Biggest changeResults of Operations Years Ended April 27, 2024 and April 29, 2023 63 The following table sets forth information derived from our consolidated statements of operations expressed as a percentage of total revenue: Year Ended April 27, 2024 April 29, 2023 Revenue: Product sales 75.2 % 76.8 % Product engineering services 10.3 % 5.9 % IP license 14.5 % 17.3 % Total revenue 100.0 % 100.0 % Cost of revenue: Cost of product sales revenue 36.5 % 40.8 % Cost of product engineering services revenue 1.2 % 0.5 % Cost of IP license revenue 0.4 % 1.0 % Total cost of revenue 38.1 % 42.3 % Gross margin 61.9 % 57.7 % Operating expenses: Research and development 49.5 % 41.7 % Selling, general and administrative 31.2 % 26.2 % Impairment charges 0.4 % 1.3 % Total operating expenses 81.1 % 69.2 % Operating loss (19.2) % (11.5) % Other income (expense), net 7.4 % 1.8 % Loss before income taxes (11.8) % (9.7) % Provision (benefit) for income taxes 2.9 % (0.7) % Net loss (14.7) % (9.0) % Comparison of Years Ended April 27, 2024 and April 29, 2023 Revenue Year Ended % Change April 27, 2024 April 29, 2023 (in thousands, except percentages) Product sales $ 145,048 $ 141,475 2.5 % Product engineering services 19,898 10,780 84.6 % IP license 28,024 31,939 (12.3) % Total revenue $ 192,970 $ 184,194 4.8 % Revenue for fiscal 2024 increased by $8.8 million primarily due to increases in product engineering services revenue of $9.1 million.
Biggest changeResults of Operations Years Ended May 3, 2025 and April 27, 2024 64 The following table sets forth information derived from our consolidated statements of operations expressed as a percentage of total revenue: Year Ended May 3, 2025 April 27, 2024 Revenue: Product sales 94.4 % 75.2 % Product engineering services 2.8 % 10.3 % IP license 2.9 % 14.5 % Total revenue 100.0 % 100.0 % Cost of revenue: Cost of product sales revenue 34.9 % 36.5 % Cost of product engineering services revenue 0.3 % 1.2 % Cost of IP license revenue — % 0.4 % Total cost of revenue 35.2 % 38.1 % Gross margin 64.8 % 61.9 % Operating expenses: Research and development 33.4 % 49.5 % Selling, general and administrative 22.6 % 31.2 % Impairment charges 0.3 % 0.4 % Total operating expenses 56.3 % 81.1 % Operating income (loss) 8.5 % (19.2) % Other income (expense), net 4.1 % 7.4 % Income (loss) before income taxes 12.6 % (11.8) % Provision (benefit) for income taxes 0.7 % 2.9 % Net income (loss) 11.9 % (14.7) % Comparison of Years Ended May 3, 2025 and April 27, 2024 Revenue Year Ended % Change May 3, 2025 April 27, 2024 (in thousands, except percentages) Product sales $ 412,177 $ 145,048 184.2 % Product engineering services 12,122 19,898 (39.1) % IP license 12,476 28,024 (55.5) % Total revenue $ 436,775 $ 192,970 126.3 % Revenue for fiscal 2025 increased by $243.8 million compared to fiscal 2024 primarily due to increases in product sales revenue of $267.1 million, offset by reductions in product engineering services revenue and IP license revenue of $7.8 million and $15.5 million, respectively.
In the event that we need to borrow funds or issue additional equity, we cannot be assured that any such additional financing will be available on terms acceptable to us, if at all. If we are unable to raise additional capital when we need it, our business, results of operations and financial condition would be adversely affected.
In the event that we need to borrow funds or issue additional equity, we 67 cannot be assured that any such additional financing will be available on terms acceptable to us, if at all. If we are unable to raise additional capital when we need it, our business, results of operations and financial condition would be adversely affected.
The cash inflows from operating activities for fiscal 2024 were primarily due to a net loss of $28.4 million adjusted for the following non-cash items: share-based compensation expense of $39.0 million, depreciation and amortization of $13.8 million, and other non-cash items of $9.0 million. This was offset by $0.7 million of cash outflows for working capital purposes.
The cash inflows from operating activities for fiscal 2024 were primarily due to $28.4 million of net loss adjusted for the following non-cash items: share-based compensation expense of $39.0 million, depreciation and amortization of $13.8 million and other non-cash items of $9.0 million. This was offset by $0.7 million of cash outflows for working capital purposes.
Product Sales - We transact with customers primarily pursuant to standard purchase orders for delivery of products and generally allow customers to cancel or change purchase orders within limited 61 notice periods prior to the scheduled shipment date. We offer standard performance warranties of twelve months after product delivery and offer limited product return rights to certain distributors.
Product Sales - We transact with customers primarily pursuant to standard purchase orders for delivery of products and generally allow customers to cancel or change purchase orders within limited notice periods prior to the scheduled shipment date. We offer standard performance warranties of twelve months after product delivery and offer limited product return rights to certain distributors.
We enter into perpetual semiconductor IP license agreements that have a fixed fee, whereby licensees pay a fixed fee for the right to incorporate our IP technologies into the licensee’s products. The IP license agreements do not typically grant the customer the right to terminate for convenience.
We enter into perpetual semiconductor IP license 62 agreements that have a fixed fee, whereby licensees pay a fixed fee for the right to incorporate our IP technologies into the licensee’s products. The IP license agreements do not typically grant the customer the right to terminate for convenience.
Provision for Income Taxes Current income tax expense or benefit represents the amount of income taxes expected to be payable or refundable for the current year. Under this method, deferred income tax assets and liabilities are determined based on differences between the financial statement reporting and tax bases of assets and liabilities and net operating loss and credit carryforward.
Provision for Income Taxes Current income tax expense or benefit represents the amount of income taxes expected to be payable or refundable for the current year. Under this method, deferred income tax assets and liabilities are determined based on differences between the financial statement reporting and tax bases of assets and liabilities and net operating loss and credit carryforwards.
When we determine that it is probable that a tranche of the warrant will vest and we recognize the related revenue, the grant date 68 fair value of the associated tranche will be recognized in shareholders’ equity and the underlying expense will be amortized as a reduction of revenue in proportion to the amount of related revenue recognized.
When we determine that it is probable that a tranche of the warrant will vest and we recognize the related revenue, the grant date 69 fair value of the associated tranche will be recognized in shareholders’ equity and the underlying expense is amortized as a reduction of revenue in proportion to the amount of related revenue recognized.
Factors that could cause or contribute to such differences include those identified below and those discussed in the section titled “Risk Factors.” A discussion regarding our financial condition and our results of operations for the fiscal year ended April 27, 2024 compared to the fiscal year ended April 29, 2023 is presented below.
Factors that could cause or contribute to such differences include those identified below and those discussed in the section titled “Risk Factors.” A discussion regarding our financial condition and our results of operations for the fiscal year ended May 3, 2025 compared to the fiscal year ended April 27, 2024 is presented below.
Cash Flows Used in Investing Activities Net cash used in investing activities of $249.5 million in fiscal 2024 was attributable to purchases of property and equipment of $15.7 million and investments in certificates of deposit of $169.8 million, partially offset by maturities of investment in certificates of deposit of $403.6 million.
Net cash used in investing activities of $249.5 million for fiscal 2024 was attributable to purchases of property and equipment of $15.7 million and investment in certificates of deposit of $403.6 million, partially offset by maturities of investment in certificates of deposits of $169.8 million.
Components of Our Operating Results Revenue Our revenues consist of sale of our products, licensing of and providing engineering services related to our IP and providing product engineering services. Product sales primarily consists of shipment of our ICs and AEC products. IP license revenue includes fees from licensing of our SerDes IP and related engineering and support fees and royalties.
Components of Our Operating Results Revenue Our revenues consist of sales of our products, licensing of and providing engineering services related to our IP and providing product engineering services. Product sales primarily consist of shipments of our ICs and AEC products. IP license revenue includes fees from licensing of our SerDes IP and related engineering and support fees and royalties.
A discussion regarding our results of operations for the fiscal year ended April 29, 2023 compared to the fiscal year ended April 30, 2022 can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” of our Annual Report on Form 10-K for the fiscal year ended April 29, 2023, filed with the SEC on June 23, 2023.
A discussion regarding our results of operations for the fiscal year ended April 27, 2024 compared to the fiscal year ended April 29, 2023 can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” of our Annual Report on Form 10-K for the fiscal year ended April 27, 2024 , filed with the SEC on June 24, 2024.
Cash Flows Provided by Financing Activities Net cash provided by financing activities of $175.3 million for fiscal 2024 was primarily attributable to $173.4 million proceeds from issuance of ordinary shares in connection our follow-on public offering, net of offering costs, $7.1 million in proceeds from exercises of employee share options and the issuance of 67 shares under our employee share purchase plan, offset by $3.1 million in payments for long-term technology license obligations.
Net cash provided by financing activities of $175.3 million for fiscal 2024 was primarily attributable to $173.4 million proceeds from issuance of ordinary shares in connection with our follow-on public offering, net of offering costs, $7.1 million in proceeds from exercises of employee share options and the issuance of shares under our employee share purchase plan, offset by $3.1 million in payments for long-term technology license obligations and $2.2 million tax withheld related to RSU settlement.
The increase was primarily due to the establishment of a full valuation allowance to offset U.S. deferred tax assets in fiscal 2024. Liquidity and Capital Resources Our activities consist primarily of selling our products, licensing our IP, providing IP customization services and conducting research and development of our products and technology.
The decrease was primarily due to the tax expense related to the establishment of a full valuation allowance in the U.S. in fiscal 2024. Liquidity and Capital Resources Our activities consist primarily of selling our products, licensing our IP, providing IP customization services and conducting research and development of our products and technology.
The accounting policies discussed in this section are those that we consider to be the most critical. We consider an accounting policy to be critical if the policy is subject to a material level of judgment and if changes in those judgments are reasonably likely to materially impact our results.
We consider an accounting policy to be critical if the policy is subject to a material level of judgment and if changes in those judgments are reasonably likely to materially impact our results.
A relatively small number customers have historically accounted for and continue to account for a significant portion of our revenue. We report revenue by customer in our financial statement disclosure based on the contracting parties who place purchase orders or sign revenue contracts with us.
We work closely and have engagements with industry-leading companies across these segments. A relatively small number customers have historically accounted for and continue to account for a significant portion of our revenue. We report revenue by customer in our financial statement disclosure based on the contracting parties who place purchase orders or sign revenue contracts with us.
Impairment Charges Year Ended % Change April 27, 2024 April 29, 2023 (in thousands, except percentages) Impairment charges $ 765 $ 2,407 (68.2) % % of total revenue 0.4 % 1.3 % Impairment charges incurred in fiscal 2024 and 2023 were primarily related to the impairments on property and equipment, and third-party IP license that did not reach production qualification.
Impairment Charges Year Ended % Change May 3, 2025 April 27, 2024 (in thousands, except percentages) Impairment charges $ 873 $ 765 14.1 % % of total revenue 0.3 % 0.4 % Impairment charges incurred in fiscal 2025 and 2024 were primarily related to the impairments of property and equipment and third-party IP license that did not reach production qualification.
Over time, we expect to generate an increased proportion of our revenue from sales of our products. We expect to see a long-term benefit from improvements in our operating leverage as our business continues to gain scale. We utilize a fabless business model, working with a network of third parties to manufacture, assemble and test our connectivity products.
We expect to see a long-term benefit from improvements in our operating leverage as our business continues to gain scale. 61 We utilize a fabless business model, working with a network of third parties to manufacture, assemble and test our connectivity products.
This was offset by a decrease in inventory of $15.8 million primarily driven by tightened production management and increased product sales compared to fiscal 2023. Net cash used in operating activities was $24.6 million for fiscal 2023.
This was offset by a decrease in inventory of $15.8 million primarily driven by tightened production management and increased product sales compared to fiscal 2023.
As of April 27, 2024 and April 29, 2023, we had cash and cash equivalents of $66.9 million and $108.6 million, respectively, and working capital of $485.6 million and $297.2 million, respectively. Our principal use of cash is to fund our operations and invest in research and development to support our growth.
As of May 3, 2025 and April 27, 2024, we had cash and cash equivalents of $236.3 million and $66.9 million, respectively, and working capital of $605.8 million and $485.6 million, respectively. Our principal use of cash is to fund our operations and invest in research and development to support our growth.
Our intellectual property (IP) solutions consist primarily of SerDes IP licensing. Data generation has increased dramatically over the past ten years, creating new and complicated challenges in both circuit and system design.
Our product families include integrated circuits (ICs), Active Electrical Cables (AECs) and SerDes Chiplets. Our intellectual property (IP) solutions consist primarily of SerDes IP licensing. Data generation has increased dramatically over the past ten years, creating new and complicated challenges in both circuit and system design.
We partner with Microsoft on our HiWire Switch AEC and open-source implementation that helps realize Microsoft’s vision for a highly reliable network-managed dual-Top-of-Rack (ToR) architecture (a network architecture design in which computing equipment located within the same or an adjacent rack are, for redundancy, connected to two in-rack network switches, which are, in turn, connected to aggregation switches via fiber optic cables), overcome complex and slow legacy enterprise approaches, simplify deployment and improve connection reliability in the data center. 59 The multibillion-dollar data infrastructure market that we serve is driven largely by hyperscale data centers (hyperscalers), as well as general compute, AI/ML infrastructure, multi-service operators (MSOs), and mobile network operators (MNOs).
We partner with Microsoft on our HiWire Switch AEC and open-source implementation that helps realize Microsoft’s vision for a highly reliable network-managed dual-Top-of-Rack (ToR) architecture (a network architecture design in which computing equipment located within the same or an adjacent rack are, for redundancy, connected to two in-rack network switches, which are, in turn, connected to aggregation switches via fiber optic cables), overcome complex and slow legacy enterprise approaches, simplify deployment and improve connection reliability in the data center.
The increase was due primarily to a $2.6 million increase in personnel costs as a result of higher selling, general and administrative headcount, a $7.0 million increase in share-based compensation expense driven by increased amortization expense from new equity awards granted to employees, a $1.1 million increase in legal expenses and a $0.6 million increase in software licenses.
The increase was due primarily to a $17.7 million increase in share-based compensation expense driven by increased amortization expense from new equity awards granted to employees, a $10.3 million increase in personnel costs as a result of higher selling, general and administrative headcount and a $5.6 million increase in external consultation fees relating to general and administrative expenses.
Our connectivity solutions are optimized for optical and electrical Ethernet applications, including the 100G (or Gigabits per second), 200G, 400G, 800G and emerging 1.6T (or Terabits per second) markets. Our products are based on our Serializer/Deserializer (SerDes) and Digital Signal Processor (DSP) technologies. Our product families include integrated circuits (ICs), Active Electrical Cables (AECs) and SerDes Chiplets.
Our connectivity solutions are optimized for optical and electrical Ethernet and PCIe applications, including the 100G (or Gigabits per second), 200G, 400G, 800G and emerging 1.6T (or Terabits per second) ethernet markets and the 32G PCIe5 and upcoming 64G PCIe6 markets. Our products are based on our Serializer/Deserializer (SerDes) and Digital Signal Processor (DSP) technologies.
The demands for increased bandwidth, improved power and cost efficiency and heightened security have simultaneously and dramatically expanded as work, education and entertainment have rapidly digitized across myriad endpoint users. We design, market and sell both product and IP solutions. We help define industry conventions and standards within the markets we target by collaborating with technology leaders and standards bodies.
The demands for increased bandwidth, improved power and cost efficiency and heightened security have simultaneously and dramatically expanded as work, education and entertainment have rapidly digitized across myriad endpoint users. We design, market and sell both product, software and IP solutions.
Provision (benefit) for Income Taxes Year Ended % Change April 27, 2024 April 29, 2023 (in thousands, except percentages) Provision (benefit) for income taxes $ 5,624 $ (1,367) (511.4) % % of total revenue 2.9 % (0.7) % Provision for income taxes in fiscal 2024 increased by $7.0 million compared to the same period in fiscal 2023.
Provision for Income Taxes Year Ended % Change May 3, 2025 April 27, 2024 (in thousands, except percentages) Provision for income taxes $ 2,687 $ 5,624 (52.2) % % of total revenue 0.7 % 2.9 % Provision for income taxes in fiscal 2025 decreased by $2.9 million compared to the same period in fiscal 2024.
Actual results may differ from those estimates and such differences may be material to the financial statements. We continue to monitor and assess our critical estimates in light of developments, and as events continue to evolve and additional information becomes available, our estimates may change materially in future periods.
We continue to monitor and assess our critical estimates in light of developments, and as events continue to evolve and additional information becomes available, our estimates may change materially in future periods.
Research and Development Year Ended % Change April 27, 2024 April 29, 2023 (in thousands, except percentages) Research and development $ 95,531 $ 76,774 24.4 % % of total revenue 49.5 % 41.7 % Research and development expenses for fiscal 2024 increased by $18.8 million compared to fiscal 2023.
Research and Development Year Ended % Change May 3, 2025 April 27, 2024 (in thousands, except percentages) Research and development $ 145,994 $ 95,531 52.8 % % of total revenue 33.4 % 49.5 % Research and development expenses for fiscal 2025 increased by $50.5 million compared to fiscal 2024.
Geographically, 31% of our total revenue in both fiscal 2024 and 2023 was generated from customers in North America, and 69% of our total revenue in both fiscal 2024 and 2023 was generated from customers in the rest of the world, primarily in Asia. During fiscal 2024 and 2023, we generated $28.4 million and $16.5 million of net loss, respectively.
Geographically, 15% and 31% of our total revenue in fiscal 2025 and 2024 was generated from customers in North America, and 85% and 69% of our total revenue in fiscal 2025 and 2024 was generated from customers in the rest of the world, primarily in Asia.
As a supplement to our financial statement footnote disclosure, and to provide further insight into our end customer concentration, the following table summarizes our revenue by customer as a percentage of total revenue based on end customer profile, rather than based on the contracting parties who place purchase orders or sign revenue contracts with us: Year Ended April 27, 2024 April 29, 2023 Revenue: Customer Z 26 % 55 % Customer Y 20 % * Customer B 15 % * Customer C * 12 % Customer E * 13 % * Less than 10% of total revenue. 60 Our Business Model We are a product-focused business with a strong foundation in IP, pioneering comprehensive connectivity solutions that deliver bandwidth, scalability, and end-to-end signal integrity for next-generation platforms.
As a supplement to our financial statement footnote disclosure, and to provide further insight into our end customer concentration, the following table summarizes our revenue by customer as a percentage of total revenue based on end customer profile, rather than based on the contracting parties who place purchase orders or sign revenue contracts with us: Year Ended May 3, 2025 April 27, 2024 Revenue: Customer E 63 % 20 % Customer F * 26 % Customer B * 15 % * Less than 10% of total revenue.
This was offset by increases in accounts payable of $3.8 million and accrued expenses, compensation and other liabilities of $0.5 million due to amounts payable relating to increased purchases of inventory to support growing demand for our products.
This was offset by increases in accounts payable of $41.9 million and accrued compensation and other liabilities of $15.9 million due to increased purchases of inventory to support growing demand for our products. Net cash used in operating activities was $32.7 million for fiscal 2024.
Product sales and product engineering services revenue comprised 85% and 83% of our total revenue in fiscal 2024 and 2023, respectively, and IP license and IP license engineering services revenue represented 15% and 17% of our total revenue in fiscal 2024 and 2023, respectively.
During fiscal 2025 and 2024, we generated $436.8 million and $193.0 million in total revenue, respectively. Product sales and product engineering services revenue comprised 97% and 85% of our total revenue in fiscal 2025 and 2024, respectively, and IP license revenue represented 3% and 15% of our total revenue in fiscal 2025 and 2024, respectively.
Net cash used in investing activities of $130.9 million in fiscal 2023 was attributable to purchases of property and equipment of $21.7 million and investment in certificates of deposit of $159.2 million, partially offset by maturities of investment in certificates of deposits of $50.0 million.
Cash Flows Provided by (Used in) Investing Activities Net cash provided by investing activities of $112.0 million for fiscal 2025 was attributable to maturities of investment in certificates of deposit of $406.8 million, partially offset by purchases of property and equipment of $36.1 million and investments in certificates of deposit of $258.7 million.
The preparation of financial statements in accordance with GAAP requires certain estimates, assumptions and judgments to be made that may affect our consolidated financial statements. Accounting policies that have a significant impact on our results are described in Note 2 to our consolidated financial statements included elsewhere in this filing.
Critical Accounting Estimates We prepare our financial statements in conformity with GAAP. The preparation of financial statements in accordance with GAAP requires certain estimates, assumptions and judgments to be made that may affect our consolidated financial statements.
Estimates are used for, but not limited to, write-down for excess and obsolete inventories, the SSP for each distinct performance obligation included in customer contracts with multiple performance obligations, variable consideration from revenue contracts, determination of the fair value of share awards and customer warrant, valuation of ordinary shares and the realization of tax assets and estimates of tax reserves.
Estimates are used for, but not limited to, write-down for excess and obsolete inventories, variable consideration from revenue contracts, determination of the fair value of share awards, and the realization of tax assets and estimates of tax reserves. Actual results may differ from those estimates and such differences may be material to the financial statements.
We believe that continued investments in our products are important to our future growth and, as a result, we expect our research and development expenses to continue to increase in absolute dollars. 62 Selling, General and Administrative Expenses Selling expenses consist of personnel costs including salaries, benefits and share-based compensation expense, field application engineering support, samples to customers, shipping costs and travel and entertainment costs.
Selling, General and Administrative Expenses Selling expenses consist of personnel costs including salaries, benefits and share-based compensation expense, field application engineering support, samples to customers, shipping costs and travel and entertainment costs.
The following table summarizes our cash flows for the periods indicated. 66 Year Ended April 27, 2024 April 29, 2023 (in thousands) Net cash provided by (used in) operating activities $ 32,737 $ (24,615) Net cash used in investing activities $ (249,485) $ (130,941) Net cash provided by financing activities $ 175,276 $ 4,885 Cash Flows Provided by (Used in) Operating Activities Net cash provided by operating activities was $32.7 million for fiscal 2024.
Year Ended May 3, 2025 April 27, 2024 (in thousands) Net cash provided by operating activities $ 65,083 $ 32,737 Net cash provided by (used in) investing activities $ 111,990 $ (249,485) Net cash provided by (used in) financing activities $ (7,728) $ 175,276 Cash Flows Provided by Operating Activities Net cash provided by operating activities was $65.1 million for fiscal 2025.
When SSPs are not directly observable, we use the adjusted market assessment approach or residual approach, if applicable. We also consider the constraint on estimates of variable consideration when estimating the total transaction price. Our policy is to record revenue net of any applicable sales, use or excise taxes.
Where an arrangement includes multiple performance obligations, the transaction price is allocated to these on a relative standalone selling price (SSP) basis. We also consider the constraint on estimates of variable consideration when estimating the total transaction price. Our policy is to record revenue net of any applicable sales, use or excise taxes.
We also develop IP solutions to address the specific and complex needs of our customers. We earn revenue from these IP solutions primarily through licensing fees and royalties. In addition to product sales and IP license revenue, we also generated revenue from providing engineering services as part of our product and license arrangements with certain customers.
In addition to product sales and IP license revenue, we also generated revenue from providing engineering services as part of our product and license arrangements with certain customers. Over time, we expect to generate an increased proportion of our revenue from sales of our products.
Once developed, these tailored solutions can generally be broadly leveraged across our portfolio and we are able to sell the part or license the IP to the broader market. During fiscal 2024 and 2023, we generated $193.0 million and $184.2 million in total revenue, respectively.
We develop standard solutions we can sell broadly to our end markets and also develop tailored solutions designed to address specific customer needs. Once developed, these tailored solutions can generally be broadly leveraged across our portfolio and we are able to sell the part or license the IP to the broader market.
The cash outflows from working capital for fiscal 2023 were primarily driven by (a) an increase in accounts receivable of $20.0 million primarily due to increased sales in the fiscal 2023 compared to fiscal 2022 and timing of collection; (b) an increase in inventory of $24.4 million to better support unfulfilled backlog and related new product ramps; (c) and an increase in contract assets of $1.6 million primarily driven by certain IP licensing and engineering services arrangements where certain billing milestones had not yet been reached but the criteria for revenue had been met.
The cash outflows from working capital for fiscal 2025 were primarily driven by (a) an increase in accounts receivable of $102.5 million primarily due to increased sales in the fiscal 2025 compared to fiscal 2024 and timing of collection; (b) and an increase in inventory of $70.5 million to support unfulfilled backlog and related new product ramps.
We sell our products to hyperscalers, original equipment manufacturers (OEMs), original design manufacturers (ODMs) and optical module manufacturers, as well as to companies in the enterprise and HPC markets. We work closely and have engagements with industry-leading companies across these segments.
We expect that as our products are more widely adopted and as our number of customers increase, customer concentration will decrease. We sell our products to hyperscalers, original equipment manufacturers (OEMs), original design manufacturers (ODMs) and optical module manufacturers, as well as to companies in the enterprise and HPC markets.
The increase was due primarily to a $7.0 million increase in personnel costs primarily as a result of new hires for product development, an $8.0 million increase in share-based compensation expense driven by increased amortization expense from new equity awards granted to employees, a $2.2 million increase in depreciation expense driven by increased computer equipment and software and laboratory equipment utilized in research and development activities, and a $1.5 million increase in information technology and facilities costs.
The increase was due primarily to a $20.6 million increase in share-based compensation expense driven by increased amortization expense from new equity awards granted to employees, a $13.3 million increase in personnel costs primarily as a result of new hires for product development, a $10.0 million increase in design activities and higher engineering activities relating to testing and laboratory supplies for new product development and a $3.6 million increase in depreciation expense driven by increased computer equipment and software and laboratory equipment utilized in research and development activities. 66 Selling, General and Administrative Year Ended % Change May 3, 2025 April 27, 2024 (in thousands, except percentages) Selling, general and administrative $ 98,918 $ 60,193 64.3 % % of total revenue 22.6 % 31.2 % Selling, general and administrative expenses for fiscal 2025 increased by $38.7 million compared to fiscal 2024.
Revenue Recognition We recognize revenue upon transfer of control of promised goods and services in an amount that reflects the consideration we expect to receive in exchange for those goods and services. Where an arrangement includes multiple performance obligations, the transaction price is allocated to these on a relative standalone selling price (SSP) basis.
Revenue Recognition We recognize revenue upon transfer of control of promised goods and services in an amount that reflects the consideration we expect to receive in exchange for those goods and services. Our policy is to record revenue net of any applicable sales, use or excise taxes.
We derive the substantial majority of our revenue from a limited number of customers. We anticipate we will continue to derive a significant portion of our revenue from a limited number of customers for the foreseeable future. We expect that as our products are more widely adopted and as our number of customers increase, customer concentration will decrease.
During fiscal 2025 and 2024, we generated $52.2 million of net income and $28.4 million of net loss, respectively. We derive the substantial majority of our revenue from a limited number of customers. We anticipate we will continue to derive a significant portion of our revenue from a limited number of customers for the foreseeable future.
The cash outflows from operating activities for fiscal 2023 were primarily due to $16.5 million of net loss and $50.4 million of cash outflows for working capital purposes, partially offset by $42.4 million of non-cash items.
The cash inflows from operating activities for fiscal 2025 were primarily due to net income of $52.2 million adjusted for the following non-cash items: share-based compensation expense of $77.4 million, depreciation and amortization of $21.9 million and other non-cash items of $22.0 million. This was offset by $108.4 million of cash outflows for working capital purposes.
Gross Profit and Gross Margin Year Ended % Change April 27, 2024 April 29, 2023 (in thousands, except percentages) Gross profit $ 119,431 $ 106,194 12.5 % Gross margin 61.9 % 57.7 % Gross margin increased by 4.2 percentage points in fiscal 2024 primarily driven by (a) an increase in our high-margin product engineering services revenue as a percentage of overall revenue; and (b) an increase of product sales gross margin as noted above.
Gross Profit and Gross Margin Year Ended % Change May 3, 2025 April 27, 2024 (in thousands, except percentages) Gross profit $ 282,909 $ 119,431 136.9 % Gross margin 64.8 % 61.9 % Gross margin increased by 2.9 percentage points in fiscal 2025 primarily driven by our product sales business gaining scale from the improvements in our operating leverage.
We contract with a variety of manufacturing partners to build our products based on our proprietary SerDes and DSP technologies. We develop standard solutions we can sell broadly to our end markets and also develop tailored solutions designed to address specific customer needs.
We help define industry conventions and standards within the markets we target by collaborating with technology leaders and standards bodies. We contract with a variety of manufacturing partners to build our products based on our proprietary SerDes and DSP technologies.
As a result, the product mix was more diverse in fiscal 2024 than in fiscal 2023. 64 Cost of Revenue Year Ended % Change April 27, 2024 April 29, 2023 (in thousands, except percentages) Cost of product sales revenue $ 70,498 $ 75,143 (6.2) % Cost of product engineering services revenue 2,225 972 128.9 % Cost of IP license revenue 816 1,885 (56.7) % Total cost of revenue $ 73,539 $ 78,000 (5.7) % Cost of revenue decreased by $4.5 million primarily due to $4.6 million decrease in cost of product sales revenue.
Cost of Revenue Year Ended % Change May 3, 2025 April 27, 2024 (in thousands, except percentages) Cost of product sales revenue $ 152,381 $ 70,498 116.1 % Cost of product engineering services revenue 1,314 2,225 (40.9) % Cost of IP license revenue 171 816 (79.0) % Total cost of revenue $ 153,866 $ 73,539 109.2 % Total cost of revenue increased by $80.3 million primarily due to an $81.9 million increase in cost of product sales revenue.
Impairment Charges Impairment charges consist primarily of impairment on property and equipment for assets no longer in service. Other Income and Expense, Net Other income and expense, net consists primarily of interest income from significant financing components related to IP license revenue contracts, and foreign exchange gains and losses.
Impairment Charges Impairment charges consist primarily of impairment of property and equipment and third-party IP licenses for assets no longer in service or for future products that did not reach production qualification. 63 Other Income and Expense, Net Other income and expense, net consists primarily of interest income from cash and cash equivalents and short-term investments and interest expense relating to certain purchases of computer equipment and software.
Net cash provided by financing activities of $4.9 million in fiscal 2023 was primarily attributable to $5.5 million in proceeds from exercises of employee share options and the issuance of shares under our employee share purchase plan. Critical Accounting Estimates We prepare our financial statements in conformity with GAAP.
Purchases of property and equipment primarily relate to mask sets purchases for new products introduced or in process of being introduced and computer equipment and software used for research and development purposes. 68 Cash Flows Provided by (Used in) Financing Activities Net cash used in financing activities of $7.7 million for fiscal 2025 was primarily attributable to $9.3 million tax withheld related to RSU settlement and $6.3 million in payments for long-term technology license obligations, offset by $7.8 million in proceeds from exercises of employee share options and the issuance of shares under our employee share purchase plan.
The increase in product engineering services revenue was primarily due to Credo entering into two new non-recurring engineering contracts, one of which was entered into in fiscal 2024 and which saw significant ramp-up in the year, resulting in revenue recognition of $15.5 million.
The decrease in product engineering services revenue was due to the completion of certain product engineering services arrangements resulting in a decrease in engineering time of 55%. 65 The decrease in IP license revenue was primarily due to fewer contracts entered into during fiscal 2025 as compared to fiscal year 2024.