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Filing Detail
Form 425 - Prospectuses and communications, business combinations:
SEC Accession No. 0000100334-05-000033
Filing Date
2005-12-14
Accepted
2005-12-14 16:46:45
Documents
1

Document Format Files

Seq Description Document Type Size
1 425 dec2005-425.htm 425 11309
  Complete submission text file 0000100334-05-000033.txt   13319
Mailing Address TWENTIETH CENTURY INVESTORS INC 4500 MAIN STREET KANSAS CITY MO 64141-6200
Business Address 4500 MAIN ST P O BOX 419200 KANSAS CITY MO 64141 8165315575
AMERICAN CENTURY MUTUAL FUNDS INC (Filed by) CIK: 0000100334 (see all company filings)

IRS No.: 446006315 | State of Incorp.: MO | Fiscal Year End: 1031
Type: 425
SIC: 0000

Mailing Address 720 EAST WISCONSIN AVENUE MILWAUKEE WI 53202
Business Address 720 E WISCONSIN AVE MILWAUKEE WI 53202 4146652508
MASON STREET FUNDS INC (Subject) CIK: 0001023744 (see all company filings)

IRS No.: 391861700 | State of Incorp.: MD | Fiscal Year End: 0331
Type: 425 | Act: 34 | File No.: 811-07961 | Film No.: 051264320