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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

For the quarterly period ended March 31, 2005

For the transition period from                          to                         

Commission file number: 000-33001

NATUS MEDICAL INCORPORATED

(Exact name of registrant as specified in its charter)

1501 Industrial Road, San Carlos, CA 94070

(Address of principal executive offices) (Zip Code)

(650) 802-0400

(Registrant’s telephone number, including area code)

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 and Exchange Act of 1934 during the preceding 12 months (or for 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.    Yes x    No ¨

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

The number of issued and outstanding shares of the registrant’s Common Stock, $0.001 par value, as of May 5, 2005, was 17,228,671.

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NATUS MEDICAL INCORPORATED

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PART I.    FINANCIAL INFORMATION

ITEM 1.    Financial Statements

NATUS MEDICAL INCORPORATED AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except share amounts)

The accompanying notes are an integral part of these condensed consolidated financial statements.

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NATUS MEDICAL INCORPORATED AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share amounts)

(unaudited)

The accompanying notes are an integral part of these condensed consolidated financial statements.

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NATUS MEDICAL INCORPORATED AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

The accompanying notes are an integral part of these consolidated financial statements.

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NATUS MEDICAL INCORPORATED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1—Basis of Presentation

The accompanying interim condensed consolidated financial statements of Natus Medical Incorporated (“Natus,” “we,” “us,” or “the Company”) have been prepared in accordance with accounting principles generally accepted in the United Sates of America (“GAAP”). The accounting policies followed in the preparation of the interim condensed consolidated financial statements are consistent in all material respects with those presented in Note 1 to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2004.

Interim financial reports are prepared in accordance with the rules and regulations of the Securities and Exchange Commission, accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. The interim financial information is unaudited, but reflects all normal adjustments that are, in the opinion of management, necessary for fair presentation of our financial position, results of operations, and cash flows for the periods presented. Operating results for the three months ended March 31, 2005 are not necessarily indicative of the results that may be expected for the year ending December 31, 2005.

The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries; significant intercompany transactions have been eliminated.

Comprehensive Income (Loss)

The following are the components of comprehensive income (loss) (in thousands):

2—Inventories

Inventories consisted of (in thousands):

The balances at March 31, 2005 and December 31, 2004 reflect valuation reserves of approximately $456,000 and $518,000, respectively, related primarily to inventory deemed to have a fair market value less that cost.

3—Reserve For Product Warranties

The Company provides a one-year warranty on all medical device products. The Company also sells extended service agreements on its medical device products. Service for domestic customers is provided by a

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NATUS MEDICAL INCORPORATED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

3—Reserve For Product Warranties (continued)

company-owned service center that performs all service, repair, and calibration services. Service for international customers is provided by a combination of company-owned facilities and third-party vendors on a contract basis.

The Company has accrued a warranty reserve, included in accrued liabilities on the accompanying balance sheets, for the expected future costs of servicing products during the initial one-year warranty period. Amounts are added to the reserve on a per-unit basis by reference to historical experience in honoring warranty obligations. On new products, where the Company does not have historical experience of the cost to honor warranties, additions to the reserve are based on a combination of factors including the standard cost of the product and other judgments, such as the degree to which the product incorporates new technology. As warranty costs are incurred, they are relieved from the reserve.

Activity in the warranty reserve during the three months ended March 31, 2005 and 2004 was as follows:

4—Basic and Diluted Net Income (Loss) Per Common Share

The Company computes net income (loss) per share in accordance with Statement of Financial Accounting Standards (“SFAS”) No. 128, Earnings per Share. Basic net income (loss) per share is based upon the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share is based upon the weighted average number of common shares outstanding and dilutive common stock equivalents during the period. Common stock equivalents are options under the Company’s stock option plan and are calculated under the treasury stock method. Common equivalent shares from unexercised stock options are excluded from the computation when there is a loss, as their effect is anti-dilutive, or if the exercise price of such options is greater than the average market price of the stock for the period.

For the three months ended March 31, 2005, common stock equivalents of approximately 1,278,000 shares were included in the weighted average shares outstanding used to calculate diluted income per share. For the same period, approximately 50,000 shares of common stock equivalents were excluded from the calculation of diluted income per share because the exercise price of such options was greater than the average market price of the stock for the period. For the three months ended March 31, 2004, common stock equivalents of approximately 2,558,000 shares were not used to calculate diluted net loss per share because of their anti-dilutive effect.

5—Stock-Based Compensation

The Company accounts for stock-based awards to employees using the intrinsic value method in accordance with Accounting Principles Board (“APB”) No. 25, Accounting for Stock Issued to Employees, as interpreted by Financial Accounting Standards Board (“FASB”) Interpretation (“FIN”) No. 44, Accounting for Transactions Involving Stock Compensation—an Interpretation of APB Opinion No. 25. The Company typically grants stock

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NATUS MEDICAL INCORPORATED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

5—Stock-Based Compensation (continued)

option awards to employees at market value, consequently, compensation expense is typically not recorded. The Company accounts for stock-based awards to non-employees in accordance with SFAS No. 123, Accounting for Stock-Based Compensation and Emerging Issues Task Force (“EITF”) Issue No. 96-18, Accounting for Equity Instruments That Are Issued to Other Than Employees for Acquiring, or in Conjunction with Selling, Goods or Services.

Under SFAS No. 123, the value of each option is estimated on the date of grant using an option pricing model, such as Black-Scholes, which was developed for use in estimating the value of freely traded options. Similar to other option pricing models, it requires the input of highly subjective assumptions, including stock price volatility. Because (1) the Company’s employee stock options have characteristics significantly different from those of traded options and (2) changes in the subjective input assumptions can materially affect the estimated fair value, management’s opinion is that existing option pricing models (including Black-Scholes and Binomial) do not provide a reliable measure of the fair value of Natus’s employee stock options.

Had compensation expense for the Company’s stock option awards been determined based on the Black-Scholes fair value method at the grant dates, consistent with the fair value method of SFAS No. 123, the Company would have recorded additional compensation expense and its net income (loss) and earnings (loss) per share (“EPS”) would have been equal to the pro forma amounts presented in the following table:

6—Segment, Customer, and Geographic Information

The Company currently operates in two reportable segments. The Medical Devices and Related Supplies segment consists of all of the Company’s product lines exclusive of the Neometrics newborn screening data management systems product line, which constitutes the Software Systems segment.

With the exception of our Neometrics newborn screening data management systems, the nature of the Company’s products and production processes as well as type of customers and distribution methods are consistent among all product lines. The Neometrics data management systems product line is differentiated from other product lines in that it is not a medical device or related supply product and is not currently regulated by the FDA, and its revenue is recognized under the percentage of completion basis. The Company acquired the Neometrics newborn screening data management systems product line in July 2003.

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NATUS MEDICAL INCORPORATED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

6—Segment, Customer, and Geographic Information (continued)

The accounting policies of the Company’s reportable segments are the same as those described in Note 1—Basis of Presentation. The Company allocates resources to and evaluates the performance of its segments based on operating income or loss, excluding items that the Company considers non-recurring to the Company’s operations. Direct revenue and costs of each segment are allocated to the segment, including depreciation expense and amortization of intangible assets. For management reporting purposes, corporate expenses are charged predominantly to the Medical Devices and Related Supplies segment. The assets of our segments are directly managed by those segments and include accounts receivable, inventory, certain fixed assets, intangible assets, goodwill, and certain other assets. Assets that are not allocated specifically to the segments primarily include cash and cash equivalents, short-term investments, and deferred tax assets. Other than movements between cash and other components of working capital, there were so significant changes in the assets of our reportable segments during the three months ended March 31, 2005. There are no significant intersegment transactions between the Company’s reportable segments.

The table below presents information about the Company’s reportable segments (in thousands):

The following is revenue and long-lived asset information by geographic region (in thousands):

During the three months ended March 31, 2005 and 2004, no sales to a single customer, or sales in a single foreign country, accounted for greater than 10% of revenue.

7—Restructuring Reserve

In June 2004, the Company recorded a restructuring charge of approximately $776,000 relating to an operating cost reduction plan that resulted in an immediate reduction of 25 employees and the accrual of associated employee termination-related benefits of $629,000, primarily for severance compensation and salary

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NATUS MEDICAL INCORPORATED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

7—Restructuring Reserve (continued)

continuation. The remainder of the charge was associated with the liquidation of the Company’s subsidiary in Japan, which was initiated in June 2004, including the write-down of capital assets, inventory, and prepaid expenses of $80,000, facilities related costs of $38,000, and liquidation service fees of $29,000. Employees involved in the workforce reduction were not required to render additional services to the Company and their employment with the Company ceased on June 30, 2004. In accordance with SFAS No. 146, Accounting for Costs Associated with Exit or Disposal Activities, these costs were accrued as incurred. The Company did not record any additional restructuring costs in the three months ended March 31, 2005, and believes it will not record any additional restructuring charges related to the June 2004 cost reduction plan.

Following is a reconciliation of the beginning and ending restructuring reserve balances related to the June 2004 operating cost reduction plan:

8—Indemnifications

Under its bylaws, the Company has agreed to indemnify its directors and officers for certain events or occurrences arising as a result of their serving in such capacities. The Company has a directors’ and officers’ liability insurance policy that limits the Company’s exposure and enables it to recover a portion of any amounts paid resulting from the indemnification of its directors and officers. In addition, the Company enters into indemnification agreements with other parties in the ordinary course of business. In some cases the Company has obtained liability insurance providing coverage that limits its exposure for these other indemnified matters. The Company has not incurred material costs to defend lawsuits or settle claims related to these indemnification agreements. The Company believes the estimated fair value of these indemnification agreements is minimal and has not recorded a liability for these agreements as of March 31, 2005.

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ITEM 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations

Natus^®, AABR^®, AOAE^®, ALGO^®, ALGO DataBook^®, 70/40^®, Cochlea-Scan^®, Echo-Screen^®, Ear Couplers^®, Flexicoupler^®, Jelly Tab^®, Jelly Button^®, and MiniMuffs^® are registered trademarks of Natus. Convert2Natus^™, DataLink^™, EchoLink^™, neoBLUE^™, Natus Elite^™, neoBLUE mini^™, Neometrics^™, Metabolic Screening Database System (MSDS)^™, Case Management System (CMS)^™, Voice Response System (VRS)^™, Web Electronic Birth Page (Web-EBP)^™, and Accuscreen^™ are non-registered trademarks of Natus. Solutions for Newborn Care(SM) is a non-registered service mark of Natus.

Overview

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations (“MD&A”) supplements the MD&A in the company’s Annual Report on Form 10-K for the year ended December 31, 2004, and presumes that readers have read or have access to the discussion and analysis in the company’s Annual Report. Management’s discussion and analysis should be read in conjunction with the Company’s condensed consolidated financial statements and accompanying footnotes, the discussion below of certain risks and uncertainties, and the cautionary forward-looking statements at the end of this section. MD&A includes the following sections:

Business

We develop, manufacture, and market products for the detection, treatment, monitoring, and tracking of common medical disorders in newborns. Currently, our principal product lines consist of our ALGO screening products for newborn hearing screening, our Echo-Screen OAE device for hearing screening in newborns and hearing monitoring in young children and adults, our neoBLUE LED line of Phototherapy devices (“neoBLUE phototherapy devices”) for the treatment of newborn jaundice, our Neometrics newborn screening data management systems (“MSDS”), our MiniMuffs Neonatal Noise Attenuators (“MiniMuffs”) products for the attenuation of noise for newborns, and the Nascor product line.

Our revenue is generated almost exclusively from the sale of supplies and services, which are generally recurring, and related devices and systems. Supplies and services revenue results from sales of supplies for our ALGO and Echo-Screen medical devices, the Nascor product line of heatshields and oxygen delivery hoods,

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software maintenance agreements for our Neometrics data management systems, as well extended service agreements on our medical devices. Devices and systems revenue results from the sale of our ALGO, Echo-Screen, and neoBLUE medical devices, and installations of our Neometrics newborn screening data management systems.

We sell our products through a direct sales force in the United States (“U.S.”) and the United Kingdom (“U.K.”), and to distributors in over 50 other countries. We intend to continue expansion of our international operations because we believe international markets represent a significant growth opportunity. International sales made to distributors are characterized by lower gross margins due to the discount the distributors receive from our list prices. International sales accounted for 27% of our revenue during 2004, 23% of our revenue during 2003, and 17% of our revenue during 2002. We anticipate that international revenue will increase as a percent of revenue in the future.

As of December 31, 2004, we had total federal and state net operating loss carry forwards of approximately $18.6 million and $6.7 million, respectively, available to reduce future taxable income. If not utilized to offset taxable income in future periods, these net operating loss carryforwards will expire in various amounts beginning in 2005 and continuing through 2023. If we continue to have net losses, we may not be able to utilize some or all of our net operating loss carryforwards before they expire. In addition, U.S. income tax law imposes limitations on the amount of net operating loss carry forwards we can use in any given year and on the ability to use net operating loss carry forwards if we experience a more than 50% change in ownership during any three-year period.

2005 First Quarter Overview

During the three months ended March 31, 2005 Natus recognized $9.7 million of revenue, an increase of $1.1 million or 13% from $8.6 million in the comparable quarter of the previous year. Revenue from international operations increased 59% to $3.6 million dollars for 2005 period, compared with first-quarter 2004 revenue of $2.3 million dollars.

Our gross margin improved to 60.1% for the three months ended March 31, 2005, compared with 56.2% for the first quarter of 2004. The gross margin for the 2005 period was favorably impacted by reductions in materials costs, as well as a reduction in manufacturing overhead as a percentage of revenue, as it is largely fixed. For the three months ended March 31, 2005, total operating expenses decreased by $285,000, or approximately 5%, to $5.0 million, compared with $5.2 million for the first quarter of 2004.

Net income for the 2005 period was $910,000, or $0.05 per diluted share, compared with a net loss of $447,000, or ($0.03) per share in 2004.

Application of Critical Accounting Policies

We prepare our financial statements in accordance with generally accepted accounting principles (“GAAP”). In so doing, we must often make estimates and use assumptions that can be subjective, and consequently our actual results could differ from those estimates. For any given individual estimate or assumption we make, there may also be other estimates or assumptions that are reasonable.

We believe that the following critical accounting policies require the use of significant estimates, assumptions, and judgments. The use of different estimates, assumptions, and judgments could have a material affect on the reported amounts of assets, liabilities, revenue, expenses, and related disclosures as of the date of the financial statements and during the reporting period.

Revenue Recognition

We recognize revenue, net of discounts, from sales of medical devices, and supplies, including sales to distributors, when a purchase order has been received, when title transfers (generally upon shipment), when the

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selling price is fixed or determinable, and when collection of the resulting receivable is reasonably assured. Terms of sales to distributors are EXW, an international incoterm, reflecting that goods are shipped “ex works,” in which title and risk of loss are assumed by the distributor at the shipping point. Revenue from our Neometrics newborn screening data management systems, which are generally highly configurable, is recognized on the percentage of completion basis over the development and implementation period of the associated installation, which typically ranges from six to eighteen months. Revenue from extended service and maintenance agreements, for both medical devices and data management systems, is recognized ratably over the service period. Advance payments from customers are recorded as deferred revenue and recognized as revenue as otherwise described above. We generally do not provide rights of return on products. We accept trade-ins of our own and competitive medical devices. Trade-ins are recorded as a reduction of the replacement medical device sale. Provisions are made for initial standard warranty obligations of one year, and post-sale training and customer support at the time the related revenue is recognized.

More than 90% of the hospitals in the U.S. are members of group purchasing organizations (“GPO”s), which negotiate volume purchase prices for member hospitals, group practices, and other clinics. We have entered into agreements with several group purchasing organizations, which typically contain preferential terms for the GPO and its members, including provisions for some if not all of the following:

GPO’s do not generally purchase products from us. Hospitals, group practices, and other clinics that are members of GPO’s purchase products directly from us under the terms negotiated by the GPO. Negotiated pricing and discounts are recognized as a reduction of the selling price of our products rather than an expense. Revenue from sales to members of GPO’s is otherwise consistent with our general revenue recognition policies as described previously.

We must exercise judgment when assessing the sufficiency of our allowance for estimated uncollectible accounts receivable. Our estimates are based on our historical collection experience within the markets in which we operate as well as assessment of our average accounts receivable aging days and any other specific information of which we may be aware, such as bankruptcy filings or liquidity problems of our customers. Any future determination that our allowance for estimated uncollectible accounts receivable is understated could result in increased operating expense and reduce our results of operations.

At March 31, 2005 our deferred revenue under extended service and maintenance agreements, and billings in excess of recognized revenue on percentage-of-completion contracts was approximately $357,000. Other advance payments from customers were not material at March 31, 2005. Our allowance for estimated uncollectible accounts receivable was $481,000 at March 31, 2005.

Inventory is carried at the lower of cost or market value

As a medical device manufacturer, we may be exposed to a number of factors that could result in portions of our inventory becoming either obsolete or in excess of anticipated usage. These factors include, but are not limited to, technological changes in our markets, competitive pressures in products and prices, and our own introduction of new product lines.

We regularly evaluate our ability to realize the value of our inventory based on a combination of factors, including historical usage rates, forecasted sales, product life cycles, and market acceptance of new products.

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When we identify inventory that is obsolete or in excess of anticipated usage we write it down to realizable salvage value or provide for inventory valuation reserves. The estimates we use in projecting future product demand may prove to be incorrect. Any future determination that our inventory is overvalued could result in increases to our cost of sales and decreases to our operating margins and results of operations.

At March 31, 2005, we had inventories with a carrying value of approximately $3.5 million.

Carrying value of intangible assets

We amortize intangible assets with finite lives over their useful lives; any future changes that would limit their useful lives or any determination that these assets are carried at amounts greater than their fair value could result in additional charges. We carry goodwill and any other intangible assets with indefinite lives at original cost but do not amortize them; any future determination that these assets are carried at greater than their fair value could result in additional charges, which could significantly impact our operating results.

We test our goodwill and indefinite-lived intangible assets for impairment at least annually on October 1st of each year; however, this assessment may take place at any time in the event of changes in circumstances that indicate the carrying value of these assets may be impaired. Similarly, we test our definite-lived intangible assets whenever changes in circumstances indicate the carrying value of these assets may be impaired. Impairment indicators include, but are not limited to, net book value as compared to market capitalization, significant negative industry and economic trends, and significant underperformance relative to historical and projected future operating results. Impairment is considered to have occurred when the estimated undiscounted future cash flows related to the asset are less than its carrying value. Estimates of future cash flows involve consideration of many factors including the marketability of new products, product acceptance and lifecycle, competition, appropriate discount rates, and operating margins. If these estimates or their related assumptions change in the future, we may be required to record impairment charges, which could significantly impact our operating results.

At March 31, 2005 we had goodwill and intangible assets with a carrying value of approximately $9.2 million.

Liability for product warranties

Our medical device products are covered by standard one-year product warranty plans. A liability has been established for the expected cost of servicing our products during these service periods. We base the liability in part upon our historical experience; however, estimates of the costs to honor our warranties are often difficult to determine due to uncertainty surrounding the extent to which new products will require servicing and the costs that will be incurred to service those products. Until we have historical experience of the cost to honor warranties on new products, we base additions to the reserve on a combination of factors including the standard cost of the product, experience with similar products, and other judgments, such as the degree to which the product incorporates new technology. The estimates we use in projecting future product warranty costs may prove to be incorrect. Any future determination that our product warranty reserves are understated could result in increases to our cost of sales and reductions in our operating margins and results of operations.

At March 31, 2005 our reserve for product warranties was approximately $241,000.

Valuation allowance for deferred tax assets

We record a valuation allowance against our deferred tax assets, which result primarily from net operating loss and credit carry forwards that expire over time, and temporary differences between book and tax results that will reverse in the future. In evaluating whether we would more likely than not recover these deferred tax assets, we have not assumed any future taxable income in the tax jurisdictions in which we operate. To the extent we establish a valuation allowance, or increase this allowance in a period, we include an offsetting expense within

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the tax provision in the consolidated statement of operations. Future income generation in these tax jurisdictions could lead to the reversal of these valuation allowances and additional income recognition.

At December 31, 2004, our net deferred tax assets were zero, net of an approximate $10.2 million valuation allowance.

Results of Operations

The following table sets forth, for the periods indicated, selected consolidated statements of operations data as a percentage of total revenue. Our historical operating results are not necessarily indicative of the results for any future period.

Three Months Ended March 31, 2005 and 2004

Consolidated Results

Our revenue increased $1.1 million, or 13%, to $9.7 million in the three months ended March 31, 2005 from $8.6 million in the same period in 2004. Revenue from devices and systems grew to $4.5 million in the three months ended March 31, 2005 from $3.1 million in the same period in 2004. The increase was attributable to sales of hearing screening devices, including our Echo-Screen device, which Natus gained through its recent acquisition of Fischer-Zoth, and sales of the neoBLUE line of phototherapy devices, partially offset by a decrease in revenue from installations of our Neometrics metabolic screening database systems. Revenue from supplies and services decreased $293,000 or 5%, to $5.1 million in the three months ended March 31, 2005 from $5.4 million in the same period in 2004. A customer that contributed to approximately 8% of our supplies and services revenue in the 2004 period significantly reduced their purchases of supplies from us in the 2005 period. In addition, maintenance revenue on our Neometrics metabolic screening database systems decreased by approximately $80,000 in the 2005 period. These reductions were partially offset by increased sales of supplies to other customers in both domestic and international markets.

Revenue from sales outside the U.S. was $3.6 million in the three months ended March 31, 2005, up from $2.3 million in the same period in 2004. Substantially all of the revenue increase in the three months ended

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March 31, 2005 was attributed to sales in Europe and the United Kingdom, while sales in other areas of the world including Asia and Oceania were flat. The increase in revenue in Europe and the United Kingdom was primarily attributable to sales of hearing screening devices, including our Echo-Screen OAE device.

During the three months ended March 31, 2005 and 2004, no sales to a single customer accounted for greater than 10% of revenue.

Cost of revenue includes the cost of materials, personnel expenses, packaging, shipping costs, other manufacturing costs, warranty expenses, and technology license fees. Our cost of revenue increased $112,000 to $3.9 million in the three months ended March 31, 2005, from $3.8 million in the same period in 2004. Cost of revenue as a percent of total revenue was 39.9% in the three months ended March 31, 2005, compared with 43.8% reported in the same period in 2004. The improvement in the cost of revenue percentage was primarily associated with reductions in materials costs, as well as a reduction in manufacturing overhead as a percentage of revenue, as it is largely fixed.

In June 2004 the Company initiated an operating cost reduction plan (the “June 2004 restructuring”) that resulted in the immediate reduction of 25 employees, and we also initiated a plan to liquidate our Japanese subsidiary. Cost reductions in the three months ended March 2005 compared to the same period in 2004, as more fully described below, were substantially the result of the June 2004 restructuring, with exceptions being noted.

Marketing and selling expenses consist primarily of salaries, commissions, travel, promotional, and advertising costs. Our marketing and selling expenses decreased $366,000, or 12%, to $2.6 million in the three months ended March 31, 2005 from $3.0 million in the same period in 2004. In the three months ended March 31, 2005 compared to the same period in 2004, we experienced reduced costs of domestic payroll and outside services. These costs savings were offset by marketing and selling costs associated with Fischer-Zoth, which we acquired in September 2004.

Research and development expenses consist of engineering costs to develop new products, enhance existing products, and validate the design of new or enhanced products. Our research and development expenses increased $87,000, or 10%, to $993,000 in the three months ended March 31, 2005, compared to the same period in 2004. Decreases in domestic payroll and outside services were offset by research and developments costs associated with Fischer-Zoth.

General and administrative expenses consist of corporate, finance, information technology, human resources, administrative, and legal expenses. Our general and administrative expenses were flat at $1.4 million for the three months ended March 31, 2005 and 2004. Cost savings for domestic payroll were offset by general and administrative costs associated with Fischer-Zoth.

Other income, net consists of net capital gains and losses from our investment portfolio, net currency exchange gains and losses, and other miscellaneous income and expenses. Other income, net was $192,000 in the three months ended March 31, 2005, compared to $140,000 for the same period in 2004. The increase is primarily related to higher short-term interest rates in the 2005 period.

Foreign currency gains and losses netted to zero for the three months ended March 31, 2005, compared with a net gain of $30,000 during the same period in 2004. Our foreign currency gains and losses result primarily from fluctuations in local currency equivalents of the U.S. dollar in the U.K. and Europe. Unrealized translation gains and losses are not included in net income, but are reported as a component of other comprehensive income.

Segment Results

We currently operate in two reportable segments, our Medical Devices and Related Supplies segment and our Software Systems segment. Non-recurring costs, if applicable, are excluded from the discussion and analysis

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of the results of our reportable segments; there were no non-recurring costs in the three months ended march 31, 2005 or 2004. Additional financial information about our segments is set forth in Note 6—Segment, Customer, and Geographic Information, of our consolidated financial statements contained in this report.

Medical Devices and Related Supplies Segment

Revenue from our medical devices and related supplies segment increased by $1.4 million, or 17%, to $9.2 million in the three months ended March 31, 2005, from $7.9 million in the same period in 2004. The increase was primarily related to sales of the Echo-Screen OAE device, which Natus gained through its acquisition of Fischer-Zoth in September 2004 and sales of the Company’s neoBLUE line of phototherapy devices for the treatment of newborn jaundice.

The medical device and related supplies segment reported income from operations of $1.1 million in the three months ended March 31, 2005, including approximately $390,000 of depreciation and amortization costs. This segment reported a loss from operations of $230,000 in the three months ended March 31, 2004, including approximately $131,000 of depreciation and amortization costs. The results in 2005 were favorably impacted by cost reductions resulting from the restructuring initiatives implemented in mid 2004. In addition, we benefited from the operating results of Fischer-Zoth, which we acquired in September 2004 and which were accretive to earnings in the 2005 period.

Software Systems Segment

Revenue from our software systems segment decreased by $225,000, or 32%, to $474,000 in the three months ended March 31, 2005, from $699,000 in 2004. We derive revenue in our software systems segment from systems installations and maintenance of those installations. Revenue from systems installations represented 26% of total segment revenue in the 2005 period compared to 37% in the 2003 period. Revenue from systems installations is generally non-recurring and may show more variance from period to period than revenue from maintenance, which is largely recurring.

The software systems segment reported a loss from operations of $276,000 in the three months ended March 31, 2005, including approximately $69,000 of depreciation and amortization costs. This segment reported a loss from operations of $203,000 in the three months ended March 31, 2004, including approximately $119,000 of depreciation and amortization costs. Several factors contributed to the unfavorable results in 2004, including the transitioning of several customers from DOS-based to Windows-based operating systems and development work on several MSDS systems that was not profitable because of contractual obligations. We believe the above-mentioned factors were substantially resolved as of December 31, 2004. We expect that revenue from installations of our Neometrics data management suite may fluctuate from quarter to quarter. For the 2005 period, operating results reflected the current lack of any significant development projects.

Liquidity and Capital Resources

As of March 31, 2005, we had cash, cash equivalents, and short-term investments of $37.8 million, stockholders’ equity of $54.0 million, and working capital of $42.2 million, compared with cash, cash equivalents, and short-term investments of $35.7 million, stockholders’ equity of $52.7 million, and working capital of $40.8 million as of December 31, 2004.

Net cash provided by operating activities was $2.0 million for the three months ended March 31, 2005 and 2004. Cash provided by operations in the 2005 period was favorably impacted by our results of operations, as we reported net income of $910,000. Additional cash was provided by reductions in accounts receivable and inventory totaling $2.0 million. These additions were offset by a reduction in accounts payable of $1.2 million. As a result of the operating cost reduction plan we implemented in June 2004, we believe that our operations will continue to provide additional cash resources in the future. Additionally, our accounts receivable typically decrease during our first quarter compared to the end of the fourth quarter, because of the magnitude and timing of orders shipped during the fourth quarter.

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Our short-term investments are primarily available-for-sale securities with maturities of less than one year, and fluctuations between cash equivalents and short-term investments are often attributable to investment decisions. Excluding purchases and sales of short-term investments, we used $296,000 and $604,000 cash in investing activities in the three months ended March 31, 2005 and 2004 respectively, primarily to acquire property and equipment. We had no material capital expenditure commitments as of March 31, 2005.

We generate cash through financing activities primarily from purchases of our stock by employees, directors and consultants pursuant to our stock option and purchase plans, which were $168,000 and $105,000 in the three months ended March 31, 2005 and 2004, respectively. We purchased $307,000 of treasury stock in the three months ended March 31, 2004 under the terms of the transition agreement between the Company and its former chief executive officer.

Our future liquidity and capital requirements will depend on numerous factors, including the:

In the normal course of business, we enter into obligations and commitments that require future contractual payments. The commitments primarily result from firm, noncancellable purchase orders placed with contract vendors that manufacture some of the components used in our medical devices and related disposable supply products, as well as commitments for leased office, manufacturing, and warehouse facilities. In addition, we have obligations resulting from the transition agreement and release of our former chief executive officer, and two other former executive officers of the Company who left the employ of the company as a result of the June 2004 restructuring.

Recent Accounting Pronouncements

In December 2004, the FASB issued SFAS No. 123(R), Share-Based Payment. On March 29, 2005, the Securities and Exchange Commission (“SEC”) issued Staff Accounting Bulletin No. 107 (“SAB 107”), which provides guidance regarding the adoption of SFAS No. 123(R) and disclosures in Management’s Discussion and Analysis. On April 14, 2005, the SEC issued Release 2005-57, announcing their decision to delay the effective date of SFAS 123(R) from June 30, 2005 to January 1, 2006. SFAS 123(R) will be effective for the first quarter of the Company’s fiscal year beginning January 1, 2006.

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Risk Factors

We have a history of losses, variable quarterly results, and seasonality in the sale of our products, and may not maintain profitability in the future

Since our inception, we have incurred significant net losses and we may incur net losses in the future. As of December 31, 2004, we had accumulated deficits of approximately $36.9 million. Additionally, our revenue and operating results have varied significantly from quarter to quarter in the past and may continue to fluctuate in the future. The following are among the factors that could cause our revenue, operating results, and margins to fluctuate significantly from quarter to quarter:

As a result, we cannot be certain that we will achieve sustained profitability in the future. In addition, we experience seasonality in the sale of our products. For example, our sales typically decline from our fourth fiscal quarter to our first fiscal quarter, due to patterns in the capital budgeting and purchasing cycles of our current and prospective customers, many of which are government agencies. We may also experience declining sales in the third fiscal quarter due to summer holiday and vacation schedules. We anticipate that we will continue to experience these seasonal fluctuations, which may lead to fluctuations in our quarterly operating results. Many of these factors are beyond our control, and we believe that you should not rely on our results of operations for interim periods as an indication of our expected results in any future period.

We anticipate that our expenses may increase substantially in the foreseeable future as we:

As a result of these possible increased expenses, we may need to generate significantly higher revenue to achieve profitability. We cannot be certain that we will achieve profitability in the future or, if we achieve profitability, sustain it.

We have relied, and expect to continue to rely, on sales of our ALGO screening product family for the majority of our revenue, and a decline in sales of these products could cause our revenue to fall

We expect that the revenue from our ALGO screening product family will continue to account for a majority of our revenue for at least the next year. Any factors adversely affecting the pricing of our ALGO

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screening devices and related supplies, or demand for our ALGO screening products, including physician acceptance or the selection of competing products, could cause our revenue to decline and our business to suffer.

In the United States we sell our products in a mature market that is intensely competitive

We face competition from other companies in all of our product lines. Our competitors range from small privately-held companies to multinational corporations, and their product offerings vary in scope and breadth. We do not believe that any single competitor is dominant in any of our product lines.

We derive a significant portion of our revenue from the sale of disposable supplies that are used with our screening devices. In the United States, we sell our supply products in a mature market. Because these products can generate high margins, we expect that our products, particularly our hearing screening supply products, will face increasing competition, including competitors offering lower prices, which could have an adverse affect on our revenue and margins.

We believe that our primary competitive strength relates to the functionality and reliability of our products. Our competitors may have competitive advantages and they may be able to devote greater resources to the development, promotion and sale of their products. Consequently, we may need to increase our efforts, and related expenses for research and development, to maintain or improve our position.

We expect recurring sales to our existing customers to generate a majority of our revenue in the future, and if our existing customers do not continue to purchase products from us, our revenue may decline.

Our business could be harmed if our competitors establish cooperative relationships with large medical device vendors or rapidly acquire market share through industry consolidation

Large medical device vendors may acquire or establish cooperative relationships with our current competitors. We expect that the medical device industry will continue to consolidate. New competitors or alliances among competitors may emerge and rapidly acquire significant market share, which would harm our business and financial prospects.

Our operating results may decline if we do not succeed in developing, acquiring and marketing additional products or improving our existing products

We intend to develop and acquire additional products and technologies for the detection, treatment, monitoring and tracking of common medical conditions in infants and young children. Developing and acquiring new products, and improving our existing products, to meet the needs of our current and future customers requires significant investments in research and development. If we fail to successfully sell new products and update our existing products, our operating results may decline as our existing products reach the end of their commercial life cycles.

We have very limited experience selling and marketing products other than our ALGO hearing screening products, and our failure to develop and manage our sales force or to effectively market and sell our Neometrics products and services, our neoBLUE phototherapy device, or our other products will hurt our revenue and quarterly results

Our sales force has limited experience selling our Neometrics data management systems, our neoBLUE phototherapy product line and related products, and our Echo-Screen devices, and we cannot predict how successful our sales force will be in selling them, and other products we may develop or acquire, in the future. In order to successfully introduce and penetrate the market for these and other products, we must successfully sell them to hospital administrators and government agency purchasing managers who may not be familiar with our ALGO hearing screeners and who may make purchasing decisions on factors that are different from those that

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our sales people are accustomed to. We market almost all of our newborn hearing screening products in the U.S. through a direct sales force. There are significant risks involved in managing our sales force to effectively sell our increasingly diverse lines of products and services. We may be unable to hire and retain a sufficient number of qualified sales people with the skills and training to sell our product line effectively.

In order to accurately recognize revenue on long-term development and implementation contracts associated with our Neometrics newborn screening data management systems, we must be able to accurately estimate the total cost of completing a project. In arriving at these estimates, we must make assumptions about future costs that may prove to be inaccurate.

We recognize revenue from our Neometrics newborn screening data management systems, which are generally highly configurable, on the percentage of completion basis over the development and implementation period of the associated installation. The development and implementation period typically ranges from six to eighteen months. In order to determine percentage of completion, we must be able to accurately estimate the total cost of the development and implementation process. If our estimates of the future costs to be incurred are understated, our future gross profit would be negatively impacted, and the impact could be material to our results of operations.

If we fail in our efforts to educate physicians, government agency personnel, and third-party payors on the effectiveness of our products we will not achieve future sales growth

It is critical to the success of our sales efforts that we educate a sufficient number of clinicians, hospital administrators, and government agencies about our products and the costs and benefits of their use. The commercial success of our products depends upon physician, government agency, and third-party payor confidence in the economic and clinical benefits of our products as well as their comfort with the efficacy, reliability, sensitivity, and specificity of our products. We believe that physicians will not use our products unless they determine, based on published peer-reviewed journal articles and experience, that our products provide an accurate and cost-effective alternative to other means of testing or treatment. For instance, there are currently alternative neonatal hearing screening products, which may be less expensive or may be quicker on a per test basis than our ALGO devices. With respect to our neoBLUE phototherapy product line, initial data from clinical research suggests that the devices may be more effective in treating hyperbilirubinemia than other currently marketed phototherapy products. We cannot be certain that clinical studies will produce results that are favorable to our neoBLUE products. Physicians are traditionally slow to adopt new products, testing practices, and clinical treatments, partly because of perceived liability risks and the uncertainty of third-party reimbursement. If more clinicians, government agencies, and hospital administrators do not adopt our products, we may never have significant revenue or achieve and maintain profitability. Factors that may affect the medical community’s acceptance of our products, some of which are beyond our control, include:

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Our plan to expand our international operations will result in increased costs and is subject to numerous risks; if our efforts are not successful, this could harm our business

The domestic market for our ALGO screening products is mature and we plan to expand our international sales and marketing efforts to increase sales of our products in foreign countries. We must expand the number of distributors who sell our products, or increase our direct international presence, to significantly penetrate international markets. We have only begun over the past three years to significantly develop our distributor and direct sales force outside the U.S. We currently maintain a direct sales force only in the U.K., and increasing our direct sales presence in the U.K. or elsewhere will require us to incur higher personnel and operating costs that may not result in additional revenues. A higher percentage of our sales to international distributors could also impair our revenues due to discount prices that we customarily make available to distributors. We may not realize corresponding growth in revenue from growth in international sales, due to the higher costs of sales outside of the U.S. Even if we are able to successfully expand our international selling efforts, we cannot be certain that we will be able to create or increase demand for our products outside of the U.S. Our international operations are subject to other risks, which include:

If guidelines mandating universal newborn screening do not continue to develop in foreign countries and governments do not mandate testing of all newborns as we anticipate, or if those guidelines have a long phase-in period, our revenues may not grow

We estimate that approximately 90 to 95% of the children born in the U.S. are currently being tested for hearing prior to discharge from the hospital. To date, there has been only limited adoption of newborn hearing screening prior to hospital discharge by foreign governments, and the phase-in period varies from several months to several years. The widespread adoption of these guidelines depends, in part, on our ability to educate foreign government agencies, neonatologists, pediatricians, third-party payors, and hospital administrators about the benefits of universal newborn screening as well as the use of our products to perform the screening and monitoring. Our revenues may not grow if governments do not require universal newborn screening prior to hospital discharge, or if physicians or hospitals are slow to comply with those guidelines, or if the government provides for a lengthy phase-in period for compliance.

Because we rely on distributors or sub-distributors to sell our products in some markets outside of the U.S. and the U.K., our revenue could decline if our existing distributors reduce the volume of purchases from us, or if our relationship with any of these distributors is terminated

We currently rely on our distributors or sub-distributors for a majority of our sales outside the U.S. Our reliance on international distributors has increased with our decision in 2004 to close our Japanese sales

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subsidiary and sell through a distributor in Japan, and our acquisition of Fischer-Zoth, which sells its products through distributors in Europe and Asia. Some distributors also assist us with regulatory approvals and education of physicians and government agencies. We intend to continue our efforts to increase our sales in Europe, Japan and other developed countries. If we fail to sell our products through our international distributors, we would experience a decline in revenues unless we begin to sell our products directly in those markets. We cannot be certain that we will be able to attract new international distributors to market our products effectively or provide timely and cost-effective customer support and service. Even if we are successful in selling our products through new distributors, the rate of growth of our revenue could be harmed if our existing distributors do not continue to sell a large dollar volume of our products. None of our existing distributors are obligated to continue selling our products.

If we terminate our relationships with distributors for poor performance, as we have done in the past, we may be subject to foreign laws governing our relationships with our distributors. These laws may require us to make payments to our distributors even if we terminate our relationship for cause. Some countries require termination payments under local law or legislation that may supercede our contractual relationship with the distributor. These payments could be equal to a year or more of gross margin on sales of our products that the distributor would have earned. Any required payments would adversely affect our operating results.

Our operating results may suffer because of foreign currency exchange rate fluctuations and may require us to engage in foreign currency hedging

Substantially all of our sales contracts to our U.S. based customers provide for payment in U.S. dollars. In addition, sales to most of our international distributors provide for payment in U.S. dollars. However, our revenue and expenses of our U.K. and German subsidiaries are denominated in the applicable foreign currency. Our international revenue as a percentage of our total revenue has grown in recent years, and we expect the percentage to increase further. To date we have not undertaken any foreign currency hedging transactions and, as a result, our future revenue and expenses may be unpredictable due to exchange rate fluctuations that could result in foreign exchange gains and losses associated with the translation of assets denominated in foreign currencies.

If health care providers are not adequately reimbursed for procedures conducted with our devices or supplies, or if reimbursement policies change adversely, we may not be successful marketing and selling new products or technologies

Physicians, hospitals, and government agencies are unlikely to purchase our products if clinicians are not adequately reimbursed for the procedures conducted with our devices or supplies. Unless a sufficient amount of conclusive, peer-reviewed clinical data about our products has been published, third-party payors, including insurance companies and government agencies, may refuse to provide reimbursement. Furthermore, even if reimbursement is provided, it may not be adequate to fully compensate the clinicians or hospitals. Some third-party payors may refuse adequate reimbursement unless the infant has demonstrable risk factors. If health care providers cannot obtain sufficient reimbursement from third-party payors for our products or the screenings conducted with our products, it is unlikely that our products will ever achieve significant market acceptance. Acceptance of our products in international markets will depend upon the availability of adequate reimbursement or funding within prevailing health care payment systems. Reimbursement, funding and health care payment systems vary significantly by country. Although we intend to seek reimbursement or funding approvals in international markets, we may not obtain these approvals in a timely manner or at all.

Even if third-party payors provide adequate reimbursement for procedures conducted with our products, adverse changes in reimbursement policies in general could harm our business. We are unable to predict changes in the reimbursement methods used by third-party payors, particularly those in countries and regions outside the U.S. For example, some payors are moving toward a managed care system in which providers contract to provide comprehensive health care for a fixed cost per person. We cannot assure you that in a managed care system the cost of our products will be incorporated into the overall payment for childbirth and newborn care or that there

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will be adequate reimbursement for our products separate from reimbursement for the procedure. Unless the cost of screening or treatment is reimbursed as a standard component of newborn care, universal screening is unlikely to occur and the number of infants likely to be screened with our products will be substantially reduced.

If we lose our relationship with any supplier of key product components or our relationship with a supplier deteriorates or key components are not available in sufficient quantities, our manufacturing could be delayed and our business could suffer

We contract with third parties for the supply of some of the components used in our products and the production of our disposable products. Some of our suppliers are not obligated to continue to supply us. For certain of these materials and components, relatively few alternative sources of supply exist. In addition, the lead-time involved in the manufacturing of some of these components can be lengthy and unpredictable. During 2002, we experienced delays on the part of a supplier to provide us with volume production of our Flexicoupler supplies. If these, or other, suppliers become unwilling or unable to supply us with components meeting our requirements, it might be difficult to establish additional or replacement suppliers in a timely manner, or at all. This would cause our product sales to be disrupted and our revenue and operating results to suffer.

Replacement or alternative sources might not be readily obtainable due to regulatory requirements and other factors applicable to our manufacturing operations. Incorporation of components from a new supplier into our products may require a new or supplemental filing with applicable regulatory authorities and clearance or approval of the filing before we could resume product sales. This process may take a substantial period of time, and we cannot be assured that we would be able to obtain the necessary regulatory clearance or approval. This could create supply disruptions that would harm our product sales and operating results.

Our sales efforts through group purchasing organizations and sales to high volume purchasers may reduce our average selling prices, which would reduce our revenue and gross profits from these sales

We have entered, and may in the future enter, into agreements with customers who purchase high volumes of our products. Our agreements with these customers may contain discounts from our normal selling prices and other special pricing considerations, which could cause our revenue and profit margins to decline. In addition, we have entered into agreements to sell our products to members of group purchasing organizations, which negotiate volume purchase prices for medical devices and supplies for member hospitals, group practices and other clinics. While we make sales directly to group purchasing organization members, the members of these group purchasing organizations now receive volume discounts off our normal selling price and may sometimes receive other special pricing considerations from us. Sales to members of one group purchasing organization, Novation, LLC, accounted for approximately 20%, 22%, and 29% of our total revenue in the twelve months ended December 31, 2004, 2003 and 2002 respectively. Sales to members of group purchasing organizations accounted for approximately 46%, 39%, and 47% of our total revenue the twelve months ended December 31, 2004, 2003, and 2002 respectively. Other of our existing customers may be members of group purchasing organizations with which we do not have agreements. Our sales efforts through group purchasing organizations may conflict with our direct sales efforts to our existing customers. If we enter into agreements with new group purchasing organizations and some of our existing customers begin purchasing our products through those group purchasing organizations, our revenue and profit margins could decline.

If material weaknesses in the adequacy of the Company’s internal controls over financial reporting are identified and reported as a result of the assessment required by Section 404 of the Sarbanes-Oxley Act of 2002, investors could lose confidence in the reliability of the Company’s financial statements

As directed by Section 404 of the Sarbanes-Oxley Act of 2002, the Securities and Exchange Commission adopted rules requiring public companies to include a report of management on the company’s internal control over financial reporting in their annual reports on Form 10-K. The Company was not subject to these requirements for the fiscal year ended December 31, 2004. The Company is currently performing an

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implementation project in preparation for its first Section 404 reporting requirement that will be effective for the year ending December 31, 2005. This report must contain an assessment by management of the effectiveness of the Company’s internal controls over financial reporting. In addition, the independent registered public accounting firm auditing the Company’s financial statements must also attest to and report on management’s assessment of the effectiveness of the Company’s internal controls over financial reporting as well as the operating effectiveness of the Company’s internal controls. While the Company is expending significant resources in developing the necessary documentation and testing procedures required by Section 404, there is a risk that the Company will not comply with all of the requirements imposed by Section 404. If the Company fails to have an effectively designed and operating system of internal control, it will be unable to comply with the requirements of Section 404 in a timely manner. If the Company does not effectively complete its assessment or if its internal controls are not designed or operating effectively, its independent registered public accounting firm may either disclaim an opinion as it relates to management’s assessment of the effectiveness of its internal control or may issue a qualified opinion on the effectiveness of the company’s internal controls. This could result in an adverse reaction in the financial markets due to a loss of confidence in the reliability of the Company’s financial statements.

Our failure to obtain necessary FDA clearances or approvals or to comply with FDA regulations could hurt our ability to commercially distribute and market our products in the U.S., and this would harm our business and financial condition

Unless an exemption applies, each medical device that we wish to market in the U.S. must first receive one of the following types of FDA premarket review authorizations:

The FDA’s 510(k) clearance process usually takes from three to 12 months, but can take longer. The process of obtaining premarket approval is much more costly, lengthy and uncertain. Premarket approval generally takes from one to three years, but can take even longer. We cannot assure you that the FDA will ever grant either 510(k) clearance or premarket approval for any product we propose to market. Furthermore, if the FDA concludes that future products using our technology do not meet the requirements to obtain 510(k) clearance, we would have to seek premarket approval. We cannot assure you that the FDA will not impose the more burdensome premarket approval requirement on modifications to our existing products or future products, which in either case could be costly and cause us to divert our attention and resources from the development of new products or the enhancement of existing products.

Our business may suffer if we are required to revise our labeling or promotional materials or the FDA takes an enforcement action against us for off-label uses

We may not promote or advertise the ALGO and Echo-Screen devices, MiniMuffs, neoBLUE phototherapy device products, or any future cleared or approved devices, for uses not within the scope of our clearances or approvals or make unsupported promotional claims about the benefits of our products. If the FDA determines that our claims are outside the scope of our clearances or are unsupported it could require us to revise our promotional claims or take enforcement action against us. If we were subject to such an action by the FDA, our sales could be delayed, our revenue could decline, and our reputation among clinicians could be harmed.

Our business would be harmed if the FDA determines that we have failed to comply with applicable regulations or we do not pass an inspection

We are subject to inspection and market surveillance by the FDA concerning compliance with pertinent regulatory requirements. If the FDA finds that we have failed to comply with these requirements, the agency can

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institute a wide variety of enforcement actions, ranging from a public warning letter to more severe sanctions such as:

If we fail to obtain and maintain necessary foreign regulatory approvals in order to market and sell our products outside of the U.S., we may not be able to sell our products in other countries

Our products that are regulated domestically by the FDA are also regulated outside the U.S. by foreign governmental agencies similar to the FDA and are subject to regulatory requirements similar to those of the FDA. The time and cost required to obtain market authorization from other countries and the requirements for licensing a product in another country may differ significantly from the FDA requirements. We may not be able to obtain these approvals without incurring significant expenses or at all, and we may not be able to maintain these approvals once they have been obtained.

If we, or our suppliers, fail to comply with applicable regulations, sales of our products could be delayed and our revenue could be harmed

Every manufacturer of a finished medical device, including Natus and some of our contract manufacturers and suppliers, is required to demonstrate and maintain compliance with the FDA’s quality system regulation and comparable regulations of states and other countries. The FDA enforces the quality system regulation through periodic inspections. Although we have passed inspections in the past, we cannot assure you that we, or our contract manufacturers, will pass any future quality system regulation inspections. If we, or our contract manufacturers, fail one of these inspections in the future, our operations could be disrupted and our manufacturing and sales delayed significantly until we can demonstrate adequate compliance. If we or our contract manufacturers fail to take adequate corrective action in a timely fashion in response to a quality system regulations inspection, the FDA could shut down our or our contract manufacturers’ manufacturing operations and require us, among other things, to recall our products, either of which would harm our business.

Environmental, health and safety regulation by the government could adversely affect our operations.

Our operations are subject to complex and stringent environmental, health, safety and other governmental laws and regulations. While we believe that we have obtained the requisite approvals and permits for our existing operations, and that our business is operated in accordance with applicable laws in all material respects, we remain subject to a varied and complex body of laws and regulations. Existing laws and regulations may be revised or reinterpreted, or new laws and regulations may become applicable to us, that may have a negative effect on our business and results of operations.

We may not be successful in integrating the businesses that we acquire, or such businesses may not be accretive to earnings or perform as projected

We acquired intellectual property assets and technology patents from Pemstar Pacific Consultants during 2002, and we acquired the assets of Neometrics Inc. and affiliated entities during 2003 and we acquired Fischer-

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Zoth in 2004. We expect to make additional acquisitions of products, technology assets or businesses in the future as part of our efforts to increase revenue and expand our product offerings. In addition to direct costs, acquisitions pose a number of risks, including:

While we make efforts to analyze potential acquisitions carefully and to value assets and their related future lives appropriately, we cannot be certain that any completed acquisitions will positively impact our business. If we fail to achieve the anticipated financial, strategic, and other benefits of acquisitions or investments, our operating results may suffer.

Future changes in technology or market conditions could result in adjustments to our recorded asset balance for intangible assets, resulting in additional charges that could significantly impact our operating results

We currently have significant intangible assets, including goodwill and other acquired intangibles. The determination of related estimated useful lives and whether these assets are impaired involves significant judgments. Our ability to accurately predict future cash flows related to these intangible assets might be hindered by events over which we have no control. Due to the highly competitive nature of the medical device industry, new technologies could impair the value of our intangible assets if they create market conditions where our products are no longer competitive. Any future determination that these assets are carried at greater than their fair value could result in additional charges, which could significantly impact our operating results.

We may not be able to preserve the value of our products’ intellectual property because we may not be able to protect access to our intellectual property or we may lose our intellectual property rights due to expiration of our licenses or patents

If we fail to protect our intellectual property rights against infringement by competitors or if our intellectual property rights do not adequately cover the technology we employ, other medical device companies could sell products with features similar to ours, and this could reduce demand for our products. We protect our intellectual property through a combination of patent, copyright, trade secret and trademark laws. The Company holds approximately 27 U.S. patents and 20 foreign patents.

Despite our efforts to protect our proprietary rights, others may attempt to copy or otherwise improperly obtain and use our products or technology. Policing unauthorized use of our technology is difficult and expensive, and we cannot be certain that the steps we have taken will prevent misappropriation. Our means of protecting our proprietary rights may be inadequate. Enforcing our intellectual property rights could be costly and time consuming and may divert our management’s attention and resources. Failing to enforce our intellectual property rights could also result in the loss of those rights.

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Our operating results would suffer if we were subject to a protracted infringement claim or a significant damage award

The medical technology industry has, in the past, been characterized by a substantial amount of litigation and related administrative proceedings regarding patents and intellectual property rights. We expect that medical screening products may become increasingly subject to third-party infringement claims as the number of competitors in our industry segment grows and the functionality of products in different industry segments overlaps. Third parties such as individuals, educational institutions or other medical device companies may claim that we infringe their intellectual property rights. Any claims, with or without merit, could have any of the following negative consequences:

A successful claim of infringement against us could result in a substantial damage award and materially harm our financial condition. Our failure or inability to license the infringed or similar technology could prevent us from selling our products and adversely affect our business and financial results.

Product liability suits against us could result in expensive and time consuming litigation, payment of substantial damages and an increase in our insurance rates

The sale and use of our products could lead to the filing of a product liability claim by someone claiming to have been injured using one of our products or claiming that one of our products failed to perform properly. A product liability claim could result in substantial damages and be costly and time consuming to defend, either of which could materially harm our business or financial condition. We cannot assure you that our product liability insurance would protect our assets from the financial impact of defending a product liability claim. Any product liability claim brought against us, with or without merit, could increase our product liability insurance rates or prevent us from securing any coverage in the future.

We depend upon key employees in a competitive market for skilled personnel, and, without additional employees, we cannot grow or achieve and maintain profitability

Our products and technologies are complex, and we depend substantially on the continued service of our senior management team. The loss of any of our key employees could adversely affect our business and slow our product development process. Our future success also will depend, in part, on the continued service of our key management personnel, software engineers, and other research and development employees and our ability to identify, hire, and retain additional personnel, including customer service, marketing, and sales staff. Hiring research and development, engineering, sales, marketing and customer service personnel in our industry is very competitive due to the limited number of people available with the necessary technical skills and understanding of pediatric audiology, neonatal jaundice management, and neonatal metabolic screening. We may be unable to attract and retain personnel necessary for the development of our business.

We could lose the ability to use net operating loss carryforwards, which may adversely affect our financial results

As of December 31, 2004, we had a total federal and state net operating loss carryforwards of approximately $18.6 million and $6.7 million, respectively, available to reduce future taxable income. These net operating loss carryforwards, if not utilized to offset taxable income in future periods, will expire in various amounts beginning in 2005 through 2023 for state and/or federal income tax purposes. If we continue to have net losses, we may not be able to utilize some or all of our net operating loss carryforwards before they expire.

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In addition, U.S. income tax law imposes limitations on the ability of corporations to use net operating loss carryforwards if the corporation experiences a more than 50% change in ownership during any three-year period. We cannot assure you that we will not take actions, such as the issuance of additional stock, which would cause an ownership change to occur. Accordingly, we may be limited to the amount we can use in any given year, so even if we have substantial net income, we may not be able to use our net operating loss carryforwards before they expire. In addition, the net operating loss carryforwards are subject to examination by the Internal Revenue Service (“IRS”), and are thus subject to adjustment or disallowance resulting from any such IRS examination. We have not undertaken a study to determine whether such limitations exist, and if so, the extent of such limitations. However, we believe it is probable that some amounts of our net operating losses will be affected.

If we have taxable income in the future, and we are unable to fully utilize our net operating loss carryforwards, our future tax payments could be higher and our financial results may suffer.

We may become subject to litigation due to the likely volatility of the public market price of our stock

Our stock price has fluctuated, and may continue to fluctuate, for a number of reasons including:

Securities class action litigation is often brought against a company after a period of volatility of the market price of its stock. If our future quarterly operating results are below the expectations of securities analysts or investors, the price of our common stock would likely decline. Stock price fluctuations may be exaggerated if the trading volume of our common stock is low. Any securities litigation claims brought against us could result in substantial expense and damage awards and divert our management’s attention from running our business.

Our stockholder rights plan and anti-takeover provisions in our charter documents and under Delaware law may make it more difficult to acquire a large portion of our securities, to initiate a tender offer or a proxy contest, or to acquire us, even though such events may be beneficial to our stockholders

We maintain a stockholder rights plan that is designed to deter unsolicited takeover activity with respect to our Company. In addition, provisions of our certificate of incorporation and bylaws may affect the price of our common stock, and could make it more difficult for a third party to remove our management. Further, these provisions may make it more difficult to acquire a large portion of our securities, to initiate a tender offer or a proxy contest or acquire us, even if doing so would benefit our stockholders.

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Forward Looking Statements

This report contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 about Natus Medical Incorporated (“Natus,” “we,” “us,” or “our Company”). These statements include, among other things, statements concerning our expectations, beliefs, plans, intentions, future operations, financial condition and prospects, and business strategies. The words “may,” “will,” “continue,” “estimate,” “project,” “intend,” “believe,” “expect,” “anticipate,” and other similar expressions generally identify forward-looking statements. Forward-looking statements in this Item 2 include, but are not limited to, statements regarding the following: our expectations of future profitability and the generation of positive operating cash flows, the effectiveness and advantages of our products, factors relating to demand for and economic advantages of our products, our plan to develop and acquire additional technologies, products or businesses, our marketing, technology enhancement, and product development strategies, our intention to enter into agreements with group purchasing organizations, our intention to introduce new products and extend existing product lines, our intention to seek strategic partners, our belief that we bring products to market efficiently, development of technologies into successful products, our estimate of the length of time for patents to issue, identity of our competition and factors for competition, our compliance with regulatory requirements and laws, and our plan to seek approval to sell our products in additional countries.

Forward-looking statements are not guarantees of future performance and are subject to substantial risks and uncertainties that could cause the actual results predicted in the forward-looking statements as well as our future financial condition and results of operations to differ materially from our historical results or currently anticipated results. Investors should carefully review the information contained under the caption “Risk Factors” contained in “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” for a description of risks and uncertainties. All forward-looking statements are based on information available to us on the date hereof, and we assume no obligation to update forward-looking statements.

ITEM 3.    Quantitative and Qualitative Disclosures about Market Risk

We develop products in the U.S. and sell those products primarily in the U.S., Europe, and Asia. As a result, our financial results could be affected by factors such as changes in foreign currency exchange rates or weak economic conditions in foreign markets. Most of our sales in Europe and Asia are denominated in U.S. dollars. Prior to our acquisition of our distributor in the U.K., our sales in the U.K. were generally denominated in U.S. dollars. Since that time, our revenue and expenses in the U.K. have been denominated in the applicable foreign currency. With the acquisition of Fischer-Zoth in September 2004, a portion of our sales are now denominated in the Euro. As our sales in currencies other than the U.S. dollar increase, our exposure to foreign currency fluctuations may increase.

In addition, changes in exchange rates also may affect the end-user prices of our products compared to those of our foreign competitors, who may be selling their products based on local currency pricing. These factors may make our products less competitive in some countries.

If the U.S. dollar uniformly increased or decreased in strength by 10% relative to the currencies in which our sales were denominated, our net loss would have correspondingly increased or decreased by an immaterial amount for the three months ended March 31, 2005. For purposes of this calculation, we have assumed that the exchange rates would change in the same direction relative to the U.S. dollar.

Our interest income is sensitive to changes in the general level of interest rates in the U.S., particularly since the majority of our investments are in short-term instruments. However, as substantially all of our short-term investments carry a fixed rate of interest, a hypothetical decrease of 10% in market interest rates would not result in a material decrease in interest income earned on investments held at March 31, 2005 through the date of maturity on those investments.

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The fair value of our available-for-sale securities is also sensitive to changes in the general level of interest rates in the U.S., and the fair value of our portfolio will fall if market interest rates increase. However, since we generally have the ability to hold these investments to maturity, these declines in fair value may never be realized. If market interest rates were to increase by 10% from levels at March 31, 2005, the fair value of our portfolio would decline by an immaterial amount.

All of the potential changes noted above are based on sensitivity analyses performed on our financial position as of March 31, 2005. Actual results may differ as our analysis of the effects of changes in interest rates does not account for, among other things, sales of securities prior to maturity and repurchase of replacement securities, the change in mix or quality of the investments in the portfolio, and changes in the relationship between short-term and long-term interest rates.

In July and August 2001, we received $58.8 million in aggregate net proceeds in connection with our initial public offering after deducting underwriting discounts and commissions, but before deducting offering expenses payable by us. We are currently investing net offering proceeds from the offering pursuant to our investment policy.

We invest our excess cash in short-term investments that carry relatively short maturities because our intent is to have cash resources available for potential acquisitions of additional technologies, products or businesses, and these acquisitions could be significant.

ITEM 4.    Controls and Procedures

Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of our disclosure controls and procedures, as such term is defined under Rules 13a-15(e) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), as of the end of the period covered by this report. Based upon that evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were effective to ensure that material information required to be disclosed by us in the reports that we file or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the Securities and Exchange Commission rules and forms.

There was no significant change in our internal control over financial reporting that occurred during the quarter ended March 31, 2005 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II.    OTHER INFORMATION

ITEM 2.    Changes in Securities and Use of Proceeds

We completed an initial public offering of 5,000,000 shares of our common stock at $11.00 per share in July 2001 and raised $51.2 million after underwriting discounts and commissions, but before expenses payable by us. In August 2001, our managing underwriters exercised their right to purchase an additional 750,000 shares of our common stock at $11.00 per share for net proceeds of $7.7 million after underwriting discounts and commissions but before any expenses payable by us.

During the three months ended March 31, 2005, we used proceeds from our initial public offering to purchase equipment costing approximately $302,000 and for working capital needs.

ITEM 6.    Exhibits

(a)    Exhibits

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SIGNATURES

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

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NATUS MEDICAL INCORPORATED

INDEX TO EXHIBITS

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