MSCI Inc. Officer Files Form 144 to Sell $1.48M in Common Stock

Executive Summary

On October 22, 2026, Robert J. Gutowski, an Officer of MSCI Inc. ($MSCI), filed a Form 144 proposing the sale of 2,381 shares of common stock through Morgan Stanley Smith Barney LLC. The aggregate market value of the proposed transaction is $1,484,933.98, representing an approximate price of $623.66 per share.

Transaction Details

• Security: Common Stock
• Shares to be Sold: 2,381
• Aggregate Market Value: $1,484,933.98
• Shares Outstanding: 71,500,000
• Percentage of Outstanding: ~0.003%
• Approximate Sale Date: October 22, 2026
• Nature of Acquisition: The shares to be sold originated from performance share awards granted by the issuer:
  • 1,193 shares acquired on February 4, 2021
  • 300 shares acquired on February 5, 2024
  • 888 shares acquired on February 6, 2025

Prior Trading Activity

The filer reported no securities sold in the past three months preceding this notice.

Market Significance

This filing represents a routine liquidation of vested performance share awards. Given the small transaction size relative to MSCI's 71.5 million shares outstanding (~0.003%), the market significance is assessed as Low and is unlikely to exert meaningful downward pressure on share price.