(5) | The amounts shown and the following information are derived from the Schedule 13G/A filed on February 14, 2019 by Partner Fund Management, L.P., or PFM, Partner Fund Management GP, LLC, orPFM-GP, Partner Investment Management, L.P., or PIM, Partner Investment Management GP, LLC, orPIM-GP, Brian D. Grossman, or Grossman, and Christopher M. James, or James and, collectively with PFM,PFM-GP, PIM,PIM-GP and Grossman, the PFM Reporting Persons. All shares are owned by PFM Healthcare Emerging Growth Master Fund, L.P., a Cayman Islands limited partnership, or HEGM, PFM Healthcare Master Fund, L.P., a Cayman Islands limited partnership, or HCM, PFM Healthcare Long Master Fund, L.P., a Cayman Islands limited partnership, or HCLM, PFM Healthcare Principals Fund, L.P., a Delaware limited partnership, or HCP, and Partner Investments, L.P., a Delaware limited partnership, or PI and, collectively with HEGM, HCM, HCLM and HCP, the Funds. PFM is the investment advisor for HEGM, HCM, HCOPP and HCLM. PIM is the investment advisor for HCP and PI.PFM-GP andPIM-GP are, respectively, the general partners of PFM and PIM. Grossman is the portfolio manager for the health care strategy for the Funds. James is the portfolio manager for the diversified strategy for the Funds. Grossman and James areco-managing members ofPFM-GP andPIM-GP. PFM andPFM-GP may be deemed to beneficially own 1,768,104 shares of Common Stock. PIM andPIM-GP may be deemed to beneficially own 301,889 shares of Common Stock. Grossman may be deemed to beneficially own 2,069,993 shares of Common Stock. James may be deemed to beneficially own 2,069,993 shares of Common Stock. The address of the principal business office of the PFM Reporting Persons is c/o Partner Fund Management, L.P., 4 Embarcadero Center, Suite 3500, San Francisco, CA 94111. |