PTC THERAPEUTICS INC

Ticker: PTCT CUSIP: 69366J200 Class: Common Stock

KINGDON CAPITAL MANAGEMENT, L.L.C.'s Holding History (CIK: 0001000097)

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

Q2 2020

Shares 251,734 Value ($000) $12,773 Avg Close $49.14 Range $40.03 - $55.00

Q1 2020

Shares 251,734 Value ($000) $11,230 Avg Close $50.35 Range $30.79 - $59.89

Q4 2019

Shares 203,711 Value ($000) $9,784 Avg Close $42.49 Range $31.49 - $50.96

Q3 2019

Shares 183,119 Value ($000) $6,193 Avg Close $43.52 Range $33.05 - $48.81

Q2 2019

Shares 137,219 Value ($000) $6,175 Avg Close $39.49 Range $34.51 - $45.00

Q1 2017

Shares 285,284 Value ($000) $2,807 Avg Close $12.10 Range $8.12 - $16.50

Q4 2016

Shares 605,000 Value ($000) $6,601 Avg Close $10.49 Range $4.03 - $14.57

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2020	251,734	$12,773	$49.14	$40.03 - $55.00
Q1 2020	251,734	$11,230	$50.35	$30.79 - $59.89
Q4 2019	203,711	$9,784	$42.49	$31.49 - $50.96
Q3 2019	183,119	$6,193	$43.52	$33.05 - $48.81
Q2 2019	137,219	$6,175	$39.49	$34.51 - $45.00
Q1 2017	285,284	$2,807	$12.10	$8.12 - $16.50
Q4 2016	605,000	$6,601	$10.49	$4.03 - $14.57