X0202 4 2004-08-16 1 0000886744 GERON CORPORATION GERN 0001105533 MERIX BIOSCIENCE INC 4233 TECHNOLOGY DRIVE DURHAM NC 27704 0 0 1 0 Common Stock 2004-08-16 4 S 0 24 5.51 D 4606576 D Common Stock 2004-08-16 4 S 0 4500 5.52 D 4602076 D Common Stock 2004-08-16 4 S 0 1200 5.53 D 4600876 D Common Stock 2004-08-16 4 S 0 10600 5.55 D 4590276 D Common Stock 2004-08-16 4 S 0 12723 5.56 D 4577553 D Common Stock 2004-08-16 4 S 0 6939 5.57 D 4570614 D Common Stock 2004-08-16 4 S 0 5514 5.58 D 4565100 D Common Stock 2004-08-16 4 S 0 8000 5.59 D 4557100 D Common Stock 2004-08-16 4 S 0 9114 5.60 D 4547986 D Common Stock 2004-08-16 4 S 0 2800 5.61 D 4545186 D Common Stock 2004-08-16 4 S 0 4086 5.62 D 4541100 D Timothy Trost, Chief Financial Officer 2004-08-18