| Stephen McGee | C | 27.170 | Los Angeles Angels | Salt Lake (AAA) | Signed to Minor League Contract |
| Eric Young | CF | 33.063 | Los Angeles Angels | Los Angeles Angels (MLB) | Contract purchased from minors |
| Jabari Blash | LF-RF | 29.023 | Los Angeles Angels | Salt Lake (AAA) | Assigned to Salt Lake (AAA) |
| John Lamb | SP | 28.017 | Los Angeles Angels | Los Angeles Angels (MLB) | Transferred to 60-day DL |
| Raimel Tapia | CF | 24.173 | Colorado Rockies | Albuquerque (AAA) | Assigned to Albuquerque (AAA) |
| David Dahl | LF | 24.117 | Colorado Rockies | Albuquerque (AAA) | Activated from DL and assigned to Albuquerque (AAA) |
| Michael Dunn | RP | 33.065 | Colorado Rockies | Colorado Rockies (MLB) | Transferred to 60-day DL |
| German Marquez | SP | 23.155 | Colorado Rockies | Colorado Rockies (MLB) | Reinstated to active roster |
| Asdrubal Cabrera | 2B | 32.256 | Philadelphia Phillies | Philadelphia Phillies (MLB) | Traded from Mets to Phillies for Franklyn Kilome |
| Franklyn Kilome | P | 23.032 | New York Mets | Binghamton (AA) | Traded from Phillies to Mets for Asdrubal Cabrera |
| Cole Hamels | SP | 34.213 | Chicago Cubs | Chicago Cubs (MLB) | Traded from Rangers to Cubs for Eddie Butler and Rollie Lacy |
| Rollie Lacy | P | 23.010 | Texas Rangers | Down East (A+) | Traded from Cubs with Eddie Butler to Cubs for Cole Hamels |
| Eddie Butler | RP | 27.136 | Texas Rangers | Texas Rangers (MLB) | Traded from Cubs with Rollie Lacy to Rangers for Cole Hamels |
| Evan Phillips | p | 23.319 | Atlanta Braves | Gwinnett (AAA) | Assigned to Gwinnett (AAA) |
| Ranger Suarez | p | 22.336 | Philadelphia Phillies | Lehigh Valley (AAA) | Assigned to Lehigh Valley (AAA) |
| Yacksel Rios | P | 25.030 | Philadelphia Phillies | Philadelphia Phillies (MLB) | Recalled from Lehigh Valley (AAA) |
| Adam Morgan | RP | 28.150 | Philadelphia Phillies | Philadelphia Phillies (MLB) | Placed on the paternity leave list |
| Roman Quinn | SS | 25.074 | Philadelphia Phillies | Philadelphia Phillies (MLB) | Recalled from Lehigh Valley (AAA) |
| Taylor Motter | SS | 28.312 | Minnesota Twins | Minnesota Twins (MLB) | Outrighted to minors |
| Eduardo Escobar | SS | 29.203 | Arizona Diamondbacks | Arizona Diamondbacks (MLB) | Traded from Twins to Diamondbacks for Ernie De La Trinidad, Gabriel Maciel and Jhoan Duran |
| Ernie De La Trinidad | OF | 22.206 | Minnesota Twins | Minnesota Twins (MLB) | Traded from Diamondbacks with Gabriel Maciel and Jhoan Duran to Twins for Eduardo Escobar |
| Gabriel Maciel | OF | 19.198 | Minnesota Twins | Minnesota Twins (MLB) | Traded from Diamondbacks with Ernie De La Trinidad and Jhoan Duran to Twins for Eduardo Escobar |
| Jhoan Duran | P | 20.200 | Minnesota Twins | Minnesota Twins (MLB) | Traded from Diamondbacks with Gabriel Maciel and Ernie De La Trinidad to Twins for Eduardo Escobar |
| John Barbato | RP | 26.016 | Detroit Tigers | Toledo (AAA) | Activated from DL and assigned to Toledo (AAA) |
| Corey Oswalt | P | 24.327 | New York Mets | Las Vegas (AAA) | Assigned to Las Vegas (AAA) |
| Matt Den Dekker | CF-OF | 30.352 | New York Mets | New York Mets (MLB) | Designated for Assignment |
| Ildemaro Vargas | SS | 27.011 | Arizona Diamondbacks | Arizona Diamondbacks (MLB) | Recalled from Reno (AAA) |
| Jack Reinheimer | SS | 26.008 | Arizona Diamondbacks | Reno (AAA) | Designated for Assignment |
| Jake Lamb | 3B | 27.291 | Arizona Diamondbacks | Arizona Diamondbacks (MLB) | DL-10 Left shoulder contusion |
| Michael Feliz | RP | 25.029 | Pittsburgh Pirates | Indianapolis (AAA) | Assigned to Indianapolis (AAA) |
| Alex Mcrae | P | 25.112 | Pittsburgh Pirates | Pittsburgh Pirates (MLB) | Recalled from Indianapolis (AAA) |
| Alec Mills | RP | 26.240 | Chicago Cubs | Chicago Cubs (MLB) | Recalled from Iowa (AAA) |
| Addison Reed | CL | 29.212 | Minnesota Twins | Rochester (AAA) | Assigned to Rochester (AAA) for rehab |
| Kyle Crockett | RP | 26.225 | Cincinnati Reds | Cincinnati Reds (MLB) | Designated for Assignment |
| Austin Brice | RP | 26.038 | Cincinnati Reds | Louisville (AAA) | Assigned to Louisville (AAA) |
| Wandy Peralta | RP | 27.000 | Cincinnati Reds | Cincinnati Reds (MLB) | Recalled from Louisville (AAA) |
| Keury Mella | P | 24.359 | Cincinnati Reds | Cincinnati Reds (MLB) | Recalled from Louisville (AAA) |
| Brett Cecil | RP | 32.025 | St. Louis Cardinals | St. Louis Cardinals (MLB) | DL-10 Right foot inflammation |
| Greg Holland | CL | 32.249 | St. Louis Cardinals | St. Louis Cardinals (MLB) | Designated for Assignment |
| Tyler Lyons | RP | 30.157 | St. Louis Cardinals | St. Louis Cardinals (MLB) | Designated for Assignment |
| Dakota Hudson | RP | 23.315 | St. Louis Cardinals | St. Louis Cardinals (MLB) | Contract purchased from minors |
| Daniel Poncedeleon | P | 26.193 | St. Louis Cardinals | St. Louis Cardinals (MLB) | Recalled from Memphis (AAA) |
| Tyler Webb | P | 28.007 | St. Louis Cardinals | St. Louis Cardinals (MLB) | Recalled from Memphis (AAA) |
| Luke Weaver | SP | 24.340 | St. Louis Cardinals | St. Louis Cardinals (MLB) | Recalled from Peoria (A) |
| Sam Tuivailala | RP | 25.281 | Seattle Mariners | Seattle Mariners (MLB) | Traded from Cardinals to Mariners for Seth Elledge |
| Seth Elledge | P | 22.068 | St. Louis Cardinals | St. Louis Cardinals (MLB) | Traded from Mariners to Cardinals for Sam Tuivailala |
| Tyler Wade | SS | 23.246 | New York Yankees | New York Yankees (MLB) | Recalled from Scranton/Wilkes-Barre (AAA) |
| Aaron Judge | RF | 26.092 | New York Yankees | New York Yankees (MLB) | DL-10 Right wrist fracture |
| Chris Volstad | P | 31.307 | Chicago White Sox | Chicago White Sox (MLB) | Designated for Assignment |
| Tyler Danish | P | 23.318 | Chicago White Sox | Chicago White Sox (MLB) | Contract purchased from minors |
| Thyago Vieira | P | 25.201 | Chicago White Sox | Chicago White Sox (MLB) | Recalled from Charlotte (AAA) |
| Austin Jackson | CF | 31.176 | New York Mets | New York Mets (MLB) | Signed to Minor League Contract |
| Austin Jackson | CF | 31.176 | New York Mets | New York Mets (MLB) | Signed to 1-year contract for 2018-2018 ($0m) [Free Agent] |
| Jason Vargas | SP | 35.175 | New York Mets | New York Mets (MLB) | Activated from DL |
| Max Kuhns | P-IF | 23.350 | New York Mets | Gulf Coast Mets (Rk) | Assigned to Gulf Coast Mets (Rk) |
| Anderson Franco | 3B | 20.346 | Washington Nationals | Gulf Coast Nationals (Rk) | Assigned to Gulf Coast Nationals (Rk) |
| Dalton Geekie | P | 23.297 | Chicago Cubs | Arizona Cubs (Rk) | Assigned to Arizona Cubs (Rk) |
| Gustavo Polanco | C | 21.044 | Chicago Cubs | Arizona Cubs (Rk) | Assigned to Arizona Cubs (Rk) |
| Edwin Yon | OF | 20.003 | Houston Astros | Greeneville (Rk) | Assigned to Greeneville (Rk) |
| Francisco Lopez | P | 24.164 | Cleveland Indians | Mahoning Valley (A-) | Assigned to Mahoning Valley (A-) |
| Jayson Rose | P | 22.158 | Milwaukee Brewers | Arizona Brewers (Rk) | Assigned to Arizona Brewers (Rk) |
| Mike Blazek | P | 29.133 | Arizona Diamondbacks | Arizona Diamondbacks (Rk) | Assigned to Arizona Diamondbacks (Rk) |
| Satchel McElroy | OF | 21.348 | Cincinnati Reds | Billings (Rk) | Assigned to Billings (Rk) |
| Dauri Moreta | P | 22.103 | Cincinnati Reds | Dayton (A) | Assigned to Dayton (A) |
| Joey Marciano | P | 23.197 | San Francisco Giants | Salem-Keizer (A-) | Assigned to Salem-Keizer (A-) |
| Domenic Mazza | P | 23.363 | San Francisco Giants | San Jose (A+) | Assigned to San Jose (A+) |
| Conner Menez | P | 23.059 | San Francisco Giants | Richmond (AA) | Assigned to Richmond (AA) |
| Jin-De Jhang | C | 25.071 | Pittsburgh Pirates | West Virginia (A-) | Assigned to West Virginia (A-) |
| Jerry Seitz | C | 23.303 | New York Yankees | Charleston (sc) (A) | Assigned to Charleston (sc) (A) |
| Will Stewart | P | 21.013 | Philadelphia Phillies | Lakewood (A) | Assigned to Lakewood (A) |
| Kellin Deglan | C | 26.085 | New York Yankees | Tampa (A+) | Assigned to Tampa (A+) |
| Andrew Brown | P | 20.276 | Philadelphia Phillies | Clearwater (A+) | Assigned to Clearwater (A+) |
| Cam Balego | IF | 23.045 | Chicago Cubs | South Bend (A) | Activated from disabled list |
| Aaron Quillen | P | 24.220 | Cincinnati Reds | Dayton (A) | DL-7 Injured |
| Wood Myers | 2B-SS | 23.289 | St. Louis Cardinals | Peoria (A) | Activated from disabled list |
| Andres Luna | OF | 21.010 | St. Louis Cardinals | Peoria (A) | DL-7 Injured |
| JD Busfield | P | 23.083 | Tampa Bay Rays | Bowling Green (A) | Assigned to Bowling Green (A) |
| Rashad Crawford | OF | 24.285 | New York Yankees | Trenton (AA) | Assigned to Trenton (AA) |
| Ian Oxnevad | P | 21.297 | St. Louis Cardinals | Palm Beach (A+) | Activated from disabled list |
| Spencer Jones | P | 23.308 | Tampa Bay Rays | Montgomery (AA) | Assigned to Montgomery (AA) |
| Evan Kruczynski | P | 23.118 | St. Louis Cardinals | Springfield (AA) | Assigned to Springfield (AA) |
| Casey Meisner | P | 23.066 | St. Louis Cardinals | Springfield (AA) | Assigned to Springfield (AA) |
| Tyler Hill | OF | 22.145 | Boston Red Sox | Salem (A+) | Activated from disabled list |
| Erlin Cerda | 2B | 24.083 | Cleveland Indians | Lynchburg (A+) | Activated from disabled list |
| Ernie Clement | IF | 22.127 | Cleveland Indians | Lynchburg (A+) | DL-7 Injured |
| Carlos Tovar | SS | 22.342 | Boston Red Sox | Salem (A+) | DL-7 Injured |
| Nick Lovullo | SS | 24.238 | Boston Red Sox | Salem (A+) | Assigned to Salem (A+) |
| Connor Overton | P | 25.003 | San Francisco Giants | San Jose (A+) | DL-7 Injured |
| Reid Humphreys | SS | 23.248 | Colorado Rockies | Hartford (AA) | Assigned to Hartford (AA) |
| Frank Rubio | P | 23.095 | San Francisco Giants | Sacramento (AAA) | Assigned to Sacramento (AAA) |
| Seth Elledge | P | 22.068 | St. Louis Cardinals | Springfield (AA) | Assigned to Springfield (AA) |
| Matt Pearce | P | 24.153 | St. Louis Cardinals | Springfield (AA) | Activated from disabled list |
| Connor Jones | P | 23.290 | St. Louis Cardinals | Memphis (AAA) | Assigned to Memphis (AAA) |
| Austin Warner | P | 24.030 | St. Louis Cardinals | Memphis (AAA) | Assigned to Memphis (AAA) |
| Richie Shaffer | 3B | 27.134 | Milwaukee Brewers | Biloxi (AA) | Assigned to Biloxi (AA) |
| JD Martin | P | 35.206 | Tampa Bay Rays | Montgomery (AA) | DL-7 Injured |
| Rodrigo Takahashi | P | 21.185 | Arizona Diamondbacks | Jackson (AA) | DL-7 Injured |
| Matt Jones | C | 26.104 | Arizona Diamondbacks | Jackson (AA) | Activated from disabled list |
| Rafael De Paula | P | 27.125 | Cincinnati Reds | Louisville (AAA) | Assigned to Louisville (AAA) |
| Ryan Burr | P | 24.060 | Chicago White Sox | Charlotte (AAA) | Assigned to Charlotte (AAA) |
| Eddie Gamboa | P | 33.218 | Baltimore Orioles | Bowie (AA) | Assigned to Bowie (AA) |
| Marc Magliaro | P | 28.160 | Colorado Rockies | Hartford (AA) | DL-7 Injured |
| Jhalan Jackson | OF | 25.165 | New York Yankees | Trenton (AA) | Activated from disabled list |
| Sam Tidaback | C | 24.294 | Colorado Rockies | Hartford (AA) | Activated from disabled list |
| Michael Kelly | P | 25.324 | Baltimore Orioles | Norfolk (AAA) | Assigned to Norfolk (AAA) |
| Matt Kent | P | 25.317 | Boston Red Sox | Portland (AA) | Assigned to Portland (AA) |
| Lucas Long | P | 25.293 | Baltimore Orioles | Bowie (AA) | Assigned to Bowie (AA) |
| Zack Zehner | OF | 25.353 | New York Yankees | Scranton/Wilkes-Barre (AAA) | Assigned to Scranton/Wilkes-Barre (AAA) |
| Devyn Bolasky | OF | 25.184 | New York Yankees | Scranton/Wilkes-Barre (AAA) | Assigned to Scranton/Wilkes-Barre (AAA) |
| Matthew Grimes | P | 26.327 | Baltimore Orioles | Norfolk (AAA) | Assigned to Norfolk (AAA) |
| Chris Heston | P | 30.108 | - | | Released by Giants |
| Ali Solis | C | 30.302 | Chicago Cubs | Iowa (AAA) | Placed on temporarily inactive list |
| Austin House | P | 27.184 | Colorado Rockies | Albuquerque (AAA) | DL-7 Injured |
| Cody Decker | 1B | 31.191 | Arizona Diamondbacks | Reno (AAA) | Activated from disabled list |
| Mike Kickham | P | 29.227 | Miami Marlins | New Orleans (AAA) | DL-7 Injured |
| Stephen McGee | C | 27.170 | Los Angeles Angels | Salt Lake (AAA) | Assigned to Salt Lake (AAA) |
| Eric Sogard | 2B | 32.066 | Milwaukee Brewers | Colorado Springs (AAA) | Signed to Minor League Contract |
| Logan Moon | OF | 26.163 | - | | Released by Royals |
| Chad Huffman | OF | 33.089 | Detroit Tigers | Toledo (AAA) | DL-7 Injured |
| Juan Graterol | C | 29.163 | Minnesota Twins | Rochester (AAA) | DL-7 Injured |
| Armando Araiza | C | 25.038 | Baltimore Orioles | Norfolk (AAA) | Activated from disabled list |
| Gunnar Heidt | IF | 25.318 | Toronto Blue Jays | Buffalo (AAA) | Reinstated to active roster |
| Evan Mitchell | P | 26.131 | Cincinnati Reds | Louisville (AAA) | Activated from disabled list |
| Christopher Kirsch | P | 26.255 | - | | Released by Rays |
| Andrew Kittredge | P | 28.132 | Tampa Bay Rays | Tampa Bay Rays (MLB) | Recalled from Durham (AAA) |
| Jacob Barnes | RP | 28.104 | Milwaukee Brewers | Colorado Springs (AAA) | Assigned to Colorado Springs (AAA) |
| Christian Aragon | P | 22.009 | Los Angeles Angels | Orem (Rk) | Assigned to Orem (Rk) |
| Brennon Kaleiwahea | C | 23.??? | Chicago Cubs | Arizona Cubs (Rk) | Assigned to Arizona Cubs (Rk) |
| Caleb Knight | C | 22.207 | Chicago Cubs | Eugene (A-) | Assigned to Eugene (A-) |
| Troy Miller | P | 21.164 | Toronto Blue Jays | Vancouver (A-) | Assigned to Vancouver (A-) |
| Gabriel Mora | C | 18.056 | New York Yankees | Staten Island (A-) | Assigned to Staten Island (A-) |
| Trevor Horn | P | 22.215 | San Francisco Giants | San Jose (A+) | Assigned to San Jose (A+) |
| Travis Perry | P | 21.141 | San Francisco Giants | San Jose (A+) | Assigned to San Jose (A+) |
| Reid Love | P | 26.073 | Baltimore Orioles | Bowie (AA) | DL-7 Injured |
| Chris Lee | P | 25.344 | Baltimore Orioles | Norfolk (AAA) | Activated from disabled list |
| Carlos Guzman | P | 21.180 | Seattle Mariners | Arizona Mariners (Rk) | Assigned to Arizona Mariners (Rk) |
| Jonny Venters | P | 33.129 | Atlanta Braves | Atlanta Braves (MLB) | Traded from Rays to Braves for Intl Signing Bonus Money |
| Ryan Pressly | RP | 29.224 | Houston Astros | Houston Astros (MLB) | Traded from Twins to Astros for Gilberto Celestino and Jorge Alcala |
