In order to prevent dilution of the rights granted hereunder, the Number of Shares and Exchange Price shall be subject to adjustment from time to time in accordance with this Section 4. Upon each adjustment of the Exchange Price pursuant to this Section 4, Holder shall thereafter be entitled to acquire upon conversion, at the Exchange Price resulting from such adjustment, the number of shares of Warrant Stock obtainable by multiplying the Exchange Price in effect immediately prior to such adjustment by the number of shares of Warrant Stock acquirable immediately prior to such adjustment and dividing the product thereof by the new Exchange Price resulting from such adjustment.