| A | Amended filing |
| D | Derivative transaction in filing (usually option exercise) |
| E | Error detected in filing |
| M | Multiple transactions in filing; earliest reported transaction date and weighted average transaction price |
| S - Sale | Sale of securities on an exchange or to another person |
| S - Sale+OE | Sale of securities on an exchange or to another person (after option exercise) |
| F - Tax | Payment of exercise price or tax liability using portion of securities received from the company |
| P - Purchase | Purchase of securities on an exchange or from another person |