The key facts about ad in the context of Legend Biotech’s financial move are as follows. Legend Biotech has filed an ADS offering worth $225 million. This move led to a decline in the company’s shares, with an 8% drop in value. The exact timing and details of the ADS offering are not specified in the provided evidence. The evidence does not provide information about the current status of the ADS offering, its expected impact on the company’s future, or the reasons behind the decline in shares. The source does not mention any specific details about the ADS offering, such as the number of ADS being issued, the price per ADS, or the expected use of the funds raised.