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                                                                   EXHIBIT 10.58

                      FAIR, ISAAC AND COMPANY, INCORPORATED
                             STOCK OPTION AGREEMENT
                                FEBRUARY 5, 2002
                             (FOR A. GEORGE BATTLE)

NONSTATUTORY
STOCK OPTION                      This option is not intended to qualify as an
                                  incentive stock option under Section 422 of
                                  the Internal Revenue Code.

VESTING                           Your entire option is 100% vested and
                                  exercisable in full at all times.

TERM                              Your option will expire at the close of
                                  business at Fair, Isaac and Company,
                                  Incorporated ("Fair, Isaac") headquarters on
                                  the earlier of (a) the Expiration Date shown
                                  on the Notice of Grant of Stock Options and
                                  Options Agreement ("Option Agreement,) or (b)
                                  12 months after the date on which your
                                  service, whether as a non-employee director,
                                  consultant or employee with Fair, Isaac
                                  terminates.

                                  Fair, Isaac determines when your service
                                  terminates for this purpose.

RESTRICTIONS ON
EXERCISE                          You agree not to exercise this option if the
                                  issuance of shares at that time would violate
                                  any law or regulation, as determined by Fair,
                                  Isaac. Moreover, you cannot exercise this
                                  option unless you have returned a signed copy
                                  of the Option Agreement to Fair, Isaac.

NOTICE OF EXERCISE                When you wish to exercise this option, you
                                  must notify Fair, Isaac by filing Fair,
                                  Isaac's "Notice of Exercise" form at the
                                  address given on the form. The notice will be
                                  effective when it is received by Fair, Isaac.
                                  If your notice was sent by facsimile
                                  transmission, it will be effective only if it
                                  is promptly confirmed by filing a form with an
                                  original signature.

                                  Your notice must specify how many shares you
                                  wish to purchase. Your notice must also
                                  specify how your shares should be registered
                                  (in your name only or in your and your
                                  spouse's names as community property or as
                                  joint tenants with right of survivorship).

                                  If someone else wants to exercise this option
                                  after your death, that person must prove to
                                  Fair, Isaac's satisfaction that he or she is
                                  entitled to do so.

FORM OF PAYMENT                   When you submit your Notice of Exercise, you
                                  must include payment of the exercise price for
                                  the shares you are purchasing, as shown on the
                                  Option Agreement. Payment may be made in one
                                  (or a combination) of the following forms:

                                        -  Cash or certified check.

                                        -  Irrevocable directions to a
                                           securities broker approved by Fair,
                                           Isaac to sell your option shares and
                                           to deliver all or a portion of the
                                           sale proceeds to Fair, Isaac in
                                           payment of the exercise price. (The

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                                           balance of the sale proceeds, if any,
                                           will be delivered to you via your
                                           broker.) The directions must be given
                                           by signing a special "Notice of
                                           Exercise" form provided by Fair,
                                           Isaac.

                                        -  Certificates for Fair, Isaac stock
                                           that you have owned for at least 12
                                           months, along with any forms needed
                                           to effect a transfer of the shares to
                                           Fair, Isaac. The value of the shares,
                                           determined as of the effective date
                                           of the option exercise, will be
                                           applied to the exercise price.

WITHHOLDING TAXES                 Fair, Isaac will not withhold taxes on stock
                                  option exercises made by non-employee
                                  directors.

RESTRICTIONS ON RESALE            By signing the Option Agreement, you agree not
                                  to sell any shares at a time when applicable
                                  laws or Fair, Isaac policies prohibit a sale.
                                  This restriction will apply as long as you are
                                  a non-employee director of Fair, Isaac (or a
                                  subsidiary).

TRANSFER OF OPTION                Prior to your death, only you or a permitted
                                  assignee as defined herein may exercise this
                                  option (unless this option or a portion
                                  thereof has been transferred to your former
                                  spouse by a domestic relations order by a
                                  court of competent jurisdiction). You may
                                  transfer this option or a portion of this
                                  option by gift to members of your immediate
                                  family, a partnership consisting solely of you
                                  and/or members of your immediate family, or to
                                  a trust established for the benefit of you
                                  and/or members of your immediate family
                                  (including a charitable remainder trust whose
                                  income beneficiaries consist solely of such
                                  persons). For purposes of the foregoing,
                                  "immediate family" means your spouse, children
                                  or grandchildren, including step-children or
                                  step-grandchildren. Any of these persons is a
                                  "permitted assignee." However, such transfer
                                  shall not be effective until you have
                                  delivered to Fair, Isaac notice of such
                                  transfer. You cannot otherwise transfer or
                                  assign this option. For instance, you may not
                                  sell this option or use it as security for a
                                  loan. If you attempt to do any of these
                                  things, this option will immediately become
                                  invalid. You may, however, dispose of this
                                  option in your will or by a written
                                  beneficiary designation. Such a designation
                                  must be filed with Fair, Isaac on the proper
                                  form and will be recognized only if it is
                                  received at Fair, Isaac headquarters before
                                  your death.

RETENTION RIGHTS                  Neither the Option Agreement nor the terms of
                                  this Agreement give you the right to be
                                  retained by Fair, Isaac (or any subsidiaries)
                                  in any capacity.

STOCKHOLDER RIGHTS                You, or your estate, beneficiaries or heirs,
                                  have no rights as a stockholder of Fair, Isaac
                                  until a certificate for your option shares has
                                  been issued. No adjustments are made for
                                  dividends or other rights if the applicable
                                  record date occurs before your stock
                                  certificate is issued, except as otherwise
                                  described herein.

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ADJUSTMENTS                       In the event of a subdivision of the
                                  outstanding common stock of Fair, Isaac, a
                                  declaration of a dividend payable in common
                                  stock, a declaration of a dividend payable in
                                  a form other than common stock in an amount
                                  that has material effect on the price of
                                  common stock, a combination or consolidation
                                  of the outstanding common stock (by
                                  reclassification or otherwise) into a lesser
                                  number of common stock, a recapitalization, a
                                  spinoff or a similar occurrence, the
                                  Compensation Committee of the Board of
                                  Directors shall make appropriate adjustments
                                  in (a) the number of shares of common stock
                                  underlying this option and (b) the exercise
                                  price under this option. Except as provide
                                  herein you shall have no rights by reason of
                                  any issue by the Company of stock of any class
                                  or securities convertible into stock of any
                                  class, any subdivision or consolidation of
                                  shares of stock of any class, the payment of
                                  any stock dividend or any other increase or
                                  decrease in the number of shares of stock of
                                  any class.

                                  In the event that the Company is a party to a
                                  merger or other reorganization, this option
                                  shall be subject to the agreement of merger or
                                  reorganization. Such agreement may provide,
                                  without limitation, for the assumption of this
                                  option by the surviving corporation or its
                                  parent, for their continuation by the Company
                                  (if the Company is a surviving corporation),
                                  or for settlement in cash.

APPLICABLE LAW                    This Agreement will be interpreted and
                                  enforced under the laws of the State of
                                  Delaware (without regard to its rules on
                                  choice of law).

OTHER AGREEMENTS                  This Agreement constitutes the entire
                                  understanding between you and Fair, Isaac
                                  regarding this option. Any prior agreements,
                                  commitments or negotiations concerning this
                                  option are superseded. This Agreement may be
                                  amended only in writing.

                                  BY SIGNING THE NOTICE OF GRANT AND STOCK
                                  OPTION AGREEMENT, YOU AGREE TO ALL OF THE
                                  TERMS AND CONDITIONS DESCRIBED ABOVE.

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                                                                   EXHIBIT 10.59

                      FAIR, ISAAC AND COMPANY, INCORPORATED

                       NONSTATUTORY STOCK OPTION AGREEMENT

                                NOVEMBER 16, 2001

                              FOR THOMAS GRUDNOWSKI

NONSTATUTORY                       This option is not intended to qualify as an
                                   incentive stock STOCK OPTION option under
                                   Section 422 of the Internal Revenue Code.

VESTING                            Your entire option vests and will be
                                   exercisable in full on the Vesting Date, as
                                   shown on the Notice of Grant of Stock Options
                                   and Options Agreement ("Option Agreement").
                                   In addition, your entire option vests and
                                   will be exercisable in full in the event
                                   that:

                                    - Your service as an employee or director
                                      of Fair, Isaac (or any subsidiary)
                                      terminates because of your disability or
                                      death, or

                                    - Fair, Isaac is subject to a Change in
                                      Control while you are still an employee or
                                      director of Fair, Isaac (or any
                                      subsidiary).

                                   No additional shares become exercisable after
                                   your Fair, Isaac service has terminated for
                                   any reason.

DEFINITIONS                       "Retirement" means that you are eligible for
                                   normal retirement or early retirement, as
                                   defined as follows:

                                    - "Normal Retirement Age" means age 65

                                    - "Early Retirement" means age 55 and
                                      completed 10 Years of Service. One Year of
                                      Service is the completion of at least
                                      1,000 hours of service during the year.

                                   "Disability" means that you are unable to
                                   engage in any substantial gainful activity by
                                   reason of a medically determinable, physical
                                   or mental impairment which can be expected to
                                   result in death or which has lasted (or can
                                   be expected to last) for a continuous period
                                   of not less than 12 months.

                                   "Change in control" shall be deemed to occur
                                   upon the occurrence of BOTH (A):

                                   i.   The sale, lease conveyance or other
                                        disposition of all or substantially all
                                        of Fair, Isaac's assets as an entirety
                                        or substantially as an entirety to any
                                        person, entity or group of persons
                                        acting in concert;

                                   ii.  Any "person" (as such term is used
                                        in Section 13(d) and 14(d) of the
                                        Securities and Exchange Act of 1934, as
                                        amended) becoming the "beneficial owner"
                                        (as defined in Rule 13d-3 under said
                                        Act), directly or indirectly of
                                        securities of Fair, Isaac representing
                                        50% or more of the total voting power
                                        represented by Fair, Isaac's then
                                        outstanding voting securities; or

                                   iii. A merger or consolidation of Fair,
                                        Isaac with any other corporation, other
                                        than a merger or consolidation which
                                        would result in the voting securities of
                                        Fair, Isaac outstanding

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                                        immediately prior thereto continuing to
                                        represent (either by remaining
                                        outstanding or by being converted into
                                        voting securities of the surviving
                                        entity) at least 50% of the total voting
                                        power represented by the voting
                                        securities of the Company or such
                                        surviving entity outstanding immediately
                                        after such merger or consolidation;

                                   AND (B):

                                   i.   A material adverse change in your
                                        position with Fair, Isaac which
                                        materially reduces your responsibility,
                                        without "cause" and without your written
                                        consent;

                                   ii.  A material reduction in your
                                        compensation without your written
                                        consent; or

                                   iii. A relocation of your place of
                                        employment without your written consent.

TERM                               Your option will expire in any event at the
                                   close of business at Fair, Isaac headquarters
                                   on the Expiration Date shown on the Option
                                   Agreement. (It will expire earlier if your
                                   Fair Isaac service terminates, as described
                                   below.)

REGULAR
TERMINATION                        If your service as an employee, director,
                                   consultant or advisor of Fair, Isaac (or any
                                   subsidiary) terminates for reasons other than
                                   retirement, disability or death, then your
                                   option will expire at the close of business
                                   at Fair, Isaac headquarters on the earlier of
                                   the expiration date stated in the Option
                                   Agreement or the 90th day after your
                                   termination date.

                                   Fair, Isaac determines when your service
                                   terminates for this purpose.

RETIREMENT                         If you retire as an employee or director of
                                   Fair, Isaac (or any subsidiary), or your
                                   service as a non-employee director terminates
                                   for any reason, then your option will expire
                                   at the close of business at Fair, Isaac
                                   headquarters on the earlier of the expiration
                                   date stated in the Option Agreement or the
                                   date 12 months after the date of your
                                   retirement. During that 12-month period, you
                                   may exercise your option.

                                   Fair, Isaac determines your retirement date
                                   for this purpose.

DISABILITY                         If you become disabled as an employee,
                                   director, consultant or advisor of Fair,
                                   Isaac (or any subsidiary), then your option
                                   will expire at the close of business at Fair,
                                   Isaac headquarters on the earlier of the
                                   expiration date stated in the Option
                                   Agreement or the date 12 months after the
                                   commencement of your disability.

                                   Fair, Isaac determines the commencement date
                                   of your disability for this purpose.

DEATH                              If you die as an employee, director,
                                   consultant or advisor of Fair, Isaac (or any
                                   subsidiary), then your option will expire at
                                   the close of business at Fair, Isaac
                                   headquarters on the earlier of the expiration
                                   date stated in the Option Agreement or the
                                   date 12 months after the date of death.
                                   During that 12-month period, your estate,
                                   beneficiary or heirs may exercise your
                                   option.

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LEAVES OF
ABSENCE                            For purposes of this option, your service
                                   does not terminate when you go on a military
                                   leave, a sick leave or another bona fide
                                   leave of absence, if the leave was approved
                                   by Fair, Isaac in writing. But your service
                                   will be treated as terminating 90 days after
                                   you went on leave, unless your right to
                                   return to active work is guaranteed by law or
                                   by a contract. And your service terminates in
                                   any event when the approved leave ends,
                                   unless you immediately return to active work.

                                   Fair, Isaac determines which leaves count for
                                   this purpose.

RESTRICTIONS
ON EXERCISE                        You agree not to exercise this option if the
                                   issuance of shares at that time would violate
                                   any law or regulation, as determined by Fair,
                                   Isaac. Moreover, you cannot exercise this
                                   option unless you have returned a signed copy
                                   of the Option Agreement to Fair, Isaac.

NOTICE OF
EXERCISE                           When you wish to exercise this option, you
                                   must notify Fair, Isaac by filing the proper
                                   "Notice of Exercise" form at the address
                                   given on the form. The notice will be
                                   effective when it is received by Fair, Isaac.
                                   But if your notice was sent by facsimile
                                   transmission, it will be effective only if it
                                   is promptly confirmed by filing a form with
                                   an original signature.

                                   Your notice must specify how many shares you
                                   wish to purchase. Your notice must also
                                   specify how your shares should be registered
                                   (in your name only or in your and your
                                   spouse's names as community property or as
                                   joint tenants with right of survivorship).

                                   If someone else wants to exercise this option
                                   after your death, that person must prove to
                                   Fair, Isaac's satisfaction that he or she is
                                   entitled to do so.

FORM OF
PAYMENT                            When you submit your Notice of Exercise, you
                                   must include payment of the exercise price
                                   for the shares you are purchasing, as shown
                                   on the Option Agreement. Payment may be made
                                   in one (or a combination of two or more) of
                                   the following forms:

                                    - Your personal check, a cashier's check
                                      or a money order.

                                    - Irrevocable directions to a securities
                                      broker approved by Fair, Isaac to sell
                                      your option shares and to deliver all or a
                                      portion of the sale proceeds to Fair,
                                      Isaac in payment of the exercise price.
                                      (The balance of the sale proceeds, if any,
                                      will be delivered to you via your broker.)
                                      The directions must be given by signing a
                                      special "Notice of Exercise" form provided
                                      by Fair, Isaac.

                                    - Certificates for Fair, Isaac stock that
                                      you have owned for at least 12 months,
                                      along with any forms needed to effect a
                                      transfer of the shares to Fair, Isaac. The
                                      value of the shares, determined as of the
                                      effective date of the option exercise,
                                      will be applied to the exercise price.

WITHHOLDING
TAXES                              You will not be allowed to exercise this
                                   option unless you make acceptable
                                   arrangements to pay any withholding taxes
                                   that may be due as a result of the option
                                   exercise. These arrangements must be
                                   satisfactory to Fair, Isaac. You may direct
                                   Fair, Isaac to withhold shares with a market
                                   value equal to the withholding taxes due from

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                                   the shares to be issued as a result of your
                                   exercise.

RESTRICTIONS
ON RESALE                          By signing the Option Agreement, you agree
                                   not to sell any shares at a time when
                                   applicable laws or Fair, Isaac policies
                                   prohibit a sale. This restriction will apply
                                   as long as you are an employee or director of
                                   Fair, Isaac (or a subsidiary).

TRANSFER OF
OPTION                             Prior to your death, only you or a permitted
                                   assignee as defined herein may exercise this
                                   option (unless this option or a portion
                                   thereof has been transferred to your former
                                   spouse by a domestic relations order by a
                                   court of competent jurisdiction). You may
                                   transfer this option or a portion of this
                                   option by gift to members of your immediate
                                   family, a partnership consisting solely of
                                   you and/or members of your immediate family,
                                   or to a trust established for the benefit of
                                   you and/or members of your immediate family
                                   (including a charitable remainder trust whose
                                   income beneficiaries consist solely of such
                                   persons). For purposes of the foregoing,
                                   "immediate family" means your spouse,
                                   children or grandchildren, including
                                   step-children or step-grandchildren. Any of
                                   these persons is a "permitted assignee."
                                   However, such transfer shall not be effective
                                   until you have delivered to Fair, Isaac
                                   notice of such transfer. You cannot otherwise
                                   transfer or assign this option. For instance,
                                   you may not sell this option or use it as
                                   security for a loan. If you attempt to do any
                                   of these things, this option will immediately
                                   become invalid. You may, however, dispose of
                                   this option in your will or by a written
                                   beneficiary designation. Such a designation
                                   must be filed with Fair, Isaac on the proper
                                   form and will be recognized only if it is
                                   received at Fair, Isaac headquarters before
                                   your death.

RETENTION
RIGHTS                             Your option, the Option Agreement or the
                                   terms of this Agreement do not give you the
                                   right to be retained by Fair, Isaac (or any
                                   subsidiaries) in any capacity. Fair, Isaac
                                   (and any subsidiaries) reserve the right to
                                   terminate your service at any time, with or
                                   without cause.

STOCKHOLDER
RIGHTS                             You, or your estate, beneficiaries or heirs,
                                   have no rights as a stockholder of Fair,
                                   Isaac until a certificate for your option
                                   shares has been issued. No adjustments are
                                   made for dividends or other rights if the
                                   applicable record date occurs before your
                                   stock certificate is issued, except as
                                   described in the Plan.

ADJUSTMENTS                        In the event of a stock split, a stock
                                   dividend or a similar change in Fair, Isaac
                                   stock, the number of shares covered by this
                                   option and the exercise price per share may
                                   be adjusted as Fair, Isaac may determine
                                   pursuant to the Plan.

APPLICABLE LAW                     This Agreement will be interpreted and
                                   enforced under the laws of the State of
                                   Delaware (without regard to its rules on
                                   choice of law).

                                      -4-

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OTHER
AGREEMENTS                         The Option Agreement and this Nonstatutory
                                   Stock Option Agreement constitute the entire
                                   understanding between you and Fair, Isaac
                                   regarding this option. Any prior agreements,
                                   commitments or negotiations concerning this
                                   option are superseded. This Agreement may be
                                   amended only in writing.

BY SIGNING THE NOTICE OF GRANT AND STOCK OPTION AGREEMENT, YOU AGREE TO ALL OF
THE TERMS AND CONDITIONS DESCRIBED ABOVE.

                                      -5-

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