​Save the Date for The Fourth Effect Annual Summit

​THE BUILD: Governance, Ownership, and the Future of Value Creation

​Every year, we step back to ask one question: what is the state of the effect?

​This year, the answer is all around us. Institutions are being taken apart and put back together. Structures rebuilt by accident get rebuilt badly. Structures rebuilt on purpose become the ground the next generation stands on.

​And it is why, this year, we build.

​We’re thrilled to welcome Justin Rockefeller to our mainstage, bringing a rare perspective on governance, ownership, mission-aligned investing, and what it means to build and steward value across generations.

​Join 200+ entrepreneurs, investors, and cross-sector leaders as we pressure-test two questions from every angle: What should we build? And how do we make sure that what we build keeps creating value?

​Important: This is a Save the Date

​Accepting this invitation will place a hold on your calendar, but it is not a guaranteed ticket to the Summit. A separate invitation to the actual Summit will be sent as we get closer to the event.

​If you have expressed interest in one of our VIP Thought Leadership Rooms, space is limited to 25–30 guests per room. We are carefully curating each conversation and will let you know in the coming weeks if your seat is confirmed.

​The Evening

• ​Invitation-only VIP Thought Leadership Rooms

  • ​Intelligence With Accountability: governing AI inside the org chart, not outside it

  • ​Climate’s Long Game: capital structures built for decade-scale problems

  • ​The Trust Stack: security, transparency, and systems people can rely on

  • ​Health, Built to Hold: durable structures for care, data, and outcomes

  • ​Ownership Architecture: cap tables, boards, and the future of financial power

• ​Mainstage conversations and fireside

• ​Reception and networking

​Tuesday, October 27, 2026
Kirkland & Ellis, New York City
VIP Thought Leadership from 2 PM
Mainstage from 5:15 PM
Reception to follow

​We hope you’ll join us for THE BUILD.itch Competition

​🙏 A Special THANK YOU to:

​Our VIP Partner and host: