The Tenth Circuit has affirmed the district court’s dismissal of a plaintiff shareholder’s claim that withholding shares to satisfy taxes on a restricted stock unit (RSU) violated Exchange Act Section 16(b) (see Olagues v. Muncrief, No. 18-5018 (10th Cir. 2019)).  As we outlined last year in a blog on the lower court’s decision, the plaintiff’s claim was based on the non-exempt acquisition of shares by two executives within six months of the date that shares…