shenzhen asset sale.

---

## Management's discussion and analysis — fiscal year 2026

*From Item 7 of the fiscal 2026 Form 10-K (SEC accession 0001628280-26-057358).*

### Results of operations

| ($ millions) | FY2026 | FY2025 | FY2024 |
|---|---|---|---|
| Net revenue | 3,014.0 | 1,645.0 | 1,359.2 |
| Gross profit | 1,255.9 | 459.9 | 251.5 |
| Gross margin | 41.7% | 28.0% | 18.5% |
| Research and development | 356.5 | 303.9 | 302.2 |
| Selling, general and administrative | 363.2 | 348.2 | 310.7 |
| Restructuring and related charges | 11.4 | 22.8 | 72.6 |
| Gain on sale of facility | — | (34.9) | — |
| Income (loss) from operations | 524.8 | (180.1) | (434.0) |
| Loss on debt extinguishment | (7,756.6) | — | — |
| Escrow settlement | 27.5 | — | — |
| Interest expense | (21.8) | (22.2) | (33.8) |
| Other income, net | 53.3 | 30.2 | 62.1 |
| Loss before income taxes | (7,172.8) | (172.1) | (405.7) |
| Income tax (benefit) provision | (237.7) | (198.0) | 140.8 |
| **Net (loss) income** | **(6,935.1)** | **25.9** | **(546.5)** |
| Diluted net (loss) income per share | $(92.96) | $0.37 | $(8.12) |

The shape of fiscal 2026 is an operating business that inflected sharply upward inside a GAAP
net loss created entirely by a non-cash financing charge.

**Revenue** rose $1,369.0 million, or 83.2%: Components up $889.3 million (79.7%) and Systems
up $479.7 million (90.7%). Laser chip and laser assembly shipments accounted for 78% of the
Components increase, supporting broad demand across intra-data-center, data-center-interconnect
and long-haul applications, with a slight rise in laser-chip average selling prices as the
market shifted to 200G lane speeds; the remaining ~22% came from higher volumes of data
transport products (long-haul line subsystems and pump products for undersea installations).
Within Systems, cloud transceiver revenue grew more than 173% on volume, partly offset by lower
selling prices, and optical circuit switches contributed more than $90.0 million in their
initial shipment phase.

**Gross margin** improved to 41.7% from 28.0%. Management attributes about 54% of the
gross-margin dollar increase to lower manufacturing cost as a percentage of revenue (higher
internal factory utilization), about 29% to mix shift toward higher-margin products, and the
remaining 17% to lower amortization of acquired intangibles.

**Operating expense** grew far more slowly than revenue. R&D rose $52.6 million (17.3%),
driven by a $23.2 million increase in cash incentive compensation (the fiscal 2025 annual
incentive plan had been mostly equity-based), $19.9 million of new R&D programs and $14.4
million of payroll-related expense from equity-related taxes, offset by $4.5 million less
stock-based compensation. SG&A rose only $15.0 million (4.3%): $20.2 million more cash
incentive compensation, $16.0 million more payroll-related expense and a $7.7 million loss on
the sale of two commercial buildings, offset by $9.5 million less intangible amortization,
$5.1 million less stock-based compensation following fiscal 2025 equity-award modifications,
$5.2 million less executive-transition cost and $3.2 million less bad-debt expense.
Restructuring and related charges were $11.4 million, principally a reduction in force.
Operating income therefore swung to $524.8 million (17.4% of revenue) from a $180.1 million
loss.

**Loss on debt extinguishment of $7,756.6 million** is the single dominant line. In the fourth
quarter of fiscal 2026 Lumentum entered privately negotiated exchanges with holders of its 2026,
2028 and 2029 convertible notes, issuing approximately 10.6 million common shares to retire
about $264.8 million, $650.4 million and $209.7 million of principal respectively together with
the conversion value above principal. The resulting charge is $7,755.1 million of conversion
value in excess of principal amounts, $3.1 million of transaction costs and $2.9 million of
unamortized issuance costs, offset by $2.9 million of forfeited interest and a $1.6 million
negotiated exchange discount. It is non-cash, and substantially all of it was non-deductible
for tax (about $4.4 million was deductible). This charge is why a year of $524.8 million
operating income reports a $6,935.1 million net loss.

**Other items.** The Cloud Light escrow settlement produced $27.5 million of income:
acquisition consideration had included $75.8 million held in escrow for indemnification, and in
November 2025 Lumentum and the former Cloud Light shareholders settled outstanding
indemnification claims for $27.5 million and released the balance, recorded in other income
because the measurement period had expired. Other income, net rose $23.1 million on $25.8
million more interest and investment income from higher short-term balances (chiefly the $2.0
billion preferred proceeds), offset partly by $5.9 million of inducement expense on the partial
repurchase of the 2026 Notes. Interest expense was roughly flat, down $0.4 million.

**Taxes.** The fiscal 2026 benefit of $237.7 million diverges from the 21% U.S. statutory rate
mainly because of the non-deductible extinguishment loss and tax on U.S. inclusions from GILTI
and Subpart F, partly offset by valuation-allowance releases. In the fourth quarter Lumentum
released **$236.3 million of valuation allowance** on most of its U.S. federal and state
deferred tax assets. The reasoning matters: on reported figures the company has a cumulative
three-year U.S. loss, but that loss is driven by the $7,756.6 million extinguishment charge, so
management built an objectively verifiable estimate of future taxable income from recent U.S.
operating results excluding that charge — without it, the three-year position would have been
cumulative U.S. income. Existing contracts and firm sales backlog were additional positive
evidence. An $81.4 million valuation allowance remains against federal foreign tax credit and
California R&D credit carryforwards. (For comparison, fiscal 2025 included a $153.1 million
release on U.K. deferred tax assets.)

### Acquisition

On March 17, 2026 Lumentum acquired a manufacturing facility in **Greensboro, North Carolina**
for **$38.0 million in cash**, accounted for as a business combination: $39.5 million of
property, plant and equipment acquired, a $9.9 million below-market contract liability assumed,
and $8.4 million of goodwill attributed to the assembled workforce and to the strategic benefit
of owning an operating fabrication facility to expand capacity. The transaction included a
transitional supply agreement under which Lumentum manufactures wafers for the seller for about
15 months as an agent, with revenue recognized net; $2.3 million of the below-market liability
was recognized in revenue in fiscal 2026 and $7.6 million remained. Acquisition costs were $0.4
million.

### Liquidity, capital structure and cash flows

Cash and cash equivalents were **$2,043.5 million** at June 27, 2026 versus $520.7 million a
year earlier, plus $694.9 million of short-term investments (all U.S.-held) versus $356.4
million. Cash held outside the United States was $417.9 million, mainly in the U.K., Japan,
Hong Kong, China, Switzerland and Thailand; the intent is to reinvest most of it indefinitely.
Total cash, cash equivalents and short-term investments were $2,738.4 million.

Cash rose $1,522.8 million on the year:

- **Operating activities provided $751.4 million**, reconciling the $6,935.1 million net loss
  against $7,978.5 million of non-cash items, less $292.0 million of working-capital use.
  Working capital absorbed cash through a $270.4 million rise in receivables on higher revenue,
  a $228.4 million inventory build for demand, and $96.2 million more prepayments and other
  assets (including $45.3 million of VAT receivables), offset by $221.6 million more accounts
  payable, $88.4 million more accrued payroll and $43.4 million more accrued expenses.
- **Investing used $785.5 million**: capital expenditures of $451.3 million, net purchases of
  short-term investments of $338.6 million and the $38.0 million acquisition, less $42.4
  million of asset-sale proceeds.
- **Financing provided $1,556.9 million**: $1,999.7 million net from the Series A preferred,
  $1,254.7 million net from the 2032 Notes, $47.9 million of SMBC term loans and $17.1 million
  from employee stock plans; against $843.1 million to partially repurchase the 2026 Notes,
  $520.0 million for note conversions, $281.0 million of tax payments on net share settlement of
  restricted stock, $102.0 million for the 2032 capped calls, $14.0 million of term-loan
  principal and $2.4 million of revolver financing costs.

**Debt** totalled $1,637.4 million at June 27, 2026 ($1,596.9 million current) against
$2,573.2 million a year earlier ($2,562.6 million non-current). Convertible notes fell to
$1,544.6 million carrying value from $2,506.2 million. Principal activity across fiscal 2026:
issuance of $1,265.0 million of 2032 Notes, $519.4 million of conversions settled in cash,
$1,124.9 million of equitizations and $581.1 million of induced conversion, taking aggregate
principal from $2,514.7 million to $1,554.3 million — 2026 Notes $54.8 million, 2028 Notes
$179.6 million, 2029 Notes $54.9 million, 2032 Notes $1,265.0 million.

- **2032 Notes**: issued September 8, 2025, $1,265.0 million of 0.375% convertible senior notes
  due March 15, 2032, $1,254.7 million net of $10.3 million issuance costs. Conversion price
  approximately $187.77 per share. Concurrently $843.1 million of proceeds repurchased $581.1
  million of 2026 Notes (treated as an induced conversion: $256.9 million charged to additional
  paid-in capital, $5.9 million of inducement expense), and $102.0 million bought capped call
  options with an initial cap price of $268.24 per share.
- **Conversion trigger.** Because the stock closed at or above 130% of the applicable conversion
  price for 20 of the last 30 trading days of fiscal 2026, **all series of notes are
  convertible at holders' option during the first quarter of fiscal 2027**, and all outstanding
  notes are therefore classified current. Principal must be settled in cash; conversion value
  above principal may be settled in cash, shares or a combination at the company's election.
- **Term loans** (SMBC 2026 and 2029 at 0.88% and 1.44%, Mizuho at 0.90%) totalled $92.8
  million.
- **Revolver.** On December 19, 2025 Lumentum entered a Credit Agreement for a $400.0 million
  senior secured revolving facility including a $23.0 million letter-of-credit sublimit; no
  borrowings were outstanding at June 27, 2026.

Other commitments and balance-sheet items: purchase obligations of $2.4 billion, generally
expected to be fulfilled within a year; $67.2 million of unrecognized tax benefits in other
non-current liabilities; expected fiscal 2027 pension contributions of $1.8 million against
small net projected benefit obligations in Japan ($2.3 million), Thailand ($5.6 million) and
Switzerland ($0.3 million); warranty reserve up to $24.7 million from $14.4 million on a $25.9
million provision. Total assets were $7,307.5 million and stockholders' equity $4,643.9
million, with additional paid-in capital at $12,430.1 million against a $7,796.3 million
accumulated deficit — the arithmetic footprint of settling converts in stock. Shares
outstanding grew to 88.6 million common plus 2.9 million preferred, from 69.8 million common.
Approximately $635.9 million of unrestricted operating-account cash sat with financial
institutions, a concentration the company flags. No dividends are expected, and there were no
share repurchases in fiscal 2026. Internal control over financial reporting was assessed as
effective at June 27, 2026, with an unqualified opinion from Deloitte & Touche LLP dated
August 17, 2026.

---

## Current quarter — fiscal fourth quarter 2026

*From the results announcement furnished as Exhibit 99.1 to the Current Report on Form 8-K
dated August 11, 2026 (SEC accession 0001628280-26-055726), with the annual figures confirmed
in the fiscal 2026 Form 10-K.*

Net revenue for the quarter ended June 27, 2026 was **$1,006.3 million**, up 24.5% sequentially
from $808.4 million in the third quarter and up 109.3% from $480.7 million a year earlier — the
company's first billion-dollar quarter. Components were $649.4 million (64.5% of revenue, up
102.7% year over year) and Systems $356.9 million (35.5%, up 122.6%).

The non-GAAP measures that follow — in the table, in the full-year figures and in the fiscal 2027
outlook — are stated on the basis defined in Exhibit 99.1. Two recurring items account for $83.6
million of the $89.5 million gap between the quarter's $279.3 million GAAP and $368.8 million
non-GAAP income from operations: $50.1 million of stock-based compensation and related payroll
taxes, and $33.5 million of amortization of acquired intangibles. The same two dominate the
full-year operating reconciliation, at $191.3 million and $135.7 million. The rest of the quarter's
operating adjustments are minor: $2.5 million of intangible assets written off; $2.4 million of
restructuring and related charges; $0.5 million of integration-related costs; and $0.5 million of
other charges. The remaining exclusions sit below the operating line — the loss on debt
extinguishment discussed below, $2.2 million of foreign exchange losses, $0.8 million of non-cash
interest expense and $361.1 million of non-GAAP income tax reconciling adjustments — or were nil in
the quarter and carried by the full year or by fiscal 2025 instead: a $9.8 million
acquisition-related warranty provision, a $27.5 million escrow settlement benefit,
acquisition-related costs, inducement expense and a gain on sale of facility. Adjusted EBITDA is
reconciled separately from GAAP net income (loss) and removes those items together with interest
expense; other income, net; income taxes; and depreciation.

| Q4 FY2026 | GAAP | Non-GAAP |
|---|---|---|
| Gross margin | 47.4% (Q3 44.2%, Q4 FY25 33.3%) | 50.4% (Q3 47.9%, Q4 FY25 37.8%) |
| Operating margin | 27.8% (Q3 21.6%, Q4 FY25 (1.7)%) | 36.6% (Q3 32.2%, Q4 FY25 15.0%) |
| Income from operations | $279.3M | $368.8M |
| Net income (loss) | $(7,161.7)M, $(84.65)/diluted share | $326.3M, $3.23/diluted share |

The GAAP quarterly loss is the $7,756.6 million non-cash extinguishment charge from the
fourth-quarter equitization of convertible notes; on the company's non-GAAP basis the quarter
earned $326.3 million. Adjusted EBITDA was $406.4 million for the quarter and $1,025.8 million
for the year, against $98.7 million and $264.2 million respectively in fiscal 2025. Full-year
non-GAAP net income was $782.3 million, or $8.67 per diluted share, versus $146.4 million and
$2.06. Total cash, cash equivalents and short-term investments closed the quarter at $2.7
billion, down $433.9 million sequentially — cash used to settle note conversions — but up $1.9
billion for the year.

Management's framing, from President and CEO Michael Hurlston: AI compute workloads are pushing
data-center architects toward optical links, and the growth drivers he identifies as still
early are optical circuit switch solutions and the cloud module business, where 1.6T adoption is
advancing. He cites rising demand for ultra-high-power co-packaged-optics lasers, an initial
order for external laser source modules, and near-package optics engagements as evidence optics
are beginning to penetrate in-rack connectivity and expand the addressable market.

**Guidance for the first quarter of fiscal 2027:** net revenue of **$1.225 billion to $1.275
billion**, non-GAAP operating margin of **39.5% to 40.5%**, and non-GAAP diluted net income per
share of **$4.05 to $4.35**. Management describes the $1.25 billion midpoint as reaching its
target model more than a quarter ahead of schedule. No GAAP reconciliation of the outlook was
provided; the company cites the volatility of items such as stock-based compensation,
acquisition and integration costs and restructuring charges.

For reference, the preceding quarter as separately reported in the Quarterly Report on Form
10-Q for the period ended March 28, 2026 (SEC accession 0001628280-26-030777): revenue of
$808.4 million with GAAP net income of $144.2 million, gross margin of 44.2% versus 28.8% a
year earlier, two customers at 26% and 12% of revenue, cloud transceiver revenue up more than
$137.0 million year over year and optical circuit switches contributing more than $25.0 million
in the quarter.

---

## Subsequent events

The fiscal 2026 Form 10-K contains no subsequent-events note in its notes to the consolidated
financial statements, which end at Note 18. The post-year-end facts it and the company's other
reports do disclose are the following.

- **Convertible note conversions.** As of August 14, 2026 Lumentum had received early
  conversion requests totalling **$757.8 million aggregate principal amount** of its notes.
  Principal will be settled in cash; conversion value above principal may be settled in cash,
  shares, or a combination, at the company's election. By comparison, $519.4 million of
  principal was settled in cash during fiscal 2026. No early conversion requests had been
  received on the 2032 Notes as of that date. Because the 130%-of-conversion-price test was met
  over the last 30 trading days of fiscal 2026, every series remains convertible at holders'
  option throughout the first quarter of fiscal 2027, and all outstanding notes are classified
  as current liabilities at June 27, 2026. (Reported in Item 7 and Note 10 of the fiscal 2026
  Form 10-K, SEC accession 0001628280-26-057358.)
- **Officer retirement.** On July 27, 2026 Vincent Retort, Executive Vice President, Global
  Reliability & Quality, notified the company of his planned retirement effective in October
  2026. He agreed to provide consulting services for a two-year term, during which his
  outstanding equity awards continue to vest on their existing schedules so long as he remains a
  service provider. (Current Report on Form 8-K dated July 27, 2026, SEC accession
  0001628280-26-051078.)
- **Fourth-quarter and full-year results release.** Results for the quarter and year ended June
  27, 2026, and first-quarter fiscal 2027 guidance, were reported on August 11, 2026 (SEC
  accession 0001628280-26-055726), ahead of the Form 10-K filing on August 17, 2026.
- **Pension funding.** The company expects to contribute $1.8 million to its defined benefit
  pension plans in fiscal 2027.
- **Stockholders of record** numbered 1,657 as of August 14, 2026.

No acquisition, divestiture, financing, borrowing or litigation outcome is disclosed as
occurring after June 27, 2026. The transactions that reshaped the capital structure — the
$1,265.0 million 2032 Notes in September 2025, the $2.0 billion NVIDIA preferred placement in
March 2026, the $400.0 million revolver in December 2025, and the April and May 2026 note
equitizations — all closed inside fiscal 2026 and are described above.

The most recent quarterly report, for the period ended March 28, 2026, carried a
subsequent-event note covering only the April 7, 2026 exchange agreements: approximately 5.7
million common shares issued for roughly $474.6 million aggregate principal of 2026 and 2029
Notes plus the conversion value above principal, with no cash proceeds to the company and
incremental dilution of about 0.6 million shares. Those exchanges closed in April 2026 and are
reflected in the fiscal 2026 annual results.