Item 8.01. Other Events.
On May 21, 2009, David B. Snow, Jr., chairman and chief executive officer of Medco Health Solutions, Inc. (the "Company"), adopted a pre-arranged trading plan in accordance with guidelines specified by Rule 10b5-1 under the Securities and Exchange Act of 1934, the Company's policies with respect to insider sales and the Company's policy on stock ownership by executives. Rule 10b5-1 permits officers and directors of public companies to adopt plans for selling specified amounts of stock. The plans may be entered into only when the officer or director is not in possession of material, nonpublic information and may be used to diversify investment portfolios over a period of time.
Under Mr. Snow's Rule 10b5-1 plan, he will exercise employee stock options and sell 476,200 shares at a specific price as part of his personal financial and tax planning. This represents approximately 14 percent of Mr. Snow's current equity interests in the Company. Following this transaction, Mr. Snow's ownership of Company securities exceeds his obligations under the Company's policy on stock ownership by executives. Details regarding this policy are contained in the Company's 2009 Proxy Statement filed with the Securities and Exchange Commission on April 7, 2009.
Transactions under the plan may occur between the third quarter of 2009 and the end of 2010 and will be reported to the Securities and Exchange Commission in accordance with applicable securities laws, rules and regulations.
The Company does not intend to report on Form 8-K any Rule 10b5-1 plans that may be adopted by any other officers or directors. In addition, the Company undertakes no obligation to report on Form 8-K any modifications or termination of any publicly announced trading plan, except to the extent as may be required by law.

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