| Date/Season | Transaction |
|---|
| 12/21/2020 | Pittsburgh Penguins send Timo Pielmeier to the Anaheim Ducks for Mark Visentin, NYI 2027 Rnd 2 |
| 7/5/2020 | Philadelphia Flyers send Devan Dubnyk, $3,000,000 to the Boston Bruins for Timo Pielmeier (rental), BOS 2025 Rnd 2 |
| 3/23/2020 | Pittsburgh Penguins send Luke Adam, Timo Pielmeier to the Boston Bruins for Henrik Lundqvist |
| 2/18/2020 | Pittsburgh Penguins send Henrik Lundqvist, $1,500,000 to the Boston Bruins for Timo Pielmeier |
| 5/19/2016 | Montreal Canadiens send Craig Anderson, Jordan Szwarz, Julian Melchiori to the Boston Bruins for Timo Pielmeier |
| 4/28/2016 | Calgary Flames send Timo Pielmeier, Mason McDonald to the Boston Bruins for Jhonas Enroth, Hannu Toivonen, BOS 2021 Rnd 3 |
| 8/20/2014 | Calgary Flames send Andrew Cogliano, Lauri Tukonen, Ryan Callahan to the New York Rangers for Dana Tyrell, Kris Versteeg, Rocco Grimaldi, Timo Pielmeier, NYR 2019 Rnd 3, NYR 2022 Rnd 1, NYR 2023 Rnd 1, NYR 2023 Rnd 2, $1,500,000 |
| 8/8/2014 | New York Rangers send Brian Dumoulin, James Reimer, Mike Green, Tomas Fleischmann to the New Jersey Devils for Dan Hamhuis, Steve Ott, Timo Pielmeier, Viktor Stalberg, FLA 2021 Rnd 3 |
| 10/15/2012 | New Jersey Devils send Hannu Toivonen, Jake Gardiner, James Van Riemsdyk, Jordan Caron, Philip McRae, Ryan Wilson to the Calgary Flames for Alexander Burmistrov, Carl Sneep, Devante Smith-Pelly, John Carlson, Matt Hendricks, Timo Pielmeier |
| 2011 | Drafted in the 3rd round, 89th overall by Calgary (from Edmonton) |
