In a Form 8-K filed with the Securities and Exchange Commission, Principal Financial Group Inc. said its total exposure to subprime mortgages through its asset management company as of Sept. 30 was about $699 million, or 1.1 percent of its invested assets, Forbes reported.

The filing came as a response to investor queries about the Des Moines-based company’s exposure to the subprime market.

The company said it owns about $1.8 billion in whole loan residential mortgages, $7 billion in mortgage-backed securities and $2.8 billion in asset-backed securities.