# EDGAR Filing Document

**Accession Number:** 0000893818
**File Stem:** 0001193125-26-144740
**Filing Date:** 2026-4
**Character Count:** 14167
**Document Hash:** 276d6c128e6a79bb7ef34115fc11821c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-144740.hdr.sgml**: 20260407

**ACCESSION NUMBER**: 0001193125-26-144740

**CONFORMED SUBMISSION TYPE**: N-MFP3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260407

**DATE AS OF CHANGE**: 20260407

**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:** 26843374

**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):** 2026-03-31

**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:** $82609215287.74

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

- **Cash:** $0.00

- **Total Other Assets:** $992.00

- **Total Liabilities:** $272424044.23

- **Net Assets of Series:** $82336792235.51

- **Number of Shares Outstanding (Series):** 82316845576.3020

- **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 (%)   |
|:---|:---|:---|:---|:---|
| 2026-03-02 | $31438236069.17           | $46331268883.63            | 36.9600%                  | 54.4700%                   |
| 2026-03-03 | $32897468408.30           | $48179057267.11            | 37.8900%                  | 55.4900%                   |
| 2026-03-04 | $28664785381.79           | $46027283804.61            | 33.9200%                  | 54.4600%                   |
| 2026-03-05 | $29836523719.82           | $46232454633.89            | 35.2600%                  | 54.6300%                   |
| 2026-03-06 | $28029786399.34           | $46600350824.01            | 32.9800%                  | 54.8200%                   |
| 2026-03-09 | $30954596018.32           | $47080229196.51            | 36.2100%                  | 55.0800%                   |
| 2026-03-10 | $30617262200.82           | $47226758439.78            | 35.8900%                  | 55.3500%                   |
| 2026-03-11 | $29948833796.57           | $48344698964.96            | 34.8800%                  | 56.3000%                   |
| 2026-03-12 | $27945400259.50           | $45142379849.51            | 33.1600%                  | 53.5600%                   |
| 2026-03-13 | $24753485451.13           | $45094175083.73            | 29.8400%                  | 54.3600%                   |
| 2026-03-16 | $26013432129.25           | $43820441557.21            | 31.9100%                  | 53.7500%                   |
| 2026-03-17 | $27810834577.08           | $45746078696.63            | 33.3200%                  | 54.8100%                   |
| 2026-03-18 | $26864881795.42           | $46978178272.31            | 31.6100%                  | 55.2800%                   |
| 2026-03-19 | $29918537315.16           | $47766945534.11            | 35.1400%                  | 56.1000%                   |
| 2026-03-20 | $30468519757.65           | $49238471993.11            | 35.0000%                  | 56.5600%                   |
| 2026-03-23 | $32329443788.01           | $48645679314.81            | 37.3400%                  | 56.1900%                   |
| 2026-03-24 | $31831249760.30           | $48001759282.45            | 36.4900%                  | 55.0300%                   |
| 2026-03-25 | $31758655592.22           | $49563688439.62            | 35.5000%                  | 55.4000%                   |
| 2026-03-26 | $30105555417.49           | $47006573681.95            | 34.5500%                  | 53.9500%                   |
| 2026-03-27 | $27282270151.80           | $44684978714.32            | 32.1700%                  | 52.6900%                   |
| 2026-03-30 | $27462799149.49           | $43331138205.20            | 33.0700%                  | 52.1800%                   |
| 2026-03-31 | $28634772299.81           | $43625211325.19            | 34.5500%                  | 52.6400%                   |

### 7-Day Gross Yield
| Date       | 7-Day Gross Yield   |
|:---|:---|
| 2026-03-02 | 3.9300%             |
| 2026-03-03 | 3.9200%             |
| 2026-03-04 | 3.9200%             |
| 2026-03-05 | 3.9100%             |
| 2026-03-06 | 3.8900%             |
| 2026-03-09 | 3.8800%             |
| 2026-03-10 | 3.8800%             |
| 2026-03-11 | 3.8700%             |
| 2026-03-12 | 3.8700%             |
| 2026-03-13 | 3.8600%             |
| 2026-03-16 | 3.8700%             |
| 2026-03-17 | 3.8700%             |
| 2026-03-18 | 3.8700%             |
| 2026-03-19 | 3.8700%             |
| 2026-03-20 | 3.8600%             |
| 2026-03-23 | 3.8400%             |
| 2026-03-24 | 3.8400%             |
| 2026-03-25 | 3.8300%             |
| 2026-03-26 | 3.8400%             |
| 2026-03-27 | 3.8400%             |
| 2026-03-30 | 3.8500%             |
| 2026-03-31 | 3.8600%             |

### Daily Net Asset Value per Share (Series)
| Date       | Net Asset Value per Share   |
|:---|:---|
| 2026-03-02 | 1.0005                      |
|  |  |
| 2026-03-03 | 1.0005                      |
|  |  |
| 2026-03-04 | 1.0005                      |
|  |  |
| 2026-03-05 | 1.0004                      |
|  |  |
| 2026-03-06 | 1.0004                      |
|  |  |
| 2026-03-09 | 1.0004                      |
|  |  |
| 2026-03-10 | 1.0004                      |
|  |  |
| 2026-03-11 | 1.0004                      |
|  |  |
| 2026-03-12 | 1.0004                      |
|  |  |
| 2026-03-13 | 1.0003                      |
|  |  |
| 2026-03-16 | 1.0003                      |
|  |  |
| 2026-03-17 | 1.0003                      |
|  |  |
| 2026-03-18 | 1.0003                      |
|  |  |
| 2026-03-19 | 1.0002                      |
|  |  |
| 2026-03-20 | 1.0002                      |
|  |  |
| 2026-03-23 | 1.0002                      |
|  |  |
| 2026-03-24 | 1.0002                      |
|  |  |
| 2026-03-25 | 1.0002                      |
|  |  |
| 2026-03-26 | 1.0002                      |
|  |  |
| 2026-03-27 | 1.0002                      |
|  |  |
| 2026-03-30 | 1.0002                      |
|  |  |
| 2026-03-31 | 1.0002                      |
|  |  |

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

### Class: SL Agency Shares

- **Minimum Initial Investment:** $100000000.00

- **Net Assets of Class:** $82336792235.51

- **Number of Shares Outstanding:** 82316845576.3020

- **Expense Reimbursement/Waiver:** 992.00

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2026-03-02 | 1.0005          |
|  |  |
| 2026-03-03 | 1.0005          |
|  |  |
| 2026-03-04 | 1.0005          |
|  |  |
| 2026-03-05 | 1.0004          |
|  |  |
| 2026-03-06 | 1.0004          |
|  |  |
| 2026-03-09 | 1.0004          |
|  |  |
| 2026-03-10 | 1.0004          |
|  |  |
| 2026-03-11 | 1.0004          |
|  |  |
| 2026-03-12 | 1.0004          |
|  |  |
| 2026-03-13 | 1.0003          |
|  |  |
| 2026-03-16 | 1.0003          |
|  |  |
| 2026-03-17 | 1.0003          |
|  |  |
| 2026-03-18 | 1.0003          |
|  |  |
| 2026-03-19 | 1.0002          |
|  |  |
| 2026-03-20 | 1.0002          |
|  |  |
| 2026-03-23 | 1.0002          |
|  |  |
| 2026-03-24 | 1.0002          |
|  |  |
| 2026-03-25 | 1.0002          |
|  |  |
| 2026-03-26 | 1.0002          |
|  |  |
| 2026-03-27 | 1.0002          |
|  |  |
| 2026-03-30 | 1.0002          |
|  |  |
| 2026-03-31 | 1.0002          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2026-03-02 | $3857708848.32            | $1733094076.17          |
| 2026-03-03 | $2949634853.87            | $1483375735.59          |
| 2026-03-04 | $1613715136.96            | $3912938003.87          |
| 2026-03-05 | $2469397071.29            | $2917569949.22          |
| 2026-03-06 | $2328784358.67            | $1977294963.09          |
| 2026-03-09 | $2238077230.19            | $2032009754.52          |
| 2026-03-10 | $2660908065.53            | $1757014235.09          |
| 2026-03-11 | $2504301509.36            | $1959630505.27          |
| 2026-03-12 | $1062738136.82            | $2656569861.04          |
| 2026-03-13 | $1491304245.98            | $3273214633.44          |
| 2026-03-16 | $1354902640.59            | $2346262293.59          |
| 2026-03-17 | $3346019971.72            | $1437186218.31          |
| 2026-03-18 | $3108984620.65            | $1798432962.38          |
| 2026-03-19 | $2551321852.15            | $2666314817.83          |
| 2026-03-20 | $3022828407.90            | $1248931334.68          |
| 2026-03-23 | $2630054597.12            | $2517600918.44          |
| 2026-03-24 | $2056116632.03            | $1925281989.95          |
| 2026-03-25 | $3267244821.28            | $1619895348.98          |
| 2026-03-26 | $1096193427.79            | $3165090977.65          |
| 2026-03-27 | $1282080273.06            | $3003276202.00          |
| 2026-03-30 | $1396412882.37            | $2994561135.88          |
| 2026-03-31 | $1714842645.31            | $2154544147.08          |

**Total Gross Subscriptions (Month):** $50003572228.96

**Total Gross Redemptions (Month):** $50580090064.07

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2026-03-02 | 3.8400%           |
| 2026-03-03 | 3.8300%           |
| 2026-03-04 | 3.8300%           |
| 2026-03-05 | 3.8200%           |
| 2026-03-06 | 3.8000%           |
| 2026-03-09 | 3.7900%           |
| 2026-03-10 | 3.7900%           |
| 2026-03-11 | 3.7800%           |
| 2026-03-12 | 3.7800%           |
| 2026-03-13 | 3.7700%           |
| 2026-03-16 | 3.7800%           |
| 2026-03-17 | 3.7800%           |
| 2026-03-18 | 3.7800%           |
| 2026-03-19 | 3.7800%           |
| 2026-03-20 | 3.7600%           |
| 2026-03-23 | 3.7500%           |
| 2026-03-24 | 3.7500%           |
| 2026-03-25 | 3.7400%           |
| 2026-03-26 | 3.7500%           |
| 2026-03-27 | 3.7500%           |
| 2026-03-30 | 3.7600%           |
| 2026-03-31 | 3.7700%           |

**Beneficial/Record Owner Categories**
| Category                                            | Other Category   | Record Owner %   | Beneficial Owner %   |
|:---|:---|:---|:---|
| Registered investment company                       |  | 99.9400%         | 0.0000%              |
| Depository institution or other banking institution |  | 0.0500%          | 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):** $82609215287.74
- **C.18.a - Value (excl. sponsor support):** $82609215287.74
- **C.19 - Percentage of Net Assets:** 100.0000%
- **C.17 - Yield as of Reporting Date:** 0.0000%
- **C.11 - Maturity Date (WAM):** 2026-04-01
- **C.12 - Maturity Date (WAL):** 2026-04-01
- **C.13 - Final Legal Maturity Date:** 2026-04-01
- **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:** 2026-04-07

**By:** /s/ Chuck Pulsfort

**Name of Signing Officer:** Chuck Pulsfort

**Title of Signing Officer:** Assistant Treasurer