# EDGAR Filing Document

**Accession Number:** 0000889512
**File Stem:** 0001145549-25-050881
**Filing Date:** 2025-8
**Character Count:** 18173
**Document Hash:** a7831041f94c468f94733e58cf2a6f5f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001145549-25-050881.hdr.sgml**: 20250807

**ACCESSION NUMBER**: 0001145549-25-050881

**CONFORMED SUBMISSION TYPE**: N-MFP3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250731

**FILED AS OF DATE**: 20250807

**DATE AS OF CHANGE**: 20250807

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LEGG MASON PARTNERS INSTITUTIONAL TRUST
- **CENTRAL INDEX KEY:** 0000889512

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 0831

**FILING VALUES:**
- **FORM TYPE:** N-MFP3
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-06740
- **FILM NUMBER:** 251193540

**BUSINESS ADDRESS:**
- **STREET 1:** LEGG MASON & CO., LLC
- **STREET 2:** 620 EIGHTH AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10018
- **BUSINESS PHONE:** 1-877-721-1926

**MAIL ADDRESS:**
- **STREET 1:** LEGG MASON & CO., LLC
- **STREET 2:** 620 EIGHTH AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10018

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CITIFUNDS INSTITUTIONAL TRUST
- **DATE OF NAME CHANGE:** 19981030

## Series and Classes Contracts Data

### Western Asset Institutional U.S. Treasury Reserves (Series ID: S000008910)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000024239 | Institutional Shares | CIIXX           |
| C000089733 | Investor Shares      | LTRXX           |

# Form N-MFP3: Monthly Schedule of Portfolio Holdings

## N-MFP: Filer Information
**Submission Type:** N-MFP3
**CIK:** 0000889512

### General Information

**Report for (YYYY-MM-DD):** 2025-07-31

**Registrant Full Name:** Legg Mason Partners Institutional Trust

**CIK Number of Registrant:** 0000889512

**LEI of Registrant:** 54930003LJE4ZPPMRV82

**Name of Series:** Western Asset Institutional U.S. Treasury Reserves

**LEI of Series:** 549300QC7GUBE6E4RH57

**EDGAR Series Identifier:** S000008910

**Total number of share classes in the series:** 2

**Is this the fund's final filing on Form N-MFP?:** No

**Has the fund acquired or merged with another fund?:** No

## Part A: Series-Level Information about the Fund

### Service Providers
| Role                          | Details                                                      | File/CIK Number   |
|:---|:---|:---|
| Investment Adviser            | Franklin Templeton Fund Adviser LLC                          | 801-66785         |
| Independent Public Accountant | PricewaterhouseCoopers LLP<br>City: Baltimore<br>State: MD   |  |
| Transfer Agent                | BNY Mellon Investment Servicing (US) Inc.<br>CIK: 0000849542 | 084-01761         |

### Fund Characteristics & Assets

- **Securities Act File Number:** 033-49552

- **Is this a Feeder Fund?:** Yes

- **Is this a Master Fund?:** No

- **Is this series for insurance company separate accounts?:** No

- **Money Market Fund Category:** Government

- **Is this a Retail Money Market Fund?:** No

- **Is this a Government Money Market Fund?:** No

- **WAM:** 6 days

- **WAL:** 6 days

- **Total Value of Portfolio Securities:** $7498996296.28

- **Amortized Cost of Portfolio Securities:** $0.00

- **Cash:** $0.00

- **Total Other Assets:** $77417.11

- **Total Liabilities:** $26839062.85

- **Net Assets of Series:** $7472234650.54

- **Number of Shares Outstanding (Series):** 7472713159.6200

- **Does the fund seek to maintain a stable price per share?:** Yes

- **Stable Price Per Share:** $1.00

- **Is cash management vehicle an affiliated fund?:** No

- **Does the fund apply liquidity fees?:** No

### Daily & Weekly Liquid Assets
| Date       | Daily Liquid Assets ($)   | Weekly Liquid Assets ($)   | Daily Liquid Assets (%)   | Weekly Liquid Assets (%)   |
|:---|:---|:---|:---|:---|
| 2025-07-01 | $18888987162.66           | $18888987162.66            | 99.7900%                  | 99.7900%                   |
| 2025-07-02 | $19387000349.23           | $19387000349.23            | 99.7900%                  | 99.7900%                   |
| 2025-07-03 | $19040751015.21           | $19040751015.21            | 99.7800%                  | 99.7800%                   |
| 2025-07-07 | $19133041884.56           | $19133041884.56            | 99.7700%                  | 99.7700%                   |
| 2025-07-08 | $18689696725.13           | $18689696725.13            | 99.7600%                  | 99.7600%                   |
| 2025-07-09 | $18572448476.78           | $18572448476.78            | 99.7600%                  | 99.7600%                   |
| 2025-07-10 | $18571563259.07           | $18571563259.07            | 99.7600%                  | 99.7600%                   |
| 2025-07-11 | $18290063167.12           | $18290063167.12            | 99.7400%                  | 99.7400%                   |
| 2025-07-14 | $18583877575.50           | $18583877575.50            | 99.7400%                  | 99.7400%                   |
| 2025-07-15 | $18458497210.19           | $18458497210.19            | 99.7500%                  | 99.7500%                   |
| 2025-07-16 | $18510033141.55           | $18510033141.55            | 99.7400%                  | 99.7400%                   |
| 2025-07-17 | $17948446111.78           | $17948446111.78            | 99.7300%                  | 99.7300%                   |
| 2025-07-18 | $18094533157.55           | $18094533157.55            | 99.7200%                  | 99.7200%                   |
| 2025-07-21 | $18855168253.44           | $18855168253.44            | 99.7300%                  | 99.7300%                   |
| 2025-07-22 | $18385614359.50           | $18385614359.50            | 99.7200%                  | 99.7200%                   |
| 2025-07-23 | $18330036744.77           | $18330036744.77            | 99.7100%                  | 99.7100%                   |
| 2025-07-24 | $18309016013.85           | $18309016013.85            | 99.7100%                  | 99.7100%                   |
| 2025-07-25 | $18439994891.97           | $18439994891.97            | 99.7000%                  | 99.7000%                   |
| 2025-07-28 | $18618777847.77           | $18618777847.77            | 99.7200%                  | 99.7200%                   |
| 2025-07-29 | $18075919986.90           | $18075919986.90            | 99.7000%                  | 99.7000%                   |
| 2025-07-30 | $18115537945.04           | $18115537945.04            | 99.7000%                  | 99.7000%                   |
| 2025-07-31 | $17910919682.78           | $17910919682.78            | 99.9400%                  | 99.9400%                   |

### 7-Day Gross Yield
| Date       | 7-Day Gross Yield   |
|:---|:---|
| 2025-07-01 | 4.3200%             |
| 2025-07-02 | 4.3200%             |
| 2025-07-03 | 4.3200%             |
| 2025-07-07 | 4.3200%             |
| 2025-07-08 | 4.3200%             |
| 2025-07-09 | 4.3200%             |
| 2025-07-10 | 4.3300%             |
| 2025-07-11 | 4.3300%             |
| 2025-07-14 | 4.3300%             |
| 2025-07-15 | 4.3300%             |
| 2025-07-16 | 4.3300%             |
| 2025-07-17 | 4.3400%             |
| 2025-07-18 | 4.3400%             |
| 2025-07-21 | 4.3400%             |
| 2025-07-22 | 4.3400%             |
| 2025-07-23 | 4.3400%             |
| 2025-07-24 | 4.3400%             |
| 2025-07-25 | 4.3400%             |
| 2025-07-28 | 4.3400%             |
| 2025-07-29 | 4.3400%             |
| 2025-07-30 | 4.3400%             |
| 2025-07-31 | 4.3400%             |

### Daily Net Asset Value per Share (Series)
| Date       | Net Asset Value per Share   |
|:---|:---|
| 2025-07-01 | 0.9999                      |
|  |  |
| 2025-07-02 | 0.9999                      |
|  |  |
| 2025-07-03 | 0.9999                      |
|  |  |
| 2025-07-07 | 0.9999                      |
|  |  |
| 2025-07-08 | 0.9999                      |
|  |  |
| 2025-07-09 | 0.9999                      |
|  |  |
| 2025-07-10 | 0.9999                      |
|  |  |
| 2025-07-11 | 0.9999                      |
|  |  |
| 2025-07-14 | 0.9999                      |
|  |  |
| 2025-07-15 | 0.9999                      |
|  |  |
| 2025-07-16 | 0.9999                      |
|  |  |
| 2025-07-17 | 0.9999                      |
|  |  |
| 2025-07-18 | 0.9999                      |
|  |  |
| 2025-07-21 | 0.9999                      |
|  |  |
| 2025-07-22 | 0.9999                      |
|  |  |
| 2025-07-23 | 0.9999                      |
|  |  |
| 2025-07-24 | 0.9999                      |
|  |  |
| 2025-07-25 | 0.9999                      |
|  |  |
| 2025-07-28 | 0.9999                      |
|  |  |
| 2025-07-29 | 0.9999                      |
|  |  |
| 2025-07-30 | 0.9999                      |
|  |  |
| 2025-07-31 | 0.9999                      |
|  |  |

## Part B: Class-Level Information about the Fund

### Class: 0L

- **Minimum Initial Investment:** $1000000.00

- **Net Assets of Class:** $4726340757.22

- **Number of Shares Outstanding:** 4726637255.8900

- **Expense Reimbursement/Waiver:** 593611.06

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2025-07-01 | 0.9999          |
|  |  |
| 2025-07-02 | 0.9999          |
|  |  |
| 2025-07-03 | 0.9999          |
|  |  |
| 2025-07-07 | 0.9999          |
|  |  |
| 2025-07-08 | 0.9999          |
|  |  |
| 2025-07-09 | 0.9999          |
|  |  |
| 2025-07-10 | 0.9999          |
|  |  |
| 2025-07-11 | 0.9999          |
|  |  |
| 2025-07-14 | 0.9999          |
|  |  |
| 2025-07-15 | 0.9999          |
|  |  |
| 2025-07-16 | 0.9999          |
|  |  |
| 2025-07-17 | 0.9999          |
|  |  |
| 2025-07-18 | 0.9999          |
|  |  |
| 2025-07-21 | 0.9999          |
|  |  |
| 2025-07-22 | 0.9999          |
|  |  |
| 2025-07-23 | 0.9999          |
|  |  |
| 2025-07-24 | 0.9999          |
|  |  |
| 2025-07-25 | 0.9999          |
|  |  |
| 2025-07-28 | 0.9999          |
|  |  |
| 2025-07-29 | 0.9999          |
|  |  |
| 2025-07-30 | 0.9999          |
|  |  |
| 2025-07-31 | 0.9999          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2025-07-01 | $39523525.78              | $147804427.64           |
| 2025-07-02 | $189729326.68             | $26339690.94            |
| 2025-07-03 | $55164887.75              | $53779062.77            |
| 2025-07-07 | $23003712.90              | $160388269.81           |
| 2025-07-08 | $14153933.07              | $20786768.92            |
| 2025-07-09 | $20568025.27              | $86640655.99            |
| 2025-07-10 | $126229872.06             | $41001419.59            |
| 2025-07-11 | $66130562.20              | $248815304.54           |
| 2025-07-14 | $30822610.66              | $17562352.16            |
| 2025-07-15 | $36119454.56              | $101994651.81           |
| 2025-07-16 | $164419555.21             | $18956341.10            |
| 2025-07-17 | $183172053.95             | $148757860.05           |
| 2025-07-18 | $68122949.96              | $31236228.33            |
| 2025-07-21 | $164355374.78             | $53241362.89            |
| 2025-07-22 | $19679820.93              | $139154406.09           |
| 2025-07-23 | $51882222.24              | $36007320.51            |
| 2025-07-24 | $139105927.48             | $33259911.30            |
| 2025-07-25 | $15180973.62              | $39495337.86            |
| 2025-07-28 | $83740117.18              | $72137065.28            |
| 2025-07-29 | $58420033.56              | $11967570.37            |
| 2025-07-30 | $37481730.06              | $16736078.37            |
| 2025-07-31 | $19040005.34              | $66617262.78            |

**Total Gross Subscriptions (Month):** $1606046675.24

**Total Gross Redemptions (Month):** $1572679349.10

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2025-07-01 | 4.1400%           |
| 2025-07-02 | 4.1400%           |
| 2025-07-03 | 4.1400%           |
| 2025-07-07 | 4.1400%           |
| 2025-07-08 | 4.1400%           |
| 2025-07-09 | 4.1400%           |
| 2025-07-10 | 4.1500%           |
| 2025-07-11 | 4.1500%           |
| 2025-07-14 | 4.1500%           |
| 2025-07-15 | 4.1500%           |
| 2025-07-16 | 4.1500%           |
| 2025-07-17 | 4.1600%           |
| 2025-07-18 | 4.1600%           |
| 2025-07-21 | 4.1600%           |
| 2025-07-22 | 4.1600%           |
| 2025-07-23 | 4.1600%           |
| 2025-07-24 | 4.1600%           |
| 2025-07-25 | 4.1600%           |
| 2025-07-28 | 4.1600%           |
| 2025-07-29 | 4.1600%           |
| 2025-07-30 | 4.1600%           |
| 2025-07-31 | 4.1600%           |

**Beneficial/Record Owner Categories**
| Category      | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Broker-dealer |  | 30.2200%         | 0.0000%              |
| Broker-dealer |  | 36.6600%         | 0.0000%              |

### Class: 0I

- **Minimum Initial Investment:** $1000000.00

- **Net Assets of Class:** $2745893893.32

- **Number of Shares Outstanding:** 2746075903.7300

- **Expense Reimbursement/Waiver:** 465293.27

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2025-07-01 | 0.9999          |
|  |  |
| 2025-07-02 | 0.9999          |
|  |  |
| 2025-07-03 | 0.9999          |
|  |  |
| 2025-07-07 | 0.9999          |
|  |  |
| 2025-07-08 | 0.9999          |
|  |  |
| 2025-07-09 | 0.9999          |
|  |  |
| 2025-07-10 | 0.9999          |
|  |  |
| 2025-07-11 | 0.9999          |
|  |  |
| 2025-07-14 | 0.9999          |
|  |  |
| 2025-07-15 | 0.9999          |
|  |  |
| 2025-07-16 | 0.9999          |
|  |  |
| 2025-07-17 | 0.9999          |
|  |  |
| 2025-07-18 | 0.9999          |
|  |  |
| 2025-07-21 | 0.9999          |
|  |  |
| 2025-07-22 | 0.9999          |
|  |  |
| 2025-07-23 | 0.9999          |
|  |  |
| 2025-07-24 | 0.9999          |
|  |  |
| 2025-07-25 | 0.9999          |
|  |  |
| 2025-07-28 | 0.9999          |
|  |  |
| 2025-07-29 | 0.9999          |
|  |  |
| 2025-07-30 | 0.9999          |
|  |  |
| 2025-07-31 | 0.9999          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2025-07-01 | $8353899.66               | $66513158.04            |
| 2025-07-02 | $6965417.58               | $0.00                   |
| 2025-07-03 | $24397114.08              | $0.00                   |
| 2025-07-07 | $0.00                     | $17103001.24            |
| 2025-07-08 | $38911927.85              | $0.00                   |
| 2025-07-09 | $0.00                     | $15019406.12            |
| 2025-07-10 | $16801261.48              | $0.00                   |
| 2025-07-11 | $34173348.24              | $0.00                   |
| 2025-07-14 | $0.00                     | $949302.52              |
| 2025-07-15 | $42007408.21              | $0.00                   |
| 2025-07-16 | $14785039.68              | $0.00                   |
| 2025-07-17 | $0.00                     | $169726297.78           |
| 2025-07-18 | $35072345.34              | $0.00                   |
| 2025-07-21 | $12625911.51              | $1300.00                |
| 2025-07-22 | $26010551.10              | $0.00                   |
| 2025-07-23 | $0.00                     | $96259840.64            |
| 2025-07-24 | $140414226.85             | $0.00                   |
| 2025-07-25 | $39888354.14              | $0.00                   |
| 2025-07-28 | $5209190.77               | $0.00                   |
| 2025-07-29 | $372353670.97             | $0.00                   |
| 2025-07-30 | $29080472.35              | $0.00                   |
| 2025-07-31 | $0.00                     | $423065538.24           |

**Total Gross Subscriptions (Month):** $847050139.81

**Total Gross Redemptions (Month):** $788637844.58

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2025-07-01 | 4.0900%           |
| 2025-07-02 | 4.0900%           |
| 2025-07-03 | 4.0900%           |
| 2025-07-07 | 4.0900%           |
| 2025-07-08 | 4.0900%           |
| 2025-07-09 | 4.0900%           |
| 2025-07-10 | 4.1000%           |
| 2025-07-11 | 4.1000%           |
| 2025-07-14 | 4.1000%           |
| 2025-07-15 | 4.1000%           |
| 2025-07-16 | 4.1000%           |
| 2025-07-17 | 4.1100%           |
| 2025-07-18 | 4.1100%           |
| 2025-07-21 | 4.1100%           |
| 2025-07-22 | 4.1100%           |
| 2025-07-23 | 4.1100%           |
| 2025-07-24 | 4.1100%           |
| 2025-07-25 | 4.1100%           |
| 2025-07-28 | 4.1100%           |
| 2025-07-29 | 4.1100%           |
| 2025-07-30 | 4.1100%           |
| 2025-07-31 | 4.1100%           |

**Beneficial/Record Owner Categories**
| Category                                            | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Depository institution or other banking institution |  | 99.6300%         | 0.0000%              |

## Part C: Schedule of Portfolio Securities

### Security 1: U.S. Treasury Reserves Portfolio

- **C.1 - Title:** U.S. Treasury Reserves Portfolio
- **C.6 - Investment Category:** Investment Company
- **Identifiers:** C.3 - CUSIP: NA, C.5 - Other ID: LMUSTREASURYRES
- **C.18 - Value (incl. sponsor support):** $7498996296.28
- **C.18.a - Value (excl. sponsor support):** $7498996296.28
- **C.19 - Percentage of Net Assets:** 100.0000%
- **C.17 - Yield as of Reporting Date:** 0.0000%
- **C.11 - Maturity Date (WAM):** 2025-08-01
- **C.12 - Maturity Date (WAL):** 2025-08-01
- **C.13 - Final Legal Maturity Date:** 2025-08-01
- **C.10 - Ratings:** Fitch, Inc.: NR; Moody's Investors Service, Inc.: NR; Standard and Poor's Ratings Services: NR
- **Characteristics:** C.9 Eligible Security? Yes, C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

## N-MFP: Signatures

**Registrant:** Legg Mason Partners Institutional Trust

**Date:** 2025-08-07

**By:** /s/Christopher Berarducci

**Name of Signing Officer:** Christopher Berarducci

**Title of Signing Officer:** Principal Financial Officer