INTUITIVE SURGICAL INC

Ticker: ISRG CUSIP: 46120E602 Class: COM NEW

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

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

Q3 2015

Shares 29,100 Value ($000) $13,374 Avg Close $56.64 Range $50.07 - $62.76

Q2 2015

Shares 32,350 Value ($000) $15,674 Avg Close $55.94 Range $53.34 - $62.12

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2015	29,100	$13,374	$56.64	$50.07 - $62.76
Q2 2015	32,350	$15,674	$55.94	$53.34 - $62.12