Omega Healthcare announced on-going questioning by the Department of Justice and clarification on its recent private equity offerings during its fourth quarter conference call Thursday morning.

CEO Taylor Pickett said some of its regional operators have received requests for information from the DOJ concerning Medicare billing. Two of the operators are on Omega’s top 10 operators list.

One analyst, Nick Yulico of UBS, estimated during the call the two operators must represent at least 10 percent of Omega’s revenue.

Pickett denied the potential investigations were material enough to merit inclusion in the annual report. Due by early March, the 10-K won’t recognize them “until there’s any views as to what the potential liability is,” Pickett said and whether it will affect the company’s rental business. He said the company is more concerned with potential money and time any investigations may take from the business.

Over the 2016 calendar year, Omega made investments totaling $1.3 billion. It has cash and revolving credit availability of $1.2 billion available for future investments and capital funds for its existing tenants, Chief Operating Officer Dan Booth said in the earnings call.

Booth also gave context to the five private equity offerings filed with the securities and exchange commission Monday. In November, the company announced a $50 million investment in Second Spring Healthcare Investments partnered with an investment from Lindsay Goldberg LLC. Omega owns 15 percent of health care investment, and Lindsay Goldberg owns the remaining majority.

The company also reported the sale of 38 facilities during the calendar year and releasing of eight others.

The company’s stock price fell 5.56 percent Thursday to $30.76, just one day after beating analyst earnings expectations by more than 31 percent.