Health Care

Shares of some top managed care companies are down at 1 p.m.: Aetna fell $1.69 or 1.9 percent, to $89.35.

Shares of some top managed care companies were down at the close of trading: Aetna fell $1.35 or 1.5 percent, to $91.04.

Irish drugmaker Shire PLC said Sunday it will pay $5.2 billion to acquire NPS Pharmaceuticals Inc., which specializes in drugs for rare conditions.

A look at the 10 biggest percentage decliners on Nasdaq at the close of trading: Conatus Pharma fell 40.1 percent to $6.19.

Shares of some top health care equipment companies were mixed at the close of trading: Becton, Dickinson & Co. fell $1.73 or 1.2 percent, to $144.63.

Shares of some top medical devices companies were mixed at the close of trading: Allergan fell $1.63 or .8 percent, to $215.40.

Shares of some top pharmaceuticals companies were mixed at the close of trading: Baxter International Inc. fell $.92 or 1.3 percent, to $72.38.

Shares of some top health care equipment companies are down at 10 a.m.: Becton, Dickinson & Co. fell $1.07 or .7 percent, to $145.30.

Shares of some top medical devices companies are mixed at 10 a.m.: Allergan fell $.29 or .1 percent, to $216.74.

Shares of some top pharmaceuticals companies are mixed at 10 a.m.: Baxter International Inc. fell $.61 or .8 percent, to $72.69.

Shares of some top managed care companies are down at 1 p.m.: Aetna fell $1.24 or 1.3 percent, to $91.15.

Shares of some top pharmaceuticals companies are mixed at 1 p.m.: Baxter International Inc. fell $.92 or 1.3 percent, to $72.38.

Shares of some top health care equipment companies are down at 1 p.m.: Becton, Dickinson & Co. fell $1.74 or 1.2 percent, to $144.62.

Shares of some top managed care companies are down at 10 a.m.: Aetna fell $.80 or .9 percent, to $91.59.

Shares of some top biotechnology companies are mixed at 10 a.m.: Amgen Inc. fell $.37 or .2 percent, to $157.30.

Shares of some top managed care companies were up at the close of trading: Aetna rose $2.90 or 3.2 percent, to $92.39.

Shares of some top health care equipment companies are up at 1 p.m.: Becton, Dickinson & Co. rose $2.20 or 1.5 percent, to $145.94.

Shares of some top pharmaceuticals companies are up at 1 p.m.: Baxter International Inc. rose $1.63 or 2.3 percent, to $73.08.

Shares of some top medical devices companies are up at 1 p.m.: Allergan rose $2.00 or .9 percent, to $216.11.

Shares of some top medical devices companies were up at the close of trading: Allergan rose $2.92 or 1.4 percent, to $217.03.