Our Team

Jonathon S. Jacobson


Jonathon S. Jacobson is the founder of HighSage Ventures LLC, a private investment firm formed in 2019, which exclusively manages his family’s assets and those of the One8 Foundation.

Mr. Jacobson is the Chief Investment Officer and Chief Executive Officer of Highfields Capital Management LP, which he co-founded in 1998. Highfields is a Boston-based investment management firm that managed approximately $12 billion globally on behalf of endowments, foundations, pension funds, and other institutional investors until October 2018, when it announced that it would return outside capital to investors.

Prior to co-founding Highfields, Mr. Jacobson spent eight years as a senior portfolio manager at Harvard Management Company, Inc., which is responsible for investing Harvard University’s endowment.

Mr. Jacobson serves as a member of the Board of Directors of PennyMac Financial Services, Inc. and is a member of the Lone Pine Capital LLC Advisory Board. Mr. Jacobson and his wife Joanna are co-trustees of the One8 Foundation and are involved in numerous philanthropic causes. He currently serves on the Investment Committee of the Weizmann Global Endowment Management Trust and is a Lifetime Trustee of the Gilman School in Baltimore, Maryland, where he also serves on the school’s Investment Committee.

Mr. Jacobson served as a Director of iHeartMedia, Inc. and iHeartCommunications, Inc. from 2008 to 2019. He formerly served on the Board of Trustees of Brandeis University, is the former Chairman of the International Board of Trustees of Israel’s Institute for National Security Studies and is a past member of the Board of Dean’s Advisors at Harvard Business School.

Mr. Jacobson received an M.B.A. from Harvard Business School in 1987 and graduated magna cum laude with a B.S. in Economics from the Wharton School, University of Pennsylvania, in 1983. He and Joanna reside in Boston and have three adult children.

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