Alt Goes Mainstream: A Conversation with HarbourVest CEO John Toomey

April 14, 2026

Private markets are increasingly accessible to a broader range of investors – but access alone isn’t enough. As “alts go mainstream,” the focus is shifting from whether to invest to how to invest thoughtfully and at scale over time.

In this episode of the Alt Goes Mainstream podcast, John Toomey, CEO of HarbourVest, sits down with host Michael Sidgmore for a conversation on how private markets have evolved over his 30-year career and how institutional lessons about diversification, portfolio construction, and liquidity management are becoming increasingly relevant for private wealth investors.

What you’ll hear:

  • How private markets have changed over 30 years – from relationship-driven, opaque, institutional‑only strategies to scaled, transparent solutions more accessible by a wider range of investors
  • Why diversification and thoughtful portfolio construction matter just as much in private markets as in public markets
  • The growing importance – and complexity – of manager selection in private markets, as dispersion of returns varies widely across strategies and segments
  • What it really takes to manage evergreen private market vehicles responsibly, and why not every manager has the ability to offer evergreens at scale
  • The evolving role of secondaries as a central portfolio holding and useful “on-ramp” to private markets, delivering diversification, cash‑flow management, and attractive long‑term portfolio outcomes
  • How a multi-manager platform can serve as a core portfolio allocation, either as a standalone, diversified private markets solution or a complementary exposure

Highlight

Why manager selection is risky for advisors to do themselves, and how to understand private market allocations within the total portfolio

Highlight

What it takes to manage evergreen vehicles, and why a multi-manager platform is well-suited to do it successfully

Highlight

The power of having deep private markets data to construct portfolios that are diversified along many dimensions  

HarbourVest Partners, LLC is a registered investment adviser under the Investment Advisers Act of 1940. This material is solely for informational purposes and should not be viewed as a current or past recommendation or an offer to sell or the solicitation to buy securities or adopt any investment strategy.  The opinions expressed herein represent the current, good faith views of the author(s) at the time of publication, are not definitive investment advice, and should not be relied upon as such. This material has been developed internally and/or obtained from sources believed to be reliable; however, HarbourVest does not guarantee the accuracy, adequacy or completeness of such information. There is no assurance that any events or projections will occur, and outcomes may be significantly different than the opinions shown here.  This information, including any projections concerning financial market performance, is based on current market conditions, which will fluctuate and may be superseded by subsequent market events or for other reasons. The information contained herein must be kept strictly confidential and may not be reproduced or redistributed in any format without the express written approval of HarbourVest.

Diversification does not guarantee a profit or protect against loss. 

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