Form 1 shall be filed with the Department by every person who is directly or indirectly the beneficial owner of more than 10% of any class of any equity security of a domestic stock insurance company, or who is a director or an officer of such a company.
31 Pa. Code § 21.72
This section cited in 31 Pa. Code § 21.53 (relating to filing date); and 31 Pa. Code §21.57 (relating to information as to beneficial ownership).