When is notice required to be given to the Insurance Commissioner about changes in stockholders, officers, or directors for a corporation?

The correct answer is that notice is required to be given to the Insurance Commissioner prior to any changes in stockholders, officers, or directors for a corporation. This requirement is rooted in the regulatory framework governing insurance companies, which mandates that significant changes in corporate structure and leadership must be communicated to the Insurance Commissioner in advance. This ensures that the regulator can assess the implications of such changes on the corporation's financial stability, governance, and compliance with regulatory standards.

By requiring notice before changes occur, the Insurance Commissioner is able to maintain oversight and protect the interests of policyholders and the broader insurance market. Such proactive notification allows regulatory bodies to conduct necessary assessments and, if needed, ensure that any new individuals stepping into significant roles meet the eligibility criteria, thus fostering accountability and transparency within the insurance industry.

In contrast, the other choices do not align with the regulatory requirement of prior notification. Providing notice within a set number of days after changes, or only when requested, would not allow for the necessary oversight prior to changes, and indicating that no notice is needed until after changes happen does not comply with the spirit of regulatory vigilance that protects consumers.