National Security – The Next Frontier of Corporate Activism

Summary

The article, authored by partners at Cleary Gottlieb, argues that national security is fast becoming a central theme in shareholder activism. Driven by the Trump administration’s “economic security as national security” doctrine and government interventions (equity stakes, onshoring incentives), activists may increasingly weave national-security arguments—around supply chains, divestments and operational footprints—into campaigns aimed at changing corporate strategy or management. The piece highlights market reactions (notably sharp stock gains for companies aligning with U.S. national interest), real-world activist cases such as Ancora’s U.S. Steel campaign, and draws parallels to the rise of ESG as a previous activism frontier. It concludes with practical guidance: companies should anticipate issues, prepare messaging and contingency plans, and carefully manage perceptions to protect shareholder value.

Key Points

The Trump administration’s 2025 push to treat economic policy as national security has moved geopolitical risk into boardroom priorities.
Government actions (equity stakes, onshoring incentives) can materially affect share prices and create new activist opportunities.
Market examples: Department of Defense stake in MP Materials and a U.S. stake in Intel coincided with substantial stock rallies.
Activists can use national-security framing both as rhetoric and as a substantive basis to challenge M&A, leadership and strategy (e.g., Ancora vs U.S. Steel).
National security may follow ESG’s playbook: arguments tied to value creation win institutional investor support more readily than purely social rhetoric.
Corporate response should focus on anticipation, prepared communications, balanced messaging in competing jurisdictions, and narrative control to avoid forced, value-destroying actions.

Context and relevance

This piece matters because it identifies a structural shift in what motivates activist campaigns. Where ESG once reshaped agendas, national security is emerging as a potent lever tied directly to shareholder returns as well as regulatory action. Boards, senior management, in-house counsel and investors should view national-security alignment not only as compliance or reputational risk but as a potential driver (or brake) on valuation and M&A outcomes.

Why should I read this?

Short version: if you’re responsible for strategy, risk or investor relations, this is now part of your job. Activists and policymakers are primed to use national-security arguments to move markets and corporate decisions — so you’ll want the heads-up and a plan before someone else sets the narrative.

Author style / Takeaway

Punchy: this is a wake-up call for corporates. The authors argue that national security will be the next arena where activists play for value—so act early, communicate clearly, and don’t let perceptions drive you into reactive, costly moves.