0001140361-14-024215 4 1 20140529 20140602 20140602 CALPINE CORP 0000916457 4911 770212977 DE 1231 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 7138302000 717 TEXAS AVENUE SUITE 1000 HOUSTON TX 77002 MILLER W. THADDEUS 0001442784 4 34 001-12079 14885620 717 TEXAS AVENUE, SUITE 1000 HOUSTON TX 77002 4 1 doc1.xml FORM 4