Ryan Callahan trades
| Ottawa Senators acquire | Date | Tampa Bay Lightning acquire | ||
|---|---|---|---|---|
 | Ryan Callahan | July 30, 2019 | Mike Condon |  |
| 2020 5th round pick | 2020 6th round pick | |||
| New York Rangers acquire | Date | Tampa Bay Lightning acquire | ||
|---|---|---|---|---|
 | Martin St. Louis | March 5, 2014 | 2014 conditional 2nd round pick | |
| 2015 1st round pick | ||||
| Ryan Callahan | ||||
| Comment: Should the Rangers advance to the 2014 Eastern Conference Final, the 2014 second-rounder would become a first-round pick. In the event Callahan should re-sign with the Lightning, the Rangers would receive Tampa Bay`s second-round pick at the 2015 NHL Draft while the Lightning would receive the Rangers` seventh-round draft pick in 2015. | ||||