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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001418812-19-000013
Filing Date
2019-03-13
Accepted
2019-03-13 17:11:11
Documents
1
Period of Report
2019-03-11

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT primary_doc.html 4  
1 PRIMARY DOCUMENT primary_doc.xml 4 12336
  Complete submission text file 0001418812-19-000013.txt   17629
Mailing Address 2500 COLUMBIA AVE LANCASTER PA 17603
Business Address 2500 COLUMBIA AVE LANCASTER PA 17603 7173970611
ARMSTRONG WORLD INDUSTRIES INC (Issuer) CIK: 0000007431 (see all company filings)

IRS No.: 230366390 | State of Incorp.: PA | Fiscal Year End: 1231
SIC: 3089 Plastics Products, NEC

Mailing Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129
Business Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129 415-362-3700
ValueAct Capital Management, L.P. (Reporting) CIK: 0001351069 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-02116 | Film No.: 19678911

Mailing Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129
Business Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129 415-362-3700
ValueAct Capital Management, LLC (Reporting) CIK: 0001351073 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-02116 | Film No.: 19678912

Mailing Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129
Business Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129 415-362-3700
VA Partners I, LLC (Reporting) CIK: 0001418812 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-02116 | Film No.: 19678910

Mailing Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129
Business Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129 415-362-3700
ValueAct Holdings GP, LLC (Reporting) CIK: 0001418813 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-02116 | Film No.: 19678914

Mailing Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129
Business Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129 415-362-3700
ValueAct Holdings, L.P. (Reporting) CIK: 0001418814 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-02116 | Film No.: 19678908

Mailing Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129
Business Address ONE LETTERMAN DRIVE BUILDING D, 4TH FLOOR SAN FRANCISCO CA 94129 415-362-3700
ValueAct Capital Master Fund, L.P. (Reporting) CIK: 0001464912 (see all company filings)

State of Incorp.: D8 | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-02116 | Film No.: 19678909

Mailing Address ONE LETTERMAN DRIVE BUILDING D, FOURTH FLOOR SAN FRANCISCO CA 94129
Business Address ONE LETTERMAN DRIVE BUILDING D, FOURTH FLOOR SAN FRANCISCO CA 94129 4153623700
ValueAct Holdings II, L.P. (Reporting) CIK: 0001763309 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 001-02116 | Film No.: 19678913