AGREEMENT TO PARTICIPATE IN THE
FACET BIOTECH CORPORATION
RETENTION AND SEVERANCE PLAN
Effective December 18, 2008
In consideration of the benefits provided by the Facet Biotech Corporation Retention and Severance
Plan (the “ Plan ” ), the undersigned employee of Facet Biotech Corporation (the “ Company ” ) and the
Company agree that, as of the date written below, the undersigned shall become a Participant in the Plan and
shall be fully bound by and subject to all of its provisions, subject to the modification of Section 6.1 thereof, titled
“Federal Excise Tax Under Section 4999 of the Code,” set forth in Appendix A attached hereto. All references
to a “Participant” in the Plan shall be deemed to refer to the undersigned.
The undersigned employee acknowledges that the Plan confers significant legal rights and may also
constitute a waiver of rights under other agreements with the Company; that the Company has encouraged the
undersigned to consult with the undersigned’s personal legal and financial advisors; and that the undersigned has
had adequate time to consult with the undersigned’s advisors before executing this agreement.
The undersigned employee acknowledges that he or she has received a copy of the Plan and has read,
understands and is familiar with the terms and provisions of the Plan. The undersigned employee further
acknowledges that (1) by accepting the arbitration provision set forth in Section 13 of the Plan, the undersigned is
waiving any right to a jury trial in the event of any dispute covered by such provision and (2) except as otherwise
established in an employment agreement between a member of the Company Group and the undersigned, the
employment relationship between the undersigned and the Company Group is an “at-will” relationship.
Executed on December 18, 2008.
Facet Biotech Corporation
/s/ Faheem Hasnain
/s/ Francis Sarena