This excerpt taken from the SUI 8-K filed Jun 3, 2008.
Adjustments to Purchase Price
The Purchase Price payable, and the number of shares of Preferred Stock (or Common Stock or other securities, as the case may be) issuable, upon exercise of the Rights are subject to adjustment from time to time to prevent dilution (i) in the event of a stock dividend on, or a subdivision, combination, reclassification or recapitalization of the Preferred Stock, (ii) upon the grant to holders of the Preferred Stock of certain rights or warrants to subscribe for shares of the Preferred Stock or convertible securities at less than the current market price of the Preferred Stock or (iii) upon the distribution to holders of the Preferred Stock of evidences of indebtedness or assets (excluding regular periodic cash dividends out of earnings or retained earnings or dividends payable in the Preferred Stock) or of subscription rights or warrants (other than those referred to above).
With certain exceptions, no adjustment in the Purchase Price will be required until the earlier of (i) three years from the date of the event giving rise to such adjustment and (ii) the time at which cumulative adjustments require an adjustment of at least 1% in such Purchase Price. No fractional shares will be issued (other than fractional shares which are integral multiples of one one-hundredth of a share of Preferred Stock) and, in lieu thereof, an adjustment in cash will be made based on the market price of the Preferred Stock on the last trading date prior to the date of exercise.