Where can I find recent information about which major shareholders changed their positions in a given stock?
For the united States forms must be submitted electronically with the Securities and Exchange Commission , they also must be posted to company websites.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Where can I find recent information about which major shareholders changed their positions in a given stock?

### Response:
For the united States forms must be submitted electronically with the Securities and Exchange Commission , they also must be posted to company websites.