EXHIBIT 10.12 SIMPLEX SOLUTIONS, INC. 1995 STOCK PLAN RESTRICTED STOCK PURCHASE AGREEMENT This Restricted Stock Purchase Agreement (the "Agreement") is made as of March 30, 1999 by and between Simplex Solutions, Inc., a Delaware corporation (the...Restricted Stock Purchase Agreement • December 31st, 2001 • Simplex Solutions Inc • Services-computer programming services • California
