| Date | Player | Position | Transaction |
|---|---|---|---|
| May 23 | Chris Gronkowski | FB | Traded from Indianapolis to Denver (for CB Cassius Vaughn) |
| May 23 | Cassius Vaughn | LCB | Traded from Denver to Indianapolis (for FB Chris Gronkowski) |
| May 22 | Danny Trevathan | RLB | Signed/draft choice by Denver (Four-year contract (through 2015)) |
| May 21 | Derek Wolfe | RDT | Signed/draft choice by Denver (Four-year contract (through 2015)) |
| May 19 | Malik Jackson | LDT | Signed/draft choice by Denver (Four-year contract (through 2015)) |
| May 18 | Omar Bolden | LCB | Signed/draft choice by Denver (Four-year contract (through 2015)) |
| May 15 | Mario Haggan | LB | Signed/unrest FA by Denver |
| May 11 | Jeremy Jarmon | LDE | Cut by Denver |
| May 10 | Drayton Florence | RCB | Signed (Two-year contract (through 2013)) |
| May 7 | Ryan McBean | DE | Signed by Denver (One-year contract (through 2012)) |