Historical shareholding details of Dr. Robert Jay Spiegel, F.A.C.P. holdings in Geron Corp. (GERN)

Monthly changes of Dr. Robert Jay Spiegel, F.A.C.P. shareholding in Geron Corp. over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Jun 30, 2025	Dr. Robert Jay Spiegel, F.A.C.P.	182,844	0.09%

Mar 31, 2025	Dr. Robert J. Spiegel, F.A.C.P.,M.D.	177,304	0.09%

Dec 31, 2024	Dr. Robert J. Spiegel, F.A.C.P.,M.D.	172,391	0.09%

Sep 30, 2024	Dr. Robert J. Spiegel, F.A.C.P.,M.D.	170,185	0.09%

Jun 28, 2024	Dr. Robert J. Spiegel, F.A.C.P.,M.D.	168,418	0.08%

Dec 29, 2023	Dr. Robert J. Spiegel, F.A.C.P.,M.D.	164,040	0.08%

Sep 29, 2023	Dr. Robert J. Spiegel, F.A.C.P.,M.D.	160,634	0.08%

Mar 31, 2023	Dr. Robert J. Spiegel, F.A.C.P.,M.D.	155,005	0.08%