| 3/12/2018 | Recalled G Peter Budaj from Syracuse (AHL). |
| 3/6/2018 | Assigned G Peter Budaj to Syracuse (AHL) on conditioning assignment. |
| 3/1/2018 | Recalled F Anthony Cirelli from Syracuse (AHL); Assigned F Michael Bournival to Syracuse (AHL). |
| 2/27/2018 | Recalled F Michael Bournival from Syracuse (AHL). |
| 2/26/2018 | Acquired D Ryan McDonagh and FJ.T. Miller from the Rangers in exchange for F Vladislav Namestnikov and F Brett Howden, D Libor Hajek, a 2018 first-round draft pick and a conditional 2019 second-round draft pick |
| 2/21/2018 | Claimed F Gabriel Dumont off waivers from Ottawa; assigned Dumont to Syracuse (AHL). |
| 2/21/2018 | Assigned F Matthew Peca to Syracuse (AHL). |
| 2/8/2018 | Recalled F Adam Erne from Syracuse (AHL). |
| 2/6/2018 | Assigned F Michael Bournival to Syracuse (AHL). |
| 1/31/2018 | Acquired G Edward Pasquale from Edmonton in exchange for future considerations. |
| 1/29/2018 | Recalled G Louis Domingue from Syracuse (AHL). |
| 1/27/2018 | Assigned G Louis Domingue to Syracuse (AHL). |
| 1/21/2018 | Recalled F Matthew Peca and F Michael Bournival from Syracuse (AHL). |
| 1/16/2018 | Recalled G Louis Domingue from Syracuse (AHL). |
| 1/14/2018 | F J.T. Brown claimed off waivers by Anaheim. |
| 1/13/2018 | Assigned G Louis Domingue to Syracuse (AHL). |
| 12/31/2017 | Recalled G Louis Domingue from Syracuse (AHL). |
| 12/08/2017 | Assigned D Jamie McBain to Syracuse (AHL). |
| 12/04/2017 | Recalled D Jamie McBain from Syracuse (AHL). |
| 12/03/2017 | Assigned D Jamie McBain to Syracuse (AHL). |
| 12/02/2017 | Recalled F Cory Conacher and D Jamie McBain from Syracuse (AHL). |
| 11/26/2017 | Assigned F Cory Conacher to Syracuse (AHL). |
| 11/25/2017 | Assigned F Chris DiDomenico Syracuse (AHL) on a conditioning loan. |
| 11/24/2017 | Claimed F Chris DiDomenico off waivers from Ottawa. |
| 11/24/2017 | Recalled F Cory Conacher from Syracuse (AHL). |
| 11/22/2017 | F Gabriel Dumont claimed off waivers by Ottawa. |
| 11/14/2017 | Acquired G Louis Domingue from the Arizona Coyotes in exchange for G Michael Leighton and F Tye McGinn. |
| 10/9/2017 | Assigned F Michael Bournival to Syracuse (AHL). |
| 10/2/2017 | Assigned F Cory Conacher to Syracuse (AHL). |
| 10/1/2017 | Assigned Nicola Riopel to Adirondack (ECHL). |
| 9/25/2017 | Assigned Anthony Cirelli, Adam Erne, Mathieu Joseph, Tye McGinn, Matthew Peca, Mitchell Stephens, Dennis Yan, Erik Cernak, Jamie McBain, Ben Thomas and Daniel Walcott to Syracuse (AHL) and Brett Howden to Moose Jaw (WHL). |
| 9/24/2017 | Assigned Connor Ingram, Michael Leighton, Mat Bodie Matt Spencer, Alex Gallant and Carter Verhaeghe to Syracuse (AHL). Assigned Otto Somppi to Halifax (QMHJHL). Released Kevin Lynch, Shane Conacher and Reid McNeill from their professional tryout agreements. |
| 9/21/2017 | Assigned Boris Katchouk to Sault St. Marie (OHL), Cal Foote to Kelowna (WHL) and Liobor Hajek to Saskatoon (WHL). |
| 7/18/2017 | Re-signed forward Michael Bournival to a one-year, two-way contract. |
| 7/14/2017 | Re-signed forward Ondrej Palat to five-year contract. |
| 7/10/2017 | Re-signed forward Tyler Johnson to a seven-year contract. |
| 7/5/2017 | Re-signed defenseman Jake Dotchin to a two-year, one-way contract. |
| 7/5/2017 | Re-signed forward Matthew Peca to a one-year, two-way contract. |
| 7/3/2017 | Re-signed defenseman Slater Koekkoek to a one-year, one-way contract worth $800,000. |
| 7/1/2017 | Signed defenseman Jamie McBain to a one-year, two-way contract. |
| 7/1/2017 | Signed free agent left wing Alex Gallant to a one-year, two-way contract. |
| 7/1/2017 | Signed free agent left wing Chris Kunitz to a one-year contract worth $2 million. |
| 7/1/2017 | Signed defenseman Mat Bodie to a one-year, two-way contract. |
| 7/1/2017 | Signed goaltender Michael Leighton to a one-year, two-way contract. |
| 7/1/2017 | Signed free agent defenseman Dan Girardi to a two-year contract worth $3 million per year. |
| 7/1/2017 | Acquired forward Carter Verhaeghe from the New York Islanders in exchange for goaltender Kristers Gudlevskis. |
| 7/1/2017 | Signed defenseman Oleg Sosunov to three year, entry-level contract. |
| 6/29/2017 | Signed forward Alex Volkov to three-year entry-level contract. |
| 6/28/2017 | Re-signed forward Gabriel Dumont to two-year contract. |
| 6/28/2017 | Re-signed forward Cory Conacher to two-year contract. |
| 6/26/2017 | Issued qualifying offers to restricted free agents Michael Bournival, Tyler Johnson, Tye McGinn, Ondrej Palat, Matthew Peca, Tanner Richard, Jake Dotchin, Slater Koekkoek and Kristers Gudlevskis. |
| 6/26/2017 | Re-signed forward Yanni Gourde to two-year, one-way contract. |
| 6/26/2017 | Re-signed defenseman Andrej Sustr to one-year contract. |
| 6/22/2017 | Signed goaltender Peter Budaj to two-year contract. |
| 6/21/2017 | Vegas selected defenseman Jason Garrison in Expansion Draft. For drafting Garrison, the Golden Knights also receive the Lightning's 2017 second-round draft pick, Pittsburgh's 2018 fourth-round draft pick and negotiating rights with unsigned forward prospect Nikita Gusev. |
| 6/15/2017 | Acquired defenseman Mikhail Sergachev and a 2018 conditional second-round draft pick from Montreal for forward Jonathan Drouin and a 2018 sixth-round draft pick. |
| 5/15/2017 | Signed forward Taylor Raddysh to three-year, entry-level contract. |
