What exact costs will Aetna incur now that the Justice Department has challenged the merger? What costs will Aetna incur if the merger is ultimately blocked?

Why did Aetna agree to a deal that included a $1 billion break-up fee? When the company agreed to this condition, did Aetna conduct an internal assessment of the risk of a DOJ challenge? When Aetna agreed to pay this fee, was Aetna aware that it would endanger participation in the ACA exchanges?

What steps did Aetna take, prior to July 2016, to mitigate the risk that the Justice Department would challenge or successfully block its proposed acquisition of Humana?

When did Aetna first determine that its participation in the public exchanges would be contingent upon federal government approval of its proposed acquisition of Humana?

When did Aetna first inform investors that its participation in the public exchanges would be contingent upon federal government approval of its proposed acquisition of Humana? What other risks did the company disclose to investors?

What criteria did Aetna use in determining the states from which to withdraw in 2016?

During Aetna’s April 29, 2016, Q1 2016 earnings call, Aetna said that it had a “very good cost structure” in states in which it had experienced growth in its ACA exchange population, including Florida, Georgia, and North Carolina. Why is Aetna withdrawing from states in which it had a “very good cost structure” or where Aetna has performed well in the past?

How many enrollees have contacted Aetna over its decision to withdraw from the ACA exchanges? What materials and resources is Aetna making available to assist consumers in selecting new health insurance coverage?