| 2012 | NSL | Trades | |||
| Trade # | Date | Team 1 | Players/Picks | Team 2 | Players/Picks |
| 1 | 1/6/2012 | PA. | Scott Sizemore | Magic City | Chad Qualls |
| #4 Rookie | #3 Rookie | ||||
| 2 | 1/6/2012 | Magic City | Brendan Ryan | New England | Casey Janssen |
| Jon Rauch | |||||
| 3 | 1/6/2012 | Albany | Adam Lind | New England | A. Wainwright (nc) |
| Mike Gonzalez | Esmerling Vasquez | ||||
| 4 | 1/7/2012 | Canaan | Lou Marson | New England | Sean O'Sullivan |
| Fernando Rodney | Drew Butera | ||||
| Blake DeWitt | Laynce Nix | ||||
| Ross Gload | |||||
| 5 | 1/8/2012 | Cleveland | Francisco Liriano | Canaan | Jeff Karstens |
| Clay Hensley | |||||
| #1 FA 2012 | |||||
| 6 | 1/9/2012 | NEE | Brendan Ryan | York | Miguel Tejada |
| Aaron Rowand | Clint Barmes | ||||
| Maicer Izturis | Chris Ray | ||||
| #2 FA Long. 2012 | #3 FA 2012 | ||||
| #2 FA Glen 2012 | |||||
| D.J. Carrasco | |||||
| 7 | 1/12/2012 | Vermont | Jeff Samardzija | New England | R.A. Dickey |
| Mike Leake | Jim Thome | ||||
| #3, 4 Rookie | Eric O'Flaherty | ||||
| 8 | 1/12/2012 | Vermont | Jason Vargas | York | Carlos Ruiz |
| Rickey Nolasco | Kyle Lohse | ||||
| Gerald Laird | |||||
| #1 Rookie | |||||
| 9 | 1/12/2012 | NEE | Marco Scutaro | East York | Chris Capuano |
| Jhoulys Chacin | Carl Crawford | ||||
| Mike Adams | Chris Perez | ||||
| Brian Fuentes | #5 Rookie | ||||
| 10 | 1/12/2012 | Duneland | Mike Young | Magic City | Felipe Paulino |
| Jered Weaver | Scott Sizemore | ||||
| JR Towles | Jordan Zimmerman | ||||
| Rony Cedeno | |||||
| Kevin Kouzmanoff | |||||
| Joel Zumaya (nc) | |||||
| #4,5 Rookie | |||||
| PA #4 Rookie | |||||
| #1 FA 2013 | |||||
| 11 | 1/13/2012 | Vermont | Jordan Walden | Green Mt. | Mariano Rivera |
| 12 | 1/15/2012 | PA | Tommy Hunter | NEE | David Pauley |
| #1 FA NEE | #5 Rookie East York | ||||
| 13 | 1/16/2012 | KAL | Pablo Sandoval | Albany | #1,2 Rookie |
| #1 FA 2012 | |||||
| 14 | 1/16/2012 | Grn Mt. | #1 FA 2012 Canaan | Canaan | Matt Treanor |
| #2 FA 2013 | #1 FA 2013 | ||||
| 15 | 1/16/2012 | Clev. | Dustin McGowan (nc) | Sp. Lake | John Lannan |
| S.Choo | |||||
| 16 | 1/22/2012 | Sparrow L. | Jake Arrieta | Kalamazoo | Jamey Wright |
| #2 FA 2013 S.L. | Mike Dunn | ||||
| 17 | 1/22/2012 | Canaan | Jerry Hairston | Muncie | Juan Rivera |
| Mitchell Boggs | Jerry Blevins | ||||
| David Purcey | |||||
| 18 | 1/23/2012 | TMI | Jason Varitek | Keystone | Huston Street |
| 19 | 1/27/2012 | Magic City | Jered Weaver | NEE | Yovani Gallardo |
| Alexi Casilla | Jonny Venters | ||||
| 20 | 1/28/2012 | East York | Jeremy Guthrie | Glenville | Hiroki Kuroda |
| #1 Rookie | Vincente Padilla nc | ||||
| #3 Rookie | |||||
| 21 | 1/31/2012 | Magic City | Mitch Talbot | Crosstown | Andy Sonnanstine |
| 22 | 1/31/2012 | TMI | Chris Volstad | Crosstown | Vernon Wells |
| #1 Rookie | #1 Rookie | ||||
| 23 | 2/1/2012 | Magic City | Jorge de la Rosa | Glenville | Cole Hamels |
| Rich Harden | #4 Rookie | ||||
| Carlos Villanueva | |||||
| #1 Rookie | |||||
| #2,3 FA 2013 | |||||
| 24 | 2/3/2012 | North York | Darren Oliver | Cleveland | #2 Rookie |
| 25 | 2/3/2012 | PA. | Kevin Correia | York | Brett Wallace |
| 26 | 2/4/2012 | York | Eric Young | NEE | Blake DeWitt |
| Tim Byrdak | Jon Rauch | ||||
| Glenvile #2 FA 2012 | York #3 FA 2012 | ||||
| 27 | 2/5/2012 | East York | Omar Vizquel | Canaan | Jerry Blevins |
| #4 Rookie | Kevin Slowey nc | ||||
| 28 | 2/9/2012 | East York | #3 Rookie | Duneland | Bill Bray |
| 29 | 2/14/2012 | PA. | Duneland #2 FA 2012 | Muncie | #2 FA 2013 |
| 30 | 2/15/2012 | Albany | Neftali Feliz | NEE | Jered Weaver |
| Nick Markakis | Torii Hunter | ||||
| Mitch Moreland | |||||
| Ryan Dempster | |||||
| #1 FA Glenville 2012 | |||||
| 31 | 2/15/2012 | East York | #2 Rookie | Crosstown | Brent Lillibridge |
| #1 FA 2012 | #1 FA 2012 | ||||
| 32 | 2/18/2012 | Vermont | #2, 5 Rookie | PA. | #1 FA 2012 |
| 33 | 2/24/2012 | Indiana | Billy Butler | Crosstown | TMI #1 rookie |
| IN #1 rookie | |||||
| 34 | 2/24/2012 | Crosstown | In #1 rookie | Pennsylvania | Pa #1 rookie |
| EY #2 rookie | |||||
| 35 | 2/24/2012 | Albany | #2 FA (2013) | Indiana | John Grabow |
| 36 | 2/24/2012 | Cleveland | Cle #1 rookie | Duneland | Tyler Clippard |
| 37 | 2/24/2012 | Duneland | Gaby Sanchez | Gulf Breeze | GB #1 rookie |
| GB #4 rookie | |||||
| 38 | 2/24/2012 | East York | Jake Westbrook | North York | Martin Prado |
| 39 | 2/25/2012 | Longstown | Aaron Harang | Keystone | Jonathan Niese |
| #1 rookie | #1 rookie | ||||
| #4 rookie | #4 rookie | ||||
| 40 | 2/25/2012 | N.England | Aubrey Huff | East York | #3 rookie |
| Jerry Blevins | |||||
| 41 | 2/25/2012 | Gulf Breeze | Chris Denorfia | Sparrow Lake | #4 rookie |
| 42 | 2/25/2012 | York | Dave Bush | Cleveland | #5 rookie |
| Brian Tallet | |||||
| Wes Helms | |||||
| 43 | 2/25/2012 | N.England | Fernando Rodney | York | Matt Albers |
| Jerry Blevins | |||||
| 44 | 2/25/2012 | Muncie | Cody Ross | Albany | #1 FA (13) |
| 45 | 2/25/2012 | Penn | Max Venable | Muncie | Alb #1 (13) |
| 46 | 2/25/2012 | Sp.Lake | Carlos Marmol | New England | Jeff Samardzija |
| Skip Schumaker | Danny Descalso | ||||
| 47 | 2/272012 | Glenville | #2 FA 2013 | Keystone | Brad Bergesen |
| 48 | 2/27/2012 | Canaan | Omar Vizquel | NEE | Miguel Tejada |
| Jason Michaels | |||||
| 49 | 2/28/2012 | Keystone | Livan Hernandez | Crosstown | Wade Leblanc |
| 50 | 2/28/2012 | Keystone | Matt Reynolds | TMI | Blake Hawksworth |
| 51 | 2/29/2012 | TMI | #3 FA 2013 | Canaan | Marcos Mateo |
| 52 | 3/2/2012 | York | Aaron Rowand | TMI | Scott Hairston |
| 53 | 3/2/2012 | Crosstown | Matt Tolbert | Longstown | Eli Whiteside |
| 54 | 3/4/2012 | Gulf Breeze | Johnny Giovetella | NEE | Matt Holliday |
| Peter Bourjos | Mike Gonzalez | ||||
| Rafael Soriano | |||||
| 55 | 3/8/2012 | Vermont | #4 FA 2013 | Green Mt. | Ramon Ortiz |
| 56 | 3/9/2012 | Keystone | Pat Burrell | Glenville | #2 FA 2014 |
| 57 | 3/10/2012 | Vermont | #3 FA 2013 | Canaan | Ross Gload |
| Sean Burroughs | |||||
| Jason Michaels | |||||
| Brian Bruney | |||||
| 58 | 3/10/2012 | Vermont | #2 FA 2014 | PA. | Adam Russell |
| 59 | 3/13/2012 | PA. | Jeff Mathis | York | Blake DeWitt |
| 60 | 3/13/2012 | PA. | Enero Del Rosario | Muncie | Rob Johnson |
| 61 | 3/17/2012 | Muncie | Collin Balester | Crosstown | #2 FA 2013 |
| 62 | 3/18/2012 | Magic City | #2 FA 2014 | NEE | Carlos Guillen |
| Mike Cameron | |||||
| Doug Slaten | |||||
| Chris Ray | |||||
| 63 | 3/18/2012 | Crosstown | Koyie Hill | Glenville | Mike Kohn |
| 64 | 3/19/2012 | Grn. Mt. | Everth Cabrera nc | Canaan | #3 FA 2013 |
| 65 | 3/20/2012 | Gulf Breeze | J.D. Drew | Sparrow LK. | #2 FA 2014 |
| 66 | 3/20/2012 | Gulf Breeze | Jorge Posada | Cleveland | #1 FA 2014 |
| 67 | 3/20/2012 | Grn. Mt. | Wil Nieves | Longstown | Kevin Fransden nc |
| 68 | 3/20/2012 | Cleveland | #1 FA 2013 | York | Jeff Fulchino |
| JC Romero | |||||
| Scott Hairston | |||||
| 69 | 3/20/2012 | Magic City | #3 FA 2014 | York | Gerald Laird |
| 70 | 3/20/2012 | Longstown | #2 FA 2013 | NEE | Omar Vizquel |