X0306 4 2016-11-28 0 0001574815 BMC STOCK HOLDINGS, INC. BMCH 0001134049 VERTUCA CARL R JR C/O BMC STOCK HOLDINGS, INC. 980 HAMMOND DRIVE NE, SUITE 500 ATLANTA GA 30328 1 0 0 0 Common Stock 2016-11-28 4 S 0 1970 19.00 D 0 I See Footnotes Common Stock 14000 I See Footnotes Common Stock 134549 D The Reporting Person is the President and Manager of The Vertuca Group, LLC ("TVG") and has sole voting and dispositive power over such reported shares of common stock of the Issuer ("Common Stock"). TVG was the direct holder of such shares of Common Stock. MJR Ventures, LLC ("MJR") is the beneficial owner of such shares of Common Stock. The Reporting Person is a managing member of MJR and may therefore be deemed to beneficially own the securities of the Issuer held by MJR. The Reporting Person expressly disclaims beneficial ownership of such securities, except to the extent of the Reporting Person's pecuniary interest therein. The filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Person is the beneficial owner of such securities beneficially owned by MJR. The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 Trading Plan adopted by the Reporting Person. By: /s/ Paul M. Street by power of attorney for Carl R. Vertuca, Jr. 2016-11-30