PTC THERAPEUTICS INC

Ticker: PTCT CUSIP: 69366J200 Class: Common Stock

TOCQUEVILLE ASSET MANAGEMENT L.P.'s Holding History (CIK: 0000883961)

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

Q1 2017
Shares 55,350 Value ($000) $545 Avg Close $12.10 Range $8.12 - $16.50
Q4 2016
Shares 785,975 Value ($000) $8,575 Avg Close $10.49 Range $4.03 - $14.57
Q3 2016
Shares 1,174,730 Value ($000) $16,458 Avg Close $8.13 Range $5.64 - $14.35
Q2 2016
Shares 1,400,643 Value ($000) $9,833 Avg Close $7.33 Range $5.78 - $10.15
Q1 2016
Shares 1,487,998 Value ($000) $9,583 Avg Close $17.36 Range $5.27 - $31.89
Q4 2015
Shares 971,793 Value ($000) $31,486 Avg Close $29.43 Range $22.67 - $35.76
Q3 2015
Shares 755,728 Value ($000) $20,178 Avg Close $42.77 Range $24.63 - $62.15
Q2 2015
Shares 577,378 Value ($000) $27,789 Avg Close $58.34 Range $46.17 - $78.72
Q1 2015
Shares 571,423 Value ($000) $34,771 Avg Close $61.01 Range $46.91 - $77.87
Q4 2014
Shares 603,308 Value ($000) $31,233 Avg Close $44.02 Range $33.02 - $57.50
Q3 2014
Shares 571,300 Value ($000) $25,143 Avg Close $31.28 Range $22.70 - $47.20
Q2 2014
Shares 271,813 Value ($000) $7,105 Avg Close $21.40 Range $14.51 - $28.75
Q1 2014
Shares 74,500 Value ($000) $1,947 Avg Close $26.87 Range $16.21 - $34.65
Q4 2013
Shares 65,050 Value ($000) $1,104 Avg Close $17.58 Range $13.15 - $22.42
Q3 2013
Shares 48,850 Value ($000) $1,048 Avg Close $17.38 Range $13.88 - $24.38