PTC THERAPEUTICS INC

Ticker: PTCT CUSIP: 69366J200 Class: Common Stock

Summit Trail Advisors, LLC's Holding History (CIK: 0001698478)

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

Q2 2018

Shares 550 Value ($000) $19 Avg Close $31.18 Range $24.60 - $52.95

Q4 2017

Shares 630 Value ($000) $13 Avg Close $16.93 Range $14.87 - $21.58

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	550	$19	$31.18	$24.60 - $52.95
Q4 2017	630	$13	$16.93	$14.87 - $21.58