Khamenei is studying and teaching in the seminary of Qom; and is a member in Society of Seminary Teachers of Qom (Persian: جامعهٔ مدرسین حوزهٔ علمیهٔ قم).
Seyyed Khamenei does not have governmental/non-governmental or formal position; moreover, his father (Ali Khamenei) has prohibited his son(s) from accepting governmental, or similar positions. According to Mehr News Agency, Masoud has the most attention out of Ali's sons in collecting the memoirs of his father and likewise in running the former Supreme Leader's activities related to his publications and preservation.
Khamenei holds the title of Hojjat ol-Eslam, and is the husband of Sadiq-Kharazi's sister; likewise, he is the son-in-law of Mohsen Kharazi (Tehran's representative in the assembly of experts).
Khamenei's family are among the Iranian Sayyid families who are from Hosseini Sayyid, and their lineage is connected to the fourth Imam of Shia Islam, Ali ibn Husayn Zayn al-Abidin (Persian/Arabic: علی بن حسین، زین العابدین) (known as "Imam Sajjad"), according to "Khamenei family tree". Khamenei married the daughter of Mohsen Kharazi.
Wealth
Khamenei manages several of his family institutions. He reportedly holds over $400 million in banks in France and United Kingdom, with additional $100 million in Tehran, Iran. Khamenei also controls the sales of Renault vehicles in Iran.
↑"شغل-فرزندان-مقام-معظم-رهبري"[Occupations of the son(s) of Seyyed Ali Khamenei –among Seyyed Mostafa]. porseman.com (in Persian). Archived from the original on 16 November 2019. Retrieved 18 November 2019.
↑صراط نیوز (19 December 2015). "فرزندان رهبر انقلاب مشغول چه کاری هستند؟ +عکس"[What are the sons of Iran's supreme leader doing? -- Amongst Seyyed Masoud]. Seratnews.com (in Persian). Retrieved 26 June 2025.
↑"فرزند رهبر انقلاب به همراه پدر همسرش"[Seyyed Masoud Khamenei, beside his father-in-law (Seyyed Mohsen Kharazi) – Portrait]. aghigh.ir (in Persian). 31 March 2014. Retrieved 26 June 2025.
↑MarkazeAsnade Enqelab-Eslami --Arshiv (Document Center Archive), No. 1225
↑Golshane Abrar (a group of Qom seminary researchers); Vol. 2, P 973; (Institute Baqerol-Olum (related to Islamic Development Organization); Ma'refat Publications (1382 Sh), Second Edition