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

FORM 10-Q

Commission file number: 001-35403

Verastem, Inc.
(Exact name of registrant as specified in its charter)

(617) 252-9300
(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 Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ý    No o

        Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ý    No o

        Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.

        Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o    No ý

        As of August 10, 2012 there were 21,251,128 shares of Common Stock, $0.0001 par value per share, outstanding.

   

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FORWARD-LOOKING STATEMENTS

        This Quarterly Report on Form 10-Q contains forward-looking statements that involve substantial risks and uncertainties. All statements, other than statements of historical facts, contained in this Quarterly Report on Form 10-Q, including statements regarding our strategy, future operations, future financial position, future revenues, projected costs, prospects, plans and objectives of management, are forward looking statements. The words "anticipate," "believe," "estimate," "expect," "intend," "may," "plan," "predict," "project," "target," "potential," "will," "would," "could," "should," "continue" and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words.

        Forward-looking statements are not guarantees of future performance and our actual results could differ materially from the results discussed in the forward-looking statements. Factors that could cause actual results to differ materially from those in the forward-looking statements include, but are not limited to, our ability to raise additional capital to support our clinical development program and other operations, our ability to develop products of commercial value and to identify, discover and obtain rights to additional potential product candidates, our ability to protect and maintain our intellectual property and the ability of our licensors to obtain and maintain patent protection for the technology or products that we license from them, the outcome of research and development activities, our reliance on third-parties, competitive developments, the effect of current and future legislation and regulation and regulatory actions, as well as other risks described more fully in the Company's Annual Report on Form 10-K and other filings with the SEC.

        As a result of these and other factors, we may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements, and you should not place undue reliance on our forward-looking statements. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures or investments we may make. We do not assume any obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

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PART I—FINANCIAL INFORMATION

Item 1.    Financial Statements (Unaudited).

Verastem, Inc.

(A development stage company)

CONDENSED BALANCE SHEETS

(unaudited)

(in thousands, except per share amounts)

   

See accompanying notes.

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Verastem, Inc.

(A development stage company)

CONDENSED STATEMENTS OF COMPREHENSIVE LOSS

(unaudited)

(in thousands, except per share amounts)

   

See accompanying notes.

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Verastem, Inc.

(A development stage company)

CONDENSED STATEMENTS OF CASH FLOWS

(unaudited)

(in thousands)

   

See accompanying notes.

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Verastem, Inc.

(A development stage company)

NOTES TO CONDENSED FINANCIAL STATEMENTS

1. Summary of significant accounting policies

Basis of presentation

        The accompanying unaudited condensed financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial reporting and as required by Regulation S-X, Rule 10-01. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments, consisting only of normal and recurring adjustments, considered necessary for a fair presentation of the interim financial information have been included. When preparing financial statements in conformity with GAAP, the Company must make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses and related disclosures at the date of the financial statements. Actual results could differ from those estimates. Additionally, operating results for the three and six months ended June 30, 2012 are not necessarily indicative of the results that may be expected for any other interim period or for the fiscal year ending December 31, 2012. For further information, refer to the financial statements and footnotes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2011 as filed with the Securities and Exchange Commission ("SEC") on March 30, 2012.

2. Fair value of financial instruments

        The Company is required to disclose information on all assets and liabilities reported at fair value that enables an assessment of the inputs used in determining the reported fair values. The fair value hierarchy is now established that prioritizes valuation inputs based on the observable nature of those inputs. The fair value hierarchy applies only to the valuation inputs used in determining the reported fair value of the investments and is not a measure of the investment credit quality. The hierarchy defines three levels of valuation inputs:

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Verastem, Inc.

(A development stage company)

NOTES TO CONDENSED FINANCIAL STATEMENTS (Continued)

2. Fair value of financial instruments (Continued)

        The following table presents information about the Company's financial assets that have been measured at fair value at June 30, 2012 and indicates the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands).

        The following table presents information about the Company's financial assets and liabilities that have been measured at fair value at December 31, 2011 and indicates the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands).

        The Company's cash equivalents and investments are comprised of money market accounts, government-sponsored enterprise securities and commercial paper of publicly traded companies secured by the U.S. government. These investments have been initially valued at the transaction price and subsequently valued, at the end of each reporting period, utilizing third party pricing services or other market observable data. The pricing services utilize industry standard valuation models, including both income and market based approaches and observable market inputs to determine value. These observable market inputs include reportable trades, benchmark yields, credit spreads, broker/dealer quotes, bids, offers, current spot rates and other industry and economic events. The Company validates the prices provided by third party pricing services by reviewing their pricing methods and matrices, obtaining market values from other pricing sources, analyzing pricing data in certain instances and confirming that the relevant markets are active. After completing its validation procedures, the

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Verastem, Inc.

(A development stage company)

NOTES TO CONDENSED FINANCIAL STATEMENTS (Continued)

2. Fair value of financial instruments (Continued)

Company did not adjust or override any fair value measurements provided by the pricing services as of June 30, 2012 or December 31, 2011.

        In connection with the license with Poniard Pharmaceuticals Inc., the Company is obligated to issue a warrant to Poniard for the purchase of the Company's common stock upon the first patient dosing using a product licensed under the agreement with Poniard; such warrant will have a three year term from the date of issuance. Prior to an initial public offering, the exercise price of the warrant would have been equal to the fair value of the common stock on the date of the most recent preferred stock financing prior to the issuance of the warrant. Upon the completion of the Company's initial public offering in January 2012, the exercise price of the warrant will be equal to the average closing price of the Company's common stock during the five trading days preceding the issuance of the warrant.

        Prior to January 2012, the obligation to issue the warrant is a level 3 liability because its value measurement is based, in part, on significant inputs not observed in the market and reflects the Company's assumptions as to the expected warrant exercise price and the expected volatility of the Company's common stock. The obligation to issue the warrant was initially recorded at fair value and, prior to the Company's initial public offering, was revalued at the end of each reporting period, with the change in the fair value reported in research and development expense within the statement of operations. Upon the completion of the Company's initial public offering, the obligation to issue the warrant met the definition of an equity-classified derivative instrument since the remaining variable inputs were consistent with those in a fixed for fixed forward option agreement, and was therefore revalued as of January 26, 2012 with the change in fair value reported in research and development expense within the statement of operations. The fair value of the obligation to issue the warrant was then reclassified from liabilities to additional paid-in-capital on the Company's balance sheet. The Company will reassess the equity classification of the obligation to issue the warrant upon a change in facts and circumstances in future reporting periods.

        As of December 31, 2011, the most recent issuance of the Company's preferred stock had been the issuance of the Series C Preferred Stock in November 2011. The Company estimated the value of the obligation to issue the warrant using a probability-weighted scenario analysis that incorporated the probability of the completion of an initial public offering. The analysis included estimating the stock price on each measurement date assuming that achievement of the milestone would be 100% probable. The estimated stock price contingent upon milestone achievement was determined by analyzing the

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Verastem, Inc.

(A development stage company)

NOTES TO CONDENSED FINANCIAL STATEMENTS (Continued)

2. Fair value of financial instruments (Continued)

post-announcement returns for public companies that progressed to Phase 1 clinical trials. The following inputs were used to determine the fair value of the obligation to issue the warrant:

        As of December 31, 2011, the fair value of the obligation to issue the warrant was recorded at $406,000. As a result of the change in inputs to the valuation model, the fair value of the obligation to issue the warrant increased by $431,000 to $837,000 at January 26, 2012. Reasonable changes in the assumptions used to calculate the fair value of the obligation to issue the warrant would not result in significant changes in the fair value.

3. Investments

        The Company's investments are classified as available-for-sale pursuant to Accounting Standards Codification (ASC) 320, Investments—Debt and Equity Securities. The Company classifies investments available to fund current operations as current assets on its balance sheets. Investments are classified as long-term assets on the balance sheets if (i) the Company has the intent and ability to hold the investments for a period of at least one year and (ii) the contractual maturity date of the investments is greater than one year.

        Investments are carried at fair value with unrealized gains and losses included as a component of accumulated other comprehensive loss, until such gains and losses are realized. If a decline in the fair value is considered other-than-temporary, based on available evidence, the unrealized loss is transferred from other comprehensive loss to the statement of operations. There were no charges taken for other-than-temporary declines in fair value of short-term or long-term investments during the three and six months ended June 30, 2012 and 2011. Realized gains and losses are included in interest income in the statement of operations. There were no realized gains or losses recognized during the three and six months ended June 30, 2012 or 2011. The Company utilizes the specific identification method as a basis to determine the cost of securities sold.

        The Company reviews investments for other-than-temporary impairment whenever the fair value of an investment is less than the amortized cost and evidence indicates that an investment's carrying amount is not recoverable within a reasonable period of time. To determine whether an impairment is other-than-temporary, the Company considers the intent to sell, or whether it is more likely than not that the Company will be required to sell, the investment before recovery of the investment's amortized cost basis. Evidence considered in this assessment includes reasons for the impairment, compliance with

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Verastem, Inc.

(A development stage company)

NOTES TO CONDENSED FINANCIAL STATEMENTS (Continued)

3. Investments (Continued)

the Company's investment policy, the severity and the duration of the impairment and changes in value subsequent to year end. As of June 30, 2012, there were no investments with a fair value that was significantly lower than the amortized cost basis or any investments that had been in an unrealized loss position for a significant period.

        Cash, cash equivalents and investments at June 30, 2012 and December 31, 2011 consist of the following (in thousands):

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Verastem, Inc.

(A development stage company)

NOTES TO CONDENSED FINANCIAL STATEMENTS (Continued)

3. Investments (Continued)

4. Prepaid expenses and other current assets

        Prepaid expenses and other current assets consist of the following (in thousands):

5. Accrued expenses

        Accrued expenses consist of the following (in thousands):

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Verastem, Inc.

(A development stage company)

NOTES TO CONDENSED FINANCIAL STATEMENTS (Continued)

6. Net loss per share

        Basic and diluted net loss per common share is calculated by dividing net loss applicable to common stockholders by the weighted-average number of common shares outstanding during the period, without consideration for common stock equivalents. The Company's potentially dilutive shares, which include redeemable convertible preferred stock, outstanding stock options, unvested restricted stock and restricted stock units, are considered to be common stock equivalents and are only included in the calculation of diluted net loss per share when their effect is dilutive. The following table reconciles net loss to net loss applicable to common shareholders (in thousands, except per share data):

The following potentially dilutive securities were excluded from the calculation of diluted net loss per share due to their anti-dilutive effect (in thousands):

7. Redeemable convertible preferred stock

        In November 2010, the Company sold 4 million shares of Series A redeemable convertible preferred stock (Series A Preferred Stock) at a price of $1.00 per share for gross proceeds of $4 million. In accordance with the terms of the Series A Stock Purchase Agreement, the Company sold an additional 12 million shares at $1.00 per share in a second subsequent closing when the milestones necessary to achieve the subsequent closing were met in April 2011. The Company incurred approximately $79,000 of issuance costs as part of the first closing of the Series A Preferred Stock. No additional issuance costs were incurred as part of the second closing.

        In July 2011, the Company sold approximately 16 million shares of series B redeemable convertible preferred stock (Series B Preferred Stock) at a price of $2.00 per share for gross proceeds of

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Verastem, Inc.

(A development stage company)

NOTES TO CONDENSED FINANCIAL STATEMENTS (Continued)

7. Redeemable convertible preferred stock (Continued)

approximately $32 million. The Company incurred approximately $113,000 of issuance costs as part of the closing of the Series B Preferred Stock.

        In November 2011, the Company sold approximately 9.1 million shares of Series C redeemable convertible preferred stock (Series C Preferred Stock) at a price of $2.25 per share for gross proceeds of $20.4 million. The Company incurred approximately $153,000 of issuance costs as part of the closing of the Series C Preferred Stock. The issuance costs associated with the Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock (collectively, the Preferred Stock) were accreted through the earliest redemption date.

        In connection with the Company's initial public offering, as discussed below, all shares of the Company's Preferred Stock were converted into 11,740,794 shares of common stock.

8. Common stock

Reverse Stock Split

        In January 2012, the Company's board of directors and stockholders approved a one-for-3.5 reverse stock split of the Company's common stock. The reverse stock split became effective on January 10, 2012. All share and per share amounts in the financial statements have been retroactively adjusted for all periods presented to give effect to the reverse stock split, including reclassifying an amount equal to the reduction in par value to additional paid-in capital.

Initial Public Offering

        In February 2012, the Company closed the initial public offering (IPO) of its common stock pursuant to a registration statement on Form S-1, as amended. An aggregate of 6,325,000 shares of common stock registered under the registration statement were sold at a public offering price of $10.00 per share, including the over-allotment option. Net proceeds of the IPO were $56.8 million.

9. Stock-based compensation

        In December 2011, the Company adopted the 2012 Incentive Plan (the 2012 Plan). The 2012 Plan became effective upon the closing of the Company's IPO in February 2012. The 2012 Plan provides for the grant of incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock awards, restricted stock units and other stock-based and cash awards. Upon effectiveness, the number of shares of common stock that are reserved under the 2012 Plan is the sum of 3,428,571 shares plus the number of shares that remained available under the 2010 Plan. The number of shares reserved under the 2012 Plan is increased by the number of shares of common stock (up to a maximum of 571,242 shares) subject to outstanding awards under the 2010 Plan that expire, terminate or are otherwise surrendered, cancelled, forfeited or repurchased. The 2012 Plan includes an "evergreen provision" that allows for an annual increase in the number of shares of common stock available for issuance under the 2012 Plan. The annual increase will be added on the first day of each year beginning in 2013 and each subsequent anniversary until the expiration of the 2012 Plan, equal to the lowest of 1,285,714 shares of common stock, 4.0% of the number of shares of common stock outstanding and an amount determined by the board of directors.

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Verastem, Inc.

(A development stage company)

NOTES TO CONDENSED FINANCIAL STATEMENTS (Continued)

9. Stock-based compensation (Continued)

Restricted stock

        A summary of the Company's unvested restricted stock as of June 30, 2012 and changes during the six months ended June 30, 2012 is as follows (in thousands, except per share data):

        As of June 30, 2012, there was $7.7 million of total unrecognized stock-based compensation expense related to unvested restricted stock. The expense is expected to be recognized over a weighted average period 2.3 years.

        A summary of the Company's unvested restricted stock units (RSUs) as of June 30, 2012 and changes during the six months ended June 30, 2012 is as follows (in thousands, except per share data):

        As of June 30, 2012, there was $5.9 million of total unrecognized stock-based compensation expense related to unvested RSUs granted under the 2012 Plan. The expense is expected to be recognized over a weighted-average period of 3.6 years.

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Verastem, Inc.

(A development stage company)

NOTES TO CONDENSED FINANCIAL STATEMENTS (Continued)

9. Stock-based compensation (Continued)

Stock options

        A summary of the Company's stock option activity and related information follows (in thousands, except per share data):

        The fair value of each stock-based award is estimated on the grant date using the Black-Scholes option-pricing model using the following assumptions:

10. Significant Transactions

        On May 11, 2012, the Company acquired from S*Bio Pte Ltd, or S*Bio, compounds identified as dual inhibitors of PI3K and mTOR, including related patent rights. PI3K and mTOR are members of a network of proteins, or signaling pathway, that promotes cancer cell proliferation and survival. Under the agreement, the Company paid S*Bio an upfront fee of $350,000 and has agreed to pay S*Bio milestone payments of up to an aggregate of approximately $21.0 million upon the achievement of specified development and regulatory milestones. In addition, the Company agreed to pay to S*Bio tiered, low to mid single digit royalties as a percentage of annual net sales of each product containing an acquired compound as an ingredient. The obligation to pay royalties continues on a product by product and country by country basis until the expiration of all acquired patent rights covering the product in such country. If the Company obtains a license from a third party in order to commercialize an acquired compound contained in a product in a particular country, then the Company may deduct up to 50% of the amount paid to such third party from the royalty payments that Company owes to S*Bio for such product. The deduction is subject to specified limitations, including that in no event will any such deduction reduce a royalty payment owed to S*Bio by more than 50% as a result of all such deductions in the aggregate. There were no ongoing clinical trials at the time of the acquisition of the

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Verastem, Inc.

(A development stage company)

NOTES TO CONDENSED FINANCIAL STATEMENTS (Continued)

10. Significant Transactions (Continued)

compounds, and the compounds acquired do not have alternative future uses, nor have they reached a stage of technological feasibility. As no process or activities were acquired, the transaction was accounted for as an asset acquisition by recording the $350,000 payment made to S*Bio to research and development expense in the three months ended June 30, 2012.

11. Subsequent Events

        In preparing the financial statements included in this Form 10-Q, the Company has evaluated all subsequent events that occurred after June 30, 2012 through the date of the filing of this Form 10-Q. On July 11, 2012, the Company entered into a license agreement with Pfizer Inc., or Pfizer, under which Pfizer granted the Company worldwide, exclusive rights to research, develop, manufacture and commercialize products containing certain of Pfizer's inhibitors of focal adhesion kinase (the "Products") for all therapeutic, diagnostic and prophylactic uses in humans. The Company is solely responsible, at its own expense, for the clinical development of the Products, which is to be conducted in accordance with an agreed-upon development plan. The Company is also responsible for all manufacturing and commercialization activities at its own expense. Pfizer is required to provide the Company with an initial quantity of clinical supply of one of the Products for an agreed upon price. Under the agreement, the Company made a one-time cash payment to Pfizer in the amount of $1.5 million and issued to Pfizer 192,012 shares of the Company's common stock. Pfizer is also eligible to receive up to $2 million in developmental milestones and up to an additional $125 million based on the successful attainment of regulatory and commercial sales milestones. Pfizer is also eligible to receive high single to mid double digit royalties on future net sales of Products. The Company's royalty obligations with respect to each Product in each country begin on the date of first commercial sale of the Product in that country, and end on the later of 10 years after the date of first commercial sale of the Product in that country or the date of expiration or abandonment of the last claim contained in any issued patent or patent application licensed by Pfizer to the Company that covers the Product in that country. The Company did not have any other material recognizable or unrecognizable subsequent events during this period.

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Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations.

        You should read the following discussion and analysis of our financial condition and results of operations together with our financial statements and related notes appearing elsewhere in this quarterly report. The following discussion contains forward-looking statements that involve risks and uncertainties. Our actual results and the timing of certain events could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including those discussed below and elsewhere in this quarterly report or in our annual report on Form 10-K.

OVERVIEW

        We are a biopharmaceutical company focused on discovering and developing proprietary small molecule drugs targeting cancer stem cells in breast and other cancers along with proprietary companion diagnostics. A cancer stem cell is a particularly aggressive type of tumor cell, resistant to conventional cancer therapy, that we believe is an underlying cause of tumor recurrence and metastasis. Our scientific co-founders, Robert Weinberg, Ph.D., Eric Lander, Ph.D., and Piyush Gupta, Ph.D. made discoveries on the underlying biology of cancer stem cells. We are building on these discoveries to identify and develop small molecule compounds that target cancer stem cells.

        We commenced active operations in the second half of 2010. Our operations to date have been limited to organizing and staffing our company, business planning, raising capital, acquiring and developing our technology, identifying potential product candidates and undertaking preclinical studies of our most advanced product candidates. To date, we have not generated any revenues and have financed our operations with net proceeds from the private placement of our preferred stock and our initial public offering. In February 2012, we completed an initial public offering of 6,325,000 shares of our common stock at a public offering price of $10.00 per share and received net proceeds of approximately $56.8 million, after deducting underwriting discounts and commissions and offering expenses.

        As of June 30, 2012, we had a deficit accumulated during the development stage of $28.2 million. We had net losses of $13.7 million, $3.6 million and $28.2 million for the six months ended June 30, 2012 and 2011 and for the period from August 4, 2010 (inception) to June 30, 2012. We expect to incur significant expenses and increasing operating losses for the foreseeable future. We expect our expenses to increase in connection with our ongoing activities, particularly as we continue the research and development and later initiate clinical trials of, and seek marketing approval for, our product candidates. In addition, if we obtain marketing approval for any of our product candidates, we expect to incur significant commercialization expenses related to product sales, marketing, manufacturing and distribution. Furthermore, we expect to incur additional costs associated with operating as a public company. Accordingly, we will need to obtain substantial additional funding in connection with our continuing operations. Adequate additional financing may not be available to us on acceptable terms, or at all. If we are unable to raise capital when needed or on attractive terms, we would be forced to delay, reduce or eliminate our research and development programs or any future commercialization efforts. We expect our existing cash, cash equivalents and investments will enable us to fund our current operating plan and capital expenditure requirements into late 2015 or early 2016. This is based on our current estimates, and we could use our available capital resources sooner than we currently expect. We will need to generate significant revenues to achieve profitability, and we may never do so.

CRITICAL ACCOUNTING POLICIES AND SIGNIFICANT JUDGMENTS AND ESTIMATES

        We believe that several accounting policies are important to understanding our historical and future performance. We refer to these policies as "critical" because these specific areas generally require us to make judgments and estimates about matters that are uncertain at the time we make the estimate, and different estimates—which also would have been reasonable—could have been used, which would have resulted in different financial results.

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        The critical accounting policies we identified in our most recent Annual Report on Form 10-K for the fiscal year ended December 31, 2011 related to accrued research and development expenses and stock-based compensation. There were no changes to these critical accounting policies in the three or six months ended June 30, 2012. It is important that the discussion of our operating results that follows be read in conjunction with the critical accounting policies disclosed in our Annual Report on Form 10-K, as filed with the SEC on March 30, 2012.

        The Company has elected to follow the extended transition period guidance provided for in Securities Act Section 7(a)(2)(B) for complying with new or revised accounting standards. The Company will disclose the date on which adoption of such standards is required for non-emerging growth companies and the date on which the Company will adopt the recently issued accounting standards.

RESULTS OF OPERATIONS

Comparison of the Three Months ended June 30, 2012 and 2011

        Research and development expense.    Research and development expense for the three months ended June 30, 2012 (2012 Quarter) was $4.7 million compared to $1.7 million for the three months ended June 30, 2011 (2011 Quarter). The $3.0 million increase from the 2011 Quarter to the 2012 Quarter is primarily related to an increase of $1.2 million for personnel costs, including stock-based compensation of $751,000, primarily due to increased headcount and a higher fair value of our common stock, an increase of $1.1 million in contract research organization expense for outsourced biology, chemistry and development services, an increase of $365,000 in license fee expense primarily related to the upfront payment for the Asset Purchase Agreement with S*Bio Pte Ltd. (S*Bio) and an increase of $201,000 for laboratory supplies.

        General and administrative expense.    General and administrative expense for the 2012 Quarter was $2.2 million compared to $759,000 for the 2011 Quarter. The $1.4 million increase from the 2011 Quarter to the 2012 Quarter principally resulted from an increase of $874,000 for personnel costs, including stock-based compensation of $696,000, primarily due to a higher fair value of our common stock, an increase of $318,000 in professional fees primarily related to additional legal and accounting fees for being a publicly traded company, an increase of $100,000 in insurance costs primarily related to being a publicly traded company and an increase of $99,000 in consulting fees.

        Interest income.    Interest income increased to $71,000 for the 2012 Quarter from none for the 2011 Quarter. During the 2011 Quarter, our cash was deposited in non-interest bearing accounts.

        Accretion of preferred stock.    We did not record accretion in the 2012 Quarter due to our initial public offering and the related conversion of all preferred stock into common stock in February 2012 compared to $4,000 in the 2011 Quarter reflecting the periodic accretion of issuance costs associated with our series A preferred stock.

Comparison of the Six Months ended June 30, 2012 and June 30, 2011

        Research and development expense.    Research and development expense for the six months ended June 30, 2012 (2012 Period) was $9.5 million compared to $2.4 million for the six months ended June 30, 2011 (2011 Period). The $7.1 million increase from the 2011 Period to the 2012 Period is primarily related to an increase of $2.6 million for personnel costs, including stock-based compensation of $1.6 million, primarily due to increased headcount and a higher fair value of our common stock, an increase of $2.5 million in contract research organization expense for outsourced biology, chemistry and development services, an increase of $847,000 in license fee expense primarily related to the revaluation of the obligation to issue the warrant to Poniard Pharmaceuticals through January 2012 and the upfront payment for the Asset Purchase Agreement with S*Bio, an increase of $517,000 for laboratory supplies,

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an increase of $259,000 for consulting fees and an increase of $227,000 in occupancy and depreciation due to costs of a new facility in May 2011.

        General and administrative expense.    General and administrative expense for the 2012 Period was $4.3 million compared to $1.2 million for the 2011 Period. The $3.1 million increase from the 2011 Period to the 2012 Period principally resulted from an increase of $1.8 million for personnel costs, including stock-based compensation of $1.3 million, primarily due to higher fair value of our common stock, an increase of $591,000 in professional fees primarily related to additional legal and accounting fees for being a publicly traded company, an increase of $255,000 in consulting fees and an increase of $196,000 in insurance costs primarily related to being a publicly traded company.

        Interest income.    Interest income increased to $128,000 for the 2012 Period from none for the 2011 Period. During the 2011 Period, our cash was deposited in non-interest bearing accounts.

        Accretion of preferred stock.    We recorded $6,000 of accretion in the 2012 Period reflecting the periodic accretion of issuance costs associated with our series A, series B and Series C preferred stock from December 31, 2011 through the date of our initial public offering and conversion of all outstanding shares of preferred stock into common stock upon consummation of our initial public offering compared to $8,000 in the 2011 Period reflecting the periodic accretion of issuance costs associated with our series A preferred stock.

LIQUIDITY AND CAPITAL RESOURCES

Sources of liquidity

        To date, we have not generated any revenues. Since our inception in August 2010, we have financed our operations principally through private placements and through our initial public offering, which we completed in February 2012. As of June 30, 2012, we had $104.3 million in cash, cash equivalents, and investments. We primarily invest our cash equivalents and investments in a U.S. Treasury money market fund, government-sponsored enterprise securities and commercial paper.

Cash flows

        Operating activities.    The use of cash in all periods resulted primarily from our net losses adjusted for non-cash charges and favorable changes in the components of working capital. The significant increase in cash used in operating activities for the 2012 Period compared to the 2011 Period is due to an increase in research and development expenses as we increased our research and development headcount and increased spending on external research and development costs.

        Investing activities.    The cash used in investing activities for the 2012 Period reflects the net purchases of investments of $52.9 million and the purchase of $167,000 of property and equipment. For the 2011 Period, cash used in investing activities reflects the purchase of $385,000 of property and equipment.

        Financing activities.    The cash provided by financing activities in the 2012 Period reflects the $56.8 million of net proceeds from our initial public offering less issuance costs paid in prior periods. The cash provided in the 2011 Period reflects $12.0 million of net proceeds from the sale and issuance of shares of our Series A preferred stock.

Funding requirements

        We expect our existing cash, cash equivalents and investments will enable us to fund our current operating plan and capital expenditure requirements into late 2015 or early 2016.

OFF-BALANCE SHEET ARRANGEMENTS

        We did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements, as defined under Securities and Exchange Commission rules.

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Item 3.    Quantitative and Qualitative Disclosures about Market Risk.

        We are exposed to market risk related to changes in interest rates. We had cash, cash equivalents and investments of $104.3 million as of June 30, 2012, consisting of cash, U.S. Treasury money market fund, government-sponsored enterprise securities and commercial paper. Our primary exposure to market risk is interest rate sensitivity, which is affected by changes in the general level of U.S. interest rates, particularly because most of our investments are in securities guaranteed by the U.S. government. Our available-for-sale securities are subject to interest rate risk and will fall in value if market interest rates increase. Due to the short-term duration most of our investment portfolio and the low risk profile of our investments, an immediate 100 basis point change in interest rates would not have a material effect on the fair market value of our portfolio.

        We contract with CROs and contract manufacturers globally. We may be subject to fluctuations in foreign currency rates in connection with these agreements. Transactions denominated in currencies other than the functional currency are recorded based on exchange rates at the time such transactions arise. As of June 30, 2012, approximately $34,000 of our total liabilities were denominated in currencies other than the functional currency.

Item 4.    Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

        Our management, with the participation of our Chief Executive Officer and Chief Operating Officer, evaluated the effectiveness of our disclosure controls and procedures as of June 30, 2012. The term "disclosure controls and procedures," as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC's rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company's management, including its principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Based on the evaluation of our disclosure controls and procedures as of June 30, 2012, our Chief Executive Officer and Chief Operating Officer concluded that, as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

Changes in Internal Control over Financial Reporting

        No change in our internal control over financial reporting occurred during the fiscal quarter ended June 30, 2012 that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting.

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PART II—OTHER INFORMATION

Item 1.    Legal Proceedings.

        None.

Item 1A.    Risk Factors.

        There have been no material changes to the risk factors included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2011.

Item 2.    Unregistered Sales of Equity Securities and Use of Proceeds.

RECENT SALES OF UNREGISTERED SECURITIES

        Set forth below is information regarding securities sold by us during the six months ended June 30, 2012, that were not registered under the Securities Act of 1933, as amended, or the Securities Act. Also included is the consideration, if any, received by us for the securities and information relating to the section of the Securities Act, or rule of the Securities and Exchange Commission, under which exemption from registration was claimed.

Issuances of securities

        None.

Stock option and other equity awards

        None.

PURCHASE OF EQUITY SECURITIES

        None.

USE OF PROCEEDS FROM REGISTERED SECURITIES

        In February 2012, we completed an initial public offering of 6,325,000 shares of our common stock at a public offering price of $10.00 per share for an aggregate offering price of $63.3 million. The offer and sale of all of the shares in the offering were registered under the Securities Act pursuant to a registration statement on Form S-1 (File No. 333-177677), which was declared effective by the SEC on January 26, 2012, and a registration statement on Form S-1 (File No. 333-179910) filed pursuant to Rule 462(b) of the Securities Act.

        As of June 30, 2012, we have used approximately $9.7 million of the net proceeds primarily to fund the preclinical development of VS-507, VS-4718 and VS-5095, to advance and expand the research and preclinical development of additional product candidates and companion diagnostics and for working capital, capital expenditures and other general corporate purposes. We have not used any of the net proceeds from the offering to make payments, directly or indirectly, to any director or officer of ours, or any of their associates, to any person owning 10 percent or more of our common stock or to any affiliate of ours. We have invested the balance of the net proceeds from the offering in a variety of capital preservation investments, including short-term, investment grade, interest bearing instruments and U.S. government securities. There has been no material change in our planned use of the balance of the net proceeds from the offering as described in our final prospectus filed with the SEC pursuant to Rule 424(b) under the Securities Act.

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Item 5.    Other Information.

        On July 11, 2012, we entered into a license agreement with Pfizer Inc., or Pfizer, under which Pfizer granted us worldwide, exclusive rights to research, develop, manufacture and commercialize products containing certain of Pfizer's inhibitors of focal adhesion kinase (the "Products") for all therapeutic, diagnostic and prophylactic uses in humans. We are solely responsible, at our own expense, for the clinical development of the Products, which is to be conducted in accordance with an agreed-upon development plan. We are also responsible for all manufacturing and commercialization activities at our own expense. Pfizer is required to provide us with an initial quantity of clinical supply of one of the Products for an agreed upon price. Under the agreement, we made a one-time cash payment to Pfizer in the amount of $1.5 million and issued to Pfizer 192,012 shares of our common stock. Pfizer is also eligible to receive up to $2 million in developmental milestones and up to an additional $125 million based on the successful attainment of regulatory and commercial sales milestones. Pfizer is also eligible to receive high single to mid double digit royalties on future net sales of Products. Our royalty obligations with respect to each Product in each country begin on the date of first commercial sale of the Product in that country, and end on the later of 10 years after the date of first commercial sale of the Product in that country or the date of expiration or abandonment of the last claim contained in any issued patent or patent application licensed by Pfizer to us that covers the Product in that country.

Item 6.    Exhibits.

        The exhibits filed as part of this Quarterly Report on Form 10-Q are set forth on the Exhibit Index, which Exhibit Index is incorporated herein by reference.

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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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EXHIBIT INDEX

In accordance with Rule 406T of Regulation S-T, the XBRL related information in Exhibit 101 to this Quarterly Report on Form 10-Q is deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act, is deemed not filed for purposes of Section 18 of the Exchange Act, and otherwise is not subject to liability under these sections.

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