PTC THERAPEUTICS INC

Ticker: PTCT CUSIP: 69366J200 Class: Common Stock

Paloma Partners Management Co's Holding History (CIK: 0001103882)

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

Q1 2018

Shares 14,892 Value ($000) $403 Avg Close $25.34 Range $16.38 - $33.22

Q2 2015

Shares 9,706 Value ($000) $467 Avg Close $58.34 Range $46.17 - $78.72

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	14,892	$403	$25.34	$16.38 - $33.22
Q2 2015	9,706	$467	$58.34	$46.17 - $78.72