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File No. 001-13252
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
FORM 11-K
 
(Mark One)
     
þ   ANNUAL REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended March 31, 2008
OR
     
o   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                      to                     
A. Full title of the plan and address of the plan, if different from that of the issuer named below:
McKesson Corporation Profit-Sharing Investment Plan
B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:
McKesson Corporation
McKesson Plaza
One Post Street, San Francisco, CA 94104
Telephone (415) 983-8300
 
 

 


 

McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
TABLE OF CONTENTS
         
Item   Page
    3  
 
       
FINANCIAL STATEMENTS as of and for the Years Ended March 31, 2008 and 2007:
       
 
       
    4  
 
       
    5  
 
       
    6-15  
 
       
SUPPLEMENTAL SCHEDULE AS OF MARCH 31, 2008:
       
 
       
    16  
 
       
EXHIBITS:
       
 
       
23.1 Consent of Independent Registered Public Accounting Firm
       
 EXHIBIT 23.1
     All other schedules required by Section 2520.103-10 of the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974 have been omitted because they are not applicable.

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Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
McKesson Corporation Profit-Sharing Investment Plan
San Francisco, California
     We have audited the accompanying statements of net assets available for benefits of the McKesson Corporation Profit-Sharing Investment Plan (the “Plan”) as of March 31, 2008 and 2007, and the related statements of changes in net assets available for benefits for the years then ended. These financial statements are the responsibility of the Plan’s management. Our responsibility is to express an opinion on these financial statements based on our audits.
     We conducted our audits in accordance with standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Plan is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Plan’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.
     In our opinion, such financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of March 31, 2008 and 2007, and the changes in net assets available for benefits for the years then ended in conformity with accounting principles generally accepted in the United States of America.
     As discussed in Note 2, the Plan financial statements reflect the adoption of Financial Accounting Standards Board Staff Position, FSP AAG INV-1 and Statement of Position 94-4-1, Reporting of Fully Benefit-Responsive Investment Contracts Held by Certain Investment Companies Subject to the AICPA Investment Company Guide and Defined-Contribution Health and Welfare and Pension Plans.
     Our audits were conducted for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental schedule listed in the Table of Contents is presented for the purpose of additional analysis and is not a required part of the basic financial statements, but is supplementary information required by the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. This schedule is the responsibility of the Plan’s management. Such schedule has been subjected to the auditing procedures applied in our audit of the basic 2008 financial statements and, in our opinion, is fairly stated in all material respects when considered in relation to the basic financial statements taken as a whole.
Deloitte & Touche LLP
San Francisco, California
September 19, 2008

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
MARCH 31, 2008 AND 2007 (IN THOUSANDS)
                                                 
    2008     2007  
    Participant     Non-Participant             Participant     Non-Participant        
    Directed     Directed     Plan Total     Directed     Directed     Plan Total  
ASSETS:
                                               
Cash and cash equivalents:
                                               
Allocated
  $       $ 2,229     $ 2,229     $       $ 3,145     $ 3,145  
Unallocated
            25       25               66       66  
 
                                   
Total cash & cash equivalents
          2,254       2,254             3,211       3,211  
 
                                   
Investments at Fair Value:
                                               
Mutual funds and brokerage link
    792,874               792,874       679,403               679,403  
Common/ collective trusts
    263,945               263,945       238,177               238,177  
Separately managed accounts
    169,834               169,834       184,849               184,849  
Standish Mellon Stable Value Fund
    125,120               125,120       110,128               110,128  
Participant loans
    26,078               26,078       21,023               21,023  
McKesson Corp. common stock:
                                               
Allocated
            383,445       383,445               447,214       447,214  
Unallocated
            7,746       7,746               59,918       59,918  
Employee stock fund
    47,683               47,683       55,024               55,024  
 
                                   
Total Investments at Fair Value
    1,425,534       391,191       1,816,725       1,288,604       507,132       1,795,736  
 
                                   
Receivables:
                                               
Dividends and interest on:
                                               
Allocated
            446       446               470       470  
Unallocated
            21       21               70       70  
Due from broker for securities sold —allocated
            966       966                        
 
                                   
Total receivables
          1,433       1,433             540       540  
 
                                   
Total assets
    1,425,534       394,878       1,820,412       1,288,604       510,883       1,799,487  
 
                                   
LIABILITIES:
                                               
Line of credit — on unallocated stock
            700       700               3,000       3,000  
ESOP promissory notes payable — on unallocated stock
            2,503       2,503               11,353       11,353  
Accrued interest — unallocated stock
            108       108               490       490  
Accrued other
            844       844               629       629  
 
                                   
Total liabilities
          4,155       4,155             15,472       15,472  
 
                                   
NET ASSETS Available for Benefits at Fair Value
    1,425,534       390,723       1,816,257       1,288,604       495,411       1,784,015  
ADJUSTMENT from fair value to contract value for fully benefit-responsive investment contracts
    303               303       914               914  
 
                                   
NET ASSETS Available for Benefits
  $ 1,425,837     $ 390,723     $ 1,816,560     $ 1,289,518     $ 495,411     $ 1,784,929  
 
                                   
     See notes to financial statements.

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
YEARS ENDED MARCH 31, 2008 AND 2007 (IN THOUSANDS)
                                                 
    2008     2007  
    Participant     Non-Participant             Participant     Non-Participant        
    Directed     Directed     Plan Total     Directed     Directed     Plan Total  
INVESTMENT INCOME (LOSS):
                                               
Net (depreciation) appreciation in fair value of investments
  $ (116,973 )   $ (44,943 )   $ (161,916 )   $ 48,413     $ 54,022     $ 102,435  
Dividends and interest
    75,644       2,587       78,231       61,197       2,977       64,174  
 
                                   
Investment income (loss)
    (41,329 )     (42,356 )     (83,685 )     109,610       56,999       166,609  
 
                                   
CONTRIBUTIONS:
                                               
Participants
    125,573               125,573       105,059               105,059  
Employer
            11,952       11,952               12,036       12,036  
ERISA litigation settlement proceeds
                          13,981               13,981  
 
                                   
Total contributions
    125,573       11,952       137,525       119,040       12,036       131,076  
 
                                   
DEDUCTIONS:
                                               
Benefits paid to participants
    134,980       30,475       165,455       120,440       34,905       155,345  
Interest expense
            463       463               1,348       1,348  
Administrative fees
    1,100       90       1,190       1,082       80       1,162  
 
                                   
Total deductions
    136,080       31,028       167,108       121,522       36,333       157,855  
 
                                   
(DECREASE) INCREASE IN NET ASSETS BEFORE TRANSFERS AND MERGERS
    (51,836 )     (61,432 )     (113,268 )     107,128       32,702       139,830  
TRANSFERS TO PARTICIPANT DIRECTED INVESTMENTS
    43,256       (43,256 )           48,090       (48,090 )      
MERGER OF NET ASSETS FROM OTHER PLANS
    144,899               144,899       14,242               14,242  
 
                                   
INCREASE (DECREASE) IN NET ASSETS
    136,319       (104,688 )     31,631       169,460       (15,388 )     154,072  
Net assets at beginning of year
    1,289,518       495,411       1,784,929       1,120,058       510,799       1,630,857  
 
                                   
Net assets at end of year
  $ 1,425,837     $ 390,723     $ 1,816,560     $ 1,289,518     $ 495,411     $ 1,784,929  
 
                                   
See notes to financial statements.

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
NOTES TO FINANCIAL STATEMENTS
YEARS ENDED MARCH 31, 2008 AND 2007
1. PLAN DESCRIPTION
     The following brief description of the McKesson Corporation Profit-Sharing Investment Plan (the “PSIP” or the “Plan”) is provided for general information purposes only. Participants should refer to the Plan document for more complete information. The PSIP is a defined contribution plan covering all persons who have completed two months of service and are regular or part-time employees, or are casual employees who have completed a year of service in which they worked at least 1,000 hours in a year, at McKesson Corporation (the “Company” or “McKesson”) or a participating subsidiary, except employees covered by a collectively bargained pension plan. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”).
     Fidelity Management Trust Company (“Fidelity”) is the trustee of the Plan.
     The Plan is comprised of Participant Directed and Non-Participant Directed Investments, as described below:
     A Participant Directed Investments
     Contributions — The Plan qualifies as a safe harbor plan as described in Internal Revenue Code sections 401(k) (12) and 401(m) (11). Participants may make pretax contributions from 1% to 20% of eligible pay, limited to $15,500 for calendar year 2008 and 2007. Total contributions are limited to the lesser of $46,000 for calendar year 2008 ($45,000 for calendar year 2007) or 100% of taxable compensation per calendar year. Participants 50 years of age or older may also elect to make pretax catch-up contributions of up to 67% of pay, limited to $5,000 for calendar year 2008 and calendar year 2007. Participants may also contribute amounts representing distributions from other qualified plans.
     Participant Accounts — Individual accounts are maintained for each Plan participant. Each participant’s account is credited with the participant’s contribution and an allocation of earnings, and charged with withdrawals and an allocation of losses and administrative expenses. Allocations are based on participant earnings, or account balances, as defined in the Plan document. The participant is entitled to a benefit upon retirement or separation from employment based upon the vested portion of the participant’s account.
     Vesting — Participant contributions and earnings thereon are 100% vested at all times.
     Investment Options — Upon enrollment in the PSIP, a participant may direct contributions in 1% increments to any of the investments within the Plan. The following are descriptions from each fund’s prospectus or fund manager’s report:
  McKesson Corporation Employee Company Stock Fund (the “Employee Stock Fund”) represents shares invested in Company common stock with participant contributions and transfers from the Employer Company Stock Allocated Fund.
  Brokerage Link provides access to a discount brokerage account which allows participants to develop a self-directed brokerage option.
  SSgA Bond Index Fund is a commingled pool that seeks to provide investment results that correspond to the total return of the bonds in the Lehman Brothers Aggregate Bond Index.
  SSgA Balanced Fund is a custom mix of commingled pools that invests 60% in SSgA S&P 500 Index Fund and 40% in SSgA Bond Index Fund.
  Wellington Management Small Cap Portfolio invests in stocks within the market capitalization range of the Russell 2000 Index. This is a separately managed account, not a mutual fund, which seeks long-term growth by investing in the stocks of small companies.
  SSgA S&P 500 Index Fund is a commingled pool that invests in stocks in the benchmark S&P 500 Index and attempts to duplicate the investment results of that index.

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED MARCH 31, 2008 AND 2007
  Dodge & Cox Large Cap Value Fund invests in the common stock of companies when the fund managers believe the long-term earnings prospects are not reflected in the current price. This is a separately managed account, not a mutual fund.
  Standish Mellon Stable Value Fund invests in fixed-income investments issued by life insurance companies and financial institutions. This is a separately managed account, not a mutual fund.
  Fidelity Diversified International Fund invests primarily in a diversified portfolio of equity securities of companies located outside of the United States.
  Rainier Large Cap Growth Portfolio invests primarily in the common stock of large companies, with a goal of long-term capital growth. This is a separately managed account, not a mutual fund.
  Mutual Fund Window provides access to approximately 260 mutual fund options from more than 20 investment companies.
     Loans — Participants may apply for a loan from the Plan. The total amount owed to the Plan by an individual participant cannot exceed the lowest of: (i) 50% of such participant’s vested account balance, (ii) $50,000 as adjusted for certain items specified in the Plan document, or (iii) the value of the participant’s account attributable to basic, supplemental, catch-up and rollover contributions. Loans bear interest at the then current prime rate of interest on the loan date plus 1%. Contractual interest rates ranged from 4% to 11% in fiscal 2008 and 2007. Loans may be repaid over a period not to exceed 5 years, except for residential loans, which must not exceed a term of 10 years. Principal repayments and interest are paid through payroll deductions. For participants who have been terminated or are on leave and are no longer receiving a paycheck, loan repayments may be made via monthly coupon payments. Participant loans totaled $26,078,000 and $21,023,000 at March 31, 2008 and 2007.
     Payment of Benefits — Participants have the right to receive a total distribution of the value of their vested accounts from the PSIP at the time of retirement, death, disability or termination of employment. In general, benefit payments are made in a lump sum cash amount, but participants also may elect a distribution in the form of installments. Former employees may remain participants in the Plan.
     Transfers from Other Qualified Plans — In April 2007, the net assets from the Medcon Telemedicine Technology, Inc. 401(k) Profit Sharing Plan totaling $234,000 were merged into the Plan. The net assets including participant loans from the Per Se Technologies Employee Retirement Savings Plan and the NDC Health Corporation 401(k) Plan totaling $92,127,000 and $52,538,000 were merged into the Plan in July and June 2007.
     In July 2006, the net assets from the D&K Healthcare Resources, Inc. Profit Sharing Plan and Trust totaling $14,242,000 were merged into the Plan.
     B Non-Participant Directed Investments
     General — The McKesson Corporation Employer Company Stock Funds (Allocated and Unallocated) (the “Employer Stock Funds”) consist of a leveraged Employee Stock Ownership Plan (“ESOP”). Generally, the Allocated fund represents shares that have been allocated to participants through employer matching contributions and have not been directed to other investment options by the participants. This fund is classified as “non-participant directed” because only the Company can direct shares into this account. The Unallocated fund represents ESOP shares to be used for the future employer matching contributions. Participants can transfer employer matching contributions from the allocated fund to other participant directed investments, including the Employee Stock Fund, as soon as they are made. Total transfers to the participant directed investments for the years ended March 31, 2008 and 2007 were $43,256,000 and $48,090,000. In fiscal 2008, employer contributions were funded with 876,000 shares from the ESOP and 3,000 shares of common stock from the Company. In fiscal 2007, employer contributions were funded with 839,000 shares from the ESOP.
     Employer Matching Contributions to Participants Accounts — Effective the last business day of each month throughout the fiscal year, participant accounts are credited with matching Company contributions, primarily in the form of the Company’s common stock based on a percentage of the participants’ basic contributions. Effective April 1, 2005, the Plan provides for Company matching contributions to all participants who make elective deferrals in an amount equal to 100% of the employee’s deferral for the first 3% of

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED MARCH 31, 2008 AND 2007
pay deferred and 50% of the employee’s deferral for the next 2% of pay deferred. An additional annual matching contribution may be granted at the discretion of the Company to plan participants. The Plan was amended effective April 1, 2007 to provide for an additional matching employer contribution, the amount equal to the difference between (1) a participant’s match determined based on the participant’s compensation and eligible contributions for the entire Plan Year and (2) the amount of the participant’s match contributed to the plan on a monthly basis for the Plan Year.
     The Internal Revenue Code requires that shares be released for employer contributions according to a formula based on debt service payments under the leveraged ESOP component of the Plan.
     The Company contributed $198,000 in share contributions to fund the company matching contribution in the year ended March 31, 2008. In fiscal 2007, the Company identified certain errors in calculating the number of shares to be released which resulted in an over release for fiscal 2006. To correct this error, the Company contributed 26,000 shares to the Plan in fiscal 2007.
     Employer Contributions — Dividends on unallocated shares of Company common stock are used to pay the obligations under the ESOP loans. Under the terms of the loan agreements, the Company is required to make cash contributions to the extent that the dividends are not sufficient to service the debt. To pay down such debt obligations, cash contributions amounted to $11,754,000 and $11,552,000 in the years ended March 31, 2008 and 2007.
     Vesting — Employer contributions made on or after April 1, 2005 are 100% vested immediately. Employer contributions made before April 1, 2005 vest ratably over five years of service (20% vests each year over five years). Generally, for employer contributions made before April 1, 2005, 100% vesting is provided upon retirement, disability, death, termination of the Plan, or a substantial reduction in work force initiated by the Company for affected participants. Dividends automatically reinvested in McKesson common stock on and after January 1, 2003 are also 100% vested at all times.
     Forfeitures — A rehired employee who has met certain levels of service prior to termination may be entitled to have forfeited interests in the PSIP reinstated. Each fiscal year, forfeited interests are used to reinstate previously forfeited amounts of rehired employees and to pay other Plan expenses as appropriate. Forfeitures for the years ended March 31, 2008 and 2007 of employer contributions made before April 1, 2005 were $983,000 and $1,028,000.
     Diversification of Stock Fund — Participants may transfer Company contributions to other investment funds as soon as they are made. In addition, participants may diversify past vested Company contributions without restrictions.
     Payment of Benefits — Distributions are made only upon participant retirement, death (in which case, payment shall be made to the participant’s beneficiary), or other termination of employment with the Company. Distributions are made in cash or, if a participant elects, in the form of Company common shares plus cash for any fractional share.
     McKesson Corporation Employer Company Stock Funds (Allocated and Unallocated) — The following is ESOP information regarding the shares of McKesson Corporation common stock held as of March 31 (in thousands):
                                                 
    2008     2007  
    Number of             Fair Value of     Number of             Fair Value of  
    Shares     Cost Basis     Shares     Shares     Cost Basis     Shares  
Allocated
    7,322     $ 251,438     $ 383,445       7,639     $ 237,751     $ 447,214  
Unallocated
    148       2,787       7,746       1,024       19,283       59,918  
 
                                   
Total
    7,470     $ 254,225     $ 391,191       8,663     $ 257,034     $ 507,132  
 
                                   
     The per share fair market value of McKesson Corporation common stock at March 31, 2008 and 2007 was $52.37 and $58.54.

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED MARCH 31, 2008 AND 2007
     The following is a reconciliation of the allocated and unallocated net assets of the Non-Participant Directed Investments at fair value for the years ended March 31 (in thousands):
                                                 
    2008     2007  
    Allocated     Unallocated     Total     Allocated     Unallocated     Total  
Net Assets (beginning of year)
  $ 450,199     $ 45,212     $ 495,411     $ 440,300     $ 70,499     $ 510,799  
Net (depreciation) appreciation
    (45,084 )     141       (44,943 )     47,323       6,699       54,022  
Dividends and interest
    2,436       151       2,587       2,632       345       2,977  
Employer contributions
    198       11,754       11,952               12,036       12,036  
Benefits paid to participants
    (30,475 )             (30,475 )     (34,905 )             (34,905 )
Interest expense
            (463 )     (463 )             (1,348 )     (1,348 )
Administrative fees
    (90 )             (90 )     (80 )             (80 )
Allocation of 876 shares, at market
    52,314       (52,314 )                            
Allocation of 839 shares, at market
                            43,019       (43,019 )        
Transfers to participant directed investments
    (43,256 )             (43,256 )     (48,090 )             (48,090 )
 
                                   
Net Assets (end of year)
  $ 386,242     $ 4,481     $ 390,723     $ 450,199     $ 45,212     $ 495,411  
 
                                   
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
     Basis of Accounting — The financial statements of the Plan are prepared in accordance with accounting principles generally accepted in the United States of America.
     Cash Equivalents — The Plan considers all highly liquid debt instruments with remaining maturities of less than three months at the date of purchase to be cash equivalents.
     Use of Estimates — The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires Plan management to make estimates and assumptions that affect the reported amount of net assets available for benefits and changes therein. Actual results could differ from those estimates.
     Risk and Uncertainties — The Plan utilizes various investment instruments including mutual funds, common collective trusts, separately managed accounts and guaranteed investment contracts. Investment securities, in general, are exposed to various risks, such as interest rate, credit and overall market volatility. Due to the level of risk associated with certain investment securities, it is reasonably possible that changes in the values of investment securities will occur in the near term and that such change could materially affect the amounts reported in the financial statements.
     New Accounting Pronouncement — In September 2006, the Financial Accounting Standards Board issued Statement of Financial Accounting Standard No. 157 (SFAS No. 157), Fair Value Measurements. SFAS No. 157 establishes a framework for measuring fair value in generally accepted accounting principles, clarifies the definition of fair value and expands disclosures about fair value measurements. This statement does not require any new fair value measurements. The Plan is required to adopt SFAS No. 157 beginning fiscal year 2009. The Plan is currently assessing the impact this will have on the Plan’s financial statements.
As of April 1, 2006, the Plan adopted Financial Accounting Standards Board Staff Position, FSP AAG INV-1 and Statement of Position 94-4-1, Reporting of Fully Benefit-Responsive Investment Contracts Held by Certain Investment Companies Subject to the AICPA Investment Company Guide and Defined-Contribution Health and Welfare and Pension Plans (the “FSP”), which became effective for fiscal years ending on or after December 15, 2006. The FSP requires investment contracts held by a defined-contribution plan to be reported at fair value. However, contract value is the relevant measurement attribute for that portion of the net assets available for benefits of a defined-contribution plan attributable to fully benefit-responsive investment contracts because contract value is the amount participants would receive if they were to initiate permitted transactions under the terms of the Plan. As required by the FSP, the accompanying Statements of Net Assets Available for Benefits present the fair value of the investment contracts, as well as an adjustment of the fully benefit-responsive investments from fair value to contract value. The Statements of Changes in Net Assets Available for Benefits are prepared on a contract basis.
     Investment Valuation and Income Recognition — Investments in mutual funds are stated at quoted market prices, which represent the net asset value of shares held by the Plan at year-end. Investments in the brokerage link are stated at quoted market prices. Investments in common collective trusts are stated at net asset value. Interests in separately managed funds are valued based on the underlying net assets. Within the Standish Mellon Stable Value Fund (“Stable Value Fund”), traditional Guaranteed Investment

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED MARCH 31, 2008 AND 2007
Contracts (“GICs”) and Variable Synthetic (“VS”) GICs are stated at estimated fair value using discounted cash flows. Fixed Maturity Synthetic (“FMS”) GICs are stated at estimated fair value based on market values of publicly traded bonds that are held as the underlying assets within the FMS GICs. The valuation is provided by FT Interactive Data Corporation. Constant Duration Synthetic (“CDS”) GICs are also held in the Stable Value Fund and are stated at estimated fair value based on market values provided by Barclays Global Investors. Participant loans are valued at the outstanding loan balance. Shares of McKesson Corporation common stock are valued at quoted market prices on March 31, 2008 and 2007. Certain administrative expenses are allocated to the individual funds based upon daily balances invested in each fund and are reflected as a reduction of net appreciation in fair market value of investments and are not separately reflected. Consequently, these management fees and operating expenses are reflected as a reduction of investment return for such investments. All other activity is recorded in the Plan based on the elections of the individual participants in the Plan. Purchases and sales of securities are recorded on a trade-date basis. Realized gains and losses from security transactions are reported on the average cost method. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date.
     Administrative Fees — Administrative fees of the Plan are paid by either McKesson or the Plan, as provided by the Plan document.
     Benefits — Benefits are recorded when paid.
3. INVESTMENTS
     The fair values of individual investments that represent 5% or more of the Plan’s net assets at March 31 were as follows (in thousands):
                 
    2008     2007  
McKesson Corporation Employer (Allocated and Unallocated) * and Employee Company Stock Funds
  $ 438,874     $ 562,156  
SSgA S&P 500 Index Fund
    171,671       164,525  
Dodge & Cox Large Cap Value Fund
    116,358       141,066  
Standish Mellon Stable Value Fund
    125,120       110,128  
 
           
 
*   Non-Participant Directed
     The Stable Value Fund contains investment contracts with insurance companies and financial institutions in order to provide participants with a stable, fixed-rate return on investment and protection of principal from changes in market interest rates.
     Traditional GICs are unsecured, general account obligations of insurance companies. The obligation is backed by the general account assets of the insurance company that writes the investment contract. GIC crediting rates are based upon the rate that is agreed to when the insurance company writes the contract and are generally fixed for the life of the contract.
     VS GICs consist of an asset or collection of assets that are managed by the bank or insurance company and are held in a bankruptcy remote vehicle for the benefit of the fund (or plan). The contract is benefit responsive and provides next day liquidity at contract value. The VS GICs crediting rate is reset every quarter based on the then current market index rates and investment spread. The investment spread is established when the contract is issued and is guaranteed by the issuer for the life of the investment.
     FMS GICs consist of an asset or collection of assets that are owned by the fund (or plan) and a benefit responsive, contract value wrap contract purchased for the portfolio. The wrap contract provides contract value accounting for the asset and assures that contract value, benefit responsive payments will be made for participant directed withdrawals.
     CDS GICs consist of a portfolio of securities owned by the fund (or plan) and a benefit responsive contract value wrap contract purchased for the portfolio. The wrap contract amortizes gains and losses of the underlying securities over the portfolio duration and assures that contract value, benefit responsive payments will be made for participant directed withdrawals.
     The FMS GICs and CDS GICs use wrap contracts in order to manage market risks and to alter the return characteristics of the underlying portfolio of securities owned by the Stable Value Fund to match certain fixed income fund objectives. There are no reserves against these contract values for credit risk of the contract issuer or otherwise. For both FMS and CDS GICs, the fair values

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED MARCH 31, 2008 AND 2007
of “wraps” provided by issuers are valued by Standish Mellon Asset Management using the combination of a cost and income approach. The methodology uses the cost approach to determine a replacement value of each contract based on an internal pricing matrix developed by the portfolio management and trading team of the Standish Mellon Asset Management Stable Value Group. The methodology then uses the income approach to determine the present value of the fee payments related to the contract, using both the current contractual fees as well as the replacement fees generated by the matrix pricing. The fee payments over the duration of the contract are discounted by using comparable duration swap rates. The carrying value of the contract is the present value of the wrapper cost applying replacement fees less the present value of the wrapper cost applying current contractual fees.
     The initial crediting rate for both the FMS and CDS GICs are established based on the market interest rates at the time the initial asset is purchased and is guaranteed to have an interest crediting rate not less than zero percent. The FMS GICs crediting rate is set at the start of the contract and typically resets on a quarterly basis. The CDS GICs crediting rate resets every quarter based on the contract value, the market value of the underlying assets and the average duration of the underlying assets. The crediting rate for CDS GICs aims at converging the contract value of the contract and market value of the contract and therefore will be affected by interest rate and market changes.
     It is probable that withdrawals and transfers resulting from the following events will limit the ability of the fund to transact at book or contract value. Instead, fair value will likely be used in determining the payouts to the participants.
    Employer-initiated events — events within the control of the plan or the plan sponsor which would have a material and adverse impact on the Fund
    Employer communications designed to induce participants to transfer from the fund
 
    Competing fund transfer or violation of equity wash or equivalent rules in place
 
    Changes of qualification status of employer or plan
     In general, issuers may terminate the GIC and settle at other than contract value if the qualification status of employer or plan changes, breach of material obligations under the contract and misrepresentation by the contract holder, or failure of the underlying portfolio to conform to the pre-established investment guidelines.
     The average yield of the entire Stable Value Fund based on actual earnings was 4.46% and 4.73% at March 31, 2008 and 2007. The average yield of the GICs based on the interest rate credited to participants was 4.38% and 4.58% at March 31, 2008 and 2007. To calculate the required yield, the amount credited to participants for the last day of the period is annualized and divided by the fair value of the investment portfolio on that date.

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED MARCH 31, 2008 AND 2007
     The GICs are presented in the Statements of Net Assets Available for Benefits at fair value in the investments total and adjusted to contract value in determining the net assets available for benefits.
     The portfolio holdings in the Stable Value Fund as of March 31, 2008 and 2007 are shown below (in thousands):
                             
    As of March 31, 2008        
    Rating   Investment     Wrap     Adjustment to  
    S&P/   at Fair     Contract at     Contract  
    Moody’s   Value     Fair Value     Value  
Cash /Cash Equivalent:
                           
Fidelity Management Trust Company (STIF) 100-31-TPMZ
  Cash/Cash   $ 6,466     $     $  
Natixis (formerly IXIS) Financial Products, Inc 975-25 (5 year, CMS-19)
  AAA/Aaa     2,064             (53 )
Guaranteed Investment Contract:
                           
Hartford Life Insurance Company GA 10648B
  AA-/Aa3     1,559              
Fixed Maturity Investment:
                           
Bank of America, N.A. 03-051
  AAA/Aaa     13,444       4       (49 )
State Street Bank 107075
  AAA/Aaa     11,546       3       25  
Rabobank Nederland MCK080301
  AAA/Aaa     12,414       1       (44 )
Constant Duration Synthetic:
                           
State Street Bank 107074
  AA+/Aa1     18,734       10       87  
UBS AG 3199
  AA+/Aa1     12,830       2       106  
AIG Financial Products 543454
  AA+/Aa1     23,827       4       197  
Natixis (formerly IXIS) Financial Products, Inc WR1075-01
  AA+/Aa1     18,734       16       79  
Pooled Funds:
                           
Northern Trust Pooled
  AA+/Aa1     2,881             (47 )
Mellon Stable Value Fund
  AA+/Aa1     581             2  
 
                     
Total
      $ 125,080     $ 40     $ 303  
 
                     
                                 
            As of March 31, 2007  
            Investment     Wrap     Adjustment to  
            at Fair     Contract at     Contract  
            Value     Fair Value     Value  
Cash/Cash Equivalent:
                               
Fidelity Management Trust Company (STIF) 100-31-TPMZ
  Cash/Cash   $ 4,030     $     $  
IXIS Financial Products, Inc 975-25 (5 year, CMS-19)
  AAA/Aaa     2,017              
Guaranteed Investment Contracts:
                               
Hartford Life Insurance Company GA 10648A
  AA-/Aa3     1,376              
Hartford Life Insurance Company GA 10648B
  AA-/Aa3     3,452             17  
New York Life GA 31486
  AA+/Aaa     1,517              
Security Life of Denver SA 0484
  AA/Aa3     1,609              
Fixed Maturity Investment:
                               
Bank of America, N.A. 03-051
  AAA/Aaa     11,781       4       231  
Monumental Life Insurance Co(Aegon)MDA00441TR
  AAA/Aaa     8,026       1       114  
 
Rabobank Nederland MCK080301
  AAA/Aaa     11,813       1       255  
Constant Duration Synthetic:
                               
AIG Financial Products 543454
  AA+/Aa1     29,586       5       236  
IXIS Financial Products, Inc WR1075-01
  AA+/Aa1     34,330       27       56  
Pooled Funds:
                               
Mellon Stable Value Fund
  AA+/Aa1     553             5  
 
                         
Total
          $ 110,090     $ 38     $ 914  
 
                         

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
NOTES TO FINANCIAL STATEMENTS (CONCLUDED)
YEARS ENDED MARCH 31, 2008 AND 2007
     During fiscal 2008 and 2007, the Plan’s investments (including gains and losses on investments bought and sold, as well as held during the year) (depreciated) appreciated in value as follows (in thousands):
                 
    2008     2007  
Common collective trusts
  $ (10,642 )   $ 23,926  
Mutual funds
    (75,286 )     2,356  
Separately Managed Accounts
    (25,620 )     16,055  
McKesson Corporation Common Stock:
               
Employer Company Stock Fund (Allocated and Unallocated)*
    (44,943 )     54,022  
Employee Company Stock Fund
    (5,425 )     6,076  
 
           
Total
  $ (161,916 )   $ 102,435  
 
           
 
*   Non-Participant Directed
4. LINE OF CREDIT
     In fiscal 1998, the Plan obtained a $35 million line of credit with ABN AMRO Bank N.V. to refinance a portion of the principal payable under the ESOP loans and to more efficiently manage the number of shares released to fund the employee benefits. The line of credit bears interest at London Interbank Offered Rate (“LIBOR”) multiplied by the applicable LIBOR adjustment. The line of credit matures on June 1, 2009. On March 31, 2008 and 2007, interest rates were 2.45% and 4.95% on the outstanding balance totaling $700,000 and $3,000,000. At March 31, 2008 and 2007, the line of credit was collateralized by 16,023 and 101,416 unallocated shares of McKesson Corporation common stock. The line of credit was prepaid in full on April 9, 2008 in order to release shares for fiscal 2008 employee benefits. All remaining shares were released from collateral on April 9, 2008. As of March 31, 2008, 16,023 shares were available for fiscal 2009 benefits.
5. ESOP PROMISSORY NOTES PAYABLE
     In June 1989, the Company amended the Plan to add an additional leveraged ESOP. In June 1989, the Plan purchased from the Company 2,849,003 shares of McKesson Corporation Series B ESOP Convertible Preferred Stock ($43.875 stated value) for $125,000,000, financed by a twenty-year term loan from the Company. During fiscal 1995, in connection with the PCS Transaction (a fiscal 1995 transaction involving a reorganization and a sale of a business unit of the Company), all shares of Series B ESOP Convertible Preferred Stock held by the Plan were converted into 5,440,914 shares of Company common stock. In fiscal 1996, in connection with the PCS Transaction, the ESOP purchased 6,259,080 additional shares of Company common stock.
     The ESOP promissory note supporting the June 1989 stock purchase is payable to the Company in annual installments plus interest at 8.6% over a twenty-year term ending in fiscal 2010. On March 31, 2008, the outstanding balance of the note was $2,503,000 ($11,353,000 at March 31, 2007). This note is collateralized by 131,884 unallocated shares of McKesson Corporation common stock (922,124 at March 31, 2007). In June 2007 and July 2006, additional principal payments of $6,000,000 and $5,000,000 were made to enable the release of additional shares for employer contributions, and each of the scheduled subsequent loan repayment installments was reduced.
     Future minimum principal payments required on this note are as follows (in thousands):
         
Fiscal year   Amount  
2009
  $ 1,633  
2010
    870  
 
     
Total
  $ 2,503  
 
     
6. FEDERAL INCOME TAX STATUS
     The Internal Revenue Service has determined and informed the Company by letter dated January 21, 2004, that the Plan is qualified and the trust established under the Plan is tax-exempt, in accordance with the applicable sections of the Internal Revenue Code. In accordance with Revenue Procedure 2006-66, the Plan’s sponsor has requested an updated determination letter on the entire Plan as amended, including the requirements of the Economic Growth and Tax Relief Reconciliation Act of 2001, Pub. L. 107-16, and all other items identified on the 2005 Cumulative List of Changes in Plan Qualification Requirements. The Company and the Plan administrator believe that the Plan is currently designed and operated in compliance with the applicable requirements of the Internal

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
NOTES TO FINANCIAL STATEMENTS (CONCLUDED)
YEARS ENDED MARCH 31, 2008 AND 2007
Revenue Code and the Plan and related trust continue to be tax-exempt. Therefore no provision for income taxes has been included in the Plan’s financial statements.
7. PLAN TERMINATION
     The Company’s Board of Directors reserves the right to terminate the Plan. If termination should occur, all participant accounts will immediately vest and each account would receive a distribution equal to the vested account balance. In addition, the unallocated common stock would be liquidated to repay the ESOP promissory notes payable. If the stock liquidation is insufficient to satisfy the notes payable, the Company is obligated to fund the difference.
8. LITIGATION
     ERISA Litigation
     The Plan’s report on Form 11-K for the year ended March 31, 2007, included a description of an action in the United States District Court for the Northern District of California captioned In re McKesson HBOC, Inc. ERISA Litigation (N.D. Cal. C-00-20030 RMW) (the “ERISA Action”), a lawsuit initiated following announcements by McKesson in April, May and July of 1999 that McKesson had determined that certain software sales transactions in its Information Solutions segment, formerly HBO & Company (“HBOC”), were improperly recorded as revenue and reversed. The ERISA Action was brought on behalf of two putative classes: an “HBOC Sub-Class,” and a “McKesson Sub-Class” The HBOC Sub-Class included participants in the former HBO & Company Profit-Sharing and Savings Plan (the “HBOC Plan”) and their beneficiaries in the period from March 31, 1996 to April 1, 1999 (the date of the merger of the HBOC Plan into the Plan), for whose benefit the HBOC Plan held and acquired HBOC stock (and, after January 12, 1999, McKesson stock). The McKesson Sub-Class included participants in the Plan (excluding employees of HBOC who became participants in the Plan by virtue of the merger of the HBOC Plan into the Plan on or about April 1, 1999) whose accounts were invested in McKesson stock at any time, who maintained an account balance under the Plan as of April 27, 1999, which included McKesson stock, and who had not received a distribution from the Plan as of April 27, 1999. Plaintiffs in the ERISA Action alleged, among other things, that McKesson, HBOC, and the alleged fiduciaries of the Plan and of the HBOC Plan breached their fiduciary duties.
     On May 6, 2005, McKesson reached an agreement to settle all claims for the benefit of the HBOC Sub-Class for approximately $18.2 million in exchange for releases in favor of all defendants, including releases of claims the HBOC Sub-Class might have under ERISA, the federal securities laws, or which relate to the holding, voting or acquisition of McKesson or HBOC securities. The court granted final approval to that settlement on September 9, 2005, holding that it was fair, adequate and reasonable to the HBOC Sub-Class. In November 2005, the Plan received the ERISA Action settlement for the HBOC Sub-Class, less attorneys’ fees, totaling $13,654,000. The ERISA litigation proceeds for the HBOC Sub-Class were allocated to the Plan participants on November 17, 2005. In October 2006, the Plan received $15,000 in residual settlement proceeds which have been allocated to the Plan participants.
     In March 2006, the Company reached an agreement to settle all claims for the benefit of the McKesson Sub-Class for $18.5 million, plus certain accrued interest, minus certain costs and expenses such as plaintiffs’ attorneys’ fees. The court granted final approval to that settlement on September 1, 2006, holding that it was fair, adequate and reasonable to the McKesson Sub-Class. This settlement provided for the release of all remaining claims against all defendants in the ERISA Action. In October 2006, the Plan received the ERISA Action settlement for the McKesson Sub-Class, less attorneys’ fees, totaling $13,966,000. The ERISA litigation proceeds for the McKesson Sub-Class were allocated to the Plan participants on April 24, 2007.
     Accounting Litigation
     Also following the announcements by McKesson in April, May and July of 1999 described above, as of March 31, 2007, numerous lawsuits had been filed against McKesson, HBOC, certain of McKesson’s or HBOC’s current or former officers or directors, and other defendants, including Bear Stearns & Co. Inc. (“Bear Stearns”) and Arthur Andersen LLP (“Andersen”), which lawsuits were consolidated into a single proceeding in the Northern District of California captioned, In re McKesson HBOC, Inc. Securities Litigation (No. C-99-20743 RMW) (the “Consolidated Action”). On January 12, 2005, McKesson announced that it reached an agreement to settle the claims in the Consolidated Action. On February 24, 2006, the district court gave final approval to the McKesson settlement of the Consolidated Action, and as a result, McKesson paid approximately $960 million into an escrow account established by the lead plaintiff in connection with the settlement. On April 13, 2007, the district court gave final approval to the settlement of related claims against Andersen brought pursuant to the Consolidated Action. In that matter, the district court found the settlement of the claims against Andersen for the sum of $72.5 million in cash, plus accrued interest, was fair, reasonable, and

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
NOTES TO FINANCIAL STATEMENTS (CONCLUDED)
YEARS ENDED MARCH 31, 2008 AND 2007
adequate to the settlement class. On January 18, 2008, the trial judge gave his final approval to a settlement of the class action by the last remaining defendant, Bear Stearns. In consideration of obligations of Bear Stearns, McKesson paid $10 million to fund the Bear Stearns class settlement. The Bear Stearns settlement is final. Although the court has permitted a partial distribution of funds from the three settlements to certain class members, settlement funds from all of the three settlements described above remain available for distribution.
     The Plan is a member of the class in the Consolidated Action, and as such, has filed claims in connection with the McKesson, Andersen and Bear Stearns settlements. Due to the continuing nature of these proceedings, it is unknown what amounts will be distributed to the Plan in relation to settlement of the Consolidated Action.
9. RELATED-PARTY TRANSACTIONS
     At March 31, 2008 and 2007, the Plan held approximately 8,373,000 and 9,592,000 common shares of McKesson Corporation, the Plan’s sponsor. The shares are held within the McKesson Corporation Employer and Employee Stock Funds and the Leveraged ESOP. At March 31, 2008 and 2007, the allocated Employer Stock Funds held approximately 7,322,000 and 7,639,000 common shares and the Leveraged ESOP held 148,000 and 1,024,000 common shares, as collateral for the ESOP loans. At March 31, 2008 and 2007, the Employee Stock Fund held approximately 903,000 and 929,000 shares.
     McKesson Corporation declared dividends of $0.24 per share for both fiscal 2008 and 2007. During the years ended March 31, 2008 and 2007, the Employer Stock Funds received dividend income from McKesson Corporation common shares of approximately $1,988,000 and $2,344,000. During each of the years ended March 31, 2008 and 2007, the Employee Company Stock Fund received dividend income from McKesson Corporation common shares of approximately $216,000 and $238,000.
     Certain investment options are managed by Fidelity, which also serves as the Plan’s record-keeper and trustee. Therefore, these transactions qualify as party-in-interest transactions. Fees for investment management services are allocated to the participants with balances in those funds.
10. RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500
     The following is a reconciliation of the Statements of Net Assets Available for Benefits and the Statements of Changes in Net Assets Available for Benefits per the financial statements at March 31, 2008 and 2007 to the Form 5500:
Statements of net assets available for benefits:
                 
    2008     2007  
Net assets available for benefit per the financial statements
  $ 1,816,560     $ 1,784,929  
Adjustment from contract value to fair value for fully benefit-responsive investment contracts
    (303 )     (914 )
 
           
Net Assets available for benefits per the Form 5500
  $ 1,816,257     $ 1,784,015  
 
           
Statements of changes in net assets available for benefits:
                 
    2008     2007  
Increase in net assets per the financial statements
  $ 31,631     $ 154,072  
Change in adjustment from contract value to fair value for fully benefit-responsive investment contracts
    611       (914 )
 
           
Net increase in net assets available for benefits per the Form 5500
  $ 32,242     $ 153,158  
 
           
11. SUBSEQUENT EVENTS
     The line of credit was prepaid in full on April 9, 2008 in order to release shares for fiscal 2008 employee benefits. All remaining shares related to the line of credit were released from collateral on April 9, 2008. As of March 31, 2008, 16,023 shares were available for fiscal 2009 benefits.
     Effective fiscal 2009, McKesson Corporation quarterly dividend rate will increase from $0.06 per share to $0.12 per share.

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
FORM 5500, SCHEDULE H, PART IV, LINE 4i — SCHEDULE OF ASSETS (HELD AT END OF YEAR)
MARCH 31, 2008
                         
            Shares/Units/Interest        
Investment/Fund Name   Cost Basis     Rate     Fair Value  
* MCKESSON ER STK FUND (allocated)
  $ 251,438,219       7,321,846     $ 383,445,110  
* MCKESSON ER STK FUND (unallocated)
    2,786,568       147,907       7,745,855  
* MCKESSON EE STK FUND
    36,252,000       902,872       47,683,283  
BROKERAGELINK
    17,327,838       18,614,441       16,497,321  
SSGA BOND INDEX
    15,419,700       1,070,278       19,992,795  
SSGA BALANCED
    66,153,694       3,623,176       72,281,219  
WELLNGTON MGMT SMCAP
    36,190,769       2,579,660       42,074,261  
SSGA S&P 500 INDEX
    131,329,296       8,293,297       171,671,241  
DODGE & COX LARGE CAP VALUE FUND
    84,850,247       6,396,795       116,357,701  
UNDERLYING SECURITIES OF STANDISH MELLON STABLE VALUE FUND:
                       
Fidelity Management Trust Company (STIF) 100-31-TPMZ
    6,466,352     3.42% interest rate       6,466,352  
Natixis Financial Products, Inc. 975-25 (5 Year CMS-19)
    2,011,349     3.29% interest rate       2,063,823  
Mellon Stable Value Fund
    583,578     4.36% interest rate       581,474  
Northern Trust Pooled
    2,834,014     4.44% interest rate       2,881,059  
Bank of America, N.A. 03-051
    13,398,139     4.10% interest rate       13,447,446  
Hartford Life Insurance Company GA 10648B
    1,559,443     3.76% interest rate       1,559,444  
Natixis (formerly IXIS) Financial Products, Inc. WR 1075-01
    18,828,989     5.01% interest rate       18,750,182  
State Street Bank SSB1 107074
    18,830,543     5.03% interest rate       18,743,673  
State Street Bank SSB2 107075
    11,574,282     4.25% interest rate       11,549,632  
AIG Financial Products 543454
    24,027,919     4.92% interest rate       23,830,674  
UBS AG 3199
    12,938,202     4.93% interest rate       12,831,902  
Rabobank Nederland MCK080301
    12,370,421     4.23% interest rate       12,414,625  
* FID DIVERSIFIED INTL
    69,449,461       2,027,048       73,095,361  
RAINIER LG CAP GROWTH
    11,162,639       1,078,677       11,401,618  
PIMCO TOT RETURN ADM
    17,238,379       1,641,885       17,912,963  
TMPL FOREIGN SM CO A
    605,566       29,850       534,323  
ABF BALANCED PA
    1,075,301       79,342       996,541  
ABF LARGE CAP VAL PA
    4,087,826       192,648       3,868,368  
ABF INTL EQUITY PA
    463,148       21,106       430,985  
MUTUAL DISCOVERY A
    4,041,191       136,363       4,047,258  
BARON GROWTH
    12,912,445       283,397       12,874,713  
BARON ASSET FUND
    1,254,996       21,116       1,188,213  
UBS GLOBAL EQ Y
    3,818       254       3,614  
MSI US LG CAP GRTH  P
    217,490       11,398       242,442  
CALV NEWVIS SM CP A
    47,427       2,767       39,508  
CALVERT SIF BALNCD A
    145,727       4,932       135,691  
CALVERT SIF BOND A
    420,164       26,393       416,225  
CALVERT SIF:EQUITY A
    14,199       366       12,944  
CALVERT CAP ACC A
    16,633       731       18,495  
FMA SMALL COMPANY IS
    762,374       37,596       635,003  
LOOMIS SM CAP VAL R
    776,465       27,976       619,114  
ARIEL FUND
    4,682,886       97,258       4,006,039  
ARIEL APPRECIATION
    3,165,683       72,011       2,814,920  
LB CORE BOND NB INV
    273,400       27,434       263,639  
FKLN SMMIDCAP GRTH A
    4,055,353       101,893       3,071,067  
TEMPLETON FOREIGN A
    8,144,406       695,715       7,638,950  
MUTUAL SHARES CL A
    4,568,311       182,039       4,154,123  
MANAGERS SPECIAL EQ
    108,063       1,298       71,547  
MSI GLOBAL VAL EQ B
    75,886       4,261       66,564  
MSIFT CP FX INC ADV
    403,713       35,123       378,627  
MSIFT HIGH YIELD ADV
    23,885       2,293       22,491  
MSIFT MIDCAP GTH ADV
    987,999       37,575       1,071,250  

16


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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
FORM 5500, SCHEDULE H, PART IV, LINE 4i — SCHEDULE OF ASSETS (HELD AT END OF YEAR)
MARCH 31, 2008
                         
            Shares/Units/Interest        
Investment/Fund Name   Cost Basis     Rate     Fair Value  
MSIFT VALUE ADVISER
    356,063       21,520       310,957  
MSI SM CO GROWTH B
    190,070       15,985       174,554  
MSI EMERGING MKTS B
    2,826,896       91,920       2,639,930  
NB FOCUS TRUST
    184,391       7,872       145,157  
NB GENESIS — TR CL
    14,794,132       304,695       14,402,911  
NB PARTNERS TRUST
    1,365,026       57,852       1,306,879  
NB SOCIALLY RESP TR
    402,329       24,553       412,497  
OAKMARK Select I
    2,513,275       75,277       1,770,524  
OAKMARK FUND I
    963,421       22,559       843,720  
ALLNZ CCM CAP AP ADM
    342,098       18,543       335,816  
ALLNZ CCM MID CP ADM
    538,458       21,828       524,315  
PIM GLBBND AD UNHDGD
    1,186,538       113,062       1,242,554  
PIMCO HIGH YIELD ADM
    1,375,152       142,549       1,311,447  
PIMCO LOW DUR ADM
    644,542       63,913       648,078  
PIMCO LT US GOVT ADM
    1,260,950       115,811       1,308,663  
TEMPLETON DEV MKTS A
    2,294,685       92,194       2,383,210  
TEMPLETON GROWTH A
    3,387,777       144,327       3,064,051  
TMPL GLOBAL BOND A
    6,189,564       549,031       6,621,308  
TEMPLETON WORLD A
    2,337,079       129,062       2,135,980  
AIM CONSTELLATION A
    91,210       3200       79,993  
CS LG CAP GRTH COM
    45,563       2,802       48,088  
CS MID CAP GRTH COM
    102,606       3,820       128,442  
RS EMERGING GROWTH
    184,728       5,144       169,046  
ARTISAN INTL
    3,061,849       106,795       2,829,005  
MSI INTL EQUITY B
    141,467       6,857       119,936  
NB GUARDIAN TRUST
    159,414       10,988       140,538  
DWS INTERNATIONAL S
    113,915       1,856       117,798  
DOMINI SOCIAL EQUITY
    190,749       6,548       190,154  
RAINIER SM/MID CAP
    2,548,845       64,585       2,190,086  
DWS GLOBAL OPPS S
    466,785       10,836       417,608  
AM CENT ULTRA INV
    103,179       4,240       91,622  
AIM GBL SM&MDCP GR A
    528,203       21,229       445,388  
MANAGERS BOND FUND
    2,329,997       93,268       2,327,035  
MANAGERS CAP APPREC
    8,049       236       6,960  
MANAGERS VALUE
    53,218       2,012       38,816  
RS SMALLER CO GROWTH
    133,542       6,197       102,615  
TCW SELECT EQUITY N
    252,756       13,537       222,008  
CS LARGE CAP VALUE A
    351,100       19,171       257,844  
AIM BASIC VALUE A
    177,698       4,925       135,774  
LM VALUE TRUST FI CL
    535,543       7,457       411,902  
NB FSCIANO INVT
    117,441       2,854       101,086  
ARTISAN MID CAP INV
    1,537,093       46,696       1,257,067  
OAKMARK EQ & INC I
    4,687,952       176,644       4,794,130  
ROYCE LOW PR STK SER
    1,798,973       108,213       1,514,980  
WFA SMALL CAP VAL Z
    538,985       16,927       466,682  
VK GROWTH & INCOME A
    1,172,219       55,065       1,051,740  
LD ABBETT AFFILTD A
    311,401       20,889       263,196  
DWS/D HIGH RTN EQ A
    932,211       19,866       805,354  
VAN KAMPEN EQ INC A
    1,086,142       120,233       979,901  
AIM MIDCAP CORE EQ A
    137,570       5,089       114,106  
WEST ASSET CORE FI
    161,079       14,318       150,914  
BARON SMALL CAP
    520,363       21,930       451,313  
WFA C&B MIDCAP VAL D
    526,549       25,239       356,625  
PIMCO REAL RTN BD AD
    1,732,639       155,852       1,784,503  

17


Table of Contents

McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
FORM 5500, SCHEDULE H, PART IV, LINE 4i — SCHEDULE OF ASSETS (HELD AT END OF YEAR)
MARCH 31, 2008
                         
            Shares/Units/Interest        
Investment/Fund Name   Cost Basis     Rate     Fair Value  
LMP AGGR GROWTH A
    160,010       1,413       146,700  
LB HIGH INC BOND INV
    25,870       2,855       23,900  
ALLNZ NFJ SMCPVAL AD
    2,283,887       72,120       2,056,149  
WFA SM CO VALUE ADM
    157,564       10,322       113,848  
RS PARTNERS A
    417,211       12,076       339,927  
ALL/BERN SMMDCPVAL A
    120,108       7,183       104,733  
COL/ACORN SELECT Z
    2,519,943       92,175       2,254,607  
COL CONS HIGH YLD Z
    36,654       4,403       34,165  
CRM MID CAP VAL INV
    1,767,535       60,719       1,618,172  
ABF SM CAP VAL PA
    759,290       37,329       611,073  
AM CEN LG CO VAL INV
    49,424       6,676       43,258  
NB INTL FUND TRUST
    443,746       16,993       360,763  
LMP LARGE CAP GRTH A
    10,072       428       9,713  
ROYCE TOT RETURN SER
    479,979       35,085       423,123  
AM CENT VISTA INV
    610,786       31,556       569,585  
ROYCE OPPORTUNITY S
    522,185       40,543       396,913  
LD ABBETT SMCP BLD A
    72,987       4,421       66,006  
WFA MIDCP DSCPLD INV
    305,903       13,758       255,341  
RS VALUE A
    268,008       9,529       223,359  
ROYCE VALUE PLUS SER
    3,539,900       250,995       3,129,913  
PNX SMALL-MID CAP I
    34,876       1,703       25,585  
PNX MID CAP VALUE A
    785,388       30,507       679,401  
NB REGENCY TRUST
    36,314       2,458       32,672  
LOOMIS GRTH A
    40,355       6,332       38,877  
TOUCHSTN SC SEL GR Z
    9,749       1,233       9,630  
WA CORE PLUS BOND FI
    168,087       16,345       161,647  
HARTFORD GROWTH Y
    244,066       12,993       217,375  
HTFD INTL CAP APPR Y
    716,889       46,628       636,477  
HTFD SM CAP GROWTH Y
    1,939       65       1,619  
* FID FIDELITY
    2,114,747       63,563       2,246,960  
* FID PURITAN
    3,101,448       164,428       2,893,937  
* FID TREND
    264,229       4,666       281,214  
* FID SEL COMPUTERS
    37,221       842       33,374  
* FID SEL ELECTRONICS
    28,998       644       24,096  
* FID SEL CONS STAPLES
    516,149       8,243       535,034  
* FID VALUE STRATEGIES
    532,758       15,810       402,525  
* FID GINNIE MAE
    2,436,034       222,935       2,461,203  
* FIDELITY MAGELLAN
    67,903,445       671,178       55,211,091  
* FID CONTRAFUND
    12,974,507       193,391       12,427,325  
* FID EQUITY INCOME
    5,588,763       102,103       4,996,917  
* FID GROWTH COMPANY
    10,496,172       149,289       10,942,896  
* FIDELITY INVST GR BD
    1,177,935       160,157       1,132,310  
* FID GROWTH & INCOME
    51,857,677       1,475,373       36,072,868  
* FID SEL SOFTWARE
    333,951       4,910       326,860  
* FID INTERMED BOND
    7,482,591       727,872       7,358,784  
* FID SEL AIR TRANSPRT
    70,385       1,497       51,714  
* FID CAPITAL & INCOME
    6,087,372       708,652       5,789,685  
* FID VALUE
    10,562,938       142,565       9,711,549  
* FID MORTGAGE SEC
    183,255       16,677       170,939  
* FID SEL GOLD
    3,923,489       96,613       4,041,332  
* FID SEL BIOTECH
    329,992       5,230       320,376  
* FID SEL ENERGY SVCS
    3,090,183       37,296       3,474,510  
* FID SEL INSURANCE
    117,372       1,752       91,392  
* FID SEL RETAILING
    63,074       1,330       48,780  

18


Table of Contents

McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
FORM 5500, SCHEDULE H, PART IV, LINE 4i — SCHEDULE OF ASSETS (HELD AT END OF YEAR)
MARCH 31, 2008
                         
            Shares/Units/Interest        
Investment/Fund Name   Cost Basis     Rate     Fair Value  
* FIDELITY US GOVT RES
    4,834,460       4,834,460       4,834,460  
* FIDELITY GOVT INCOME
    1,747,844       170,248       1,813,141  
* FIDELITY CASH RESRVE
    17,152,841       17,152,841       17,152,841  
* FID SEL ENERGY
    6,138,652       113,579       7,103,252  
* FID SEL LEISURE
    140,476       1,767       120,924  
* FID SEL HEALTHCARE
    1,238,562       9,615       1,023,222  
* FID SEL TECHNOLOGY
    438,548       6,006       395,223  
* FID SEL UTILITIES GR
    746,243       12,513       717,379  
* FID SEL FINANCIAL
    272,521       2,707       223,341  
* FID SEL DEFENSE
    2,148,006       25,632       1,967,736  
* FID SEL BROKERAGE
    697,651       9,914       575,995  
* FID SEL CHEMICAL
    576,377       7,567       603,200  
* FID INDEPENDENCE
    1,557,756       61,802       1,554,325  
* FID OTC PORTFOLIO
    617,993       14,482       624,036  
* FID OVERSEAS
    1,351,617       31,072       1,329,569  
* FID SEL TELECOMM
    177,986       3,616       150,197  
* FID SEL HOME FINANCE
    90,996       2,623       65,648  
* FID LEVERAGED CO STK
    9,206,600       306,405       9,032,819  
* FID EUROPE
    1,737,736       46,086       1,757,271  
* FID PACIFIC BASIN
    1,288,642       46,360       1,169,207  
* FID REAL ESTATE INVS
    7,445,808       250,493       6,803,383  
* FID BALANCED
    15,728,468       847,863       15,414,157  
* FID INTL DISCOVERY
    7,308,129       223,856       8,537,864  
* FID CAP APPRECIATION
    5,488,933       205,261       4,811,318  
* FID CONVERTIBLE SEC
    1,976,390       79,606       2,088,056  
* FID CANADA
    10,501,057       215,694       12,253,602  
* FIDELITY UTILITIES
    872,764       48,451       881,813  
* FID BLUE CHIP GROWTH
    29,019,757       659,365       25,978,994  
* FID ASSET MANAGER
    8,634,668       535,695       7,778,293  
* FID DISCIPLINED EQTY
    1,174,989       40,259       1,040,296  
* FIDELITY LOW PR STK
    15,175,296       399,476       15,176,108  
* FID WORLDWIDE
    736,325       37,539       714,745  
* FID EQUITY INCOME II
    14,966,291       651,379       13,411,883  
* FID STOCK SELECTOR
    474,087       17,331       457,366  
* FID ASSET MGR GRTH
    801,196       52,197       810,625  
* FIDELITY EMERG MRKTS
    8,703,634       341,875       10,030,621  
* FIDELITY AGGR GROWTH
    2,208,497       122,074       2,242,498  
* FID ASSET MGR INCOME
    1,295,545       102,073       1,234,062  
* FID DIVIDEND GROWTH
    5,738,831       202,007       5,349,155  
* FID NEW MARKETS INC
    5,199,608       362,759       5,238,238  
* FID EXP & MULTINATL
    4,026,437       184,652       4,073,428  
* FID FOCUSED STOCK
    249,425       21,827       260,832  
* FID GLOBAL BALANCED
    701,842       32,035       693,882  
* FID AGGRESSIVE INTL
    773,426       48,055       647,300  
* FID SM CAP INDEPEND
    1,182,575       57,149       962,395  
* FID MID CAP STOCK
    8,527,009       325,021       8,252,278  
* FID LARGE CAP STOCK
    1,235,624       74,900       1,257,574  
* FID DISCOVERY
    1,650,717       119,243       1,677,746  
* FID SMALL CAP STOCK
    3,660,907       206,067       3,222,882  
* FID EUROPE CAP APP
    1,851,951       70,631       1,695,146  
* FIDELITY NORDIC
    3,121,953       75,335       3,170,110  
* FID ASSET MGR AGGR
    791,578       62,867       802,807  
* FID LATIN AMERICA
    11,462,791       256,384       15,252,298  
* FID JAPAN
    669,794       45,256       552,714  

19


Table of Contents

McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
FORM 5500, SCHEDULE H, PART IV, LINE 4i — SCHEDULE OF ASSETS (HELD AT END OF YEAR)
MARCH 31, 2008
                         
            Shares/Units/Interest        
Investment/Fund Name   Cost Basis     Rate     Fair Value  
* FID SOUTHEAST ASIA
    9,899,124       278,401       9,011,841  
* FID CHINA REGION
    4,971,601       179,075       4,840,387  
* FID SEL IT SERVICES
    36,946       2,206       32,474  
* FID SEL MED EQ & SYS
    284,433       11,720       281,153  
* FID FOUR IN ONE IDX
    670,414       24,947       702,514  
* FID JAPAN SMALLER CO
    720,956       57,348       585,521  
* FID MEGA CAP STOCK
    868,832       82,702       855,969  
* FID STRATEGIC INCOME
    3,700,403       351,791       3,651,595  
* FID FREEDOM INCOME
    474,728       42,547       476,105  
* FID FREEDOM 2000
    273,740       22,492       271,706  
* FID FREEDOM 2010
    12,588,483       852,796       11,998,833  
* FID FREEDOM 2020
    13,876,977       925,542       13,568,441  
* FID FREEDOM 2030
    7,282,478       467,364       7,019,806  
* FID SM CAP RTMT
    881,435       59,447       834,635  
SPTN TOTAL MKT INDEX
    5,506,842       151,267       5,598,398  
SPTN EXTND MKT INDEX
    2,062,294       56,492       1,954,630  
SPARTAN INTL INDEX
    5,400,669       125,933       5,444,064  
* FID SHORT TERM BOND
    1,339,842       151,767       1,277,878  
* FID INTM GOVT INCOME
    446,078       43,826       463,238  
* FID HIGH INCOME
    1,430,689       162,894       1,350,392  
* FID FIFTY
    3,257,945       147,455       2,758,889  
* FID SEL AUTOMOTIVE
    22,003       629       21,372  
* FID SEL MULTIMEDIA
    13,544       319       10,840  
* FID SEL MEDICAL DEL
    1,237,635       24,603       958,766  
* FID SEL PAPER&FOREST
    16,718       589       16,253  
* FID SEL BANKING
    291,260       10,319       226,605  
* FID SEL INDUST MATER
    530,878       9,488       532,915  
* FID SEL INDUST EQUIP
    33,524       1,004       32,935  
* FID SEL CONSTR/HOUSE
    209,065       4,911       165,405  
* FID SEL TRANSPORT
    200,883       4,047       179,895  
* FID SEL NATURAL GAS
    2,568,154       61,848       3,035,490  
* FID SEL NATURAL RES
    4,727,859       143,767       5,373,993  
* FID SEL CYCLICAL IND
    149,282       6,937       143,726  
* FID SEL ENVIRONMENT
    45,999       2,665       46,193  
* FID SEL CONSUMER IND
    6,677       275       5,314  
* FID SEL DEVELOP COMM
    20,002       932       17,931  
* FID SEL PHARMACEUTCL
    294,974       26,536       263,498  
* FIDELITY RETIRE MMKT
    24,760,672       24,760,672       24,760,672  
* FIDELITY RET GOVT MM
    5,692,212       5,692,212       5,692,212  
SPARTAN US EQ INDEX
    7,550,091       159,583       7,498,809  
* FIDELITY US BD INDEX
    3,755,783       343,909       3,769,237  
* FID INST SH INT GOVT
    445,221       46,378       460,536  
* FID LARGE CAP VALUE
    1,132,718       78,289       1,004,451  
* FID FREEDOM 2040
    3,059,531       329,217       2,893,816  
* FID MID CAP VALUE
    1,412,416       85,831       1,237,684  
* FID LARGE CAP GROWTH
    886,763       79,117       725,504  
* FID MID CAP GROWTH
    678,398       50,197       588,307  
* FID INFLAT PROT BOND
    947,061       84,716       977,622  
* FID ULTRASHORT BOND
    118,913       12,728       105,767  
* FID FLOAT RT HI INC
    564,570       57,937       530,704  
* FID INTL SMALL CAP
    3,447,537       131,244       2,792,862  
* FID TOTAL BOND
    1,027,106       99,053       1,020,244  
* FID VALUE DISCOVERY
    2,408,381       136,529       2,176,268  
* FID REAL ESTATE INC
    175,676       15,528       149,691  

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McKESSON CORPORATION PROFIT-SHARING INVESTMENT PLAN
FORM 5500, SCHEDULE H, PART IV, LINE 4i — SCHEDULE OF ASSETS (HELD AT END OF YEAR)
MARCH 31, 2008
                         
            Shares/Units/Interest        
Investment/Fund Name   Cost Basis     Rate     Fair Value  
* FID SEL NET & INFSTR
    74,589       33,341       63,681  
* FID SEL WIRELESS
    648,406       79,070       549,535  
* FID BLUE CHIP VALUE
    1,244,487       83,972       1,110,948  
* FID NASDAQ COMP INDX
    148,260       4,674       141,292  
* FID FREEDOM 2005
    246,222       21,390       239,350  
* FID FREEDOM 2015
    5,966,174       478,303       5,610,489  
* FID FREEDOM 2025
    5,048,707       394,944       4,798,570  
* FID FREEDOM 2035
    2,497,003       189,116       2,346,933  
* FID STRAT DIV & INC
    354,738       27,588       321,675  
* FID FOCUSED HIGH INC
    20,592       2,087       19,955  
* FID INTL REAL ESTATE
    1,767,148       117,250       1,436,309  
* FID SMALL CAP GROWTH
    601,273       39,674       530,051  
* FID SMALL CAP VALUE
    438,136       30,786       369,129  
* FID INTL SM CAP OPP
    504,031       31,956       416,710  
* FID STRAT REAL RET
    60,702       5,991       61,226  
* FID FREEDOM 2045
    300,305       26,358       269,907  
* FID FREEDOM 2050
    332,555       29,275       300,366  
* OUTSTANDING LOAN BALANCE (3,762 loans, interest rates from 4% to 11%)
                    26,077,957  
 
                     
Total
  $ 1,596,390,837             $ 1,816,725,000  
 
                   
 
*   Party-in-interest

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SIGNATURES
     Pursuant to the requirements of the Securities Exchange Act of 1934, the Plan administrator has duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.
         
  McKesson Corporation Profit-Sharing Investment Plan
 
 
Dated: September 19, 2008  /s/ Jeffrey C. Campbell    
  Jeffrey C. Campbell   
  Executive Vice President and Chief Financial Officer   
 
     
  /s/ Jorge Figueredo    
  Jorge Figueredo   
  Executive Vice President Human Resources   
 

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