CUSIP No. 00000X000
Exhibit I
AGREEMENT
Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934,
as amended, the undersigned hereby agree that only one statement containing the
information required by Schedule 13G need be filed with respect to the ownership
by each of the undersigned of the shares of Common Stock of Exact Sciences
Corporation.
EXECUTED as a sealed instrument this 11th day of February, 2004.
GREYLOCK EQUITY LIMITED PARTNERSHIP
By: Greylock Equity GP Limited Partnership
General Partner
By: /s/ Xxxxx X. XxXxxxx
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Xxxxx X. XxXxxxx
Managing General Partner
GREYLOCK EQUITY GP LIMITED PARTNERSHIP
By: /s/ Xxxxx X. XxXxxxx
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Xxxxx X. XxXxxxx
Managing General Partner
/s/ Xxxxx X. XxXxxxx
------------------------------------------
Xxxxx X. XxXxxxx
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