PTC THERAPEUTICS INC

Ticker: PTCT CUSIP: 69366J200 Class: Common Stock

Caprock Group, LLC's Holding History (CIK: 0001610769)

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

Q3 2018

Shares 6,575 Value ($000) $309 Avg Close $41.38 Range $32.13 - $48.85

Q2 2018

Shares 6,575 Value ($000) $222 Avg Close $31.18 Range $24.60 - $52.95

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	6,575	$309	$41.38	$32.13 - $48.85
Q2 2018	6,575	$222	$31.18	$24.60 - $52.95