3i Group PLC (III), the FTSE 100 private equity and infrastructure investment company, has disclosed that WCM Investment Management, LLC has reduced its voting rights stake below a key regulatory threshold. According to a TR-1 major holdings notification filed on 3 November 2026, WCM's total position in 3i Group fell from 4.991710% to 3.915963%, triggering a mandatory disclosure under UK transparency rules. The reduction represents a meaningful change in the shareholder register of one of the UK's largest listed investment groups, and investors in 3i Group may be watching to understand the evolving institutional ownership picture.

Key Points

  • 3i Group PLC (III) — FTSE 100 listed private equity and infrastructure investor, ISIN GB00B1YW4409
  • WCM Investment Management, LLC has reduced its total voting rights position in 3i Group from 4.991710% to 3.915963%
  • The threshold was crossed on 3 November 2026, with the issuer notified on the same date; total voting rights held now stand at 39,974,198
  • Investors should watch whether further disposals bring WCM's holding below the next reporting threshold

WCM Investment Management Drops from 4.99% to 3.92% in 3i Group

The TR-1 notification confirms that Laguna Beach, California-based WCM Investment Management, LLC — an independent US asset manager — crossed a major holding threshold in 3i Group PLC on 3 November 2026. Its total position, combining direct and indirect voting rights, moved from 4.991710% to 3.915963%, equivalent to 39,974,198 voting rights. The notification states that no financial instruments with voting rights exposure are held, meaning the entire position consists of shares. WCM is described in the filing as not controlled by any natural person or legal entity and as not controlling any other undertaking with an interest in 3i Group.

Direct and Indirect Share Holdings Broken Down Across Two Share Classes

The filing provides a breakdown of WCM's remaining position across two share classes. Direct voting rights of 34,554,100 shares, representing 3.384998% of the total, are held under ISIN GB00B1YW4409, 3i Group's primary UK-listed ordinary shares. A further 5,420,098 shares, equating to 0.530965%, are held indirectly under ISIN US88579N1054. The announcement notes that proxy voting varies on underlying accounts, which is relevant for understanding how WCM exercises shareholder influence across its client mandates. No financial instruments convertible into additional voting rights are reported.

3i Group's Shareholder Base and Its Private Equity and Infrastructure Focus

3i Group PLC operates as a leading UK-listed investment company focused on private equity and infrastructure, with its portfolio including majority ownership of Action, the European non-food discount retailer, which has been a significant driver of the group's net asset value growth. The group generates returns through capital appreciation and income from its portfolio companies. Changes in major institutional ownership, as captured by TR-1 disclosures, form part of the regulatory transparency framework designed to keep markets informed about significant shifts in voting control at UK-listed issuers such as 3i Group.