Three Months Ended

December 31,
2019

September 30,
2019

June 30,
2019

March 31,
2019

Revenue

$

1,277.7

$

1,128.2

$

1,098.9

$

973.7

Gross profit

$

896.0

$

785.6

$

759.0

$

669.6

Net income attributable to Intuitive Surgical, Inc. ^(1)(2)(3)

$

357.7

$

396.8

$

318.3

$

306.5

Net income attributable to Intuitive Surgical, Inc. per share:

Basic

$

3.09

$

3.44

$

2.76

$

2.67

Diluted

$

2.99

$

3.33

$

2.67

$

2.56

(1) Includes discrete tax benefits as follows:

Excess tax benefits related to share-based compensation arrangements

$

33.7

$

28.8

$

11.3

$

72.7

One-time tax benefit related to the enactment of Swiss tax reform

$

—

$

51.3

$

—

$

—

(2) Includes acquisition-related benefits (charges)

$

(3.1)

$

3.0

$

(4.1)

$

(3.0)

(3) Includes charitable foundation contribution expense

$

(5.0)

$

—

$

—

$

—

Three Months Ended

December 31,
2018

September 30,
2018

June 30,
2018

March 31,
2018

Revenue

$

1,046.5

$

920.9

$

909.3

$

847.5

Gross profit

$

735.7

$

642.3

$

632.3

$

593.8

Net income attributable to Intuitive Surgical, Inc. ^(1)(2)(3)

$

292.5

$

292.5

$

255.3

$

287.6

Net income attributable to Intuitive Surgical, Inc. per share:

Basic

$

2.56

$

2.57

$

2.25

$

2.55

Diluted

$

2.45

$

2.45

$

2.15

$

2.44

(1) Includes discrete tax benefits as follows:

Excess tax benefits related to share-based compensation arrangements

$

15.8

$

24.1

$

21.6

$

54.7

Certain one-time tax benefits

$

2.5

$

4.6

$

—

$

—

(2) Includes pre-tax litigation benefits (charges)

$

—

$

1.8

$

(42.5)

$

(4.5)

(3) Includes charitable foundation contribution expense

$

(25.2)

$

—

$

—

$

—