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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000080255-12-000424
Filing Date
2012-02-13
Accepted
2012-02-13 11:49:21
Documents
1

Document Format Files

Seq Description Document Type Size
1 AYE AS OF 12/31/11 aye13gadec11.htm SC 13G/A 23624
  Complete submission text file 0000080255-12-000424.txt   25450
Mailing Address 800 CABIN HILL DRIVE GREENSBURG PA 15601
Business Address 800 CABIN HILL DRIVE GREENSBURG PA 15601 7248373000
ALLEGHENY ENERGY, INC (Subject) CIK: 0000003673 (see all company filings)

IRS No.: 135531602 | State of Incorp.: MD | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-41366 | Film No.: 12596477
SIC: 4911 Electric Services

Mailing Address P.O. BOX 89000 BALTIMORE MD 21289
Business Address 100 EAST PRATT ST BALTIMORE MD 21202 (410)345-6603
PRICE T ROWE ASSOCIATES INC /MD/ (Filed by) CIK: 0000080255 (see all company filings)

IRS No.: 520556948 | State of Incorp.: MD | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 6200 Security & Commodity Brokers, Dealers, Exchanges & Services