U.S. investment bank
Lehman was testing the waters last week by sending letters to several private equity firms like Apollo Management, the Blackstone Group, the Carlyle Group, J.C. Flowers, Kohlberg and Kravis & Roberts.
The banks investment management division includes Neuberger Berman, which Lehman acquired for $2.6 billion in 2003. Neuberger Bermans value is estimated to be valued as much as $13 billion.