IMCLONE SYSTEMS 
By Mr.
Chairman and Chief Executive Office
Bristol-Myers Squibb Company
345 Park Avenue
Dear Jim:
Your letter of yesterday contains inaccuracies which are misleading to our shareholders. Your statements that there have not been any meaningful discussions concerning your proposal have no basis in fact. Indeed during the last few weeks we told you we would be happy to meet if you wished to increase your offer to which you replied you had no intention to do. I also told you a large Pharma company had offered
Sincerely,
Chairman of the Board
About ImClone Systems
ImClone Systems Incorporated is a fully integrated global biopharmaceutical company committed to advancing oncology care by developing and commercializing a portfolio of targeted biologic treatments designed to address the medical needs of patients with a variety of cancers. The Company's research and development programs include growth factor blockers and angiogenesis inhibitors. ImClone Systems' headquarters and research operations are located in
Important Information about the Press Release
The tender offer referred to in this press release has not commenced and this press release is neither an offer to buy nor invitation to purchase any securities, or an offer to sell any securities. This does not constitute a recommendation as to any tender offer nor does this communication constitute a solicitation of any vote or approval.
Investors and security holders are urged to read any disclosure documents filed with the SEC including any tender offer statement and Imclone Systems' recommendation when it is available because they contain important information. Investors and security holders will be able to obtain a free copy of the disclosure documents and recommendation (when they are available) and other documents filed with the SEC at the SEC's website at www.sec.gov or from Imclone Systems at its office at 180 Varick Street,
Forward Looking Information
Certain matters discussed in this news release may constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and the Federal securities laws. Although the Company believes that the expectations reflected in such forward-looking statements are based upon reasonable assumptions it can give no assurance that its expectations will be achieved. Forward-looking information is subject to certain risks, trends and uncertainties that could cause actual results to differ materially from those currently expected. Many of these factors are beyond the Company's ability to control or predict. Important factors that may cause actual results to differ materially and could impact the Company and the statements contained in this news release can be found in the Company's filings with the Securities and Exchange Commission, particularly those factors identified as "risk factors" in the Company's most recent annual report of Form 10-K and in its quarterly reports on Form 10-Q and current reports on Form 8-K. For forward-looking statements in this news release, the Company claims the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. The company assumes no obligation to update or supplement any forward-looking statements whether as a result of new information, future events or otherwise.
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