TRANSDIGM GROUP INC

Ticker: TDG CUSIP: 893641100 Class: COM

Riverstone Advisors, LLC's Holding History (CIK: 0001763404)

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

Q4 2019

Shares 12,489 Value ($000) $6,994 Avg Close $431.37 Range $390.88 - $473.78

Q3 2019

Shares 12,142 Value ($000) $6,322 Avg Close $392.06 Range $338.00 - $426.07

Q2 2019

Shares 8,237 Value ($000) $3,985 Avg Close $347.24 Range $325.07 - $371.97

Q1 2019

Shares 7,475 Value ($000) $3,394 Avg Close $301.26 Range $241.12 - $338.24

Q4 2018

Shares 7,142 Value ($000) $2,429 Avg Close $254.69 Range $228.13 - $278.59

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	12,489	$6,994	$431.37	$390.88 - $473.78
Q3 2019	12,142	$6,322	$392.06	$338.00 - $426.07
Q2 2019	8,237	$3,985	$347.24	$325.07 - $371.97
Q1 2019	7,475	$3,394	$301.26	$241.12 - $338.24
Q4 2018	7,142	$2,429	$254.69	$228.13 - $278.59