Our stock is traded on Nasdaq under the symbol HGEN.
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December 31st
Computershare Trust Company, N.A. 250 Royall Street Canton, MA 02021 T: 800-662-7232 www.computershare.com
Horne LLP 1020 Highland Colony Parkway Suite 400 Ridgeland, MS 39157
Polsinelli PC 900 West 48th Place Suite 900 Kansas City, MO 64112