TRANSDIGM GROUP INC

Ticker: TDG CUSIP: 893641100 Class: COM

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

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

Q4 2025

Shares 75,792 Value ($000) $100,792 Avg Close $1310.75 Range $1235.69 - $1367.65

Q3 2025

Shares 76,192 Value ($000) $100,423 Avg Close $1364.80 Range $1243.55 - $1519.36

Q2 2025

Shares 76,292 Value ($000) $116,013 Avg Close $1314.14 Range $1107.45 - $1430.11

Q1 2025

Shares 76,192 Value ($000) $105,396 Avg Close $1247.54 Range $1160.54 - $1316.81

Q4 2024

Shares 76,292 Value ($000) $96,683 Avg Close $1229.53 Range $1150.91 - $1333.02

Q3 2024

Shares 76,292 Value ($000) $108,879 Avg Close $1152.37 Range $1042.46 - $1269.97

Q2 2024

Shares 76,292 Value ($000) $97,471 Avg Close $1136.24 Range $1050.85 - $1213.74

Q1 2024

Shares 76,192 Value ($000) $93,838 Avg Close $997.72 Range $861.47 - $1097.97

Q4 2023

Shares 76,192 Value ($000) $77,076 Avg Close $802.78 Range $685.93 - $902.61

Q3 2023

Shares 76,092 Value ($000) $64,155 Avg Close $749.90 Range $712.93 - $803.50

Q2 2023

Shares 75,392 Value ($000) $67,413 Avg Close $676.05 Range $611.15 - $768.93

Q1 2023

Shares 81,292 Value ($000) $59,916 Avg Close $610.68 Range $533.03 - $659.90

Q4 2022

Shares 92,347 Value ($000) $58,146 Avg Close $503.62 Range $427.08 - $554.24

Q3 2022

Shares 87,692 Value ($000) $46,023 Avg Close $502.76 Range $427.88 - $565.18

Q2 2022

Shares 70,492 Value ($000) $37,831 Avg Close $490.58 Range $415.64 - $563.58

Q1 2022

Shares 65,792 Value ($000) $42,866 Avg Close $534.00 Range $477.93 - $569.10

Q4 2021

Shares 13,176 Value ($000) $8,384 Avg Close $520.38 Range $459.39 - $570.21

Q3 2021

Shares 13,176 Value ($000) $8,229 Avg Close $519.19 Range $482.92 - $550.47

Q2 2021

Shares 13,776 Value ($000) $8,917 Avg Close $521.39 Range $479.18 - $571.85

Q1 2021

Shares 13,676 Value ($000) $8,040 Avg Close $489.77 Range $430.01 - $520.29

Q4 2020

Shares 13,676 Value ($000) $8,463 Avg Close $457.04 Range $377.14 - $517.44

Q3 2020

Shares 13,876 Value ($000) $6,593 Avg Close $390.77 Range $336.62 - $439.84

Q2 2020

Shares 12,876 Value ($000) $5,692 Avg Close $314.55 Range $216.10 - $446.79

Q1 2020

Shares 91,104 Value ($000) $29,171 Avg Close $452.74 Range $166.28 - $559.78

Q4 2019

Shares 91,704 Value ($000) $51,354 Avg Close $431.37 Range $390.88 - $473.78

Q3 2019

Shares 11,904 Value ($000) $6,198 Avg Close $392.06 Range $338.00 - $426.07

Q2 2019

Shares 11,704 Value ($000) $5,662 Avg Close $347.24 Range $325.07 - $371.97

Q1 2019

Shares 14,004 Value ($000) $6,358 Avg Close $301.26 Range $241.12 - $338.24

Q4 2018

Shares 13,904 Value ($000) $4,728 Avg Close $254.69 Range $228.13 - $278.59

Q3 2018

Shares 14,404 Value ($000) $5,363 Avg Close $267.24 Range $250.90 - $280.31

Q2 2018

Shares 14,404 Value ($000) $4,971 Avg Close $243.87 Range $221.45 - $258.04

Q1 2018

Shares 14,304 Value ($000) $4,390 Avg Close $218.67 Range $196.90 - $238.53

Q4 2017

Shares 14,204 Value ($000) $3,901 Avg Close $201.62 Range $189.22 - $211.95

Q3 2017

Shares 14,604 Value ($000) $3,734 Avg Close $189.94 Range $179.71 - $201.53

Q2 2017

Shares 16,104 Value ($000) $4,330 Avg Close $173.41 Range $148.53 - $187.86

Q1 2017

Shares 16,304 Value ($000) $3,589 Avg Close $163.01 Range $139.17 - $177.33

Q4 2016

Shares 16,404 Value ($000) $4,084 Avg Close $176.01 Range $160.64 - $189.46

Q3 2016

Shares 17,500 Value ($000) $5,060 Avg Close $175.41 Range $160.79 - $183.97

Q2 2016

Shares 18,400 Value ($000) $4,852 Avg Close $152.60 Range $135.64 - $167.49

Q2 2013

Shares 76,000 Value ($000) $11,915 Avg Close $70.58 Range $67.23 - $77.43

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	75,792	$100,792	$1310.75	$1235.69 - $1367.65
Q3 2025	76,192	$100,423	$1364.80	$1243.55 - $1519.36
Q2 2025	76,292	$116,013	$1314.14	$1107.45 - $1430.11
Q1 2025	76,192	$105,396	$1247.54	$1160.54 - $1316.81
Q4 2024	76,292	$96,683	$1229.53	$1150.91 - $1333.02
Q3 2024	76,292	$108,879	$1152.37	$1042.46 - $1269.97
Q2 2024	76,292	$97,471	$1136.24	$1050.85 - $1213.74
Q1 2024	76,192	$93,838	$997.72	$861.47 - $1097.97
Q4 2023	76,192	$77,076	$802.78	$685.93 - $902.61
Q3 2023	76,092	$64,155	$749.90	$712.93 - $803.50
Q2 2023	75,392	$67,413	$676.05	$611.15 - $768.93
Q1 2023	81,292	$59,916	$610.68	$533.03 - $659.90
Q4 2022	92,347	$58,146	$503.62	$427.08 - $554.24
Q3 2022	87,692	$46,023	$502.76	$427.88 - $565.18
Q2 2022	70,492	$37,831	$490.58	$415.64 - $563.58
Q1 2022	65,792	$42,866	$534.00	$477.93 - $569.10
Q4 2021	13,176	$8,384	$520.38	$459.39 - $570.21
Q3 2021	13,176	$8,229	$519.19	$482.92 - $550.47
Q2 2021	13,776	$8,917	$521.39	$479.18 - $571.85
Q1 2021	13,676	$8,040	$489.77	$430.01 - $520.29
Q4 2020	13,676	$8,463	$457.04	$377.14 - $517.44
Q3 2020	13,876	$6,593	$390.77	$336.62 - $439.84
Q2 2020	12,876	$5,692	$314.55	$216.10 - $446.79
Q1 2020	91,104	$29,171	$452.74	$166.28 - $559.78
Q4 2019	91,704	$51,354	$431.37	$390.88 - $473.78
Q3 2019	11,904	$6,198	$392.06	$338.00 - $426.07
Q2 2019	11,704	$5,662	$347.24	$325.07 - $371.97
Q1 2019	14,004	$6,358	$301.26	$241.12 - $338.24
Q4 2018	13,904	$4,728	$254.69	$228.13 - $278.59
Q3 2018	14,404	$5,363	$267.24	$250.90 - $280.31
Q2 2018	14,404	$4,971	$243.87	$221.45 - $258.04
Q1 2018	14,304	$4,390	$218.67	$196.90 - $238.53
Q4 2017	14,204	$3,901	$201.62	$189.22 - $211.95
Q3 2017	14,604	$3,734	$189.94	$179.71 - $201.53
Q2 2017	16,104	$4,330	$173.41	$148.53 - $187.86
Q1 2017	16,304	$3,589	$163.01	$139.17 - $177.33
Q4 2016	16,404	$4,084	$176.01	$160.64 - $189.46
Q3 2016	17,500	$5,060	$175.41	$160.79 - $183.97
Q2 2016	18,400	$4,852	$152.60	$135.64 - $167.49
Q2 2013	76,000	$11,915	$70.58	$67.23 - $77.43