TRANSDIGM GROUP INC

Ticker: TDG CUSIP: 893641100 Class: COM

BROWN BROTHERS HARRIMAN & CO's Holding History (CIK: 0000014661)

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

Q4 2025

Shares 5,191 Value ($000) $6,903 Avg Close $1310.75 Range $1235.69 - $1367.65

Q3 2025

Shares 5,020 Value ($000) $6,616 Avg Close $1364.80 Range $1243.55 - $1519.36

Q2 2025

Shares 5,038 Value ($000) $7,661 Avg Close $1314.14 Range $1107.45 - $1430.11

Q1 2025

Shares 4,983 Value ($000) $6,893 Avg Close $1247.54 Range $1160.54 - $1316.81

Q4 2024

Shares 4,963 Value ($000) $6,290 Avg Close $1229.53 Range $1150.91 - $1333.02

Q3 2024

Shares 1,891 Value ($000) $2,699 Avg Close $1152.37 Range $1042.46 - $1269.97

Q2 2024

Shares 1,905 Value ($000) $2,434 Avg Close $1136.24 Range $1050.85 - $1213.74

Q1 2024

Shares 1,980 Value ($000) $2,439 Avg Close $997.72 Range $861.47 - $1097.97

Q4 2023

Shares 53,047 Value ($000) $53,662 Avg Close $802.78 Range $685.93 - $902.61

Q3 2023

Shares 118,007 Value ($000) $99,495 Avg Close $749.90 Range $712.93 - $803.50

Q2 2023

Shares 118,082 Value ($000) $105,585 Avg Close $676.05 Range $611.15 - $768.93

Q1 2023

Shares 118,083 Value ($000) $87,033 Avg Close $610.68 Range $533.03 - $659.90

Q4 2022

Shares 117,942 Value ($000) $74,262 Avg Close $503.62 Range $427.08 - $554.24

Q3 2022

Shares 103,792 Value ($000) $54,472 Avg Close $502.76 Range $427.88 - $565.18

Q2 2022

Shares 103,836 Value ($000) $55,726 Avg Close $490.58 Range $415.64 - $563.58

Q1 2022

Shares 103,837 Value ($000) $67,654 Avg Close $534.00 Range $477.93 - $569.10

Q4 2021

Shares 103,831 Value ($000) $66,066 Avg Close $520.38 Range $459.39 - $570.21

Q3 2021

Shares 103,902 Value ($000) $64,894 Avg Close $519.19 Range $482.92 - $550.47

Q2 2021

Shares 103,926 Value ($000) $67,270 Avg Close $521.39 Range $479.18 - $571.85

Q1 2021

Shares 104,142 Value ($000) $61,227 Avg Close $489.77 Range $430.01 - $520.29

Q4 2020

Shares 116,063 Value ($000) $71,826 Avg Close $457.04 Range $377.14 - $517.44

Q3 2020

Shares 116,063 Value ($000) $55,144 Avg Close $390.77 Range $336.62 - $439.84

Q2 2020

Shares 117,971 Value ($000) $52,149 Avg Close $314.55 Range $216.10 - $446.79

Q1 2020

Shares 170,255 Value ($000) $54,514 Avg Close $452.74 Range $166.28 - $559.78

Q4 2019

Shares 194,347 Value ($000) $108,834 Avg Close $431.37 Range $390.88 - $473.78

Q3 2019

Shares 185,223 Value ($000) $96,440 Avg Close $392.06 Range $338.00 - $426.07

Q2 2019

Shares 224,047 Value ($000) $108,394 Avg Close $347.24 Range $325.07 - $371.97

Q1 2019

Shares 336,174 Value ($000) $152,620 Avg Close $301.26 Range $241.12 - $338.24

Q4 2018

Shares 363,774 Value ($000) $123,705 Avg Close $254.69 Range $228.13 - $278.59

Q3 2018

Shares 363,774 Value ($000) $135,433 Avg Close $267.24 Range $250.90 - $280.31

Q2 2018

Shares 363,774 Value ($000) $125,553 Avg Close $243.87 Range $221.45 - $258.04

Q1 2018

Shares 398,774 Value ($000) $122,400 Avg Close $218.67 Range $196.90 - $238.53

Q4 2017

Shares 541,568 Value ($000) $148,725 Avg Close $201.62 Range $189.22 - $211.95

Q3 2017

Shares 541,557 Value ($000) $138,449 Avg Close $189.94 Range $179.71 - $201.53

Q2 2017

Shares 541,557 Value ($000) $145,608 Avg Close $173.41 Range $148.53 - $187.86

Q1 2017

Shares 541,557 Value ($000) $119,229 Avg Close $163.01 Range $139.17 - $177.33

Q4 2016

Shares 541,557 Value ($000) $134,826 Avg Close $176.01 Range $160.64 - $189.46

Q3 2016

Shares 541,557 Value ($000) $156,575 Avg Close $175.41 Range $160.79 - $183.97

Q2 2016

Shares 609,332 Value ($000) $160,675 Avg Close $152.60 Range $135.64 - $167.49

Q1 2016

Shares 624,788 Value ($000) $137,666 Avg Close $136.47 Range $112.97 - $145.25

Q4 2015

Shares 623,488 Value ($000) $142,436 Avg Close $140.66 Range $131.38 - $149.06

Q3 2015

Shares 623,488 Value ($000) $132,435 Avg Close $143.01 Range $130.21 - $153.05

Q2 2015

Shares 623,488 Value ($000) $140,079 Avg Close $140.09 Range $132.07 - $145.10

Q1 2015

Shares 623,576 Value ($000) $136,389 Avg Close $131.65 Range $121.43 - $141.37

Q4 2014

Shares 623,576 Value ($000) $122,439 Avg Close $117.83 Range $104.12 - $125.64

Q3 2014

Shares 623,506 Value ($000) $114,931 Avg Close $111.57 Range $102.95 - $120.15

Q2 2014

Shares 623,488 Value ($000) $104,285 Avg Close $101.01 Range $93.79 - $108.05

Q1 2014

Shares 623,620 Value ($000) $115,494 Avg Close $95.29 Range $86.57 - $102.25

Q4 2013

Shares 623,488 Value ($000) $99,527 Avg Close $81.23 Range $74.58 - $88.80

Q3 2013

Shares 623,488 Value ($000) $86,478 Avg Close $76.29 Range $70.62 - $81.77

Q2 2013

Shares 623,488 Value ($000) $97,744 Avg Close $70.58 Range $67.23 - $77.43

Q1 2013

Shares 503,638 Value ($000) $77,016 Avg Close $66.95 Range $62.56 - $72.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,191	$6,903	$1310.75	$1235.69 - $1367.65
Q3 2025	5,020	$6,616	$1364.80	$1243.55 - $1519.36
Q2 2025	5,038	$7,661	$1314.14	$1107.45 - $1430.11
Q1 2025	4,983	$6,893	$1247.54	$1160.54 - $1316.81
Q4 2024	4,963	$6,290	$1229.53	$1150.91 - $1333.02
Q3 2024	1,891	$2,699	$1152.37	$1042.46 - $1269.97
Q2 2024	1,905	$2,434	$1136.24	$1050.85 - $1213.74
Q1 2024	1,980	$2,439	$997.72	$861.47 - $1097.97
Q4 2023	53,047	$53,662	$802.78	$685.93 - $902.61
Q3 2023	118,007	$99,495	$749.90	$712.93 - $803.50
Q2 2023	118,082	$105,585	$676.05	$611.15 - $768.93
Q1 2023	118,083	$87,033	$610.68	$533.03 - $659.90
Q4 2022	117,942	$74,262	$503.62	$427.08 - $554.24
Q3 2022	103,792	$54,472	$502.76	$427.88 - $565.18
Q2 2022	103,836	$55,726	$490.58	$415.64 - $563.58
Q1 2022	103,837	$67,654	$534.00	$477.93 - $569.10
Q4 2021	103,831	$66,066	$520.38	$459.39 - $570.21
Q3 2021	103,902	$64,894	$519.19	$482.92 - $550.47
Q2 2021	103,926	$67,270	$521.39	$479.18 - $571.85
Q1 2021	104,142	$61,227	$489.77	$430.01 - $520.29
Q4 2020	116,063	$71,826	$457.04	$377.14 - $517.44
Q3 2020	116,063	$55,144	$390.77	$336.62 - $439.84
Q2 2020	117,971	$52,149	$314.55	$216.10 - $446.79
Q1 2020	170,255	$54,514	$452.74	$166.28 - $559.78
Q4 2019	194,347	$108,834	$431.37	$390.88 - $473.78
Q3 2019	185,223	$96,440	$392.06	$338.00 - $426.07
Q2 2019	224,047	$108,394	$347.24	$325.07 - $371.97
Q1 2019	336,174	$152,620	$301.26	$241.12 - $338.24
Q4 2018	363,774	$123,705	$254.69	$228.13 - $278.59
Q3 2018	363,774	$135,433	$267.24	$250.90 - $280.31
Q2 2018	363,774	$125,553	$243.87	$221.45 - $258.04
Q1 2018	398,774	$122,400	$218.67	$196.90 - $238.53
Q4 2017	541,568	$148,725	$201.62	$189.22 - $211.95
Q3 2017	541,557	$138,449	$189.94	$179.71 - $201.53
Q2 2017	541,557	$145,608	$173.41	$148.53 - $187.86
Q1 2017	541,557	$119,229	$163.01	$139.17 - $177.33
Q4 2016	541,557	$134,826	$176.01	$160.64 - $189.46
Q3 2016	541,557	$156,575	$175.41	$160.79 - $183.97
Q2 2016	609,332	$160,675	$152.60	$135.64 - $167.49
Q1 2016	624,788	$137,666	$136.47	$112.97 - $145.25
Q4 2015	623,488	$142,436	$140.66	$131.38 - $149.06
Q3 2015	623,488	$132,435	$143.01	$130.21 - $153.05
Q2 2015	623,488	$140,079	$140.09	$132.07 - $145.10
Q1 2015	623,576	$136,389	$131.65	$121.43 - $141.37
Q4 2014	623,576	$122,439	$117.83	$104.12 - $125.64
Q3 2014	623,506	$114,931	$111.57	$102.95 - $120.15
Q2 2014	623,488	$104,285	$101.01	$93.79 - $108.05
Q1 2014	623,620	$115,494	$95.29	$86.57 - $102.25
Q4 2013	623,488	$99,527	$81.23	$74.58 - $88.80
Q3 2013	623,488	$86,478	$76.29	$70.62 - $81.77
Q2 2013	623,488	$97,744	$70.58	$67.23 - $77.43
Q1 2013	503,638	$77,016	$66.95	$62.56 - $72.02