Citigroup (C)

2005 Aggregated Option Exercises and Year-End Option Values

Notes to Options Exercised Table

(A) This column shows the number of shares underlying options exercised in 2005 by the covered executives. The actual number of shares received by these individuals from options exercised in 2005 (net of shares used to cover the exercise price and withheld to pay income tax) was:

(B) “Value Realized” is the difference between the exercise price and the market price on the exercise date, multiplied by the number of options exercised. “Value Realized” numbers do not necessarily reflect what the executive might receive if he or she sells the shares acquired by the option exercise, since the market price of the shares at the time of sale may be higher or lower than the price

on the exercise date of the option. In addition, the “Valued Realized” numbers do not reflect the tax impact of the exercise. All of the covered executives are subject to the stock ownership commitment described above.

(C) The share numbers in these columns have been restated to reflect equitable adjustments made to all Citigroup options outstanding on August 20, 2002 in respect of the distribution to all stockholders of shares of Travelers Property Casualty Corp. For each option grant, the number of options was increased by a factor of 1.0721990 and the exercise price was decreased by a factor of .9326627. The expiration and vesting dates of each option did not change.

(D) “Value of Unexercised In-the-Money Options” is the aggregate, calculated on a grant by grant basis, of the product of the number of unexercised options at the end of 2005 multiplied by the difference between the exercise price for the grant and the year-end market price, excluding grants for which the difference is equal to or less than zero.

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2004 Aggregated Option Exercises and Year-End Option Values

Notes to Option Exercises Table

(A) This column shows the number of shares underlying options exercised in 2004 by the covered executives. The actual number of shares received by these individuals from options exercised in 2004 (net of shares used to cover the exercise price and withheld to pay income tax) was:

(B) “Value Realized” is the difference between the exercise price and the market price on the exercise date, multiplied by the number of options exercised. “Value Realized” numbers do not necessarily reflect what the executive might receive if he or she sells the shares acquired by the option exercise, since the market price of the shares at the time of sale may be higher or lower than the price on the exercise date of the option. In addition, the “Valued Realized” numbers do not reflect the tax impact of the exercise. All of the covered executives are subject to the stock ownership commitment, which is described above.

(C) The share numbers in these columns have been restated to reflect equitable adjustments made to all Citigroup options outstanding on August 20, 2002 in respect of the distribution to all stockholders of shares of Travelers Property Casualty Corp. Such adjustments are more fully detailed in footnote C to the Summary Compensation Table above.

(footnotes continued on following page)

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(footnotes continued from previous page)

(D) “Value of Unexercised In-the-Money Options” is the aggregate, calculated on a grant by grant basis, of the product of the number of unexercised options at the end of 2004 multiplied by the difference between the exercise price for the grant and the year-end market price, excluding grants for which the difference is equal to or less than zero.