# EDGAR Filing Document

**Accession Number:** 0000889512
**File Stem:** 0001193125-25-233286
**Filing Date:** 2025-10
**Character Count:** 21868
**Document Hash:** 58853c919844b647240d0298bc0fc266
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-233286.hdr.sgml**: 20251007

**ACCESSION NUMBER**: 0001193125-25-233286

**CONFORMED SUBMISSION TYPE**: N-MFP3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251007

**DATE AS OF CHANGE**: 20251007

**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:** 251379488

**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 Obligations Money Market Fund (Series ID: S000041891)

| Class ID   | Class Name            | Ticker Symbol   |
|:---|:---|:---|
| C000130074 | Institutional Shares  | LUIXX           |
| C000130075 | Administrative Shares | LAOXX           |
| C000130076 | Investor Shares       | LAIXX           |

# 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):** 2025-09-30

**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 Obligations Money Market Fund

**LEI of Series:** 549300P231U63OH0ZT41

**EDGAR Series Identifier:** S000041891

**Total number of share classes in the series:** 3

**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:** $584339120.99

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

- **Cash:** $0.00

- **Total Other Assets:** $46793.95

- **Total Liabilities:** $2105612.14

- **Net Assets of Series:** $582280302.80

- **Number of Shares Outstanding (Series):** 582264524.7400

- **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 (%)   |
|:---|:---|:---|:---|:---|
| 2025-09-02 | $625692983.82             | $625692983.82              | 99.8700%                  | 99.8700%                   |
| 2025-09-03 | $667723134.52             | $667723134.52              | 99.8600%                  | 99.8600%                   |
| 2025-09-04 | $672525571.81             | $672525571.81              | 99.8600%                  | 99.8600%                   |
| 2025-09-05 | $692765067.25             | $692765067.25              | 99.8500%                  | 99.8500%                   |
| 2025-09-08 | $687987997.34             | $687987997.34              | 99.8500%                  | 99.8500%                   |
| 2025-09-09 | $655261634.29             | $655261634.29              | 99.8400%                  | 99.8400%                   |
| 2025-09-10 | $654700019.47             | $654700019.47              | 99.8400%                  | 99.8400%                   |
| 2025-09-11 | $629669352.83             | $629669352.83              | 99.8300%                  | 99.8300%                   |
| 2025-09-12 | $624221201.84             | $624221201.84              | 99.8100%                  | 99.8100%                   |
| 2025-09-15 | $631928085.30             | $631928085.30              | 99.8200%                  | 99.8200%                   |
| 2025-09-16 | $609668111.64             | $609668111.64              | 99.8100%                  | 99.8100%                   |
| 2025-09-17 | $612059705.91             | $612059705.91              | 99.8100%                  | 99.8100%                   |
| 2025-09-18 | $613579567.36             | $613579567.36              | 99.8000%                  | 99.8000%                   |
| 2025-09-19 | $602535611.10             | $602535611.10              | 99.7800%                  | 99.7800%                   |
| 2025-09-22 | $599009028.06             | $599009028.06              | 99.7900%                  | 99.7900%                   |
| 2025-09-23 | $599018169.79             | $599018169.79              | 99.7800%                  | 99.7800%                   |
| 2025-09-24 | $601701909.20             | $601701909.20              | 99.7800%                  | 99.7800%                   |
| 2025-09-25 | $606921796.59             | $606921796.59              | 99.7800%                  | 99.7800%                   |
| 2025-09-26 | $593205003.17             | $593205003.17              | 99.7600%                  | 99.7600%                   |
| 2025-09-29 | $593996509.41             | $593996509.41              | 99.7700%                  | 99.7700%                   |
| 2025-09-30 | $601348421.21             | $601348421.21              | 99.8100%                  | 99.8100%                   |

### 7-Day Gross Yield
| Date       | 7-Day Gross Yield   |
|:---|:---|
| 2025-09-02 | 4.3300%             |
| 2025-09-03 | 4.3300%             |
| 2025-09-04 | 4.3300%             |
| 2025-09-05 | 4.3300%             |
| 2025-09-08 | 4.3400%             |
| 2025-09-09 | 4.3400%             |
| 2025-09-10 | 4.3400%             |
| 2025-09-11 | 4.3300%             |
| 2025-09-12 | 4.3200%             |
| 2025-09-15 | 4.3200%             |
| 2025-09-16 | 4.3100%             |
| 2025-09-17 | 4.3100%             |
| 2025-09-18 | 4.2900%             |
| 2025-09-19 | 4.2200%             |
| 2025-09-22 | 4.1900%             |
| 2025-09-23 | 4.1700%             |
| 2025-09-24 | 4.1500%             |
| 2025-09-25 | 4.1600%             |
| 2025-09-26 | 4.1600%             |
| 2025-09-29 | 4.1600%             |
| 2025-09-30 | 4.1600%             |

### Daily Net Asset Value per Share (Series)
| Date       | Net Asset Value per Share   |
|:---|:---|
| 2025-09-02 | 1.0000                      |
|  |  |
| 2025-09-03 | 1.0000                      |
|  |  |
| 2025-09-04 | 1.0000                      |
|  |  |
| 2025-09-05 | 1.0000                      |
|  |  |
| 2025-09-08 | 1.0000                      |
|  |  |
| 2025-09-09 | 1.0000                      |
|  |  |
| 2025-09-10 | 1.0000                      |
|  |  |
| 2025-09-11 | 1.0000                      |
|  |  |
| 2025-09-12 | 1.0000                      |
|  |  |
| 2025-09-15 | 1.0000                      |
|  |  |
| 2025-09-16 | 1.0000                      |
|  |  |
| 2025-09-17 | 1.0000                      |
|  |  |
| 2025-09-18 | 1.0000                      |
|  |  |
| 2025-09-19 | 1.0000                      |
|  |  |
| 2025-09-22 | 1.0000                      |
|  |  |
| 2025-09-23 | 1.0000                      |
|  |  |
| 2025-09-24 | 1.0000                      |
|  |  |
| 2025-09-25 | 1.0000                      |
|  |  |
| 2025-09-26 | 1.0000                      |
|  |  |
| 2025-09-29 | 1.0000                      |
|  |  |
| 2025-09-30 | 1.0000                      |
|  |  |

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

### Class: 0L

- **Minimum Initial Investment:** $1000000.00

- **Net Assets of Class:** $123118334.61

- **Number of Shares Outstanding:** 123113103.8200

- **Expense Reimbursement/Waiver:** 17931.82

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2025-09-02 | 1.0000          |
|  |  |
| 2025-09-03 | 1.0000          |
|  |  |
| 2025-09-04 | 1.0000          |
|  |  |
| 2025-09-05 | 1.0000          |
|  |  |
| 2025-09-08 | 1.0000          |
|  |  |
| 2025-09-09 | 1.0000          |
|  |  |
| 2025-09-10 | 1.0000          |
|  |  |
| 2025-09-11 | 1.0000          |
|  |  |
| 2025-09-12 | 1.0000          |
|  |  |
| 2025-09-15 | 1.0000          |
|  |  |
| 2025-09-16 | 1.0000          |
|  |  |
| 2025-09-17 | 1.0000          |
|  |  |
| 2025-09-18 | 1.0000          |
|  |  |
| 2025-09-19 | 1.0000          |
|  |  |
| 2025-09-22 | 1.0000          |
|  |  |
| 2025-09-23 | 1.0000          |
|  |  |
| 2025-09-24 | 1.0000          |
|  |  |
| 2025-09-25 | 1.0000          |
|  |  |
| 2025-09-26 | 1.0000          |
|  |  |
| 2025-09-29 | 1.0000          |
|  |  |
| 2025-09-30 | 1.0000          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2025-09-02 | $495652.13                | $1971132.80             |
| 2025-09-03 | $6928661.98               | $147440.95              |
| 2025-09-04 | $14084595.11              | $512193.54              |
| 2025-09-05 | $16130.25                 | $117018.32              |
| 2025-09-08 | $208134.34                | $8377345.72             |
| 2025-09-09 | $188941.12                | $690269.53              |
| 2025-09-10 | $75596.91                 | $3934499.84             |
| 2025-09-11 | $109832.00                | $153459.62              |
| 2025-09-12 | $8926101.54               | $16882540.02            |
| 2025-09-15 | $969232.20                | $1201639.23             |
| 2025-09-16 | $63923.95                 | $322863.68              |
| 2025-09-17 | $97008.58                 | $781129.05              |
| 2025-09-18 | $65071.05                 | $2719615.43             |
| 2025-09-19 | $1247118.18               | $14658623.20            |
| 2025-09-22 | $11718830.13              | $9615605.73             |
| 2025-09-23 | $239346.68                | $1457890.39             |
| 2025-09-24 | $816928.37                | $198013.68              |
| 2025-09-25 | $73802.77                 | $6884.55                |
| 2025-09-26 | $1237962.58               | $50857.02               |
| 2025-09-29 | $381044.92                | $714330.46              |
| 2025-09-30 | $3699302.41               | $3020.86                |

**Total Gross Subscriptions (Month):** $51643217.20

**Total Gross Redemptions (Month):** $64516373.62

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2025-09-02 | 4.1500%           |
| 2025-09-03 | 4.1500%           |
| 2025-09-04 | 4.1500%           |
| 2025-09-05 | 4.1500%           |
| 2025-09-08 | 4.1600%           |
| 2025-09-09 | 4.1600%           |
| 2025-09-10 | 4.1600%           |
| 2025-09-11 | 4.1500%           |
| 2025-09-12 | 4.1400%           |
| 2025-09-15 | 4.1400%           |
| 2025-09-16 | 4.1300%           |
| 2025-09-17 | 4.1300%           |
| 2025-09-18 | 4.1100%           |
| 2025-09-19 | 4.0400%           |
| 2025-09-22 | 4.0100%           |
| 2025-09-23 | 3.9900%           |
| 2025-09-24 | 3.9700%           |
| 2025-09-25 | 3.9800%           |
| 2025-09-26 | 3.9800%           |
| 2025-09-29 | 3.9800%           |
| 2025-09-30 | 3.9800%           |

**Beneficial/Record Owner Categories**
| Category                  | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Broker-dealer             |  | 71.0000%         | 0.0000%              |
| Non-financial corporation |  | 5.5100%          | 0.0000%              |
| Non-financial corporation |  | 22.3300%         | 0.0000%              |

### Class: AD

- **Minimum Initial Investment:** $1000000.00

- **Net Assets of Class:** $458612526.12

- **Number of Shares Outstanding:** 458602087.9500

- **Expense Reimbursement/Waiver:** 55699.04

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2025-09-02 | 1.0000          |
|  |  |
| 2025-09-03 | 1.0000          |
|  |  |
| 2025-09-04 | 1.0000          |
|  |  |
| 2025-09-05 | 1.0000          |
|  |  |
| 2025-09-08 | 1.0000          |
|  |  |
| 2025-09-09 | 1.0000          |
|  |  |
| 2025-09-10 | 1.0000          |
|  |  |
| 2025-09-11 | 1.0000          |
|  |  |
| 2025-09-12 | 1.0000          |
|  |  |
| 2025-09-15 | 1.0000          |
|  |  |
| 2025-09-16 | 1.0000          |
|  |  |
| 2025-09-17 | 1.0000          |
|  |  |
| 2025-09-18 | 1.0000          |
|  |  |
| 2025-09-19 | 1.0000          |
|  |  |
| 2025-09-22 | 1.0000          |
|  |  |
| 2025-09-23 | 1.0000          |
|  |  |
| 2025-09-24 | 1.0000          |
|  |  |
| 2025-09-25 | 1.0000          |
|  |  |
| 2025-09-26 | 1.0000          |
|  |  |
| 2025-09-29 | 1.0000          |
|  |  |
| 2025-09-30 | 1.0000          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2025-09-02 | $4223619.76               | $0.00                   |
| 2025-09-03 | $15182863.89              | $0.00                   |
| 2025-09-04 | $0.00                     | $3635886.40             |
| 2025-09-05 | $8314570.12               | $0.00                   |
| 2025-09-08 | $0.00                     | $1586036.79             |
| 2025-09-09 | $0.00                     | $12441137.61            |
| 2025-09-10 | $0.00                     | $55075.51               |
| 2025-09-11 | $0.00                     | $15232644.64            |
| 2025-09-12 | $2413165.76               | $0.00                   |
| 2025-09-15 | $7814931.33               | $0.00                   |
| 2025-09-16 | $0.00                     | $16723685.29            |
| 2025-09-17 | $3025481.23               | $0.00                   |
| 2025-09-18 | $4122196.11               | $0.00                   |
| 2025-09-19 | $2275808.89               | $0.00                   |
| 2025-09-22 | $0.00                     | $5691053.25             |
| 2025-09-23 | $1180034.23               | $0.00                   |
| 2025-09-24 | $0.00                     | $7852125.98             |
| 2025-09-25 | $0.00                     | $9826666.41             |
| 2025-09-26 | $0.00                     | $14989655.85            |
| 2025-09-29 | $1030735.80               | $0.00                   |
| 2025-09-30 | $15238370.41              | $0.00                   |

**Total Gross Subscriptions (Month):** $64821777.53

**Total Gross Redemptions (Month):** $88033967.73

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2025-09-02 | 3.9500%           |
| 2025-09-03 | 3.9500%           |
| 2025-09-04 | 3.9500%           |
| 2025-09-05 | 3.9500%           |
| 2025-09-08 | 3.9600%           |
| 2025-09-09 | 3.9600%           |
| 2025-09-10 | 3.9500%           |
| 2025-09-11 | 3.9500%           |
| 2025-09-12 | 3.9300%           |
| 2025-09-15 | 3.9300%           |
| 2025-09-16 | 3.9300%           |
| 2025-09-17 | 3.9200%           |
| 2025-09-18 | 3.9000%           |
| 2025-09-19 | 3.8300%           |
| 2025-09-22 | 3.8100%           |
| 2025-09-23 | 3.7900%           |
| 2025-09-24 | 3.7700%           |
| 2025-09-25 | 3.7700%           |
| 2025-09-26 | 3.7700%           |
| 2025-09-29 | 3.7700%           |
| 2025-09-30 | 3.7800%           |

**Beneficial/Record Owner Categories**
| Category                                            | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Depository institution or other banking institution |  | 100.0000%        | 0.0000%              |

### Class: 0I

- **Minimum Initial Investment:** $1000000.00

- **Net Assets of Class:** $549442.07

- **Number of Shares Outstanding:** 549332.9700

- **Expense Reimbursement/Waiver:** 2316.19

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2025-09-02 | 1.0002          |
|  |  |
| 2025-09-03 | 1.0002          |
|  |  |
| 2025-09-04 | 1.0002          |
|  |  |
| 2025-09-05 | 1.0002          |
|  |  |
| 2025-09-08 | 1.0002          |
|  |  |
| 2025-09-09 | 1.0002          |
|  |  |
| 2025-09-10 | 1.0002          |
|  |  |
| 2025-09-11 | 1.0002          |
|  |  |
| 2025-09-12 | 1.0002          |
|  |  |
| 2025-09-15 | 1.0002          |
|  |  |
| 2025-09-16 | 1.0002          |
|  |  |
| 2025-09-17 | 1.0002          |
|  |  |
| 2025-09-18 | 1.0002          |
|  |  |
| 2025-09-19 | 1.0002          |
|  |  |
| 2025-09-22 | 1.0002          |
|  |  |
| 2025-09-23 | 1.0002          |
|  |  |
| 2025-09-24 | 1.0002          |
|  |  |
| 2025-09-25 | 1.0002          |
|  |  |
| 2025-09-26 | 1.0002          |
|  |  |
| 2025-09-29 | 1.0002          |
|  |  |
| 2025-09-30 | 1.0002          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2025-09-02 | $1838.73                  | $620.96                 |
| 2025-09-03 | $0.00                     | $0.00                   |
| 2025-09-04 | $0.00                     | $0.00                   |
| 2025-09-05 | $0.00                     | $0.00                   |
| 2025-09-08 | $0.00                     | $0.00                   |
| 2025-09-09 | $0.00                     | $0.00                   |
| 2025-09-10 | $0.00                     | $0.00                   |
| 2025-09-11 | $0.00                     | $0.00                   |
| 2025-09-12 | $0.00                     | $0.00                   |
| 2025-09-15 | $0.00                     | $0.00                   |
| 2025-09-16 | $0.00                     | $0.00                   |
| 2025-09-17 | $0.00                     | $0.00                   |
| 2025-09-18 | $0.00                     | $0.00                   |
| 2025-09-19 | $0.00                     | $0.00                   |
| 2025-09-22 | $0.00                     | $0.00                   |
| 2025-09-23 | $0.00                     | $0.00                   |
| 2025-09-24 | $0.00                     | $0.00                   |
| 2025-09-25 | $0.00                     | $0.00                   |
| 2025-09-26 | $0.00                     | $0.00                   |
| 2025-09-29 | $0.00                     | $0.00                   |
| 2025-09-30 | $0.00                     | $0.00                   |

**Total Gross Subscriptions (Month):** $1838.73

**Total Gross Redemptions (Month):** $620.96

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2025-09-02 | 4.1000%           |
| 2025-09-03 | 4.1000%           |
| 2025-09-04 | 4.1000%           |
| 2025-09-05 | 4.1000%           |
| 2025-09-08 | 4.1100%           |
| 2025-09-09 | 4.1200%           |
| 2025-09-10 | 4.1100%           |
| 2025-09-11 | 4.1100%           |
| 2025-09-12 | 4.0900%           |
| 2025-09-15 | 4.0900%           |
| 2025-09-16 | 4.0800%           |
| 2025-09-17 | 4.0800%           |
| 2025-09-18 | 4.0600%           |
| 2025-09-19 | 3.9900%           |
| 2025-09-22 | 3.9600%           |
| 2025-09-23 | 3.9400%           |
| 2025-09-24 | 3.9200%           |
| 2025-09-25 | 3.9300%           |
| 2025-09-26 | 3.9300%           |
| 2025-09-29 | 3.9300%           |
| 2025-09-30 | 3.9300%           |

**Beneficial/Record Owner Categories**
| Category                                            | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Broker-dealer                                       |  | 81.8300%         | 0.0000%              |
| Depository institution or other banking institution |  | 18.1500%         | 0.0000%              |

## Part C: Schedule of Portfolio Securities

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

- **C.1 - Title:** U.S. Treasury Obligations Portfolio
- **C.6 - Investment Category:** Investment Company
- **Identifiers:** C.3 - CUSIP: NA, C.5 - Other ID: LMUSTREASURYOBLI
- **C.18 - Value (incl. sponsor support):** $584339120.99
- **C.18.a - Value (excl. sponsor support):** $584339120.99
- **C.19 - Percentage of Net Assets:** 100.0000%
- **C.17 - Yield as of Reporting Date:** 0.0000%
- **C.11 - Maturity Date (WAM):** 2025-10-01
- **C.12 - Maturity Date (WAL):** 2025-10-01
- **C.13 - Final Legal Maturity Date:** 2025-10-01
- **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:** 2025-10-07

**By:** /s/Christopher Berarducci

**Name of Signing Officer:** Christopher Berarducci

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