# EDGAR Filing Document

**Accession Number:** 0000893818
**File Stem:** 0001193125-26-006437
**Filing Date:** 2026-1
**Character Count:** 14167
**Document Hash:** 71978f7734bb969f0013288594756c0a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-006437.hdr.sgml**: 20260107

**ACCESSION NUMBER**: 0001193125-26-006437

**CONFORMED SUBMISSION TYPE**: N-MFP3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260107

**DATE AS OF CHANGE**: 20260107

**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:** 26516231

**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):** 2025-12-31

**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:** $74452599449.81

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

- **Cash:** $0.00

- **Total Other Assets:** $993.00

- **Total Liabilities:** $265174534.41

- **Net Assets of Series:** $74187425908.40

- **Number of Shares Outstanding (Series):** 74150243820.4460

- **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 (%)   |
|:---|:---|:---|:---|:---|
| 2025-12-01 | $33751814455.25           | $42320296001.39            | 44.1400%                  | 55.3400%                   |
| 2025-12-02 | $32270762249.34           | $41309869484.69            | 42.5300%                  | 54.4400%                   |
| 2025-12-03 | $31591809067.60           | $42063216429.24            | 40.9800%                  | 54.5600%                   |
| 2025-12-04 | $28999603380.91           | $40057872032.60            | 38.4100%                  | 53.0600%                   |
| 2025-12-05 | $29564438108.19           | $40939782847.30            | 38.8700%                  | 53.8200%                   |
| 2025-12-08 | $31350216896.64           | $40737564834.38            | 41.2000%                  | 53.5400%                   |
| 2025-12-09 | $33016415827.65           | $41471023798.73            | 42.8400%                  | 53.8100%                   |
| 2025-12-10 | $32623929283.21           | $42211341383.71            | 41.9800%                  | 54.3100%                   |
| 2025-12-11 | $31715023823.97           | $41141685752.64            | 41.4600%                  | 53.7800%                   |
| 2025-12-12 | $32911790699.41           | $42724285523.49            | 42.4400%                  | 55.0900%                   |
| 2025-12-15 | $32301911492.44           | $40612884762.90            | 42.8700%                  | 53.9000%                   |
| 2025-12-16 | $34156800270.87           | $43259714212.32            | 43.7100%                  | 55.3600%                   |
| 2025-12-17 | $31876237065.31           | $41659884223.59            | 40.9400%                  | 53.5000%                   |
| 2025-12-18 | $32432448356.79           | $41831506891.46            | 41.4200%                  | 53.4300%                   |
| 2025-12-19 | $31664358261.64           | $41117860711.80            | 40.9000%                  | 53.1100%                   |
| 2025-12-22 | $37754070644.51           | $44934258267.07            | 46.3100%                  | 55.1200%                   |
| 2025-12-23 | $32061807046.42           | $42352074632.98            | 40.8100%                  | 53.9000%                   |
| 2025-12-24 | $29692193372.50           | $41418946627.61            | 38.4400%                  | 53.6200%                   |
| 2025-12-26 | $31017792451.19           | $41700626288.84            | 40.1600%                  | 53.9900%                   |
| 2025-12-29 | $31202436287.13           | $40800143236.84            | 40.5900%                  | 53.0700%                   |
| 2025-12-30 | $26654540054.34           | $39858123265.22            | 35.2700%                  | 52.7400%                   |
| 2025-12-31 | $29153326593.99           | $39053916472.33            | 38.8900%                  | 52.1000%                   |

### 7-Day Gross Yield
| Date       | 7-Day Gross Yield   |
|:---|:---|
| 2025-12-01 | 4.2100%             |
| 2025-12-02 | 4.2300%             |
| 2025-12-03 | 4.2300%             |
| 2025-12-04 | 4.2400%             |
| 2025-12-05 | 4.2000%             |
| 2025-12-08 | 4.1900%             |
| 2025-12-09 | 4.1800%             |
| 2025-12-10 | 4.1600%             |
| 2025-12-11 | 4.1400%             |
| 2025-12-12 | 4.0500%             |
| 2025-12-15 | 4.0200%             |
| 2025-12-16 | 3.9900%             |
| 2025-12-17 | 3.9700%             |
| 2025-12-18 | 3.9500%             |
| 2025-12-19 | 3.9300%             |
| 2025-12-22 | 3.9300%             |
| 2025-12-23 | 3.9200%             |
| 2025-12-24 | 3.9200%             |
| 2025-12-26 | 3.9300%             |
| 2025-12-29 | 3.9400%             |
| 2025-12-30 | 3.9500%             |
| 2025-12-31 | 3.9800%             |

### Daily Net Asset Value per Share (Series)
| Date       | Net Asset Value per Share   |
|:---|:---|
| 2025-12-01 | 1.0005                      |
|  |  |
| 2025-12-02 | 1.0005                      |
|  |  |
| 2025-12-03 | 1.0005                      |
|  |  |
| 2025-12-04 | 1.0005                      |
|  |  |
| 2025-12-05 | 1.0005                      |
|  |  |
| 2025-12-08 | 1.0005                      |
|  |  |
| 2025-12-09 | 1.0005                      |
|  |  |
| 2025-12-10 | 1.0005                      |
|  |  |
| 2025-12-11 | 1.0005                      |
|  |  |
| 2025-12-12 | 1.0005                      |
|  |  |
| 2025-12-15 | 1.0005                      |
|  |  |
| 2025-12-16 | 1.0005                      |
|  |  |
| 2025-12-17 | 1.0005                      |
|  |  |
| 2025-12-18 | 1.0005                      |
|  |  |
| 2025-12-19 | 1.0005                      |
|  |  |
| 2025-12-22 | 1.0005                      |
|  |  |
| 2025-12-23 | 1.0005                      |
|  |  |
| 2025-12-24 | 1.0005                      |
|  |  |
| 2025-12-26 | 1.0005                      |
|  |  |
| 2025-12-29 | 1.0005                      |
|  |  |
| 2025-12-30 | 1.0005                      |
|  |  |
| 2025-12-31 | 1.0005                      |
|  |  |

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

### Class: SL Agency Shares

- **Minimum Initial Investment:** $100000000.00

- **Net Assets of Class:** $74187425908.40

- **Number of Shares Outstanding:** 74150243820.4460

- **Expense Reimbursement/Waiver:** 962.00

**Daily Net Asset Value per Share (Class)**
| Date       | NAV per Share   |
|:---|:---|
| 2025-12-01 | 1.0005          |
|  |  |
| 2025-12-02 | 1.0005          |
|  |  |
| 2025-12-03 | 1.0005          |
|  |  |
| 2025-12-04 | 1.0005          |
|  |  |
| 2025-12-05 | 1.0005          |
|  |  |
| 2025-12-08 | 1.0005          |
|  |  |
| 2025-12-09 | 1.0005          |
|  |  |
| 2025-12-10 | 1.0005          |
|  |  |
| 2025-12-11 | 1.0005          |
|  |  |
| 2025-12-12 | 1.0005          |
|  |  |
| 2025-12-15 | 1.0005          |
|  |  |
| 2025-12-16 | 1.0005          |
|  |  |
| 2025-12-17 | 1.0005          |
|  |  |
| 2025-12-18 | 1.0005          |
|  |  |
| 2025-12-19 | 1.0005          |
|  |  |
| 2025-12-22 | 1.0005          |
|  |  |
| 2025-12-23 | 1.0005          |
|  |  |
| 2025-12-24 | 1.0005          |
|  |  |
| 2025-12-26 | 1.0005          |
|  |  |
| 2025-12-29 | 1.0005          |
|  |  |
| 2025-12-30 | 1.0005          |
|  |  |
| 2025-12-31 | 1.0005          |
|  |  |

**Daily Shareholder Flows**
| Date       | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| 2025-12-01 | $1936756069.45            | $1835393093.96          |
| 2025-12-02 | $1748524565.31            | $2234339036.55          |
| 2025-12-03 | $2699824362.91            | $1981893298.48          |
| 2025-12-04 | $2178611829.32            | $3711630214.15          |
| 2025-12-05 | $2751589242.71            | $1489806411.75          |
| 2025-12-08 | $2237519610.46            | $2050449107.12          |
| 2025-12-09 | $2671432469.06            | $1723043714.09          |
| 2025-12-10 | $1929804930.58            | $1547311534.89          |
| 2025-12-11 | $1908839574.70            | $2790928950.19          |
| 2025-12-12 | $3189202563.04            | $2001360717.47          |
| 2025-12-15 | $1514069357.31            | $3901124414.92          |
| 2025-12-16 | $3652213313.55            | $1606140722.89          |
| 2025-12-17 | $3500796956.88            | $3549642706.33          |
| 2025-12-18 | $4019965206.74            | $3172664040.34          |
| 2025-12-19 | $3699635703.68            | $4339982621.72          |
| 2025-12-22 | $5985156181.96            | $2480094996.48          |
| 2025-12-23 | $1765153905.96            | $4299835984.32          |
| 2025-12-24 | $2543785450.71            | $3742262981.46          |
| 2025-12-26 | $2562920263.44            | $3084978073.09          |
| 2025-12-29 | $1620787049.71            | $2074671595.69          |
| 2025-12-30 | $1724387346.31            | $2702479046.60          |
| 2025-12-31 | $1433781826.44            | $2325469740.64          |

**Total Gross Subscriptions (Month):** $57274757780.23

**Total Gross Redemptions (Month):** $58645503003.13

**7-Day Net Yield (Class)**
| Date       | 7-Day Net Yield   |
|:---|:---|
| 2025-12-01 | 4.1200%           |
| 2025-12-02 | 4.1400%           |
| 2025-12-03 | 4.1400%           |
| 2025-12-04 | 4.1500%           |
| 2025-12-05 | 4.1100%           |
| 2025-12-08 | 4.1000%           |
| 2025-12-09 | 4.0900%           |
| 2025-12-10 | 4.0700%           |
| 2025-12-11 | 4.0500%           |
| 2025-12-12 | 3.9600%           |
| 2025-12-15 | 3.9300%           |
| 2025-12-16 | 3.9000%           |
| 2025-12-17 | 3.8800%           |
| 2025-12-18 | 3.8600%           |
| 2025-12-19 | 3.8400%           |
| 2025-12-22 | 3.8300%           |
| 2025-12-23 | 3.8300%           |
| 2025-12-24 | 3.8300%           |
| 2025-12-26 | 3.8400%           |
| 2025-12-29 | 3.8500%           |
| 2025-12-30 | 3.8600%           |
| 2025-12-31 | 3.8900%           |

**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):** $74452599449.81
- **C.18.a - Value (excl. sponsor support):** $74452599449.81
- **C.19 - Percentage of Net Assets:** 100.0000%
- **C.17 - Yield as of Reporting Date:** 0.0000%
- **C.11 - Maturity Date (WAM):** 2026-01-02
- **C.12 - Maturity Date (WAL):** 2026-01-02
- **C.13 - Final Legal Maturity Date:** 2026-01-02
- **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:** 2026-01-07

**By:** /s/ Chuck Pulsfort

**Name of Signing Officer:** Chuck Pulsfort

**Title of Signing Officer:** Assistant Treasurer