Leucadia National Corporation, a holding company, will buy New York investment bank Jefferies Group Inc. for $2.8 billion in stock, the firms announced on Nov. 12.

Leucadia already owns a 28.6 percent stake in Jefferies. The target company’s shareholders will receive .81 of a Leucadia share for each Jefferies share. Following the transaction, former Jefferies shareholders will have a 35.3 percent stake in Leucadia.