The U.S. Securities and Exchange Commission has long required that public companies post the annual compensation of their top executives in their proxies. In 2015, the SEC ruled that public corporations had to show how much their CEOs made in relationship with the median salary of their firm’s workers. The rule went into effect in 2017. The decision was part of the larger Dodd-Frank Act, which Congress passed as a sweeping reform of the federal’s governments financial regulations.

Using artificial intelligence and machine learning, MyLogIQ provides information about public companies. The firm has provided data exclusively to 24/7 Wall St. that covers CEO pay ratios from 294 public companies that have released their 2020 proxies. CEO compensation included salary, bonuses, stock awards, stock options, long-term incentives, short-term incentives and changes in pension values, all of which are required to be broken out by SEC rules.

The person who had the highest ratio of pay to the median compensation of his company’s employees was Michael F. Roman, the board chair and chief executive officer of 3M. His ratio was an extraordinary 308 to 1. In the 3M proxy, the company reported, “[W]e selected the median employee from among 96,902 full-time, part-time, temporary and seasonal workers who were employed as of December 31, 2020.”