Javiera Ragnartz was named CEO of SEB Investment Management, a spokesman said.
Ms. Ragnartz will replace Peter Branner in the summer. Mr. Branner was appointed chief investment officer of APG Asset Management, the manager of the €399 billion ($457 billion) Stichting Pensioenfonds ABP, Heerlen, Netherlands.
Hans Ek, head of environmental, social and governance investment management is serving as interim CEO.
Ms. Javiera, who was also named divisional head of SEB's investment management division, will report to the board of SEB Investment Management. In her role as divisional head she will report to Johan Torgeby, SEB's president and CEO.
"(Ms. Ragnartz) has solid industry and leadership experience, and has worked with both strategic and operational issues in large organizations," Mr. Torgeby said in a news release. "Her task is to strengthen SEB's fund management offering and continue to develop sustainable investment products."
Ms. Ragnartz was previously head of asset management at 619 billion Swedish kronor ($68 billion) life insurance company AMF. A spokesman could not be reached to comment about a replacement.
SEB had 1.7 trillion kroner in assets under management as of Dec. 31.