Transactions listed are from October 1 of previous year to April 1 of the following year.
- Before 1921 Season
Traded optional assignment of Red Shea and additional compensation to St Paul (American Association). Received Goldie Rapp.
- January 4, 1921
Purchased Lance Richbourg from Toledo (American Association). (Date given is approximate. Exact date is uncertain.)
- June, 1921
- July 1, 1921
- July 10, 1921
- July 25, 1921
- September, 1921
- September 12, 1921
Purchased Ike Boone from New Orleans (Southern Association).
Traded players to be named later and cash plus players to be named to Indianapolis (American Association). Received Ralph Shinners. The New York Giants sent Eddie Brown (December 17, 1921), Vern Spencer (December 17, 1921), Bud Heine (February 26, 1922) and Red Causey (July 30, 1922) to Indianapolis (American Association) to complete the trade.
- December 6, 1921
- December 7, 1921
Purchased Jimmy O'Connell from San Francisco (PCL) for $75,000.
- Before 1922 Season
Traded Joe Connolly to Little Rock (Southern Association). Received an option on any player on team.