Common use of Performance Adjustment Clause in Contracts

Performance Adjustment. The number of Target PSUs awarded under this Award Agreement shall be adjusted, within a range of [•]% to [•]% of the number of Target PSUs, after the end of the Performance Period based on the achievement of the [•] and, if applicable, [•] performance metrics (collectively, the “Performance Metrics”) set forth in Appendix 1 hereto. Following the end of the Initial Performance Period and, if applicable, the Extended Performance Period, management of MSCI shall provide its calculation of the Performance Metrics to the Committee. The Committee will review the extent of the achievement of the Performance Metrics and shall certify in writing such achievement. The number of PSUs that will be converted into Shares pursuant to Section 2(b), Section 4 or Section 5 (the “Adjusted PSUs”) will be determined based on the following formula on a date no later than [•] (such date, the “Adjustment Date”): Target PSUs x Adjustment Percentage (as defined in Appendix 1) = Number of Adjusted PSUs

Performance Adjustment. The number of Target PSUs awarded under this Award Agreement shall be adjusted, within a range of [•]% to [•]% of the number of Target PSUs, after the end of the Performance Period based on the achievement of the [•] and, if applicable, [•] performance metrics (collectively, the “Performance Metrics”) set forth in Appendix 1 hereto. Following the end of the Initial Performance Period and, if applicable, the Extended Performance Period, management of MSCI shall provide its calculation of the Performance Metrics to the Committee. The Committee will review the extent of the achievement of the Performance Metrics and shall certify in writing such achievement. The Subject to Section 8, the number of PSUs that will be converted into Shares pursuant to Section 2(b), Section 4 or Section 5 (the “Adjusted PSUs”) will be determined based on the following formula on a date no later than [•] (such date, the “Adjustment Date”): Target PSUs x Adjustment Percentage (as defined in Appendix 1) = Number of Adjusted PSUs

Performance Adjustment. The number of Target PSUs awarded under this Award Agreement shall be adjusted, within a range of [•]% ●]% to [•]% ●]% of the number of Target PSUs, after the end of the Performance Period based on the achievement of the [•●] and, if applicable, [•●] performance metrics (collectively, the “Performance Metrics”) set forth in Appendix 1 hereto. Following the end of the Initial Performance Period and, if applicable, the Extended Performance Period, management of MSCI shall provide its calculation of the Performance Metrics to the Committee. The Committee will review the extent of the achievement of the Performance Metrics and shall certify in writing such achievement. The Subject to Section 8, the number of PSUs that will be converted into Shares pursuant to Section 2(b), Section 4 or Section 5 (the “Adjusted PSUs”) will be determined based on the following formula on a date no later than [•●] (such date, the “Adjustment Date”): Target PSUs x × Adjustment Percentage (as defined in Appendix 1) = Number of Adjusted PSUs

Performance Adjustment. The number of Target PSUs awarded under this Award Agreement shall be adjusted, within a range of [•]% ●]% to [•]% ●]% of the number of Target PSUs, after the end of the Performance Period based on the achievement of the [•●] and, if applicable, [•●] performance metrics (collectively, the “Performance Metrics”) set forth in Appendix 1 hereto. Following the end of the Initial Performance Period and, if applicable, the Extended Performance Period, management of MSCI shall provide its calculation of the Performance Metrics to the Committee. The Committee will review the extent of the achievement of the Performance Metrics and shall certify in writing such achievement. The number of PSUs that will be converted into Shares pursuant to Section 2(b), Section 4 or Section 5 (the “Adjusted PSUs”) will be determined based on the following formula on a date no later than [•●] (such date, the “Adjustment Date”): Target PSUs x Adjustment Percentage (as defined in Appendix 1) = Number of Adjusted PSUs):

Performance Adjustment. The number of Target PSUs awarded under this Award Agreement shall be adjusted, within a range of [•]% ●]% to [•]% ●]% of the number of Target PSUs, after the end of the Performance Period based on the achievement of the [•●] and, if applicable, [•●] performance metrics (collectively, the “Performance Metrics”) set forth in Appendix 1 hereto. Following the end of the Initial Performance Period and, if applicable, the Extended Performance Period, management of MSCI shall provide its calculation of the Performance Metrics to the Committee. The Committee will review the extent of the achievement of the Performance Metrics and shall certify in writing such achievement. The number of PSUs that will be converted into Shares pursuant to Section 2(b), Section 4 or Section 5 (the “Adjusted PSUs”) will be determined based on the following formula on a date no later than [•●] (such date, the “Adjustment Date”): Target PSUs x × Adjustment Percentage (as defined in Appendix 1) = Number of Adjusted PSUs

Performance Adjustment. The number of Target PSUs awarded under this Award Agreement shall be adjusted, within a range of [•]% •] to [•]% •] of the number of Target PSUs, after the end of the Performance Period based on the achievement of the [•] and, if applicable, [•] performance metrics (collectively, the “Performance Metrics”) set forth in Appendix 1 hereto. Following the end of the Initial Performance Period and, if applicable, the Extended Performance Period, management of MSCI shall provide its calculation of the Performance Metrics to the Committee. The Committee will review the extent of the achievement of the Performance Metrics and shall certify in writing such achievement. The number of PSUs that will be converted into Shares pursuant to Section 2(b), Section 4 or Section 5 (the “Adjusted PSUs”) will be determined based on the following formula on a date no later than [•] (such date, the “Adjustment Date”): Target PSUs x Adjustment Percentage (as defined in Appendix 1) = Number of Adjusted PSUs):