| | C | Sent to Minors for Rehabilitation (Signed) |
| | RP | Purchased From Minors (Signed) |
| | SP | Sent to Minors for Rehabilitation (Signed) |
| | RP | Designated for Assignment (Signed) |
| | RP | Removed From 10-Day DL (Viral infection) |
| | RP | Recalled From Minors Rehab (Signed) |
| | SP | Sent to Minors (Signed) |
| | LF | Designated for Assignment (Signed) |
| | SP | Called Up from Minors (Signed) |
| | SS | Removed From 10-Day DL (Strained right oblique/lower back) |
| | SP | Placed on 10-Day DL (Right hamstring strain) |
| | RF | Signed to a Minor League Contract (Signed) |
| | SP | Called Up from Minors (Signed) |
| | RP | Placed on 10-Day DL (Right shoulder inflammation) |
| | SS | Recalled From Minors Rehab (Signed) |
| | RP | Outrighted to Minors (Signed) |
| | SP | Sent to Minors (Signed) |
| | SP | Removed From 10-Day DL (Right heel infection) |
| | SP | Recalled From Minors Rehab (Signed) |
| | SP | Sent to Minors for Rehabilitation (Signed) |
| | RP | Designated for Assignment (Signed) |
| | SP | Called Up from Minors (Signed) |
| | RP | Sent to Minors for Rehabilitation (Signed) |
| | SP | Sent to Minors for Rehabilitation (Signed) |
| | C | Outrighted to Minors (Signed) |
| | SS | Sent to Minors for Rehabilitation (Signed) |
| | RP | Outrighted to Minors (Signed) |
| | C | Designated for Assignment (Signed) |
| | RP | Purchased From Minors (Signed) |
| | RP | Traded (for future considerations) To |
| | RP | Placed on 10-Day DL (Viral infection) |
| | RP | Designated for Assignment (Signed) |
| | C | Purchased From Minors (Signed) |
| | SP | Purchased From Minors (Signed) |
| | C | Traded (for INF Ryan Schimpf) From |
| | RP | Designated for Assignment (Signed) |
| | 3B | Traded (for C Carlos Perez) To |
| | RP | Sent to Minors (Signed) |
| | 3B | NTR - Called Up From Minors (Signed) |
| | RP | Purchased From Minors (Signed) |
| | RP | Transferred to 60-Day DL (Left elbow surgery - out for season) |
| | C | Placed on 10-Day DL (Left oblique strain) |
| | RP | Purchased From Minors (Signed) |
| | SP | Placed on 10-Day DL (Right heel infection) |
| | RP | Placed on 10-Day DL (Left elbow surgery - out for season) |
| | SP | Placed on 10-Day DL (Sprained left ankle) |
| | SS | Placed on 10-Day DL (Strained right oblique/lower back) |
| | 3B | Sent to Minors (Signed) |
| | SP | Cleared Waivers and Became a Free Agent (Signed) |
| | CF | Signed as Free Agent (one-year contract) |
| | 2B | Signed as Free Agent (one-year contract) |
| | SP | Released (Signed) |
| | SP | Sent to Minors (Signed) |
| | SP | Sent to Minors (Signed) |
| | SP | Sent to Minors (Signed) |
| | 3B | Sent to Minors (Signed) |
| | RP | Sent to Minors (Signed) |
| | SP | Signed to a Minor League Contract (Signed) |
| | RF | Signed to a Minor League Contract (Signed) |
| | SP | Sent to Minors (Signed) |
| | SP | Sent to Minors (Signed) |
| | RP | Outrighted to Minors (Signed) |
| | 3B | Traded (for future considerations) From |
| | RP | Sent to Minors (Signed) |
| | RP | Sent to Minors (Signed) |
| | RP | Outrighted to Minors (Signed) |
| | RP | Designated for Assignment (Signed) |
| | RP | Signed as Free Agent (one-year contract) |
| | C | Signed as Free Agent (one-year contract) |
| | SP | Signed (loses arbitration) |
| | LF | Signed to a Minor League Contract (Signed) |
| | RP | Signed to a Minor League Contract (Signed) |
| | RP | Traded (for future considerations) From |
| | RP | Signed (avoids arbitration) |
| | RP | Signed (avoids arbitration) |
| | RP | Signed (avoids arbitration) |
| | 3B | Signed to Play in Korea (LG Twins) |
| | 3B | Cleared Waivers and Became a Free Agent (Signed) |
| | 3B | Released (Signed) |
| | RP | Outrighted to Minors (Signed) |
| | C | Signed to a Minor League Contract (Signed) |
| | CF | Signed to a Minor League Contract (Signed) |
| | 1B | Cleared Waivers and Became a Free Agent (Signed) |
| | RP | Designated for Assignment (Signed) |
| | LF | Traded (for future considerations) From |
| | 1B | Released (Signed) |
| | 1B | Traded (for OF Matt Kemp, five-player deal) From |
| | LF | Traded (for 1B Adrian Gonzalez, five-player deal) To |
| | 1B | Designated for Assignment (Signed) |
| | SS | Traded (for OF Matt Kemp, five-player deal) From |
| | SP | Traded (for OF Matt Kemp, five-player deal) From |
| | SP | Traded (for OF Matt Kemp, five-player deal) From |
| | SS | Drafted Via Rule 5 (Triple-A phase) |
| | 2B | Signed to a Minor League Contract (Signed) |
| | 2B | Free Agent - No Contract Offer (non-tendered) |
| | CF | Free Agent - No Contract Offer (non-tendered) |
| | 1B | Free Agent - No Contract Offer (non-tendered) |
| | SP | Acquired Off Waivers (Signed) From |
| | RP | Signed (avoids arbitration) |
| | RP | Traded (for LHP Justin Kelly) To |
| | RF | Signed to a Minor League Contract (Signed) |
| | RP | Acquired Off Waivers (Signed) From |
| | SP | Purchased From Minors (Signed) |
| | RP | Traded (for cash considerations) From |
| | RP | Released (Signed) |
| | RP | Declared Free Agency (Signed) |
| | SP | Declared Free Agency (declined player option) |
| | SP | Released (Signed) |
| | C | Acquired Off Waivers (Signed) To |
| | 2B | Acquired Off Waivers (Signed) To |
| | C | Refused Minor League Assignment - Free Agent (Signed) |
| | C | Outrighted to Minors (Signed) |
| | C | Signed (team option exercised) |
| | RP | Outrighted to Minors (Signed) |
| | RP | Refused Minor League Assignment - Free Agent (Signed) |
| | RP | Outrighted to Minors (Signed) |
| | RP | Returned Drafted Player (declined by Cubs) |
| | RP | Declared Free Agency (Signed) |
| | RP | Called Up from Minors (Signed) |
| | SP | Called Up from Minors (Signed) |
| | RP | Called Up from Minors (Signed) |
| | RP | Called Up from Minors (Signed) |
| | SP | Called Up from Minors (Signed) |
| | C | Purchased From Minors (Signed) |