SC 13G/A | SEC Filings Hub

Filing metadata

Accession number: 0000052388-13-000003
Form type: SC 13G
Filer: AMERICAN CENTURY INVESTMENT MANAGEMENT INC
CIK: CIK 52388
Filed: Feb 08, 2013
Reporting period: Jan 31, 2013
Description: Passive 5%+ stake

Documents

0000052388-13-000003-index.htm

Complete submission

0000052388-13-000003.txt

directory listing

Filed by

AMERICAN CENTURY INVESTMENT MANAGEMENT INC