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SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549
_________________________

FORM 8-K
CURRENT REPORT 

Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
 
Date of Report: December 3, 2009
(Date of earliest event reported)
 
 
PRINCIPAL FINANCIAL GROUP, INC. 
(Exact name of registrant as specified in its charter) 

                                                               Delaware  1-16725                   42-1520346 
                                               (State or other jurisdiction  (Commission file number)               (I.R.S. Employer 
                                                      of incorporation)            Identification Number) 

711 High Street, Des Moines, Iowa 50392 
(Address of principal executive offices)
 
(515) 247-5111
(Registrant’s telephone number, including area code) 

          Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the 
          registrant under any of the following provisions: 
 
          [   ]  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) 
          [   ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) 
          [   ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 
  240.14d-2(b)) 
          [   ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 
  240.13e-4(c)) 
_________________________


Item 2.02      Results of Operations and Financial Condition. 
 
The slide presentation attached hereto as Exhibit 99, and incorporated herein by reference, will be 
presented at Principal Financial Group, Inc.’s Investor Conference on December 3, 2009 and may 
be used by the company in various other presentations to investors. The slide presentation is
furnished and not filed pursuant to instruction B.2 of Form 8-K. 
 
Item 7.01      Regulation FD Disclosure 
 
The slide presentation attached hereto as Exhibit 99, and incorporated herein by reference, will be 
presented at Principal Financial Group, Inc.’s Investor Conference on December 3, 2009 and may 
be used by the company in various other presentations to investors. The slide presentation is 
furnished and not filed pursuant to Instruction B.2 of Form 8-K. 
 
Item 9.01      Financial Statements and Exhibits 
 
Exhibit 99      Slide presentation presented at Principal Financial Group, Inc.’s Investor 
                      Conference on December 3, 2009. The slide presentation is furnished and not 
                      filed pursuant to Instruction B.2 of Form 8-K. 

                                                                                SIGNATURE 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused 
this report to be signed on its behalf by the undersigned thereunto duly authorized. 
 
 
                                                                                PRINCIPAL FINANCIAL GROUP, INC. 
 
 
                                                                                By:       /s/ Tom Graf                                           
                                                                                Name:  Tom Graf 
                                                                                Title:     Senior Vice President – Investor Relations 
 
 
Date: December 3, 2009   


                                                        EXHIBIT INDEX 

EXHIBIT   
NUMBER                                 EXHIBIT 
 
     99       Slide presentation presented at Principal Financial Group, Inc.’s Investor 
                Conference on December 3, 2009