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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

Commission file number 1-7534

STORAGE TECHNOLOGY CORPORATION
(Exact name of registrant as specified in its charter)

Registrant's telephone number, including area code 303-673-5151

Securities Registered Pursuant to Section 12(b) of the Act:

Securities Registered Pursuant to Section 12(g) of the Act:
None

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ý Yes     o No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Act). ý Yes     o No

The aggregate market value of voting stock held by non-affiliates of the registrant was $2,762,406,685 based on the last reported sale price of the common stock of the registrant on the New York Stock Exchange's consolidated transactions reporting system on June 27, 2003, the last business day of the registrant's most recently completed second fiscal quarter. For purposes of this disclosure, shares of common stock held by persons who hold more than 10% of the outstanding common stock of the registrant and common stock held by Section 16 officers and directors of the registrant have been excluded in that such persons may be deemed to be "affiliates" as that term is defined under the rules and regulations promulgated under the Securities Act of 1933. This determination is not necessarily conclusive for other purposes.

As of March 1, 2004, there were 112,461,457 shares of common stock of the registrant outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

The registrant intends to file a definitive proxy statement pursuant to Regulation 14A under the Securities Exchange Act of 1934 within 120 days of its fiscal year ended December 26, 2003. Portions of the registrant's definitive proxy statement for its annual meeting of stockholders to be held May 20, 2004, are incorporated by reference into Part III of this Form 10-K.

PART I

ITEM 1. BUSINESS

FORWARD-LOOKING STATEMENTS

All assumptions, anticipations, expectations, and forecasts contained in the following discussion regarding our business, future products, business plans, financial results, performance, and future events are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Our actual results may differ materially because of a number of risks and uncertainties. Some of these risks are detailed in Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS—FACTORS THAT MAY AFFECT FUTURE RESULTS," and elsewhere in this Form 10-K. Forward-looking statements can typically be identified by the use of words such as "may," "will," "should," "expects," "plans," "anticipates," "believes," "estimates," "predicts," "intends," "potential," "continue," or the negative of such terms, or other comparable words. Forward-looking statements also include the assumptions underlying or relating to any such statements. The forward-looking statements contained in this Form 10-K represent a good-faith assessment of our future performance for which management believes there is a reasonable basis. We disclaim any obligation to update the forward-looking statements contained herein, whether as a result of new information, future events, or otherwise, except as may be otherwise required by law.

GENERAL

Storage Technology Corporation (StorageTek, we, our, or us) was incorporated in Delaware in 1969. Our principal executive offices are located at One StorageTek Drive, Louisville, Colorado 80028, telephone 303-673-5151.

Data storage has been our principal business for more than 30 years. We deliver a broad range of storage solutions that are easy to manage, integrate well with existing infrastructures, and allow universal access to data across servers, media types, and storage networks in both the mainframe and open-systems environments. We provide practical and safe storage solutions in tape, disk, networking, and services.

We provide products and services to a broad range of customers, including large multinational companies, midsize and small businesses, and universities, medical institutions, and governmental agencies. Our customers encompass a broad range of industry sectors around the world, including financial services, retail sales, healthcare, broadcasting, telecommunications, transportation, and a variety of manufacturing industries.

We market our products and services to end-user customers through our direct sales organization and through our indirect channel partners, including original equipment manufacturers (OEMs), value-added distributors (VADs), value-added resellers (VARs), and other distributors.

We maintain a presence in many major cities of the world. We operate sales and service offices throughout the United States and Canada, as well as throughout various international regions, including Europe, Asia-Pacific, and Latin America. U.S. operations accounted for approximately 47% of our total revenue in 2003, and international operations accounted for approximately 53%.

OUR STRATEGY

Our vision is to be the storage experts who deliver easy to use, industry-leading, innovative storage solutions to manage and protect business critical information. We intend to realize our vision of becoming the storage experts through Information Lifecycle Management (ILM). ILM is our approach to help customers assess and manage information based on how data is used and how readily available it must be to the people who use it. ILM offers a sustainable methodology for storing and managing information in a cost-effective manner according to how much it contributes to business operations at any point in time.

Current market conditions are forcing businesses to reconsider how they store and manage their information. Data volume is continually increasing, and companies are saving more data than ever due to government regulations, litigation, business continuance, and other requirements. These conditions are further complicated by the fact that storage costs are not decreasing as fast as the volume of data is increasing. While storage management costs and complexity are rising rapidly, most information technology budgets are flat or declining. ILM is designed to help our customers address these issues in an effective and efficient manner. By applying the ILM building blocks described below, customers may be able to achieve a proper balance in managing their storage infrastructures.

The ILM framework consists of the following four building blocks:

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Storage—The foundation of our ILM strategy, storage includes a hierarchy of hardware and software with different price and performance options, from online storage for highly accessible data to archival storage for data that is rarely accessed, but must be retained.



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Management—The brains behind our ILM strategy, management provides the intelligence for moving information along the storage hierarchy so that the right data is in the right place at the right time.

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•

Replication—The heart of our ILM strategy, replication determines what degree of protection is needed for each level of data.



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Integration—Integration turns our ILM strategy into a working solution by providing the networking and services necessary to ensure compatibility across servers, media types, and storage networks.

Our ILM strategy helps customers accomplish the following goals:

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Store more data with fewer devices to save more time, money, and resources



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Balance protection options with business risk to protect data from unexpected loss



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Simplify data management and streamline the administration of integrated storage environments

We are able to translate our ILM strategy into reality for our customers by offering a full spectrum of storage product offerings, from online primary disk to inline Advanced Technology Attachment (ATA) disk to nearline tape to archive tape. Customers are able to realize the maximum benefits of these product offerings through the broad array of storage services we are able to deliver based on our extensive experience as storage experts.

BUSINESS SEGMENTS

We are organized into two reportable business segments: storage products and storage services. Information concerning revenue and gross profit for each of our business segments is found in Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS," and in Item 8, "FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA," of this Form 10-K, which information is incorporated by reference into this Item 1. All of our assets are retained and analyzed at the corporate level and are not allocated to the individual segments.

STORAGE PRODUCTS

Within storage products, we offer tape, disk, and network products. These product offerings include software designed to maximize storage management capabilities.

Tape Products

Our tape products historically have generated a significant portion of our product revenue. During 2003, tape products represented approximately 77% of our product revenue. These products are engineered to provide a reliable, affordable means to store large volumes of data and consist principally of the following:

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Automated tape libraries.  Our L-Series automated tape libraries range from the L20, with up to 2 tape drives and 20 tape cartridge slots, to the L5500, with up to 80 tape drives and more than 5,000 tape cartridge slots. L-Series libraries are used in open-systems environments and support a wide variety of tape drives. These libraries provide significant flexibility to the customer because they can be easily installed, scaled, and upgraded. The PowderHorn® 9310 automated tape library is our largest-capacity library, with two robotic hands and up to 80 tape drives and more than 5,000 tape cartridge slots. It is a high-capacity, high-performance system for use in mainframe and open-systems environments.



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Tape drives.  The T9840 series tape drives are designed to optimize access speed and are ideal for transaction- intensive applications. The T9940 series tape drives are designed to optimize capacity and are ideal for archiving, record retention, and disaster recovery applications. The T9840 series and T9940 series tape drives are used in both the mainframe and open-systems environments and can be attached by SCSI, ESCON, and native Fibre Channel. We also sell mainframe and open-systems tape media, Quantum tape drives, and Linear Tape Open (LTO) tape drives.



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Virtual tape solutions.  The Virtual Storage Manager™ (VSM) system is a virtual tape product that provides customers with an intelligent software-driven data storage management solution. It is designed to maximize tape utilization, free up floor space, and optimize batch processing. VSM uses a disk buffer and virtual tape technology to optimize access time, throughput, and physical media and transport use, which results in significant time, money, and resource savings for the customer. It is currently available for the mainframe environment.

Disk Products

Our disk products are designed to maximize disk capacity utilization, provide fast access to business critical information, scale to customer storage requirements, and support storage area network (SAN) implementations. Our principal disk products include the following:

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B-Series.  Our BladeStore disk system is a robust ATA disk-based storage system designed for open-systems environments. It offers customers enterprise-class reliability and availability, extreme storage density, and scalable capacity at an affordable price. BladeStore bridges the gap between high-performance disk and low-cost tape.

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•

D-Series.  Our D-Series disk products are designed for open-systems environments and are offered through a strategic alliance with LSI Logic Storage Systems (LSI). D-Series disk is a tiered family of high-performance enterprise disk. It easily scales for a wide variety of online usage, fixed content data distribution, and offline data processing. Our D-Series disk ranges from the entry-level D173 disk system to the enterprise-class D280 disk system.



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V-Series.  The V2X Shared Virtual Array™ (SVA™) subsystem is a virtual disk storage subsystem designed for both the mainframe and open-systems environments. The V2X utilizes a virtual architecture that permits customers to use 100% of their disk storage capacity, saving both time and money. The V2X facilitates rapid data restoration and maximizes application and system availability. Our Virtual Power Suite™ software, which is offered in conjunction with our SVA products, is designed to provide virtual duplication and significantly reduce central processing unit and channel utilization costs associated with data movement.

Network Products

Our storage network products provide a total integrated SAN solution to our customers by enabling cross-media, cross-platform, and cross-vendor accessibility. Our principal storage network products include the following:

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StorageNet® 6000 (SN6000) storage domain manager.  The SN6000 provides network-based virtualization that enables open-systems hosts and applications to share multiple tape storage devices that appear to be directly attached to each host. The SN6000 enables seamless, scalable, and highly efficient management of tape storage resources, allowing customers to more effectively manage their data.



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Networking hardware.  We offer a wide range of Fibre Channel connectivity devices that allow our customers to leverage all of their digital assets. We provide or resell leading world-class products, including Fibre Channel switches, directors, and multi-protocol storage routers for SAN solutions.

STORAGE SERVICES

We provide a broad portfolio of storage services to help our customers maintain, support, and manage their storage infrastructures while reducing their total cost of ownership. Our storage services offerings include the following:

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Enterprise maintenance and support services.  We provide global maintenance and support services for storage products and integrated-system solutions through a combination of service engineers, remote diagnostic tools, online and telephone assistance, and local third-party service providers. We have strategically located our distribution centers throughout our markets to provide spare parts on an expedited basis. We offer different levels of service to meet customer requirements, including on-site service, same-day or next-day service, and parts exchange.



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Professional services.  We provide global professional services that are designed to help customers solve their storage management and integration issues in a cost-effective manner. Our principal professional services offerings include the following:



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SAN design and implementation services



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Data center design, build, and relocation support



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Storage architecture consulting services



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Storage solutions integration



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Virtual tape optimization services



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Business continuity plans



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Enterprise backup and recovery services

BACKLOG

We generally manufacture our products based on our forecasts of near-term demand. We typically receive a significant volume of our orders late in each quarter, and customers may reschedule or cancel unfilled orders. For these reasons, we believe that backlog levels are not a meaningful indicator of future sales.

MARKETING AND DISTRIBUTION

We market our products and services on a global basis to end-user customers through our direct sales organization and through indirect channel partners. Our worldwide direct sales organization includes sales representatives, service engineers, system engineers,

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system integrators, and administrative support staff. Sales made by our direct sales force accounted for approximately 53% of our product revenue in 2003, 55% in 2002, and 59% in 2001.

Our indirect channel partners, including OEMs, VADs, and VARs, expand our reach into new markets and provide access to new customers. Indirect channel sales accounted for approximately 47% of our product revenue in 2003, 45% in 2002, and 41% in 2001. We generally receive lower gross profit margins on indirect channel sales, as compared to sales generated by our direct sales organization.

Our revenue recognition accounting policies for indirect channel sales differ from those used for direct sales. See Note 2 of "NOTES TO CONSOLIDATED FINANCIAL STATEMENTS" in Item 8 of this Form 10-K for a discussion of our revenue recognition policies. We are subject to various risks associated with our indirect channel partners, as detailed in Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS—FACTORS THAT MAY AFFECT FUTURE RESULTS—We may be materially affected by our ability to grow our indirect channels successfully," which information is incorporated by reference into this Item 1.

International revenue accounted for approximately 53% of total revenue in 2003, 49% in 2002, and 51% in 2001. In each of these three fiscal years, over two-thirds of our international revenue was derived from Europe. We are subject to various risks associated with conducting business outside the U.S. See Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS—FACTORS THAT MAY AFFECT FUTURE RESULTS—We may be materially affected by the risks of conducting business outside the United States," which information is incorporated by reference into this Item 1, for a discussion of risks associated with international operations.

MANUFACTURING AND MATERIALS

Our primary manufacturing and assembly facilities are located in Puerto Rico. We also perform limited manufacturing and assembly in Colorado and France. All of our manufacturing and assembly facilities are currently in compliance with ISO 9001, 9002, or 9003.

We purchase subassemblies, parts, and components for our products from both U.S. and international vendors. These purchases make up a substantial portion of our production costs. In-house manufacturing, assembly, and testing make up the remaining balance of our production costs.

Certain parts and components included in our products are obtained from a sole source supplier or a limited group of suppliers. For a discussion of risks associated with sole source suppliers, see Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS—FACTORS THAT MAY AFFECT FUTURE RESULTS—We may be materially affected by the risks associated with sole source suppliers," which information is incorporated by reference into this Item 1.

We have long-term supply contracts with certain suppliers, and we obtain other parts and components through purchase orders. Our suppliers are not obligated to supply products for an extended period or at specific quantities or prices. Our dependence on suppliers involves a number of risks, including the possibility of a shortage of key parts or components, longer lead times, and reduced control over production and delivery schedules. See Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS—FACTORS THAT MAY AFFECT FUTURE RESULTS—We may be materially affected by a failure to obtain quality parts and components in a timely manner or by a failure to effectively manage inventory levels," which information is incorporated by reference into this Item 1.

We use proprietary design and manufacturing technologies to perform certain critical manufacturing steps for the read/write heads used in our T9840 and T9940 series tape drives. The sophisticated nature of the exacting manufacturing process requires a clean room environment. Even within a clean room environment, problems such as chemical contamination, power surges, optical misalignments, and temperature variations—in any one of the many processes used in manufacturing—could halt production for an indeterminate period of time.

COMPETITION

The data storage industry is intensely competitive and is characterized by rapid and continuous technological change, short product life cycles, changing customer requirements, and aggressive pricing. Our competitors vary in size and offer a broad range of products and services. We compete primarily on the basis of technology, product availability, performance, quality, reliability, price, and customer service. Aggressive competition has resulted in price erosion in the past, and we expect this trend to continue.

Competition for data storage products and services is characterized based on the class of products or services, as described below:

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Tape products.  We are a leading provider of automated tape libraries, tape drives, and virtual tape solutions. Our main competitors in these markets include Advanced Digital Information Corporation, Hewlett-Packard, IBM, and Quantum.



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Disk products.  Our disk product offerings compete in the mainframe and open-systems disk markets. EMC, Hitachi, and IBM hold dominant positions in the mainframe disk market. These competitors also have much larger research and development

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programs, as well as substantially greater financial, technical, and marketing resources, than we do. Competition is much more diverse in the open-systems disk market, which is characterized by low barriers to entry.

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Network products.  Our SN6000 has a limited installed base as it is targeted for tape networking applications. We also offer third-party network products in conjunction with storage integration offerings for our customers. The market for network products is highly competitive and characterized by low barriers to entry and rapidly changing standards for protocols and interconnects.



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Storage services.  We compete with a wide range of service providers who vary in terms of size and service offerings, no one of which is dominant in the storage services industry.

See Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS—FACTORS THAT MAY AFFECT FUTURE RESULTS—We may be materially affected by competition and by our ability to execute our ILM strategy to address competition," which information is incorporated by reference into this Item 1, for a discussion of risk factors related to competition and ILM.

RESEARCH AND DEVELOPMENT

We incurred research and development costs of approximately $204 million in 2003, $215 million in 2002, and $245 million in 2001. Our research and development activities focus on tape and disk products, virtual storage, SAN products, and services. We conduct research and development activities primarily internally, but we also enter into strategic partnerships and outsourcing arrangements for certain research and development activities.

We anticipate that we will continue to incur significant research and development costs in order to maintain and improve our competitive position. We cannot provide any assurance that we will successfully develop future products in a timely or cost-efficient manner. For further discussion of risk factors concerning research and development, see Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS—FACTORS THAT MAY AFFECT FUTURE RESULTS—We may be materially affected by risks associated with new product development," which information is incorporated by reference into this Item 1.

INTELLECTUAL PROPERTY AND LICENSES

We protect our proprietary rights through a combination of patents, copyrights, trademarks, and trade secret laws. We enter into confidentiality agreements relating to our intellectual property with our employees and consultants, and we include confidentiality provisions in license and non-exclusive sales agreements with our customers. Our policy is to apply for patents or other appropriate proprietary or statutory protection in both the United States and selected foreign countries. We believe that the duration and effect of our patents is adequate relative to the expected lives of our products.

We presently hold approximately 550 U.S. patents, approximately 60 of which were issued in 2003. We also have numerous patent applications pending in the United States, including several that have been allowed and that we expect to be formally issued. Each patent generally has a 20-year term from the first effective filing date. We also hold foreign counterparts to many of our U.S. patents, and we have numerous applications pending in foreign countries. In addition, we have licenses to use patents held by others. No individual patent, license, or other item of proprietary information is material to our business.

We have obtained certain trademarks and trade names for our products as part of our ongoing branding.

For discussion of risk factors concerning intellectual property, see Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS—FACTORS THAT MAY AFFECT FUTURE RESULTS—We may be materially affected by the risks associated with developing and protecting intellectual property," which information is incorporated by reference into this Item 1.

ENVIRONMENTAL COMPLIANCE

We are subject to federal, state, local, and international environmental laws and regulations. Compliance with these laws and regulations has not had a material effect on our capital expenditures, earnings, or competitive position.

The European Union has finalized the Waste Electrical and Electronic Equipment (WEEE) directive, which regulates the collection, recovery, and recycling of waste from electrical and electronic products, and the Restrictions on the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS) directive, which bans the use of certain hazardous materials including lead, mercury, cadmium, chromium, and halogenated flame-retardants. Under WEEE, we will be responsible for financing operations for the collection, treatment, disposal, and recycling of past and future covered products. Because the specific legal requirements have not been finalized, we are presently unable to reasonably estimate the amount of any costs that may be necessary in order to comply with WEEE or RoHS.

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EMPLOYEES

As of December 26, 2003, we had approximately 7,100 full-time employees.

AVAILABLE INFORMATION

Our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, are available free of charge on our website at www.storagetek.com as soon as reasonably practicable after electronic filing of such material with the Securities and Exchange Commission.

In addition, our website includes items related to corporate governance matters such as our corporate governance guidelines, charters of various committees of the Board of Directors, and our code of ethics applicable to, among others, our CEO, CFO, and Corporate Controller. Copies of these documents are available free of charge on our website. Any stockholder may also obtain copies of these documents, free of charge, by sending a written request to the following address:

Corporate Secretary
StorageTek
One StorageTek Drive
Louisville, CO 80028-4309

OTHER MATTERS

Our business, particularly the storage products segment, has experienced seasonality in the past. The fourth quarter has historically generated the most revenue, while the first quarter has generated the least revenue. See Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS—FACTORS THAT MAY AFFECT FUTURE RESULTS—We may be materially affected by uneven sales patterns and by our ability to forecast customer demand accurately," which information is incorporated by reference into this Item 1, for a discussion of risk factors related to seasonality.

No single customer accounted for 10% or more of our total revenue in 2003. No material portion of our business is subject to contract termination at the election of the U.S. government.

Reference is made to the following "NOTES TO CONSOLIDATED FINANCIAL STATEMENTS" set forth in Item 8 of this Form 10-K for certain additional information, which information is incorporated by reference into this Item 1:

Reference is also made to Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS," of this Form 10-K for information regarding liquidity, capital resources, and factors that may affect future results, which information is incorporated by reference into this Item 1.

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ITEM 2. PROPERTIES

Our headquarters are located in Louisville, Colorado. As of December 26, 2003, we owned or leased a total of approximately 3,424,800 square feet of space worldwide. At the present time, we believe that our existing properties are suitable and adequate to meet our business needs.

The following is a summary of the locations, functions, approximate square footage, and estimated utilization of those properties:

ITEM 3. LEGAL PROCEEDINGS

For information regarding legal proceedings, see Note 8 of "NOTES TO CONSOLIDATED FINANCIAL STATEMENTS," included in Item 8 of this Form 10-K, which information is incorporated by reference into this Item 3.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

No matter was submitted to a vote of our security holders during the fourth quarter of the fiscal year ended December 26, 2003.

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PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

Our common stock is traded on the New York Stock Exchange under the symbol STK. The table below reflects the high and low closing sales prices of our common stock on the New York Stock Exchange composite tape as reported by The Wall Street Journal during each fiscal quarter of 2003 and 2002. On March 1, 2004, there were 9,665 record holders of our common stock.

We have never paid cash dividends on our common stock. We currently plan to continue to retain future earnings for use in our business. Our revolving credit facility agreement prohibits the payment of cash dividends.

Information regarding securities authorized for issuance under equity compensation plans is set forth in Item 12 of this Form 10-K.

ITEM 6. SELECTED FINANCIAL DATA

FIVE-YEAR COMPARISON OF SELECTED FINANCIAL DATA

The fiscal year 2003, 2002, and 2001 statements of operations data has been derived from the consolidated financial statements and notes appearing elsewhere in this Form 10-K. The fiscal year 2000 and 1999 statements of operations data has been derived from our historical financial statements for such periods. The fiscal year 2003 and 2002 balance sheet data has been derived from the consolidated financial statements and notes appearing elsewhere in this Form 10-K. The fiscal year 2001, 2000, and 1999 balance sheet data has been derived from our historical financial statements for such periods. The following table (in thousands, except per share amounts) should be read in conjunction with the consolidated financial statements and associated notes found in Item 8 of this Form 10-K.

In 2000, we had restructuring and other related charges of approximately $27.3 million, net of tax. In 1999, we had litigation charges and restructuring and other related charges of approximately $102.0 million, net of tax.

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion should be read in conjunction with the consolidated financial statements and associated notes found in Item 8 of this Form 10-K.

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2003 FINANCIAL OVERVIEW

We increased revenue and earnings in 2003, despite the fact that worldwide information technology spending was depressed for much of the year. Total revenue of $2.2 billion was up 7% compared to 2002. Revenue increased 2% as adjusted to reflect constant foreign currencies. We had revenue growth in both of our business segments in 2003, with a 5% increase in storage products revenue and an 11% increase in storage services revenue. The increase in storage products revenue was primarily due to strong tape product sales and success in selling integrated storage solutions. Storage services revenue increased due to strong maintenance and support services revenue, as well as a growing revenue contribution from our professional service offerings. We had a solid improvement in storage products gross profit margin due to favorable product mixes. Service margins decreased primarily due to increased investments in service resources. All of our geographies contributed to the revenue growth in 2003. The fourth quarter of 2003 represented the fourteenth straight quarter we have increased our earnings on a year-over-year basis. This earnings growth has been accomplished through a focus on profitable revenue growth, productivity improvements, and strong cost controls.

We continued to strengthen our balance sheet and cash flows during 2003. Total cash and investments increased $396.4 million to $1.06 billion as of December 2003, a 60% increase from December 2002. We drove working capital efficiencies by reducing our inventory and accounts receivable balances from 2002 to 2003. Our inventory levels decreased 17% due to continuing lean manufacturing initiatives. Our accounts receivable balance decreased 5% due to reductions in our past due receivable balances and improvements in our cash conversion cycle. Our operations are self-funded and our debt-to-capitalization ratio remains constant at 1%.

Through our strong balance sheet and cash flows, we believe that we are firmly positioned to exploit the imminent rebound in the economy. Our primary challenge for the future is to continue to grow revenue. We believe revenue growth can be achieved primarily through the successful execution of our Information Lifecycle Management (ILM) strategy. In 2004, we will continue to focus on improving our sales productivity in Europe. We believe that recent organizational changes in Europe will enable this improvement. A potential risk to successfully growing our revenue and earnings in the future is a continuation of the global economic downturn and its impact on information technology spending.

SELECTED CONSOLIDATED STATEMENT OF OPERATIONS DATA

The following table presents Consolidated Statements of Operations data stated as a percentage of total revenue, except for segment gross profit, which is stated as a percentage of the applicable segment revenue. The table also presents the percentage change based on the dollar amounts of each of the items.

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The following table presents supplemental data for storage products revenue stated as a percentage of total storage products revenue, and the percentage change based on the dollar amounts of each of the items.

REVENUE AND GROSS PROFIT MARGIN

Storage Products

Our storage products revenue consists of sales of tape products, disk products, and network products, including related software, for the mainframe and open-systems markets. The open-systems market consists of products designed to operate in the Unix, NT, and other non-MVS operating environments.

Storage products revenue increased in 2003, compared to 2002, primarily due to increases in tape and disk product sales. We had a 4% increase in tape product sales that was driven by strength in our Virtual Storage Manager (VSM) system revenue, which increased 20% from 2002. We also had a 10% increase in both our high-end and mid-range tape drive revenue. Disk product revenue increased 17% in 2003, propelled by a 37% increase in open-systems disk product revenue. We expanded our open-systems disk product portfolio in 2003, including our BladeStore offerings. The increase in open-systems disk revenue was partially offset by an 8% decrease in enterprise disk products. Storage products gross profit margin increased primarily due to a shift in product mix toward our higher margin products, led by the strength of our VSM sales. Revenue growth and margin increases benefited in 2003 from a particularly strong fourth quarter for VSM. Product mix, channel mix, and further operational efficiencies will be the key factors for maintaining and increasing storage products gross profit margin.

Storage products revenue decreased in 2002, compared to 2001, primarily due to a 10% decrease in tape product sales. We believe the decline in tape product sales was primarily attributed to the global economic conditions and the associated weakness in information technology spending, which translated into lower unit sales in 2002. The decline in tape products was partially offset by increased sales of disk and network products. Storage products gross profit margin decreased slightly in 2002, reflecting an increasing revenue contribution from our indirect channels, which typically carry lower gross profit margins. The margin pressure was largely offset by our efforts to reduce product costs.

Storage Services

Our storage services revenue consists primarily of revenue associated with the maintenance and support of our storage products and third-party storage products, as well as professional services revenue associated with diverse storage consulting activities.

Storage services revenue increased in 2003, compared to 2002, primarily due to an 8% increase in maintenance and support services revenue. We also had strong revenue growth from selling new professional service offerings. Storage services gross profit margin decreased in 2003, compared to 2002, primarily due to additional investments in resources within the services arena that we made in 2003 in order to expand our reach into new markets. The decrease in service margin was also due to increased revenue contributions from professional services, which typically carry lower margins than our traditional maintenance offerings. Professional services revenue accounted for 11% of total storage services revenue in 2003, compared to 9% for 2002. If professional services become a greater portion of our service revenue, we expect that the resulting change in our services mix would continue to adversely impact our storage services gross profit margin.

Storage services revenue increased in 2002, compared to 2001, driven largely by an expanded effort to sell services that help customers successfully manage their storage requirements, with balanced growth across our storage services portfolio. New service offerings included various storage consulting services, implementation services, and storage management services. Storage services gross profit margin increased in 2002, compared to 2001, reflecting improvements in spare parts utilization and the service delivery process.

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RESEARCH AND DEVELOPMENT

Research and development expenses have steadily decreased from 2001 through 2003. These decreases have been achieved primarily through the implementation of engineering initiatives designed to improve research and development productivity, increase strategic alignment, and reduce non-essential spending. We continue to align our engineering functions to support the aims of our ILM strategy and improve productivity. We conduct research and development activities primarily internally, but we also enter into strategic partnerships and outsourcing arrangements for certain research and development activities. No single research or development project is expected to be individually material to our financial condition or results of operations, either in terms of the estimated future cost to complete or in terms of expected future revenue or cash flows resulting from the completion of the project.

SELLING, GENERAL, AND ADMINISTRATIVE EXPENSE

Selling, general, and administrative expense (SG&A) increased in 2003, compared to 2002, primarily due to increased commission and bonus expenses as a result of our improved financial performance. SG&A also increased during 2003 as a result of investments in sales coverage and marketing initiatives designed to promote our ILM strategy. SG&A remained largely unchanged in 2002, compared to 2001. SG&A as a percentage of total revenue has remained relatively consistent during 2003, 2002, and 2001.

INTEREST INCOME AND EXPENSE

Interest income and expense were largely unchanged in 2003 compared to 2002 and 2001. Although our cash and investments balance has been increasing, decreasing interest rates have kept our interest income relatively unchanged. See "LIQUIDITY AND CAPITAL RESOURCES" for further discussion of our debt and financing arrangements.

INCOME TAXES

Our effective tax rate is impacted by a variety of factors, including the overall effectiveness of our global manufacturing strategies and changes in our estimates regarding the resolution of open tax matters. The following table summarizes our provisions for income taxes and effective tax rates both as reported on the Consolidated Statements of Operations and as adjusted to reflect the resolution of open tax matters (in thousands):

The resolution of open tax matters has resulted in a reduction in our tax provision of $5.5 million during 2003 and $10.5 million in 2002. Adjusting the reported tax provision to exclude these discrete tax events, our effective tax rate has decreased steadily from 34% in 2001 to 29% in 2003. This reduction in our effective tax rate reflects the fact that we continue to recognize increased tax benefits associated with our manufacturing operations in Puerto Rico. We expect that the effective tax rate will continue to decrease in 2004.

We are subject to regular audits by federal, state, and foreign tax authorities. These audits may result in proposed assessments that may result in additional tax liabilities. Our income taxes payable balance as reported on the Consolidated Balance Sheet is comprised primarily of tax contingencies that we believe are both probable and reasonably estimable.

Our effective tax rate does not include U.S. tax on undistributed earnings of our foreign subsidiaries because such earnings are intended to be reinvested indefinitely outside of the U.S. The determination of amounts to be reinvested is based on the projected cash flow needs and the working capital and long-term investment requirements of our foreign subsidiaries and domestic operations. If excess cash has accumulated in the foreign subsidiaries and it is advantageous for business operations, tax, or foreign exchange reasons, a portion of the subsidiary earnings may be remitted. If such a determination is made, we would provide for the U.S. taxes due on those amounts at the time the determination is made. Material changes in our estimates of cash, working capital, and long-term investment requirements could impact our effective tax rate.

We have approximately $233.0 million of deferred tax assets as of December 26, 2003, which are recorded in accordance with Statement of Financial Accounting Standards (SFAS) No. 109, "Accounting for Income Taxes." Our valuation allowance of approximately $23.2 million relates principally to foreign net operating loss carryforwards.

See "CRITICAL ACCOUNTING ESTIMATES AND ASSUMPTIONS—Accounting for Income Taxes" for further description of our critical accounting estimates and assumptions for income taxes.

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CRITICAL ACCOUNTING ESTIMATES AND ASSUMPTIONS

Management's Discussion and Analysis of Financial Condition and Results of Operations is based on our consolidated financial statements, which have been prepared in conformity with accounting principles generally accepted in the United States of America (GAAP). The preparation of our financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, related revenue and expenses, and disclosure of gain or loss contingencies. We base our estimates on historical experience and on various other assumptions that we believe are reasonable under the circumstances. Actual results could differ materially from these estimates and assumptions.

Management has discussed the development, selection, and disclosure of our critical accounting estimates and assumptions with the Audit Committee of our Board of Directors. We believe that the application of the following critical accounting estimates and assumptions represent our more significant judgments used in the preparation of our consolidated financial statements.

Revenue Recognition

The majority of our products and services are delivered subject to agreements with standard terms and conditions. In certain situations, however, our agreements may include non-standard terms and conditions. In these situations, we must make judgments to determine the appropriate accounting. These judgments generally involve assessments regarding matters such as:

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whether there are sufficient legally binding terms and conditions



•

whether customer acceptance has been received



•

whether the price to the customer is fixed or determinable



•

whether collection is reasonably assured

We evaluate the sufficiency of the terms and conditions of our agreements, as well as whether customer acceptance has been received, based on management's judgments, and as appropriate, advice from legal counsel. We evaluate whether the price to the customer is fixed or determinable based on historical experience. If we conclude that we cannot reliably estimate future returns, we utilize a sell-through method of accounting. For those sales recognized under the sell-in method of accounting, we record reductions in revenue for anticipated future returns. We record reductions to revenue for sales price adjustments. The reserves for anticipated future returns and sales price adjustments are determined based on our historical claims and returns experience. Our actual experience in future periods with respect to returns and sales price adjustments may differ from our historical experience.

We perform a quarterly analysis of our historical bad debt write-off experience to assess the reserve requirements for our aged receivables. We evaluate the collectibility of our accounts receivable based on both a specific analysis of known situations where we anticipate that customers will be unable to meet their financial obligations and a general analysis of past due receivables and our historical collection experience with similar accounts. If circumstances related to a specific customer change, or if our historical bad debt write-off experience changes as a result of changes in global economic conditions or other changes in our business, we may need to subsequently adjust our allowance for doubtful accounts. For additional information related to our allowance for doubtful accounts, see Note 2 of "NOTES TO CONSOLIDATED FINANCIAL STATEMENTS," included in Item 8 of this Form 10-K.

Warranty Costs and Liability

Our standard product warranties provide for the repair or replacement of products that fail to meet their published specifications. In situations where a product fails its essential purpose to the customer, we may also be responsible for refunding the purchase price of the product to the customer if we cannot remedy the product failure. We establish a warranty liability for the estimated cost of warranty-related claims at the time revenue is recognized. The amount of the warranty liability reflects our estimate of the expected future costs of fulfilling our obligations under the warranties. In developing our estimate, we consider our historical experience, the length of the warranty period, and the expectations for new products. If we discover a product design flaw or other unanticipated problem, our actual warranty costs may differ significantly from our original estimates. If we determine that an increased warranty reserve is necessary, we would increase the warranty liability and cost of revenue in the period the determination was made. The warranty liability is reviewed quarterly to verify that it properly reflects management's best estimate of the remaining warranty obligations. For additional information related to our warranty reserves, see Note 9 of "NOTES TO CONSOLIDATED FINANCIAL STATEMENTS," included in Item 8 of this Form 10-K.

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Inventory Valuation

We establish and evaluate our inventory reserve estimates for obsolete, slow-moving, and non-saleable inventory based on a quarterly review of inventory cost versus estimated market value. Market value estimates involve significant judgments about a number of factors, including the impacts of future product or technology introductions by us or by our competitors, delays in the availability of new products, changes in the purchasing patterns of our customers, and changes in global economic conditions. To the extent that inventory cost exceeds estimated market value, we would increase our inventory reserve, which would result in a corresponding charge to cost of revenue. For additional information related to our inventory reserves, see Note 2 of "NOTES TO CONSOLIDATED FINANCIAL STATEMENTS," included in Item 8 of this Form 10-K.

Accounting for Income Taxes

We are subject to regular audits by federal, state, and foreign tax authorities. These audits may result in proposed assessments that may result in additional tax liabilities. We account for income tax contingencies in accordance with SFAS No. 5, "Accounting for Contingencies." Our income taxes payable balance as reported on the Consolidated Balance Sheet is comprised primarily of tax contingencies that we believe are both probable and reasonably estimable.

Future benefits or charges to our reported income tax provision can result from the resolution of open tax matters. Some factors that may result in a change in our estimates for contingent tax matters include:

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The expiration of statutes of limitations



•

Changes in tax regulations



•

Tax rulings, settlements, and other factors affecting estimates of tax contingencies

The interaction of all these factors, together with any opportunities for us to minimize the impact of these factors through the carryback or carryforward of any associated tax liabilities or benefits in the multiple tax jurisdictions where we do business, is very complex and requires considerable judgment. Furthermore, these uncertainties may require an extended period of time to resolve and may not be determinable prior to the time the statutes of limitations expire in the respective tax jurisdictions. While we believe that we have appropriately provided for income taxes for all years, any of these factors may result in significant adjustments to our tax provision. Any adjustments to our reserves for tax contingencies may result in benefits or charges that would impact our reported financial results in future periods.

Deferred tax assets and liabilities represent the expected tax consequences of transactions that are recognized in different time periods for book and tax purposes. We record a valuation allowance to reduce the deferred tax assets to the amount of the tax benefit that we believe will be realized in the future. We assess the need for a valuation allowance by reviewing our earnings history, the number of years that our operating losses and tax credits can be carried forward, and future taxable income expectations by tax jurisdiction. We perform an ongoing assessment to determine whether there is a need to increase or decrease the valuation allowance based on our expected realization of the deferred tax assets. Any adjustment to the valuation allowance would impact our tax provision.

RECENT ACCOUNTING PRONOUNCEMENTS

For information regarding recent accounting pronouncements, see Note 2 of "NOTES TO CONSOLIDATED FINANCIAL STATEMENTS," included in Item 8 of this Form 10-K.

LIQUIDITY AND CAPITAL RESOURCES

Sources and Uses of Cash

The following table summarizes our cash flows from continuing operations (in thousands):