0000950123-09-029227 8-K 2 20090804 2.02 9.01 20090804 20090804 IPG PHOTONICS CORP 0001111928 3674 043444218 DE 8-K 34 001-33155 09981686 50 OLD WEBSTER ROAD OXFORD MA 01540 5083731100 50 OLD WEBSTER ROAD OXFORD MA 01540 8-K 1 b76611e8vk.htm IPG PHOTONICS CORP. EX-99.1 2 b76611exv99w1.htm EX-99.1 PRESS RELEASE ISSUED BY IPG PHOTONICS CORPORATION ON AUGUST 4, 2009.