Where does the SEC get its money?

Can you explain to me where exactly does the Securities and Exchange Commission (SEC) derive its funding from? I'm curious about the financial mechanisms in place that support the agency's operations and its ability to enforce securities laws and regulations. Does the SEC receive funding directly from the federal government, or are there other sources of revenue? Furthermore, how does this funding affect the agency's independence and its decision-making processes? I'm interested in gaining a deeper understanding of the financial backbone that enables the SEC to carry out its mission.