0000807249-22-000089 SC 13D/A 1 20220712 20220712 Armstrong Flooring, Inc. 0001655075 3089 474303305 PA 1231 SC 13D/A 34 005-89450 221079201 1770 HEMPSTEAD ROAD P.O. BOX 10068 LANCASTER PA 17605 717-672-9611 1770 HEMPSTEAD ROAD P.O. BOX 10068 LANCASTER PA 17605 GAMCO INVESTORS, INC. ET AL 0000807249 0000 133056041 DE 1031 SC 13D/A ONE CORPORATE CENTER RYE NY 10580-1434 9149215000 ONE CORPORATE CENTER RYE NY 10580 GABELLI ASSET MANAGEMENT INC ET AL 20020828 GABELLI FUNDS INC ET AL 19940714 SC 13D/A 1 afi_15.htm