Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001033427-18-000014
Filing Date
2018-02-06
Accepted
2018-02-06 09:12:48
Documents
1

Document Format Files

Seq Description Document Type Size
1 allegheny13ga112312017.htm SC 13G/A 71750
  Complete submission text file 0001033427-18-000014.txt   73282
Mailing Address 100 SIX PPG PLACE PITTSBURGH PA 15222
Business Address 1000 SIX PPG PLACE PITTSBURGH PA 15222 4123942800
ALLEGHENY TECHNOLOGIES INC (Subject) CIK: 0001018963 (see all company filings)

EIN.: 251792394 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-46715 | Film No.: 18576336
SIC: 3317 Steel Pipe & Tubes

Mailing Address 276 POST ROAD WEST WESTPORT CT 06880-4704
Business Address 276 POST ROAD WEST WESTPORT CT 06880-4704 2033417800
IRIDIAN ASSET MANAGEMENT LLC/CT (Filed by) CIK: 0001033427 (see all company filings)

EIN.: 061439577 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A