Item 1.01 Entry into a Material Definitive Agreement.

On October 28, 2009, Unica Corporation (the "Company") entered into a Sixth Amendment to Lease (the "Amendment") with Tracer Lane Trust II (the "Landlord"), which amends the Lease dated December 20, 2002, as amended, between the Company and Landlord (the "Lease"), pursuant to which the Company currently leases approximately 73,000 square feet of office space at 170 Tracer Lane, Waltham, Massachusetts comprising the Company's principal executive offices (the "Premises"). Pursuant to the Amendment, the term of the Lease was extended for a period of five years beginning on May 1, 2010 and ending on April 30, 2015. The Company has an option to extend the term of the Lease for one three-year period.

The annual fixed rent for the Premises will be approximately $1.8 million, and will increase in predetermined amounts and at specified times during the term of the Lease, as specified in the Lease, up to a maximum of approximately $2.0 million in May 2014. In addition to the annual fixed rent, the Company will be responsible for certain costs and charges, including certain operating expenses and real estate taxes, specified in the Lease. The Landlord has agreed to make certain improvements and provide an additional allowance to the Company for certain other improvements, in an aggregate amount of approximately $1.3 million, or $17.72 per square foot. The Company also agreed to increase its security deposit from $143,877 to $250,000, either in the form of an irrevocable letter of credit to be held by the Landlord or in cash.

The foregoing summary of the Amendment is subject to, and qualified in its entirety by the Amendment attached hereto as Exhibit 10.1 and incorporated herein by reference.

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