An SEC subpoena is a formal demand for documents or testimony in a securities investigation. It is not a charge, and it is not a verdict - it is the government telling you that your records, or your account of events, now matter to an open file. The distinction between a witness, a subject, and a target determines everything about how you respond.
The day it arrives. Strategy starts the day you call - and the earliest decisions in a securities matter are the ones that cannot be unmade. We have defended SEC and DOJ matters from first subpoena through trial, nationwide.