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Senior leadership turnover hits Canada's largest pension funds

Reported by Benefitsandpensionsmonitor
Aug 20, 2026· 2 min read
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Key Takeaways
  • • Canada's largest pension funds are experiencing significant senior leadership turnover, with documented departures including a chief legal officer and chief corporate officer at Aimco under CEO Siddall's tenure.
  • • CPP Investments, managing $777.5 billion in assets (as of September 30, 2025) on behalf of 22 million Canadians, ranked second globally for 10-year returns (2016–2025) with an 8.34% average annual return, though broader industry challenges persist.
  • • Canada's largest pension funds reported weak or negative private equity returns for 2025, marking some of the poorest outcomes in recent years and signaling portfolio performance headwinds across the sector.
  • • The "Maple 8" largest Canadian pension funds collectively manage approximately $4.5 trillion in assets (US$3.267 trillion) as of end-2024, placing Canada third globally in pension asset management.
  • • Leadership instability at major Canadian pension funds coincides with documented governance concerns, including questionable decisions by CEOs and boards that have drawn scrutiny and deposition proceedings.
Summary
Canada's largest pension funds are navigating a period of notable executive departures and leadership volatility. According to available reports, Aimco—one of Canada's major pension managers—has experienced senior staff turnover under CEO Siddall, including losses of a chief legal officer and chief corporate officer. This leadership instability occurs within a broader context of governance scrutiny, with reports documenting clashes at major pension funds and questioning certain decisions made by CEOs and boards, including matters that have prompted deposition proceedings.

The turnover arrives at a challenging time for Canadian pension performance. Multiple sources confirm that Canada's largest pension funds reported weak or negative private equity returns for 2025, with several recording their poorest outcomes in years. This underperformance highlights vulnerabilities in the diversified strategies that these institutions employ, despite their historical track records.

CPP Investments, the country's largest pension manager overseeing $777.5 billion (September 30, 2025) on behalf of 22 million Canadians, provides a counterpoint to broader sector weakness. The fund ranked second globally for 10-year returns between fiscal years 2016 and 2025, delivering an average annual return of 8.34%—surpassed only by Sweden's AP7 pension fund. CPP Investments has generated $543 billion in net investment income since inception as of December 31, 2025, and maintains a diversified portfolio spanning more than 50 countries.

The "Maple 8" largest Canadian pension funds collectively manage approximately $4.5 trillion in assets as of end-2024, placing Canada third globally in pension asset management behind only the United States and Japan. Despite this substantial scale and CPP Investments' strong international recognition, the sector faces headwinds from private equity performance challenges and internal governance dynamics that are prompting executive transitions at multiple institutions.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Benefitsandpensionsmonitor Senior leadership turnover hits Canada's largest pension funds