| Date/Season | Transaction |
|---|
| 8/28/2017 | Montreal Canadiens send Ryan O'Reilly, Sven Andrighetto, MON 2022 Rnd 1, $3,500,000 to the Calgary Flames for Nathan Horton (rental) |
| 1/28/2016 | Calgary Flames send Johnny Boychuk, Jordan Caron, BOS 2024 Rnd 2 to the Boston Bruins for Nathan Horton |
| 2/27/2015 | Pittsburgh Penguins send Kris Chucko, Nathan Horton to the Boston Bruins for Igor Radulov |
| 2/20/2015 | Pittsburgh Penguins send Derek Roy, Josh Morrissey, Loui Eriksson, Ryan Pulock, $4,000,000 to the Winnipeg Jets for Evgeni Malkin, Nathan Horton |
| 4/5/2012 | Winnipeg Jets send Cam Ward, Jakub Kindl to the Calgary Flames for Andrew Raycroft, Gleason Fournier, Nathan Horton |
| 5/24/2011 | Carolina Hurricanes send Nathan Horton to the Calgary Flames for CGY 2015 Rnd 1, $13,500,000 |
| 2004 | Drafted in the 1st round, 5th overall by NYIslander (from Buffalo) |
