| Date | Player | Position | Transaction |
|---|---|---|---|
| May 19 | Matt Antonelli | 2B | Sent to Minors by NY Yankees |
| May 17 | Matt Antonelli | 2B | Acquired Off Waivers from Baltimore to NY Yankees |
| May 17 | Cesar Cabral | RP | Transferred to 60-Day DL by NY Yankees (Stress fracture, left elbow) |
| May 15 | Cody Eppley | RP | Called Up from Minors by NY Yankees |
| May 14 | Justin Thomas | RP | Sent to Minors by NY Yankees |
| May 13 | Cody Eppley | RP | Sent to Minors by NY Yankees |
| May 13 | Mariano Rivera | RP | Transferred to 60-Day DL by NY Yankees (Torn right ACL - out for season) |
| May 13 | Andy Pettitte | SP | Purchased From Minors by NY Yankees |
| May 12 | Justin Thomas | RP | Acquired Off Waivers from Boston to NY Yankees |
| May 12 | Austin Romine | C | Transferred to 60-Day DL by NY Yankees (Lower back strain) |
| May 11 | Eduardo Nunez | SS/3B/LF/2B/RF | Sent to Minors by NY Yankees |
| May 11 | Eric Chavez | 3B/1B | Removed from 7-Day DL by NY Yankees (Concussion) |
| May 10 | Brett Gardner | LF/CF | Recalled From Minors Rehab by NY Yankees |
| May 7 | Brett Gardner | LF/CF | Sent to Minors for Rehabilitation by NY Yankees |
| May 4 | D.J. Mitchell | RP | Sent to Minors by NY Yankees |
| May 4 | Cody Eppley | RP | Called Up from Minors by NY Yankees |
| May 4 | Michael Pineda | SP | Transferred to 60-Day DL by NY Yankees (Torn labrum, right shoulder) |
| May 4 | Dewayne Wise | CF/LF/RF | Purchased From Minors by NY Yankees |
| May 3 | Joba Chamberlain | RP/SP | Transferred to 60-Day DL by NY Yankees (Recovery from right ankle surgery) |
| May 3 | Jayson Nix | 3B/2B/LF/SS | Purchased From Minors by NY Yankees |
| May 3 | Eric Chavez | 3B/1B | Placed on 7-Day DL by NY Yankees (Concussion) |