Stock price achievement of common stock (in dollars per share)

[Table of Contents](#i82eec5aa49a24290a07e4a9f99c1e608_7)                                  discount of the closing price of the Company’s common stock on the last business day of each calendar quarter. Effective January 1, 2020, the employee discount under the employee stock purchase plan was modified from 15% to 10%. In addition, the Company temporarily suspended the employee discount, effective April 9, 2020, to help manage discretionary costs in response to the COVID-19 pandemic. Effective January 1, 2021, the discount under the employee stock purchase plan was re-established at 5%, which is considered noncompensatory and therefore does not give rise to recognizable compensation cost. The Company recognized $239 million, $369 million and $229 million of share-based compensation expense during the years ended December 31, 2021, 2020 and 2019, respectively. At December 31, 2021, the total remaining unrecognized compensation cost for unvested stock options, restricted stock units and awards and performance share units, net of estimated forfeitures, of $314 million is expected to be recognized over a weighted-average period of 2.1 years. During the years ended December 31, 2021, 2020 and 2019, stock options to purchase 4.4 million, 2.6 million and 4.7 million shares, respectively, were exercised.Acquisition of First Data Upon the completion of the First Data acquisition on July 29, 2019 (see Note 4), First Data’s equity awards, whether vested or unvested, were either settled in shares of the Company’s common stock or converted into equity awards denominated in shares of the Company’s common stock based on a defined exchange ratio of 0.303, as described below.First Data time-vesting awards that were granted at or prior to the initial public offering of First Data (the “First Data IPO”) were accelerated in full in accordance with their terms, except for certain executive officer awards and certain awards held by retirement-eligible employees, which were not accelerated and instead converted into equity awards denominated in shares of the Company’s common stock. Each such time-vesting, pre-IPO restricted stock and restricted stock unit award was settled in shares of the Company’s common stock based on the exchange ratio. Each time-vesting, pre-IPO stock option award was converted into an option to purchase a number of shares of the Company’s common stock based on the exchange ratio with an exercise price per share equal to the exercise price per share of such stock option award immediately prior to the completion of the acquisition divided by the exchange ratio. First Data equity awards granted at the time of the First Data IPO that were subject to vesting solely upon achievement of a $32 price per share of First Data common stock were converted into equity awards denominated in shares of the Company’s common stock and remained eligible to vest upon satisfaction of an adjusted target price per share of the Company’s common stock equal to the existing First Data target price divided by the exchange ratio. Such awards vested during the third quarter of 2019. Each restricted stock and restricted stock unit award that was a performance-vesting IPO award was converted into an award denominated in shares of the Company’s common stock based on the exchange ratio, and each stock option award that was a performance-vesting award was converted into an option to purchase a number of shares of the Company’s common stock based on the exchange ratio with an exercise price per share equal to the exercise price per share of such stock option award immediately prior to the completion of the acquisition divided by the exchange ratio. As converted, the performance-vesting awards continued to be governed by the same terms and conditions as were applicable prior to the acquisition and vested during the year ended December 31, 2019 upon satisfaction of the adjusted performance condition.The remaining existing First Data equity awards, whether vested or unvested, were converted into equity awards denominated in shares of the Company’s common stock based on the exchange ratio, with an exercise price per share for option awards equal to the exercise price per share of such stock option award immediately prior to the completion of the acquisition divided by the exchange ratio, and will continue to be governed by generally the same terms and conditions as were applicable prior to the acquisition; provided that, subject to compliance with Section 409A of the Internal Revenue Code, such awards will accelerate upon a covered termination as defined in the merger agreement. The portion of the fair value of the replacement awards related to services provided prior to the acquisition was $768 million and was accounted for as consideration transferred. The remaining portion of the fair value of $467 million was associated with future service and recognized as compensation expense, net of estimated forfeitures, over the weighted-average remaining vesting period of 1.2 years. The fair value of options that the Company assumed in connection with the acquisition of First Data were estimated using the Black-Scholes model with the following assumptions:

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| Expected life (in years) | 2.5 |
| Average risk-free interest rate | 1.9  | % |
| Expected volatility | 27.4  | % |
| Expected dividend yield | 0  | % |
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87
