# EDGAR Filing Document

**Accession Number:** 0000893818
**File Stem:** 0001145549-25-057915
**Filing Date:** 2025-9
**Character Count:** 13804
**Document Hash:** a799e25c89904760699a84fb3b940853
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001145549-25-057915.hdr.sgml**: 20250908

**ACCESSION NUMBER**: 0001145549-25-057915

**CONFORMED SUBMISSION TYPE**: N-MFP3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250831

**FILED AS OF DATE**: 20250908

**DATE AS OF CHANGE**: 20250908

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BlackRock Funds III
- **CENTRAL INDEX KEY:** 0000893818

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** N-MFP3
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-07332
- **FILM NUMBER:** 251298908

**BUSINESS ADDRESS:**
- **STREET 1:** 400 HOWARD STREET
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94105
- **BUSINESS PHONE:** 8006439691

**MAIL ADDRESS:**
- **STREET 1:** 400 HOWARD STREET
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94105

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BARCLAYS GLOBAL INVESTORS FUNDS
- **DATE OF NAME CHANGE:** 20060201

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BARCLAYS GLOBAL INVESTORS FUNDS INC
- **DATE OF NAME CHANGE:** 19990804

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MASTERWORKS FUNDS INC
- **DATE OF NAME CHANGE:** 19960607

## Series and Classes Contracts Data

### BlackRock Cash Funds: Institutional (Series ID: S000004275)

| Class ID   | Class Name       | Ticker Symbol   |
|:---|:---|:---|
| C000074119 | SL Agency Shares |  |

# Form N-MFP3: Monthly Schedule of Portfolio Holdings

## N-MFP: Filer Information
**Submission Type:** N-MFP3
**CIK:** 0000893818

### General Information

**Report for (YYYY-MM-DD):** 2025-08-31

**Registrant Full Name:** BlackRock Funds III

**CIK Number of Registrant:** 0000893818

**LEI of Registrant:** 5493008LW2651I1QB503

**Name of Series:** BlackRock Cash Funds: Institutional

**LEI of Series:** 549300JDHS1T46VWOG19

**EDGAR Series Identifier:** S000004275

**Total number of share classes in the series:** 1

**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            | BlackRock Fund Advisors                                   | 801-22609         |
| Independent Public Accountant | PricewaterhouseCoopers<br>City: Philadelphia<br>State: PA |  |
| Administrator                 | BlackRock Advisors, LLC                                   |  |
| Transfer Agent                | State Street Bank and Trust Company<br>CIK: 0000839287    | 085-05003         |

### Fund Characteristics & Assets

- **Securities Act File Number:** 033-54126

- **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:** Prime

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

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

- **WAM:** 1 days

- **WAL:** 1 days

- **Total Value of Portfolio Securities:** $83965677159.67

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

- **Cash:** $0.00

- **Total Other Assets:** $992.07

- **Total Liabilities:** $324953831.00

- **Net Assets of Series:** $83640724320.74

- **Number of Shares Outstanding (Series):** 83602715700.3810

- **Does the fund seek to maintain a stable price per share?:** No

- **Stable Price Per Share:** $0.00

- **Is cash management vehicle an affiliated fund?:** Yes

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

### Daily & Weekly Liquid Assets
| Date       | Daily Liquid Assets ($)   | Weekly Liquid Assets ($)   | Daily Liquid Assets (%)   | Weekly Liquid Assets (%)   |
|:---|:---|:---|:---|:---|
| 2025-08-01 | $34073847698.77           | $44413247317.26            | 40.3500%                  | 52.6000%                   |
| 2025-08-04 | $36546378279.59           | $44403307902.87            | 43.3400%                  | 52.6500%                   |
| 2025-08-05 | $36509692274.94           | $45488298853.17            | 42.6700%                  | 53.1700%                   |
| 2025-08-06 | $33892940486.14           | $43769144340.28            | 40.2500%                  | 51.9700%                   |
| 2025-08-07 | $35068196014.57           | $44102597034.22            | 41.5400%                  | 52.2400%                   |
| 2025-08-08 | $34080009622.00           | $44032282016.04            | 40.3700%                  | 52.1500%                   |
| 2025-08-11 | $36594612747.74           | $44188849226.18            | 43.2400%                  | 52.2200%                   |
| 2025-08-12 | $34154722377.33           | $43398699934.79            | 40.8500%                  | 51.9100%                   |
| 2025-08-13 | $31433437281.48           | $42571089318.94            | 38.0100%                  | 51.4800%                   |
| 2025-08-14 | $33828696640.33           | $44433744330.98            | 40.2500%                  | 52.8700%                   |
| 2025-08-15 | $33018615211.71           | $43450412489.66            | 39.8100%                  | 52.3900%                   |
| 2025-08-18 | $34590147929.19           | $42646494128.12            | 42.1300%                  | 51.9500%                   |
| 2025-08-19 | $33723630507.75           | $42699328960.08            | 40.9300%                  | 51.8200%                   |
| 2025-08-20 | $30963788137.66           | $41350741934.79            | 38.0400%                  | 50.8000%                   |
| 2025-08-21 | $31777995266.10           | $42498847545.80            | 38.7300%                  | 51.8000%                   |
| 2025-08-22 | $30910363758.68           | $41958329856.57            | 37.9200%                  | 51.4700%                   |
| 2025-08-25 | $36213890505.20           | $44627210896.15            | 43.2600%                  | 53.3100%                   |
| 2025-08-26 | $36292905768.59           | $45494965858.35            | 43.0600%                  | 53.9800%                   |
| 2025-08-27 | $35141711798.38           | $46164446787.19            | 41.5100%                  | 54.5300%                   |
| 2025-08-28 | $35565803280.83           | $45982798744.86            | 41.8600%                  | 54.1300%                   |
| 2025-08-29 | $36209242899.56           | $45176712623.60            | 42.8300%                  | 53.4400%                   |

### 7-Day Gross Yield
| Date       | 7-Day Gross Yield   |
|:---|:---|
| 2025-08-01 | 4.5400%             |
| 2025-08-04 | 4.5300%             |
| 2025-08-05 | 4.5300%             |
| 2025-08-06 | 4.5200%             |
| 2025-08-07 | 4.5200%             |
| 2025-08-08 | 4.5200%             |
| 2025-08-11 | 4.5200%             |
| 2025-08-12 | 4.5200%             |
| 2025-08-13 | 4.5300%             |
| 2025-08-14 | 4.5300%             |
| 2025-08-15 | 4.5200%             |
| 2025-08-18 | 4.5300%             |
| 2025-08-19 | 4.5200%             |
| 2025-08-20 | 4.5200%             |
| 2025-08-21 | 4.5200%             |
| 2025-08-22 | 4.5200%             |
| 2025-08-25 | 4.5200%             |
| 2025-08-26 | 4.5200%             |
| 2025-08-27 | 4.5300%             |
| 2025-08-28 | 4.5300%             |
| 2025-08-29 | 4.5300%             |

### Daily Net Asset Value per Share (Series)
| Date       | Net Asset Value per Share   |
|:---|:---|
| 2025-08-01 | 1.0004                      |
|  |  |
| 2025-08-04 | 1.0005                      |
|  |  |
| 2025-08-05 | 1.0005                      |
|  |  |
| 2025-08-06 | 1.0005                      |
|  |  |
| 2025-08-07 | 1.0005                      |
|  |  |
| 2025-08-08 | 1.0004                      |
|  |  |
| 2025-08-11 | 1.0005                      |
|  |  |
| 2025-08-12 | 1.0005                      |
|  |  |
| 2025-08-13 | 1.0005                      |
|  |  |
| 2025-08-14 | 1.0005                      |
|  |  |
| 2025-08-15 | 1.0004                      |
|  |  |
| 2025-08-18 | 1.0005                      |
|  |  |
| 2025-08-19 | 1.0005                      |
|  |  |
| 2025-08-20 | 1.0005                      |
|  |  |
| 2025-08-21 | 1.0005                      |
|  |  |
| 2025-08-22 | 1.0005                      |
|  |  |
| 2025-08-25 | 1.0005                      |
|  |  |
| 2025-08-26 | 1.0005                      |
|  |  |
| 2025-08-27 | 1.0005                      |
|  |  |
| 2025-08-28 | 1.0005                      |
|  |  |
| 2025-08-29 | 1.0005                      |
|  |  |

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

### Class: SL Agency Shares

- **Minimum Initial Investment:** $100000000.00

- **Net Assets of Class:** $83640724320.74

- **Number of Shares Outstanding:** 83602715700.3810

- **Expense Reimbursement/Waiver:** 961.00

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2025-08-01 | 1.0004          |
|  |  |
| 2025-08-04 | 1.0005          |
|  |  |
| 2025-08-05 | 1.0005          |
|  |  |
| 2025-08-06 | 1.0005          |
|  |  |
| 2025-08-07 | 1.0005          |
|  |  |
| 2025-08-08 | 1.0004          |
|  |  |
| 2025-08-11 | 1.0005          |
|  |  |
| 2025-08-12 | 1.0005          |
|  |  |
| 2025-08-13 | 1.0005          |
|  |  |
| 2025-08-14 | 1.0005          |
|  |  |
| 2025-08-15 | 1.0004          |
|  |  |
| 2025-08-18 | 1.0005          |
|  |  |
| 2025-08-19 | 1.0005          |
|  |  |
| 2025-08-20 | 1.0005          |
|  |  |
| 2025-08-21 | 1.0005          |
|  |  |
| 2025-08-22 | 1.0005          |
|  |  |
| 2025-08-25 | 1.0005          |
|  |  |
| 2025-08-26 | 1.0005          |
|  |  |
| 2025-08-27 | 1.0005          |
|  |  |
| 2025-08-28 | 1.0005          |
|  |  |
| 2025-08-29 | 1.0005          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2025-08-01 | $2804014900.15            | $1469373274.05          |
| 2025-08-04 | $2405800220.06            | $2525390516.67          |
| 2025-08-05 | $2325545766.87            | $2072830708.81          |
| 2025-08-06 | $1984986048.55            | $2902907219.62          |
| 2025-08-07 | $2125037216.28            | $1685616738.25          |
| 2025-08-08 | $2450095939.33            | $2262267195.57          |
| 2025-08-11 | $1607537674.40            | $2312087425.66          |
| 2025-08-12 | $2020081792.37            | $2100371673.41          |
| 2025-08-13 | $1929417212.15            | $2843823070.75          |
| 2025-08-14 | $2557058597.85            | $1327502884.04          |
| 2025-08-15 | $1209562095.22            | $2726960285.64          |
| 2025-08-18 | $1584361661.82            | $1946568725.38          |
| 2025-08-19 | $1899591055.02            | $1955827081.17          |
| 2025-08-20 | $1508968088.91            | $2515552233.54          |
| 2025-08-21 | $1902608199.51            | $1452168108.58          |
| 2025-08-22 | $2012829027.06            | $2045496602.27          |
| 2025-08-25 | $3685666827.20            | $1483854966.55          |
| 2025-08-26 | $1789268527.46            | $1889624810.70          |
| 2025-08-27 | $2174562142.43            | $1824809044.68          |
| 2025-08-28 | $1841170209.49            | $1461295652.87          |
| 2025-08-29 | $1821918731.26            | $2288652114.12          |

**Total Gross Subscriptions (Month):** $43640081933.39

**Total Gross Redemptions (Month):** $43092980332.33

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2025-08-01 | 4.4500%           |
| 2025-08-04 | 4.4400%           |
| 2025-08-05 | 4.4400%           |
| 2025-08-06 | 4.4300%           |
| 2025-08-07 | 4.4300%           |
| 2025-08-08 | 4.4300%           |
| 2025-08-11 | 4.4300%           |
| 2025-08-12 | 4.4300%           |
| 2025-08-13 | 4.4400%           |
| 2025-08-14 | 4.4400%           |
| 2025-08-15 | 4.4300%           |
| 2025-08-18 | 4.4400%           |
| 2025-08-19 | 4.4300%           |
| 2025-08-20 | 4.4300%           |
| 2025-08-21 | 4.4300%           |
| 2025-08-22 | 4.4300%           |
| 2025-08-25 | 4.4300%           |
| 2025-08-26 | 4.4300%           |
| 2025-08-27 | 4.4400%           |
| 2025-08-28 | 4.4400%           |
| 2025-08-29 | 4.4400%           |

**Beneficial/Record Owner Categories**
| Category                                            | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Registered investment company                       |  | 99.8600%         | 0.0000%              |
| Depository institution or other banking institution |  | 0.1400%          | 0.0000%              |

## Part C: Schedule of Portfolio Securities

### Security 1: Money Market Master Portfolio

- **C.1 - Title:** Money Market Master Portfolio 0.000000%
- **C.6 - Investment Category:** Investment Company
- **Identifiers:** C.3 - CUSIP: BLKRK0BBO, C.3 - LEI: N/A
- **C.18 - Value (incl. sponsor support):** $83965677159.67
- **C.18.a - Value (excl. sponsor support):** $83965677159.67
- **C.19 - Percentage of Net Assets:** 100.0000%
- **C.17 - Yield as of Reporting Date:** 0.0000%
- **C.11 - Maturity Date (WAM):** 2025-09-02
- **C.12 - Maturity Date (WAL):** 2025-09-02
- **C.13 - Final Legal Maturity Date:** 2025-09-02
- **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:** BlackRock Funds III

**Date:** 2025-09-08

**By:** /s/ Chuck Pulsfort

**Name of Signing Officer:** Chuck Pulsfort

**Title of Signing Officer:** Assistant Treasurer