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by Marie–Noëlle Zen-Ruffinen Published April 21, 2026 in Governance • 7 min read • Audio available
Shareholder activism is not limited to distressed situations. It also engages high-performing companies when investors believe further value can be unlocked. Entry points are diverse: perceived undervaluation, excess cash, capital allocation under scrutiny, a conglomerate structure that creates a holding discount (where the sum of the parts exceeds the group’s market value), governance open to improvement, or a strategy viewed as overly cautious. Strong performance mitigates risk – it does not eliminate it. And it is often during the good times that governance vulnerabilities quietly accumulate.
Shareholder activism pushes for change. Strategy, capital allocation, and governance are put to the test. External pressure builds. When an activist shareholder accumulates a meaningful stake, that pressure shifts into the boardroom. Formally, little changes overnight. Mandates remain intact. Committees continue to operate. The strategy may even be unchanged. In practice, however, everything shifts.
Timelines compress. Scrutiny intensifies. External narratives enter the boardroom. Decisions that once felt settled are re-examined publicly and at speed. In that moment, activism becomes more than a market event. It turns into a stress test – one that reveals whether a board’s discipline, alignment, and preparedness are real or merely assumed.
What activist pressure reveals, above all, is the quality of governance. It shows not only how boards make decisions, but how they behave under pressure, how they manage uncertainty, and how well they have prepared for a challenge few ever welcome, but many will eventually face.
Who speaks to investors? Who engages with the activist? Who approves messages? Mixed signals under pressure create instability and erode credibility.
In ordinary times, strategic alignment can feel implicit. Under activist scrutiny, it must become explicit. The board needs to articulate, in clear and defensible terms, the logic of the company’s strategy and its path to long–term value creation. Activist pressure forces boards to test whether the strategy is clearly articulated, measurable, and resilient under challenge – not just endorsed, but genuinely owned.
Capital allocation decisions are among the most frequent triggers of activist campaigns. Investments, acquisitions, dividend policies, debt levels, and share buybacks all come under scrutiny. Activism tests whether the board has a coherent capital allocation framework and whether it applies that framework consistently. Just as importantly, it tests whether the board has rigorously challenged management decisions and can credibly defend them under pressure.
Activist situations bring a flood of external narratives into the boardroom – media commentary, investor speculation, and market reactions. These signals can influence confidence and behavior, sometimes subtly, sometimes visibly. Under pressure, individual positions may harden or soften. The real test is whether differences remain constructive. Alignment between the chair and the CEO can be either a stabilizing force or a critical vulnerability. Cohesion is a strategic asset – not uniformity, but unity of purpose.
Activist pressure exposes any ambiguity around responsibilities – between the chair and CEO, between committees and the full board, and among individual directors. It also tests communication protocols. Who speaks to investors? Who engages with the activist? Who approves messages? Mixed signals under pressure create instability and erode credibility. Clarity is not optional; it is essential.
Many governance frameworks are robust on paper. Activism tests whether they function in extremis. Boards are not operational bodies, and full boards cannot operate at the pace activists impose. Clear delegation, effective committee structures, and disciplined decision-making processes become critical. Confidentiality, trust, and quality of deliberation must be preserved, even as timelines accelerate.
Activism is not only a test of internal governance but also a test of external legitimacy. We often see in activist situations that management has gradually allowed the intensity of investor relationships to erode. Shareholders who feel unheard do not always raise their concerns directly – sometimes they simply open the door to activists who will. Engagement that is neglected in good times becomes a liability when pressure arrives.
Many boards acknowledge the possibility of activism. Far fewer prepare for it. When pressure arises, the difference between reacting under fire and acting from preparation is immediately visible. Activism reveals whether vulnerabilities were rigorously mapped, governance stress-tested, and response mechanisms built in advance.

If activism reveals governance quality, preparedness is the discipline that strengthens it. Strong boards do not approach activist risk defensively. They approach it systematically by embedding readiness into how they think, decide, and engage.
The starting point is a shift in perspective. Well-prepared boards periodically step outside their assumptions and examine the company through an external lens. Thinking like an activist is not about adopting an adversarial posture, but about stress-testing the strategy, identifying vulnerabilities, and confronting uncomfortable questions. It is a deliberate examination of valuation gaps, credibility risks, and capital-allocation logic conducted on the board’s own terms, before pressure arrives.
That external lens must be matched by internal coherence. A clear equity story, underpinned by disciplined capital allocation, is one of the board’s most important stabilizers in times of scrutiny. Boards should be able to articulate, with consistency and conviction, why this strategy, structure, and use of capital make sense. Activists benefit from a structural narrative advantage: they can speak freely in the media, deploy sharp rhetoric, make personal attacks, and advance unrealistic financial projections, whereas companies operate under regulatory constraints and must respond in a disciplined and fact-based manner. The public dialogue is inherently asymmetrical. When the equity story is unclear, that asymmetry widens. When it is coherent, it narrows.
Preparedness also depends on knowing who stands around the company. Ownership structures evolve continuously, often quietly. Boards that work closely with investor relations to monitor ownership shifts, accumulation patterns, and early engagement signals are far better positioned to detect emerging activism before it crystallizes.
Discovering weaknesses privately is infinitely preferable to discovering them publicly.
Communication protocols and response frameworks should never be designed in the heat of the moment. Strong boards define in advance who engages externally, who approves messages, and how information flows internally. They maintain a governance playbook covering activist tactics – board seat demands, committee restructuring, settlement scenarios, calls for a sale or divestiture – so they can assess options proactively rather than improvise under pressure.
Preparation also means assembling the right team before any campaign emerges. Clear roles matter. So does having built working relationships in advance – internally and, where appropriate, with external advisers. A clear management point person should coordinate the response, ensure speed and consistency, and limit internal distraction. The CEO and executive team must remain focused on running the business.
Simulation plays a powerful role here. Tabletop exercises – for example, an activist accumulating a significant stake and issuing a public challenge – test more than procedures. They reveal alignment, decision speed, trust, and communication under stress. Discovering weaknesses privately is infinitely preferable to discovering them publicly.
Finally, strong governance rests on ongoing engagement. Proactive, structured dialogue with shareholders – involving the chair, CEO, and independent directors within a clear mandate – significantly reduces the likelihood of activism taking hold. When shareholders feel unheard, activists find fertile ground.
Activists invest significant resources in analyzing strategy, capital allocation, governance, and performance. They are disciplined and well-prepared. Boards must be too.

Activist situations can be disruptive. They create pressure, complexity, and personal intensity. Yet activism can also serve as a catalyst for sharper discipline and as a mirror, revealing strengths as clearly as weaknesses. When it arrives, the instinct to fight immediately is rarely the right one. The more productive response is to engage, assess, and hear what the activist is saying before deciding how to act. It is vital to remember that, even when an activist builds a significant stake, the board’s duty does not narrow to managing that one shareholder. Investors have very different profiles, time horizons, and interests. The board of directors must remain focused on the company’s sustainable long-term success.
Activists frequently frame their proposals around maximizing long-term shareholder value – sometimes coupling them with governance, sustainability, or human-capital related proposals to broaden support. The board’s responsibility is to examine this narrative critically. It must determine whether the proposed measures genuinely advance sustainable performance or prioritize short-term tactics and immediate gains. For activists, success ultimately lies in generating strong returns for their investors and their fund. The board of directors, by contrast, must act in the best interests of the company, balancing the perspectives of all stakeholders, not only the loudest voice in the room.
Governance under pressure is not a science. It remains an art – one that must be cultivated before it is tested. Strong performance, coherent strategy, and discipline remain the most effective defenses.

Attorney at Law & Professor, University of Geneva; Vice-Chair, Swiss Board Institute; Board Member
Marie–Noëlle Zen-Ruffinen is Attorney at Law and Professor at the University of Geneva, Faculty of Economics and Management. She is Vice-Chair of the Swiss Board Institute and serves on the boards of Helvetia Baloise Group, Implenia, and Banco Santander International.

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