Form 497K - Summary Prospectus for certain open-end management investment companies filed pursuant to Securities Act Rule 497(K):
SEC Accession No. 0000932471-11-000090
Filing Date
2011-01-26
Accepted
2011-01-26 10:26:07
Documents
3
Effectiveness Date
2011-01-26

Document Format Files

Seq Description Document Type Size
1 PRIMECAP FUND SUMMARY PROSPECTUS primecapfdspi559012011.htm 497K 28731
3 primecapfdspi559012011x1x1.jpg GRAPHIC 2599
4 primecapfdspi559012011x4x1.jpg GRAPHIC 7956
  Complete submission text file 0000932471-11-000090.txt   45540

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0000752177      
Series S000002568   Vanguard PRIMECAP Fund
Class/Contract C000007071   Admiral Shares VPMAX
Mailing Address P.O. BOX 2600 VALLEY FORGE PA 19482
Business Address PO BOX 2600 VM #V34 VALLEY FORGE PA 19482 6106696289
VANGUARD CHESTER FUNDS (Filer) CIK: 0000752177 (see all company filings)

EIN.: 232311358 | Fiscal Year End: 0831
Type: 497K | Act: 33 | File No.: 002-92948 | Film No.: 11548246