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  • John C. Coffee, Jr.: Event Contracts and Prediction Markets Comment bubble 2 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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Dealbook
Military Drone Startup Raises $2 Billion
March 26, 2026
Delaware Business Litigation Report
Delaware Chancery Nixes Case Lacking Equitable Subject Matter Jurisdiction
March 26, 2026
D&O Diary
AI-Related Securities Suit Hits Power Supply Company
March 26, 2026
Sidley Enhanced Scrutiny
Pro-Merger Activist That Changed Its Mind Can’t Get Court to Block Deal
March 26, 2026
Deal Lawyers.com
Delaware Chancery Orders Equitable Extension of Earnout Window
March 26, 2026
The Governance Beat
SEC “SOX Group” to Target Auditors
March 25, 2026
Dealbook
What Sora’s End Says About OpenAI
March 25, 2026
D&O Diary
Tariff Pass-Through Litigation Expands
March 25, 2026
New York Post
Widow of British Billionaire Killed in Yacht Sinking Faces Bankruptcy
March 25, 2026
Bloomberg
SEC Must Release Musk Interview
March 25, 2026
Wall Street Journal
Judge Says Government Ban on Anthropic Looks Like Attempt to Punish
March 24, 2026
D&O Diary
Short Seller Report Prompts Securities Suit Against Private Credit Firm
March 24, 2026
Bloomberg
Polymarket Alters Insider Trading Rules
March 24, 2026
Reuters
SEC Ex-Enforcement Chief Clashed With Bosses on Trump Before Exit
March 24, 2026
Business Law Prof Blog
The Latest on Reincorporations
March 24, 2026
Wall Street Journal
Airline Economy Cabin Keeps Shrinking
March 23, 2026
Sidley Enhanced Scrutiny
Delaware Chancery Rules Firm Counsel Must Be Neutral in Board Deadlock
March 23, 2026
Bloomberg
SEC Team Is Targeting “Bad Actors”
March 23, 2026
CoinDesk
Is Bankman-Fried Angling for Pardon?
March 23, 2026
D&O Diary
Jury Says Musk Misled Twitter Investors
March 23, 2026
Bloomberg
OpenAI Plans to Double Headcount
March 22, 2026
Reuters
Musk Offers to Pay TSA Salaries
March 22, 2026
Wall Street Journal
New Weapons of Global Power Are Oil, Rare Earths, and Microchips
March 22, 2026
Freshfields' A Fresh Take
Less Burdensome HSR Form Is Back
March 22, 2026
D&O Diary
Prediction Markets Pose D&O Risks
March 22, 2026
Wall Street Journal
Big Banks Win Looser Capital Rules
March 19, 2026
Reuters
DOJ Charges 3 of Diverting AI to China
March 19, 2026
Bloomberg
DOJ Clears Nexstar’s Tegna Deal
March 19, 2026
The Governance Beat
The Latest on Shareholder Proposals
March 19, 2026
Wealth Management
FINRA Disciplinary Cases at Decade Low
March 19, 2026
Bloomberg
Private Credit Bad, But Not 2008 Bad
March 18, 2026
D&O Diary
Delaware Supremes Says De-SPACs Shielded by 3-Year Limitations Statute
March 18, 2026
CoinDesk
Kalshi Faces Arizona Criminal Charges
March 18, 2026
Law.com
Scotus May Hear SEC “Gag Rule” Suit
March 18, 2026
Financial Times
Musk’s Lawyers Sidestepped SEC Team in Twitter Case Settlement Talks
March 18, 2026
Reuters
SEC Issues Crypto Guidance
March 17, 2026
Cleary Enforcement Watch
Enforcers File Fund-Valuation Cases
March 17, 2026
Bloomberg
Judge Declines Calls from SBF’s Mom
March 17, 2026
Securities and Exchange Commission
Enforcement Chief Ryan Is Out
March 17, 2026
Wall Street Journal
Quarterly Reports on Their Last Legs
March 17, 2026
Delaware Business Litigation Report
Delaware Supreme Court Says Form Matters on Books & Records Demands
March 16, 2026
The Governance Beat
SEC Gives Foreign Private Issuers Section 16 Relief for Now
March 16, 2026
D&O Diary
9th Circuit Revives Funko Case
March 16, 2026
Securities and Exchange Commission
SEC Drops Nader Al-Naji Case
March 16, 2026
Securities Regulation and Corporate Governance Monitor
EDGAR Access Delays and Conditional No-Action Relief for Section 16(a) Filers
March 16, 2026
D&O Diary
How to Counter ESG Backlash
March 15, 2026
CoinDesk
DeFi Flub Costs Crypto Trader $50 Mln
March 15, 2026
Regulatory & Compliance
Should Companies’ Insider-Trading Policies Cover the Prediction Markets?
March 15, 2026
ABA Business Law Today
How to Fix M&A Time-of-Essence Bug
March 15, 2026
Business Law Prof Blog
The SPV-pocalypse Is Coming
March 15, 2026
D&O Diary
Suit Tests Government’s Intel Stake
March 12, 2026
CoinDesk
Binance Sues WSJ on Iran Probe Piece
March 12, 2026
FCPA Professor
Smartmatic Says FCPA Case Vindictive
March 12, 2026
Bloomberg
Exxon Plans to Reincorporate in Texas
March 12, 2026
ThinkAdvisor
SEC Must Produce Texting Fine Data
March 12, 2026
Dealbook
Microsoft Sides With Anthropic v. DOD
March 11, 2026
Freshfields' A Fresh Take
DOJ Unifies Corporate Enforcement
March 11, 2026
The Governance Beat
More Nixed Investor-Proposal Suits
March 11, 2026
SEC Sentinel
FINRA Forward Program Launches
March 11, 2026
Reuters
Lawyer Sentenced for Ponzi Scheme
March 11, 2026
Wall Street Journal
Senate’s New Housing Bill Would Force Large Investors to Sell Homes
March 10, 2026
D&O Diary
State AGs Sue Over Section 122 Tariffs
March 10, 2026
FCPA Professor
Bill to Extend FCPA Limitations Statute
March 10, 2026
Bloomberg
Polymarket Enlists Palantir and TWG AI to Monitor Sports Bets
March 10, 2026
Business Law Prof Blog
IPO to Put Pershing Square in Nevada
March 10, 2026
Wall Street Journal
Anthropic Sues Defense Department
March 9, 2026
New York Times
DOJ, Live Nation Settle Antitrust Case
March 9, 2026
SEC Sentinel
FINRA Reveals Enforcement Changes
March 9, 2026
D&O Diary
D&O Liability in Geopolitical Whiplash
March 9, 2026
Delaware Corporate & Commercial Litigation Blog
Delaware Chancery Enforces Restrictive Covenant in Business Sale
March 9, 2026
Reuters
OpenAI Honcho Exits After DOD Deal
March 8, 2026
Wall Street Journal
FTC Chief Mixes MAGA, Enforcement
March 8, 2026
New York Times
Axel Springer to Buy UK’s Telegraph
March 8, 2026
The Governance Beat
Foreign Private Issuers Get SEC Relief
March 8, 2026
Bloomberg
CFTC, SEC May Move In Together
March 8, 2026
Wall Street Journal
States Sue to Stop New Trump Tariffs
March 5, 2026
Bloomberg
SEC Ends Crypto-Billionaire Sun Case
March 5, 2026
Dealbook
UK Banking App Seeks U.S. Charter
March 5, 2026
D&O Diary
Epstein Disclosure-Related Securities Suit Hits Apollo, Leon Black
March 5, 2026
Milbank Insights
SEC Revises Enforcement Playbook
March 5, 2026
Dealbook
Two Big Production Houses Merge
March 4, 2026
The Governance Beat
Vanguard Settles State Antitrust Suit
March 4, 2026
D&O Diary
How xAI-SpaceX Merger Stacks Up
March 4, 2026
Law.com
PCAOB, SEC Enforcement Hit Lows
March 4, 2026
CoinDesk
Trump’s Crypto Legacy: Paul Atkins
March 4, 2026
Wall Street Journal
DOJ Reverses on Law Firm Sanctions
March 3, 2026
Reuters
Treasury to Mull Bank Liquidity Rules
March 3, 2026
Freshfields' A Fresh Take
Texas Anti-ESG Law Struck Down
March 3, 2026
Bloomberg
SEC, Apex Spar Over Off-Channel Communications Sweep Settlement
March 3, 2026
Reuters
U.S. Gasoline Crosses $3 Gallon Mark
March 2, 2026
Bloomberg
Trump Fails Tariff-Refund Push Delay
March 2, 2026
Delaware Business Litigation Report
Delaware Court Rules That Merger Provision Is an Arbitration Clause
March 2, 2026
The Governance Beat
Can AI Tool Replace Proxy Advisers?
March 2, 2026
Deal Lawyers.com
Delaware Supreme Court OKs SB21
March 2, 2026
Wall Street Journal
Mortgage Rates Drop Below 6 Percent
March 1, 2026
New York Times
Berkshire Hathaway Posts Earnings Drop in Warren Buffett’s Last Year
March 1, 2026
Bloomberg
SEC Announces New Insider Trading Rules for Foreign Companies
March 1, 2026
Deal Lawyers.com
Delaware Supreme Court Says Accountant Can Resolve Earnout Claims
March 1, 2026
Business Law Prof Blog
The Latest on Reincorporations
March 1, 2026
Bloomberg
Warner Says Paramount Tops Netflix
February 26, 2026
Securities Litigation & Enforcement
Fewer Securities Class Actions Are Filed, but More Money Is at Stake
February 26, 2026
CoinDesk
SEC Chair Attends Adversary’s Event
February 26, 2026
Securities Regulation and Corporate Governance Monitor
SEC Issues New C&D Interpretations
February 26, 2026
Business Law Prof Blog
SEC’s No-Action Stance Is Heads I Win, Tails You Lose for Companies
February 26, 2026
Wall Street Journal
Market’s AI Obsession Brings Out Bears
February 25, 2026
Freshfields' A Fresh Take
SEC Updates Enforcement Manual
February 25, 2026
The Governance Beat
Risk of Nixing Investor Proposals Rises
February 25, 2026
Bloomberg
WisdomTree Gets SEC Nod for 24/7 Tokenized Money Market Fund
February 25, 2026
ABA Business Law Today
Insider Trading Cases in the AI Era
February 25, 2026
Blog Roll Header
  • Business Law Prof Blog
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  • 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
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  • 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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