X0206 3 2013-11-16 0 0000007431 ARMSTRONG WORLD INDUSTRIES INC AWI 0001592539 Schulz David S. C/O 2500 COLUMBIA AVE LANCASTER PA 17603 0 1 0 0 SVP and CFO Stock Options 40.71 2021-06-01 Common Stock 4472 D Stock Options 43.21 2022-02-28 Common Stock 4287 D Stock Options 51.76 2023-02-20 Common Stock 3602 D The options are non-qualified, have a ten-year term that began on June 1, 2011 and were previously granted under the 2011 Long-Term Incentive Plan. 2,981 of such options are vested and the remaining 1,491 options will vest on June 1, 2014 (contingent upon the Reporting Person's employment with the Issuer on the scheduled vesting date, except as provided for under the Issuer's 2011 Long-term Incentive Plan). Each stock option entitles the Reporting person to purchase one share of Issuer's common stock at an exercise price equal to $40.71. The options are non-qualified, have a ten-year term that began on February 28, 2012 and were previously granted under the 2011 Long-Term Incentive Plan. 1,429 of such options are vested and the remaining options will vest as follows: 1,429 options on February 28, 2014 and 1,429 options on February 28, 2015 (contingent upon the Reporting Person's employment with the Issuer on the scheduled vesting date, except as provided for under the Issuer's 2011 Long-term Incentive Plan). Each stock option entitles the Reporting person to purchase one share of Issuer's common stock at an exercise price equal to $43.21. The options are non-qualified, have a ten-year term that began on February 20, 2013 and were previously granted under the 2011 Long-Term Incentive Plan. The options will vest in three installments as follows: 1,200 options on February 20, 2014; 1,201 options on February 20, 2015; and 1,201 options on February 20, 2016 (contingent upon the Reporting Person's employment with the Issuer on the scheduled vesting date, except as provided for under the Issuer's 2011 Long-term Incentive Plan). Each stock option entitles the Reporting person to purchase one share of Issuer's common stock at an exercise price equal to $51.76. /s/Christopher S. Parisi, Attorney-in-fact 2013-11-25