BMC Stock Holdings
BMCH

From June 30, 2020 to September 30, 2020 Exercise of stock options Shares vested for long-term incentive plan Repurchases of common stock related to equity award activity

from March 31, 2020 to June 30, 2020 Exercise of stock options Shares vested for long-term incentive plan Repurchases of common stock related to equity award activity

From December 31, 2019 to March 31, 2020 Exercise of stock options Shares vested for long-term incentive plan Repurchases of common stock under share repurchase program Repurchases of common stock related to equity award activity

From December 31, 2018 to December 31, 2019 Exercise of stock options Shares vested for long-term incentive plan Repurchases of common stock under share repurchase program Repurchases of common stock related to equity award activity

from June 30, 2019 to September 30, 2019 Exercise of stock options Shares vested for long-term incentive plan

from March 31, 2019 to June 30,2019 Exercise of stock options Shares vested for long-term incentive plan

From December 31, 2018 to March 31, 2019 Exercise of stock options Shares vested for long-term incentive plan Repurchases of common stock under share repurchase program Repurchases of common stock related to equity award activity

From December 31, 2017 to December 31, 2018 Exercise of stock options Shares vested for long-term incentive plans Repurchases of common stock under share repurchase program Repurchases of common stock related to equity award activity Share withholdings made in satisfaction of exercise price

from December 31, 2016 to December 31, 2017 Exercise of stock options Shares vested for long-term incentive plans Shares repurchased

from December 31, 2015 to December 31, 2016 Issuance of common stock, net of offering costs Exercise of stock options Shares vested for long-term incentive plans Shares repurchased Share withholdings made in satisfaction of exercise price

from December 31, 2015 to March 31, 2016 Effect of reverse merger Cancellation of Legacy BMC treasury stock in connection with the Merger Shares vested for long-term incentive plans Shares repurchased

from December 31, 2014 to December 31, 2015 Effect of reverse merger Cancellation of Legacy BMC treasury stock in connection with the Merger Shares vested for long-term incentive plans Shares repurchased

from December 31, 2013 to September 30, 2014 Issuance of nonvested stock awards, net of forfeitures Exercise of stock options Conversion of restricted stock units

from December 31, 2012 to December 31, 2013 Conversion of Class A Common stock to common stock Conversion of Class B Common stock to common stock Issuance of common stock, net of offering costs Reclassification and conversion of preferred stock to common stock in connection with the IPO Issuance of nonvested stock awards, net of forfeitures On July 29, 2013, the Company filed an amendment to its Certificate of Incorporation effecting a 25.972-for-1 stock split of the Company’s common stock.

from December 31, 2012 to September 30, 2013 Conversion of Class A common stock to common stock Conversion of Class B common stock to common stock Issuance of common stock, net of offering costs Reclassification and conversion of preferred stock to common stock in connection with the IPO Issuance of nonvested stock awards, net of forfeitures On July 29, 2013, the Company filed an amendment to its Certificate of Incorporation effecting a 25.972-for-1 stock split of the Company’s common stock.

On August 14, 2013, the Company completed its IPO.Upon the closing of the IPO, all outstanding shares of the Company’s Class A Voting Common stock and Class B Non-Voting common stock were reclassified and converted into an equal number of shares of a single class of common stock, all outstanding options to purchase Class B Non-Voting common stock held by certain members of management were reclassified and converted into options to purchase an equal number of shares of common stock and all outstanding Redeemable Class A Junior Preferred stock, Redeemable Class B Senior Preferred stock and Convertible Class C Preferred stock were reclassified and converted into an aggregate of 7,191,891 shares of the Company’s common stock. On July 29, 2013, the Company filed an amendment to its Certificate of Incorporation effecting a 25.972-for-1 stock split of the Company’s common stock.

gives effect to the conversion of Saturn Acquisition Holdings, LLC into Stock Building Supply Holdings, Inc. on May 2, 2013 and the 25.972-for-1 split of our Class A voting common stock and Class B non-voting common stock effected on July 29, 2013;gives effect to the reclassification of all outstanding shares of our Class A voting common stock and Class B non-voting common stock into an aggregate of 14,460,717 shares of a single class of common stock immediately prior to the completion of this offering;gives effect to the reclassification immediately prior to completion of this offering of all outstanding: (i) Class A junior preferred stock into an aggregate of 365 shares of common stock; (ii) Class B senior preferred stock into an aggregate of 2,736,637 shares of common stock; and (iii) Class C convertible preferred stock into an aggregate of 4,454,889 shares of common stock.

On July 29, 2013, the Company filed an amendment to its Certificate of Incorporation effecting a 25.972-for-1 stock split of the Company’s common stock.

from December 31, 2012 to June 30, 2013 Conversion of Saturn Acquisition Holdings, LLC preferred stock to Stock Building Supply Holdings, Inc. preferred stock