# EDGAR Filing Document

**Accession Number:** 0000893818
**File Stem:** 0001193125-26-208735
**Filing Date:** 2026-5
**Character Count:** 13803
**Document Hash:** 970fb0ad1f3495fdf3db0afd2e9c3e5d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-208735.hdr.sgml**: 20260506

**ACCESSION NUMBER**: 0001193125-26-208735

**CONFORMED SUBMISSION TYPE**: N-MFP3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260430

**FILED AS OF DATE**: 20260506

**DATE AS OF CHANGE**: 20260506

**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:** 26947904

**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):** 2026-04-30

**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:** $86781127833.06

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

- **Cash:** $0.00

- **Total Other Assets:** $930.07

- **Total Liabilities:** $274777100.45

- **Net Assets of Series:** $86506351662.68

- **Number of Shares Outstanding (Series):** 86477627148.0120

- **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 (%)   |
|:---|:---|:---|:---|:---|
| 2026-04-01 | $32577071548.82           | $46789706761.49            | 37.8900%                  | 54.4200%                   |
| 2026-04-02 | $31222155578.63           | $47767171580.97            | 36.2600%                  | 55.4800%                   |
| 2026-04-06 | $34018039970.58           | $49080717512.98            | 38.9600%                  | 56.2200%                   |
| 2026-04-07 | $33873970339.28           | $48623391357.91            | 38.6200%                  | 55.4300%                   |
| 2026-04-08 | $32585617002.39           | $48587518968.40            | 37.0800%                  | 55.2800%                   |
| 2026-04-09 | $31258057532.11           | $48637315502.12            | 35.1100%                  | 54.6300%                   |
| 2026-04-10 | $29725572701.11           | $47184365618.40            | 33.5000%                  | 53.1700%                   |
| 2026-04-13 | $31586542777.23           | $47249483427.45            | 35.5900%                  | 53.2400%                   |
| 2026-04-14 | $31830691864.14           | $47852101341.04            | 35.6900%                  | 53.6500%                   |
| 2026-04-15 | $30446174640.08           | $47809914811.57            | 34.0700%                  | 53.5000%                   |
| 2026-04-16 | $29703027140.31           | $47345056576.79            | 33.3600%                  | 53.1700%                   |
| 2026-04-17 | $29859313579.32           | $46812239182.58            | 33.5800%                  | 52.6500%                   |
| 2026-04-20 | $32808018627.52           | $48270700474.73            | 36.5200%                  | 53.7400%                   |
| 2026-04-21 | $32783242398.78           | $47836488654.53            | 36.6700%                  | 53.5100%                   |
| 2026-04-22 | $31059344031.47           | $48412782119.29            | 34.3600%                  | 53.5500%                   |
| 2026-04-23 | $30322132012.55           | $48387503924.09            | 33.6700%                  | 53.7300%                   |
| 2026-04-24 | $28344265600.72           | $46122077856.85            | 32.3500%                  | 52.6500%                   |
| 2026-04-27 | $30463263594.80           | $46916984547.12            | 34.5100%                  | 53.1500%                   |
| 2026-04-28 | $30054027792.87           | $46492480957.18            | 33.8600%                  | 52.3700%                   |
| 2026-04-29 | $26497172892.64           | $45790950791.87            | 30.2900%                  | 52.3500%                   |
| 2026-04-30 | $26726381883.05           | $46177153438.05            | 30.4200%                  | 52.5500%                   |

### 7-Day Gross Yield
| Date       | 7-Day Gross Yield   |
|:---|:---|
| 2026-04-01 | 3.8700%             |
| 2026-04-02 | 3.8800%             |
| 2026-04-06 | 3.8800%             |
| 2026-04-07 | 3.8700%             |
| 2026-04-08 | 3.8700%             |
| 2026-04-09 | 3.8600%             |
| 2026-04-10 | 3.8500%             |
| 2026-04-13 | 3.8500%             |
| 2026-04-14 | 3.8500%             |
| 2026-04-15 | 3.8600%             |
| 2026-04-16 | 3.8700%             |
| 2026-04-17 | 3.8900%             |
| 2026-04-20 | 3.8900%             |
| 2026-04-21 | 3.8900%             |
| 2026-04-22 | 3.8800%             |
| 2026-04-23 | 3.8800%             |
| 2026-04-24 | 3.8900%             |
| 2026-04-27 | 3.9000%             |
| 2026-04-28 | 3.9000%             |
| 2026-04-29 | 3.9100%             |
| 2026-04-30 | 3.9200%             |

### Daily Net Asset Value per Share (Series)
| Date       | Net Asset Value per Share   |
|:---|:---|
| 2026-04-01 | 1.0003                      |
|  |  |
| 2026-04-02 | 1.0002                      |
|  |  |
| 2026-04-06 | 1.0002                      |
|  |  |
| 2026-04-07 | 1.0002                      |
|  |  |
| 2026-04-08 | 1.0003                      |
|  |  |
| 2026-04-09 | 1.0003                      |
|  |  |
| 2026-04-10 | 1.0002                      |
|  |  |
| 2026-04-13 | 1.0003                      |
|  |  |
| 2026-04-14 | 1.0003                      |
|  |  |
| 2026-04-15 | 1.0003                      |
|  |  |
| 2026-04-16 | 1.0003                      |
|  |  |
| 2026-04-17 | 1.0003                      |
|  |  |
| 2026-04-20 | 1.0003                      |
|  |  |
| 2026-04-21 | 1.0003                      |
|  |  |
| 2026-04-22 | 1.0003                      |
|  |  |
| 2026-04-23 | 1.0003                      |
|  |  |
| 2026-04-24 | 1.0003                      |
|  |  |
| 2026-04-27 | 1.0003                      |
|  |  |
| 2026-04-28 | 1.0003                      |
|  |  |
| 2026-04-29 | 1.0003                      |
|  |  |
| 2026-04-30 | 1.0003                      |
|  |  |

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

### Class: SL Agency Shares

- **Minimum Initial Investment:** $100000000.00

- **Net Assets of Class:** $86506351662.68

- **Number of Shares Outstanding:** 86477627148.0120

- **Expense Reimbursement/Waiver:** 930.00

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2026-04-01 | 1.0003          |
|  |  |
| 2026-04-02 | 1.0002          |
|  |  |
| 2026-04-06 | 1.0002          |
|  |  |
| 2026-04-07 | 1.0002          |
|  |  |
| 2026-04-08 | 1.0003          |
|  |  |
| 2026-04-09 | 1.0003          |
|  |  |
| 2026-04-10 | 1.0002          |
|  |  |
| 2026-04-13 | 1.0003          |
|  |  |
| 2026-04-14 | 1.0003          |
|  |  |
| 2026-04-15 | 1.0003          |
|  |  |
| 2026-04-16 | 1.0003          |
|  |  |
| 2026-04-17 | 1.0003          |
|  |  |
| 2026-04-20 | 1.0003          |
|  |  |
| 2026-04-21 | 1.0003          |
|  |  |
| 2026-04-22 | 1.0003          |
|  |  |
| 2026-04-23 | 1.0003          |
|  |  |
| 2026-04-24 | 1.0003          |
|  |  |
| 2026-04-27 | 1.0003          |
|  |  |
| 2026-04-28 | 1.0003          |
|  |  |
| 2026-04-29 | 1.0003          |
|  |  |
| 2026-04-30 | 1.0003          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2026-04-01 | $4517216526.91            | $884103223.18           |
| 2026-04-02 | $2322166878.17            | $2230807044.58          |
| 2026-04-06 | $2703960516.55            | $1782986024.11          |
| 2026-04-07 | $2906143240.06            | $2470524320.75          |
| 2026-04-08 | $1932849112.56            | $1889246910.56          |
| 2026-04-09 | $2792386621.81            | $1706020834.34          |
| 2026-04-10 | $1720831531.20            | $2249944784.76          |
| 2026-04-13 | $2152622200.91            | $1529349737.18          |
| 2026-04-14 | $2173874176.92            | $1747554190.75          |
| 2026-04-15 | $2387976743.68            | $2234850238.68          |
| 2026-04-16 | $1344106273.05            | $2088496443.33          |
| 2026-04-17 | $1755346019.50            | $1646969947.85          |
| 2026-04-20 | $2901748515.46            | $1843790223.19          |
| 2026-04-21 | $1509385586.56            | $2280099567.05          |
| 2026-04-22 | $2356774236.39            | $1953924410.39          |
| 2026-04-23 | $2256417831.62            | $2012543410.95          |
| 2026-04-24 | $889546510.42             | $3642231651.02          |
| 2026-04-27 | $2429871755.90            | $1727677359.00          |
| 2026-04-28 | $1847268964.00            | $1991883953.05          |
| 2026-04-29 | $1117644116.98            | $2054610716.36          |
| 2026-04-30 | $1989899861.96            | $1878484289.01          |

**Total Gross Subscriptions (Month):** $46008037220.61

**Total Gross Redemptions (Month):** $41846099280.09

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2026-04-01 | 3.7800%           |
| 2026-04-02 | 3.7800%           |
| 2026-04-06 | 3.7900%           |
| 2026-04-07 | 3.7800%           |
| 2026-04-08 | 3.7800%           |
| 2026-04-09 | 3.7700%           |
| 2026-04-10 | 3.7600%           |
| 2026-04-13 | 3.7600%           |
| 2026-04-14 | 3.7600%           |
| 2026-04-15 | 3.7700%           |
| 2026-04-16 | 3.7800%           |
| 2026-04-17 | 3.8000%           |
| 2026-04-20 | 3.8000%           |
| 2026-04-21 | 3.8000%           |
| 2026-04-22 | 3.7900%           |
| 2026-04-23 | 3.7900%           |
| 2026-04-24 | 3.8000%           |
| 2026-04-27 | 3.8100%           |
| 2026-04-28 | 3.8100%           |
| 2026-04-29 | 3.8200%           |
| 2026-04-30 | 3.8300%           |

**Beneficial/Record Owner Categories**
| Category                                            | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Registered investment company                       |  | 99.9800%         | 0.0000%              |
| Depository institution or other banking institution |  | 0.0200%          | 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):** $86781127833.06
- **C.18.a - Value (excl. sponsor support):** $86781127833.06
- **C.19 - Percentage of Net Assets:** 100.0000%
- **C.17 - Yield as of Reporting Date:** 0.0000%
- **C.11 - Maturity Date (WAM):** 2026-05-01
- **C.12 - Maturity Date (WAL):** 2026-05-01
- **C.13 - Final Legal Maturity Date:** 2026-05-01
- **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:** 2026-05-06

**By:** /s/ Chuck Pulsfort

**Name of Signing Officer:** Chuck Pulsfort

**Title of Signing Officer:** Assistant Treasurer