SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549
                                ----------------

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934

                               (Amendment No. 1)1

                           Coventry Health Care, Inc.
                                (Name of Issuer)

                     Common Stock, par value $.01 per share
                         (Title of Class of Securities)

                                    222862104
                                 (CUSIP Number)

                               Karen E. Shaff,Esq.
                        Principal Mutual Holding Company
                                 711 High Street
                             Des Moines, Iowa 50392
                                  (515)247-6139
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                 with a copy to:

                              John W. Blouch, Esq.
                              Jones & Blouch L.L.P.
                       1025 Thomas Jefferson Street, N.W.
                                   Suite 410E
                              Washington, DC 20007
                                  (202)223-3500

                                September 8, 2000
             (Date of Event Which Requires Filing of This Statement)

     If the filing  person has  previously  filed a statement on Schedule 13G to
report the  acquisition  that is the subject of this Schedule 13D, and is filing
this schedule because of Rule 3d-1(c), 13d-1(f) or 13d-1(g), check the following
box [_].

     Note.  Schedules  filed in paper format shall include a signed original and
five copies of the schedule, including all exhibits. See Rule 13d-7(b) for other
parties to whom copies are to be sent.

/1/ The  remainder  of this  cover  page  shall be  filled  out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter disclosures provided in a prior cover page.

     The  information  required on the remainder of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 or otherwise  subject to the  liabilities of that section of the Act
but shall be subject to all other provisions of the Act however, see the Notes).


                                  SCHEDULE 13D

CUSIP No. 222862104
- -------------------

     1    NAME OF REPORTING PERSON
               Principal Mutual Holding Company

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP              (a) [x]
                                                                        (b) [_]

     3    SEC USE ONLY


     4    SOURCE OF FUNDS

               OO

     5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(D) OR 2(E)                                                [_]

     6    CITIZENSHIP OR PLACE OF ORGANIZATION

               Iowa

    NUMBER OF      7    SOLE VOTING POWER
     SHARES                  0
  BENEFICIALLY
    OWNED BY       8    SHARED VOTING POWER
      EACH                   15,117,395 (See Item 5)
    REPORTING
     PERSON        9    SOLE DISPOSITIVE POWER
      WITH                   0

                  10    SHARED DISPOSITIVE POWER
                             15,117,395 (See Item 5)

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

               15,117,395  (See Item 5)

    12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
          SHARES                                                            [_]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

               25.5%

    14    TYPE OF REPORTING PERSON

               HC


                                  SCHEDULE 13D

CUSIP No. 222862104
- -------------------

     1    NAME OF REPORTING PERSON
               Principal Financial Group, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP              (a) [x]
                                                                        (b) [_]

     3    SEC USE ONLY


     4    SOURCE OF FUNDS

               OO

     5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(D) OR 2(E)                                                [_]

     6    CITIZENSHIP OR PLACE OF ORGANIZATION

               Iowa

    NUMBER OF      7    SOLE VOTING POWER
     SHARES                  0
  BENEFICIALLY
    OWNED BY       8    SHARED VOTING POWER
      EACH                   15,117,395 (See Item 5)
    REPORTING
     PERSON        9    SOLE DISPOSITIVE POWER
      WITH                   0

                  10    SHARED DISPOSITIVE POWER
                             15,117,395 (See Item 5)

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

               15,117,395  (See Item 5)

    12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
          SHARES                                                            [_]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

               25.5%

    14    TYPE OF REPORTING PERSON

               HC


                                  SCHEDULE 13D

CUSIP No. 222862104
- -------------------

     1    NAME OF REPORTING PERSON
               Principal Financial Services, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP              (a) [x]
                                                                        (b) [_]

     3    SEC USE ONLY


     4    SOURCE OF FUNDS

               OO

     5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(D) OR 2(E)                                                [_]

     6    CITIZENSHIP OR PLACE OF ORGANIZATION

               Iowa

    NUMBER OF      7    SOLE VOTING POWER
     SHARES                  0
  BENEFICIALLY
    OWNED BY       8    SHARED VOTING POWER
      EACH                   15,117,395 (See Item 5)
    REPORTING
     PERSON        9    SOLE DISPOSITIVE POWER
      WITH                   0

                  10    SHARED DISPOSITIVE POWER
                             15,117,395 (See Item 5)

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

               15,117,395  (See Item 5)

    12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
          SHARES                                                            [_]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

               25.5%

    14    TYPE OF REPORTING PERSON

               HC


                                  SCHEDULE 13D

CUSIP No. 222862104
- -------------------

     1    NAME OF REPORTING PERSON
               Principal Life Insurance Company

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP              (a) [x]
                                                                        (b) [_]

     3    SEC USE ONLY


     4    SOURCE OF FUNDS

               OO

     5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(D) OR 2(E)                                                [_]

     6    CITIZENSHIP OR PLACE OF ORGANIZATION

               Iowa

    NUMBER OF      7    SOLE VOTING POWER
     SHARES                  0
  BENEFICIALLY
    OWNED BY       8    SHARED VOTING POWER
      EACH                   15,117,395 (See Item 5)
    REPORTING
     PERSON        9    SOLE DISPOSITIVE POWER
      WITH                   0

                  10    SHARED DISPOSITIVE POWER
                             15,117,395 (See Item 5)

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

               15,117,395  (See Item 5)

    12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
          SHARES                                                            [_]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

               25.5%

    14    TYPE OF REPORTING PERSON

               IC


                                  SCHEDULE 13D

CUSIP No. 222862104
- -------------------

     1    NAME OF REPORTING PERSON
               Principal Holding Company

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP              (a) [x]
                                                                        (b) [_]

     3    SEC USE ONLY


     4    SOURCE OF FUNDS

               OO

     5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(D) OR 2(E)                                                [_]

     6    CITIZENSHIP OR PLACE OF ORGANIZATION

               Iowa

    NUMBER OF      7    SOLE VOTING POWER
     SHARES                  0
  BENEFICIALLY
    OWNED BY       8    SHARED VOTING POWER
      EACH                   15,117,395 (See Item 5)
    REPORTING
     PERSON        9    SOLE DISPOSITIVE POWER
      WITH                   0

                  10    SHARED DISPOSITIVE POWER
                             15,117,395 (See Item 5)

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

               15,117,395  (See Item 5)

    12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
          SHARES                                                            [_]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

               25.5%

    14    TYPE OF REPORTING PERSON

               HC

                                  SCHEDULE 13D

CUSIP No. 222862104
- -------------------

     1    NAME OF REPORTING PERSON
               Principal Health Care, Inc.

     2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP              (a) [x]
                                                                        (b) [_]

     3    SEC USE ONLY


     4    SOURCE OF FUNDS

               OO

     5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(D) OR 2(E)                                                [_]

     6    CITIZENSHIP OR PLACE OF ORGANIZATION

               Iowa

    NUMBER OF      7    SOLE VOTING POWER
     SHARES                  0
  BENEFICIALLY
    OWNED BY       8    SHARED VOTING POWER
      EACH                   15,103,487 (See Item 5)
    REPORTING
     PERSON        9    SOLE DISPOSITIVE POWER
      WITH                   0

                  10    SHARED DISPOSITIVE POWER
                             15,103,487 (See Item 5)

    11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

               15,103,487  (See Item 5)

    12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
          SHARES                                                            [_]

    13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

               25.5%

    14    TYPE OF REPORTING PERSON

               CO


         This  Amendment  No. 1 amends the  Schedule 13D filed on April 13, 1998
(as amended,  the "Schedule 13D") on behalf of Principal Life Insurance  Company
(formerly,  Principal  Mutual Life  Insurance),  Principal  Holding  Company and
Principal Health Care,  Inc.,  relating to the common stock, par value $0.01 per
share, of Coventry Health Care,  Inc., a Delaware  corporation  ("CHC").  Unless
otherwise  indicated  herein,  each capitalized term used but not defined herein
shall have the meaning assigned to such term in the Schedule 13D.

         Item 2 is amended to read as follows:

Item 2.  Identity and Background.
- ------   ------------------------

         This statement is being filed by: (i) Principal  Mutual Holding Company
("PMHC"),   (ii)  Principal  Financial  Group,  Inc.  ("PFG"),  (iii)  Principal
Financial Services, Inc. ("PFS"), (iv)Principal Life Insurance Company, formerly
Principal Mutual Life Insurance  Company ("PLIC" or  "PM"),(v)Principal  Holding
Company ("PH"), and (vi)Principal Health Care, Inc.("PHC").

         After the initial filing of the Schedule 13D, PLIC  reorganized  from a
mutual  life  insurance  company to a stock life  insurance  company and in that
connection changed its name and became an indirect,  wholly-owned  subsidiary of
PMHC, a mutual  insurance  holding  company  which is an Iowa  corporation.  The
intermediate  holding  companies  are PFG and PFS, both Iowa  corporations.  The
address of the principal  business and principal office of each of PMHC, PFG and
PFS is 711 High Street, Des Moines, Iowa 50392.

         PLIC is a stock insurance company organized under the laws of the State
of Iowa.  The present  principal  business  activity of PLIC is the provision of
products  and  services  for  businesses,   groups  and  individuals   including
individual insurance,  pension plans and group/employee benefits. The address of
its principal business and principal office is 711 High Street, Des Moines, Iowa
50392.

         PH is a corporation  incorporated  under the laws of the State of Iowa.
It is a wholly- owned subsidiary of PM. PH is a holding company for the non-life
insurance  subsidiaries  of PM.  The  address  of  its  principal  business  and
principal office is 711 High Street, Des Moines, Iowa 50392.

         PHC is a corporation  incorporated under the laws of the State of Iowa.
It is a  direct  wholly-owned  subsidiary  of PH  and an  indirect  wholly-owned
subsidiary  of  PLIC.   PHC's   principal   business  is  the   development  and
administration  of  managed  care   arrangements  such  as  preferred   provider
organizations  and  health  maintenance  organizations.  The  address  of  PHC's
principal  business and principal  office is 711 High Street,  Des Moines,  Iowa
50392.

         By virtue of their  ownership and control of PHC, PMHC,  PFG, PFS, PLIC
and PH have the ultimate voting and dispositive power with respect to the shares
of CHC Common Stock held by PHC and may be deemed indirect  beneficial owners of
all the shares of CHC  Common  Stock  owned by PHC  within  the  meaning of Rule
13d-3(a) under the Act.

         Each of PMHC,  PFG, PFS,  PLIC, PH and PHC is  hereinafter  referred to
individually as a "Reporting Person" and collectively as "Reporting Persons." As
discussed below, the Reporting Persons collectively may be deemed to be a group,
within the meaning of Rule  13d-5(b)(1)  under the  Securities  Exchange  Act of
1934, as amended (the "Act"), beneficially owning, in the aggregate,  15,117,395
shares of CHC Common Stock or approximately  25.5% of the outstanding  shares of
CHC Common Stock within the meaning of Rule 13d-3(a) of the Act.

         Attached as Schedule B hereto and incorporated by reference herein is a
list of all Directors  and Executive  Officers of each  Reporting  Person.  Such
Schedule  B also  sets  forth  the  principal  business  address  and  principal
occupation or employment of each person listed thereon.

         All the Directors and Executive  Officers of the Reporting  Persons are
United States citizens, except as otherwise indicated on Schedule B.

         During  the last five  years,  except as set forth  below,  none of the
Reporting  Persons,  or the  Directors  or Executive  Officers of the  Reporting
Persons,  has  been  convicted  in  a  criminal  proceeding  (excluding  traffic
violations or similar misdemeanors).

         During  the last five  years,  except as set forth  below,  none of the
Reporting  Persons,  or the  Directors  or Executive  Officers of the  Reporting
Persons,  has been a party to a civil proceeding of a judicial or administrative
body of  competent  jurisdiction  and as a result of such  proceeding  was or is
subject to a judgment,  decree or final order enjoining future violations of, or
prohibiting  or mandating  activities  subject to, or finding any violation with
respect to, federal or state securities law.


         Item 5 is amended to read as follows:

Item 5.  Interest in Securities of the Issuer.
- ------   -------------------------------------
         (a) - (b)As of the date hereof, PHC beneficially owns 15,103,487 shares
of CHC Common Stock.

         In addition,  as of the date hereof,  Invista Capital  Management,  LLC
("Invista"),   a  direct   wholly-owned   subsidiary  of  PH,  and  an  indirect
wholly-owned  subsidiary of PLIC, may be deemed to be the beneficial owner of an
additional  13,908  shares  of  CHC  Common  Stock.  Invista  is  a  corporation
incorporated under the laws of the state of Iowa. The present principal business
activity of Invista is an investment adviser registered under Section 203 of the
Investment Advisers Act of 1940. The address of Invista's principal business and
principal office is 699 Walnut, 1800 Hub Tower, Des Moines, Iowa 50309. Invista,
using funds provided by holders of certain investment accounts for which Invista
acts as  investment  adviser,  acquires  from time to time  shares of CHC Common
Stock for those accounts.  Invista has voting and dispositive power with respect
to the  shares  held by the  accounts.  Shares  are  acquired  and  held for the
accounts for investment purposes only.

         PMHC,  PFG, PFS, PLIC and PH, by virtue of their  ownership and control
of PHC and  Invista,  may be deemed to share the power to vote or dispose of, or
direct the voting or disposition of,  15,117,395 shares of CHC Common Stock, and
therefore  may be deemed  beneficial  owners of the shares of CHC  Common  Stock
beneficially owned by PHC (15,103,487 shares) and Invista (13,908 shares) within
the meaning of Rule 13d-3(a) under the Act.

         The  Reporting  Persons  acted  together for the purposes of acquiring,
holding, voting or disposing of CHC Common Stock. Furthermore,  PLIC and PHC are
parties to the Shareholders'  Agreement.  The Shareholders'  Agreement obligates
PLIC and PHC to act in concert with respect to certain  matters  concerning CHC.
As a result,  the  Reporting  Persons may be deemed to constitute a group within
the meaning of the Act which pursuant to Rule  13d-5(b)(1) may be deemed to have
acquired  beneficial  ownership of all shares of CHC Common  Stock  beneficially
held by each  member of the group,  an  aggregate  of  15,117,395  shares of CHC
Common Stock or 25.5% of the outstanding shares of CHC Common Stock.

         (c) None of the Reporting  Persons,  nor, to the best  knowledge of the
Reporting  Persons,  any person  named on  Exhibit B hereto,  has  effected  any
transactions  in CHC Common  Stock  during the past 60 days except as  described
herein.

         On September 8, 2000, PHC sold 10,000,000 shares of CHC Common Stock at
a price of $10 per share.  The sale was made  pursuant  to a purchase  agreement
(the "Purchase  Agreement") dated May 5, 2000, to which PHC and Warburg,  Pincus
Equity Partners,  L.P.,  Warburg,  Pincus  Netherlands  Equity Partners I, C.V.,
Warburg,  Pincus  Netherlands  Equity  Partners  II, C.V.  and  Warburg,  Pincus
Netherlands Equity Partners III, C.V. (the "Purchasers") are parties whereby the
Purchasers agreed to purchase  10,000,000 shares of CHC Common Stock from PHC at
a  purchase  price of  $10.00  per  share  for an  aggregate  purchase  price of
$100,000,000.   The  Purchase   Agreement  was  subject  to  certain  conditions
including,  without  limitation,  the  receipt of  regulatory  and  governmental
approvals.

         (d) As an  investment  adviser,  Invista  invested  funds of investment
accounts  for which  Invista  acts as  investment  adviser in CHC Common  Stock.
Consequently, the persons who have interests in such investment accounts are the
beneficiaries  of the right to receive  dividends from, or the proceeds from the
sale of,  shares  of CHC  Common  Stock  for which  Invista  may be  deemed  the
beneficial owner.

         (e) Not applicable.

         Item 6 is  amended  by  adding  the  following  at the end of the first
paragraph:  "PHC is a party to the Purchase Agreement. See Item 5(c) and Exhibit
E."

         Item 7 is amended to read as follows:

Item 7.  Exhibits.
- ------   ---------

Exhibit A:     Joint  Filing  Agreement  dated  October 13,  2000,  among the
               Reporting Persons.

Exhibit B:     Directors and Executive  Officers  of  the Reporting  Persons (as
               of October 13, 2000).

Exhibit C:     Shareholders' Agreement  dated  April 1, 1998, among  PM, PHC and
               CHC (previously filed).

Exhibit D:     Warrant  dated  as of  March  31,  1998,  issued  by  CHC  to  PM
               (previously filed).

Exhibit E:     Purchase  Agreement  by  and among PHC and  the Purchasers  dated
               May 5, 2000  (incorporated by reference to Exhibit 1 to Amendment
               No. 6 to Schedule 13D relating,  to CHC Common Stock filed by the
               Purchasers, among others, on May 11, 2000).

                                    SIGNATURE

         After reasonable  inquiry and to the best of my knowledge and belief, I
certify that the information  set forth in this statement is true,  complete and
correct.

Dated:  October 13, 2000

                                 PRINCIPAL MUTUAL HOLDING COMPANY

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                 PRINCIPAL FINANCIAL GROUP, INC.

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                 PRINCIPAL FINANCIAL SERVICES, INC.

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                 PRINCIPAL LIFE INSURANCE COMPANY

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                 PRINCIPAL HOLDING COMPANY

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                 PRINCIPAL HEALTH CARE, INC.

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                    EXHIBIT A

                             Joint Filing Agreement

         In accordance  with Rule 13d-1(k) under the Securities  Exchange Act of
1934, as amended,  each of the parties hereto agrees with the other parties that
the  statement  on Schedule 13D  pertaining  to certain  securities  of Coventry
Health  Care,  Inc.  to which  this  agreement  is an exhibit is filed by and on
behalf of each such party and that any amendment thereto will be filed on behalf
of each such party.

Dated:  October 13, 2000



                                 PRINCIPAL MUTUAL HOLDING COMPANY

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                 PRINCIPAL FINANCIAL GROUP, INC.

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                 PRINCIPAL FINANCIAL SERVICES, INC.

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                 PRINCIPAL LIFE INSURANCE COMPANY

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                 PRINCIPAL HOLDING COMPANY

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                 PRINCIPAL HEALTH CARE, INC.

                                 By:/s/Joyce N. Hoffman_____________________
                                       -------------------------------------
                                         Joyce N. Hoffman
                                         Vice President & Corporate Secretary


                                    EXHIBIT B

            Directors and Executive Officers of the Reporting Persons

                                    Principal Mutual Holding Company
                                    Principal Financial Group, Inc.
                                    Principal Financial Services, Inc.
                                    Principal Life Insurance Company
Directors



Betsy J. Bernard Executive Vice President -- National Mass Markets Quest Communications 1801 California Street, 52nd Floor Denver, Colorado 80202 Jaclyn Carter-Miller Corporate Vice President and Chief Marketing Officer Motorola, Inc. 1000 Corporate Drive, Suite 700 Fort Lauderdale, Florida 33334 David J. Drury Chairman of the Board Principal Life Insurance Company 711 High Street Des Moines, Iowa 50392-0100 Daniel Gelatt President NMT Corporation 2004 Kramer Street Post Office Box 2287 La Crosse, Wisconsin 54602-2287 J. Barry Griswell President and Chief Executive Officer Principal Life Insurance Company Des Moines, Iowa 50392-0100 Charles S. Johnson Retired Executive Vice President DuPont 4935 Mesa Capella Drive Las Vegas, Nevada 89113-1441 William T. Kerr Chairman and Chief Executive Officer Meredith Corporation 1716 Locust Street Des Moines, Iowa 50309-0323 Lee Liu Retired Chairman of the Board and Chief Executive Officer Alliant Energy Corporation 3086 Loggerhead Road Cedar Rapids, Iowa 52411 Victor H. Loewenstein* Partner and Member of the Board Egon Zehnder International Couvs de Rive #10 CH-1204 Geneva, Switzerland Ronald D. Pearson Chairman, President and Chief Financial Officer Hy-Vee, Inc. 5820 Westown Parkway West Des Moines, Iowa 50266 Federico F. Pena Managing Director Vestar Capital Partners 1225 17th Street, Suite 1660 Denver, Colorado 80202 John R. Price Managing Director The Chase Manhattan Corporation 230 Park Avenue - 21st Floor New York, New York 10169 Dr. Donald M. Stewart President and Chief Executive Officer The Chicago Community Trust 222 North LaSalle Street, Suite 1400 Chicago, Illinois 60601-1009 Elizabeth E. Tallett* President and Chief Executive Officer Dioscor Inc. 48 Federal Twist Road Stockton, New Jersey 08559 Fred W. Weitz President and Chief Executive Officer Essex Meadows, Inc. 800 Second Avenue, Suite 150 Des Moines, Iowa 50309 *citizens of the United Kingdom Executive Officers The principal business address for all Executive Officers of Principal Mutual Holding Company, Principal Financial Group, Inc., Principal Financial Services, Inc. and Principal Life Insurance Company is 711 High Street, Des Moines, Iowa 50392. David J. Drury Chairman of the Board J. Barry Griswell President and Chief Executive Officer John E. Aschenbrenner Executive Vice President Michael T. Daley Executive Vice President Dennis P. Francis Senior Vice President Robert A. Slepicka Senior Vice President Michael H. Gersie Executive Vice President Thomas J. Graf Senior Vice President Mary A. O'Keefe Senior Vice President Richard L. Prey Executive Vice President Gary M. Cain Senior Vice President Carl C. Williams Senior Vice President and Chief Information Officer Karen E. Shaff Senior Vice President and General Counsel Douglas C. Cunningham Vice President and Controller Joyce N. Hoffman Vice President and Corporate Secretary Craig L. Bassett Vice President and Treasurer Paul F. Bognanno Senior Vice President Robb B. Hill Senior Vice President C. Robert Duncan Senior Vice President Norman R. Sorensen Senior Vice President Daniel J. Houston Senior Vice President Ellen Z. Lamale Senior Vice President & Chief Actuary Larry D. Zimpleman Senior Vice President Principal Holding Company The principal business address for all Directors and Officers of Principal Holding Company is 711 High Street, Des Moines, Iowa 50392. Directors Title John E. Aschenbrenner Dennis P. Francis Michael H. Gersie Thomas J. Graf J. Barry Griswell Ellen Z. Lamale Julia M. Lawler Richard L. Prey David J. Drury Chairman Officers Title David J. Drury Chairman and CEO J. Barry Griswell President John E. Aschenbrenner Senior Vice President Paul F. Bognanno Senior Vice President C. Robert Duncan Senior Vice President Dennis P. Francis Senior Vice President Michael H. Gersie Senior Vice President Thomas J. Graf Senior Vice President Robb B. Hill Senior Vice President Mary A. O'Keefe Senior Vice President Richard L. Prey Senior Vice President Robert A. Slepicka Senior Vice President Norman R. Sorensen Senior Vice President Carl C. Williams Senior Vice President and Chief Information Officer Douglas C. Cunningham Vice President and Controller Craig L. Bassett Treasurer Joyce N. Hoffman Vice President and Corporate Secretary Principal Health Care, Inc. The principal business address for all Directors and Officers of Principal Health Care, Inc. is 711 High Street, Des Moines, Iowa 50392. Director Title Gary M. Cain Michael H. Gersie J. Barry Griswell Richard L. Helms Thomas J. Graf Chairman Officer Title Thomas J. Graf President Karen E. Shaff Senior Vice President and General Counsel Gary M. Cain Vice President Richard L. Helms Vice President Joyce N. Hoffman Vice President and Corporate Secretary Craig L. Bassett Treasurer Laura K. Birkenholtz Assistant Corporate Secretary