44.87
price up icon1.33%   0.59
after-market After Hours: 45.37 0.50 +1.11%
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Why is Ptc Therapeutics Inc (PTCT) Stock down?

We've noticed a 5.92% decline in Ptc Therapeutics Inc (PTCT) stock during the 2024-09-05 trading session. While this could be attributed to normal volatility or various internal and external factors, please be aware that we are actively monitoring the situation, and we'll provide timely updates as soon as possible!
27 Oct, 2023:

Shares of PTC Therapeutics (PTCT) dropped by 22.71% from $23.95 to $18.51 in the trading on Friday, October 27, 2023. The reason why PTCT stock down is due to a change in its regulatory submission plan. Originally, PTC Therapeutics had planned to seek FDA approval in the fourth quarter of 2023. However, the FDA now requires a 26-week nonclinical mouse study before authorization. As a result, PTC Therapeutics has altered its submission pathway from 505(b)(2) to 505(b)(1), which necessitates the collection of additional data. This regulatory change has impacted investor sentiment, leading to the significant drop in PTCT's stock price.

15 Sep, 2023:

European regulators rejected full approval for PTC Therapeutics' Duchenne muscular dystrophy treatment, Translarna, causing a 29.8% drop in PTC stock. The decision came due to insufficient evidence, and PTC plans to seek reexamination from the European Commission.

https://www.investors.com/news/technology/ptc-stock-crashes-after-european-regulators-reject-its-muscular-dystrophy-drug/?src=A00220

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