KVB K V Pharma CL B

Among the companies with shares expected to actively trade in Monday's session are Steel Dynamics Inc. (STLD) and K-V Pharmaceuticals Co. (KVA, KVB)

Steel Dynamics forecast second-quarter earnings below analyst expectations, pointing to a decline in sheet-steel prices. Shares slipped 3.2% to $10.67 after hours.

The Food and Drug Administration said its own analysis of compounded versions of the active ingredient in K-V Pharmaceuticals's premature-birth prevention Makena drug did not identify any major safety problems, but reiterated that approved drugs are generally safer and more effective than compounded products. K-V class A shares surged 16% to $1.22 after hours.

 
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Drug maker Merck & Co. (MRK) said a U.S. district court ruled against it in a patent-infringement suit involving Apotex Inc.

Health-benefits provider WellPoint Inc. (WLP) said it will pay $90 million to resolve a lawsuit related to its initial public offering and lowered its full-year earnings projections.

 
   -Write to Nathalie Tadena at nathalie.tadena@dowjones.com