| Date | Player | Info | Contract type/comment |
| 12/28 | Rourke Chartier | Recalled | |
| 12/27 | Back to AHL | ||
| 12/23 | Erik Karlsson | Suspended for two games by DoPS | |
| Rourke Chartier | Sharks tweet | Recalled from AHL | |
| 12/21 | Sharks announcement | Assigned to AHL | |
| 12/14 | Ryan Merkley | OHL Trade from Guelph to Peterborough | |
| 12/12 | Rourke Chartier | Sharks announcement | Recalled from AHL |
| 12/11 | Antii Soumela | Sharks announcement | Assigned to AHL |
| 12/3 | Ivan Kosorenkov | Returned to ECHL Worcester | |
| 11/20 | Barracuda announcement | Recalled from ECHL Worcester to AHL | |
| Lukas Radil | Sharks announcement | Recalled from AHL | |
| Dylan Gambrell | Assigned to AHL | ||
| 11/16 | Sharks announcement | Recalled from AHL | |
| Rourke Chartier | Assigned to AHL | ||
| 11/15 | Filip Sandberg | Barracuda announcement | On unconditional waivers (for purpose of mutual contract termination). 11/16 - unsuspended, "recalled" by NHL (and contract cancelled.) |
| 11/14 | Suspended by AHL San Jose | ||
| Paul Martin | Announces retirement. | ||
| 11/12 | Ivan Kosorenkov | Barracuda announcement | Signed to AHL SPC, assigned to ECHL Worcester. Officially announced 11/16. |
| 10/30 | Joe Thornton | Sharks announcement | Activated off IR |
| Dylan Gambrell | Assigned to AHL | ||
| 10/22 | Sharks tweet | Recalled. | |
| 10/21 | Sharks tweet | Assigned to AHL | |
| 10/16 | Sharks announcement | Recalled. | |
| 10/14 | Sharks announcement | Assigned to AHL | |
| 10/6 | Sharks announcement | AHL transactions show recall. | |
| Joe Thornton | Thornton put on IR (retroactive to 10/5?). Leaves road trip/returns to SJ. | ||
| 10/4 | Barclay Goodrow | Sharks announcement | Signs two-year contract extension |
| 10/2 | Michael Brodzinski, Cody Donaghey, Colby McAuley, Alex Schoenborn | Barracuda announcement | Assigned to ECHL Orlando |
| Noah Gregor | Returned to junior team | ||
| Nolan Valleau, Austin Lotz | Released from tryout | ||
| Antoine Bibeau; Dylan Gambrell, Lukas Radil | Sharks announcement | Assigned to AHL | |
| 10/1 | Antoine Bibeau | On waivers (for assignment to AHL); cleared 10/2. | |
| 9/27 | Ryan Merkley | Sharks announcement | Returned to junior team |
| 9/26 | Sasha Chmelevski, Zachary Emond |
Sharks announcement | Returned to junior team |
| Manuel Wiederer, Vincent Praplan, Alex True, Francis Perron, Maxim Letunov, Jayden Halbgewachs, Noah Gregor, Jonathon Martin; Jacob Middleton, Cavan Fitzgerald, Jeremy Roy, Kyle Wood, Keaton Middleton | So all the recalls except Lukas Radil assigned to AHL | ||
| 9/25 | Manuel Wiederer, Vincent Praplan, Lukas Radil, Alex True, Francis Perron, Maxim Letunov, Jayden Halbgewachs, Noah Gregor, Jonathon Martin; Jacob Middleton, Cavan Fitzgerald, Jeremy Roy, Kyle Wood, Keaton Middleton | Sharks announcement | Recalled for game/practice |
| ~9/24 | Nolan Valleau | Found on Barracuda roster (assumed TO player - D man #90) | |
| 9/23 | Tim Clifton | Put on waivers. Cleared 9/24 (so officially now in AHL). | |
| Manuel Wiederer, Vincent Praplan, Lukas Radil, Alex True, Francis Perron, Maxim Letunov, Jayden Halbgewachs, Noah Gregor; Jacob Middleton, Cavan Fitzgerald, Jeremy Roy, Nick DeSimone, Kyle Wood, Keaton Middleton | Sharks announcement | Assigned to AHL (Clifton also listed as assigned to AHL, but was put on waivers) | |
| Jake McGrew | Assigned to junior team | ||
| 9/22 | Sharks announcement | Signed to three year ELS contact | |
| 9/21 | Austin Lotz | Barracuda announcement | AHL (opening) training camp roster announced. One TO player. |
| 9/20 | Michael Brodzinski, Cody Donaghey, Zach Frye, Thomas Gregoire; Matt Fonteyne, Jonathon Martin, Colby McAuley, Filip Sandberg, Alex Schoenborn, Jeffrey Viel, Evan Weinger; Josef Korenar. And John McCarthy (although not listed) | Sharks announcement | Assigned to AHL |
| Joachim Blichfeld, Ivan Chekhovich, Vladislav Kotkov, Max Paddock | Returned to junior teams; Paddock released from TO | ||
| Justin Brazeau, Jake Gricius, Kyle Topping | Released from TO (sometime between 9/7 and 9/19) | ||
| 9/19 | Keaton Middleton | Barracuda announcement | Signs AHL deal (guessing one year). |
| 9/13 | Erik Karlsson, Francis Perron | Sharks announcement | Acquired from Ottawa for Chris Tierney, Rudolfs Balcers, Dylan DeMelo, Josh Norris, conditional 2019 second round selection and a conditional 2020 first round draft selection. "If San Jose re-signs Karlsson, Ottawa receives a conditional 2021 second round selection." |
| 9/7 | Sharks announcement | NHL Training camp roster announced (no additional TO players listed) | |
| 8/24 | Justin Brazeau, Jake Gricius, Kyle Topping, Keaton Middleton, Max Paddock | Sharks announcement | Sharks release rookie camp roster. Those listed to left are TO players. Also invited a guy on AHL deal (Gregiore). |
| 7/31 | Ryan Hamilton, JP Cote and Neil McKenney | Sharks announcement | Hired as scouts. Hamilton (pro west); Cote (pro east); McKenney (amatuer, New England). |
| 7/25 | Noah Gregor | WHL rights traded from Victoria to Prince Albert (overage, if not in AHL/ECHL). | |
| 7/18 | Ryan Merkley | Sharks announcement | Signed to 3-year ELC (can slide) |
| Alexander True | Sharks announcement | Signed to ELC (upgrade from AHL deal) | |
| Chris Tierney | Sharks announcement | Signs two year deal | |
| 7/17 | Noah Rod | Put on unconditional waivers for purpose of contract termination. | |
| 7/10 | Jeffrey Viel, Thomas Grégoire | Barracuda announcement | Signed to "multi-year" AHL deals |
| 7/7 | Tim Burke, Doug Wilson, jr | Sharks announcement | Burke named Assistant General Manager. Wilson named director of scouting. |
| Dylan DeMelo | Sharks announcement | Signs two year contract. | |
| 7/6 | Vladislav Kotkov | Sharks announcement | Signs (3 year) ELS contract (slideable as he's 18). Camp try out invitee. |
| 7/5 | Chris Tierney | Files for arbitration. Upd: hearing scheduled for 7/20. | |
| 7/4 | Jimmy Bonneau and Michael Chiasson | Barracuda announcement | Named as assistant coaches, replacing Ryan Mougenel. Also changes to equipment and athletic staffs. |
| 7/2 | Matt Fonteyne, Evan Weinger and Zach Frye | Re-signed to AHL deals? | |
| Tomas Hertl | Sharks announcement | Signs 4 year deal | |
| Joe Thornton | Sharks announcement | Signs 1 year deal | |
| 7/1 | Logan Couture | Sharks announcement | Signs 8-year extension |
| Eric Fehr (MIN), Jannik Hansen (KHL) | NHL signings | UFAs signing elsewhere |
|
| 6/28 | Tryout players: |
Sharks announcement | Participants in next week's development camp announced. |
| 6/25 | Tomas Hertl, Chris Tierney | Sharks announcement | Sharks QO the two forwards. Dylan DeMelo is NOT qualified, becomes UFA. |
| 6/23 | Linus Karlsson, Jasper Weatherby, Zachary Emond, John Leonard | Drafted 2nd-6th round | |
| 6/22 | Ryan Merkley | Drafted in first round, 21st overall | |
| Paul Martin | Sharks announcement | Put on unconditional waivers for purpose of buyout. (Clearing more cap space) | |
| 6/19 | Mike Hoffman | Sharks announcement | Sharks trade Hoffman and 2018 7th in exchange for Florida's 2019 second round pick, 2018 fourth round pick and 2018 5th round pick. |
| Mike Hoffman, Cody Donaghy | Sharks trade: Mikkel Boedker, defenceman Julius Bergman and a sixth-round choice in the 2020 entry draft for Hoffman, Donaghy and 5th round pick in 2020. | ||
| 6/14 | Kyle Wood | Sharks announcement | Wood acquired from Arizona for Adam Helewka. |
| 6/6 | Antti Suomela | Sharks announcement | Undrafted free agent from Finland signed to one year ELC. |
| 5/31 | Jacob McGrew | Bonafide offer made to retain rights. | |
| Mark Shoemaker | Not signed; returns to draft | ||
| 5/24 | Evander Kane | Sharks announcement | Signs seven year extension. |
| 5/11 | Thomas Gregoire | Signs three year deal with San Jose (but is it AHL or NHL?) | |
| 5/6 | Jeffrey Truchon-Viel | Media reports signed to two year AHL deal | |
| 4/30 | Josef Korenar | Recalled to NHL | |
| Manuel Wiederer | Assigned to German National Team | ||
| Antoine Bibeau | Recalled from AHL | ||
| 4/29 | Tim Heed | Recalled from AHL | |
| 4/27 | Radim Simek | Sharks announcement | Signed to two year extension. |
| 4/22 | Jayden Halbgewachs | Assigned to AHL from juniors | |
| 4/20 | Thomas Gregoire | Signed to AHL ATO | |
| Ivan Chekhovich | Sharks announcement | Signs three year ELS deal | |
| 4/19 | John McCarthy | Barracuda announcement | Signs one year extension with AHL |
| Antoine Bibeau | Assigned to NHL | ||
| 4/18 | Recalled to NHL (game 4) | ||
| 4/17 | Assigned to AHL. | ||
| 4/16 | Recalled to NHL. (Game 3) | ||
| Joachim Blichfeld | Assigned to AHL from WHL | ||
| Evan Weinger | Assigned to AHL from WHL | ||
| Noah Rod | Assigned to Swiss National Team (IIHF WC). | ||
| Noah Gregor | Signed to AHL ATO ("assigned" to AHL from WHL). | ||
| Nick Cafrelli | Released from ATO | ||
| 4/14 | Antoine Bibeau | Assigned to AHL (and helps clinch playoff berth) | |
| 4/12 | Nick Cafrelli | Barracuda tweet | Signed to AHL ATO (kinda emergency backup goalie) |
| Antoine Bibeau | Sharks announcement | Recalled from AHL (3rd playoff goalie) | |
| 4/9 | Matt Fonteyne | Barracuda announcement | Signed to AHL SPC (two year?). Assigned to WHL team. |
| 4/5 | David Makowski | Assigned to ECHL | |
| Noah Gregor | Sharks announcement | Reported signs 3-year ELS deal. | |
| 4/4 | Tim Heed | Assigned to AHL. | |
| 4/3 | Lukas Radil | Sharks announcement | Signed to one year deal |
| Alexander Chmelevski | Sharks announcement | Signed to ELS. Signed to AHL ATO for 17-18 season completion. | |
| Caleb Herbert, Sam Warning | Released from AHL PTO | ||
| Ivan Chekhovich | Barracuda announcement | "Assigned" to AHL, sign AHL ATOs | |
| 3/26 | Dylan Gambrell | Sharks announcement | Signed to ELS (three year). |
| 3/25 | Tim Heed | Sharks announcement | Recalled from AHL |
| 3/24 | Sharks announcement | Assigned to AHL | |
| 3/23 | Recalled from AHL | ||
| 3/22 | Noah Rod | Assigned to AHL from Europe (end of season) | |
| Tim Heed | Assigned to AHL | ||
| 3/21 | Recalled from AHL | ||
| 3/20 | Assigned to AHL | ||
| David Makowski | Recalled from ECHL to AHL | ||
| 3/19 | Joel Ward | Sharks tweet | Activated off IR. |
| 3/18 | Tim Heed | Sharks announcement | Recalled from AHL |
| 3/14 | Maxim Letunov | Sharks announcement | Signed to two year ELS. (Added to NHL roster; looks like he's getting first year "burned" this spring.) |
| 3/13 | Antoine Bibeau | Sharks announcement | Signed to two year extension |
| Tim Heed | Sharks announcement | Assigned to AHL | |
| 3/11 | Stephon Williams | Barracuda announcement | Recalled from ECHL |
| Jeremy Brodeur | Released from AHL PTO | ||
| 3/8 | Zach Frye | Barracuda announcement | Signed to AHL SPC |
| 3/2 | Evan Weinger | Barracuda announcement | Signed to AHL SPC (for balance of season? 2 years?). Loaned (back) to WHL team. |
| Vincent Praplan | Sharks announcement | Signed to one year ELS. | |
| 2/28 | Aaron Dell | Sharks announcement | Signed to two year extension. |
| 2/27 | Jeremy Brodeur | Barracuda announcement | Signed to AHL PTO |
| John McCarthy | Back from Olympics | ||
| 2/26 | Evander Kane | Sharks announcement | Acquired from Buffalo for conditional 2019 1st, 2020 4th, Daniel O'Reagan. (Condition: 1st if Sharks re-sign or win Stanley Cup; slips a year if don't make playoffs; 2nd otherwise. If Sharks keep 2020 4th, becomes 2021 3rd.) |
| Marcus Sorensen, Tim Heed | Assigned to AHL; later recalled. | ||
| 2/25 | Troy Grosenick, Brendan Bollig | Sharks announcement | Traded to Nashville for 2018 6th. |
| 2/24 | Joel Ward | Asked for 6-team "no trade" list. (May not get traded, but best to be prepared.) List provided 2/25. | |
| 2/22 | Tomas Hertl | Activated off IR | |
| Daniel O'Regan | Sharks announcement | Assigned to AHL | |
| 2/21 | Clifton Watson | Barracuda announcement | Signed to AHL PTO |
| 2/20 | Eric Fehr | Sharks announcement | Acquired from TML for 2020 7th. Rights to Barracuda, recalled from AHL. |
| Rudolfs Balcers | Assigned to AHL | ||
| 2/19 | Paul Martin, Rudolfs Balcers | Sharks announcement | Recalled from AHL |
| Tomas Hertl, Joel Ward | Put on IR | ||
| Colby McAuley, Alex Schoenborn | Barracuda announcement | Recalled from ECHL | |
| 2/18 | Daniel O'Regan | Sharks announcement | Recalled from AHL |
| 2/15 | Rudolfs Balcers | Sharks announcement / Sharks announcement | Recalled from AHL; assigned to AHL |
| Tim Heed | Sharks announcement | Recalled from AHL | |
| 2/14 | Parker Gahagen, Tyler Heinonen | Released from AHL ATO, PTO respectively | |
| Marcus Sorensen | Sharks announcement | Recalled from AHL | |
| Daniel O'Regan | Assigned to AHL | ||
| 2/13 | Tim Heed, Brandon Mashinter | Assigned to AHL | |
| Sharks announcement | Recalled from AHL | ||
| Caleb Herbert | Barracuda announcement | Signed to AHL PTO | |
| 2/11 | Rudolfs Balcers, Tim Heed | Sharks announcement / Sharks announcement | Recalled from AHL. And later (after game) returned. |
| 2/9 | Tim Heed | Assigned to AHL | |
| 2/8 | Sharks announcement | Recalled from AHL | |
| 2/7 | John McCarthy | Loaned from AHL Barracuda to Team USA for Winter Olympics, officially. | |
| Tim Heed, Marcus Sorensen | Sharks announcement | Assigned to AHL | |
| 2/6 | Emerson Clark | Released from AHL PTO, signed to AHL SPC. | |
| 2/1 | Tyler Heinonen and Sam Warning | Barracuda announcement | Signed to AHL PTOs |
| 1/29 | Danny O'Reagan | Sharks announcement | Recalled from AHL |
| 1/26 | Troy Grosenick | Returned to AHL | |
| circa 1/26 | Martin Jones | Activated off IR | |
| 1/25 | Rudolfs Balcers | Barracuda announcement | Added to Pacific Division AHL ASG |
| circa 1/24 | Martin Jones | Put on IR, retroactive to 1/18 | |
| 1/24 | Marcus Sorensen | Sharks announcement | Recalled from AHL |
| Joe Thornton | Put on IR | ||
| 1/19 | Troy Grosenick | Sharks announcement | Recalled to NHL (announced 1/20) |
| 1/17 | Gus Young | Barracuda announcement | Released from PTO |
| 1/16 | Colby McAuley, Spencer Asuchak | Barracuda announcement | Assigned to ECHL |
| Paul Martin | Sharks announcement | Clears waivers; assigned to AHL | |
| 1/15 | Put on waivers | ||
| 1/14 | Dylan DeMelo | Sharks announcement | Activated off IR |
| Marcus Sorensen | Assigned to AHL | ||
| 1/13 | Brent Burns | Sharks announcement | Named to Pacific Division NHL ASG |
| 1/6 | Marcus Sorensen | Sharks tweet | Recalled from AHL |
| Dylan DeMelo | Sharks tweet | Put on IR | |
| 1/5 | Barclay Goodrow | Sharks announcement | Activated off IR |
| Marcus Sorensen | Assigned to AHL | ||
| Colby McAuley | Recalled to AHL from ECHL | ||
| 1/4 | Antoine Bibeau | Barracuda announcement | Named to Pacific Division AHL ASG |
| 1/1 | John McCarthy | Barracuda announcement | Named to Team USA Olympic men's squad |