TRANSDIGM GROUP INC

Ticker: TDG CUSIP: 893641100 Class: COM

ThornTree Capital Partners LP's Holding History (CIK: 0001688511)

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

Q4 2018

Shares 47,100 Value ($000) $16,017 Avg Close $254.69 Range $228.13 - $278.59

Q3 2018

Shares 100,200 Value ($000) $37,304 Avg Close $267.24 Range $250.90 - $280.31

Q2 2018

Shares 78,700 Value ($000) $27,163 Avg Close $243.87 Range $221.45 - $258.04

Q1 2018

Shares 73,000 Value ($000) $22,407 Avg Close $218.67 Range $196.90 - $238.53

Q4 2017

Shares 58,700 Value ($000) $16,120 Avg Close $201.62 Range $189.22 - $211.95

Q3 2017

Shares 44,900 Value ($000) $11,479 Avg Close $189.94 Range $179.71 - $201.53

Q2 2017

Shares 44,900 Value ($000) $12,072 Avg Close $173.41 Range $148.53 - $187.86

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	47,100	$16,017	$254.69	$228.13 - $278.59
Q3 2018	100,200	$37,304	$267.24	$250.90 - $280.31
Q2 2018	78,700	$27,163	$243.87	$221.45 - $258.04
Q1 2018	73,000	$22,407	$218.67	$196.90 - $238.53
Q4 2017	58,700	$16,120	$201.62	$189.22 - $211.95
Q3 2017	44,900	$11,479	$189.94	$179.71 - $201.53
Q2 2017	44,900	$12,072	$173.41	$148.53 - $187.86