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Columbia Law School's Blog on Corporations and the Capital Markets

Editorial Board John C. Coffee, Jr. Edward F. Greene Kathryn Judge

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Activist Investors

How Corporate Ownership Concentration Differs Down Under

By Tim Bowley August 14, 2026 by renholding

Institutional investors’ rising ownership of publicly traded shares and its implications for corporate governance have prompted scrutiny in both the United States and Australia. In the U.S., shares are increasingly in the hands of the Big Three index funds: BlackRock, …

Comment  

Cleary Gottlieb Discusses Supreme Court Ruling on Right of Action Under Investment Company Act

By Nowell D. Bamberger, Tom Bednar, John Mahon, Jennifer Kennedy Park and Rishi N. Zutshi July 2, 2026 by renholding

On June 11, 2026, the U.S. Supreme Court issued its ruling in FS Credit Opportunities Corp. v. Saba Capital Master Fund, Ltd., holding that Section 47(b) of the Investment Company Act (the ICA) does not provide an implied private …

Opening History’s Shareholder Activism Black Box

By Brian Cheffins May 14, 2026 by renholding

Though shareholder activism is a pivotally important corporate governance topic, historical analysis of shareholder engagement with publicly traded companies has generally been cursory.  In a recent paper I do much to correct matters for the United States in the first

…

Debevoise & Plimpton Discusses Activism in the Insurance Industry

By Eric Juergens, Matthew Kaplan, Marilyn Lion, Nicholas Potter and William Regner April 28, 2026 by renholding

Activism remains a persistent and increasingly important feature of the landscape for publicly traded insurance groups.

As we have discussed in prior Debevoise Updates, activist campaigns in recent years fall into two broad categories: institutional investors holding long-term positions and …

Are Boardroom Observers White Knights or Trojan Horses?

By Choonsik Lee and Maniraj Muthyala January 22, 2026 by renholding

When activist investors acquire large stakes in a company and seek influence, they traditionally push for seats on the board of directors. In recent years, however, many activists have instead appointed a non-voting observer who can attend board meetings, receive …

How Hedge Fund Activism Creates Value in Family Firms

By Heng An and Xu Niu January 7, 2026 by renholding

Hedge fund investors play an increasingly influential role in shaping corporate behavior, yet their broader economic and social effects remain the subject of debate. In a new paper, we examine how hedge fund activism operates in family-controlled firms, a common …

Rethinking Control in American Corporate Governance

By Dhruv Aggarwal and Ofer Eldar December 8, 2025 by renholding

American corporations have undergone a gradual but significant transformation. Founding chief executive officers (“founder-CEOs”) and activist hedge funds increasingly dominate their companies despite owning well short of a majority of shares. Founder-CEOs wield control through their personal brands or dual-class …

How Liquid Equity Rewards Can Enhance Shareholder Loyalty Amid Rising Activism

By Wulf Kaal December 3, 2025 by renholding

Shareholders have evolved from passive investors into active participants, often driving transformative agendas through activism. Proxy contests, in which investors seek to influence or seize board control, have proliferated, imposing substantial financial burdens on companies – estimated in the billions …

Why It’s Hard for Activists and Blockholders to Make a Difference in Banking  

By Hamid Mehran and Chester Spatt September 18, 2025 by renholding

Activist investors and blockholders are unable to restructure and turnaround poorly performing banks, making it unlikely that they can enhance bank performance and contribute to financial stability. We argue that regulation and supervision hinder the flow of information needed to …

Should Investors Care What Executives Think of Boards of Directors?

By Michael R. Levin July 16, 2025 by renholding

Each year numerous surveys, reports, and analyses assess boards of directors, or BoDs. One from PwC landed about the same time as another from SquareWell Partners in the past couple of months, inviting a comparison.

PwC has surveyed CEOs and …

Paul Weiss Discusses New Tailwinds for Activists

By Andrew D. Krause, James E. Langston and Carmen X. Lu April 1, 2025 by renholding

The recent market downturn driven by uncertainty on tariffs, domestic policy shifts and the changing geopolitical landscape will continue to create new opportunities for activists in 2025. We highlight below how activism may evolve in the coming months:

Market Volatility …

The Activist Investor Discusses “Voting No” on Directors

By Michael R. Levin February 13, 2025 by renholding

Let’s say upfront: voting “no” or withholding votes on directors is a relatively weak way to influence a portfolio company. We’re stubborn, so we prefer electing directors or amending bylaws. Binding acts work much better than non-binding, like opposing exec …

Why Activist Investors Are Rooting for Donald Trump

By Kai Liekefett and Derek Zaba November 4, 2024 by renholding

Year after year, the world’s activist-investor community meets at the Active-Passive Investor Summit, the premier shareholder activist conference in New York City, organized by research and advisory service 13D Monitor. Yet at this year’s gathering, on October 22, the mood …

Why Boards Should Think Twice Before Entering into Cooperation Agreements With Activists

By Jennifer O’Hare September 19, 2024 by renholding

In a typical activist campaign, the activist threatens to launch a proxy fight unless the board of directors agrees to take certain actions to increase shareholder value, such as selling off company assets or replacing the CEO. Increasingly, however, there …

The Corporate Contract and the Private Ordering of Shareholder Proposals

By Mohsen Manesh February 26, 2024 by renholding

Should Coca-Cola do more to protect abortion rights?[1] Should Mastercard track gun purchases?[2] Should Disney’s workplace DEI trainings be more sensitive to conservative perspectives?[3] More importantly, should an activist holding only a nominal stake in any of …

Wachtell Lipton Discusses How to Deal with Activist Investors

By Martin Lipton, Steven A. Rosenblum, Karessa L. Cain, Elina Tetelbaum, Carmen X. W. Lu and Anna Dimitrijević August 31, 2023 by renholding

Activism has fully rebounded from the brief pandemic dip, with the past eighteen months seeing increased activity.  As we have previously noted, regardless of industry, size or performance, no company is too large, too popular, too new or too successful …

1 Comment  

Contests Under Universal Proxy Rules Have Produced Mixed Results

By Sean Donahue, Eduardo Gallardo and Sahand Moarefy July 13, 2023 by renholding

There have been 12 proxy contests that have gone to a vote under the SEC’s universal proxy rules, which became effective on September 1, 2022. A review of these contests reveals several themes.

Overall Results: Activists obtained a board seat …

Can Shareholder Lawsuits Police Companies’ Climate Disclosures?

By Emily Strauss November 18, 2022 by renholding

In March 2022, the SEC proposed mandatory climate disclosures for public companies.[1]  While climate activist investors applauded the proposed rules, opponents lamented their scope and cost, arguing that the SEC lacks the authority to promulgate such rules. But the …

Proxy Tactics Are Changing: Can Advance Notice Bylaws Do What Poison Pills Cannot?

By John C. Coffee, Jr. October 19, 2022 by renholding

Military strategy and takeover strategy share a few things in common. At some point, generals and M&A lawyers each must recognize that the old technology no longer works as it did in the past and can no longer dominate the …

What the Language of Shareholder Stewardship Can Teach Us

By Dionysia Katelouzou July 13, 2022 by renholding

Stewardship has, along with sustainability, social equality, biodiversity, and climate risk management, emerged in recent years as a favorite buzzword in corporate governance and investment management circles. But the language used by investors to express stewardship objectives and practices varies …

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Each business day, our team sifts through blog posts, news stories, and other sources to keep up-to-date on relevant recent developments. The following links will take you to our recommended selections. To see the sources we follow click Filter Sources.

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Wall Street Journal
Google, Constellation Energy Strike Sweeping Nuclear-Power Deal
October 6, 2026
Dealbook
New Anthropic Challenger Emerges
October 6, 2026
Freshfields' A Fresh Take
FTC Settles Price Discrimination Lawsuit Against Southern Glazer’s
October 6, 2026
D&O Diary
Settlement Values of M&A Suits Drop
October 6, 2026
Deal Lawyers.com
Earnout Denied, Buyer Wins Damages
October 6, 2026
Reuters
New Contracts Help Boeing Turn Page
October 5, 2026
Wall Street Journal
Firms’ AI Outlay Impossible to Budget
October 5, 2026
Bloomberg
Colleges Cut Tuition Bills by $20,000
October 5, 2026
Financial Times
Reflection AI Boosts U.S. Aim to Compete With Chinese “Open” Models
October 5, 2026
D&O Diary
Ryde Hit With New Market Manipulation-Related Securities Lawsuit
October 5, 2026
Dealbook
Investors Bet on Brain-Computer Link
October 4, 2026
Financial Times
Wall Street’s IPO Fervor Cools
October 4, 2026
Deal Lawyers.com
FTC Tweaks HSR Second-Request Rule
October 4, 2026
Corporate & Securities Law Blog
Sixth Circuit Narrows Swap Definition, Nixes Sports-Betting Law Preemption
October 4, 2026
Business Law Prof Blog
What PSLRA Safe Harbor Really Means
October 4, 2026
Bloomberg
GOP Mum on Midterm Affordability
October 1, 2026
Reuters
M&A Deal Rush Fades in 3d Quarter
October 1, 2026
The Governance Beat
Tesla, Goldman Tout Retail Shareholder Voting Instruction Plans
October 1, 2026
Financial Times
Wachtell Hires Ex-SDNY U.S. Attorney
October 1, 2026
D&O Diary
New Caremark Decision Provides Good News About Bad Faith
October 1, 2026
Wall Street Journal
Walgreens Nears Sale of Britain’s Boots
September 30, 2026
The Governance Beat
BlackRock Issues 2026 Voting Report
September 30, 2026
Sidley Enhanced Scrutiny
Court: FCA’s Qui Tam Constitutional
September 30, 2026
D&O Diary
IPOs Up, SPAC Litigation Persists
September 30, 2026
Deal Lawyers.com
Delaware Supreme Court Backs Indemnity for Post-Closing Misconduct
September 30, 2026
Bloomberg
American, Alaska Air to Share Revenue
September 29, 2026
Wall Street Journal
Trump Defends Light-Touch AI Plan
September 29, 2026
Financial Times
Starbucks Cuts Green Goals, Costs
September 29, 2026
D&O Diary
Alphabet Board Hit with Privacy-Related Follow-On Derivative Suit
September 29, 2026
Deal Lawyers.com
Chancery Interprets “Change of Control” in Purchase Agreement
September 29, 2026
Bloomberg
IRS Threatens Crackdown on Array of Wall Street Tax Dodges
September 28, 2026
Dealbook
Safety Issues Could Derail AI IPOs
September 28, 2026
Financial Times
Weil in Crisis After Lawyer Departures
September 28, 2026
D&O Diary
Proxy Season 2026 Returns to Basics
September 28, 2026
Delaware Corporate & Commercial Litigation Blog
Chancery Explains Lawyer Fee Award
September 28, 2026
Bloomberg
Trump, Anthropic CEO to Meet
September 27, 2026
Wall Street Journal
NY Sues Prediction Market Polymarket
September 27, 2026
Dealbook
Clients Eye Cut of Law Firm AI Savings
September 27, 2026
Freshfields' A Fresh Take
Bank Agencies Offer Revamped Third-Party Risk Management Guidance
September 27, 2026
Financial Times
Companies Favor Cheaper “Open” AI
September 27, 2026
Wall Street Journal
MGM Resorts Eyes Diller’s People Inc.
September 24, 2026
Dealbook
AI Safety Concerns Go Global
September 24, 2026
Financial Times
PE Investment May Alter Lawyer Pay
September 24, 2026
Sidley Enhanced Scrutiny
Delaware Chancery Expands AI Focus from Individuals to Governance
September 24, 2026
Business Law Prof Blog
What AI Tells Us About Benefit Corps.
September 24, 2026
Bloomberg
Disney+ Price Jumps 13 Percent
September 23, 2026
Wall Street Journal
Meta’s New AI Agent Is Instant Hit
September 23, 2026
Securities Litigation & Enforcement
SEC, FDA Create Info-Sharing System
September 23, 2026
Financial Times
Private Equity Ending Up in Limbo
September 23, 2026
D&O Diary
AI-Related Securities Suits Surging
September 23, 2026
Wall Street Journal
Obamacare Enrollments Cut 760,000
September 22, 2026
Financial Times
Anthropic, OpenAI Offer Cheap Models
September 22, 2026
Cleary Securities Watch
SEC End to Pay-to-Play Rule May Not Pay Off for Investment Advisers
September 22, 2026
D&O Diary
Consumer Class Actions Claim Tariffs Wrongly Passed to Customers
September 22, 2026
Deal Lawyers.com
Delaware Chancery Addresses Earnout Provision’s “Procedural Checks”
September 22, 2026
Wall Street Journal
Polymarket’s Rush Enabled Fraud
September 21, 2026
Cooley M&A
Chancery Revives Verisk Deal
September 21, 2026
Financial Times
Settlement Clears Paramount-Warner
September 21, 2026
D&O Diary
Crypto Investors Suit Skirts Dismissal
September 21, 2026
Securities Regulation and Corporate Governance Monitor
SEC Plans to Nix Shareholder Proposal Rule, Change Proxy Solicitation
September 21, 2026
New York Times
Anthropic Goes Ahead With IPO Plans
September 20, 2026
Delaware Business Litigation Report
Chancery Nixes Caremark Action
September 20, 2026
Financial Times
How Big Tech Uses Guarantees to Keep AI Exposure Off Balance Sheet
September 20, 2026
Sidley Enhanced Scrutiny
When the Meeting Minutes and the AI Transcript Don’t Match
September 20, 2026
Corporate & Securities Law Blog
SEC Grants Review of Nasdaq Minimum Listed Securities Value Rule
September 20, 2026
Bloomberg
SEC to Interview Guggenheim Staff
September 17, 2026
Cleary M&A Watch
SEC Guides on Activist Fund Disclosure
September 17, 2026
Freshfields' A Fresh Take
California Enacts a Slew of AI Laws
September 17, 2026
Financial Times
Barclays Staff Slams Return-to-Work
September 17, 2026
Business Law Prof Blog
SEC 14a-8 Rescission Proposal Is Here
September 17, 2026
Cooley M&A
KKR to Pay $250mln for HSR Violation
September 16, 2026
Dealbook
Tech Hardware Is in Vogue Again
September 16, 2026
The Governance Beat
How Shareholder Proposals Fared Over Most Recent Proxy Season
September 16, 2026
Financial Times
Rifts Over Safety at Anthropic, OpenAI
September 16, 2026
Delaware Chancery Law Blog
Delaware Court Trims an Earnout Claim
September 16, 2026
Dealbook
AI Regulation Has Strange Bedfellows
September 15, 2026
D&O Diary
The CVS Case and the Emerging D&O Risks of AI-Driven Performance
September 15, 2026
Sidley Enhanced Scrutiny
Delaware Supreme Court Reverses on Justifiable Reliance in M&A Fraud Case
September 15, 2026
Delaware Business Litigation Report
Chancery Grants Spoliation Damages
September 15, 2026
The Guardian
Private Equity Facing Existential Crisis?
September 15, 2026
Wall Street Journal
Malls Are Real Estate’s Top Performer
September 14, 2026
Delaware Business Litigation Report
Chancery Rules in Mutual Deceit Case
September 14, 2026
The Governance Beat
12 Ways AI Affects Firm Disclosure
September 14, 2026
Financial Times
Warsh and Trump on Collision Course
September 14, 2026
D&O Diary
Eighth Circuit Nixes D&O Coverage of Execs’ Personal Loan Guarantees
September 14, 2026
Bloomberg
Anthropic’s AI Warning Is Too Weak
September 13, 2026
Dealbook
A Start-Up Pay Strategy Proves Costly
September 13, 2026
The Governance Beat
Glass Lewis Outlines New Framework
September 13, 2026
Financial Times
Musk, Altman Also Back AI Slowdown
September 13, 2026
D&O Diary
Turns Out FCA Qui Tam Constitutional
September 13, 2026
Wall Street Journal
Crypto Scam Victims Are Fighting the U.S. to Get Their Money Back
September 10, 2026
Delaware Business Litigation Report
Delaware Supreme Court Affirms Arbitration Order in Earnout Dispute
September 10, 2026
Financial Times
Tariff Criticism Dooms IMF Candidate
September 10, 2026
Sidley Enhanced Scrutiny
Chancery Confirms No Best-Price Duty for Public-Benefit Corp. Board
September 10, 2026
D&O Diary
Shareholders Suit Against Apple Follows AI-Linked Copyright Claim
September 10, 2026
Bloomberg
DOJ Says Berkeley Law Discriminates
September 9, 2026
D&O Diary
Is Bank Failure Uptick a Big Deal?
September 9, 2026
Deal Lawyers.com
Designated Directors Walk a Tightrope
September 9, 2026
Corporate & Securities Law Blog
SEC Remakes Transfer Agent Rules
September 9, 2026
Business Law Prof Blog
How IPOs Stack Up So Far in 2026
September 9, 2026
Wall Street Journal
Trump Says He Will Block Canadian Firms From Government Contracts
September 8, 2026
Freshfields' A Fresh Take
9th Circuit in Prediction Markets Split
September 8, 2026
Financial Times
LIV Golf Files for Bankruptcy
September 8, 2026
Cleary Securities Watch
SEC Updates CFI Guidance
September 8, 2026
Business Law Prof Blog
Reincorporations Can Be Costly
September 8, 2026
Financial Times
University Endowments Beat S&P 500
September 7, 2026
Sidley Enhanced Scrutiny
DGCL §144 Safe Harbor Rules Emerge
September 7, 2026
Delaware Corporate & Commercial Litigation Blog
Allegedly Excessive Fees No Defense to Nonpayment of Advance
September 7, 2026
Bloomberg
Delaware Practical Pluses Run Deep
September 7, 2026
Business Law Prof Blog
The Latest on Reincorporations
September 7, 2026
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  • Business Law Prof Blog
  • Corporate & Securities Law Blog
  • DealLawyers
  • Delaware Corporate and Commercial Litigation Blog
  • Gibson Dunn Securities Regulation and Corporate Governance Monitor
  • Harvard Law School Forum on Corporate Governance
  • How Appealing
  • PubCo @ Cooley
  • Securities Docket
  • Sidley Enhanced Scrutiny Blog
  • The D&O Diary
  • Truth on the Market
  • White Collar Crime Prof Blog
The Blue Sky Blog is Sponsored by Columbia Law School's Center on Corporate Governance.
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