SEI Investments shares fall 1.35% after-hours following Nephila Capital partnership announcement.

SEI Investments Company declined 1.35% in after-hours trading. The company announced that it was selected by Nephila Capital Ltd. to support its back- and middle-office operations across North America and the UK. Nephila, a leading investment manager specializing in reinsurance risk, has managed institutional assets in the reinsurance industry for over 20 years and is one of the largest insurance-linked securities (ILS) managers globally with approximately $7 billion in assets under management.