| Transactions |
| Date | Team | Player | Type | OthTm | EffDate | When |
| 4/6/1977 | CAR | Garrett | Demoted to reserve roster |   |   | Before |
| 4/6/1977 | CAR | Hunter | Demoted to reserve roster |   |   | Before |
| 4/6/1977 | CAR | Ivie | Promoted to active roster |   |   | Before |
| 4/6/1977 | CAR | Martinez,Ti | Promoted to active roster |   |   | Before |
| 4/6/1977 | EKL | Carbo | Promoted to active roster |   |   | Before |
| 4/6/1977 | EKL | Matlack | Demoted to reserve roster |   |   | Before |
| 4/12/1977 | EKL | Matlack | Promoted to active roster |   |   | Before |
| 4/12/1977 | EKL | Owchinko | Demoted to reserve roster |   |   | Before |
| 4/13/1977 | CAR | Bailor | Demoted to reserve roster |   |   | Before |
| 4/13/1977 | CAR | Dawson | Demoted to reserve roster |   |   | Before |
| 4/13/1977 | CAR | Garrett | Promoted to active roster |   |   | Before |
| 4/13/1977 | CAR | Grich | Promoted to active roster |   |   | Before |
| 4/13/1977 | CAR | Hunter | Promoted to active roster |   |   | Before |
| 4/13/1977 | CAR | Lewallyn | Promoted to active roster |   |   | Before |
| 4/13/1977 | CAR | McGregor | Demoted to reserve roster |   |   | Before |
| 4/13/1977 | CAR | Newman | Promoted to active roster |   |   | Before |
| 4/13/1977 | CAR | Parrish | Demoted to reserve roster |   |   | Before |
| 4/13/1977 | CAR | Rettenmund | Promoted to active roster |   |   | Before |
| 4/13/1977 | CAR | Sorensen | Demoted to reserve roster |   |   | Before |
| 4/13/1977 | CAR | Thomas,De | Demoted to reserve roster |   |   | Before |
| 4/13/1977 | CAR | Thomas,De | Promoted to active roster |   |   | Before |
| 4/13/1977 | CAR | Wockenfuss | Demoted to reserve roster |   |   | Before |
| 4/13/1977 | EKL | Haas | Demoted to reserve roster |   |   | Before |
| 4/13/1977 | EKL | Honeycutt | Promoted to active roster |   |   | Before |
| 4/13/1977 | EKL | Owchinko | Demoted to reserve roster |   |   | Before |
| 4/13/1977 | EKL | Owchinko | Promoted to active roster |   |   | Before |
| 4/17/1977 | CAR | Bailor | Promoted to active roster |   |   | Before |
| 4/17/1977 | CAR | Dawson | Promoted to active roster |   |   | Before |
| 4/17/1977 | CAR | Garrett | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | CAR | Grich | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | CAR | Hunter | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | CAR | McGregor | Promoted to active roster |   |   | Before |
| 4/17/1977 | CAR | Parrish | Promoted to active roster |   |   | Before |
| 4/17/1977 | CAR | Rettenmund | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | CAR | Sorensen | Promoted to active roster |   |   | Before |
| 4/17/1977 | CAR | Underwood | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | EKL | Haas | Promoted to active roster |   |   | Before |
| 4/17/1977 | EKL | Honeycutt | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | EKL | Owchinko | Promoted to active roster |   |   | Before |
| 4/17/1977 | EKL | Renko | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | ELE | Denny | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | ELE | Downing | Promoted to active roster |   |   | Before |
| 4/17/1977 | LAA | Fryman | Promoted to active roster |   |   | Before |
| 4/17/1977 | LAA | Thomas,Da | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | WWM | Dierker | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | WWM | Lamp | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | WWM | Lamp | Promoted to active roster |   |   | Before |
| 4/17/1977 | WWM | Mejias | Promoted to active roster |   |   | Before |
| 4/17/1977 | WWM | Pentz | Demoted to reserve roster |   |   | Before |
| 4/17/1977 | WWM | Ruhle | Promoted to active roster |   |   | Before |
| 4/24/1977 | EKL | Owchinko | Demoted to reserve roster |   |   | Before |
| 4/24/1977 | EKL | Renko | Promoted to active roster |   |   | Before |
| 4/26/1977 | CAR | Baez | Demoted to reserve roster |   |   | Before |
| 4/26/1977 | CAR | Elliott | Promoted to active roster |   |   | Before |
| 4/26/1977 | CAR | Garrett | Promoted to active roster |   |   | Before |
| 4/26/1977 | CAR | Lewallyn | Demoted to reserve roster |   |   | Before |
| 4/26/1977 | CAR | Newman | Demoted to reserve roster |   |   | Before |
| 4/26/1977 | CAR | Sorensen | Demoted to reserve roster |   |   | Before |
| 4/26/1977 | CAR | Underwood | Promoted to active roster |   |   | Before |
| 4/26/1977 | CAR | Wockenfuss | Promoted to active roster |   |   | Before |
| 4/26/1977 | EKL | Haas | Demoted to reserve roster |   |   | Before |
| 4/26/1977 | EKL | Honeycutt | Promoted to active roster |   |   | Before |
| 4/26/1977 | ELE | Cort | Promoted to active roster |   |   | Before |
| 4/26/1977 | ELE | Downing | Demoted to reserve roster |   |   | Before |
| 4/26/1977 | ELE | Terrell | Demoted to reserve roster |   |   | Before |
| 4/26/1977 | ELE | Turner | Promoted to active roster |   |   | Before |
| 4/30/1977 | ELE | Coluccio | Promoted to active roster |   |   | Before |
| 4/30/1977 | ELE | Cort | Demoted to reserve roster |   |   | Before |
| 4/30/1977 | ELE | Downing | Promoted to active roster |   |   | Before |
| 4/30/1977 | ELE | Mota | Demoted to reserve roster |   |   | Before |
| 4/30/1977 | GLA | Staggs | Demoted to reserve roster |   |   | Before |
| 4/30/1977 | GLA | White,R | Promoted to active roster |   |   | Before |
| 4/30/1977 | LAA | Wilcox | Demoted to reserve roster |   |   | Before |
| 4/30/1977 | LAA | Wilcox | Promoted to active roster |   |   | Before |
| 5/1/1977 | CAR | Baez | Promoted to active roster |   |   | Before |
| 5/1/1977 | CAR | Bailor | Demoted to reserve roster |   |   | Before |
| 5/1/1977 | CAR | Elliott | Demoted to reserve roster |   |   | Before |
| 5/1/1977 | CAR | Elliott | Promoted to active roster |   |   | Before |
| 5/1/1977 | CAR | Garrett | Demoted to reserve roster |   |   | Before |
| 5/1/1977 | CAR | Grich | Promoted to active roster |   |   | Before |
| 5/1/1977 | CAR | Halicki | Demoted to reserve roster |   |   | Before |
| 5/1/1977 | CAR | Hernandez,W | Demoted to reserve roster |   |   | Before |
| 5/1/1977 | CAR | Hunter | Promoted to active roster |   |   | Before |
| 5/1/1977 | CAR | Sorensen | Promoted to active roster |   |   | Before |
| 5/1/1977 | EKL | Bell,B | Demoted to reserve roster |   |   | Before |
| 5/1/1977 | EKL | Knight | Promoted to active roster |   |   | Before |
| 5/1/1977 | WWM | Lonborg | Demoted to reserve roster |   |   | Before |
| 5/1/1977 | WWM | May,C | Promoted to active roster |   |   | Before |
| 5/1/1977 | WWM | Mejias | Demoted to reserve roster |   |   | Before |
| 5/1/1977 | WWM | Montanez | Demoted to reserve roster |   |   | Before |
| 5/1/1977 | WWM | Moore,B | Promoted to active roster |   |   | Before |
| 5/1/1977 | WWM | Sexton | Promoted to active roster |   |   | Before |
| 5/4/1977 | CAR | Bailor | Promoted to active roster |   |   | Before |
| 5/4/1977 | CAR | Elliott | Demoted to reserve roster |   |   | Before |
| 5/4/1977 | CAR | Forsch,K | Demoted to reserve roster |   |   | Before |
| 5/4/1977 | CAR | Garrett | Promoted to active roster |   |   | Before |
| 5/4/1977 | CAR | Grich | Demoted to reserve roster |   |   | Before |
| 5/4/1977 | CAR | Halicki | Promoted to active roster |   |   | Before |
| 5/4/1977 | CAR | Hernandez,W | Promoted to active roster |   |   | Before |
| 5/4/1977 | CAR | Hunter | Demoted to reserve roster |   |   | Before |
| 5/4/1977 | CAR | Lemongello | Demoted to reserve roster |   |   | Before |
| 5/4/1977 | CAR | Lewallyn | Promoted to active roster |   |   | Before |
| 5/4/1977 | EKL | Bell,B | Promoted to active roster |   |   | Before |
| 5/4/1977 | EKL | Haas | Promoted to active roster |   |   | Before |
| 5/4/1977 | EKL | Knight | Demoted to reserve roster |   |   | Before |
| 5/4/1977 | EKL | Matlack | Demoted to reserve roster |   |   | Before |
| 5/4/1977 | MOB | Burke,S | Traded away | SPK |   | After |
| 5/4/1977 | MOB | Capilla | Acquired via trade | SPK |   | After |
| 5/4/1977 | MOB | Holtzman | Traded away | SPK |   | After |
| 5/4/1977 | MOB | Torrealba | Acquired via trade | SPK |   | After |
| 5/4/1977 | WWM | Dierker | Promoted to active roster |   |   | Before |
| 5/4/1977 | WWM | Lamp | Demoted to reserve roster |   |   | Before |
| 5/4/1977 | WWM | Lamp | Promoted to active roster |   |   | Before |
| 5/4/1977 | WWM | Lonborg | Demoted to reserve roster |   |   | Before |
| 5/4/1977 | WWM | Lonborg | Promoted to active roster |   |   | Before |
| 5/4/1977 | WWM | May,C | Demoted to reserve roster |   |   | Before |
| 5/4/1977 | WWM | Mejias | Promoted to active roster |   |   | Before |
| 5/4/1977 | WWM | Montanez | Promoted to active roster |   |   | Before |
| 5/4/1977 | WWM | Moore,B | Demoted to reserve roster |   |   | Before |
| 5/4/1977 | WWM | Sexton | Demoted to reserve roster |   |   | Before |
| 5/6/1977 | ELE | Denny | Promoted to active roster |   |   | Before |
| 5/6/1977 | ELE | Downing | Demoted to reserve roster |   |   | Before |
| 5/10/1977 | GLA | Millan | Demoted to reserve roster |   |   | Before |
| 5/10/1977 | GLA | Zeber | Promoted to active roster |   |   | Before |
| 5/11/1977 | EKL | Honeycutt | Demoted to reserve roster |   |   | Before |
| 5/11/1977 | EKL | Matlack | Promoted to active roster |   |   | Before |
| 5/11/1977 | EKL | Monge | Demoted to reserve roster |   |   | Before |
| 5/11/1977 | EKL | Owchinko | Promoted to active roster |   |   | Before |
| 5/12/1977 | CAR | Forsch,K | Promoted to active roster |   |   | Before |
| 5/12/1977 | CAR | Garrett | Demoted to reserve roster |   |   | Before |
| 5/12/1977 | CAR | Grich | Promoted to active roster |   |   | Before |
| 5/12/1977 | CAR | Hunter | Promoted to active roster |   |   | Before |
| 5/12/1977 | CAR | Lemongello | Promoted to active roster |   |   | Before |
| 5/12/1977 | CAR | Lewallyn | Demoted to reserve roster |   |   | Before |
| 5/12/1977 | CAR | McGregor | Demoted to reserve roster |   |   | Before |
| 5/12/1977 | CAR | Newman | Promoted to active roster |   |   | Before |
| 5/12/1977 | CAR | Sorensen | Demoted to reserve roster |   |   | Before |
| 5/12/1977 | CAR | Wockenfuss | Demoted to reserve roster |   |   | Before |
| 5/12/1977 | EKL | Carbo | Demoted to reserve roster |   |   | Before |
| 5/12/1977 | EKL | Knight | Promoted to active roster |   |   | Before |
| 5/12/1977 | EKL | Mahler | Promoted to active roster |   |   | Before |
| 5/12/1977 | EKL | Matlack | Demoted to reserve roster |   |   | Before |
| 5/12/1977 | EKL | Monge | Promoted to active roster |   |   | Before |
| 5/12/1977 | EKL | Niekro,P | Demoted to reserve roster |   |   | Before |
| 5/12/1977 | MOB | Capilla | Demoted to reserve roster |   |   | Before |
| 5/12/1977 | MOB | Moskau | Demoted to reserve roster |   |   | Before |
| 5/12/1977 | MOB | Torrealba | Promoted to active roster |   |   | Before |
| 5/16/1977 | CAR | Grich | Demoted to reserve roster |   |   | Before |
| 5/16/1977 | CAR | Hunter | Demoted to reserve roster |   |   | Before |
| 5/16/1977 | CAR | Newman | Demoted to reserve roster |   |   | Before |
| 5/16/1977 | CAR | Rettenmund | Promoted to active roster |   |   | Before |
| 5/16/1977 | CAR | Sorensen | Promoted to active roster |   |   | Before |
| 5/16/1977 | CAR | Wockenfuss | Promoted to active roster |   |   | Before |
| 5/16/1977 | DAY | Clancy | Demoted to reserve roster |   |   | Before |
| 5/16/1977 | DAY | Ross | Promoted to active roster |   |   | Before |
| 5/16/1977 | ELE | Downing | Promoted to active roster |   |   | Before |
| 5/16/1977 | ELE | Jones,O | Demoted to reserve roster |   |   | Before |
| 5/18/1977 | EKL | Coleman,J | Demoted to reserve roster |   |   | Before |
| 5/18/1977 | EKL | Coleman,J | Promoted to active roster |   |   | Before |
| 5/18/1977 | EKL | Honeycutt | Promoted to active roster |   |   | Before |
| 5/18/1977 | EKL | Monge | Promoted to active roster |   |   | Before |
| 5/18/1977 | EKL | Owchinko | Demoted to reserve roster |   |   | Before |
| 5/18/1977 | EKL | Sosa | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | CAR | Figueroa | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | CAR | Garrett | Promoted to active roster |   |   | Before |
| 5/25/1977 | CAR | Hunter | Promoted to active roster |   |   | Before |
| 5/25/1977 | CAR | Ivie | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | CAR | Newman | Promoted to active roster |   |   | Before |
| 5/25/1977 | CAR | Wockenfuss | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | EKL | Garber | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | EKL | Honeycutt | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | EKL | Owchinko | Promoted to active roster |   |   | Before |
| 5/25/1977 | EKL | Sosa | Promoted to active roster |   |   | Before |
| 5/25/1977 | ELE | Coluccio | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | ELE | Denny | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | ELE | Jones,O | Promoted to active roster |   |   | Before |
| 5/25/1977 | ELE | Mota | Promoted to active roster |   |   | Before |
| 5/25/1977 | LAA | Adams,B | Released |   |   | Before |
| 5/25/1977 | LAA | Adams,B | Signed |   |   | Before |
| 5/25/1977 | LAA | Alomar | Released |   |   | Before |
| 5/25/1977 | LAA | Alomar | Signed |   |   | Before |
| 5/25/1977 | LAA | Alvarado | Released |   |   | Before |
| 5/25/1977 | LAA | Alvarado | Signed |   |   | Before |
| 5/25/1977 | LAA | Capra | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | LAA | Cash | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | LAA | Cash | Promoted to active roster |   |   | Before |
| 5/25/1977 | LAA | McGlothen | Promoted to active roster |   |   | Before |
| 5/25/1977 | MOB | Moskau | Promoted to active roster |   |   | Before |
| 5/25/1977 | MOB | Torrealba | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | WWM | Ellis,D | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | WWM | Ellis,D | Promoted to active roster |   |   | Before |
| 5/25/1977 | WWM | Ellis,D | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | WWM | Lamp | Promoted to active roster |   |   | Before |
| 5/25/1977 | WWM | May,C | Promoted to active roster |   |   | Before |
| 5/25/1977 | WWM | Mejias | Demoted to reserve roster |   |   | Before |
| 5/25/1977 | WWM | Moore,B | Promoted to active roster |   |   | Before |
| 5/25/1977 | WWM | Rooker | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | CAR | Figueroa | Promoted to active roster |   |   | Before |
| 5/30/1977 | CAR | Garrett | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | CAR | Grich | Promoted to active roster |   |   | Before |
| 5/30/1977 | CAR | Hunter | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | CAR | Ivie | Promoted to active roster |   |   | Before |
| 5/30/1977 | CAR | Newman | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | CAR | Rettenmund | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | CAR | Wockenfuss | Promoted to active roster |   |   | Before |
| 5/30/1977 | DAY | Alcala | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | DAY | Clancy | Promoted to active roster |   |   | Before |
| 5/30/1977 | DAY | Nolan,G | Promoted to active roster |   |   | Before |
| 5/30/1977 | DAY | Ross | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | EKL | Coleman,J | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | EKL | Garber | Promoted to active roster |   |   | Before |
| 5/30/1977 | ELE | Denny | Promoted to active roster |   |   | Before |
| 5/30/1977 | ELE | Jones,O | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | GLA | Harrelson | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | GLA | Zeber | Promoted to active roster |   |   | Before |
| 5/30/1977 | LAA | Alomar | Released |   |   | Before |
| 5/30/1977 | LAA | Alomar | Signed |   |   | Before |
| 5/30/1977 | MOB | Capilla | Promoted to active roster |   |   | Before |
| 5/30/1977 | MOB | Hanna | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | WWM | Ellis,D | Promoted to active roster |   |   | Before |
| 5/30/1977 | WWM | Lamp | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | WWM | May,C | Demoted to reserve roster |   |   | Before |
| 5/30/1977 | WWM | Rooker | Promoted to active roster |   |   | Before |
| 6/1/1977 | EKL | Coleman,J | Demoted to reserve roster |   |   | Before |
| 6/1/1977 | EKL | Coleman,J | Promoted to active roster |   |   | Before |
| 6/1/1977 | LAA | McKinney | Signed |   |   | Before |
| 6/1/1977 | LAA | Thomas,Da | Released |   |   | Before |
| 6/6/1977 | EKL | Coleman,J | Promoted to active roster |   |   | Before |
| 6/6/1977 | EKL | Knight | Demoted to reserve roster |   |   | Before |
| 6/6/1977 | EKL | Knight | Promoted to active roster |   |   | Before |
| 6/6/1977 | EKL | Monge | Demoted to reserve roster |   |   | Before |
| 6/6/1977 | EKL | Monge | Promoted to active roster |   |   | Before |
| 6/6/1977 | EKL | Sosa | Demoted to reserve roster |   |   | Before |
| 6/7/1977 | CAR | Figueroa | Demoted to reserve roster |   |   | Before |
| 6/7/1977 | CAR | Garrett | Promoted to active roster |   |   | Before |
| 6/7/1977 | CAR | Grich | Demoted to reserve roster |   |   | Before |
| 6/7/1977 | CAR | Hunter | Promoted to active roster |   |   | Before |
| 6/7/1977 | CAR | Ivie | Demoted to reserve roster |   |   | Before |
| 6/7/1977 | CAR | McGregor | Promoted to active roster |   |   | Before |
| 6/7/1977 | CAR | Newman | Promoted to active roster |   |   | Before |
| 6/7/1977 | CAR | Wockenfuss | Demoted to reserve roster |   |   | Before |
| 6/7/1977 | DAY | Gaston | Promoted to active roster |   |   | Before |
| 6/7/1977 | DAY | Rudi | Demoted to reserve roster |   |   | Before |
| 6/7/1977 | EKL | Cruz,J | Demoted to reserve roster |   |   | Before |
| 6/7/1977 | EKL | Knight | Promoted to active roster |   |   | Before |
| 6/7/1977 | ELE | Cort | Promoted to active roster |   |   | Before |
| 6/7/1977 | ELE | Gullett | Demoted to reserve roster |   |   | Before |
| 6/7/1977 | LAA | Apodaca | Demoted to reserve roster |   |   | Before |
| 6/7/1977 | LAA | McKinney | Promoted to active roster |   |   | Before |
| 6/7/1977 | MOB | Capilla | Demoted to reserve roster |   |   | Before |
| 6/7/1977 | MOB | Hanna | Promoted to active roster |   |   | Before |
| 6/7/1977 | MOB | Moskau | Demoted to reserve roster |   |   | Before |
| 6/7/1977 | MOB | Torrealba | Promoted to active roster |   |   | Before |
| 6/12/1977 | CAR | Figueroa | Promoted to active roster |   |   | Before |
| 6/12/1977 | CAR | Garrett | Demoted to reserve roster |   |   | Before |
| 6/12/1977 | CAR | Grich | Promoted to active roster |   |   | Before |
| 6/12/1977 | CAR | Hunter | Demoted to reserve roster |   |   | Before |
| 6/12/1977 | CAR | Hunter | Promoted to active roster |   |   | Before |
| 6/12/1977 | CAR | Ivie | Promoted to active roster |   |   | Before |
| 6/12/1977 | CAR | Lewallyn | Demoted to reserve roster |   |   | Before |
| 6/12/1977 | CAR | Lewallyn | Promoted to active roster |   |   | Before |
| 6/12/1977 | CAR | Littell | Demoted to reserve roster |   |   | Before |
| 6/12/1977 | CAR | Newman | Demoted to reserve roster |   |   | Before |
| 6/12/1977 | CAR | Smalley | Demoted to reserve roster |   |   | Before |
| 6/12/1977 | CAR | Wockenfuss | Promoted to active roster |   |   | Before |
| 6/12/1977 | DAY | Brock | Promoted to active roster |   |   | Before |
| 6/12/1977 | DAY | Gaston | Demoted to reserve roster |   |   | Before |
| 6/12/1977 | ELE | Denny | Demoted to reserve roster |   |   | Before |
| 6/12/1977 | ELE | Gullett | Promoted to active roster |   |   | Before |
| 6/12/1977 | GLA | Fidrych | Demoted to reserve roster |   |   | Before |
| 6/12/1977 | GLA | Frost | Demoted to reserve roster |   |   | Before |
| 6/12/1977 | GLA | Krukow | Promoted to active roster |   |   | Before |
| 6/12/1977 | GLA | Tiant | Promoted to active roster |   |   | Before |
| 6/12/1977 | MOB | Capilla | Promoted to active roster |   |   | Before |
| 6/12/1977 | MOB | Pruitt | Demoted to reserve roster |   |   | Before |
| 6/13/1977 | EKL | Cruz,J | Promoted to active roster |   |   | Before |
| 6/13/1977 | EKL | Haas | Demoted to reserve roster |   |   | Before |
| 6/13/1977 | EKL | Honeycutt | Promoted to active roster |   |   | Before |
| 6/13/1977 | EKL | Mahler | Promoted to active roster |   |   | Before |
| 6/13/1977 | EKL | Owchinko | Demoted to reserve roster |   |   | Before |
| 6/13/1977 | EKL | Wills | Demoted to reserve roster |   |   | Before |
| 6/13/1977 | GLA | Healy | Signed |   |   | Before |
| 6/13/1977 | GLA | Zeber | Released |   |   | Before |
| 6/13/1977 | WWM | Giusti | Demoted to reserve roster |   |   | Before |
| 6/13/1977 | WWM | Lonborg | Promoted to active roster |   |   | Before |
| 6/15/1977 | GLA | Taylor | Demoted to reserve roster |   |   | Before |
| 6/17/1977 | GLA | Healy | Promoted to active roster |   |   | Before |
| 6/17/1977 | GLA | Taylor | Released |   |   | Before |
| 6/17/1977 | GLA | Thomas,Da | Signed |   |   | Before |
| 6/17/1977 | GLA | Wathan | Demoted to reserve roster |   |   | Before |
| 6/17/1977 | GLA | Wathan | Promoted to active roster |   |   | Before |
| 6/19/1977 | CAR | Garrett | Promoted to active roster |   |   | Before |
| 6/19/1977 | CAR | Grich | Demoted to reserve roster |   |   | Before |
| 6/19/1977 | CAR | Ivie | Demoted to reserve roster |   |   | Before |
| 6/19/1977 | CAR | Littell | Promoted to active roster |   |   | Before |
| 6/19/1977 | CAR | Newman | Promoted to active roster |   |   | Before |
| 6/19/1977 | CAR | Rettenmund | Promoted to active roster |   |   | Before |
| 6/19/1977 | CAR | Smalley | Promoted to active roster |   |   | Before |
| 6/19/1977 | CAR | Sorensen | Demoted to reserve roster |   |   | Before |
| 6/19/1977 | CAR | Underwood | Demoted to reserve roster |   |   | Before |
| 6/19/1977 | CAR | Wockenfuss | Demoted to reserve roster |   |   | Before |
| 6/19/1977 | EKL | Haas | Promoted to active roster |   |   | Before |
| 6/19/1977 | EKL | Honeycutt | Demoted to reserve roster |   |   | Before |
| 6/19/1977 | EKL | Knight | Demoted to reserve roster |   |   | Before |
| 6/19/1977 | EKL | Mahler | Demoted to reserve roster |   |   | Before |
| 6/19/1977 | EKL | Owchinko | Promoted to active roster |   |   | Before |
| 6/19/1977 | EKL | Sosa | Promoted to active roster |   |   | Before |
| 6/19/1977 | EKL | Wills | Promoted to active roster |   |   | Before |
| 6/24/1977 | CAR | Garrett | Demoted to reserve roster |   |   | Before |
| 6/24/1977 | CAR | Halicki | Demoted to reserve roster |   |   | Before |
| 6/24/1977 | CAR | Halicki | Promoted to active roster |   |   | Before |
| 6/24/1977 | CAR | Hunter | Demoted to reserve roster |   |   | Before |
| 6/24/1977 | CAR | Ivie | Promoted to active roster |   |   | Before |
| 6/24/1977 | CAR | Newman | Demoted to reserve roster |   |   | Before |
| 6/24/1977 | CAR | Rettenmund | Demoted to reserve roster |   |   | Before |
| 6/24/1977 | CAR | Sorensen | Promoted to active roster |   |   | Before |
| 6/24/1977 | CAR | Underwood | Promoted to active roster |   |   | Before |
| 6/24/1977 | CAR | Wockenfuss | Promoted to active roster |   |   | Before |
| 6/24/1977 | EKL | Honeycutt | Demoted to reserve roster |   |   | Before |
| 6/24/1977 | EKL | Knight | Demoted to reserve roster |   |   | Before |
| 6/24/1977 | EKL | Mahler | Demoted to reserve roster |   |   | Before |
| 6/24/1977 | EKL | Owchinko | Promoted to active roster |   |   | Before |
| 6/24/1977 | EKL | Sosa | Promoted to active roster |   |   | Before |
| 6/24/1977 | EKL | Wills | Promoted to active roster |   |   | Before |
| 9/30/1977 | MOB | Brown,O | Demoted to reserve roster |   |   | Before |
| 9/30/1977 | MOB | Freisleben | Demoted to reserve roster |   |   | Before |
| 9/30/1977 | MOB | Heise | Demoted to reserve roster |   |   | Before |
| 9/30/1977 | MOB | Heise | Promoted to active roster |   |   | Before |
| 9/30/1977 | MOB | Morales,Jo | Demoted to reserve roster |   |   | Before |
| 9/30/1977 | MOB | Randall | Demoted to reserve roster |   |   | Before |
| 8/16/2025 | LAA | Perry | Acquired via trade | SEA |   | After |
| 8/17/2025 | EKL | Garr | Traded away | GLA |   | After |
| 8/17/2025 | EKL | Johnson,To | Traded away | GLA |   | After |
| 8/17/2025 | EKL | Knapp | Acquired via trade | ELE |   | After |
| 8/17/2025 | EKL | Rodriguez,A | Acquired via trade | GLA |   | After |
| 8/17/2025 | EKL | Staub | Acquired via trade | GLA |   | After |
| 8/17/2025 | ELE | Knapp | Traded away | EKL |   | After |
| 8/17/2025 | ELE | Tyson | Acquired via trade | CRU |   | After |
| 8/17/2025 | GLA | Bando | Acquired via trade | SEA |   | After |
| 8/17/2025 | GLA | Fidrych | Acquired via trade | SEA |   | After |
| 8/17/2025 | GLA | Garr | Acquired via trade | EKL |   | After |
| 8/17/2025 | GLA | Johnson,To | Acquired via trade | EKL |   | After |
| 8/17/2025 | GLA | Mankowski | Traded away | SEA |   | After |
| 8/17/2025 | GLA | Rodriguez,A | Traded away | EKL |   | After |
| 8/17/2025 | GLA | Russell | Acquired via trade | SEA |   | After |
| 8/17/2025 | GLA | Staub | Traded away | EKL |   | After |
| 8/17/2025 | GLA | Todd,J | Traded away | SEA |   | After |
| 8/17/2025 | GLA | Valentine,B | Traded away | SEA |   | After |
| 8/17/2025 | GLA | White,R | Acquired via trade | SEA |   | After |
| 8/20/2025 | CAR | Whitfield | Traded away | CRU |   | After |
| 9/12/2025 | EKL | Matlack | Acquired via trade | ROY |   | After |
| 9/14/2025 | COL | Braun | Traded away | SEA |   | After |
| 9/20/2025 | EKL | Hampton | Acquired via trade | WWM |   | After |
| 9/20/2025 | EKL | Rooker | Traded away | WWM |   | After |
| 9/20/2025 | WWM | Hampton | Traded away | EKL |   | After |
| 9/20/2025 | WWM | Rooker | Acquired via trade | EKL |   | After |
| 9/28/2025 | DAY | Augustine | Acquired via trade | SPK |   | After |
| 9/28/2025 | DAY | Colborn | Traded away | SPK |   | After |