Certain Warrants of Eiger BioPharmaceuticals, Inc. are subject to a Lock-Up Agreement Ending on 10-JAN-2018. These Warrants will be under lockup for 75 days starting from 27-OCT-2017 to 10-JAN-2018. Details: The company, executive officers and directors and certain of principal stockholders have agreed, subject to specified exceptions, not to directly or indirectly sell, offer to sell, contract to sell or lend any shares or related securities or effect any short sale or pledge, hypothecate or grant any security interest in any shares or related securities, or in any other way transfer or dispose of any shares or related securities, or enter into any swap, hedge or similar arrangement or agreement that transfers, in whole or in part, the economic risk of ownership of any shares for a period of 75 days after the date of the final prospectus without the prior written consent of BTIG, LLC.