Lincoln National Corporation (LNC) recently announced a long-term strategic partnership with Bain Capital, under which the latter will invest $825 million to acquire a 9.9$44 each, representing a 25% premium over its recent 30-day average. The insurer will sell 18.8 million of its shares. LNC shares jumped 14% yesterday.Alongside the equity investment, the two firms have entered into a 10-year, non-exclusive investment management agree ...