
AZN · NYSE
AstraZeneca fell 9.78% over the week, from $172.48 to $155.62. The decline was concentrated on Monday, when the stock dropped to $157.97 on volume of 16.3 million shares, followed by a further fall to $155.62 on Tuesday. The main reported catalyst was news that AstraZeneca and Bristol Myers Squibb were in talks over a potential $400 billion combination, which appears to have heightened concerns about regulatory scrutiny and integration risks. The stock did not materially reverse the Monday selloff. No company financials were supplied for the period, so the move is best attributed to deal-related uncertainty rather than an earnings update.
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