PTC THERAPEUTICS INC

Ticker: PTCT CUSIP: 69366J200 Class: Common Stock

TANG CAPITAL MANAGEMENT LLC's Holding History (CIK: 0001232621)

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

Q4 2025
Shares 1,500,000 Value ($000) $113,940 Avg Close $72.67 Range $60.80 - $87.50
Q3 2025
Shares 1,500,000 Value ($000) $92,055 Avg Close $52.09 Range $43.17 - $63.19
Q2 2025
Shares 1,100,000 Value ($000) $53,724 Avg Close $47.47 Range $35.95 - $52.98
Q1 2025
Shares 1,000,000 Value ($000) $50,960 Avg Close $49.90 Range $41.66 - $58.38
Q4 2024
Shares 700,000 Value ($000) $31,598 Avg Close $42.80 Range $34.57 - $54.16
Q3 2024
Shares 700,000 Value ($000) $25,970 Avg Close $33.48 Range $29.02 - $38.62
Q2 2024
Shares 700,000 Value ($000) $21,406 Avg Close $32.39 Range $24.00 - $40.69
Q1 2024
Shares 700,000 Value ($000) $20,363 Avg Close $28.01 Range $23.58 - $32.91
Q4 2023
Shares 900,000 Value ($000) $24,804 Avg Close $22.87 Range $17.53 - $30.11