INTUITIVE SURGICAL INC

Ticker: ISRG CUSIP: 46120E602 Class: COM NEW

BRIDGEWAY CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001107261)

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

Q1 2018

Shares 7,720 Value ($000) $3,187 Avg Close $139.55 Range $121.70 - $150.67

Q4 2017

Shares 7,720 Value ($000) $2,817 Avg Close $125.15 Range $116.40 - $135.02

Q3 2017

Shares 6,600 Value ($000) $6,903 Avg Close $108.96 Range $102.29 - $117.20

Q2 2017

Shares 6,600 Value ($000) $6,173 Avg Close $96.11 Range $83.71 - $107.06

Q1 2017

Shares 6,600 Value ($000) $5,059 Avg Close $79.00 Range $69.41 - $85.59

Q4 2016

Shares 6,600 Value ($000) $4,186 Avg Close $73.52 Range $67.86 - $80.81

Q3 2016

Shares 10,500 Value ($000) $7,611 Avg Close $76.57 Range $73.23 - $80.79

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	7,720	$3,187	$139.55	$121.70 - $150.67
Q4 2017	7,720	$2,817	$125.15	$116.40 - $135.02
Q3 2017	6,600	$6,903	$108.96	$102.29 - $117.20
Q2 2017	6,600	$6,173	$96.11	$83.71 - $107.06
Q1 2017	6,600	$5,059	$79.00	$69.41 - $85.59
Q4 2016	6,600	$4,186	$73.52	$67.86 - $80.81
Q3 2016	10,500	$7,611	$76.57	$73.23 - $80.79