INTUITIVE SURGICAL INC

Ticker: ISRG CUSIP: 46120E602 Class: COM NEW

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q4 2025

Shares 209,353 Value ($000) $118,569 Avg Close $532.37 Range $427.84 - $583.45

Q3 2025

Shares 213,453 Value ($000) $95,463 Avg Close $479.87 Range $429.72 - $550.70

Q2 2025

Shares 201,953 Value ($000) $109,743 Avg Close $522.87 Range $425.00 - $568.69

Q1 2025

Shares 201,253 Value ($000) $99,675 Avg Close $553.02 Range $474.37 - $616.00

Q4 2024

Shares 201,153 Value ($000) $104,994 Avg Close $520.85 Range $470.06 - $556.23

Q3 2024

Shares 201,053 Value ($000) $98,771 Avg Close $465.56 Range $413.82 - $496.18

Q2 2024

Shares 197,653 Value ($000) $87,926 Avg Close $398.28 Range $364.17 - $447.11

Q1 2024

Shares 197,053 Value ($000) $78,642 Avg Close $377.87 Range $320.26 - $403.76

Q4 2023

Shares 216,853 Value ($000) $73,158 Avg Close $298.09 Range $254.85 - $340.49

Q3 2023

Shares 216,853 Value ($000) $63,384 Avg Close $312.30 Range $282.50 - $358.07

Q2 2023

Shares 229,253 Value ($000) $78,391 Avg Close $302.56 Range $250.01 - $344.08

Q1 2023

Shares 229,153 Value ($000) $58,542 Avg Close $246.36 Range $222.65 - $273.58

Q4 2022

Shares 228,953 Value ($000) $60,753 Avg Close $243.83 Range $180.07 - $285.09

Q3 2022

Shares 129,553 Value ($000) $24,283 Avg Close $214.77 Range $184.94 - $245.36

Q2 2022

Shares 129,753 Value ($000) $26,043 Avg Close $234.60 Range $186.83 - $308.97

Q1 2022

Shares 118,153 Value ($000) $35,644 Avg Close $292.14 Range $254.20 - $362.00

Q4 2021

Shares 115,521 Value ($000) $41,507 Avg Close $344.06 Range $313.69 - $369.69

Q3 2021

Shares 29,807 Value ($000) $29,633 Avg Close $335.80 Range $305.50 - $362.34

Q2 2021

Shares 29,807 Value ($000) $27,412 Avg Close $280.54 Range $248.63 - $308.68

Q1 2021

Shares 30,107 Value ($000) $22,247 Avg Close $251.58 Range $227.47 - $275.28

Q4 2020

Shares 30,207 Value ($000) $24,712 Avg Close $248.30 Range $217.67 - $275.60

Q3 2020

Shares 30,807 Value ($000) $21,859 Avg Close $224.54 Range $188.74 - $259.61

Q2 2020

Shares 29,807 Value ($000) $16,985 Avg Close $179.26 Range $150.00 - $200.40

Q1 2020

Shares 56,468 Value ($000) $27,964 Avg Close $183.15 Range $120.17 - $206.33

Q4 2019

Shares 57,968 Value ($000) $34,268 Avg Close $187.24 Range $167.34 - $200.53

Q3 2019

Shares 82,668 Value ($000) $44,635 Avg Close $172.96 Range $160.67 - $183.00

Q2 2019

Shares 66,668 Value ($000) $34,971 Avg Close $171.34 Range $151.72 - $196.44

Q1 2019

Shares 71,968 Value ($000) $41,064 Avg Close $177.73 Range $148.82 - $193.08

Q4 2018

Shares 32,668 Value ($000) $15,645 Avg Close $169.46 Range $143.41 - $193.71

Q3 2018

Shares 33,868 Value ($000) $19,440 Avg Close $177.57 Range $157.27 - $191.80

Q2 2018

Shares 33,568 Value ($000) $16,062 Avg Close $152.50 Range $131.19 - $165.64

Q1 2018

Shares 33,068 Value ($000) $13,651 Avg Close $139.55 Range $121.70 - $150.67

Q4 2017

Shares 32,868 Value ($000) $11,995 Avg Close $125.15 Range $116.40 - $135.02

Q3 2017

Shares 11,356 Value ($000) $11,877 Avg Close $108.96 Range $102.29 - $117.20

Q2 2017

Shares 12,156 Value ($000) $11,370 Avg Close $96.11 Range $83.71 - $107.06

Q1 2017

Shares 12,056 Value ($000) $9,241 Avg Close $79.00 Range $69.41 - $85.59

Q4 2016

Shares 12,656 Value ($000) $8,026 Avg Close $73.52 Range $67.86 - $80.81

Q3 2016

Shares 13,384 Value ($000) $9,701 Avg Close $76.57 Range $73.23 - $80.79

Q2 2016

Shares 14,884 Value ($000) $9,844 Avg Close $70.37 Range $65.67 - $73.72

Q1 2016

Shares 18,384 Value ($000) $11,050 Avg Close $61.97 Range $55.78 - $67.53

Q4 2015

Shares 12,784 Value ($000) $6,982 Avg Close $56.16 Range $49.67 - $61.84

Q3 2015

Shares 13,384 Value ($000) $6,151 Avg Close $56.64 Range $50.07 - $62.76

Q2 2015

Shares 14,284 Value ($000) $6,921 Avg Close $55.94 Range $53.34 - $62.12

Q1 2015

Shares 14,084 Value ($000) $7,113 Avg Close $56.60 Range $54.07 - $59.79

Q4 2014

Shares 14,884 Value ($000) $7,873 Avg Close $55.69 Range $49.93 - $59.87

Q3 2014

Shares 14,784 Value ($000) $6,828 Avg Close $49.65 Range $41.78 - $53.67

Q2 2014

Shares 15,784 Value ($000) $6,500 Avg Close $44.11 Range $38.50 - $60.14

Q1 2014

Shares 51,384 Value ($000) $22,506 Avg Close $47.10 Range $41.11 - $51.39

Q4 2013

Shares 51,284 Value ($000) $19,697 Avg Close $42.08 Range $39.02 - $45.43

Q3 2013

Shares 51,984 Value ($000) $19,560 Avg Close $44.16 Range $39.67 - $56.58

Q2 2013

Shares 16,284 Value ($000) $8,249 Avg Close $55.09 Range $51.68 - $57.34

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	209,353	$118,569	$532.37	$427.84 - $583.45
Q3 2025	213,453	$95,463	$479.87	$429.72 - $550.70
Q2 2025	201,953	$109,743	$522.87	$425.00 - $568.69
Q1 2025	201,253	$99,675	$553.02	$474.37 - $616.00
Q4 2024	201,153	$104,994	$520.85	$470.06 - $556.23
Q3 2024	201,053	$98,771	$465.56	$413.82 - $496.18
Q2 2024	197,653	$87,926	$398.28	$364.17 - $447.11
Q1 2024	197,053	$78,642	$377.87	$320.26 - $403.76
Q4 2023	216,853	$73,158	$298.09	$254.85 - $340.49
Q3 2023	216,853	$63,384	$312.30	$282.50 - $358.07
Q2 2023	229,253	$78,391	$302.56	$250.01 - $344.08
Q1 2023	229,153	$58,542	$246.36	$222.65 - $273.58
Q4 2022	228,953	$60,753	$243.83	$180.07 - $285.09
Q3 2022	129,553	$24,283	$214.77	$184.94 - $245.36
Q2 2022	129,753	$26,043	$234.60	$186.83 - $308.97
Q1 2022	118,153	$35,644	$292.14	$254.20 - $362.00
Q4 2021	115,521	$41,507	$344.06	$313.69 - $369.69
Q3 2021	29,807	$29,633	$335.80	$305.50 - $362.34
Q2 2021	29,807	$27,412	$280.54	$248.63 - $308.68
Q1 2021	30,107	$22,247	$251.58	$227.47 - $275.28
Q4 2020	30,207	$24,712	$248.30	$217.67 - $275.60
Q3 2020	30,807	$21,859	$224.54	$188.74 - $259.61
Q2 2020	29,807	$16,985	$179.26	$150.00 - $200.40
Q1 2020	56,468	$27,964	$183.15	$120.17 - $206.33
Q4 2019	57,968	$34,268	$187.24	$167.34 - $200.53
Q3 2019	82,668	$44,635	$172.96	$160.67 - $183.00
Q2 2019	66,668	$34,971	$171.34	$151.72 - $196.44
Q1 2019	71,968	$41,064	$177.73	$148.82 - $193.08
Q4 2018	32,668	$15,645	$169.46	$143.41 - $193.71
Q3 2018	33,868	$19,440	$177.57	$157.27 - $191.80
Q2 2018	33,568	$16,062	$152.50	$131.19 - $165.64
Q1 2018	33,068	$13,651	$139.55	$121.70 - $150.67
Q4 2017	32,868	$11,995	$125.15	$116.40 - $135.02
Q3 2017	11,356	$11,877	$108.96	$102.29 - $117.20
Q2 2017	12,156	$11,370	$96.11	$83.71 - $107.06
Q1 2017	12,056	$9,241	$79.00	$69.41 - $85.59
Q4 2016	12,656	$8,026	$73.52	$67.86 - $80.81
Q3 2016	13,384	$9,701	$76.57	$73.23 - $80.79
Q2 2016	14,884	$9,844	$70.37	$65.67 - $73.72
Q1 2016	18,384	$11,050	$61.97	$55.78 - $67.53
Q4 2015	12,784	$6,982	$56.16	$49.67 - $61.84
Q3 2015	13,384	$6,151	$56.64	$50.07 - $62.76
Q2 2015	14,284	$6,921	$55.94	$53.34 - $62.12
Q1 2015	14,084	$7,113	$56.60	$54.07 - $59.79
Q4 2014	14,884	$7,873	$55.69	$49.93 - $59.87
Q3 2014	14,784	$6,828	$49.65	$41.78 - $53.67
Q2 2014	15,784	$6,500	$44.11	$38.50 - $60.14
Q1 2014	51,384	$22,506	$47.10	$41.11 - $51.39
Q4 2013	51,284	$19,697	$42.08	$39.02 - $45.43
Q3 2013	51,984	$19,560	$44.16	$39.67 - $56.58
Q2 2013	16,284	$8,249	$55.09	$51.68 - $57.34