Purchase Warrant THIS CERTIFIES THAT, in consideration of funds duly paid by or on behalf of _________ (“Holder”), as registered owner of this Purchase Warrant, to Aytu BioScience, Inc., a Delaware corporation (the “Company”), Holder is entitled, at any time or from time to time from [________________] [DATE THAT IS ONE YEAR FROM THE EFFECTIVE DATE OF THE OFFERING] (the “Commencement Date”), and at or before 5:00 p.m., Eastern time, [____________] [DATE THAT IS FIVE YEARS FROM THE EFFECTIVE DATE OF THE OFFERING] (the ”Expiration Date”), but not thereafter, to subscribe for, purchase and receive, in whole or in part, up to [____] shares of common stock of the Company, par value $0.0001 per share (the “Shares”), subject to adjustment as provided in Section 6 hereof. If the Expiration Date is a day on which banking institutions are authorized by law to close, then this Purchase Warrant may be exercised on the next succeeding day which is not such a day in accordance with the terms herein. During the period ending on the Expiration Date, the Company agrees not to take any action that would terminate this Purchase Warrant. This Purchase Warrant is initially exercisable at $[___] per Share [125% of the price of the Shares sold in the Offering]; provided, however, that upon the occurrence of any of the events specified in Section 6 hereof, the rights granted by this Purchase Warrant, including the exercise price per Share and the number of Shares to be received upon such exercise, shall be adjusted as therein specified. The term “Exercise Price” shall mean the initial exercise price or the adjusted exercise price, depending on the context.