# EDGAR Filing Document

**Accession Number:** 0000893818
**File Stem:** 0001193125-26-257305
**Filing Date:** 2026-6
**Character Count:** 13440
**Document Hash:** f923fa51366a9338fa2e31b17c85e596
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-257305.hdr.sgml**: 20260604

**ACCESSION NUMBER**: 0001193125-26-257305

**CONFORMED SUBMISSION TYPE**: N-MFP3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260531

**FILED AS OF DATE**: 20260604

**DATE AS OF CHANGE**: 20260604

**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:** 261064717

**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):** 2026-05-31

**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:** $94605178345.08

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

- **Cash:** $0.00

- **Total Other Assets:** $961.00

- **Total Liabilities:** $289313439.16

- **Net Assets of Series:** $94315865866.92

- **Number of Shares Outstanding (Series):** 94285593240.3410

- **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 (%)   |
|:---|:---|:---|:---|:---|
| 2026-05-01 | $30529502180.92           | $48032188344.81            | 34.0900%                  | 53.6300%                   |
| 2026-05-04 | $31280520162.16           | $48139650430.57            | 34.9000%                  | 53.7200%                   |
| 2026-05-05 | $32854327022.13           | $49645548469.14            | 36.0600%                  | 54.4900%                   |
| 2026-05-06 | $30686458236.07           | $49508140031.25            | 33.7200%                  | 54.4000%                   |
| 2026-05-07 | $30537354299.82           | $50310533158.63            | 32.9900%                  | 54.3600%                   |
| 2026-05-08 | $31452968815.86           | $49862260680.49            | 33.9800%                  | 53.8800%                   |
| 2026-05-11 | $33096503918.32           | $50527110622.88            | 35.4700%                  | 54.1500%                   |
| 2026-05-12 | $31366615266.22           | $48964336291.08            | 34.3400%                  | 53.6000%                   |
| 2026-05-13 | $27454873438.99           | $47134001659.45            | 30.5500%                  | 52.4600%                   |
| 2026-05-14 | $28630586456.89           | $48076843510.08            | 31.5800%                  | 53.0400%                   |
| 2026-05-15 | $29154856707.65           | $48467802335.72            | 32.0800%                  | 53.3400%                   |
| 2026-05-18 | $29990823066.22           | $48537025922.76            | 33.1100%                  | 53.5800%                   |
| 2026-05-19 | $28979647314.86           | $47255290703.94            | 32.4100%                  | 52.8500%                   |
| 2026-05-20 | $23654913549.50           | $45341156508.25            | 26.6900%                  | 51.1600%                   |
| 2026-05-21 | $28084152565.64           | $47441167292.56            | 31.2900%                  | 52.8500%                   |
| 2026-05-22 | $31007230958.06           | $46826105280.52            | 34.8100%                  | 52.5700%                   |
| 2026-05-26 | $35008300227.93           | $50087905990.79            | 37.6900%                  | 53.9300%                   |
| 2026-05-27 | $32949866806.34           | $51574905126.78            | 35.0400%                  | 54.8500%                   |
| 2026-05-28 | $30457379793.68           | $48819451638.10            | 33.2300%                  | 53.2600%                   |
| 2026-05-29 | $32987627710.38           | $52177160490.40            | 34.8700%                  | 55.1600%                   |

### 7-Day Gross Yield
| Date       | 7-Day Gross Yield   |
|:---|:---|
| 2026-05-01 | 3.9000%             |
| 2026-05-04 | 3.9000%             |
| 2026-05-05 | 3.8900%             |
| 2026-05-06 | 3.8800%             |
| 2026-05-07 | 3.8700%             |
| 2026-05-08 | 3.8600%             |
| 2026-05-11 | 3.8500%             |
| 2026-05-12 | 3.8500%             |
| 2026-05-13 | 3.8500%             |
| 2026-05-14 | 3.8500%             |
| 2026-05-15 | 3.8500%             |
| 2026-05-18 | 3.8500%             |
| 2026-05-19 | 3.8500%             |
| 2026-05-20 | 3.8400%             |
| 2026-05-21 | 3.8400%             |
| 2026-05-22 | 3.8200%             |
| 2026-05-26 | 3.8200%             |
| 2026-05-27 | 3.8300%             |
| 2026-05-28 | 3.8400%             |
| 2026-05-29 | 3.8500%             |

### Daily Net Asset Value per Share (Series)
| Date       | Net Asset Value per Share   |
|:---|:---|
| 2026-05-01 | 1.0003                      |
|  |  |
| 2026-05-04 | 1.0003                      |
|  |  |
| 2026-05-05 | 1.0003                      |
|  |  |
| 2026-05-06 | 1.0004                      |
|  |  |
| 2026-05-07 | 1.0004                      |
|  |  |
| 2026-05-08 | 1.0003                      |
|  |  |
| 2026-05-11 | 1.0004                      |
|  |  |
| 2026-05-12 | 1.0004                      |
|  |  |
| 2026-05-13 | 1.0004                      |
|  |  |
| 2026-05-14 | 1.0004                      |
|  |  |
| 2026-05-15 | 1.0003                      |
|  |  |
| 2026-05-18 | 1.0003                      |
|  |  |
| 2026-05-19 | 1.0004                      |
|  |  |
| 2026-05-20 | 1.0003                      |
|  |  |
| 2026-05-21 | 1.0003                      |
|  |  |
| 2026-05-22 | 1.0003                      |
|  |  |
| 2026-05-26 | 1.0003                      |
|  |  |
| 2026-05-27 | 1.0004                      |
|  |  |
| 2026-05-28 | 1.0003                      |
|  |  |
| 2026-05-29 | 1.0003                      |
|  |  |

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

### Class: SL Agency Shares

- **Minimum Initial Investment:** $100000000.00

- **Net Assets of Class:** $94315865866.92

- **Number of Shares Outstanding:** 94285593240.3410

- **Expense Reimbursement/Waiver:** 961.00

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2026-05-01 | 1.0003          |
|  |  |
| 2026-05-04 | 1.0003          |
|  |  |
| 2026-05-05 | 1.0003          |
|  |  |
| 2026-05-06 | 1.0004          |
|  |  |
| 2026-05-07 | 1.0004          |
|  |  |
| 2026-05-08 | 1.0003          |
|  |  |
| 2026-05-11 | 1.0004          |
|  |  |
| 2026-05-12 | 1.0004          |
|  |  |
| 2026-05-13 | 1.0004          |
|  |  |
| 2026-05-14 | 1.0004          |
|  |  |
| 2026-05-15 | 1.0003          |
|  |  |
| 2026-05-18 | 1.0003          |
|  |  |
| 2026-05-19 | 1.0004          |
|  |  |
| 2026-05-20 | 1.0003          |
|  |  |
| 2026-05-21 | 1.0003          |
|  |  |
| 2026-05-22 | 1.0003          |
|  |  |
| 2026-05-26 | 1.0003          |
|  |  |
| 2026-05-27 | 1.0004          |
|  |  |
| 2026-05-28 | 1.0003          |
|  |  |
| 2026-05-29 | 1.0003          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2026-05-01 | $4089246224.26            | $1526523217.73          |
| 2026-05-04 | $1595118884.28            | $2211911105.62          |
| 2026-05-05 | $2246624517.12            | $1168370065.57          |
| 2026-05-06 | $2800378439.46            | $1703674103.46          |
| 2026-05-07 | $2553179676.32            | $1651755827.43          |
| 2026-05-08 | $1372539186.05            | $2081903186.54          |
| 2026-05-11 | $2184733563.81            | $1246385435.85          |
| 2026-05-12 | $1517706232.46            | $2459385332.21          |
| 2026-05-13 | $1418133990.76            | $2823417011.02          |
| 2026-05-14 | $1457145265.70            | $1361149522.46          |
| 2026-05-15 | $1828567275.45            | $2202383909.13          |
| 2026-05-18 | $2294187295.49            | $1324669154.18          |
| 2026-05-19 | $1121600746.01            | $2562342821.05          |
| 2026-05-20 | $1083313310.83            | $2895125648.17          |
| 2026-05-21 | $2317183796.05            | $1408159975.23          |
| 2026-05-22 | $2306194051.05            | $1213201505.16          |
| 2026-05-26 | $3011799176.53            | $1005912196.15          |
| 2026-05-27 | $2454084850.46            | $1134154009.95          |
| 2026-05-28 | $1483063706.06            | $2793874046.84          |
| 2026-05-29 | $4862165910.21            | $1412484203.95          |

**Total Gross Subscriptions (Month):** $43996966098.36

**Total Gross Redemptions (Month):** $36186782277.70

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2026-05-01 | 3.8100%           |
| 2026-05-04 | 3.8000%           |
| 2026-05-05 | 3.8000%           |
| 2026-05-06 | 3.7900%           |
| 2026-05-07 | 3.7800%           |
| 2026-05-08 | 3.7700%           |
| 2026-05-11 | 3.7600%           |
| 2026-05-12 | 3.7600%           |
| 2026-05-13 | 3.7600%           |
| 2026-05-14 | 3.7600%           |
| 2026-05-15 | 3.7600%           |
| 2026-05-18 | 3.7600%           |
| 2026-05-19 | 3.7600%           |
| 2026-05-20 | 3.7500%           |
| 2026-05-21 | 3.7500%           |
| 2026-05-22 | 3.7300%           |
| 2026-05-26 | 3.7300%           |
| 2026-05-27 | 3.7400%           |
| 2026-05-28 | 3.7500%           |
| 2026-05-29 | 3.7600%           |

**Beneficial/Record Owner Categories**
| Category                                            | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Registered investment company                       |  | 99.9900%         | 0.0000%              |
| Depository institution or other banking institution |  | 0.0100%          | 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):** $94605178345.08
- **C.18.a - Value (excl. sponsor support):** $94605178345.08
- **C.19 - Percentage of Net Assets:** 100.0000%
- **C.17 - Yield as of Reporting Date:** 0.0000%
- **C.11 - Maturity Date (WAM):** 2026-06-01
- **C.12 - Maturity Date (WAL):** 2026-06-01
- **C.13 - Final Legal Maturity Date:** 2026-06-01
- **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:** 2026-06-04

**By:** /s/ Chuck Pulsfort

**Name of Signing Officer:** Chuck Pulsfort

**Title of Signing Officer:** Assistant Treasurer