Previous Affiliates

Susquehanna International Group·3 items

1. 

   Stephen Grugett

   Co-Founder and CEO at MNX

   1. 

      MNX

      Co-Founder and CEO

      2026-02 – Present

   2. 

      Manifold Markets

      Co-Founder and CEO

      2021-12 – 2026-08

   3. T

      Throne

      Co-Founder

      2018-01 – 2021
2. 

   Alex Monahan

   OddsJam founder, angel investor, and former SIG quantitative trader

   1. I

      Independent

      Angel Investor and Advisor

      2026 – Present

   2. O

      OddsJam

      Founder

      2021-04 – 2024-12

   3. 

      Susquehanna International Group

      Quantitative Trader

      2019 – 2021
3. 

   Sarah Chieng

   Head of Developer Experience at Cerebras Systems; Investing Scout at Bain Capital Ventures

   1. 

      Cerebras

      Head of DevX

      2025-09 – Present

   2. 

      Bain Capital Ventures

      Investing Scout

      2024-06 – Present

   3. 

      Exa

      First hire, Growth Engineer

      2023-09 – 2024-06