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  • John C. Coffee, Jr.: Event Contracts and Prediction Markets Comment bubble 3 By John C. Coffee, Jr.
  • Leveraging Information Forcing in Good Faith By Hillary Sale
  • The Dark Side of Safe Harbors Comment bubble 2 By Susan C. Morse
  • John C. Coffee, Jr. – Mass Torts and Corporate Strategies: What Will the Courts Allow? By John C. Coffee, Jr.
  • Compliance’s Next Challenge: Polarization By Miriam H. Baer
  • Will the Common Good Guys Come to the Shootout in SEC v. Jarkesy? And Why It Matters By Eric W. Orts
  • Climate Disclosure Line-Drawing and Securities Regulation By Virginia Harper Ho
  • Board Committee Charters and ESG Accountability By Lisa M. Fairfax
Editor-At-Large Reynolds Holding

The CLS Blue Lion logo Sky Blog

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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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hostile takeover

Poison Pills in the Shadow of the Law

By Martijn Cremers, Lubomir Litov, Simone M. Sepe and Michal Zator March 23, 2023 by renholding

Poison pills are one of the most powerful deterrents to hostile takeovers, making a takeover so unattractive and expensive that a potential acquirer declines to pursue it. A pill typically works by triggering the issuance of new shares to “old” …

Why the Poison Pill Is Still Relevant After All These Years – Even in Japan  

By Curtis J. Milhaupt and Zenichi Shishido February 23, 2023 by renholding

More than 40 years after its invention by lawyer Martin Lipton, the poison pill remains the subject of important judicial decisions and academic debate over corporate governance questions, in both the United States, its country of origin, and Japan, its …

Extreme Times, Extreme Measures: Pandemic-Resistant Corporate Law

By Luca Enriques May 5, 2020 by renholding

These are exceptional times, and policymakers are taking exceptional measures in public health, public finance, monetary policy, and public law. Among the latter, of great relevance to corporate governance are the rules broadening governments’ powers to authorize large share block …

Davis Polk Discusses Whether Companies Should Play Strong Defense in Hostile Times

By William Aaronson, Neil Barr, Louis Goldberg and Darren Schweiger March 30, 2020 by renholding

Extreme dislocation and a major sell-off in global equity markets have led to many public companies finding their stock prices at severely depressed levels, often over 50% off last twelve month highs.

While most companies and investors are in crisis …

Gibson Dunn Discusses Delaware Chancery Decision on Advance Notice Bylaws

By Eduardo Gallardo, Adam H. Offenhartz and Aric H. Wu August 19, 2019 by renholding

In an important transcript ruling issued on August 14,[1] the Delaware Court of Chancery upheld the validity and vitality of advance notice bylaw provisions, which govern the timing and disclosure requirements of stockholder nominations of board candidates.  The ruling …

Paul Weiss Offers M&A at a Glance for May 2018

By Matthew W. Abbott, Scott A. Barshay, Angelo Bonvino, Ariel J. Deckelbaum, Jeffrey D. Marell and Taurie M. Zeitzer June 18, 2018 by renholding

M&A activity in May 2018 generally weakened from the prior month. The total number of deals decreased in the U.S. by 1.2% to 667 (the second-lowest level in the last 12-month period) and globally by 4.8% to 2,759 (the lowest …

Hedge Funds’ Short-Term Thinking: Does It Matter for Merger Payments?

By Ning Gao, Olga Kolokolova and Achim Mattes April 24, 2018 by renholding

In 2010, Roger Carr, then-chairman of British confectionery Cadbury, waged a grueling five-month battle before losing control of the company to Kraft Foods.  “At the end of the day,” he said, “there were simply not enough shareholders prepared to take …

The Lessons of DuPont: Corporate Governance For Dummies

By John C. Coffee, Jr. June 1, 2015 by ilyabeylin

Among practitioners, it is a customary cliché to say that all proxy contests—just like all trials—are unique and idiosyncratic. There is some truth to that easy generalization, but it also misses the forest for the trees. Some obvious truths stand …

Wachtell Lipton explains Some Lessons from DuPont-Trian

By Martin Lipton April 29, 2015 by ilyabeylin

The ISS Report on the DuPont-Trian proxy contest calls attention to a number of important insights into ISS policies and practices and those of many of its institutional investor clients.  Concomitantly, these policies illustrate the realities of the sharp increase …

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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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New York Times
States Sue to Block Paramount-Warner
July 13, 2026
The Governance Beat
Pharma Firms Ready to Go Semi-Annual
July 13, 2026
Financial Times
Suit Over Tylenol-Autism Link Revived
July 13, 2026
D&O Diary
AI-Related Securities Suits Evolving
July 13, 2026
Sidley Enhanced Scrutiny
Delaware Chancery Draws a Line on Release Conditions in M&A
July 13, 2026
Bloomberg
Trump Embraces Australian Retirement System Backed by Larry Fink
July 12, 2026
Delaware Business Litigation Report
Delaware Supreme Court Clarifies Distinction Between Void and Voidable
July 12, 2026
Freshfields' A Fresh Take
Federal Regulators Propose New Rules for Payment Stablecoin Issuers
July 12, 2026
Financial Times
Big Tech to Face Big EU Fines for Consumer Protection Failures
July 12, 2026
Business Law Prof Blog
How Comment Letters Stack Up on SEC Semi-Annual Reporting Rule
July 12, 2026
Wall Street Journal
Netflix Exploring Live TV, Bundles
July 9, 2026
Bloomberg
Goldman Bans Staff From Prediction-Market Bets on Finance, War
July 9, 2026
Cleary Securities Watch
SEC Issues 2026 Rulemaking Agenda
July 9, 2026
Securities Regulation and Corporate Governance Monitor
SEC Guidance on Activism, Tender Offers, Proxy Matters, Crowdfunding
July 9, 2026
Business Law Prof Blog
The Latest on Reincorporations
July 9, 2026
Bloomberg
Supreme Court’s Originalism Is Dead
July 8, 2026
Wall Street Journal
Why Smucker’s Bet on Twinkie Flopped
July 8, 2026
Delaware Business Litigation Report
Chancery Applies “Heightened” Presumption of Director Independence
July 8, 2026
New York Times
Lawyer William D. Zabel Dies
July 8, 2026
D&O Diary
New Lawsuit Suggests Evolution in Cross-Border Securities Fraud
July 8, 2026
Wall Street Journal
U.S. Revokes Iranian Oil-Sales Waiver
July 7, 2026
Bloomberg
Fed Proposes Changes to Anti-Money Laundering Rules for Banks
July 7, 2026
D&O Diary
Private Credit Firm Sued Over Excessive Payment-in-Kind Fee
July 7, 2026
Sidley Enhanced Scrutiny
Chancery Rules Indemnification Can Fix Bad Purchase-Price Adjustment
July 7, 2026
Delaware Corporate & Commercial Litigation Blog
Delaware Chancery Clarifies Implied Covenant of Good Faith and Fair Dealing
July 7, 2026
Wall Street Journal
Banks Mull Deal to Shake Up Payments
July 6, 2026
Bloomberg
Toyota to Make Truck in Texas Not Mexico
July 6, 2026
Freshfields' A Fresh Take
SEC Expanding Regulatory Perimeter
July 6, 2026
Financial Times
Microsoft to Axe 4,800 Jobs
July 6, 2026
Deal Lawyers.com
Delaware Supremes Say Fraudulent-Reps Reliance OK Despite Diligence Gaps
July 6, 2026
Reuters
UK Budget Airline to Accept Takeover
July 5, 2026
Wall Street Journal
Why Billionaire Wants to Pay More Tax
July 5, 2026
Cleary Securities Watch
SEC Updates Debt Tender-Offer Rules
July 5, 2026
D&O Diary
Solar Panel Company Hit with Tariff-Related Securities Suit
July 5, 2026
Delaware Corporate & Commercial Litigation Blog
Delaware Chancery Harmonizes Conflicting Forum Selection Clauses
July 5, 2026
Reuters
US to End North American Trade Deal
July 1, 2026
Wall Street Journal
Scandals Shake Up McKinsey Board
July 1, 2026
Bloomberg
Exxon to Change Name Post-Redomicile
July 1, 2026
Financial Times
White House Lifts Anthropic Ban
July 1, 2026
D&O Diary
Federal Contractors Claim Fuzzy DEI Requirements Put Them at Risk
July 1, 2026
Delaware Corporate & Commercial Litigation Blog
The Key Delaware Corporate and Commercial Decisions of 2026 So Far
July 1, 2026
Bloomberg
TikTok Finalizes Addiction-Suit Deal
June 30, 2026
Cleary M&A Watch
Shareholder Activism at 2026 Midpoint
June 30, 2026
New York Times
AOL, Vimeo, Other Oldies Live Again
June 30, 2026
Financial Times
New “Claude” Seeks Pharma Revenue
June 30, 2026
D&O Diary
Securities Suits Up in Year’s First Half
June 30, 2026
Wall Street Journal
Remote Work Shrinks New-Grad Jobs
June 29, 2026
Dealbook
Comcast to Spin Off NBCUniversal
June 29, 2026
Financial Times
Scotus Rules Fed Governor Can Stay
June 29, 2026
D&O Diary
FTC, Then Shareholders, Sue Zillow
June 29, 2026
Yahoo Finance
SEC Probing PE Continuation Funds
June 29, 2026
Wall Street Journal
FIFA Ban a Stadium Sponsor Boon
June 28, 2026
Bloomberg
Flawed Robotaxis Making Headway
June 28, 2026
New York Times
OpenAI IPO May Wait Until Next Year
June 28, 2026
Cleary Securities Watch
Update on 2026 Shareholder Activism
June 28, 2026
Sidley Enhanced Scrutiny
Delaware Chancery Clarifies Limits of Delaware Notice Pleading
June 28, 2026
D&O Diary
Delaware Court: Bump-Up Clause Bars Shareholder-Suit D&O Coverage
June 28, 2026
D&O Diary
AI Governance Is a Fiduciary Duty
June 25, 2026
Justice Department
SPAC Ex-CEO Sentenced to 3 Years
June 25, 2026
Bloomberg
SEC Joins Prediction Market Fray
June 25, 2026
Deal Lawyers.com
Texas Biz Court Adresses “Affiliate” Under Drag-Along Rights Provision
June 25, 2026
Business Law Prof Blog
Nevada Starts Business Court Pilot
June 25, 2026
Bloomberg
Anthropic Accuses Alibaba of “illicitly” Accessing AI Models
June 24, 2026
Financial Times
Bitcoin Hits 20-Month Low
June 24, 2026
Cleary Securities Watch
CFTC Proposes New Rule on Oversight of Prediction Markets
June 24, 2026
D&O Diary
Case Shows How Pre-IPO Share Repurchases Create D&O Risks
June 24, 2026
Deal Lawyers.com
SEC Issues New CFI on Rights Listings in Business Combinations
June 24, 2026
Wall Street Journal
CEO Paydays Soar Past $200 Million
June 23, 2026
Bloomberg
Banks Capping Private Credit Exits
June 23, 2026
The Governance Beat
Audit-Committee Chair Top 10 Wishes
June 23, 2026
Financial Times
Paul Weiss Snags Bankruptcy Star
June 23, 2026
D&O Diary
Derivative Suit Alleges Uber is a “Serial Compliance Offender”
June 23, 2026
Wall Street Journal
SpaceX Readies Bond Market Debut
June 22, 2026
Bloomberg
Former Fed Chair Greenspan Dies
June 22, 2026
The Governance Beat
PwC Report Says Effective Governance Requires Boards and Management
June 22, 2026
D&O Diary
Texas Anti-ESG Effort Targets ISS
June 22, 2026
Deal Lawyers.com
U.S. Court Allows Shareholder Claims Over Regulatory Approval Disclosure
June 22, 2026
Reuters
Trump: Anthropic No Security Threat
June 21, 2026
Wall Street Journal
Hollywood Hits Pre-Pandemic Highs
June 21, 2026
Financial Times
Wars Drawing VCs to Defense Tech
June 21, 2026
D&O Diary
SEC’s Proposal to Ditch Quarterly Reporting Draws Heated Comments
June 21, 2026
Business Law Prof Blog
Delaware Chancery Issues First Decision Interpreting DGCL Section 144
June 21, 2026
Reuters
Startups Explore Orbital AI Data Centers
June 18, 2026
Bloomberg
AI Learns to Spot Toxic Bosses
June 18, 2026
Wall Street Journal
More Investors Seek Private Credit Exit
June 18, 2026
Financial Times
JPMorgan Cuts Claude Access in Asia
June 18, 2026
Deal Lawyers.com
Chancery Finds Selling Shareholders Didn’t Breach Right of First Refusal
June 18, 2026
Wall Street Journal
John Paulson Wins Puerto Rico Case
June 17, 2026
New York Times
Musk May Merge SpaceX, Tesla Next
June 17, 2026
The Governance Beat
Can SEC Act With Two Commissioners?
June 17, 2026
Financial Times
Trump Delays Jay Clayton Confirmation
June 17, 2026
Sidley Enhanced Scrutiny
Chancery Dumps Stockholder Claims as Derivative, Unripe, and Untimely
June 17, 2026
Bloomberg
Kalshi Aims to Expand Perpetual Futures
June 16, 2026
New York Times
SpaceX to Buy AI Startup for $60 Bln
June 16, 2026
D&O Diary
Securities Suit Over AI Hits Microsoft
June 16, 2026
Delaware Corporate & Commercial Litigation Blog
Chancery Offers Guidance on Enforcing, Changing Scheduling Orders
June 16, 2026
Business Law Prof Blog
The Latest in State Reincorporations
June 16, 2026
Wall Street Journal
Paramount Deal OK Stuns DOJ Staff
June 15, 2026
Delaware Business Litigation Report
Delaware Supreme Court Addresses Implied Covenant in Earnout Dispute
June 15, 2026
Freshfields' A Fresh Take
Climate-Disclosure Rescission Presages Fate of Other Disclosure Rules
June 15, 2026
D&O Diary
Bankruptcy and Securities Law Tangle in Class-Action Dismissal
June 15, 2026
Delaware Corporate & Commercial Litigation Blog
Chancery Clarifies Equitable Role in Setting Post-Judgment Interest
June 15, 2026
Bloomberg
Trump Taps New Top Wall Street Cop
June 14, 2026
D&O Diary
Private Credit Litigation Is Growing
June 14, 2026
Armstrong Teasdale Report
How SEC Chair’s First Year Has Gone
June 14, 2026
Bain Report
Private Equity Turnaround Deferred
June 14, 2026
Business Law Prof Blog
Buy Tesla Shares to Get SpaceX
June 14, 2026
Blog Roll Header
  • 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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