Item 8.01. Other Events.

On May 4, 2009, Joel F. Gemunder, the President and Chief Executive Officer of Omnicare, Inc. (the "Company" or "Omnicare"), amended the previously disclosed written stock sales plan that was initially established on May 30, 2008 (as amended, the "Amended Plan") in accordance with the guidelines specified under Rule 10b5-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act") and the Company's policies regarding securities transactions.

Mr. Gemunder amended the existing stock sales plan in order to provide for the orderly sale of shares of Omnicare common stock underlying certain of his Omnicare stock options that will reach their 10-year expiration date on July 1, 2009. Under the Amended Plan, a broker not affiliated with the Company will sell shares of Omnicare common stock either owned by Mr. Gemunder or issued upon the exercise of certain of his Omnicare stock options. Any sales are subject to share amounts, minimum prices and other conditions set forth in the Amended Plan and will be made during the period from June 3, 2009 to March 1, 2010, the expiration date of the Amended Plan.

Rule 10b5-1 allows corporate insiders who are not in possession of material non-public information to establish pre-arranged plans to buy or sell stock. These plans are generally designed to minimize the market effect of insider purchases or sales by spreading these purchases or sales over a more extended period. Additionally, through the use of these plans, insiders can gradually diversify their investment portfolios and can avoid real or perceived conflicts of interest in connection with the trading of securities.

Any sales made under the Amended Plan will be publicly disclosed as required by applicable securities laws.

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