| Team |
Date |
Transaction |
 |
January 28, 2021 |
Seattle Mariners invited non-roster C Brian O'Keefe to spring training. |
 |
September 30, 2020 |
C Brian O'Keefe assigned to Tacoma Rainiers from Mariners Alternate Training Site. |
 |
July 18, 2020 |
C Brian O'Keefe assigned to Mariners Alternate Training Site from Tacoma Rainiers. |
|
December 12, 2019 |
Tacoma Rainiers claimed C Brian O'Keefe off waivers from Memphis Redbirds. |
 |
September 1, 2019 |
C Brian O'Keefe assigned to Memphis Redbirds from Springfield Cardinals. |
 |
April 4, 2019 |
C Brian O'Keefe assigned to Springfield Cardinals from Memphis Redbirds. |
|
March 24, 2019 |
C Brian O'Keefe assigned to Memphis Redbirds from Palm Beach Cardinals. |
 |
February 11, 2019 |
St. Louis Cardinals invited non-roster C Brian O'Keefe to spring training. |
 |
September 19, 2018 |
Palm Beach Cardinals activated C Brian O'Keefe from the 7-day injured list. |
|
August 29, 2018 |
Palm Beach Cardinals placed C Brian O'Keefe on the 7-day disabled list. |
|
April 4, 2018 |
C Brian O'Keefe assigned to Palm Beach Cardinals from Peoria Chiefs. |
|
March 16, 2018 |
C Brian O'Keefe assigned to St. Louis Cardinals. |
 |
September 5, 2017 |
C Brian O'Keefe assigned to Peoria Chiefs from Springfield Cardinals. |
|
September 1, 2017 |
C Brian O'Keefe assigned to Springfield Cardinals from Palm Beach Cardinals. |
|
August 25, 2017 |
C Brian O'Keefe assigned to Palm Beach Cardinals from Peoria Chiefs. |
|
March 28, 2017 |
C Brian O'Keefe assigned to St. Louis Cardinals. |
|
May 3, 2016 |
C Brian O'Keefe assigned to Peoria Chiefs from Palm Beach Cardinals. |
|
April 19, 2016 |
C Brian O'Keefe assigned to Palm Beach Cardinals from Peoria Chiefs. |
|
March 12, 2016 |
C Brian O'Keefe assigned to St. Louis Cardinals. |
|
July 18, 2015 |
C Brian O'Keefe assigned to Peoria Chiefs from State College Spikes. |
 |
June 13, 2014 |
C Brian O'Keefe assigned to State College Spikes. |
|
June 12, 2014 |
St. Louis Cardinals signed C Brian O'Keefe. |
