TRANSDIGM GROUP INC

Ticker: TDG CUSIP: 893641100 Class: COM

Beech Hill Advisors, Inc.'s Holding History (CIK: 0001356202)

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

Q4 2016

Shares 1,825 Value ($000) $454 Avg Close $176.01 Range $160.64 - $189.46

Q3 2016

Shares 1,725 Value ($000) $499 Avg Close $175.41 Range $160.79 - $183.97

Q2 2016

Shares 1,761 Value ($000) $464 Avg Close $152.60 Range $135.64 - $167.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2016	1,825	$454	$176.01	$160.64 - $189.46
Q3 2016	1,725	$499	$175.41	$160.79 - $183.97
Q2 2016	1,761	$464	$152.60	$135.64 - $167.49