GERON CORP

Ticker: GERN CUSIP: 374163103 Class: COM

Palo Alto Investors LP's Holding History (CIK: 0001306923)

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

Q3 2014

Shares 1,161,400 Value ($000) $2,323 Avg Close $2.46 Range $1.98 - $3.12

Q2 2014

Shares 1,259,500 Value ($000) $4,043 Avg Close $2.09 Range $1.60 - $3.28

Q1 2014

Shares 507,300 Value ($000) $1,060 Avg Close $3.99 Range $1.31 - $5.60

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2014	1,161,400	$2,323	$2.46	$1.98 - $3.12
Q2 2014	1,259,500	$4,043	$2.09	$1.60 - $3.28
Q1 2014	507,300	$1,060	$3.99	$1.31 - $5.60