1 EXHIBIT 99.1 CELL GENESYS, INC. CONDENSED CONSOLIDATING BALANCE SHEET DECEMBER 31, 1997 (IN THOUSANDS) (UNAUDITED) Cell Genesys, Abgenix, Elimination Inc. Inc. Entries Consolidated ASSETS Current assets: Cash and cash equivalents $ 6,014 $ 4,617 $ 10,631 Short-term investments 67,481 10,704 78,185 Prepaid expenses and other current assets 2,605 550 $ (212) 2,943 --------- --------- --------- Total current assets 76,100 15,871 91,759 --------- --------- --------- Property and equipment, net 8,039 5,776 13,815 Deposits and other assets 30,026 437 (29,150) 1,313 ========= ========= ========= $ 114,165 $ 22,084 $ 106,887 ========= ========= ========= LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities: Accounts payable $ 1,642 $ 448 $ 2,090 Accrued compensation and benefits 662 230 892 Deferred revenue from related parties 5,993 -- 5,993 Accrued construction costs 22 -- 22 Accrued legal expenses 179 958 1,137 Accrued acquisition and related costs 1,648 -- 1,648 Other accrued liabilities 2,273 2,203 (212) 4,264 Current portion of property and equipment financing 3,513 1,646 5,159 Contribution payable to related party -- 3,750 3,750 Convertible note payable 15,000 -- 15,000 --------- --------- --------- Total current liabilities 30,932 9,235 39,955 --------- --------- --------- Noncurrent portion of property and equipment financing 7,103 3,979 11,082 Commitments and contingencies Redeemable convertible preferred stock 19,817 31,191 (31,191) 19,817 Minority interest in the equity of subsidiary -- -- 17,392 17,392 Stockholders' equity: Common stock 28 351 (351) 28 Contributions from parent -- 15,000 (15,000) -- Additional paid-in capital 197,792 1,703 199,495 Deferred compensation of subsidiary -- (1,319) (1,319) Accumulated deficit (141,507) (38,056) (179,563) --------- --------- --------- Total stockholders' equity 56,313 (8,870) 18,641 ========= ========= ========= ========= $ 114,165 $ 22,084 $ -- $ 106,887 ========= ========= ========= =========