| Date | Player | Info | Contract type/comment |
| 12/31 | Lukas Cormier | Golden Knights announcement | Signs 3-year ELS |
| 12/22 | Deryk Engelland | Golden Knights announcement | Announces retirement. Joins organization/foundation as special assistant to owner Foley. |
| 12/20 | NHL announces agreement with NHLPA for 2020-21 season. Temporary division re-alignment (VGK in "West" division). Season to start 1/13. | ||
| 11/29 | Tristan Langan | Assigned to ECHL Orlando | |
| 11/23 | Joel Ward, Jamie Heward | Silver Knights announcement | Announced as AHL assistant coaches |
| 11/15 | Ryan Murphy | AHL player loaned to KHL | |
| 10/19 | Keegan Kolesar | Golden Knights anouncement | Signed to two year deal. |
| 10/12 | Alex Pietrangelo | Golden Knights announcement | Signed to seven year deal. Full NMC. |
| Nate Schmidt | Traded to Vancouver for 2022 3rd. | ||
| 10/11 | Danny O'Reagan, Tomas Nosek | Golden Knights announcement | Signed to one year deals. O'Reagan for HSK. |
| 10/10 | Tomas Jurco | Signed to one year deal. Probably HSK signing. | |
| 10/9 | Thomas Nosek | Re-signed. One year deal | |
| Carl Dahlstrom | Golden Knights announcement | Stastny traded to WPG for Dahlstrom and 2022 4th | |
| 10/8 | Ried Duke, Jimmy Schuldt | Golden Knights announcement | Re-signed to one year deals. |
| Garrett Sparks (PTO Calgary), Deryk Engelland (retired), Jaycob Megna, Jon Merrill (Det), Curtis McKenzie (STL), Thomas Nosek RESIGNED,Valentin Zykov | Pending UFAs (other than those not QOd) | ||
| 10/7 | Nick Cousins (NSH), Brett Lernout | Not QOd. Become UFAs | |
| Ried Duke, Keegan Kolesar, Jimmy Schuldt | Golden Knights announcement | QOd. | |
| Gage Quinney | Signs one year deal | ||
| Chandler Stephenson | Friedman reports 4 years ($11m) extension. Team confirmed. | ||
| Lukas Cormier (68), Jackson Hallum (91), Jesper Vikman (125), Noah Ellis (184), Maxim Marushev (215) | Golden Knights announcement | Day two selections | |
| 10/6 | Ried Duke | Negotiating new deal. | |
| Brendan Brisson | Golden Knights announcement | Selected 29th overall | |
| 10/3 | Robin Lehner | Golden Knights announcement | Signs five year extension (rumored for a few weeks). |
| 9/28 | Dylan Sikura | Golden Knights announcement | Acquired from NHL Chicago in exchange for Brandon Pirri. |
| 8/31 | Manny Viveiros | Silver Knights announcement | HSK announce hiring of new head coach |
| 8/14 | Ryan Murphy | Silver Knights announcement | Signed to one year AHL deal |
| 8/12 | Golden Knights announcement | ECHL affiliation agreement with Fort Wayne renewed for 2020-21 season. (I did see one headline that said it was for two years.) | |
| 8/6 | With Winnipeg's ouster from Qualifying Round, that cements conditional 2021 pick as 4th round. (Unless Eakin is re-signed.) | ||
| 7/24 | Forwards (18): Patrick Brown, William Carrier, Nick Cousins, Reid Duke, William Karlsson, Keegan Kolesar, Peyton Krebs, Jonathan Marchessault, Tomas Nosek, Gage Quinney, Max Pacioretty, Ryan Reaves, Nicolas Roy, Reilly Smith, Paul Stastny, Chandler Stephenson, Mark Stone and Alex Tuch Defensemen (10): Dylan Coghlan, Deryk Engelland, Nicolas Hague, Nick Holden, Alec Martinez, Brayden McNabb, Jon Merrill, Nate Schmidt, Shea Theodore and Zach Whitecloud Goaltenders (3): Oscar Dansk, Marc-Andre Fleury and Robin Lehner |
Golden Knighs announcement | Playoff roster announced. Thompson, Bischoff and Schuldt out. |
| 7/16 | Jack Dugan | Golden Knights announcement | Officially signs two-year ELC (to begin 20-21 season). |
| 7/13 | Logan Thompson | Golden Knights announcement | Signed to two year ELC. Joins team for phase 3 "training camp". Not eligible to participate in playoffs. |
| 7/12 | Oscar Dansk; Jake Bishoff, Dylan Coghlan, Nicolas Hague, Jimmy Schuldt; Patrick Brown, Reid Duke, Peyton Krebs | Golden Knights announcement | Camp roster announced for restart training camp. Players listed are those that were not on NHL roster when season paused. (Pirri was on roster but does not seem to be on list.) |
| 7/10 | NHL and NHLPA ratify new MOU to extend CBA until September 15, 2026. (Includes Return to Play protocols, etc.) | ||
| 6/30 | Jiri Patera | Golden Knights announcement | Signs three yearl ELC. |
| 6/22 | NHL and NHLPA agree to extend 2020 expiring contracts to 10/30/2020 for playoffs. | ||
| 6/15 | Ryan Reaves | Golden Knights announcement | Re-signs for two years. |
| 6/11 | Oscar Dansk | Golden Knights announcement | Re-signed for one year. |
| 6/1 | Connor Corcoran | Golden Knights announcement | Signed to three-year ELS contract. |
| Jordan Kooy, Xavier Bouchard | 2018 draftees not signed by 6/1 deadline; can return to draft. | ||
| 5/28 | Henderson Siver Knights | AHL team nickname revealed. | |
| 5/11 | Jack Dugan | Knights announcement | Agrees to terms with organization. |
| 5/8 | AHL BOG votes (unanimously) to cancel rest of 2019-2020 season. Thus ends affiliation with AHL Chicago. Announced 5/11. | ||
| 4/22 | Nicolas Roy | Knights announcement | Signs two year extension |
| 4/6 | Zack Hayes | Knights announcement | Another AHL Henderson signing |
| 3/24 | Jake McLaughlin | Knights announcement | AHL Henderson signs first player |
| 3/22 | Zach Whitecloud | Knights announcement | Signs two year extension |
| 3/16 | Cam Maclise | Released from AHL PTO | |
| 3/15 | ECHL cancels season. | ||
| 3/12 | NHL "pauses"/suspends season due to coronavirus. And the AHL joins the suspension. And the ECHL. | ||
| 3/11 | Keegan Kolesar, Brandon Pirri and Nicolas Roy | Knights announcement | Recalled from AHL |
| 3/9 | Nicolas Roy, Brandon Pirri | Knights annoucement | Assigned to AHL |
| Alex Tuch | Activated off IR | ||
| 3/8 | Dan DeSalvo | Released from AHL PTO | |
| 3/7 | Cody Glass | Announced that he's out for the season after knee surgery (injured playing with Chicago Wolves). | |
| 3/5 | Nicolas Roy, Brandon Pirri | Knights announcement | Recalled from the AHL |
| 3/3 | Knights announcement | Assigned to AHL | |
| 3/1 | Gage Quinney | Assigned to AHL | |
| 2/29 | Brandon Pirri | Knights announcement | Recalled from the AHL |
| 2/28 | Knights announcement | AHL BOG approves sale of AHL San Antonio to VGK and relocation to Henderson/Las Vegas | |
| 2/27 | Gage Quinney | Knights announcement | Recalled from AHL |
| Shawn St Amant, Matt Boudens | Released from AHL PTO | ||
| William Carrier | Knights announcement | Signs 4 year extension. | |
| 2/25 | Nicolas Roy, Zach Whitecloud | Knights announcement | Recalled from AHL |
| 2/24 | Knights announcement | Assigned to AHL | |
| Nick Holden | Knights tweet | Re-signed to two-year deal | |
| Nick Cousins | Knights announcement | Acquired in trade with Montreal for 2021 4th round pick | |
| Robin Lehner, Martins Dzierkals | Knights announcement | Lehner acquired in trade with Chicago for Malcolm Subban, Slava Demin and (PIT) 2nd round pick. Dzierkals for 2020 VGK 5th pick as part of three-team trade. | |
| 2/23 | Gage Quinney, Patrick Brown | Knights announcement | Assigned to AHL |
| Patrick Brown | |||
| Knights announcement | Recalled from AHL | ||
| Shawn St Amant, Cam Maclise, Dan DeSalvo | Wolves tweet | Signed to AHL PTOs | |
| 2/21 | Braden Pachel | Assigned to ECHL | |
| Matt Boudens | Signed to AHL PTO | ||
| Zach Whitecloud, Gage Quinney | Knights announcement | Recalled from AHL | |
| Cody Eakin | Knights announcement | Traded to Winnipeg for conditional 2021 4th round pick (becomes 3rd if WPG makes playoffs, or Eakin is re-signed). | |
| 2/20 | Zach Whitecloud and Jimmy Schuldt | Knights announcement | Assigned to AHL |
| 2/19 | Nicolas Roy, Zach Whitecloud and Jimmy Schuldt | Knights announcement | Recalled from AHL |
| Alec Martinez | Acquired in trade from the Los Angeles Kings for a 2020 2nd round pick, and 2021 2nd (STL) round pick. | ||
| Alex Tuch | Put on LTIR | ||
| 2/18 | Zach Whitecloud | Knights announcement | Assigned to AHL |
| 2/17 | Cody Glass | Knights announcement | Assigned to AHL |
| 2/15 | Nicolas Roy | Knights announcement | Assigned to AHL |
| 2/14 | Cody Glass, Nicolas Roy | Knights announcement | Recalled from AHL |
| 2/9 | Nicolas Roy | Knights announcement | Assigned to AHL |
| 2/8 | Cody Glass | Knights announcement | Assigned to AHL |
| 2/6 | Knights annoucement | Purchase AHL franchise from NBA San Antonio Plan to relocate to Las Vegas (Orleans)/Henderson for 2020-2021 season. Build 6k arena in Henderson. | |
| 2/3 | Nicolas Roy, Zach Whitecloud | Recalled from AHL | |
| 2/1 | Trevor Gorsuch | Released from PTO | |
| Ben Jones | Recalled to AHL from ECHL | ||
| Nicolas Roy | Assigned to AHL | ||
| Zach Whitecloud | Recalled from AHL, assigned to AHL | ||
| 1/31 | Jermaine Loewen | Recalled from ECHL | |
| Zach Whitecloud | Knights announcement | Recalled from AHL | |
| Oskar Dansk | Knights announcement | Assigned to AHL | |
| 1/30 | Nicolas Roy, Oskar Dansk | Knights announcement | Recalled from the AHL |
| Trevor Gorsuch | Goalie signed to AHL PTO | ||
| 1/28 | Steve Spott | Knights announcement | Named AC |
| 1/21 | Nicolas Roy, Nicolas Hague | Knights announcement | Assigned to AHL (NHL bye week) |
| 1/19 | Cam Maclise | Released from PTO | |
| 1/17 | Signed to AHL PTO | ||
| 1/15 | Nicolas Roy | Knights announcement | Recalled from AHL |
| Peter DeBoer | Knights announcement | HC Gerard Gallant and AC Mike Kelly fired; Peter DeBoer hired as new HC. (All other ACs retained) | |
| 1/11 | Keegan Kolesar | Knights announcement | Assigned to AHL (after NHL debut) |
| 1/10 | Knights announcement | Recalled from AHL | |
| Nicolas Roy | Assigned to AHL | ||
| 1/8 | Jermaine Loewen | Assigned to ECHL from AHL | |
| Jordan Kooy | OHL trade to Oshawa. | ||
| 1/1 | Nicolas Roy | Knights announcement | Recalled from AHL |