GERON CORP

Ticker: GERN CUSIP: 374163103 Class: COM

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

Note: Option positions (PUT/CALL) are excluded.

Q4 2014

Shares 11,549 Value ($000) $37 Avg Close $2.77 Range $1.76 - $3.96

Q3 2014

Shares 10,500 Value ($000) $21 Avg Close $2.46 Range $1.98 - $3.12

Q2 2014

Shares 10,500 Value ($000) $34 Avg Close $2.09 Range $1.60 - $3.28

Q1 2014

Shares 10,500 Value ($000) $21 Avg Close $3.99 Range $1.31 - $5.60

Q4 2013

Shares 25,500 Value ($000) $120 Avg Close $4.29 Range $2.50 - $7.36

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2014	11,549	$37	$2.77	$1.76 - $3.96
Q3 2014	10,500	$21	$2.46	$1.98 - $3.12
Q2 2014	10,500	$34	$2.09	$1.60 - $3.28
Q1 2014	10,500	$21	$3.99	$1.31 - $5.60
Q4 2013	25,500	$120	$4.29	$2.50 - $7.36