# EDGAR Filing Document

**Accession Number:** 0000889512
**File Stem:** 0001145549-25-046161
**Filing Date:** 2025-7
**Character Count:** 17011
**Document Hash:** db12b6a01727ce5dd3a6424930d2527e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001145549-25-046161.hdr.sgml**: 20250708

**ACCESSION NUMBER**: 0001145549-25-046161

**CONFORMED SUBMISSION TYPE**: N-MFP3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250708

**DATE AS OF CHANGE**: 20250708

**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:** 251110821

**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):** 2025-06-30

**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:** $1884525755.82

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

- **Cash:** $0.00

- **Total Other Assets:** $15466.83

- **Total Liabilities:** $8087389.42

- **Net Assets of Series:** $1876453833.23

- **Number of Shares Outstanding (Series):** 1876466345.4700

- **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 (%)   |
|:---|:---|:---|:---|:---|
| 2025-06-02 | $18854950505.03           | $18854950505.03            | 99.8600%                  | 99.8600%                   |
| 2025-06-03 | $18621798711.95           | $18621798711.95            | 99.8500%                  | 99.8500%                   |
| 2025-06-04 | $18642349669.81           | $18642349669.81            | 99.8500%                  | 99.8500%                   |
| 2025-06-05 | $18108654616.09           | $18108654616.09            | 99.8400%                  | 99.8400%                   |
| 2025-06-06 | $18141673996.61           | $18141673996.61            | 99.8300%                  | 99.8300%                   |
| 2025-06-09 | $18263770896.69           | $18263770896.69            | 99.8300%                  | 99.8300%                   |
| 2025-06-10 | $17899219757.31           | $17899219757.31            | 99.8200%                  | 99.8200%                   |
| 2025-06-11 | $17880411815.20           | $17880411815.20            | 99.8100%                  | 99.8100%                   |
| 2025-06-12 | $17992090351.34           | $17992090351.34            | 99.8100%                  | 99.8100%                   |
| 2025-06-13 | $17857409902.75           | $17857409902.75            | 99.8000%                  | 99.8000%                   |
| 2025-06-16 | $17707502632.09           | $17707502632.09            | 99.7900%                  | 99.7900%                   |
| 2025-06-17 | $17537082572.67           | $17537082572.67            | 99.7900%                  | 99.7900%                   |
| 2025-06-18 | $18431856178.79           | $18431856178.79            | 99.7900%                  | 99.7900%                   |
| 2025-06-20 | $18603581754.97           | $18603581754.97            | 99.7800%                  | 99.7800%                   |
| 2025-06-23 | $18074864333.62           | $18074864333.62            | 99.7700%                  | 99.7700%                   |
| 2025-06-24 | $18040637267.77           | $18040637267.77            | 99.7700%                  | 99.7700%                   |
| 2025-06-25 | $18503043704.96           | $18503043704.96            | 99.7700%                  | 99.7700%                   |
| 2025-06-26 | $18538472748.39           | $18538472748.39            | 99.7500%                  | 99.7500%                   |
| 2025-06-27 | $17905176604.49           | $17905176604.49            | 99.7300%                  | 99.7300%                   |
| 2025-06-30 | $18388051261.77           | $18388051261.77            | 99.7900%                  | 99.7900%                   |

### 7-Day Gross Yield
| Date       | 7-Day Gross Yield   |
|:---|:---|
| 2025-06-02 | 4.3400%             |
| 2025-06-03 | 4.3400%             |
| 2025-06-04 | 4.3400%             |
| 2025-06-05 | 4.3300%             |
| 2025-06-06 | 4.3300%             |
| 2025-06-09 | 4.3300%             |
| 2025-06-10 | 4.3300%             |
| 2025-06-11 | 4.3300%             |
| 2025-06-12 | 4.3300%             |
| 2025-06-13 | 4.3300%             |
| 2025-06-16 | 4.3300%             |
| 2025-06-17 | 4.3300%             |
| 2025-06-18 | 4.3300%             |
| 2025-06-20 | 4.3300%             |
| 2025-06-23 | 4.3300%             |
| 2025-06-24 | 4.3300%             |
| 2025-06-25 | 4.3300%             |
| 2025-06-26 | 4.3300%             |
| 2025-06-27 | 4.3300%             |
| 2025-06-30 | 4.3300%             |

### Daily Net Asset Value per Share (Series)
| Date       | Net Asset Value per Share   |
|:---|:---|
| 2025-06-02 | 1.0000                      |
|  |  |
| 2025-06-03 | 1.0000                      |
|  |  |
| 2025-06-04 | 1.0000                      |
|  |  |
| 2025-06-05 | 1.0000                      |
|  |  |
| 2025-06-06 | 1.0000                      |
|  |  |
| 2025-06-09 | 1.0000                      |
|  |  |
| 2025-06-10 | 1.0000                      |
|  |  |
| 2025-06-11 | 1.0000                      |
|  |  |
| 2025-06-12 | 1.0000                      |
|  |  |
| 2025-06-13 | 1.0000                      |
|  |  |
| 2025-06-16 | 1.0000                      |
|  |  |
| 2025-06-17 | 1.0000                      |
|  |  |
| 2025-06-18 | 1.0000                      |
|  |  |
| 2025-06-20 | 1.0000                      |
|  |  |
| 2025-06-23 | 1.0000                      |
|  |  |
| 2025-06-24 | 1.0000                      |
|  |  |
| 2025-06-25 | 1.0000                      |
|  |  |
| 2025-06-26 | 1.0000                      |
|  |  |
| 2025-06-27 | 1.0000                      |
|  |  |
| 2025-06-30 | 1.0000                      |
|  |  |

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

### Class: PC

- **Minimum Initial Investment:** $1.00

- **Net Assets of Class:** $1831974234.64

- **Number of Shares Outstanding:** 1831989456.6900

- **Expense Reimbursement/Waiver:** 373950.16

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2025-06-02 | 1.0000          |
|  |  |
| 2025-06-03 | 1.0000          |
|  |  |
| 2025-06-04 | 1.0000          |
|  |  |
| 2025-06-05 | 1.0000          |
|  |  |
| 2025-06-06 | 1.0000          |
|  |  |
| 2025-06-09 | 1.0000          |
|  |  |
| 2025-06-10 | 1.0000          |
|  |  |
| 2025-06-11 | 1.0000          |
|  |  |
| 2025-06-12 | 1.0000          |
|  |  |
| 2025-06-13 | 1.0000          |
|  |  |
| 2025-06-16 | 1.0000          |
|  |  |
| 2025-06-17 | 1.0000          |
|  |  |
| 2025-06-18 | 1.0000          |
|  |  |
| 2025-06-20 | 1.0000          |
|  |  |
| 2025-06-23 | 1.0000          |
|  |  |
| 2025-06-24 | 1.0000          |
|  |  |
| 2025-06-25 | 1.0000          |
|  |  |
| 2025-06-26 | 1.0000          |
|  |  |
| 2025-06-27 | 1.0000          |
|  |  |
| 2025-06-30 | 1.0000          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2025-06-02 | $2240426.25               | $6267743.48             |
| 2025-06-03 | $12886000.02              | $31944716.17            |
| 2025-06-04 | $0.00                     | $47540226.64            |
| 2025-06-05 | $56298805.23              | $0.00                   |
| 2025-06-06 | $4035492.05               | $0.00                   |
| 2025-06-09 | $0.00                     | $11392333.58            |
| 2025-06-10 | $0.00                     | $5255395.41             |
| 2025-06-11 | $39207652.83              | $0.00                   |
| 2025-06-12 | $19298475.09              | $0.00                   |
| 2025-06-13 | $35608653.66              | $0.00                   |
| 2025-06-16 | $0.00                     | $35566091.97            |
| 2025-06-17 | $12000000.00              | $28743692.48            |
| 2025-06-18 | $7574376.33               | $0.00                   |
| 2025-06-20 | $39097888.73              | $0.00                   |
| 2025-06-23 | $0.00                     | $32517094.40            |
| 2025-06-24 | $53245543.70              | $0.00                   |
| 2025-06-25 | $0.00                     | $9896479.51             |
| 2025-06-26 | $0.00                     | $200972223.90           |
| 2025-06-27 | $4232958.37               | $0.00                   |
| 2025-06-30 | $53249831.75              | $152000000.00           |

**Total Gross Subscriptions (Month):** $338976104.01

**Total Gross Redemptions (Month):** $562095997.54

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2025-06-02 | 4.2000%           |
| 2025-06-03 | 4.2000%           |
| 2025-06-04 | 4.2000%           |
| 2025-06-05 | 4.1900%           |
| 2025-06-06 | 4.1900%           |
| 2025-06-09 | 4.1900%           |
| 2025-06-10 | 4.1900%           |
| 2025-06-11 | 4.1900%           |
| 2025-06-12 | 4.1900%           |
| 2025-06-13 | 4.1900%           |
| 2025-06-16 | 4.1900%           |
| 2025-06-17 | 4.1900%           |
| 2025-06-18 | 4.1900%           |
| 2025-06-20 | 4.1900%           |
| 2025-06-23 | 4.1900%           |
| 2025-06-24 | 4.1900%           |
| 2025-06-25 | 4.1900%           |
| 2025-06-26 | 4.1900%           |
| 2025-06-27 | 4.1900%           |
| 2025-06-30 | 4.1900%           |

**Beneficial/Record Owner Categories**
| Category                  | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Non-financial corporation |  | 8.3400%          | 0.0000%              |
| Non-financial corporation |  | 16.5100%         | 0.0000%              |
| Non-financial corporation |  | 72.3400%         | 0.0000%              |

### Class: CC

- **Minimum Initial Investment:** $200000000.00

- **Net Assets of Class:** $44479598.59

- **Number of Shares Outstanding:** 44476888.7800

- **Expense Reimbursement/Waiver:** 32017.86

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2025-06-02 | 1.0000          |
|  |  |
| 2025-06-03 | 1.0000          |
|  |  |
| 2025-06-04 | 1.0000          |
|  |  |
| 2025-06-05 | 1.0000          |
|  |  |
| 2025-06-06 | 1.0000          |
|  |  |
| 2025-06-09 | 1.0000          |
|  |  |
| 2025-06-10 | 1.0000          |
|  |  |
| 2025-06-11 | 1.0000          |
|  |  |
| 2025-06-12 | 1.0000          |
|  |  |
| 2025-06-13 | 1.0000          |
|  |  |
| 2025-06-16 | 1.0000          |
|  |  |
| 2025-06-17 | 1.0000          |
|  |  |
| 2025-06-18 | 1.0000          |
|  |  |
| 2025-06-20 | 1.0000          |
|  |  |
| 2025-06-23 | 1.0000          |
|  |  |
| 2025-06-24 | 1.0000          |
|  |  |
| 2025-06-25 | 1.0000          |
|  |  |
| 2025-06-26 | 1.0000          |
|  |  |
| 2025-06-27 | 1.0000          |
|  |  |
| 2025-06-30 | 1.0001          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2025-06-02 | $102248316.97             | $27800000.00            |
| 2025-06-03 | $12900000.00              | $0.00                   |
| 2025-06-04 | $0.00                     | $12900000.00            |
| 2025-06-06 | $19000000.00              | $0.00                   |
| 2025-06-09 | $18400000.00              | $0.00                   |
| 2025-06-10 | $17000000.00              | $13400000.00            |
| 2025-06-11 | $6000000.00               | $32000000.00            |
| 2025-06-12 | $7000000.00               | $11000000.00            |
| 2025-06-13 | $5000000.00               | $7000000.00             |
| 2025-06-16 | $10000000.00              | $5000000.00             |
| 2025-06-17 | $13500000.00              | $10000000.00            |
| 2025-06-18 | $0.00                     | $13500000.00            |
| 2025-06-26 | $0.00                     | $5000000.00             |
| 2025-06-30 | $0.00                     | $102000000.00           |

**Total Gross Subscriptions (Month):** $211048316.97

**Total Gross Redemptions (Month):** $239600000.00

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2025-06-02 | 4.2200%           |
| 2025-06-03 | 4.2200%           |
| 2025-06-04 | 4.2200%           |
| 2025-06-05 | 4.2100%           |
| 2025-06-06 | 4.2100%           |
| 2025-06-09 | 4.2100%           |
| 2025-06-10 | 4.2100%           |
| 2025-06-11 | 4.2100%           |
| 2025-06-12 | 4.2100%           |
| 2025-06-13 | 4.2100%           |
| 2025-06-16 | 4.2100%           |
| 2025-06-17 | 4.2100%           |
| 2025-06-18 | 4.2100%           |
| 2025-06-20 | 4.2100%           |
| 2025-06-23 | 4.2100%           |
| 2025-06-24 | 4.2100%           |
| 2025-06-25 | 4.2100%           |
| 2025-06-26 | 4.2100%           |
| 2025-06-27 | 4.2100%           |
| 2025-06-30 | 4.2100%           |

**Beneficial/Record Owner Categories**
| Category                  | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Non-financial corporation |  | 5.1600%          | 0.0000%              |
| Non-financial corporation |  | 41.7500%         | 0.0000%              |
| Non-financial corporation |  | 6.2900%          | 0.0000%              |
| Non-financial corporation |  | 38.2000%         | 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):** $1884525755.82
- **C.18.a - Value (excl. sponsor support):** $1884525755.82
- **C.19 - Percentage of Net Assets:** 100.0000%
- **C.17 - Yield as of Reporting Date:** 0.0000%
- **C.11 - Maturity Date (WAM):** 2025-07-01
- **C.12 - Maturity Date (WAL):** 2025-07-01
- **C.13 - Final Legal Maturity Date:** 2025-07-01
- **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:** 2025-07-08

**By:** /s/Christopher Berarducci

**Name of Signing Officer:** Christopher Berarducci

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