TRANSDIGM GROUP INC

Ticker: TDG CUSIP: 893641100 Class: COM

ONTARIO TEACHERS PENSION PLAN BOARD's Holding History (CIK: 0000937567)

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

Q4 2019

Shares 1,197 Value ($000) $670 Avg Close $431.37 Range $390.88 - $473.78

Q3 2019

Shares 8,197 Value ($000) $4,268 Avg Close $392.06 Range $338.00 - $426.07

Q2 2019

Shares 9,897 Value ($000) $4,788 Avg Close $347.24 Range $325.07 - $371.97

Q1 2019

Shares 3,112 Value ($000) $1,413 Avg Close $301.26 Range $241.12 - $338.24

Q4 2018

Shares 1,409 Value ($000) $479 Avg Close $254.69 Range $228.13 - $278.59

Q3 2018

Shares 2,077 Value ($000) $773 Avg Close $267.24 Range $250.90 - $280.31

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	1,197	$670	$431.37	$390.88 - $473.78
Q3 2019	8,197	$4,268	$392.06	$338.00 - $426.07
Q2 2019	9,897	$4,788	$347.24	$325.07 - $371.97
Q1 2019	3,112	$1,413	$301.26	$241.12 - $338.24
Q4 2018	1,409	$479	$254.69	$228.13 - $278.59
Q3 2018	2,077	$773	$267.24	$250.90 - $280.31