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Filing Detail
Form N-CSRS - Certified Shareholder Report, Semi-Annual:
SEC Accession No. 0001193125-11-107137
Filing Date
2011-04-25
Accepted
2011-04-25 10:22:56
Documents
3
Period of Report
2011-02-28
Effectiveness Date
2011-04-25

Document Format Files

Seq Description Document Type Size
1 MASTER PORTFOLIO TRUST--PRIME CASH RESERVES PORTFOLIO dncsrs.htm N-CSRS 587213
2 CERTIFICATIONS 302 dex99cert.htm EX-99.CERT 18524
3 CERTIFICATIONS 906 dex99906ct.htm EX-99.906CT 4656
  Complete submission text file 0001193125-11-107137.txt   611899

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0001140869      
Series S000010769   Prime Cash Reserves Portfolio
Class/Contract C000029767   Prime Cash Reserves Portfolio
Mailing Address LEGG MASON & CO., LLC 55 WATER STREET, 32ND FLOOR NORTH NEW YORK NY 10041
Business Address LEGG MASON & CO., LLC 55 WATER STREET, 32ND FLOOR NORTH NEW YORK NY 10041 800-451-2010
MASTER PORTFOLIO TRUST (Filer) CIK: 0001140869 (see all company filings)

IRS No.: 000000000 | State of Incorp.: MD | Fiscal Year End: 0831
Type: N-CSRS | Act: 40 | File No.: 811-10407 | Film No.: 11776573