MUNICH (Reuters) - Private equity investor Permira lowered its stake in German software company TeamViewer by selling shares to institutional investors at 41 euros apiece, it said late on Wednesday, giving it proceeds of 1.03 billion euros ($1.1 billion).With the placement of the 25 million shares, Permira [PERM.UL] cuts its stake in TeamViewer to 39% from 51.5%.Its shares were down 5.9% in early trade on Thursday.TeamViewer this week reported a 75% jump in first-quarter billings as people..