The following discussion and analysis should be read in conjunction with our condensed consolidated financial statements included in Part 1, Item 1 of this report and the information provided in the section entitled "Risk Factors" in Part II, Item 1A of this report.

Our disclosure and analysis in this report contain forward-looking statements, which provide our current expectations or forecasts of future events. Forward-looking statements in this report include, without limitation:

• statements about the expected closing of the acquisition by TIBCO Software Inc.;

• statements about the level of our costs and operating expenses relative to our revenues, and about the expected composition of our revenues;

• information about the anticipated release dates of new products;

• statements about expected future trends for development and sales of our products and services, including the long-term potential of the data analysis market;

• statements about our future capital requirements and the sufficiency of our cash, cash equivalents, investments and available credit to meet these requirements;

• statements about our anticipated use of cash and cash equivalents;

• other statements about our plans, objectives, expectations and intentions; and

• other statements that are not historical facts.

Words such as "will," "plan," "believe," "anticipate," "expect" and "intend" and similar expressions are intended to identify forward-looking statements, but the absence of these words does not necessarily mean that a statement is not forward-looking. Forward-looking statements are based on the judgment and opinions of management at the time the statements are made. Forward-looking statements are subject to known and unknown risks and uncertainties and are based on potentially inaccurate assumptions that could affect their accuracy. Our actual results could differ materially from those expressed or implied in the forward-looking statements for many reasons, including the factors described in the section entitled "Risk Factors" in Part II, Item 1A of this report. Other factors besides those described in this report could also affect actual results.

You should not unduly rely on these forward-looking statements, which speak only as of the date of this report. We undertake no obligation to publicly revise any forward-looking statement to reflect circumstances or events after the date of this report, or to reflect the occurrence of unanticipated events.

Description of Our Business

Formerly Mathsoft, Inc., we reincorporated as Insightful Corporation in Delaware in 2001.

We provide enterprises with predictive analytic solutions designed to drive better decisions faster by revealing patterns, trends and relationships. We are a developer and supplier of software and services that utilize a variety of statistics and data mining techniques to analyze historical data, enabling our customers to understand relationships among and otherwise gain intelligence from that data, make predictions about future events and identify risks and opportunities associated with particular conditions.

Our predictive analytic software and services solve a broad range of problems across multiple industries. For example:

• Financial services customers use our solutions to adjust for risk and perform portfolio optimization in stock portfolios, and to manage their risk by estimating risk and risk-adjusted returns for a wide variety of investment vehicles as well as their overall businesses;

• Pharmaceutical companies utilize our analytic reports and graphics to discern safety and efficacy signals earlier in the drug development/clinical trials process, which helps to decrease their product development costs and time to market; and

• Retailers use our customer analytics solutions to help determine marketing promotions and pricing, reduce customer churn and increase customer retention and lifetime customer value.

Headquartered in Seattle, Washington, we also have offices in North Carolina, New York, the United Kingdom, Switzerland, France and Hong Kong, with distributors around the world. As of June 30, 2008, we employed 103 employees worldwide, of which 98 were full-time employees.

Our products include S-PLUS® and S-PLUS® Enterprise Server, Insightful Miner™ and various S-PLUS® solutions and toolkits for vertical market categories, such as Insightful Clinical Graphics and S+ArrayAnalyzer® for the life sciences sector and S+FinMetrics® for the financial services sector. Our consulting services and training provide specialized expertise and processes for the design, development and deployment of customized analytical solutions. We have customers in a broad range of industries, with a concentration in life sciences and financial services.

We report results in two business segments: Domestic and International. The Domestic segment includes the operations of the United States and Canada, and the International segment includes the operations of all other countries and regions.

Entry into a Material Definitive Merger Agreement

On June 18, 2008, we, TIBCO Software Inc., or TIBCO, and Mineral Acquisition Corporation, a wholly owned subsidiary of TIBCO, or Acquisition Sub, entered into an Agreement and Plan of Merger, or the Merger Agreement, under which Acquisition Sub will be merged with and into Insightful, with Insightful surviving the merger as a wholly owned subsidiary of TIBCO, or the Merger. The consummation of the Merger is subject to the conditions set forth in the Merger Agreement, including approval of the Merger Agreement by our stockholders, the requirement that less than 10% of our issued and outstanding shares exercise their appraisal rights under the Delaware General Corporation Law and other customary closing conditions.

At the effective time of the Merger, each outstanding share of our common stock will be converted into the right to receive an amount in cash equal to $1.87 per share, or the "Price-Per-Share." In connection with the Merger, TIBCO will assume all issued and outstanding options to purchase our common stock granted pursuant to our Amended and Restated 2001 Stock Option and Incentive Plan, and each other outstanding option to purchase shares of our common stock shall be
(a) cancelled at the time of the Merger if such option has an exercise price equal to or greater than the Price-Per-Share or (b) exchanged for a cash payment equal to (i) the amount by which the Price-Per-Share exceeds the per share exercise price for the option multiplied by (ii) the number of shares subject to such option if such option has an exercise price less than the Price-Per-Share.

The Merger Agreement contains customary representations, warranties and covenants, including covenants relating to obtaining the requisite approvals of our stockholders, restricting our solicitation of competing acquisition proposals and the conduct of our business between the date of the signing of the Merger Agreement and the closing of the Merger. The Merger Agreement also provides for the payment of a termination fee of $1.25 million to TIBCO in specified circumstances in connection with the termination of the Merger Agreement.

As of June 30, 2008, we have incurred approximately $1.0 million in acquisition-related costs and have recorded these costs to general and administrative expenses as incurred. Of these expenses, $0.1 million of investment banking fees were incurred and recorded in the fourth quarter of 2007, $0.1 million of investment banking fees were incurred and recorded in the first quarter of 2008, and $0.3 million of investment banking fees and $0.5 million in legal fees were incurred and recorded in the second quarter of 2008. Under the agreement with our investment banking firm, if and when the Merger is consummated, we will owe an additional $0.5 million in investment banking fees. Such additional fees, if paid, will be recorded to general and administrative expense when incurred. Since June 30, 2008, we have incurred, and continue to incur, legal costs related to the Merger, and will record these costs to general and administrative expense as incurred.

On July 24, 2008, we filed a definitive proxy statement related to the proposed Merger with the Securities and Exchange Commission. We will hold a special meeting of stockholders to vote on the proposed Merger at 9:00 a.m. Seattle time on August 29, 2008, at the offices of RR Donnelly, 999 Third Avenue, Suite 3201, Seattle, Washington 98104. Stockholders at the close of business on July 8, 2008, the record date, will be entitled to vote on the Merger.

Critical Accounting Policies and Estimates

We have based our discussion and analysis on our condensed and consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our critical accounting policies and estimates, including those related to revenue recognition, bad debts, intangible assets, restructuring, and contingencies and litigation. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. We believe the following critical accounting policies affect the more significant judgments and estimates used in the preparation of our consolidated financial statements.

Revenue Recognition

We derive our revenues primarily from three sources:

• License revenues, which consist of perpetual and fixed term software license fees;

• Maintenance revenues, which consist of fees for maintenance and support; and

• Professional services revenues, which consist of fees for consulting and training.

We follow very specific and detailed guidelines, discussed in Note 2 of our condensed and consolidated financial statements, in recognizing and measuring revenues. The revenue recognition rules for software companies are complex and require our management to exercise judgment and make a number of estimates. For example, many of our contracts contain multiple element arrangements, which require us to make assumptions and judgments in order to allocate the total price among the various elements we must deliver, to determine whether vendor specific objective evidence of fair value exists for each element, to determine if undelivered elements are deemed essential, and to determine whether and when each element has been delivered. We also evaluate whether there is any material risk of customer non-payment or product returns. Deferred revenues are recognized over time as the applicable revenue recognition criteria are satisfied.

A change in any of these assumptions or judgments, which are made based upon all of the information available to us at the time, could cause a material increase or decrease in the amount of revenue that we report in a particular period.

Stock-Based Compensation Expense

On January 1, 2006, we adopted Statement of Financial Accounting Standards, or SFAS, No. 123 (revised 2004), Share-Based Payment, or SFAS 123R. SFAS 123R requires the measurement and recognition of compensation expense for all share-based payment awards made to employees and directors, including employee stock options and employee stock purchases under our employee stock purchase plan, based on estimated fair values. SFAS 123R supersedes our previous accounting under Accounting Principles Board Opinion No. 25, Accounting for Stock Issued to Employees, for periods beginning in fiscal 2006. We have applied the provisions of the Securities and Exchange Commission's Staff Accounting Bulletin No. 107, Share-Based Payment, in our adoption of SFAS 123R.

We adopted SFAS 123R using the modified prospective transition method, which requires the application of the accounting standard as of January 1, 2006, the first day of our fiscal year 2006. Accordingly, our consolidated financial statements reflect the impact of SFAS 123R as of and beginning on January 1, 2006.

Under the provisions of SFAS 123R, stock-based compensation cost is estimated at the grant date based on the fair-value of the award and is recognized as expense ratably over the requisite service period of the award. Determining the appropriate fair-value model and calculating the fair value of stock-based awards at the grant date requires considerable judgment, including estimating stock price volatility, expected option life and forfeiture rates. We develop our estimates based on historical data and market information, which can change significantly over time. A small change in the estimates used can have a relatively large change in the estimated valuation, and consequently, a material effect of the results of operations.

We calculate the fair value of our stock options granted to employees using the Black-Scholes valuation method, which requires us to make assumptions about risk-free interest rate, expected dividend, expected term (in years), expected volatility and weighted-average fair value. The risk-free interest rate used is based on the implied yield currently available in U.S. Treasury securities at maturity with an equivalent term. We have not declared or paid any dividends and do not currently expect to do so in the future. The expected term of options represents the period that our stock-based awards are expected to be outstanding and is determined based on historical weighted average holding periods and projected holding periods for the remaining unexercised shares. In determining the expected term of options, we consider the vesting schedules and other contractual terms of the awards and expectations of future employee behavior. Expected volatility is based on the annualized daily historical volatility plus implied volatility of our stock price, including consideration of the implied volatility and market prices of traded options for comparable entities within our industry.

Our determination of stock price volatility and option lives, both of which impact the fair value of the option calculated under the Black-Scholes methodology and, ultimately, the expense that will be recognized over the life of the option, involve management's best estimates. SFAS 123R also requires that we recognize compensation expense for only the portion of options expected to vest. Therefore, we applied an estimated forfeiture rate that we derived from historical employee termination behavior. If the actual number of forfeitures differs from our estimates, adjustments to compensation expense may be required in future periods.

The weighted-average estimated fair value of employee stock options granted during the periods presented below was estimated at the date of grant using the Black-Scholes option-pricing model, with the following weighted average assumptions:

                                 Three months ended             Six months ended
                                      June 30,                      June 30,
                                 2008           2007           2008           2007
    Risk-free interest rate         2.91 %         4.89 %         1.81 %         4.57 %
    Expected dividend yield         None           None           None           None
    Expected life             3.75 years     3.50 years     3.73 years     3.69 years
    Expected volatility             57.0 %         62.0 %         57.0 %         63.2 %

Income Taxes

We follow the asset and liability method of accounting for income taxes as set forth by SFAS No. 109, Accounting for Income Taxes, or SFAS 109, and the provisions of Financial Accounting Standards Board, or FASB, Interpretation No. 48, Accounting for Uncertainty in Income Taxes-an interpretation of FASB Statement No. 109, or FIN 48 . FIN 48 clarifies the accounting and disclosure for uncertainty in income taxes by prescribing the minimum recognition threshold a tax position is required to meet before being recognized in the financial statements. It also provides guidance on derecognition, measurement, classification, interest and penalties, accounting for interim periods, disclosure and transition, and clearly excludes income taxes from the scope of FASB Statement No. 5, Accounting for Contingencies.

Under SFAS 109 and FIN 48, certain assumptions are made that represent significant estimates. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between financial statement carrying amounts of existing assets and liabilities and their respective tax basis, net of operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. FIN 48 requires a company to recognize the impact of a tax position in its financial statements if that position is more likely than not to be sustained upon audit, based on the technical merits of the position. The provisions of FIN 48 are effective for fiscal years beginning after December 31, 2006, with the cumulative effect of the change in accounting principle recorded as an adjustment to opening retained earnings. The adoption of FIN 48 did not have a material effect on our results of operations or financial condition.

We have adopted a policy of classifying interest and penalties associated with income tax matters as general and administrative expense (rather than to income tax expense) when incurred.

We have incurred net operating losses. We continue to maintain a valuation allowance for the full amount of the net deferred tax asset balance associated with our net operating losses because sufficient uncertainty exists regarding our ability to realize such tax assets in the future. There were no unrecognized tax benefits as June 30, 2008 or December 31, 2007.

Our tax returns for U.S. tax years 2004, 2005, 2006 and 2007 are subject to potential examination by the Internal Revenue Service. In addition, our tax returns for U.S. tax years 1993 to 2000 and tax year 2002 may be subject to examination by the Internal Revenue Service to the extent that we utilize the net operating loss carryforward from those years in our current or future year tax returns. In the United Kingdom and France, our tax returns for tax years 2006 and 2007 are subject to potential examination, while in Switzerland our returns for tax years from 1998 through 2007 are subject to potential examination. We are not currently under income tax examination by any tax jurisdiction.

Sales Taxes

During the ordinary course of business, there are many transactions for which the ultimate sales tax determination is uncertain. If necessary, we establish accruals for sales tax-related uncertainties based on estimates of whether, and to the extent which, additional sales taxes, interest, and penalties will be due. These accruals are adjusted in light of changing facts and circumstances, such as the closing of a sales tax audit, a change in the determination of whether we have a sufficient presence in a particular state such that we are required to register and collect and pay sales taxes in that jurisdiction, or the expiration of a relevant statute of limitations.

We sell to customers in almost every state in the United States. There is a great variation in the tax rules from state to state, including the rules that determine whether a company has a sufficient presence in a particular jurisdiction such that it is required to register and collect and pay taxes in that jurisdiction. We are registered in multiple states and local jurisdictions and we remit required state and local taxes on related business operations in those states.

In addition to our judgments and use of estimates, there are inherent uncertainties surrounding taxes that could result in actual amounts that differ materially from our estimates. Accordingly, our actual sales tax obligation may exceed the estimate established at any point in time. Any changes in circumstances related to these contingencies could have a material effect on our financial condition, results of operations and cash flows.

Sales Returns

We provide an estimated reserve for return rights at the time of sale. We offer our customers a 30-day return policy on all of our products. Generally, refunds are provided to customers upon return to us of the complete product package, including all original materials and the CD-ROM or other media. Our provision for sales returns is estimated based on historical returns experience and our judgment of the likelihood of future returns.

Bad Debts

A considerable amount of judgment is required when we assess the ultimate realization of receivables, including assessing the aging of the amounts and reviewing the current creditworthiness of our customers. Customer creditworthiness is subject to many business and finance risks facing each customer and is subject to sudden changes.

Impairment of Goodwill and Other Long-Lived Assets

We evaluate goodwill arising from acquired businesses for potential impairment on an annual basis, using an October 1 measurement date. This evaluation requires significant judgment and estimation. In addition, throughout the year we consider whether there are impairment indicators that would require an immediate evaluation of impairment. Our judgments regarding the existence of impairment indicators are based on market conditions, operational performance of our acquired businesses, and various other factors. Future events could cause us to conclude that impairment indicators exist and that goodwill associated with our acquired business is impaired. Impairment losses, if any, will be charged to earnings in the period in which they are identified.

Contingencies

We are periodically engaged in various claims, legal proceedings or other circumstances arising in the ordinary course of business for which the outcome is not currently known. We are required to assess the likelihood of any adverse judgments or outcomes to these matters as well as potential ranges of possible losses. A determination of the amount of reserves required, if any, for these contingencies are made after analysis of each individual matter. The required reserves, if any, may change in the future due to new developments in each matter or changes in approach.

Results of Operations

Revenues by Type

We have three classifications of revenue on our statement of income: software
licenses, maintenance, and professional services and other. Revenues by type are
as follows:




                                      Three Months Ended         Percent          Six Months Ended         Percent
                                           June 30,              Increase             June 30,             Increase
                                       2008          2007       (Decrease)        2008         2007       (Decrease)
Revenues (in thousands):
Software licenses                   $    1,703      $ 1,718             (1 )%   $  3,378     $  3,761            (10 )%
Software maintenance                     2,305        2,043             13 %       4,408        4,057              9 %
Professional services and other          1,382        1,758            (21 )%      2,489        3,886            (36 )%

Total                               $    5,390      $ 5,519             (2 )%   $ 10,275     $ 11,704            (12 )%

Revenues by type (as % of total
revenues):
Software licenses                           32 %         31 %                         33 %         32 %
Software maintenance                        43 %         37 %                         43 %         35 %
Professional services and other             25 %         32 %                         24 %         33 %

Total                                      100 %        100 %                        100 %        100 %

Total Revenues

Total revenues for the three months ended June 30, 2008 were $5.4 million, representing a decrease of 2%, or $0.1 million, compared to the corresponding period of 2007. Total revenues for the six months ended June 30, 2008 were $10.3 million, representing a decrease of 12%, or $1.4 million, compared to the corresponding period of 2007. We believe this decrease resulted from the following factors:

• We experienced significant turnover in our sales force in the third and fourth quarters of 2007, continuing into the first and second quarters of 2008. Two sales vice presidents, one for North America and one for Europe, resigned in the fourth quarter of 2007 and were replaced by one worldwide vice president of field operations in the first quarter of 2008. This transition and significant turnover at the sales representative level over the past four quarters harmed, and continues to harm, our ability to generate sales.

• Our business in the financial services market has declined, especially in the United States. In addition to being affected by the sales turnover described above, we believe our ability to sell to financial services customers continued to be harmed by the sub-prime mortgage crisis and other turmoil in the financial services market, especially in the United States. We continued to do strong business with our large European financial services customer, but we did not generate the revenue from new financial services customers that we had anticipated.

• The sales cycles for transactions that involve large scale deployments have been taking 6 to 12 months, and shifting our focus to larger, more complex enterprise sales is lengthening our sales cycles even further. We closed fewer large solutions deals in the first and second quarters of 2008, compared to the first and second quarters of 2007, and as a result generated $1.4 million less in professional services revenue for the six months ended June 30, 2008 as compared to the corresponding period of 2007.

• Our business of selling desktop S-PLUS software for use by individual statisticians continued to decline, impacted by the soft economy and increased competition from R. We believe that R has made, and will continue to make, inroads in many organizations, especially at the desktop level.

Software License Revenues

Software license revenues consist principally of fees generated from granting rights to use our software products under both perpetual and fixed-term license agreements.

Total software license revenues decreased by 1%, or $15,000, during the three months ended June 30, 2008, and by 10% or $0.4 million, during the six months ended June 30, 2008, as compared to the corresponding periods of 2007. These . . .