# EDGAR Filing Document

**Accession Number:** 0000889512
**File Stem:** 0001193125-26-096180
**Filing Date:** 2026-3
**Character Count:** 20061
**Document Hash:** 43f7fde73c7defd3597164009b5b54c0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-096180.hdr.sgml**: 20260306

**ACCESSION NUMBER**: 0001193125-26-096180

**CONFORMED SUBMISSION TYPE**: N-MFP3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260228

**FILED AS OF DATE**: 20260306

**DATE AS OF CHANGE**: 20260306

**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:** 26730245

**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           |
| C000266548 | Digital Institutional Shares | DIGXX           |

# 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):** 2026-02-28

**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:** 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:** $7471199804.64

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

- **Cash:** $0.00

- **Total Other Assets:** $102564.99

- **Total Liabilities:** $20533211.09

- **Net Assets of Series:** $7450769158.54

- **Number of Shares Outstanding (Series):** 7451122961.2100

- **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 (%)   |
|:---|:---|:---|:---|:---|
| 2026-02-02 | $19221182059.06           | $19221182059.06            | 99.9300%                  | 99.9300%                   |
| 2026-02-03 | $17166318646.68           | $17166318646.68            | 99.9200%                  | 99.9200%                   |
| 2026-02-04 | $17214205755.55           | $17214205755.55            | 99.9100%                  | 99.9100%                   |
| 2026-02-05 | $17834022462.95           | $17834022462.95            | 99.9300%                  | 99.9300%                   |
| 2026-02-06 | $17797592539.68           | $17797592539.68            | 99.9100%                  | 99.9100%                   |
| 2026-02-09 | $18679048837.41           | $18679048837.41            | 99.9100%                  | 99.9100%                   |
| 2026-02-10 | $17608567705.10           | $17608567705.10            | 99.9000%                  | 99.9000%                   |
| 2026-02-11 | $17830825276.06           | $17830825276.06            | 99.8900%                  | 99.8900%                   |
| 2026-02-12 | $18473811400.32           | $18473811400.32            | 99.8900%                  | 99.8900%                   |
| 2026-02-13 | $17343091852.72           | $17343091852.72            | 99.8700%                  | 99.8700%                   |
| 2026-02-17 | $17288952177.93           | $17288952177.93            | 99.8700%                  | 99.8700%                   |
| 2026-02-18 | $17139036074.06           | $17139036074.06            | 99.8700%                  | 99.8700%                   |
| 2026-02-19 | $18025552493.65           | $18025552493.65            | 99.8700%                  | 99.8700%                   |
| 2026-02-20 | $18209008784.86           | $18209008784.86            | 99.8600%                  | 99.8600%                   |
| 2026-02-23 | $17933604132.40           | $17933604132.40            | 99.8600%                  | 99.8600%                   |
| 2026-02-24 | $17113025855.67           | $17113025855.67            | 99.8500%                  | 99.8500%                   |
| 2026-02-25 | $17289206815.16           | $17289206815.16            | 99.8400%                  | 99.8400%                   |
| 2026-02-26 | $17778928582.79           | $17778928582.79            | 99.8500%                  | 99.8500%                   |
| 2026-02-27 | $17363934243.56           | $17363934243.56            | 99.8400%                  | 99.8400%                   |

### 7-Day Gross Yield
| Date       | 7-Day Gross Yield   |
|:---|:---|
| 2026-02-02 | 3.7200%             |
| 2026-02-03 | 3.7200%             |
| 2026-02-04 | 3.7200%             |
| 2026-02-05 | 3.7200%             |
| 2026-02-06 | 3.7200%             |
| 2026-02-09 | 3.7200%             |
| 2026-02-10 | 3.7200%             |
| 2026-02-11 | 3.7200%             |
| 2026-02-12 | 3.7200%             |
| 2026-02-13 | 3.7200%             |
| 2026-02-17 | 3.7200%             |
| 2026-02-18 | 3.7200%             |
| 2026-02-19 | 3.7200%             |
| 2026-02-20 | 3.7200%             |
| 2026-02-23 | 3.7200%             |
| 2026-02-24 | 3.7200%             |
| 2026-02-25 | 3.7200%             |
| 2026-02-26 | 3.7200%             |
| 2026-02-27 | 3.7200%             |

### Daily Net Asset Value per Share (Series)
| Date       | Net Asset Value per Share   |
|:---|:---|
| 2026-02-02 | 1.0000                      |
|  |  |
| 2026-02-03 | 1.0000                      |
|  |  |
| 2026-02-04 | 1.0000                      |
|  |  |
| 2026-02-05 | 1.0000                      |
|  |  |
| 2026-02-06 | 1.0000                      |
|  |  |
| 2026-02-09 | 1.0000                      |
|  |  |
| 2026-02-10 | 1.0000                      |
|  |  |
| 2026-02-11 | 1.0000                      |
|  |  |
| 2026-02-12 | 1.0000                      |
|  |  |
| 2026-02-13 | 0.9999                      |
|  |  |
| 2026-02-17 | 0.9999                      |
|  |  |
| 2026-02-18 | 0.9999                      |
|  |  |
| 2026-02-19 | 1.0000                      |
|  |  |
| 2026-02-20 | 1.0000                      |
|  |  |
| 2026-02-23 | 1.0000                      |
|  |  |
| 2026-02-24 | 0.9999                      |
|  |  |
| 2026-02-25 | 0.9999                      |
|  |  |
| 2026-02-26 | 1.0000                      |
|  |  |
| 2026-02-27 | 1.0000                      |
|  |  |

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

### Class: 0L

- **Minimum Initial Investment:** $1000000.00

- **Net Assets of Class:** $4726382822.10

- **Number of Shares Outstanding:** 4726619307.2700

- **Expense Reimbursement/Waiver:** 518239.99

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2026-02-02 | 0.9999          |
|  |  |
| 2026-02-03 | 0.9999          |
|  |  |
| 2026-02-04 | 0.9999          |
|  |  |
| 2026-02-05 | 0.9999          |
|  |  |
| 2026-02-06 | 0.9999          |
|  |  |
| 2026-02-09 | 1.0000          |
|  |  |
| 2026-02-10 | 0.9999          |
|  |  |
| 2026-02-11 | 0.9999          |
|  |  |
| 2026-02-12 | 1.0000          |
|  |  |
| 2026-02-13 | 1.0000          |
|  |  |
| 2026-02-17 | 0.9999          |
|  |  |
| 2026-02-18 | 0.9999          |
|  |  |
| 2026-02-19 | 0.9999          |
|  |  |
| 2026-02-20 | 0.9999          |
|  |  |
| 2026-02-23 | 0.9999          |
|  |  |
| 2026-02-24 | 0.9999          |
|  |  |
| 2026-02-25 | 0.9999          |
|  |  |
| 2026-02-26 | 1.0000          |
|  |  |
| 2026-02-27 | 1.0000          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2026-02-02 | $41520658.64              | $1091464390.16          |
| 2026-02-03 | $13654968.44              | $28627302.82            |
| 2026-02-04 | $8005458.76               | $42148891.95            |
| 2026-02-05 | $156643178.89             | $29634243.76            |
| 2026-02-06 | $117166247.89             | $20561250.38            |
| 2026-02-09 | $62082002.60              | $22129578.03            |
| 2026-02-10 | $17867478.38              | $146067500.32           |
| 2026-02-11 | $168056293.04             | $78164629.85            |
| 2026-02-12 | $666004794.87             | $53033872.82            |
| 2026-02-13 | $48281330.43              | $449258452.55           |
| 2026-02-17 | $47059266.59              | $137672537.62           |
| 2026-02-18 | $43906300.74              | $231290991.06           |
| 2026-02-19 | $68646790.39              | $29803126.04            |
| 2026-02-20 | $71455658.28              | $9023774.15             |
| 2026-02-23 | $35214015.42              | $35397334.88            |
| 2026-02-24 | $14678111.44              | $55497946.98            |
| 2026-02-25 | $32618567.82              | $42278961.13            |
| 2026-02-26 | $174257219.60             | $15686459.85            |
| 2026-02-27 | $125681816.59             | $122436457.13           |

**Total Gross Subscriptions (Month):** $1912800158.81

**Total Gross Redemptions (Month):** $2640177701.48

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2026-02-02 | 3.5400%           |
| 2026-02-03 | 3.5400%           |
| 2026-02-04 | 3.5400%           |
| 2026-02-05 | 3.5400%           |
| 2026-02-06 | 3.5400%           |
| 2026-02-09 | 3.5400%           |
| 2026-02-10 | 3.5400%           |
| 2026-02-11 | 3.5400%           |
| 2026-02-12 | 3.5400%           |
| 2026-02-13 | 3.5400%           |
| 2026-02-17 | 3.5400%           |
| 2026-02-18 | 3.5400%           |
| 2026-02-19 | 3.5400%           |
| 2026-02-20 | 3.5400%           |
| 2026-02-23 | 3.5400%           |
| 2026-02-24 | 3.5400%           |
| 2026-02-25 | 3.5400%           |
| 2026-02-26 | 3.5400%           |
| 2026-02-27 | 3.5400%           |

**Beneficial/Record Owner Categories**
| Category      | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Broker-dealer |  | 35.5400%         | 0.0000%              |
| Broker-dealer |  | 31.4800%         | 0.0000%              |

### Class: 0I

- **Minimum Initial Investment:** $1000000.00

- **Net Assets of Class:** $2724286336.11

- **Number of Shares Outstanding:** 2724403653.9400

- **Expense Reimbursement/Waiver:** 393360.78

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2026-02-02 | 1.0000          |
|  |  |
| 2026-02-03 | 1.0000          |
|  |  |
| 2026-02-04 | 1.0000          |
|  |  |
| 2026-02-05 | 1.0000          |
|  |  |
| 2026-02-06 | 1.0000          |
|  |  |
| 2026-02-09 | 1.0000          |
|  |  |
| 2026-02-10 | 1.0000          |
|  |  |
| 2026-02-11 | 1.0000          |
|  |  |
| 2026-02-12 | 0.9999          |
|  |  |
| 2026-02-13 | 0.9999          |
|  |  |
| 2026-02-17 | 0.9999          |
|  |  |
| 2026-02-18 | 1.0000          |
|  |  |
| 2026-02-19 | 1.0000          |
|  |  |
| 2026-02-20 | 1.0000          |
|  |  |
| 2026-02-23 | 1.0000          |
|  |  |
| 2026-02-24 | 1.0000          |
|  |  |
| 2026-02-25 | 1.0000          |
|  |  |
| 2026-02-26 | 1.0000          |
|  |  |
| 2026-02-27 | 1.0000          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2026-02-02 | $54978066.94              | $620592.94              |
| 2026-02-03 | $0.00                     | $139557067.92           |
| 2026-02-04 | $282479.94                | $0.00                   |
| 2026-02-05 | $0.00                     | $106883611.38           |
| 2026-02-06 | $0.00                     | $179616971.14           |
| 2026-02-09 | $476180202.15             | $16000.00               |
| 2026-02-10 | $0.00                     | $527928006.80           |
| 2026-02-11 | $38121251.80              | $0.00                   |
| 2026-02-12 | $0.00                     | $399214729.42           |
| 2026-02-13 | $0.00                     | $3836030.95             |
| 2026-02-17 | $65177516.28              | $0.00                   |
| 2026-02-18 | $40302990.18              | $0.00                   |
| 2026-02-19 | $234938665.58             | $0.00                   |
| 2026-02-20 | $48285009.82              | $2234.75                |
| 2026-02-23 | $0.00                     | $112842885.99           |
| 2026-02-24 | $0.00                     | $78256070.91            |
| 2026-02-25 | $44192018.14              | $0.00                   |
| 2026-02-26 | $115147744.57             | $0.00                   |
| 2026-02-27 | $109273464.18             | $0.00                   |

**Total Gross Subscriptions (Month):** $1226879409.58

**Total Gross Redemptions (Month):** $1548774202.20

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2026-02-02 | 3.4900%           |
| 2026-02-03 | 3.4900%           |
| 2026-02-04 | 3.4900%           |
| 2026-02-05 | 3.4900%           |
| 2026-02-06 | 3.4900%           |
| 2026-02-09 | 3.4900%           |
| 2026-02-10 | 3.4900%           |
| 2026-02-11 | 3.4900%           |
| 2026-02-12 | 3.4900%           |
| 2026-02-13 | 3.4900%           |
| 2026-02-17 | 3.4900%           |
| 2026-02-18 | 3.4900%           |
| 2026-02-19 | 3.4900%           |
| 2026-02-20 | 3.4900%           |
| 2026-02-23 | 3.4900%           |
| 2026-02-24 | 3.4900%           |
| 2026-02-25 | 3.4900%           |
| 2026-02-26 | 3.4900%           |
| 2026-02-27 | 3.4900%           |

**Beneficial/Record Owner Categories**
| Category                                            | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Depository institution or other banking institution |  | 99.6600%         | 0.0000%              |

### Class: DL

- **Minimum Initial Investment:** $1000000.00

- **Net Assets of Class:** $100000.33

- **Number of Shares Outstanding:** 100000.0000

- **Expense Reimbursement/Waiver:** 2074.38

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2026-02-02 | 1.0000          |
|  |  |
| 2026-02-03 | 1.0000          |
|  |  |
| 2026-02-04 | 1.0000          |
|  |  |
| 2026-02-05 | 1.0000          |
|  |  |
| 2026-02-06 | 1.0000          |
|  |  |
| 2026-02-09 | 1.0000          |
|  |  |
| 2026-02-10 | 1.0000          |
|  |  |
| 2026-02-11 | 1.0000          |
|  |  |
| 2026-02-12 | 1.0000          |
|  |  |
| 2026-02-13 | 1.0000          |
|  |  |
| 2026-02-17 | 1.0000          |
|  |  |
| 2026-02-18 | 1.0000          |
|  |  |
| 2026-02-19 | 1.0000          |
|  |  |
| 2026-02-20 | 1.0000          |
|  |  |
| 2026-02-23 | 1.0000          |
|  |  |
| 2026-02-24 | 1.0000          |
|  |  |
| 2026-02-25 | 1.0000          |
|  |  |
| 2026-02-26 | 1.0000          |
|  |  |
| 2026-02-27 | 1.0000          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2026-02-02 | $0.00                     | $0.00                   |
| 2026-02-03 | $0.00                     | $0.00                   |
| 2026-02-04 | $0.00                     | $0.00                   |
| 2026-02-05 | $0.00                     | $0.00                   |
| 2026-02-06 | $0.00                     | $0.00                   |
| 2026-02-09 | $0.00                     | $0.00                   |
| 2026-02-10 | $0.00                     | $0.00                   |
| 2026-02-11 | $0.00                     | $0.00                   |
| 2026-02-12 | $0.00                     | $0.00                   |
| 2026-02-13 | $0.00                     | $0.00                   |
| 2026-02-17 | $0.00                     | $0.00                   |
| 2026-02-18 | $0.00                     | $0.00                   |
| 2026-02-19 | $0.00                     | $0.00                   |
| 2026-02-20 | $0.00                     | $0.00                   |
| 2026-02-23 | $0.00                     | $0.00                   |
| 2026-02-24 | $0.00                     | $0.00                   |
| 2026-02-25 | $0.00                     | $0.00                   |
| 2026-02-26 | $0.00                     | $0.00                   |
| 2026-02-27 | $0.00                     | $0.00                   |

**Total Gross Subscriptions (Month):** $0.00

**Total Gross Redemptions (Month):** $0.00

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2026-02-02 | 3.5400%           |
| 2026-02-03 | 3.5400%           |
| 2026-02-04 | 3.5400%           |
| 2026-02-05 | 3.5400%           |
| 2026-02-06 | 3.5400%           |
| 2026-02-09 | 3.5500%           |
| 2026-02-10 | 3.5500%           |
| 2026-02-11 | 3.5500%           |
| 2026-02-12 | 3.5500%           |
| 2026-02-13 | 3.5400%           |
| 2026-02-17 | 3.5400%           |
| 2026-02-18 | 3.5400%           |
| 2026-02-19 | 3.5400%           |
| 2026-02-20 | 3.5500%           |
| 2026-02-23 | 3.5500%           |
| 2026-02-24 | 3.5500%           |
| 2026-02-25 | 3.5500%           |
| 2026-02-26 | 3.5500%           |
| 2026-02-27 | 3.5400%           |

## 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):** $7471199804.64
- **C.18.a - Value (excl. sponsor support):** $7471199804.64
- **C.19 - Percentage of Net Assets:** 100.0000%
- **C.17 - Yield as of Reporting Date:** 0.0000%
- **C.11 - Maturity Date (WAM):** 2026-03-02
- **C.12 - Maturity Date (WAL):** 2026-03-02
- **C.13 - Final Legal Maturity Date:** 2026-03-02
- **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:** 2026-03-06

**By:** /s/Christopher Berarducci

**Name of Signing Officer:** Christopher Berarducci

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