insider trading
trading of a public company's securities by individuals based on material, nonpublic information about the company
en-US/ˌɪnˈsaɪdɚ ˈtɹeɪdiŋ/
en-GB/ɪnˈsaɪdə ˈtɹeɪdɪŋ/
trading of a public company's securities by individuals based on material, nonpublic information about the company