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                                                                   Exhibit 10.29

February 3, 2003

Michael S. Helfer, Esq.

Dear Michael:

We are delighted to extend to you an offer to join Citigroup, the leading global
financial services firm, as General Counsel and Corporate Secretary. Your
employment with Citigroup will commence on February 3, 2003.

If you accept, you will be joining a family of companies that serves 200 million
customers in more than 100 countries and is bound together by a steady focus on
growth, a workforce committed to excellence, and a workplace based on mutual
respect, where every employee can make a difference.

In your capacity as General Counsel and Corporate Secretary of Citigroup Inc.
(the "Company" and, together with its subsidiaries, "Citigroup"), you will
report directly to me and have responsibility for Citigroup's legal and
compliance matters. You have been designated by the Board of Directors as an
executive officer of the Company and will be a member of the Citigroup
Management Committee.

BASE SALARY. Your salary will be paid in accordance with the Company's standard
policies (currently, semi-monthly) at an annual rate of $400,000.

INCENTIVE AWARDS. You will receive an incentive award with a pre-tax nominal
value of no less than $2,300,000 ("2004 Incentive Award"), subject to
extraordinary circumstances drastically negatively affecting Citigroup's
operating results and, in such event, only to the extent of any similar effect
on total compensation (including incentive awards) made to similarly situated
senior executives. The 2004 Incentive Award will be delivered to you as follows:

(1)   A lump sum cash payment of $812,500 (less applicable withholdings and
      deductions) will be paid to you as soon as practical following your start
      date;

(2)   A lump sum cash payment of $812,500 (less applicable withholdings and
      deductions), will be paid to you at the same time that cash bonuses are
      paid to similarly situated Citigroup executives in the first quarter of
      2004; and

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Michael S. Helfer, Esq.
February 3, 2003
Page 2 of 8

(3)   A restricted stock award with a pre-tax nominal value of $675,000 pursuant
      to the Company's Capital Accumulation Program (described below) will be
      granted to you at the same time that such restricted stock awards are
      granted to similarly situated Citigroup executives in the first quarter of
      2004.

The 2004 Incentive Award, as well as any future discretionary incentive awards
you may receive from the Company, will be granted as a combination of a cash
bonus and a retention award of restricted stock in accordance with our Capital
Accumulation Program ("CAP"), a tax deferred plan. Under current program
guidelines for members of the Management Committee, the restricted stock award
will be issued at a 25% discount from the market price and will be equal to 25%
of your total annual compensation (base salary plus the pre-tax nominal value of
your annual incentive award). Awards of restricted stock are subject to vesting
conditions and will be cancelled if the conditions to vesting are not satisfied.
These shares will vest and be distributed to you on a date that is three years
from the date of the award, provided that you remain continuously employed by
the Company through the vesting date. In order to be eligible to receive any
discretionary incentive award, you must be actively employed on the date the
award is granted. More detailed information about CAP will be contained in the
prospectus and award notification.

Beginning in 2004, you will be eligible to be considered for a stock option
grant at the same time as other similarly situated Citigroup senior executives.

You will not be eligible to receive any of the incentive awards described above
(whether guaranteed or discretionary) if, before the date of the scheduled
delivery, you have voluntarily terminated your employment or you have been
terminated by the Company for "Cause". "Cause" shall mean an action taken by a
regulatory body or a self regulatory organization ("SRO") that substantially
impairs you from performing your duties or your gross misconduct in connection
with your employment; material breach of the Company's policies or procedures;
dishonesty; breach of your fiduciary duty of loyalty to the Company; material
violation of a federal or state securities law, rule or regulation; conviction
of a felony; material failure in the performance of your duties; or any material
misrepresentation made to us in furtherance of this offer.

SIGN-ON STOCK OPTION AWARD. You will receive a sign-on stock option grant of
70,000 shares of Citigroup Inc. common stock. This option grant will have a term
of six years. The exercise price for the stock option grant will be set at the
closing price of Citigroup Inc. common stock on the trading day immediately
prior to your start date. One-third of the options will vest on each anniversary
of the grant date. More detailed information on the terms and conditions of this
option

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Michael S. Helfer, Esq.
February 3, 2003
Page 3 of 8

grant will be outlined in the notification materials and prospectus that will be
forwarded to you following the grant date for the award.

SERVICE CREDIT. For purposes of meeting the "Rule of 75" solely with respect to
any Citigroup stock option, restricted stock, or deferred stock award made to
you, you will receive two additional years' service credit.

STOCK OWNERSHIP COMMITMENT. One of our core values at Citigroup is employee
ownership.  Currently, two-thirds of our employees are owners, and our goal
is for every employee to own a part of Citigroup.

Members of the Management Committee and senior executives of the Company are
subject to the Citigroup Stock Ownership Commitment ("SOC"), under which you
agree to hold 75% of the Citigroup shares you own and that you acquire from the
Company in the future, subject to a minimum holding requirement. Additional
information about the SOC will be provided to you under separate cover.

TRANSITION ITEMS. To reflect the transition issues resulting from your joining
Citigroup, the following will apply on a one-time basis:

(1)   You will be paid a lump sum payment for the portions of your short-term
      bonus and long-term bonus for 2002 that are scheduled to be paid to you in
      2003 by Nationwide and that you do not receive from Nationwide, up to a
      maximum of (pre-tax) $1,130,000. This payment will be paid to you before
      April 1, 2003.

(2)   You will receive a sign-on award of 6,500 shares of restricted stock.
      These shares will vest and be distributed to you on a date that is three
      years from the date of the award, provided that you remain continuously
      employed by the Company through the vesting date. If your employment is
      terminated for any reason and other than as provided below, this sign-on
      restricted stock award will be cancelled. More detailed information about
      this sign-on restricted stock award will be contained in the prospectus
      and your award notification.

(3)   You will be eligible for relocation benefits pursuant to the applicable
      Citigroup relocation policy for similarly situated executives, during the
      first 12 months of your employment. You will not be eligible to receive
      reimbursement for relocation-related expenses incurred after February 2,
      2004. All relocation benefits will be made in compliance with the
      Sarbanes-Oxley Act of 2002, which may restrict the Company's ability to
      extend credit to you in connection with your relocation.

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Michael S. Helfer, Esq.
February 3, 2003
Page 4 of 8

(4)   The Company will purchase your residence in Ohio pursuant to the terms of
      the applicable relocation program, which requires us to order two
      appraisals of the home by appraisers from a list of designated appraisers
      in the area who are qualified, rated and licensed. The appraised values
      will be averaged if they are within 5% of each other; if they differ by an
      amount greater than 5%, a third appraisal will be ordered and the two
      highest appraised values will be averaged to determine the value of the
      home. Should all three appraised values be equidistant, then the value
      will be the average of all three appraised values. As required by law, the
      proceeds of this purchase of your residence will be reported to you on a
      Form 1099. You will be responsible for the payment of federal, state and
      local taxes, as applicable, arising from this purchase of your residence.

(5)   The Company will fully reimburse you for your temporary housing costs in
      the New York City metropolitan area and your costs for reasonable travel
      between Washington, D.C., and New York City until the earlier of (a) your
      acquisition of permanent housing in the New York City metropolitan area or
      (b) February 2, 2004. The reimbursement of the costs detailed in this
      paragraph (5) will constitute taxable compensation to you, will be
      reported as such on your Form W-2, and will be subject to a tax gross-up
      at the applicable marginal rates. For your information, under current
      Company practices, the income and applicable taxes associated with
      perquisite income of this type will be included in your wages at the end
      of the calendar year in which such income is received.

(6)   Prior to your start date, you will re-structure your participation in the
      retirement payments program with Wilmer, Cutler & Pickering in a manner
      that is satisfactory to Citigroup and so as to assure no conflict of
      interest while you are employed with Citigroup.

FINANCIAL PLANNING. As a member of the Management Committee, you are eligible to
participate in our Financial Planning Program conducted by AYCO.

COMPENSATION AND BENEFITS. You will be eligible to participate in the Company's
comprehensive benefit programs. All compensation and benefits are deliverable in
accordance with the Company's policies, plans and programs in effect at the time
of delivery. Further details regarding these policies, benefit plans and
programs will be provided when you begin your employment. Please note that all
compensation, benefits, and other policies, plans and programs are subject to
change at management's discretion.

TERMINATION OF EMPLOYMENT WITHOUT CAUSE; DEATH. In the event that the Company
terminates your employment without Cause (as defined above) or if you should die
on or before February 3, 2005, you will not be eligible for the

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Michael S. Helfer, Esq.
February 3, 2003
Page 5 of 8

payments and benefits set forth in this letter as of the effective date of such
termination and the following will apply:

(1)   If such termination or death occurs prior to the issuance of the 2004
      Incentive Award in full:

      (a)   The Company will make a cash payment to you (or to your estate)
            equal to the value of any portion of the 2004 Incentive Award that
            has not been issued to you (less applicable withholdings and
            deductions) as soon as practical after the effective date of such
            termination or death, as applicable;

      (b)   The Company will make a cash payment to you (or to your estate) of
            $400,000 (less applicable withholdings and deductions) as soon as
            practical after the effective date of such termination or death, as
            applicable;

      (c)   Two-thirds of the sign-on stock option grant of 70,000 shares of
            Citigroup Inc. common stock will immediately vest, and you (or your
            estate) will have two years therefrom to exercise those options,
            after which time they will be cancelled, and the remaining one-third
            will be cancelled;

      (d)   Two-thirds of the sign-on award of 6,500 shares of restricted stock
            will immediately vest upon such termination, or death, as
            applicable, and the remaining one-third will be cancelled; and

      (e)   You (or your estate) will receive the basic shares and a pro-rated
            portion of the premium shares allocable to any outstanding award of
            restricted stock under the Capital Accumulation Program;

or

(2)   If such termination or death occurs after the issuance of the 2004
      Incentive Award in full but prior to February 3, 2005:

      (a)   The Company will make a cash payment to you (or your estate) of
            $400,000 (less applicable withholdings and deductions) as soon as
            practical after the effective date of such termination or death, as
            applicable;

      (b)   The sign-on stock option grant of 70,000 shares of Citigroup Inc.
            common stock will immediately vest in full and you (or your estate)

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Michael S. Helfer, Esq.
February 3, 2003
Page 6 of 8

            will have two years therefrom to exercise those options, after which
            time they will be cancelled;

      (c)   The sign-on award of 6,500 shares of restricted stock will
            immediately vest in full upon such termination or death, as
            applicable; and

      (d)   You (or your estate) will receive the basic shares and a pro-rated
            portion of the premium shares allocable to any outstanding award of
            restricted stock under the Capital Accumulation Program.

The items described in this "Termination of Employment Without Cause; Death"
section will be delivered to you (i) in lieu of any other compensation or
benefits provided for in this letter and any separation pay or similar benefits
you might otherwise be eligible to receive pursuant to any Citigroup plan or
policy and (ii) in consideration for, and provided that you execute, a general
release that is acceptable to the Company.

If your employment with the Company is terminated by reason of your permanent
disability (as defined by the Company's long-term disability carrier) prior to
the issuance of the 2004 Incentive Award in full, the 2004 Incentive Award will
be paid to you on a pro-rated basis based on the months that you actually worked
in 2003. Such payment shall be made to you when incentive awards are made to
other similarly situated Citigroup executives. The Company shall have no
obligation to pay you or your estate any incentive award for any year after the
year in which you became permanently disabled. Outstanding stock options and
other outstanding equity awards shall be treated in accordance with the
provisions of the applicable plan.

PRIOR RESTRICTIVE COVENANTS. We understand that you will abide by any
pre-existing terms and conditions that are contained in any contractual
restrictive covenants you may have entered into with any of your prior
employers, including any covenants relating to the hiring or solicitation of
employees or maintaining the confidentiality of proprietary information. You
represent that your employment with the Company will not be in violation of any
pre-existing restrictive covenant, and you understand that this offer of
employment is contingent upon same.

NON-SOLICITATION. In consideration of your employment, you agree that while you
are employed with the Company and for one year following termination of your
employment, you will not directly or indirectly solicit, induce, or otherwise
encourage any person to leave the employment of or terminate any customer
relationship with Citigroup.

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Michael S. Helfer, Esq.
February 3, 2003
Page 7 of 8

CONFIDENTIAL AND PROPRIETARY INFORMATION. You also agree that during your
employment, you will have access to or acquire confidential, client, employee,
competitive and/or other business information that is unique and cannot be
lawfully duplicated or easily acquired. You understand and agree that you will
have a continuing obligation not to use, publish or otherwise disclose such
information either during or after your employment with the Company unless so
required by a statute, court of law, governmental agency or self-regulatory
organization having supervisory authority over the business of the Company, or
by any administrative or legislative body (including a committee thereof) with
jurisdiction to order you to divulge, disclose or make accessible such
information. Prior to any such compelled disclosure, however, you shall give
notice to the General Counsel for litigation at the Company of any such request
or demand for such information immediately upon your receipt of same and shall
reasonably cooperate with the Company in any application the Company may make
seeking a protective order barring disclosure of such information.

GOVERNING LAW AND ARBITRATION. The terms and conditions set forth in this letter
will be governed by and interpreted in accordance with the laws of the State of
New York. Any controversy or dispute relating to your employment with or
separation from the Company, including with respect to the terms and conditions
set forth in this letter, will be resolved in accordance with the Employment
Arbitration Policy described in the enclosed Principles of Employment, which are
incorporated herein by reference.

TAXES. All payments, incentive awards, perquisites, and benefits set forth in
this letter are subject to, and the Company will withhold, such federal, state
and local taxes as the Company reasonably determines are required by applicable
law or regulation. You remain obligated to pay all required taxes on all
payments, incentive awards, perquisites, and benefits regardless of whether
these amounts have been withheld or are required to be withheld by the Company.

In addition, this letter should not be construed as a promise or guarantee of
employment with Citigroup for any defined period of time. Your employment
relationship with the Company is "at will", which affords either party the right
to terminate the relationship at any time for any reason or for no reason at all
not otherwise prohibited by law.

Your employment is contingent upon successful completion of any and all
procedures and verifications to meet employment eligibility. Please contact
Edith Ginsberg at 212-559-2957 to make appropriate arrangements.

Any discussions that you may have had with us are not part of this offer unless
they are described in this letter, the Citigroup Corporate Center Employee
Handbook, the Citigroup Statement of Business Practices or in the enclosed

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Michael S. Helfer, Esq.
February 3, 2003
Page 8 of 8

Principles of Employment (which you must read carefully, sign and return as part
of accepting our offer).

We are confident that Citigroup will provide you with a rewarding and
challenging career, and I look forward to working with you in your new role.
Please let me know that you have accepted this offer by signing below and
returning your signed letter and Principles of Employment to me.

Sincerely,

/s/ Michael T. Masin
------------------------------
Michael T. Masin
Vice Chairman and
   Chief Operating Officer

ACCEPTED AND AGREED:

/s/ Michael S. Helfer                           February 3, 2003
------------------------------------            ------------------------
Michael S. Helfer                               Date

Enclosure:  Principles of EmploymentQuickLinks
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Exhibit 10.4.2    
  

 
  STOCK OPTION AGREEMENT    
  

        Pursuant to the Grant Notice and this Stock Option Agreement, the Company has granted you an option to purchase the number of shares of the Company's common stock
("Common Stock") indicated in the Grant Notice at the exercise price indicated in the Grant Notice. 

        Your
option is granted in connection with and in furtherance of the Company's 2001 Stock Option Plan (the "Plan") for the Company's employees (including officers), directors or
consultants. Defined terms not explicitly defined in this Stock Option Agreement but defined in the Plan shall have the same definitions as in the Plan. 

        The
details of your option are as follows: 

        1.    VESTING. Subject to the limitations contained herein, your option will vest as provided in the Grant Notice, provided that
vesting will cease upon the termination of your Continuous Status as an Employee, Director or Consultant. The vesting schedule requires continued employment or service through each applicable vesting
date as a condition to the vesting of the applicable installment of the options and the rights and benefits under this Stock Option Agreement. Employment or service, even if substantial, for only a
portion of a vesting period will not entitle you to any proportionate vesting or avoid or mitigate a termination of rights and benefits upon or following a termination of employment or service as
provided herein. 

        2.    METHOD OF PAYMENT.

        (a)  Payment Options. Payment of the exercise price by cash or check is due in full upon exercise of all or any part of your
option, provided that you may elect, to the extent permitted by applicable law and the Grant Notice, to make payment of the exercise price under one of the following alternatives: 

          (i)  Payment
pursuant to a program developed under Regulation T as promulgated by the Federal Reserve Board which, prior to the issuance of Common Stock, results in
either the receipt of cash (or check) by the Company or the receipt of irrevocable instructions to pay the aggregate exercise price to the Company from the sales proceeds; 

        (ii)  Provided
that at the time of exercise the Company's Common Stock is publicly traded and quoted regularly in the Wall Street Journal, payment by delivery of
already-owned shares of Common Stock, held for the period required to avoid a charge to the Company's reported earnings, and owned free and clear of any liens, claims. encumbrances or security
interests, which Common Stock shall be valued at its fair market value on the date of exercise; or 

        (iii)  Payment
by a combination of the above methods. 

        3.    WHOLE SHARES; RIGHTS WITH RESPECT TO SHARES. Your option may only be exercised for whole shares. You will have no rights
or privileges of a stockholder of the Company as to any shares underlying the option until the issuance and delivery of a certificate evidencing the shares registered in your name following the
exercise of the option. No adjustment will be made for dividends or other rights as to a stockholder for which a record date is prior to such date of delivery. 

        4.    SECURITIES LAW COMPLIANCE. Notwithstanding anything to the contrary contained herein, your option may not be exercised
unless the shares issuable upon exercise of your option are then registered under the Securities Act of 1933, as amended (the "Securities Act"), or, if such shares are not then so registered, the
Company has determined that such exercise and issuance would be exempt from the registration requirements of the Securities Act. 

        5.    TERM. Subject to Section 12 of the Plan, the term of your option commences on the Date of Grant and expires upon
the earliest of: 

          (i)  the
Expiration Date indicated in the Grant Notice; 

 

        (ii)  the
tenth (10th) anniversary of the Date of Grant; 

        (iii)  eighteen
(18) months after your death, if you die during, or within three (3) months after the termination of your Continuous Status as Employee,
Director or Consultant; 

        (iv)  twelve
(12) months after the termination of your Continuous Status as Employee, Director or Consultant due to disability; 

        (v)  immediately
after the termination of your Continuous Status as Employee, Director or Consultant for Cause; or 

        (vi)  three
(3) months after the termination of your Continuous Status as an Employee, Director or Consultant for any other reason, provided that if during any part of
such three (3)-month period the option is not exercisable solely because of the condition set forth in paragraph 5 (Securities Law Compliance), in which event the option shall not expire until
the earlier of the Expiration Date or until it shall have been exercisable for an aggregate period of three (3) months after the termination of Continuous Status as an Employee, Director or
Consultant. 

        For
these purposes, "Cause" shall include, but not be limited to, the commission of any act of fraud, embezzlement or dishonesty, any unauthorized use or disclosure of confidential
information or trade secrets of the Company or any of its Affiliates, or any other intentional misconduct adversely affecting the business or affairs of the Company or any of its Affiliates in a
material manner. The foregoing definition shall not be deemed to be inclusive of all the acts or omissions which the Company may consider as ground for your dismissal or discharge. 

        In
all cases, the option, to the extent not exercisable on the date your Continuous Status as an Employee, Director or Consultant terminates (regardless of the reason), shall terminate
on that date. 

        To
obtain the federal income tax advantages associated with an "incentive stock option" (to the extent your option is intended and qualifies as an incentive stock option) the Code
requires that at all times beginning on the grant date of the option and ending on the day three (3) months before the date of the option's exercise, you must be an employee of the Company or
one of its Affiliates, except in the event of your death or permanent and total disability. The Company cannot guarantee that your option will be treated as an "incentive stock option" if you exercise
your option more than three (3) months after the date your employment with the Company and its Affiliates terminates. 

        6.    EXERCISE.

        (a)  You
may exercise the vested portion of your option during its term by delivering a notice of exercise (in a form designated by the Company) together with the exercise
price to the Secretary of the Company, or to such other person as the Company may designate, during regular business hours, together with such additional documents as the Company may then require. 

        (b)  By
exercising your option you agree that: 

          (i)  as
a condition to any exercise of your option, the Company may require you to enter an arrangement providing for the payment by you to the Company of any tax
withholding obligation of the Company (and/or any of its Affiliates) arising by reason of (1) the exercise of your option; (2) the lapse of any substantial risk of forfeiture to which
the shares are subject at the time of exercise; or (3) the disposition of shares acquired upon such exercise; and 

        (ii)  you
will notify the Company in writing within fifteen (15) days after the date of any disposition of any of the shares of the Common Stock issued upon exercise
of an incentive stock option that occurs within two (2) years after the Date of Grant or within one (1) year after such shares of Common Stock are transferred upon exercise of your
option. 

        7.    TRANSFERABILITY. Your option is not transferable, except by will or by the laws of descent and distribution, and is
exercisable during your life only by you. Notwithstanding the foregoing, by 

2

 

delivering written notice to the Company, in a form satisfactory to the Company, you may designate a third party who, in the event of your death, shall thereafter be entitled to exercise your option. 

        8.    OPTION NOT A SERVICE CONTRACT. Your option is not an employment contract and nothing in your option shall be deemed to
create in any way whatsoever any obligation on your part to continue in the employ of the Company or one of its Affiliates, or of the Company and its Affiliates to continue your employment with the
Company or any of its Affiliates. In addition, nothing in your option shall obligate the Company, any Affiliate, and their respective shareholders, board of directors, officers or employees to
continue any relationship which you might have as a director or consultant for the Company or one of its Affiliates. 

        9.    NOTICES. Any notices provided for in your option or the Plan shall be given in writing and shall be deemed effectively
given upon receipt or, in the case of notices delivered by the Company to you, five (5) days after deposit in the United States mail, postage prepaid, addressed to you at the last address you
provided to the Company. 

        10.  GOVERNING PLAN DOCUMENT. Your option is subject to all the provisions of the Plan, the provisions of which are hereby
made a part of your option, including without limitation the provisions of the Plan relating to option provisions, and is further subject to all interpretations, amendments, rules and regulations
which may from time to time be promulgated and adopted pursuant to the Plan. In the event of any conflict between the provisions of your option and those of the Plan, the provisions of the Plan shall
control. Unless otherwise expressly provided in this Stock Option Agreement, provisions of the Plan that confer discretionary authority on the Board (or a committee thereof) do not (and shall not be
deemed to) create any additional rights for you not expressly set forth in this Stock Option Agreement. 

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QuickLinks

Exhibit 10.4.2

STOCK OPTION AGREEMENT

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