WILLIAM PETERFFY

Corporate Board Profile

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Interactive Brokers Group, Inc.

Filing Date Source Excerpt
2020-03-11 Mr. Peterffy is the Chair of the Investment Committee of the Peterffy Foundation and leads ESG efforts at IBG LLC. Prior to joining IBG LLC, he worked as an investment analyst within the hedge fund industry.
2021-03-11 Mr. William Peterffy is the Chair of the Investment Committee of the Peterffy Foundation and leads ESG efforts at IBG LLC. He worked as an investment analyst within the hedge fund industry.
2022-03-09 Mr. William Peterffy is the Chair of the Investment Committee of the Peterffy Foundation and leads ESG efforts at IBG LLC. Prior to joining IBG LLC, he worked as an investment analyst within the hedge fund industry.
2023-03-08 Mr. William Peterffy is the Chair of the Investment Committee of the Peterffy Foundation where he oversees its investment portfolio. He joined IBG LLC in 2019 to lead its Environmental, Social and Governance (“ESG”) efforts and is Chairman of the ESG Committee.
2024-03-06 Mr. William Peterffy, age 34, is the Chair of the Investment Committee of the Peterffy Foundation where he oversees its investment portfolio. Mr. William Peterffy joined the Company in 2019 to lead its Environmental, Social and Governance (“ESG”) efforts and is Chairman of the ESG Committee. He joined the Company’s Board as an observer in 2019.
2025-03-06 Mr. William Peterffy, age 35, is the Chair of the Investment Committee of the Peterffy Foundation where he oversees its investment portfolio. Mr. William Peterffy joined the Company’s Board as an observer in 2019. Mr. William Peterffy is also a member of the Board of Trustees of the Collective Heritage Institute (commonly known as Bioneers) and focuses his efforts on sustainability issues.

Source material: SEC submissions metadata and DEF 14A proxy filings from EDGAR. Last updated: 2026-04-08