| Trans Num | Date | Details |
| 2021.65 | 2021-06-17 | Selkirk Steelers trade Garrett Richards, Jeff Samardzija, Luis Severino, and Austin Beck (prospect) to the Little Rock Roaring Weasels for Carlos Carrasco, Curt Casali, Andrew Stevenson, and William Holmes (prospect). |
| 2021.27 | 2021-03-15 | Selkirk Steelers trade Glenn Sparkman, Matt Wieters, and Gunnar Henderson (prospect) to the Kelloggs Cereal Killers for Zack Britton and Garrett Richards. |