# EDGAR Filing Document

**Accession Number:** 0000889512
**File Stem:** 0001145549-25-050885
**Filing Date:** 2025-8
**Character Count:** 17965
**Document Hash:** 4432b2bb80c0d3c34c2227ac11544bb9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001145549-25-050885.hdr.sgml**: 20250807

**ACCESSION NUMBER**: 0001145549-25-050885

**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:** 251193550

**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 Premier Institutional U.S. Treasury Reserves (Series ID: S000066841)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000215196 | Premium Shares | WAEXX           |
| C000215197 | Capital Shares | WADXX           |

# 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 Premier Institutional U.S. Treasury Reserves

**LEI of Series:** 549300FS1J68EF5THY28

**EDGAR Series Identifier:** S000066841

**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:** $1728678160.98

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

- **Cash:** $0.00

- **Total Other Assets:** $6150.75

- **Total Liabilities:** $7348082.98

- **Net Assets of Series:** $1721336228.75

- **Number of Shares Outstanding (Series):** 1721348618.6700

- **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 | 4.3300%             |
| 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 | 4.3400%             |
| 2025-07-16 | 4.3400%             |
| 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 | 4.3500%             |

### Daily Net Asset Value per Share (Series)
| Date       | Net Asset Value per Share   |
|:---|:---|
| 2025-07-01 | 1.0000                      |
|  |  |
| 2025-07-02 | 1.0000                      |
|  |  |
| 2025-07-03 | 1.0000                      |
|  |  |
| 2025-07-07 | 1.0000                      |
|  |  |
| 2025-07-08 | 1.0000                      |
|  |  |
| 2025-07-09 | 1.0000                      |
|  |  |
| 2025-07-10 | 1.0000                      |
|  |  |
| 2025-07-11 | 1.0000                      |
|  |  |
| 2025-07-14 | 1.0000                      |
|  |  |
| 2025-07-15 | 1.0000                      |
|  |  |
| 2025-07-16 | 1.0000                      |
|  |  |
| 2025-07-17 | 1.0000                      |
|  |  |
| 2025-07-18 | 1.0000                      |
|  |  |
| 2025-07-21 | 1.0000                      |
|  |  |
| 2025-07-22 | 1.0000                      |
|  |  |
| 2025-07-23 | 1.0000                      |
|  |  |
| 2025-07-24 | 1.0000                      |
|  |  |
| 2025-07-25 | 1.0000                      |
|  |  |
| 2025-07-28 | 1.0000                      |
|  |  |
| 2025-07-29 | 1.0000                      |
|  |  |
| 2025-07-30 | 1.0000                      |
|  |  |
| 2025-07-31 | 1.0000                      |
|  |  |

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

### Class: PC

- **Minimum Initial Investment:** $1.00

- **Net Assets of Class:** $1684682333.31

- **Number of Shares Outstanding:** 1684697436.5000

- **Expense Reimbursement/Waiver:** 226995.46

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2025-07-01 | 1.0000          |
|  |  |
| 2025-07-02 | 1.0000          |
|  |  |
| 2025-07-03 | 1.0000          |
|  |  |
| 2025-07-07 | 1.0000          |
|  |  |
| 2025-07-08 | 1.0000          |
|  |  |
| 2025-07-09 | 1.0000          |
|  |  |
| 2025-07-10 | 1.0000          |
|  |  |
| 2025-07-11 | 1.0000          |
|  |  |
| 2025-07-14 | 1.0000          |
|  |  |
| 2025-07-15 | 1.0000          |
|  |  |
| 2025-07-16 | 1.0000          |
|  |  |
| 2025-07-17 | 1.0000          |
|  |  |
| 2025-07-18 | 1.0000          |
|  |  |
| 2025-07-21 | 1.0000          |
|  |  |
| 2025-07-22 | 1.0000          |
|  |  |
| 2025-07-23 | 1.0000          |
|  |  |
| 2025-07-24 | 1.0000          |
|  |  |
| 2025-07-25 | 1.0000          |
|  |  |
| 2025-07-28 | 1.0000          |
|  |  |
| 2025-07-29 | 1.0000          |
|  |  |
| 2025-07-30 | 1.0000          |
|  |  |
| 2025-07-31 | 1.0000          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2025-07-01 | $2421421.30               | $52223560.68            |
| 2025-07-02 | $12780758.94              | $0.00                   |
| 2025-07-03 | $30358095.90              | $0.00                   |
| 2025-07-07 | $0.00                     | $53510864.35            |
| 2025-07-08 | $15438230.51              | $100000000.00           |
| 2025-07-09 | $0.00                     | $10336.07               |
| 2025-07-10 | $144558091.88             | $0.00                   |
| 2025-07-11 | $38489088.97              | $0.00                   |
| 2025-07-14 | $0.00                     | $117840053.90           |
| 2025-07-15 | $33840652.75              | $0.00                   |
| 2025-07-16 | $11500000.00              | $9297115.60             |
| 2025-07-17 | $0.00                     | $36355252.98            |
| 2025-07-18 | $5407170.41               | $0.00                   |
| 2025-07-21 | $11691599.66              | $0.00                   |
| 2025-07-22 | $0.00                     | $42613279.39            |
| 2025-07-23 | $4453435.03               | $0.00                   |
| 2025-07-24 | $0.00                     | $32884974.81            |
| 2025-07-25 | $211596116.46             | $0.00                   |
| 2025-07-28 | $9753097.94               | $12000000.00            |
| 2025-07-29 | $0.00                     | $186464065.03           |
| 2025-07-30 | $44638288.77              | $100000000.00           |
| 2025-07-31 | $18981434.10              | $0.00                   |

**Total Gross Subscriptions (Month):** $595907482.62

**Total Gross Redemptions (Month):** $743199502.81

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2025-07-01 | 4.1900%           |
| 2025-07-02 | 4.1800%           |
| 2025-07-03 | 4.1800%           |
| 2025-07-07 | 4.1800%           |
| 2025-07-08 | 4.1800%           |
| 2025-07-09 | 4.1800%           |
| 2025-07-10 | 4.1900%           |
| 2025-07-11 | 4.1900%           |
| 2025-07-14 | 4.1900%           |
| 2025-07-15 | 4.2000%           |
| 2025-07-16 | 4.2000%           |
| 2025-07-17 | 4.2000%           |
| 2025-07-18 | 4.2000%           |
| 2025-07-21 | 4.2000%           |
| 2025-07-22 | 4.2000%           |
| 2025-07-23 | 4.2000%           |
| 2025-07-24 | 4.2000%           |
| 2025-07-25 | 4.2000%           |
| 2025-07-28 | 4.2000%           |
| 2025-07-29 | 4.2000%           |
| 2025-07-30 | 4.2000%           |
| 2025-07-31 | 4.2100%           |

**Beneficial/Record Owner Categories**
| Category                  | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Non-financial corporation |  | 12.0700%         | 0.0000%              |
| Non-financial corporation |  | 5.9600%          | 0.0000%              |
| Non-financial corporation |  | 78.2800%         | 0.0000%              |

### Class: CC

- **Minimum Initial Investment:** $200000000.00

- **Net Assets of Class:** $36653895.44

- **Number of Shares Outstanding:** 36651182.1700

- **Expense Reimbursement/Waiver:** 34098.18

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2025-07-01 | 1.0001          |
|  |  |
| 2025-07-02 | 1.0000          |
|  |  |
| 2025-07-03 | 1.0000          |
|  |  |
| 2025-07-07 | 1.0000          |
|  |  |
| 2025-07-08 | 1.0000          |
|  |  |
| 2025-07-09 | 1.0000          |
|  |  |
| 2025-07-10 | 1.0000          |
|  |  |
| 2025-07-11 | 1.0000          |
|  |  |
| 2025-07-14 | 1.0000          |
|  |  |
| 2025-07-15 | 1.0000          |
|  |  |
| 2025-07-16 | 1.0000          |
|  |  |
| 2025-07-17 | 1.0000          |
|  |  |
| 2025-07-18 | 1.0000          |
|  |  |
| 2025-07-21 | 1.0000          |
|  |  |
| 2025-07-22 | 1.0000          |
|  |  |
| 2025-07-23 | 1.0000          |
|  |  |
| 2025-07-24 | 1.0000          |
|  |  |
| 2025-07-25 | 1.0000          |
|  |  |
| 2025-07-28 | 1.0000          |
|  |  |
| 2025-07-29 | 1.0000          |
|  |  |
| 2025-07-30 | 1.0000          |
|  |  |
| 2025-07-31 | 1.0001          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2025-07-01 | $174293.39                | $0.00                   |
| 2025-07-02 | $119000000.00             | $0.00                   |
| 2025-07-03 | $0.00                     | $15000000.00            |
| 2025-07-14 | $32000000.00              | $0.00                   |
| 2025-07-15 | $38300000.00              | $22000000.00            |
| 2025-07-16 | $14700000.00              | $38300000.00            |
| 2025-07-17 | $0.00                     | $14700000.00            |
| 2025-07-21 | $15000000.00              | $0.00                   |
| 2025-07-22 | $0.00                     | $15000000.00            |
| 2025-07-24 | $0.00                     | $8000000.00             |
| 2025-07-28 | $13400000.00              | $0.00                   |
| 2025-07-29 | $0.00                     | $13400000.00            |
| 2025-07-30 | $0.00                     | $5000000.00             |
| 2025-07-31 | $0.00                     | $109000000.00           |

**Total Gross Subscriptions (Month):** $232574293.39

**Total Gross Redemptions (Month):** $240400000.00

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2025-07-01 | 4.2100%           |
| 2025-07-02 | 4.2000%           |
| 2025-07-03 | 4.2000%           |
| 2025-07-07 | 4.2000%           |
| 2025-07-08 | 4.2000%           |
| 2025-07-09 | 4.2000%           |
| 2025-07-10 | 4.2100%           |
| 2025-07-11 | 4.2100%           |
| 2025-07-14 | 4.2100%           |
| 2025-07-15 | 4.2200%           |
| 2025-07-16 | 4.2200%           |
| 2025-07-17 | 4.2200%           |
| 2025-07-18 | 4.2200%           |
| 2025-07-21 | 4.2200%           |
| 2025-07-22 | 4.2200%           |
| 2025-07-23 | 4.2200%           |
| 2025-07-24 | 4.2200%           |
| 2025-07-25 | 4.2200%           |
| 2025-07-28 | 4.2200%           |
| 2025-07-29 | 4.2200%           |
| 2025-07-30 | 4.2200%           |
| 2025-07-31 | 4.2300%           |

**Beneficial/Record Owner Categories**
| Category                  | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Non-financial corporation |  | 5.3800%          | 0.0000%              |
| Non-financial corporation |  | 6.2800%          | 0.0000%              |
| Non-financial corporation |  | 7.6600%          | 0.0000%              |
| Non-financial corporation |  | 29.0800%         | 0.0000%              |
| Non-financial corporation |  | 46.5100%         | 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):** $1728678160.98
- **C.18.a - Value (excl. sponsor support):** $1728678160.98
- **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