| Tyler Moore | 1b | 26.161 | Washington Nationals | Syracuse (AAA) | Optioned to Syracuse (AAA) |
| Rob Johnson | c | 30.353 | St. Louis Cardinals | St. Louis Cardinals (MLB) | Contract purchased from Memphis (AAA) |
| Ty Wigginton | 1b | 35.272 | | | Released by Cardinals |
| Ryan Braun | lf | 29.236 | Milwaukee Brewers | Milwaukee Brewers (MLB) | Activated from DL |
| Aramis Ramirez | 3b | 35.015 | Milwaukee Brewers | Milwaukee Brewers (MLB) | DL-15 Sprained left knee [Chronic] |
| Omar Infante | 2b | 31.196 | Detroit Tigers | Detroit Tigers (MLB) | DL-15 Sprained left ankle [Colby Rasmus slid into him at 2b] |
| Hernan Perez | 2b | 22.106 | Detroit Tigers | Detroit Tigers (MLB) | Recalled from Erie (AA) |
| Duane Below | RP | 27.237 | Miami Marlins | Miami Marlins (MLB) | Recalled from New Orleans (AAA) |
| Caleb Thielbar | RP | 26.160 | Minnesota Twins | Minnesota Twins (MLB) | Placed on bereavement list |
| Mike Tonkin | RP | 23.233 | Minnesota Twins | Minnesota Twins (MLB) | Recalled from Rochester (AAA) |
| Brandon Lyon | RP | 33.335 | | | Released by Mets |
| Mike Adams | RP | 34.346 | Philadelphia Phillies | Philadelphia Phillies (MLB) | Transferred to 60-day DL |
| Phillippe Aumont | RP | 24.184 | Philadelphia Phillies | Lehigh Valley (AAA) | Optioned to Lehigh Valley (AAA) |
| Luis Garcia | RP | 26.161 | Philadelphia Phillies | Philadelphia Phillies (MLB) | Contract purchased from Lehigh Valley (AAA) |
| Charles Brewer | RP | 25.094 | Arizona Diamondbacks | Reno (AAA) | Optioned to Reno (AAA) |
| Adam Eaton | lf | 24.216 | Arizona Diamondbacks | Arizona Diamondbacks (MLB) | Activated from DL |
| Jackie Bradley | CF | 23.082 | Boston Red Sox | Boston Red Sox (MLB) | Recalled from Pawtucket (AAA) |
| Jose De La Torre | RP | 27.266 | Boston Red Sox | Pawtucket (AAA) | Optioned to Pawtucket (AAA) |
| Alex Wilson | RP | 26.249 | Boston Red Sox | Boston Red Sox (MLB) | DL-15 Sprained right thumb [During a game] |
| Brandon Workman | SP | 24.331 | Boston Red Sox | Boston Red Sox (MLB) | Contract purchased from Pawtucket (AAA) |
| Gonzalez Germen | RP | 25.291 | New York Mets | New York Mets (MLB) | Recalled from Las Vegas (AAA) |
| Shaun Marcum | SP | 31.208 | New York Mets | New York Mets (MLB) | DL-15 Thoracic outlet syndrome [Experienced tingling and numbness in right hand during game] |
| Josh Harrison | rf | 26.002 | Pittsburgh Pirates | Pittsburgh Pirates (MLB) | Recalled from Indianapolis (AAA) |
| Neil Walker | 2b | 27.303 | Pittsburgh Pirates | Pittsburgh Pirates (MLB) | DL-15 Strained right oblique [While taking a swing] |
| Miles Mikolas | RP | 24.321 | San Diego Padres | San Diego Padres (MLB) | Recalled from Tucson (AAA) |
| Tyson Ross | RP-SP | 26.079 | San Diego Padres | Tucson (AAA) | Optioned to Tucson (AAA) |
| Cole Gillespie | lf | 29.020 | San Francisco Giants | San Francisco Giants (MLB) | Designated for Assignment |
| Hector Sanchez | c | 23.235 | San Francisco Giants | San Francisco Giants (MLB) | DL-15 Strained right shoulder [Bothered by it since spring] |
| Kensuke Tanaka | lf | 32.051 | San Francisco Giants | San Francisco Giants (MLB) | Contract purchased from Fresno (AAA) |
| Mitchell Boggs | RP | 29.146 | Colorado Rockies | Colorado Springs (AAA) | Traded from Cardinals to Rockies for cash considerations |
| Zack Britton | SP | 25.201 | Baltimore Orioles | Norfolk (AAA) | Optioned to Norfolk (AAA) |
| Kevin Gausman | RP | 22.185 | Baltimore Orioles | Norfolk (AAA) | Optioned to Norfolk (AAA) |
| Danny Hultzen | P | 23.224 | Seattle Mariners | Tacoma (AAA) | DL-7 Injured |
| Gregory Infante | P | 26.000 | | | Released by Dodgers |
| Luis Jimenez | 1B | 31.064 | Toronto Blue Jays | Buffalo (AAA) | DL-7 Injured |
| Brian Jeroloman | C | 28.061 | Washington Nationals | Syracuse (AAA) | DL-7 Injured |
| Mike Costanzo | 3B | 29.305 | | | Released by Nationals |
| Ramon Hernandez | c | 37.051 | | | Released by Blue Jays |
| Juan Jaime | P | 25.343 | Atlanta Braves | Mississippi (AA) | DL-7 Injured |
| Daniel Tillman | P | 24.118 | Los Angeles Angels | Arkansas (AA) | DL-7 Right forearm flexor strain |
| Devin Shines | CF | 24.056 | Los Angeles Dodgers | Rancho Cucamonga (A+) | DL-7 Injured |
| Bryan Johns | 3B-2B | 24.234 | Boston Red Sox | Salem (A+) | DL-7 Injured |
| Luigi Rodriguez | CF | 20.239 | Cleveland Indians | Carolina (A+) | DL-7 Strained left shoulder |
| Francisco Jimenez | P | 24.281 | Cleveland Indians | Carolina (A+) | DL-7 Left lat strain |
| Tim Saunders | P | 23.054 | Chicago Cubs | Daytona (A+) | DL-7 Injured |
| Dail Villanueva | P | 23.168 | | | Released by Cardinals |
| Kaleb Merck | P | 23.143 | Minnesota Twins | Cedar Rapids (A) | DL-7 Injured |
| Jose Monzon | CF | 21.193 | Colorado Rockies | Tri-City (A-) | DL-7 Injured |
| Luis Nunez | P | 21.288 | | | Released by Twins |
| Bill Rankin | OF | 28.298 | Colorado Rockies | Modesto (A+) | Activated from DL |
| Stephen Branca | SS | 24.091 | San Francisco Giants | Augusta (A) | Activated from DL |
| Ben Turner | C-1B | 23.074 | San Francisco Giants | Augusta (A) | Activated from DL |
| Eury Perez | cf | 23.041 | Washington Nationals | Syracuse (AAA) | Activated from DL |
| Chris Edmondson | LF | 25.094 | Atlanta Braves | Rome (A) | Contract purchased from Rockland (CanAm) |
| Luis Durango | CF | 27.078 | | | Released by Reds |
| Jeremy Cruz | RF-3B | 26.082 | | | Released by Angels |
| Dayton Buller | C | 32.018 | | | Released by Brewers |
| Jamiel Orozco | 2B | 20.162 | | | Released by Yankees |
| Jose Azor | P | 24.271 | | | Released by Athletics |
| Franklin Contreras | 2B | 23.030 | | | Released by Athletics |
| Micah Owings | 1B | 30.285 | | | Released by Nationals |
| Sonny Gray | RP | 23.245 | Oakland Athletics | Oakland Athletics (MLB) | Contract purchased from Sacramento (AAA) |
| Dan Straily | SP | 24.221 | Oakland Athletics | Sacramento (AAA) | Optioned to Sacramento (AAA) |
| Brian Bocock | 2B-SS | 28.123 | Pittsburgh Pirates | Indianapolis (AAA) | Traded from Nationals to Pirates to complete May 17 trade for Brian Jeroloman |
| Wei-Yin Chen | SP | 27.354 | Baltimore Orioles | Baltimore Orioles (MLB) | Activated from DL |
| Joshua Stinson | RP | 25.118 | Baltimore Orioles | Baltimore Orioles (MLB) | Recalled from Norfolk (AAA) |
| Alfredo Aceves | RP | 30.214 | Boston Red Sox | Pawtucket (AAA) | Optioned to Pawtucket (AAA) |
| Pedro Beato | RP | 26.256 | Boston Red Sox | Boston Red Sox (MLB) | Recalled from Pawtucket (AAA) |
| Allen Webster | SP | 23.150 | Boston Red Sox | Pawtucket (AAA) | Optioned to Pawtucket (AAA) |
| Will Middlebrooks | 3b | 24.304 | Boston Red Sox | Boston Red Sox (MLB) | Recalled from Pawtucket (AAA) |
| Johnny Hellweg | SP-RP | 24.254 | Milwaukee Brewers | Nashville (AAA) | Optioned to Nashville (AAA) |
| Anthony Giansanti | RF | 24.285 | Chicago Cubs | Tennessee (AA) | Assigned to Tennessee (AA) |
| Chris Gutierrez | SS | 29.120 | Miami Marlins | New Orleans (AAA) | Assigned to New Orleans (AAA) |
| Greg Miclat | SS-2B | 25.353 | Texas Rangers | Frisco (AA) | Assigned to Frisco (AA) |
| Will Middlebrooks | 3b | 24.304 | Boston Red Sox | Pawtucket (AAA) | Assigned to Pawtucket (AAA) |
| Elliot Soto | SS | 23.323 | Chicago Cubs | Tennessee (AA) | Assigned to Tennessee (AA) |
| Oscar Tejeda | 2B | 23.196 | Pittsburgh Pirates | Indianapolis (AAA) | Assigned to Indianapolis (AAA) |
| Ehire Adrianza | SS | 23.323 | San Francisco Giants | Fresno (AAA) | Assigned to Fresno (AAA) |
| Jedd Gyorko | 2b | 24.290 | San Diego Padres | Lake Elsinore (A+) | Assigned to Lake Elsinore (A+) for rehab |
| Bobby Borchering | 1B-3B | 22.258 | Houston Astros | Quad Cities (A) | Assigned to Quad Cities (A) |
| Blake Brown | OF | 22.010 | Atlanta Braves | Rome (A) | Assigned to Rome (A) |
| LeVon Washington | CF | 21.350 | Cleveland Indians | Arizona Indians (Rk) | Assigned to Arizona Indians (Rk) |
| Brad Zapenas | 3B | 23.214 | Chicago Cubs | Daytona (A+) | Assigned to Daytona (A+) |
| Jantzen Witte | IF | 23.187 | Boston Red Sox | Lowell (A-) | Assigned to Lowell (A-) |
| Rob Kral | C | 24.104 | San Diego Padres | San Antonio (AA) | Assigned to San Antonio (AA) |
| Audry Perez | C | 24.199 | St. Louis Cardinals | Memphis (AAA) | Assigned to Memphis (AAA) |
| Danny Vicioso | C | 24.256 | Cincinnati Reds | Bakersfield (A+) | Assigned to Bakersfield (A+) |
| Lonnie Kauppila | SS | 21.175 | Seattle Mariners | Everett (A-) | Assigned to Everett (A-) |
| Christian Yelich | LF | 21.218 | Miami Marlins | Jacksonville (AA) | Assigned to Jacksonville (AA) |
| J.C. Linares | LF-RF | 28.306 | Boston Red Sox | Pawtucket (AAA) | Assigned to Pawtucket (AAA) |
| Jonathan Jones | 1B | 21.146 | San Francisco Giants | Arizona Giants (Rk) | Assigned to Arizona Giants (Rk) |
| Ronnier Mustelier | LF | 28.336 | New York Yankees | Gulf Coast Yankees (Rk) | Assigned to Gulf Coast Yankees (Rk) |
| Jorge Rivero | 2B | 24.185 | New York Mets | Savannah (A) | Assigned to Savannah (A) |
| Yasiel Balaguert | | 20.189 | Chicago Cubs | Arizona Cubs (Rk) | Assigned to Arizona Cubs (Rk) |
| Jonah Arenado | 3B | 18.157 | San Francisco Giants | Arizona Giants (Rk) | |
| Johnathan Linares | | 20.072 | Los Angeles Dodgers | Arizona Dodgers (Rk) | |
| Alberti Chavez | | 17.355 | Texas Rangers | Arizona Rangers (Rk) | Assigned to Arizona Rangers (Rk) |
| Matt Wright | P | 31.119 | Arizona Diamondbacks | Reno (AAA) | Contract purchaed from Sugar Land (Atlantic) |
| Carlos Marmol | RP | 30.269 | Los Angeles Dodgers | Rancho Cucamonga (A+) | Assigned to Rancho Cucamonga (A+) |
| Eddie Gamboa | P | 28.201 | Baltimore Orioles | Norfolk (AAA) | Assigned to Norfolk (AAA) |
| Charlie Haeger | P | 29.295 | Boston Red Sox | Pawtucket (AAA) | Assigned to Pawtucket (AAA) |
| Matt Jackson | P | 25.205 | San Diego Padres | Lake Elsinore (A+) | Assigned to Lake Elsinore (A+) |
| Alex Sogard | P | 25.351 | Houston Astros | Oklahoma City (AAA) | Assigned to Oklahoma City (AAA) |
| Ashur Tolliver | P | 25.168 | Baltimore Orioles | Frederick (A+) | Assigned to Frederick (A+) |
| Lee Hyde | P | 28.146 | Cincinnati Reds | Pensacola (AA) | Assigned to Pensacola (AA) |
| Clay Zavada | P | 29.012 | San Diego Padres | San Antonio (AA) | Assigned to San Antonio (AA) |
| Justin Miller | P | 26.027 | Texas Rangers | Round Rock (AAA) | Assigned to Round Rock (AAA) |
| Carlos Gutierrez | P | 26.291 | Chicago Cubs | Tennessee (AA) | Assigned to Tennessee (AA) |
| Danny Duffy | P | 24.201 | Kansas City Royals | Omaha (AAA) | Assigned to Omaha (AAA) |
| Pedro Viola | P | 30.011 | Oakland Athletics | Sacramento (AAA) | Assigned to Sacramento (AAA) |
| Matt Magill | SP | 23.242 | Los Angeles Dodgers | Albuquerque (AAA) | Assigned to Albuquerque (AAA) |
| Yohan Flande | P | 27.164 | Atlanta Braves | Gwinnett (AAA) | Assigned to Gwinnett (AAA) |
| Chia-Jen Lo | P | 27.094 | Houston Astros | Corpus Christi (AA) | Assigned to Corpus Christi (AA) |
| John Church | P | 26.248 | New York Mets | Las Vegas (AAA) | Assigned to Las Vegas (AAA) |
| Matt Lollis | P | 22.302 | San Diego Padres | Tucson (AAA) | Assigned to Tucson (AAA) |
| Hector Hernandez | P | 22.140 | St. Louis Cardinals | Palm Beach (A+) | Assigned to Palm Beach (A+) |
| Travis Miller | P | 23.117 | St. Louis Cardinals | Palm Beach (A+) | Assigned to Palm Beach (A+) |
| Ronan Pacheco | P | 24.346 | Atlanta Braves | Mississippi (AA) | Assigned to Mississippi (AA) |
| Nolan Sanburn | OF | 21.355 | Oakland Athletics | Beloit (A) | Assigned to Beloit (A) |
| Eric Cendejas | P | 25.164 | Los Angeles Angels | Salt Lake (AAA) | Assigned to Salt Lake (AAA) |
| Josh Davis | p | 22.249 | Chicago Cubs | Arizona Cubs (Rk) | Assigned to Arizona Cubs (Rk) |
| Brian Johnson | P | 22.215 | Boston Red Sox | Gulf Coast Red Sox (Rk) | Assigned to Gulf Coast Red Sox (Rk) |
| Mark Leiter | P | 22.119 | Philadelphia Phillies | Gulf Coast Phillies (Rk) | Assigned to Gulf Coast Phillies (Rk) |
| James Stokes | P | 22.274 | Cleveland Indians | Lake County (A) | Assigned to Lake County (A) |
| James Campbell | P | 21.294 | Los Angeles Dodgers | Great Lakes (A) | Assigned to Great Lakes (A) |
| Trey Lang | P | 21.053 | Chicago Cubs | Arizona Cubs (Rk) | Assigned to Arizona Cubs (Rk) |
| Brady Adamek | P | 23.088 | St. Louis Cardinals | Peoria (A) | Assigned to Peoria (A) |
| Jairo Diaz | P | 22.044 | Los Angeles Angels | Inland Empire (A+) | Assigned to Inland Empire (A+) |
| Robert Ravago | P | 22.309 | Miami Marlins | Batavia (A-) | Assigned to Batavia (A-) |
| Nicholas Hanson | P | 21.086 | Philadelphia Phillies | Lakewood (A) | Assigned to Lakewood (A) |
| Trevor Graham | P | 21.232 | Chicago Cubs | Arizona Cubs (Rk) | |
| Alex Moore | P | 22.175 | Milwaukee Brewers | Brevard County (A+) | Assigned to Brevard County (A+) |
| Mike Piazza | P | 26.228 | Los Angeles Angels | Arkansas (AA) | DL-7 Mild right forearm strain |
| Erich Weiss | IF | 21.303 | Pittsburgh Pirates | Jamestown (A-) | Signed out of draft |
| Mike Kvasnicka | 3B | 24.215 | | | Released by Twins |
| Wes Alsup | P | 26.227 | | | signed by Southern Illinois (Frontier) |
| Sean Smedley | C-1B | 22.285 | Tampa Bay Rays | Gulf Coast Rays (Rk) | Assigned to GCL Rays (Rk) |
| Taylor Morton | P | 21.205 | | | Announced retirement |
