Note Regarding Forward-Looking Statements
This Quarterly Report on Form 10-Q contains "forward-looking statements" that
involve risks, estimates and uncertainties, as well as assumptions that, if they
never materialize or prove incorrect, could cause our results and the timing of
certain events to differ materially from those expressed or implied by such
forward-looking statements. Such forward-looking statements include, but are not
limited to, our expectations regarding revenue, gross margin, operating
expenses, cash flows and other financial items; our expectations regarding
industry-wide supply chain challenges; the severity, magnitude, duration and
effects of the COVID-19 pandemic; the extent to which the COVID-19 pandemic and
related impacts will materially and adversely affect our business operations,
financial performance, results of operations, financial position, stock price
and personnel; achievement of strategic objectives, including in the third
quarter of 2021; any statements of the plans, strategies and objectives of
management for future operations and personnel; remaining payments under the
2020 Restructuring Plan; estimates of payments related to future restructuring;
the impact of new customer network footprint on our gross margin; statements
regarding our ERP systems; impacts of changes in policy by the presidential
administration in the United States; the effects of seasonal patterns in our
business; factors that may affect our operating results; anticipated customer
acceptance of our solutions; statements concerning new products or services,
including new product features; statements related to capital expenditures;
statements related to working capital and liquidity; statements related to
future economic conditions, performance, market growth or our sales cycle; our
ability to identify, attract and retain highly skilled personnel; statements
related to our convertible senior notes and credit facility; statements related
to the impact of tax regulations; statements related to the effects of
litigation on our financial position, results of operations or cash flows;
statements related to factors beyond our control, such as natural disasters,
acts of war or terrorism, epidemics and pandemics; statements related to new
accounting standards; statements as to industry trends and other matters that do
not relate strictly to historical facts; and statements of assumptions
underlying any of the foregoing. These statements are often identified using of
words such as "anticipate," "believe," "could," "estimate," "expect," "intend,"
"may," "should," "will," or "would," and similar expressions or variations.
These statements are based on the beliefs and assumptions of our management
based on information currently available to management. Factors that could cause
or contribute to such differences include, but are not limited to, those
identified below, and those discussed in the section titled "Risk Factors"
included in Part II, Item 1A. of this Quarterly Report on Form 10-Q and in our
other filings with the Securities and Exchange Commission ("SEC"), including our
Annual Report on Form 10-K for the fiscal year ended December 26, 2020 as filed
on March 3, 2021. You should review these risk factors for a more complete
understanding of the risks associated with an investment in our securities. Such
forward-looking statements speak only as of the date of this report. We disclaim
any obligation to update any forward-looking statements to reflect events or
circumstances after the date of such statements. The following discussion and
analysis should be read in conjunction with our condensed consolidated financial
statements and notes thereto included elsewhere in this Quarterly Report on Form
10-Q.
Overview
We are a global supplier of networking solutions comprised of networking
equipment, software and services. Our portfolio of solutions includes optical
transport platforms, compact modular platforms, converged packet-optical
transport platforms, optical line systems, disaggregated router platforms, and a
suite of networking and automation software offerings, and support and
professional services.
Our customers include telecommunications service providers, internet content
providers ("ICPs"), cable providers, wholesale carriers, research and education
institutions, large enterprises and government entities. Our networking
solutions enable our customers to deliver high-bandwidth business and consumer
communications services. Our comprehensive portfolio of networking solutions
also enables our customers to scale their transport networks as end-user
services and applications continue to drive growth in demand for network
bandwidth. These end-user services and applications include, but are not limited
to, high-speed internet access, business ethernet services, 4G/5G mobile
broadband, cloud-based services, high-definition video streaming services,
virtual and augmented reality and the Internet of Things.
Our systems are highly scalable, flexible and designed with open networking
principles for ease of deployment. We build our systems using a combination of
internally manufactured and third-party components. Our portfolio includes
systems that leverage our innovative, vertically integrated optical engine
technology, comprised of large-scale photonic integrated circuits ("PICs") and
digital signal processors ("DSPs"). We optimize the manufacturing process by
using indium phosphide to build our PICs, which enables the integration of
hundreds of optical functions onto a set of semiconductor chips. This
large-scale integration of our PICs and advanced DSPs allows us to deliver
high-performance transport networking platforms with features that customers
care about the
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most, including low cost per bit, low power consumption and space savings. In
addition, we design our optical engines to increase the capacity and reach
performance of our products by leveraging coherent optical transmission. We
believe our vertical integration strategy becomes increasingly more valuable as
our customers transition to 800 gigabits per second ("Gb/s") per wavelength
transmission speeds and beyond, as the combination of our optical integration,
DSP, and tightly integrated packaging enables a leading optical performance at
higher optical speeds.
Over the past several years, we expanded our portfolio of solutions, evolving
from our initial focus on the long-haul and subsea optical transport markets to
offer an expanded suite of networking solutions that address multiple markets
within the end-to-end transport infrastructure. These markets include metro
access, metro aggregation and switching, data center interconnect ("DCI")
transport, and long-haul and subsea transport.
We have grown our solutions portfolio through internal development as well as
acquisitions. In 2014, we introduced the Infinera Cloud Xpress to address the
emerging DCI market opportunity. In 2015, we entered the metro market with the
acquisition of Transmode AB. In October 2018, we closed the Acquisition and
expanded our product portfolio and customer base by acquiring Coriant, a
privately held global supplier of open network solutions for the largest global
network operators. The Acquisition has helped position us as one of the largest
providers of vertically integrated transport networking solutions in the
industry and enhanced our ability to serve a global customer base and accelerate
the delivery of the innovative solutions that our customers demand. The
Acquisition has also enabled us to expand the breadth of customer applications
we can address, including 600 Gb/s optical transport, metro aggregation and
switching, disaggregated routing, and software-enabled multi-layer network
management and control. In 2021 we announced the expansion of our solutions
portfolio with the planned introduction of a suite of coherent optical
pluggables designed to support point-to-point and point-to-multipoint transport
applications.
Our high-speed optical transport platforms and pluggable solutions are
differentiated by our photonic components and Infinite Capacity Engine ("ICE")
coherent optical engine technology. ICE enables different subsystems that can be
customized for a variety of network applications in different transport markets,
including metro, DCI, long-haul and subsea. Our latest generation of coherent
optical engine technology delivers multi-terabit opto-electronic subsystems
powered by our fifth-generation PIC and latest generation DSP (the combination
of which we market as ICE6). ICE6 is capable of delivering 800 Gb/s over a
single wavelength. ICE6 will be integrated into various networking platforms in
our product portfolio.
Our products are designed to be managed by a suite of software solutions that
enable simplified network management, multi-layer service orchestration, and
automated operations. We also provide software-enabled programmability that
offers differentiated capabilities such as Instant Bandwidth. Combined with our
differentiated hardware solutions, Instant Bandwidth enables our customers to
purchase and activate bandwidth as needed through our unique software licensing
feature set. This, in turn, allows our customers to accomplish two key
objectives: (1) limit their initial network startup costs and investments; and
(2) instantly activate new bandwidth as their customers' and their own network
needs evolve.
We believe our portfolio of solutions benefits our customers by providing a
unique combination of highly scalable capacity and features that address various
transport applications and ultimately simplify and automate network operations.
Our high-performance optical transport solutions leverage the industry shift to
open optical network architectures and enable our customers to efficiently and
cost-effectively meet bandwidth demand, which continues to grow 30%-35% year
over year.
For the three months ended June 26, 2021, no customer accounted for 10% or more
of our total revenue. One customer accounted for 13% of our total revenue for
the three months ended June 27, 2020. For the six months ended June 26, 2021,
one customer accounted for 10% of our total revenue. The same customer accounted
for 12% of our total revenue for the six months ended June 27, 2020.
We are headquartered in San Jose, California, with employees located throughout
(i) the United States; (ii) Canada, Latin America and South America ("Other
Americas"); (iii) Europe, Middle East and Africa ("EMEA"); and (iv) Asia Pacific
and Japan ("APAC"). We sell our products both through our direct sales force and
indirectly through channel partners.
Impact of COVID-19 Pandemic
COVID-19 was declared a global pandemic in March 2020. Although the COVID-19
pandemic has impacted our employees, business and financial position for more
than a year, its future impact on us remains uncertain. We
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will continue monitoring and adjusting our operations, as appropriate, in
response to the ongoing COVID-19 pandemic.
Employees

Since the outset of the COVID-19 pandemic, we have taken a number of
precautionary steps to safeguard our business and our employees from its
effects, including temporarily closing or substantially limiting the presence of
personnel in our offices in several impacted locations, implementing travel
restrictions and withdrawing from various industry events. Since a large
percentage of our workforce is accustomed to online work environments and online
collaboration tools, to date we have been able to remain productive and in
contact with one another and our customers and vendors. To the extent that
pandemic conditions continue to worsen in certain countries in the future and
lead to higher rates of infections among the general population and our own
workforce, it may be more difficult for us to maintain these levels of
productivity. For those employees who may need to be in offices, laboratory and
manufacturing environments, or at business partner sites to perform their roles,
we continue to take appropriate measures to protect their health and safety and
create and maintain a safe working environment. However, sustained restrictions
on the ability of our engineers to work in our offices as a result of
restrictions imposed by governments, or us, has made and could continue to make
it more difficult for them to collaborate as effectively as desired in the
development of new products, which can affect development schedules.
Business Operations
In addition, we have implemented certain business continuity plans in response
to the COVID-19 pandemic in order to minimize any business disruption and to
protect our supply chain, customer fulfillment sites and support operations.
Although we believe these actions have somewhat mitigated the impact of the
COVID-19 pandemic on our business, we have experienced some disruption and
delays in our supply chain and manufacturing operations, logistics, and customer
support operations, including shipping delays, higher transport costs, and
certain limitations on our ability to access customer fulfillment and service
sites. We are dependent on sole source and limited source suppliers for several
key components, and we have experienced capacity issues, longer lead times and
increased costs with certain of these component suppliers, impacting our
operational processes and results of operations. We have also seen disruptions
in customer demand, including due to delays in the customer certification
process resulting from customer facility closures or access restrictions. During
fiscal 2020 and the first half of fiscal 2021, some of these disruptions
negatively impacted our revenue and our results of operations. The impact of the
COVID-19 pandemic on our business and results of operations during the remainder
of fiscal 2021 remains uncertain and is dependent in part on future infection
rates, the emergence of new strains of the virus, the effectiveness and
availability of vaccinations, supply chain resilience and broader global
macroeconomic developments.
We continue to monitor the COVID-19 pandemic, including recent lifting of
government restrictions in various jurisdictions, and actively assess potential
implications to our business, supply chain and customer demand. If the COVID-19
pandemic or its adverse effects become more severe or prevalent or are prolonged
in the locations where we, our customers, suppliers or contract manufacturers
conduct business or remain unpredictable, or we experience more pronounced
disruptions in our operations, or in economic activity and demand generally, our
business and results of operations in future periods could be materially
adversely affected.
Liquidity and Capital Resources
While we believe we have enough cash in combination with our Credit Facility (as
defined below) to operate our business for the next 12 months, if the impact of
the COVID-19 pandemic to our business and financial position is more extensive
than expected, we may need additional capital to enhance liquidity and working
capital. We have historically been successful in our ability to secure other
sources of financing, such as accessing capital markets, and implementing other
cost reduction initiatives such as restructuring, delaying or eliminating
discretionary spending to satisfy our liquidity needs. However, our access to
these sources of capital could be materially and adversely impacted and we may
not be able to receive terms as favorable as we have historically received.
Capital markets have been volatile and there is no assurance that we would have
access to capital markets at a reasonable cost, or at all, at times when capital
is needed. In addition, some of our existing debt has restrictive covenants that
may limit our ability to raise new debt, which would limit our ability to access
liquidity by those means without obtaining the consent of our lenders.
In May 2019, we entered into a financing assistance agreement with a third-party
contract manufacturer whereby the contract manufacturer agreed to provide
funding of up to $40.0 million to cover severance, retention and other costs
associated with the transfer of our manufacturing operations in Berlin, Germany
to the contract manufacturer. The funding was secured against certain foreign
assets, carried a fixed interest rate of 6% and
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repayable in 12 months from the date of each draw down. In October 2020, the
payment terms were amended to extend the due date by six months, set the fixed
interest rate at 3% during such period, and allowed for the phased transfer of
inventory to offset the amount due. As of June 26, 2021, there was no
outstanding balance as the loan and accrued interest was fully paid off in April
2021.
Critical Accounting Policies and Estimates
Management's Discussion and Analysis of Financial Condition and Results of
Operations is based upon our condensed consolidated financial statements, which
we have prepared in accordance with the U.S. generally accepted accounting
principles ("U.S. GAAP"). The preparation of these financial statements requires
management to make estimates, assumptions and judgments that can affect the
reported amounts of assets, liabilities, revenue and expenses, and related
disclosure of contingent assets and liabilities. Management bases its estimates
on historical experience and on various other assumptions that it believes to be
reasonable under the circumstances, the results of which form the basis for
making judgments about the carrying values of assets and liabilities that are
not readily apparent from other sources.
An accounting policy is deemed to be critical if it requires a significant
accounting estimate to be made based on assumptions about matters that are
highly uncertain at the time the estimate is made, if different estimates
reasonably could have been used, or if changes in the estimate that are
reasonably likely to occur could materially impact the financial statements.
Management believes that there have been no significant changes during the six
months ended June 26, 2021 to the items that we disclosed as our critical
accounting policies and estimates in Management's Discussion and Analysis of
Financial Condition and Results of Operations in our Annual Report on Form 10-K
for the fiscal year ended December 26, 2020.
Due to the COVID-19 pandemic, there has been and continues to be uncertainty and
disruption in the global economy and financial markets. We are not aware of any
specific event or circumstance that would require updates to our estimates or
judgments or require us to revise the carrying value of our assets or
liabilities as of the date we filed this Quarterly Report on Form 10-Q. These
estimates may change as new events occur and additional information is obtained.
Actual results could differ from these estimates under different assumptions or
conditions.

Results of Operations
The following sets forth, for the periods presented, certain unaudited condensed
consolidated statements of operations information (in thousands, except
percentage data):
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                                                                           Three Months Ended
                                                     June 26, 2021                                     June 27, 2020
                                                                  % of total                                        % of total
                                           Amount                  revenue                  Amount                   revenue                Change               % Change
Revenue:
Product                               $     257,441                         76  %       $     261,227                         79  %       $  (3,786)                     (1) %
Services                                     80,786                         24  %              70,360                         21  %          10,426                      15  %
Total revenue                         $     338,227                        100  %       $     331,587                        100  %       $   6,640                       2  %
Cost of revenue:
Product                               $     172,053                         51  %       $     186,519                         56  %       $ (14,466)                     (8) %
Services                                     41,446                         12  %              36,599                         11  %           4,847                      13  %
Amortization of intangible assets             4,614                          1  %               8,721                          3  %          (4,107)                    (47) %
Acquisition and integration costs                 -                          -  %                 750                          -  %            (750)                      NMF*
Restructuring and related                      (269)                         -  %               1,591                          -  %          (1,860)                   (117) %
Total cost of revenue                 $     217,844                         64  %       $     234,180                         70  %       $ (16,336)                     (7) %
Gross profit                          $     120,383                       35.6  %       $      97,407                       29.4  %       $  22,976                      24  %

                                                                            Six Months Ended
                                                     June 26, 2021                                     June 27, 2020
                                                                  % of total                                        % of total
                                           Amount                  revenue                   Amount                  revenue                Change               % Change
Revenue:
Product                               $     511,602                         76  %       $     516,419                         78  %       $  (4,817)                     (1) %
Services                              $     157,532                         24  %       $     145,441                         22  %          12,091                       8  %
Total revenue                         $     669,134                        100  %       $     661,860                        100  %       $   7,274                       1  %
Cost of revenue:
Product                                     337,538                         50  %             388,311                         59  %       $ (50,773)                    (13) %
Services                                     84,706                         13  %              77,294                         12  %           7,412                      10  %
Amortization of intangible assets             9,230                          1  %              17,349                          3  %          (8,119)                    (47) %
Acquisition and integration costs                 -                          -  %               1,785                          -  %          (1,785)                      NMF*
Restructuring and related                       245                          -  %               2,748                          -  %          (2,503)                    (91) %
Total cost of revenue                 $     431,719                         64  %       $     487,487                         74  %       $ (55,768)                    (11) %
Gross profit                          $     237,415                       35.5  %       $     174,373                       26.3  %       $  63,042                      36  %


*NMF = Not meaningful
Revenue
Total product revenue decreased by $3.8 million, or 1%, during the three months
ended June 26, 2021 compared to the corresponding period in 2020. Declines in
our cable, Tier 1 and other service provider verticals were partially offset by
increases in our ICP vertical as strong demand was tempered by industry-wide
supply chain challenges. Total product revenue decreased by $4.8 million, or 1%,
during the six months ended June 26, 2021 compared to the corresponding period
in 2020. During the six months ended June 26, 2021, revenue from a customer who
had spent heavily on a large network deployment in the corresponding period in
2020 was lower, partially offset by revenue increases across the remaining Tier
1 vertical as well as increases across our ICP, cable and other service provider
verticals.
Total services revenue increased by $10.4 million, or 15% for the three months
ended June 26, 2021 compared to the corresponding period in 2020. Total services
revenue increased by $12.1 million, or 8% for the six months ended June 26, 2021
compared to the corresponding period in 2020. For each of these three- and
six-month periods, this increase was attributable to growth in professional
services due to an increase in network installation revenue, somewhat offset by
lower maintenance revenue.
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We expect our total revenue will be higher in the third quarter of 2021 as
compared to the second quarter of 2021, driven primarily by demand growth from
certain ICP and other service provider customers as well as availability of new
products introduced in the second quarter of 2021.
The following table summarizes our revenue by geography and sales channel for
the periods presented (in thousands, except percentage data):
                                                                       

Three Months Ended


                                                   June 26, 2021                                June 27, 2020
                                                                % of total                                   % of total
                                            Amount                revenue                Amount                revenue             Change              % Change
Total revenue by geography:
Domestic                               $     175,184                    52  %       $     166,223                    50  %       $  8,961                      5  %
International                                163,043                    48  %             165,364                    50  %         (2,321)                    (1) %
                                       $     338,227                   100  %       $     331,587                   100  %       $  6,640                      2  %
Total revenue by sales channel:
Direct                                 $     265,022                    78  %       $     268,326                    81  %       $ (3,304)                    (1) %
Indirect                                      73,205                    22  %              63,261                    19  %          9,944                     16  %
                                       $     338,227                   100  %       $     331,587                   100  %       $  6,640                      2  %


                                                                       Six Months Ended
                                                  June 26, 2021                                June 27, 2020
                                                               % of total                                   % of total
                                           Amount                revenue                Amount                revenue             Change              % Change
Total revenue by geography:
Domestic                              $     332,833                    50  %       $     336,749                    51  %       $ (3,916)                    (1) %
International                               336,301                    50  %             325,111                    49  %         11,190                      3  %
                                      $     669,134                   100  %       $     661,860                   100  %       $  7,274                      1  %
Total revenue by sales channel:
Direct                                $     536,323                    80  %       $     512,677                    77  %       $ 23,646                      5  %
Indirect                                    132,811                    20  %             149,183                    23  %        (16,372)                   (11) %
                                      $     669,134                   100  %       $     661,860                   100  %       $  7,274                      1  %


Domestic revenue increased by $9.0 million, or 5%, during the three months ended
June 26, 2021 compared to the corresponding period in 2020, driven primarily by
increases from certain ICP and Tier 1 customers and partially offset by
decreases in each of our cable and other service provider verticals. Domestic
revenue decreased by $3.9 million, or 1%, during the six months ended June 26,
2021 compared to the corresponding period in 2020, driven primarily by declines
from certain ICP and other service providers, and somewhat offset by an
improvement in our cable vertical and from our Tier 1 customers.
International revenue decreased by $2.3 million, or 1%, during the three months
ended June 26, 2021 compared to the corresponding period in 2020. In this
period, we had decreases from certain Tier 1 customers in APAC and EMEA that was
partially offset by customers in the cable and other service provider verticals.
International revenue increased by $11.2 million, or 3%, during the six months
ended June 26, 2021 compared to the corresponding period in 2020. In this
period, we had strong growth from certain ICP, cable and other service providers
in EMEA and APAC that were partially offset by decreases in Tier 1 customer
revenue in APAC and EMEA.
Direct revenue decreased by $3.3 million, or 1%, and indirect revenue increased
by $9.9 million, or 16% during the three months ended June 26, 2021 compared to
the corresponding period in 2020. The increase in indirect revenue for the
second quarter of 2021 was driven by certain ICP customers who purchased through
our indirect sales channel. Direct revenue increased by $23.6 million, or 5%,
and indirect revenue decreased by $16.4 million, or 11%, during the six months
ended June 26, 2021 compared to the corresponding respective period in 2020. The
increase in direct revenue is attributable to growth in professional services
due to an increase in network installation revenue and product revenue at
certain Tier 1 and other service provider verticals. The decrease in indirect
revenue was driven by certain ICP customers who purchased through our indirect
sales channel.

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Cost of Revenue and Gross Margin
Gross profit was $120.4 million during the three months ended June 26, 2021,
with gross margin increasing to 35.6% compared to 29.4% in the corresponding
period in 2020. In the three months ended June 26, 2021, we realized an
improvement in our product margins stemming from a combination of more favorable
product mix, ongoing internal cost improvement initiatives, and lower intangible
amortization expenses. Gross profit was $237.4 million during the six months
ended June 26, 2021, with gross margin increasing to 35.5% compared to 26.3% in
the corresponding period in 2020. This increase was primarily attributable to an
improvement in our product margins stemming from a combination of more favorable
product mix, ongoing internal cost improvement initiatives, and lower intangible
amortization expenses. In addition, in the first quarter of 2020, a higher than
typical portion of our revenue represented initially lower margin line systems
deployments.
We currently expect that gross margin in the third quarter of 2021 will be lower
than that of the second quarter of 2021, largely due to product mix. In the
third quarter of 2021 we anticipate a higher percentage of revenue coming from
initially lower margin line systems deployments as well as higher supply-chain
related costs. Over time, we believe our margins will continue to improve as we
increase the proportion of revenue derived from sales of our vertically
integrated products.
Amortization of Intangible Assets
Amortization of intangible assets decreased by $4.1 million, or 47%, and $8.1
million, or 47%, during the three- and six-month periods ended June 26, 2021,
respectively, compared to the corresponding periods in 2020, due to certain
technologies being fully amortized in the third quarter of 2020.
Acquisition and Integration Costs
Integration costs, within cost of revenue, decreased by $0.8 million and $1.8
million during the three- and six-month periods ended June 26, 2021,
respectively, compared to the corresponding periods in 2020 as we have completed
our integration efforts related to the Acquisition.
Restructuring and Related
Restructuring and related costs primarily consisting of severance and related
costs decreased by $1.9 million, or 117%, and $2.5 million, or 91% during the
three- and six-month periods ended June 26, 2021, respectively, compared to the
corresponding periods in 2020. These decreases primarily reflect the substantial
completion of the Munich-related restructuring in fiscal year 2020, which was
part of our 2018 Restructuring Plan. Also, during the three months ended
June 26, 2021, we incurred a $0.3 million credit resulting from lower than
expected Munich severance and related costs. See Note 9, "Restructuring and
Related Costs" to the Notes to Condensed Consolidated Financial Statements for
more information.
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Operating Expenses
The following tables summarize our operating expenses for the periods presented
(in thousands, except percentage data):
                                                                            Three Months Ended
                                                     June 26, 2021                                     June 27, 2020
                                                                  % of total                                        % of total
                                          Amount                   revenue                  Amount                    revenue                Change              % Change
Operating expenses:
Research and development              $      73,934                         22  %       $      67,090                          20  %       $   6,844                   10   %
Sales and marketing                          33,782                         10  %              31,816                          10  %           1,966                    6   %
General and administrative                   32,197                         10  %              30,101                           9  %           2,096                    7   %
Amortization of intangible assets             4,392                          1  %               4,585                           1  %            (193)                  (4)  %
Acquisition and integration costs                 -                          -  %               3,344                           1  %          (3,344)                    NMF*
Restructuring and related                      (674)                         -  %               5,097                           2  %          (5,771)                (113)  %
Total operating expenses              $     143,631                         43  %       $     142,033                          43  %       $   1,598                    1   %

                                                                             Six Months Ended
                                                     June 26, 2021                                     June 27, 2020
                                                                 % of total                                         % of total
                                           Amount                  revenue                   Amount                   revenue                 Change             % Change
Operating expenses:
Research and development                    147,463                         22  %             135,270                          20  %       $  12,193                    9   %
Sales and marketing                          66,554                         10  %              68,505                          10  %          (1,951)                  (3)  %
General and administrative                   58,703                          8  %              59,721                           9  %          (1,018)                  (2)  %
Amortization of intangible assets             8,797                          1  %               9,140                           1  %            (343)                  (4)  %
Acquisition and integration costs               614                          -  %              12,566                           1  %         (11,952)                 (95)  %
Restructuring and related                     1,645                          1  %              10,677                           2  %          (9,032)                 (85)  %
Total operating expenses              $     283,776                         42  %       $     295,879                          43  %       $ (12,103)                  (4)  %


*NMF = Not meaningful
Research and Development Expenses
Research and development expenses increased by $6.8 million, or 10%, during the
three months ended June 26, 2021, and increased by $12.2 million, or 9%, during
the six months ended June 26, 2021 compared to the corresponding period in 2020.
These increases were primarily attributable to higher employee-related costs
related to bringing our new technologies to market and investments in future
technologies. Our equipment and software spend was also slightly higher as we
optimized spend to focus on our highest growth opportunities. These increases
were partially offset by lower costs related to new products transitioning from
development to production, depreciation related to older technologies, and lower
travel expense. Looking ahead, we expect that development initiatives will
continue to support our strategy of expanding our vertically integrated product
portfolio, which we believe will drive higher revenue and profitability.
Sales and Marketing Expenses
Sales and marketing expenses increased by $2.0 million, or 6%, during the three
months ended June 26, 2021 compared to the corresponding period in 2020. This
increase was primarily attributable to higher employee compensation expenses.
Sales and marketing expense decreased by $2.0 million, or 3%, during the six
months ended June 26, 2021 compared to the corresponding period in 2020. This
decrease was primarily attributable to reductions in travel and
marketing-related expenses, principally driven by the impact of the COVID-19
pandemic, partially offset by higher employee compensation expenses. While
managing costs effectively, we intend to continue
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making prudent investments in customer trials and general market awareness to
maximize future revenue opportunities around new products and technologies.
General and Administrative Expenses
General and administrative expenses increased by $2.1 million, or 7%, during the
three months ended June 26, 2021 compared to the corresponding period in 2020.
The increase was largely due to litigation settlements and related costs as well
as higher employee compensation costs and professional fees, partially offset by
a reduction of customer credit loss, higher tax credits, and lower facility cost
due to site closures. General and administrative expenses decreased by $1.0
million, or 2%, during the six months ended June 26, 2021 compared to the
corresponding period in 2020. The decrease was primarily attributable to higher
tax credits, reductions in professional services, lower facility operating costs
due to site closures and lower stock compensation expense. The reductions in
this period were partially offset by litigation settlements, higher employee
compensation costs and software license fees.
Amortization of Intangible Assets
Amortization of intangible assets decreased by $0.2 million, or 4%, during the
three months ended June 26, 2021, and decreased by $0.3 million, or 4%, during
the six months ended June 26, 2021 compared to the corresponding periods in
2020, primarily due to lower amortization of customer relationships and backlog.
Acquisition and Integration Costs
Integration costs decreased by $3.3 million, during the three months ended
June 26, 2021, and decreased by $12.0 million, during the six months ended
June 26, 2021 compared to the corresponding periods in 2020. We have completed
our integration efforts related to the Acquisition.
Restructuring and Related Costs
Restructuring and related costs decreased by $5.8 million, or 113%, during the
three months ended June 26, 2021, compared to the corresponding period in 2020.
The decrease in the three months ended June 26, 2021 was primarily due to the
substantial completion of restructuring initiatives under the 2018 Restructuring
Plan in fiscal year 2020. Also, during the three-month period ended June 26,
2021, we incurred a $1.0 million credit resulting from lower than expected
Munich severance and related costs.
Restructuring and related costs decreased by $9.0 million, or 85%, during the
six months ended June 26, 2021, compared to the corresponding period in 2020.
The decrease in the six months ended June 26, 2021 was primarily due to the
substantial completion of restructuring initiatives under the 2018 Restructuring
Plan in fiscal year 2020. Also, during the six months ended June 26, 2021, we
incurred a $1.0 million credit resulting from lower than expected Munich
severance and related costs. See Note 9, "Restructuring and Related Costs" to
the Notes to Condensed Consolidated Financial Statements for more information.
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Other Income (Expense), Net
                                            Three Months Ended
                            June 26,       June 27,
                              2021           2020         Change       % Change
Interest income            $      27      $      54      $   (27)         (50) %
Interest expense             (12,017)       (12,436)         419           (3) %
Other gain (loss), net         2,719         (1,992)       4,711         (236) %
Total other expense, net   $  (9,271)     $ (14,374)     $ 5,103          (36) %

                                             Six Months Ended
                            June 26,       June 27,
                              2021           2020         Change       % Change
Interest income                   67             78      $   (11)         (14) %
Interest expense             (23,860)       (21,230)      (2,630)          12  %
Other loss, net               (9,676)       (14,674)       4,998          (34) %
Total other expense, net   $ (33,469)     $ (35,826)     $ 2,357           (7) %


Interest income during the three- and six-month periods ended June 26, 2021 and
June 27, 2020, respectively, was immaterial.
Interest expense decreased by $0.4 million, or 3%, during the three months ended
June 26, 2021 compared to the corresponding period in 2020, primarily due to
repayment of the Credit Facility in January 2021 and repayment of the Finance
Assistance Agreement in April 2021.
Interest expense increased by $2.6 million, or 12%, during the six months ended
June 26, 2021 compared to the corresponding period in 2020, primarily due to
$2.8 million of increased accretion of debt discount and amortization of debt
issuance costs on the 2027 Notes and the 2024 Notes, a $1.0 million of increase
from contractual interest on the 2027 Notes, and a $1.3 million nonrecurring
increase primarily due to interest credit from a supplier in 2020. This increase
was offset by a decrease of $1.4 million primarily due to repayment of the
Credit Facility in January 2021, and a decrease of $0.7 million due to the
repayment of the Finance Assistance Agreement in April 2021, and a decrease of
$0.4 million in other interest related charges.
Other gain (loss), net, increased by $4.7 million, or 236%, during the three
months ended June 26, 2021 compared to the corresponding period in 2020,
primarily due to a decrease in unrealized foreign exchange losses, primarily
driven by the foreign currency exchange rate changes.
Other loss, net, increased by $5.0 million, or 34%, during the six months ended
June 26, 2021 compared to the corresponding period in 2020, primarily due to a
decrease in unrealized foreign exchange losses, primarily driven by the foreign
currency exchange rate changes.
Income Tax Benefit/Expense
Income taxes for the three- and six-month periods ended June 26, 2021
represented a tax expense of $3.1 million and $4.1 million on pre-tax losses of
$32.5 million and $79.8 million, respectively. This compared to a tax expense of
$2.6 million and $3.6 million, on pre-tax losses of $59.0 million and $157.3
million for the three- and six-month periods ended June 27, 2020, respectively.
Provision for income taxes increased by approximately $0.5 million during the
six months ended June 26, 2021, compared to the corresponding period in 2020 as
a result of additional expenses in foreign jurisdictions.
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Liquidity and Capital Resources
                                                 Six Months Ended
                                        June 26, 2021       June 27, 2020

                                                  (In thousands)
Net cash flow provided by (used in):
Operating activities                   $       39,934      $     (128,089)
Investing activities                   $      (25,789)     $      (19,002)
Financing activities                   $     (100,543)     $      240,459



                   June 26, 2021       December 26, 2020

                               (In thousands)
Cash              $      219,735      $          298,014
Restricted cash           13,495                  17,369
                  $      233,230      $          315,383


Our restricted cash balance amounts are primarily pledged as collateral for
certain standby letters of credit related to customer performance guarantees,
value added tax licenses and property leases.
Operating Activities
Net cash provided by operating activities during the six months ended June 26,
2021 was $39.9 million compared to $128.1 million net cash used in operating
activities for the corresponding period in 2020.
Net loss during the six months ended June 26, 2021 was $83.9 million, which
included non-cash charges of $92.5 million such as depreciation, amortization of
intangibles, restructuring charges and related costs, amortization of debt
discount and debt issuance costs, operating lease expense, and stock-based
compensation, compared to a net loss during the three months ended June 27, 2020
of $160.9 million, which included non-cash charges of $104.6 million.
Net cash provided by working capital was $31.4 million during the six months
ended June 26, 2021. Accounts receivable decreased by $36.3 million due to
timing of customer billings and collections. Inventory levels increased by $6.1
million due to our efforts to purchase more inventory to manage lead time due to
the industry semiconductor shortage. Prepaid and other assets decreased by $21.3
million primarily due to timing of tax payments and lower customer contract
assets due to timing of billings and revenue recognition. Accounts payable
decreased by $2.1 million primarily due to timing of payment to suppliers.
Accrued liabilities and other expenses decreased by $3.8 million primarily due
to lower, restructuring liabilities, and tax liabilities. Deferred revenue
decreased by $14.3 million due to the amortization of maintenance renewals and
lower renewals during the period, which are typically contracted on an annual or
multi-year basis.
Net cash used to fund working capital was $71.7 million during the six months
ended June 27, 2020. Accounts receivable decreased by $54.0 million due to lower
revenue and due to cash collections. Inventory levels decreased by $50.2 million
due to lower buffer inventory since we completed our manufacturing integration.
Accounts payable decreased by $77.4 million primarily due to timing of payment
to suppliers and lower purchases. Prepaid and other assets increased by $27.0
million primarily due to timing of tax payments and increase in customer
contract assets. Accrued liabilities and other expenses decreased by $59.9
million primarily due to purchases of shares of our common stock under our ESPP
in February 2020. Deferred revenue decreased by $11.6 million due to
amortization of maintenance renewals and lower renewals during the quarter,
which are typically contracted on an annual or multi-year basis.
Investing Activities
Net cash used in investing activities during the six months ended June 26, 2021
was $25.8 million primarily for purchase of property and equipment.
Net cash used in investing activities during the six months ended June 27, 2020
was $19.0 million entirely for purchase of property and equipment.
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Financing Activities
Net cash used in financing activities during the six months ended June 26, 2021
was $100.5 million compared to net cash provided by financing activities of
$240.5 million in the corresponding period of 2020. Financing activities during
the three months ended June 26, 2021 included payments of $77.0 million
repayment under the Credit Facility and $24.6 million repayment of third party
manufacturing funding (as described below), $3.9 million for term license
purchase and $0.8 million for finance lease obligations. The period also
included net proceeds of $9.3 million from the issuance of shares of our common
stock under the ESPP. These proceeds were offset by the minimum tax withholding
of $3.4 million paid on behalf of certain employees for net share settlements of
RSUs.
Net cash provided by financing activities during the six months ended June 27,
2020 was $240.5 million. Financing activities during the six months ended
June 27, 2020 included proceeds of proceeds of $194.5 million from issuance of
the 2027 Notes and $55.0 million from the Credit Facility (as described below).
The period also included net proceeds from the issuance of shares of our common
stock under the ESPP.
Liquidity
We believe that our current cash, along with the Credit Facility, will be
sufficient to meet our anticipated cash needs for working capital and capital
expenditures, and the interest payments on the Notes and the Credit Facility for
at least 12 months. If the impact of the COVID-19 pandemic to our business and
financial position is more extensive than expected and our existing sources of
cash are insufficient to satisfy our liquidity requirements, we may require
additional capital from equity or debt financings to fund our operations, to
respond to competitive pressures or strategic opportunities, or otherwise. In
addition, we are continuously evaluating alternatives for efficiently funding
our capital expenditures and ongoing operations. We may, from time to time
engage in a variety of financing transactions for such purposes. We may not be
able to secure timely additional financing on favorable terms, or at all. The
terms of any additional financings may place limits on our financial and
operating flexibility. If we raise additional funds through further issuances of
equity or equity-linked securities, our existing stockholders could suffer
dilution in their percentage ownership of us, and any new securities we issue
could have rights, preferences and privileges senior to those of holders of our
common stock.
On March 9, 2020, we issued the 2027 Notes, which will mature on March 1, 2027,
unless earlier repurchased, redeemed or converted. Interest is payable
semi-annually in arrears on March 1 and September 1 of each year, commencing on
September 1, 2020. The net proceeds from the 2027 Notes issuance were
approximately $194.5 million and we intend to use the net proceeds for general
corporate purposes, including working capital to fund growth and potential
strategic projects.
Upon conversion, it is our intention to pay cash equal to the lesser of the
aggregate principal amount or the conversion value of the 2027 Notes. For any
remaining conversion obligation, we intend to pay or deliver, as the case may
be, cash, shares of our common stock, or a combination of cash and shares of our
common stock, at our election. As of June 26, 2021, long-term debt, net,
included $135.9 million outstanding for the 2027 Notes, which represents the
liability component of the $200.0 million principal balance, net of
$64.1 million of unamortized debt discount and debt issuance costs. The debt
discount and debt issuance costs are currently being amortized over the
remaining term until maturity of the 2027 Notes on March 1, 2027. To the extent
that the holders of the 2027 Notes request conversion during an early conversion
window, we may require funds for repayment of such 2027 Notes prior to their
maturity date.
As of June 26, 2021, contractual obligations related to the 2027 Notes are
payments of $2.5 million due for the remainder of 2021, $5.0 million due each
year from 2022 through 2026 and $202.5 million due in 2027. These amounts
represent principal and interest cash payments over the term of the 2027 Notes.
Any future redemption or conversion of the Notes could impact the amount or
timing of our cash payments. For more information regarding the 2027 Notes, see
Note 12, "Debt" to the Notes to Condensed Consolidated Financial Statements.

On August 1, 2019, we entered into the Credit Agreement with Wells Fargo Bank,
and on December 23, 2019 we entered into the Amendment to the Credit Agreement
with BMO Harris Bank N.A. and Wells Fargo Bank, as administrative agent. The
Amended Credit Agreement provides for the Credit Facility, a senior secured
asset-based revolving credit facility of up to $150.0 million, which we may draw
upon from time to time. The Credit Agreement provided us with the option to
increase the total commitments under the Credit Facility from the initial $100.0
million amount by up to an additional $50.0 million to $150.0 million, subject
to certain conditions. On December 23, 2019, we exercised this option to
increase the total commitments under the Credit Facility and
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entered into the Amendment to the Credit Agreement. The Amended Credit Agreement
provides for a $50.0 million letter of credit sub-facility and a $10.0 million
swing loan sub-facility.
The proceeds of the loans under the Amended Credit Agreement may be used to pay
the fees, costs and expenses incurred in connection with the Amended Credit
Agreement and for working capital and general corporate purposes. The Credit
Facility matures, and all outstanding loans become due and payable, on March 5,
2024. Availability under the Credit Facility is based upon periodic borrowing
base certifications valuing certain inventory and accounts receivable, as
reduced by certain reserves. The Credit Facility is secured by first-priority
security interest (subject to certain exceptions) in inventory, certain related
assets, specified deposit accounts, and certain other accounts in certain
domestic subsidiaries.
Loans under the Amended Credit Agreement bear interest, at our option, at either
a rate based on LIBOR for the applicable interest period or a base rate, in each
case plus a margin. The margin ranges from 2.00% to 2.50% for LIBOR rate loans
and 1.00% to 1.50% for base rate loans, depending on the utilization of the
Credit Facility. The commitment fee payable on the unused portion of the Credit
Facility ranges from 0.375% to 0.625% per annum, also based on the current
utilization of the Credit Facility. Letters of credit issued pursuant to the
Credit Facility will accrue a fee at a per annum rate equal to the applicable
LIBOR rate margin times the average amount of the letter of credit usage during
the immediately preceding quarter in addition to the fronting fees, commissions
and other fees.
In January 2021, we repaid in full the then outstanding principal balance of
$77.0 million. For more information regarding the Credit Facility, see Note 12,
"Debt" to the Notes to Consolidated Financial Statements.
In May 2019, we entered into a financing assistance agreement with a third-party
contract manufacturer whereby the contract manufacturer agreed to provide
funding of up to $40.0 million to cover severance, retention and other costs
associated with the transfer of our manufacturing operations in Berlin, Germany
to the contract manufacturer. The funding was secured against certain foreign
assets, carried a fixed interest rate of 6% and repayable in 12 months from the
date of each draw down. In October 2020, the payment terms were amended to
extend the due date by six months, set the fixed interest rate at 3% during such
period, and allowed for the phased transfer of inventory to offset the amount
due. In April 2021, we repaid the entire outstanding principal balance and
accrued interest of $24.6 million and $1.8 million, respectively.
In September 2018, we issued the 2024 Notes, which will mature on September 1,
2024, unless earlier repurchased, redeemed or converted. Interest is payable
semi-annually in arrears on March 1 and September 1 of each year, which
commenced on March 1, 2019. The net proceeds from the 2024 Notes issuance were
approximately $391.4 million, of which approximately $48.9 million was used to
pay the cost of the Capped Calls. We also used a portion of the remaining net
proceeds to fund the cash portion of the purchase price of the Acquisition,
including fees and expenses relating thereto, and intend to use the remaining
net proceeds for general corporate purposes.
Upon conversion, it is our intention to pay cash equal to the lesser of the
aggregate principal amount or the conversion value of the 2024 Notes. For any
remaining conversion obligation, we intend to pay or deliver, as the case may
be, cash, shares of our common stock, or a combination of cash and shares of our
common stock, at our election. As of June 26, 2021, long-term debt, net,
included $317.5 million for 2024 Notes which represents the liability component
of the $402.5 million principal balance, net of $85.0 million of unamortized
debt discount and debt issuance costs. The debt discount and debt issuance costs
are currently being amortized over the remaining term until maturity of the 2024
Notes on September 1, 2024. To the extent that the holders of the 2024 Notes
request conversion during an early conversion window, we may require funds for
repayment of such 2024 Notes prior to their maturity date.
As of June 26, 2021, contractual obligations related to the 2024 Notes are
payments of $4.3 million due for the remainder of 2021, $8.6 million due each
year from 2022 through 2023 and $411.1 million due in 2024. These amounts
represent principal and interest cash payments over the term of the 2024 Notes.
Any future redemption or conversion of the Notes could impact the amount or
timing of our cash payments. For more information regarding the 2024 Notes, see
Note 12, "Debt" to the Notes to Consolidated Financial Statements.
As of June 26, 2021, we had $219.7 million of cash including $101.3 million of
cash held by our foreign subsidiaries. Our policy with respect to undistributed
foreign subsidiaries' earnings is to consider those earnings to be indefinitely
reinvested. As a result of the enactment in the United States of the Tax Cuts
and Jobs Act of 2017 (the "2017 Tax Act"), if and when funds are actually
distributed in the form of dividends or otherwise, we expect minimal tax
consequences, except for foreign withholding taxes, which would be applicable in
some jurisdictions.
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Off-Balance Sheet Arrangements
As of June 26, 2021, we did not have any relationships with unconsolidated
entities or financial partnerships, such as entities often referred to as
structured finance or special purpose entities, which would have been
established for the purpose of facilitating off-balance sheet arrangements or
other contractually narrow or limited purposes.
Item 3.Quantitative and Qualitative Disclosures about Market Risk
Market risk represents the risk of loss that may impact our financial position
due to adverse changes in financial market prices and rates. Our market risk
exposure is primarily a result of fluctuations in foreign currency exchange
rates and interest rates. We assess these risks on a regular basis and have
established policies that are designed to protect against, but that cannot
entirely eliminate the adverse effects of these and other potential exposures.
Foreign Currency Exchange Rate Risk
There have been no material changes to the foreign currency exchange rate risk
previously disclosed in Part II, Item 7A, "Quantitative and Qualitative
Disclosures About Market Risk," of our Annual Report on Form 10-K for the fiscal
year ended December 26, 2020.
Interest Rate Risk
There have been no material changes to the interest rate risk previously
disclosed in Part II, Item 7A, "Quantitative and Qualitative Disclosures About
Market Risk," of our Annual Report on Form 10-K for the fiscal year ended
December 26, 2020.
Market Risk and Market Interest Risk
For a discussion of our exposure to market risk and market interest risk related
to the 2027 Notes and 2024 Notes, see "Quantitative and Qualitative Disclosures
About Market Risk" in Part II, Item 7A of our Annual Report on Form 10-K for the
fiscal year ended December 26, 2020. There have been no other material changes
to our market risk during the six months ended June 26, 2021.
Item 4.Controls and Procedures
Evaluation of Disclosure Controls and Procedures
An evaluation was performed by our management, with the participation of our CEO
and our CFO, of the effectiveness of our disclosure controls and procedures (as
defined in Rules 13a-15(e) and 15d -15(e) under the Exchange Act). Disclosure
controls and procedures are designed to ensure that information required to be
disclosed in our reports filed or submitted under the Exchange Act is recorded,
processed, summarized and reported within the time periods specified in the
SEC's rules and forms and that such information is accumulated and communicated
to management, including our CEO and CFO, as appropriate, to allow timely
decisions regarding required disclosure. Based on this evaluation, our CEO and
CFO concluded that, as of June 26, 2021, our disclosure controls and procedures
are effective.
Inherent Limitations on Effectiveness of Controls
Our management, including the CEO and CFO, does not expect that our disclosure
controls or our internal controls over financial reporting will prevent or
detect all errors and all fraud. A control system, no matter how well designed
and operated, can provide only reasonable, not absolute, assurance that the
control system's objectives will be met. The design of a control system must
reflect the fact that there are resource constraints, and the benefits of
controls must be considered relative to their costs. Further, because of the
inherent limitations in all control systems, no evaluation of controls can
provide absolute assurance that misstatements due to error or fraud will not
occur or that all control issues and instances of fraud, if any, have been
detected. The design of any system of controls is based in part on certain
assumptions about the likelihood of future events, and there can be no assurance
that any design will succeed in achieving its stated goals under all potential
future conditions. Projections of any evaluation of the effectiveness of
controls to future periods are subject to risks. Over time, controls may become
inadequate because of changes in business conditions or deterioration in the
degree of compliance with policies or procedures.
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Changes in Internal Control over Financial Reporting
During the three months ended June 26, 2021 there were no changes in our
internal control over financial reporting which were identified in connection
with management's evaluation required by paragraph (d) of Rules 13a-15 and
15d-15 under the Exchange Act, that have materially affected, or are reasonably
likely to materially affect, our internal control over financial reporting. We
are continually monitoring and assessing the COVID-19 pandemic situation to
minimize the impact, if any, on the design and operating effectiveness on our
internal controls.



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