Principal Government & High Quality Bond Fund R-3 Class NMFQS:PRCMX

Under normal circumstances, the fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in bonds issued by the U.S. government, its agencies, or instrumentalities or bonds that are rated, at the time of purchase, AAA by S&P Global Ratings (“S&P Global”) or Aaa by Moody’s Investors Service, Inc. (“Moody’s”).