Is there any obligation upon the questioner for selling SABIC shares immediately after purchasing them in the year 1432 A.H. to avoid usury, based on the bank employee's advice that holding them would involve usury?

If a person sold his shares in "SABIC" company before receiving profits from the company's investments, then the price is permissible. However, it is not permissible to return to buying shares in this company if it deals with usury, whether through borrowing or investing, because the basic principle is the prohibition of contributing to companies that deal with usury, as stated in the resolution of the Islamic Fiqh Council of the Muslim World League. If he bought unaware, he must withdraw immediately upon learning of it.