BaFin Changes Its Administrative Practice: The End of Uncertainty for ESG Collaborative Engagements?

Why It Matters

The shift removes legal uncertainty for ESG collaborative engagements, enabling institutional investors to coordinate voting strategies with clearer compliance boundaries. It also pressures German legislators to formally amend the WpHG, fostering greater regulatory harmony across Europe.

Key Takeaways

• BaFin narrows AiC attribution to Transparency Directive standard
• Rule change stops using Section 34(1) nos.3,5 for voting
• ESG collaborations require long‑term binding common policy
• Issuer guidelines and FAQs on transparency no longer apply
• WpÜG takeover rules stay unchanged despite AiC adjustments

Pulse Analysis

The European Court of Justice’s February 12 ruling in Case C‑864/24 struck down Germany’s overly strict ‘acting in concert’ (AiC) definition under Section 34 of the WpHG, deeming it incompatible with the EU Transparency Directive. In response, BaFin issued a supervisory notice on March 20, 2026 that immediately narrows the AiC attribution to the Directive’s narrower standard and suspends the use of Section 34(1) nos. 3 and 5 as voting‑rights attribution bases. This regulatory pivot removes a layer of legal uncertainty that has long plagued ESG collaborative engagement structures in Germany.

For asset managers and pension funds that pool votes on ESG issues, the new practice means that only agreements binding parties to a long‑term common policy toward an issuer’s management will trigger AiC attribution. Firms must therefore review shareholder‑engagement charters, voting‑policy manuals, and internal reporting to ensure that any collaborative stance meets the tighter definition. The removal of the broader Section 34(1) criteria also simplifies disclosure obligations, allowing investors to focus on substantive ESG influence rather than navigating complex attribution thresholds. Compliance teams will need to update procedures promptly to avoid inadvertent breaches.

The BaFin adjustment aligns German practice with EU law, setting a precedent for other jurisdictions that have adopted similarly stringent concert‑action rules. While the WpÜG takeover provisions remain untouched, the clearer boundary between ESG collaboration and takeover‑related voting may encourage more robust, transparent coalitions among institutional investors. Legislators are now under pressure to amend Sections 34(1) and (2) of the WpHG formally, which could further streamline cross‑border ESG voting strategies. Market participants should monitor forthcoming legislative drafts, as they will shape the competitive landscape for sustainable finance in Europe.