Impact of Abolishing the Shareholder Rule in Corporate Law

In the realm of corporate law, directors are entrusted with the responsibility to act in the best interests of the company. This includes adhering to legal obligations that define the disclosure of information to shareholders and how their interests should be integrated into company decision-making. A noteworthy development occurred on 24 July 2025, as the Judicial Committee of the Privy Council delivered a significant judgment in Jardine Strategic Limited v Oasis Investments II Master Fund Ltd No 2 [2025] UKPC 34 (Jardine), abolishing the ‘Shareholder Rule’. This landmark decision has profound implications for the legal landscape in England and Wales, with potential reverberations in Ireland.

Historically, the ‘Shareholder Rule’ functioned as an exception to legal advice privilege, restricting a company from asserting privilege over legal counsel against its shareholders in subsequent litigation. The rule had been a fixture in England and Wales for over 135 years. However, the Privy Council’s assessment found no statutory basis for its continuation, establishing that companies may assert legal professional privilege in the face of shareholder litigation. This rare ‘Willers v Joyce direction’ by the Privy Council extends beyond Bermuda, the origin of the appeal, fundamentally altering the privilege landscape in England and Wales.

Background

The case that precipitated this change involved two companies in the Jardine Matheson group, which merged in April 2021. Some shareholders, dissatisfied with the share price offered in the amalgamation, initiated proceedings in Bermuda to establish the ‘fair value’ of their shares. They pursued access to legal advice the company had secured regarding the valuation, asserting it was their right. The company resisted, citing legal professional privilege, but the Bermudan courts mandated disclosure. The case escalated to the Privy Council following an appeal from the defendant company.

The ‘Shareholder Rule’ historically granted shareholders access to privileged legal advice by the company if it predated a dispute. Originally, this rule was anchored in the belief that shareholders, having a proprietary interest in the company, effectively funded such legal advice. As legal understanding evolved, recognising shareholders lack of proprietary interest, the rule was justified by a supposed joint interest in the subject of communications between the company and its shareholders. Despite its longstanding application in English courts, the rule increasingly faced scrutiny regarding its legitimacy.

Why Abolish the Shareholder Rule?

The legitimacy of the ‘Shareholder Rule’ had been questioned in recent years, culminating in a formal challenge in Aabar Holdings SARL v Glencore plc [2024] EWHC 3046 (Comm). In this case, Justice Picken found the rule unsupportable on traditional grounds of proprietary justification and lacking any overarching ‘joint interest privilege’ between companies and shareholders. The UK Supreme Court chose not to fast-track the plaintiff’s appeal, deferring resolution to the Jardine case before the Privy Council.

The Privy Council ultimately deemed the ‘Shareholder Rule’ as devoid of justification, likening it to an emperor with nonexistent attire. The decision rested on three pillars: the inconsistency of proprietary justification with a company as a separate legal entity; the absence of presumed joint interest between companies and shareholders, given their often divergent interests; and the impracticality of a nuanced assessment of joint interest in legal advice, which would foster uncertainty for companies.

Position in Ireland

In Ireland, judicial reference to the ‘Shareholder Rule’ has been sparse, yet it has surfaced in shareholder oppression claims. For instance, in Carlo Tassara Asset Management S.A. v Eire Composites Teoranta [2016] IEHC 103, Haughton J leaned on English case law to support the notion that legal advice obtained by a company could be accessed by shareholders if it pertained to actions potentially leading to litigation. Similarly, in Re Brock Delappe Ltd [2023] IEHC 318, Sanfey J upheld the principle that a shareholder’s entitlement to legal advice was contingent on a joint interest which dissipated upon litigation.

The Privy Council’s decisive rejection of the ‘Shareholder Rule’ in Jardine, alongside judgments from other common law jurisdictions like Canada and Australia, which have either refused to apply or questioned the rule’s validity, raises questions about its future in Ireland.

Impact on Corporate Governance

The Privy Council’s judgment offers clarity for directors within jurisdictions adhering to its decisions, providing assurance that legal advice sought in the company’s best interest remains privileged. This certainty is crucial as directors navigate the complexities of stakeholder interests, which often encompass diverse and changing priorities.

Legal advice serves as a vital tool in a company’s decision-making arsenal, aiding in balancing its best interests with those of its stakeholders. A persistent question for companies is what information must be disclosed to shareholders upon request. The Jardine decision illuminates the path forward regarding legal advice, though how this will resonate within the Irish context remains unsettled.

In conclusion, the abolition of the ‘Shareholder Rule’ marks a pivotal shift in corporate law, offering companies greater clarity and security in maintaining legal privilege. It sets a precedent that could influence Irish courts and reshape corporate governance, ensuring directors can act decisively in the company’s interest without the spectre of shareholder litigation undermining confidential legal counsel.