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Shareholder Litigation Involving
Mergers and Acquisitions

Review of 2012 M&A Litigation | Settlements |
Plaintiff Attorney Fees | New Lawsuits Challenging Annual Proxies

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Robert M. Daines
Stanford Law School

Olga Koumrian

February 2013 Update

marginPlaintiff law firms continued to challenge nearly all large U.S. merger and acquisition deals in 2012. These plaintiff law firms filed lawsuits on behalf of shareholders in 96 percent of M&A deals valued over $500 million and 93 percent of transactions valued over $100 million, according to Shareholder Litigation Involving Mergers and Acquisitions by Olga Koumrian, a principal of Cornerstone Research, and Professor Robert Daines of the Stanford Law School. In addition, deals valued at over $500 million averaged more than 5 lawsuits per deal.

margin“It is not plausible to think that 96 percent of target boards did a bad job selling the firm. Plaintiffs must be filing on cases where there is no underlying problem,” said Professor Daines. “The question is whether we can tell the good cases from the bad ones and whether the threat of a lawsuit produces any benefits for shareholders.”


2007 2008 2009 2010 2011 2012
Number of lawsuits 297 201 257 558 504 429
Percentage of deals litigated 53% 72% 92% 95% 96% 96%
Average number of lawsuits per deal 2.9 4.2 5.2 5.4 6.1 5.4

© 2013 Cornerstone Research. All rights reserved.

marginPlaintiff law firms often announced their investigations within hours of the merger announcement and filed lawsuits an average of 14 days after the announcement. Most (more than 60 percent) of these cases settled. The average time between lawsuit filing and settlement was 42 days. In more than 80 percent of settlements the only relief to shareholders was additional disclosures. In settlements related to the 2012 deals, the average agreed-upon plaintiff attorney fee was $725,000. In disclosure-only settlements, the average requested fees declined for the third consecutive year to $540,000.

marginThe report’s authors found that several factors had influenced the amount of plaintiff attorney fees awarded by the Delaware Court of Chancery: the size of the settlement fund, other monetary benefits to shareholders, the number of suits filed, the time to settlement, and the overall deal value.

marginTwo of the largest M&A settlements of the last decade were reached during 2012: $110 million in the El Paso Corp./Kinder Morgan Inc. deal and $49 million in the acquisition of Delphi Financial Group, Inc. by Tokio Marine Holdings, Inc. Both of these settlements involved allegations of significant conflicts of interest—a typical allegation in most of the lawsuits that resulted in large settlements.

marginIn a new category of lawsuits modeled after M&A litigation, plaintiff attorneys challenged the compensation disclosures included in annual proxy statements. In these cases, they asked judges to halt upcoming shareholder votes unless additional disclosures were made by the companies involved in the transactions. At least 25 of these lawsuits were filed last year, and in the last 2 months of 2012 plaintiff law firms announced investigations of 33 more companies.

margin The full text of the report is available: Shareholder Litigation Involving Mergers and Acquisitions.

About Cornerstone Research

marginFor more than 25 years, Cornerstone Research staff have provided economic and financial analysis in all phases of commercial litigation and regulatory proceedings.

marginWe work with a broad network of testifying experts, including faculty and industry practitioners, in a distinctive collaboration. Our staff consultants contribute expertise in economics, finance, accounting, and marketing, as well as business acumen, familiarity with the litigation process, and a commitment to produce outstanding results. The experts with whom we work bring the specialized expertise of researchers or practitioners required to meet the demands of each assignment.

marginCornerstone Research has more than 450 staff and offices in Boston, Chicago, Los Angeles, Menlo Park, New York, San Francisco, and Washington.

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Revised: February 28, 2013 TAF

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