Banco Santander S.A. (b) Owner or controller of interests and short positions disclosed, if different from 1(a): The naming of nominee or vehicle companies is insufficient. For a trust, the trustee(s), settlor and beneficiaries must be named. N/A Use a separate form for each offeror/offeree RSA Insurance Group Plc (d) If an exempt fund manager connected with an offeror/offeree, state this and specify identity of offeror/offeree: N/A For an opening position disclosure, state the latest practicable date prior to the disclosure 20/05/2021 (f) In addition to the company in 1(c) above, is the discloser making disclosures in respect of any other party to the offer?