Publications

September 2015 (Revised February 2016)
Case

Novell (A): When an Activist Hedge Fund Came Calling on the Board

By: Richard L. Nolan

No corporation and its board of directors is immune to a disruptive shareholder activist attack. The Novell (A) and (B) cases take students through a shareholder activist attack and its aftermath—a saga that spanned 5 years. The cases outline the activist playbook in... View Details

Keywords: Investment Activism

June 2025
Supplement

Vail Resorts: Responding to Activist Pressure (A)

By: Benjamin C. Esty

March 2018
Case

Sachem Head's Activism at Autodesk

By: Suraj Srinivasan and Quinn Pitcher

In 2015, activist hedge fund Sachem Head Capital, led by founder Scott Ferguson, launched an activist campaign at computer aided design (CAD) software maker Autodesk. The activist campaign, waged mainly in private, was over Autodesk's lackluster financial performance,... View Details

Keywords: Shareholder Activism; Investing; Activist Investing; Technology; CEO Turnover; Hedge Fund Activism; Benchmarking; Corporate Governance; Information Technology; Investment Activism; Performance Improvement; Management Succession; United States

March 2017
Supplement

eBay vs. Carl Icahn, 2014: Interview with John Donahoe, eBay CEO 2008-2015

By: David B. Yoffie, Eric Baldwin and Tom Ryder

This video, a supplement to HBS Case No. 717-417, features an interview with former eBay CEO John Donahoe, providing his perspective on eBay's response to activist investor Carl Icahn's attack on eBay, which began in January 2014. After giving some of his own... View Details

Keywords: Activist Shareholder; Activist Investors; Technology; Strategy; Corporate Strategy; Investment Activism; Financial Services Industry; Retail Industry; Technology Industry

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June 2025
Supplement

Vail Resorts: Responding to Activist Pressure (B)

By: Benjamin C. Esty and Edward A. Meyer

Supplement to the (A) case, 225-082. View Details

20 May 2019
Research & Ideas

Activist CEOs Are Rising Up—and Their Customers Are Listening

When former Starbucks CEO Howard Schultz announced earlier this year he was thinking about running for president of the United States, it wasn’t a new idea. Past CEOs seeking the White House have included Carly Fiorina, Ross Perot, Herman Cain, Steve Forbes, Mitt... View Details

Keywords: by Michael Blanding

August 2008 (Revised May 2009)
Case

Kmart and ESL Investments (A)

By: Stuart C. Gilson and Sarah Abbott

A major bankrupt retailer is poised to emerge from Chapter 11. Two activist hedge funds ("vulture investors") will own over 50% of reorganized Kmart's common stock, based on prior investments in Kmart's debt claims, and an infusion of new equity financing. The Chapter... View Details

Keywords: Restructuring; Capital Structure; Insolvency and Bankruptcy; Investment; Investment Activism; Valuation; Financial Services Industry; Retail Industry; United States

December 2016
Article

Through the Mud or in the Boardroom: Examining Activist Types and Their Strategies in Targeting Firms for Social Change

By: Charles Eesley, K. A. DeCelles and Michael Lenox

We examine the variety of activist groups and their tactics in demanding firms’ social change. While extant work does not usually distinguish among activist types or their variety of tactics, we show that different activists (e.g., social movement organizations vs.... View Details

Keywords: Negotiation Tactics; Investment Activism

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16 Feb 2023
HBS Case

ESG Activists Met the Moment at ExxonMobil, But Did They Succeed?

The impact-investment hedge fund Engine No. 1 made a big splash in May 2021 when it managed to get three nominees elected to the ExxonMobil board of directors. It was an open effort to prod the oil giant toward renewable energy and test whether View Details

Keywords: by Lane Lambert; Financial Services

July 2015 (Revised March 2021)
Case

Proxy Contest at DuPont

By: Jay W. Lorsch and Emily McTague

On January 9, 2015, Nelson Peltz of Trian Fund Management launched a proxy fight for four out of the twelve seats on the DuPont board. The fund had previously published a public letter addressed to shareholders outlining its proposal to break the company into three... View Details

Keywords: Board Of Directors; Hedge Fund; Activist Investing; Activist Investors; Proxy Fight; Corporate Governance; Governing and Advisory Boards; Investment Activism; Chemical Industry; United States

September 2023 (Revised January 2024)
Case

Icahn Enterprises: Ponzi Scheme or Sound Investment

By: Aiyesha Dey, Jonas Heese and James Weber

Icahn Enterprises, a publicly traded limited partnership founded and operated by famed activist investor Carl Icahn, had earned above market returns for over a decade. Between 2018 and early 2023, it had a compound annual return of 31%. Icahn invested in undervalued... View Details

Keywords: Stock Shares; Investment Return; Business Model; Valuation; Financial Services Industry

October 2016 (Revised October 2017)
Case

Misaki Capital and Sangetsu Corporation

By: Ian Gow, Charles C.Y. Wang, Naoko Jinjo and Nobuo Sato

Japan’s corporate culture has traditionally prioritized the interests of stakeholders such as customers, employees, and suppliers over those of shareholders. After a decades-long economic slump, Japan’s government has revitalized efforts to improve corporate governance... View Details

Keywords: Activist Investing; Constructivist Investing; Japan; Valuation; Stock Screens; Return On Equity; Investment; Business and Stakeholder Relations; Corporate Governance; Financial Strategy; Business and Shareholder Relations; Japan

August 2016 (Revised May 2017)
Case

eBay vs. Carl Icahn, 2014

By: David B. Yoffie and Eric Baldwin

This case explores Carl Icahn's attack on eBay, starting in January 2014. The case examines how John Donahoe, CEO of eBay, should respond to Icahn's demand that eBay spin off PayPal and accept Icahn's two nominees to the board of directors. View Details

Keywords: Activist Shareholder; Activist Investors; Technology; Strategy; Corporate Strategy; Investment Activism; Financial Services Industry; Retail Industry

22 Apr 2024
Research & Ideas

When Does Impact Investing Make the Biggest Impact?

The idea of supporting social change has propelled impact investing assets to more than $1 trillion. But what if those funds aren’t as impactful as investors expect? Recent Harvard Business School research indicates that while impact... View Details

Keywords: by Rachel Layne

Web

Alternative Investments Course | HBS Online

Alpha, and the World of Hedge Funds Going to Extremes: Activist Investing at TCI Arbitrage and Global Macro Quantitative Hedge Fund Investing Putting It All Together -... View Details

Research Summary

Profitable Souls: Foreign Investment and the Fate of Human Rights

By: Debora L. Spar

This is a project about foreign investment, about what happens when big multinational firms invest in small, poor, and often nasty places. Typically, most observers assume that this is a largely negative relationship: that multinationals exploit the local population,... View Details

Web

Sustainable Investing - Course Catalog

HBS Course Catalog Sustainable Investing Course Number 1495 Senior Lecturer Vikram Gandhi Professor Shawn Cole Spring; Q4; 1.5 credits Paper/project The course won the 2021 Teaching Recognition Award for Excellence in Sustainable Finance... View Details

2017
Working Paper

Why and How Investors Use ESG Information: Evidence from a Global Survey

By: Georgios Serafeim

Using survey data from a sample of senior investment professionals from mainstream (i.e., not SRI funds) investment organizations, we provide insights into why and how investors use reported environmental, social, and governance (ESG) information. The primary reason... View Details

Keywords: Investment Management; Sustainability; ESG; ESG (Environmental, Social, Governance) Performance; Investment Fund; Investment Strategy; Corporate Accountability; Activist Shareholder; Engagement; Environment; Climate Change; Customers; Customer Satisfaction; Employee Engagement; Global Warming; Investment; Decision Making; Environmental Sustainability; Performance Expectations