Shareholder activism

Shareholder activism is a method where people who own stock in a corporation use their equity stakes to influence company management. This process allows investors to exert pressure on leadership to achieve specific goals. These goals can be financial, such as increasing shareholder value through cost cutting or policy changes. They can also be non-financial, such as demanding disinvestment from certain countries. Activism often addresses the principal-agent problem. This occurs when the agents, or managers, do not act according to the wishes of the principals, who are the investors.

Activists use several different mechanisms to reach their objectives. One common method is a proxy battle, where shareholders vote to change the board of directors. They may also use shareholder resolutions or engage in direct negotiations with management. Some activists use litigation, which involves taking legal action against the corporation. Others launch publicity campaigns using websites or social media to spread their message. Even a small stake of less than 10% of outstanding shares can sometimes launch a successful campaign. This is often much less costly than a full takeover bid.

There are two primary categories of these actions: offensive and defensive. Defensive activism involves an existing shareholder trying to correct a specific deficiency within a company. Offensive activism occurs when an investor builds a position with the intent to agitate for change. These campaigns can take different forms depending on the investor's strategy. Some activists, like Daniel Loeb of Third Point Management, are known for writing sharp letters to CEOs. Others, like the hedge fund Engine No. 1, focus on specific environmental goals. In 2021, Engine No. 1 won three seats on the Exxon board to reduce fossil fuel reliance.

The history of corporate ownership and influence has changed significantly over time. In the 1790s, the United States had only 300 corporations. By the 1860s, that number grew by about 26,000. Between 1900 and 1950, there were roughly 1.22 offensive activist initiatives every year. During the 1980s, a style known as corporate raiding emerged. Investors like Carl Icahn and T. Boone Pickens gained notoriety during this era. They were often seen as aggressive for forcing companies to take action or buying back investments at a premium.

In the 21st century, the landscape of activism has shifted toward institutional and hedge fund involvement. Hedge funds often take concentrated positions in public corporations to engage with managers. By the 2010s, activism began to expand globally from the US and Europe into Asia. In fact, activism in Asia quickly surpassed the amount seen in Europe. Research shows that activism affects many business transactions. A 2015 survey found that 60% of corporate development leaders saw activism affecting industry transactions.

Specific rules and voting methods also shape how activism works. In the United States, investors must file a Schedule 13D if they acquire over 5% ownership to influence leadership. There are also different ways to vote for a board. In straight voting, shareholders get one vote per share on every question. In cumulative voting, shareholders can cast all their votes for a single candidate. This makes it easier for minority shareholders to win seats. Since 2015, proxy access rules have spread, and by 2018, 71% of S&P 500 companies had such rules.

Data shows that activism is a significant part of the modern global economy. In the first half of 2025, the most targeted sectors were Industrials at 22%, Technology at 20%, and Healthcare at 12%. Activism is also highly regional. For example, Industrials were most targeted in the APAC region, while Technology was most targeted in the US. Some research suggests these strategies can be very effective. A 2012 study found that many activist-focused hedge funds outperformed the MSCI World Index after the 2008 financial crisis. In 2013, activist funds earned average returns of 16.6%, compared to 9.5% for the wider hedge fund industry.