A beneficial owner, director, or officer, directly or indirectly, may not sell any equity security of a domestic stock insurance company if the person selling the security or the person’s principal does not own the security sold, or if owning the security, does not deliver it against such sale within twenty days thereafter, or does not within five days after the sale deposit it in the mails or other usual channels of transportation. A person does not violate this section if the person proves that notwithstanding the exercise of good faith the person was unable to make such delivery or deposit within such time, or that to do so would cause undue inconvenience or expense.