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Settlement of the units for common shares and delivery of the vested shares to the Reporting Person took place on January 17, 2017."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":1552},"source":{"system":"sec-edgar","filing":"0001127602-17-002081","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/7431/000112760217002081/form4.xml","form_type":"4"}},{"id":4487796,"issuer":{"id":3696,"kind":"organization","name":"ARMSTRONG WORLD INDUSTRIES INC","symbol":"AWI"},"owners":[{"id":114838,"kind":"person","name":"Romano Ellen R.","position":1,"cik":"0001582947","reported_name":"Romano Ellen R.","relationship":{"officer":true,"officer_title":"SVP, Human Resources"}}],"security":"Common Stock","published_at":"2017-01-19T22:05:16.000Z","date":"2017-01-17","kind":"tax_withholding","acquired":false,"shares":571,"price":41.8,"value":23867.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents the number of shares withheld by the Issuer to satisfy the Reporting Person's tax obligations upon the settlement of restricted stock units granted to the Reporting Person under the Issuer's 2011 Long-Term Incentive Plan."}],"balance_after":10252,"source":{"system":"sec-edgar","filing":"0001127602-17-002081","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/7431/000112760217002081/form4.xml","form_type":"4"}},{"id":4487795,"issuer":{"id":3696,"kind":"organization","name":"ARMSTRONG WORLD INDUSTRIES INC","symbol":"AWI"},"owners":[{"id":114838,"kind":"person","name":"Romano Ellen R.","position":1,"cik":"0001582947","reported_name":"Romano Ellen R.","relationship":{"officer":true,"officer_title":"SVP, Human Resources"}}],"security":"Common Stock","published_at":"2017-01-19T22:05:16.000Z","date":"2017-01-17","kind":"exercise","acquired":true,"shares":1552,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Reflects the conversion of previously granted restricted stock units into shares of Issuer's common stock in connection with the settlement of the restricted stock units.  Each restricted stock unit represents a contingent right to receive one share of Issuer's common stock."}],"balance_after":10823,"source":{"system":"sec-edgar","filing":"0001127602-17-002081","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/7431/000112760217002081/form4.xml","form_type":"4"}}]}