e424b3
Filed Pursuant to Rule 424(b)(3)
Registration No. 333-133652
 
GRUBB & ELLIS HEALTHCARE REIT, INC.
 
SUPPLEMENT NO. 12 DATED JULY 31, 2008
TO THE PROSPECTUS DATED DECEMBER 14, 2007
 
This document supplements, and should be read in conjunction with, our prospectus dated December 14, 2007, as supplemented by Supplement No. 11 dated July 21, 2008, relating to our offering of 221,052,632 shares of common stock. The purpose of this Supplement No. 12 is to disclose:
 
  •  the status of our initial public offering; and
 
  •  information regarding the liquidity of the prior public programs sponsored by our sponsor.
 
Status of Our Initial Public Offering
 
As of July 11, 2008, we had received and accepted subscriptions in our offering for 40,624,653 shares of our common stock, or approximately $405,804,000, excluding shares issued under our distribution reinvestment plan. As of July 11, 2008, approximately 159,375,347 shares remained available for sale to the public under our initial public offering, exclusive of shares available under our distribution reinvestment plan. We will sell shares in our offering until the earlier of September 20, 2009, or the date on which the maximum amount has been sold.
 
Prior Public Program Liquidity
 
New Financial Industry Regulatory Authority, or FINRA, regulations require that we disclose the liquidity of our sponsor’s prior public programs. Our sponsor, Grubb & Ellis Company, or one of its affiliates, has sponsored three other public programs, G REIT, Inc., T REIT, Inc. and Grubb & Ellis Apartment REIT, Inc., each of which stated in its prospectus a date or time period by which the program might be liquidated. G REIT, Inc. and T REIT, Inc. each commenced an orderly liquidation prior to their anticipated liquidation dates. Grubb & Ellis Apartment REIT, Inc. commenced its initial public offering on July 19, 2006 and has not yet reached its anticipated liquidation date.