PTC THERAPEUTICS INC

Ticker: PTCT CUSIP: 69366J200 Class: Common Stock

Atom Investors LP's Holding History (CIK: 0001738902)

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

Q3 2019

Shares 100,979 Value ($000) $3,415 Avg Close $43.52 Range $33.05 - $48.81

Q2 2019

Shares 7,027 Value ($000) $316 Avg Close $39.49 Range $34.51 - $45.00

Q1 2019

Shares 298,451 Value ($000) $11,234 Avg Close $33.58 Range $27.53 - $39.67

Q4 2018

Shares 198,499 Value ($000) $6,812 Avg Close $35.96 Range $28.91 - $48.99

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	100,979	$3,415	$43.52	$33.05 - $48.81
Q2 2019	7,027	$316	$39.49	$34.51 - $45.00
Q1 2019	298,451	$11,234	$33.58	$27.53 - $39.67
Q4 2018	198,499	$6,812	$35.96	$28.91 - $48.99