John S. Stafford III

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John S. Stafford III
Occupation Chief Executive Officer
Employer Ronin Capital LLC
Location Chicago

John S. Stafford, III is a Chicago-based trader, investor and principal trading firm executive, who is the chief executive officer and co-founder of Ronin Capital LLC. [1][2]


Prior to joining Ronin Capital LLC, Stafford was the managing director of Stafford Trading from 1996 - 2001. The company was involved in proprietary trading operations and venture capital investments. Stafford Trading was acquired by TD Options in 2001.[3]

He also sits on the board of several companies including Clinical Micro Sensors, Inc., All Optical Networks, Inc. and sat on the board of Xencor for 18 years before resigning in 2016.[4] He was the lead advisor to Xencor and at one time owned 25% of the company's stock.

He is a strategic advisor to OCA Ventures.[5][6][7]

Ronin is an avid golfer, with a reported 8 handicap, who has participated in the Pebble Beach Pro-Am.[8]


Stafford graduated from the University of Chicago.


  1. Why Chicago's wealthy are into this little hedge fund. Crain's Chicago Business.
  2. Business Leaders.
  3. Board of Directors. Xencor website.
  4. About John Stafford. BusinessWeek.
  5. org=OCA Ventures. {{{org}}}.
  6. {{{name}}}. Xencor, Inc..
  7. Board Director Invests $1.5 Million in Xencor Inc (XNCR) Amid the IPO.
  8. The Overlooked Tycoons Playing Pebble Beach With Justin Timberlake And Bill Murray. Forbes.
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