Financial Information for Genzyme Investors

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The information listed below is intended to assist stockholders in determining their tax basis in any stock which was involved in a merger or acquisition.

Genzyme Biosurgery 6.30.03

Genzyme Molecular Oncology 6.30.03

GelTex Pharmaceuticals 12.14.00

Genzyme Biosurgery 12.18.00

Genzyme Surgical Products 11.28.99

Genzyme Molecular Oncology 11.16.98

Genzyme Tissue Repair 7.22.97

Genzyme Tissue Repair 12.23.94


	CONTACT INFORMATION:
	Genzyme Investor Relations 500 Kendall Street Cambridge, MA 02142 T: 617 252 7500 Patrick Flanigan – 617 768 6563 Investor Information Line U.S. T: 800 905 4369 Outside the U.S. T: 678 999 4572 Shareholder Contact For questions about your shares, replacement of a lost stock certificate or a change of address call our transfer agent. American Stock Transfer 59 Maiden Lane New York, NY 10038 T: 212 936 5100 or Genzyme Shareholder Services T: 617 768 6686