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Filing Detail
Form N-CSRS - Certified Shareholder Report, Semi-Annual:
SEC Accession No. 0001193125-23-117229
Filing Date
2023-04-26
Accepted
2023-04-26 10:03:00
Documents
3
Period of Report
2023-02-28
Effectiveness Date
2023-04-26

Document Format Files

Seq Description Document Type Size
1 U.S. TREASURY RESERVES PORTFOLIO d799019dncsrs.htm N-CSRS 205851
2 CERTIFICATIONS 302 d799019dex99cert.htm EX-99.CERT 20997
3 CERTIFICATIONS 906 d799019dex99906ct.htm EX-99.906CT 4116
  Complete submission text file 0001193125-23-117229.txt   232470

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0001140869      
Series S000018042   U.S. Treasury Reserves Portfolio
Class/Contract C000049972   U.S. Treasury Reserves Portfolio
Mailing Address LEGG MASON & CO., LLC 620 EIGHTH AVENUE, 49TH FLOOR NEW YORK NY 10018
Business Address LEGG MASON & CO., LLC 620 EIGHTH AVENUE, 49TH FLOOR NEW YORK NY 10018 1-877-721-1926
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.: 23847198