Publications

February 2025
Supplement

Align Partners and SM Entertainment: Korean Shareholder Activism Meets K-Pop (B)

By: Charles C.Y. Wang and Billy Chan

Supplements the (A) case, HBS No. 125-065. For years, institutional investors had experienced very limited success in influencing the management of listed companies through shareholder activist campaigns in Korea. The common practice of circular ownership and public... View Details

Keywords: Financial Reporting; Public Equity; Stocks; Investment Activism; Music Entertainment; Corporate Governance; Success; Business and Shareholder Relations; Entertainment and Recreation Industry; South Korea

04 Jun 2010
News

Another View: Can Biotech Survive Icahn?

08 Oct 2014
News

Break-Up Trend Trumps Consolidation in Search for Value

04 Dec 2010
News

Gregg Steinhafel has faced up to many challenges as Target CEO

December 2011 (Revised September 2015)
Case

Carl Icahn and Clorox

By: Jay W. Lorsch and Kathleen Durante

This case outlines the takeover attempt by activist investor, Carl Icahn, for the Clorox Company. The board of the company repeatedly rejected Icahn's offers as inadequate. He made three bids over the course of three months. View Details

Keywords: Investment Activism; Governing and Advisory Boards

12 Jul 2016
News

The Fastest-Growing Cause for Shareholders Is Sustainability

09 Aug 2013
News

Beyond Ackman, JCP Fights for Survival

2016
Working Paper

Consequences to Directors of Shareholder Activism

By: Ian D. Gow, Sa-Pyung Sean Shin and Suraj Srinivasan

Using a comprehensive sample for 2004–2012, we examine the impact of shareholder activist campaigns on the careers of directors of targeted firms. We find that activism is associated with directors being almost twice as likely to leave—and performance-sensitivity of... View Details

Keywords: Shareholder Activism; Hedge Funds; Independent Directors; Director Reputation; Accountability; Shareholder Voting; Voting; Retention; Investment Funds; Management Teams; Investment Activism

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2007
Working Paper

Hedge Fund Investor Activism and Takeovers

By: Robin Greenwood and Michael Schor

We examine long-horizon stock returns around hedge fund activism in a comprehensive sample of 13D filings by portfolio investors between 1993 and 2006. Abnormal returns surrounding investor activism are high for the subset of targets that are... View Details

Keywords: Mergers and Acquisitions; Private Equity; Investment Return; Investment Activism; Investment Portfolio; Corporate Governance

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13 May 2020
Video

Cas Coovadia

Cas Coovadia, the long-running Managing Director of the Banking Association South Africa, discusses his transition from being a political activist opposing banks during the era of apartheid, into a strong... View Details

14 Jul 2023
Blog Post

Building a Culture of Awareness and Accountability in your Organization

For Danika Manso-Brown (HGSE ’18), the life of an activist was one she was born into and one she has made her own. “My parents met organizing a labor union, so the work of creating justice and thinking about humanity was a central part of... View Details

Keywords: All Industries

2018
Working Paper

Hot or Not? What Makes Product Categories Attractive to Fair Trade and Eco-labeling Organizations

By: Kristin Sippl

This paper probes extant theory on product diversification in the empirical realm of fair trade and eco-labeling organizations (i.e., certification organizations). While much is known about diversification in for-profit firms, less is known about the more complex... View Details

Keywords: Hybrid Organizations; Fair Trade; Eco-labeling; Goods and Commodities; Diversification; Strategy

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January 2020 (Revised April 2020)
Case

Fossil Fuel Divestment (Abridged)

By: Michael W. Toffel and Sarah Gulick

The president of Harvard University is facing growing pressure from students, alumni, and other climate change activists that are urging the university to divest its multi-billion dollar endowment from fossil fuel companies. The case summarizes the arguments for and... View Details

Keywords: Divestment; Harvard University; Higher Education; Corporate Social Responsibility and Impact; Environmental Sustainability; Climate Change; Public Opinion; Ethics; Education Industry

September 2010 (Revised February 2013)
Background Note

The Cage-Free Egg Movement

By: Michael W. Toffel and Stephanie van Sice

Describes the social movement confronting conventional egg production techniques (battery cages) based on animal welfare concerns, and some merits and drawbacks of cage-free alternatives. Highlights animal rights activist campaigns, political and regulatory responses,... View Details

Keywords: Animal-Based Agribusiness; Governing Rules, Regulations, and Reforms; Rights; Supply Chain Management; Natural Environment; Social Issues; Competitive Strategy; Agriculture and Agribusiness Industry

November 2006 (Revised July 2021)
Case

Kerr-McGee

By: Robin Greenwood and André Perold

Activist investors Carl Icahn and Barry Rosenstein acquire a stake in Oklahoma-based company Kerr-McGee. They demand two board seats and ask the company to make several operational and financial changes, including the repurchase of equity and divestiture of their... View Details

Keywords: Investment Activism; Restructuring; Equity; Investment; Management; Governance Controls; Corporate Strategy; Chemical Industry; Energy Industry; United States

Person Page

Presentations and Government Testimony

By: Robin Greenwood

Activist Investors

Prepared testimony before the Subcommittee on Railroads, Pipelines, and Hazardous Materials; Committee on Transportation and Infrastructure; US House of... View Details

2007
Other Unpublished Work

Hedge Fund Investor Activism and Takeovers

By: Robin Greenwood and Michael Schor

We examine long-horizon stock returns around hedge fund activism in a comprehensive sample of 13D filings by portfolio investors between 1993 and 2006. Abnormal returns surrounding investor activism are high for the subset of targets that are acquired ex-post, but not... View Details

Keywords: Mergers and Acquisitions; Private Equity; Investment Return; Investment Activism; Investment Portfolio; Corporate Governance