GARY DUFFY

Corporate Board Profile

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SOUTH DAKOTA SOYBEAN PROCESSORS LLC

Filing Date Source Excerpt
2015-04-28 He received his B.S. degree in Mechanical Agriculture from South Dakota State University, Brookings, South Dakota, in 1975.
2016-04-20 Gary has been a farmer for the past 41 years. He is the former president of the South Dakota Corn Growers Association.
2017-04-25 He received his B.S. degree in Mechanical Agriculture from South Dakota State University, Brookings, South Dakota, in 1975.

Data sourced from SEC filings. Last updated: 2026-02-03