X0306 4 2013-08-01 0000880177 PEREGRINE SEMICONDUCTOR CORP PSMI 0001215371 MORGENTHALER PARTNERS VI 2710 SAND HILL ROAD SUITE 1000 MENLO PARK CA 94025 0 0 1 0 0001384598 Morgenthaler Management Partners VI LLC 50 PUBLIC SQUARE SUITE 2700 CLEVELAND OH 44113 0 0 1 0 0001555036 Pavey Robert C/O PEREGRINE SEMICONDUCTOR CORPORATION 9380 CARROLL PARK DRIVE SAN DIEGO CA 92121 1 0 0 0 Common Stock 2013-08-01 4 S 0 10000 11.21 D 3581013 D Common Stock 2013-08-05 4 S 0 15000 11.12 D 3566013 D Common Stock 2013-08-01 4 S 0 10000 11.21 D 3581013 I Robert D. Pavey through Morgenthaler Partners VI, L.P. Common Stock 2013-08-05 4 S 0 15000 11.12 D 3566013 I Robert D. Pavey through Morgenthaler Partners VI, L.P. The sales reported in this Form were effected pursuant to a Rule 10b-5-1 trading plan adopted by the reporting person on March 13, 2013. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.20 to $11.32, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.10 to $11.15, inclusive. Morgenthaler Management Partners VI, L.L.C., as the general partner of Morgenthaler Partners VI, L.P., beneficially owns the reported securities indirectly, but disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest therein. Morgenthaler Management Partners VI, L.L.C., is the general partner of Morgenthaler Partners VI, L.P. Robert D. Pavey, a member of Morgenthaler Management Partners VI, L.L.C., disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. These shares are owned indirectly by Robert D. Pavey, a director of the issuer. /s/ Jay Biskupski as Attorney-in-fact for Morgenthaler Management Partners VI, L.L.C. 2013-08-05 /s/ Jay Biskupski as Attorney-in-fact for Robert D. Pavey 2013-08-05