X0306 4 2016-02-11 0001338749 POTLATCH CORP PCH 0001503769 Richards Jerald W C/O POTLATCH CORPORATION 601 W. FIRST AVENUE, SUITE 1600 SPOKANE WA 99201 1 Vice President & CFO Common Stock 2016-02-11 4 A 0 3209.0000 0.0000 A 14729.0000 D Common Stock 3877.2361 I 401(k) Represents award of restricted stock units (RSU's) that may be settled only for shares of common stock on a one-for-one basis. The RSU's will vest on December 31, 2018, subject to continued employment through such date. During the vesting period, an amount equal to the dividends that would have been paid on the RSU's had they been in the form of common stock will be converted into additional RSU's. The additional RSU's will also vest on December 31, 2018. /s/ Lorrie D. Scott, Attorney-in-Fact 2016-02-16