# EDGAR Filing Document

**Accession Number:** 0000927972
**File Stem:** 0001133228-26-006190
**Filing Date:** 2026-4
**Character Count:** 18255
**Document Hash:** 318579d7fa375b560379cfa124df82b2
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001133228-26-006190.hdr.sgml**: 20260423

**ACCESSION NUMBER**: 0001133228-26-006190

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260423

**DATE AS OF CHANGE**: 20260423

**EFFECTIVENESS DATE**: 20260423

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MASSMUTUAL PREMIER FUNDS
- **CENTRAL INDEX KEY:** 0000927972

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-82366
- **FILM NUMBER:** 26889439

**BUSINESS ADDRESS:**
- **STREET 1:** 1295 STATE STREET
- **CITY:** SPRINGFIELD
- **STATE:** MA
- **ZIP:** 01111
- **BUSINESS PHONE:** 413-744-1000

**MAIL ADDRESS:**
- **STREET 1:** 1295 STATE STREET
- **CITY:** SPRINGFIELD
- **STATE:** MA
- **ZIP:** 01111

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DLB FUND GROUP
- **DATE OF NAME CHANGE:** 19940804

## Series and Classes Contracts Data

### MassMutual Global Fund (Series ID: S000003778)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MGFAX         | C000010479 |
| Administrative Class | MGFLX         | C000010480 |
| Class R3             | MGFNX         | C000010481 |
| Class R5             | MGFSX         | C000010482 |
| Service Class        | MGFYX         | C000010483 |
| Class R4             | MGFRX         | C000137068 |
| Class I              | MGFZX         | C000137069 |
| Class Y              | MMOCX         | C000241047 |

---

### MML Barings High Yield Fund (Series ID: S000003779)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MPHAX         | C000010484 |
| Administrative Class | MPHLX         | C000010485 |
| Class R3             | MPHNX         | C000010486 |
| Class R5             | MPHSX         | C000010487 |
| Service Class        | DLHYX         | C000010488 |
| Class I              | MPHZX         | C000098420 |
| Class R4             | MPHRX         | C000137070 |
| Class Y              | BXHYX         | C000229373 |
| Class C              | BXHCX         | C000229374 |
| Class M2             | MPHUX         | C000271047 |
| Class M1             | MPHVX         | C000271048 |

---

### MML Barings Inflation-Protected and Income Fund (Series ID: S000003780)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MPSAX         | C000010489 |
| Administrative Class | MIPLX         | C000010490 |
| Class R3             | MIPNX         | C000010491 |
| Class R5             | MIPSX         | C000010492 |
| Service Class        | MIPYX         | C000010493 |
| Class I              | MIPZX         | C000098421 |
| Class R4             | MIPRX         | C000137071 |
| Class Y              | MMODX         | C000241048 |
| Class M1             | MMOPX         | C000271049 |
| Class M2             | MMOOX         | C000271050 |

---

### MML Barings Short-Duration Bond Fund (Series ID: S000003785)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MSHAX         | C000010513 |
| Administrative Class | MSTLX         | C000010514 |
| Class R3             | MSDNX         | C000010515 |
| Class R5             | MSTDX         | C000010516 |
| Service Class        | MSBYX         | C000010517 |
| Class I              | MSTZX         | C000095043 |
| Class R4             | MPSDX         | C000137077 |
| Class Y              | BXDYX         | C000229375 |
| Class C              | BXDCX         | C000229376 |
| Class L              | BXDLX         | C000229377 |
| Class M2             | BXDMX         | C000271051 |
| Class M1             | BXDNX         | C000271052 |

---

### MassMutual Small Cap Opportunities Fund (Series ID: S000003788)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | DLBMX         | C000010528 |
| Administrative Class | MSCLX         | C000010529 |
| Class R5             | MSCDX         | C000010531 |
| Service Class        | MSVYX         | C000010532 |
| Class R4             | MOORX         | C000137078 |
| Class I              | MSOOX         | C000137079 |
| Class R3             | MCCRX         | C000137080 |
| Class Y              | MMOGX         | C000241051 |

---

### MML Barings Core Bond Fund (Series ID: S000003791)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MMCBX         | C000010543 |
| Administrative Class | MCBLX         | C000010544 |
| Class R3             | MCBNX         | C000010545 |
| Class R5             | MCBDX         | C000010546 |
| Service Class        | MCBYX         | C000010547 |
| Class I              | MCZZX         | C000095044 |
| Class R4             | MCZRX         | C000137083 |
| Class Y              | MMNWX         | C000241052 |
| Class M2             | MMCAX         | C000271053 |
| Class M1             | MMCDX         | C000271054 |

---

### MML Barings Diversified Bond Fund (Series ID: S000003793)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A              | MDVAX         | C000010553 |
| Administrative Class | MDBLX         | C000010554 |
| Class R5             | MDBSX         | C000010556 |
| Service Class        | MDBYX         | C000010557 |
| Class I              | MDBZX         | C000095045 |
| Class R4             | MDBFX         | C000137084 |
| Class R3             | MDBRX         | C000137085 |
| Class Y              | MMOBX         | C000241053 |
| Class M1             | MMEFX         | C000271055 |
| Class M2             | MMOKX         | C000271056 |

---

## Series and Classes Contracts Data

### MassMutual Global Fund (Series ID: S000003778)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010479 | Class A              | MGFAX           |
| C000010480 | Administrative Class | MGFLX           |
| C000010481 | Class R3             | MGFNX           |
| C000010482 | Class R5             | MGFSX           |
| C000010483 | Service Class        | MGFYX           |
| C000137068 | Class R4             | MGFRX           |
| C000137069 | Class I              | MGFZX           |
| C000241047 | Class Y              | MMOCX           |

### MML Barings High Yield Fund (Series ID: S000003779)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010484 | Class A              | MPHAX           |
| C000010485 | Administrative Class | MPHLX           |
| C000010486 | Class R3             | MPHNX           |
| C000010487 | Class R5             | MPHSX           |
| C000010488 | Service Class        | DLHYX           |
| C000098420 | Class I              | MPHZX           |
| C000137070 | Class R4             | MPHRX           |
| C000229373 | Class Y              | BXHYX           |
| C000229374 | Class C              | BXHCX           |
| C000271047 | Class M2             | MPHUX           |
| C000271048 | Class M1             | MPHVX           |

### MML Barings Inflation-Protected and Income Fund (Series ID: S000003780)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010489 | Class A              | MPSAX           |
| C000010490 | Administrative Class | MIPLX           |
| C000010491 | Class R3             | MIPNX           |
| C000010492 | Class R5             | MIPSX           |
| C000010493 | Service Class        | MIPYX           |
| C000098421 | Class I              | MIPZX           |
| C000137071 | Class R4             | MIPRX           |
| C000241048 | Class Y              | MMODX           |
| C000271049 | Class M1             | MMOPX           |
| C000271050 | Class M2             | MMOOX           |

### MML Barings Short-Duration Bond Fund (Series ID: S000003785)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010513 | Class A              | MSHAX           |
| C000010514 | Administrative Class | MSTLX           |
| C000010515 | Class R3             | MSDNX           |
| C000010516 | Class R5             | MSTDX           |
| C000010517 | Service Class        | MSBYX           |
| C000095043 | Class I              | MSTZX           |
| C000137077 | Class R4             | MPSDX           |
| C000229375 | Class Y              | BXDYX           |
| C000229376 | Class C              | BXDCX           |
| C000229377 | Class L              | BXDLX           |
| C000271051 | Class M2             | BXDMX           |
| C000271052 | Class M1             | BXDNX           |

### MassMutual Small Cap Opportunities Fund (Series ID: S000003788)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010528 | Class A              | DLBMX           |
| C000010529 | Administrative Class | MSCLX           |
| C000010531 | Class R5             | MSCDX           |
| C000010532 | Service Class        | MSVYX           |
| C000137078 | Class R4             | MOORX           |
| C000137079 | Class I              | MSOOX           |
| C000137080 | Class R3             | MCCRX           |
| C000241051 | Class Y              | MMOGX           |

### MML Barings Core Bond Fund (Series ID: S000003791)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010543 | Class A              | MMCBX           |
| C000010544 | Administrative Class | MCBLX           |
| C000010545 | Class R3             | MCBNX           |
| C000010546 | Class R5             | MCBDX           |
| C000010547 | Service Class        | MCBYX           |
| C000095044 | Class I              | MCZZX           |
| C000137083 | Class R4             | MCZRX           |
| C000241052 | Class Y              | MMNWX           |
| C000271053 | Class M2             | MMCAX           |
| C000271054 | Class M1             | MMCDX           |

### MML Barings Diversified Bond Fund (Series ID: S000003793)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000010553 | Class A              | MDVAX           |
| C000010554 | Administrative Class | MDBLX           |
| C000010556 | Class R5             | MDBSX           |
| C000010557 | Service Class        | MDBYX           |
| C000095045 | Class I              | MDBZX           |
| C000137084 | Class R4             | MDBFX           |
| C000137085 | Class R3             | MDBRX           |
| C000241053 | Class Y              | MMOBX           |
| C000271055 | Class M1             | MMEFX           |
| C000271056 | Class M2             | MMOKX           |

#### MASSMUTUAL FUNDS<br>

#### MML Barings Inflation-Protected and Income Fund<br>

#### MML Barings Core Bond Fund<br>

#### MML Barings Diversified Bond Fund<br>

#### MassMutual Small Cap Opportunities Fund<br>

#### MassMutual Global Fund<br>

#### Supplement dated April 23, 2026 to the<br>

#### Statement of Additional Information dated February 1, 2026
This supplement provides new and additional information beyond that contained in the Statement of Additional Information ("SAI") and any previous supplements. It should be retained and read in conjunction with the SAI and any previous supplements.

*Effective immediately, the ticker symbol for Class R3 shares of the **MML Barings Diversified Bond Fund** found on page B-1 is hereby replaced by MDBRX.* 

*Effective immediately, the following information for **Douglas Steele** supplements the information found on page B-57 under the heading **Interested Trustees** in the section titled **Management of the Trust**:* 

---

| | |
|:---|:---|
| **Douglas Steele<sup>5</sup>**<br>**1295 State Street**<br>**Springfield, MA 01111-0001**<br>**Year of birth: 1975**<br>**Trustee of the Trust since 2026**<br>**Officer of the Trust since 2016**<br>**Trustee and Officer of 55 portfolios in fund complex** | Trustee and President of the Trust |

---

Director (since 2026), President (since 2024), Head of MassMutual Investments (2024), Vice President (2017-2024), Interim Head of MassMutual Investments (2023-2024), Head of Product Management (2021-2024), Head of Manager Research (2021), Head of Investment Management (2017-2021), MML Advisers; Head of MassMutual Investments (since 2024), Interim Head of MassMutual Investments (2023-2024), Head of Product Management (2021-2024), Head of Manager Research (2021), Head of Investment Management (2017-2021), MassMutual; Trustee (since 2026), President (since 2024), Vice President (2016-2024), MassMutual Select Funds (open-end investment company); Trustee (since 2026), President (since 2024), Vice President (2016-2024), MassMutual Premier Funds (open-end investment company); Trustee (since 2026), President (since 2024), Vice President (2021-2024), MassMutual Advantage Funds (open-end investment company); Trustee (since 2026), President (since 2024), Vice President (2016-2024), MML Series Investment Fund (open-end investment company); Trustee (since 2026), President (since 2024), Vice President (2016-2024), MML Series Investment Fund II (open-end investment company).

<sup>5</sup> Mr. Steele is an "Interested Person," as that term is defined in the 1940 Act, as an employee of MassMutual.

*Effective immediately, the following information for **Douglas Steele** replaces the information found on page B-59 under the heading **Principal Officers** in the section titled **Management of the Trust**:* 

---

| | |
|:---|:---|
| **Douglas Steele**<br>**1295 State Street**<br>**Springfield, MA 01111-0001**<br>**Year of birth: 1975**<br>**Trustee of the Trust since 2026**<br>**Officer of the Trust since 2016**<br>**Trustee and Officer of 55 portfolios in fund complex** | Trustee and President of the Trust |

---

For Mr. Steele's biography, please refer to the section above titled "Interested Trustees."

*Effective immediately, the following information supplements the information found on pages B-60 and B-61 under the heading **Additional Information About the Trustees** in the section titled **Management of the Trust**:* 

***Douglas Steele — As an executive, director, and consultant for insurance and financial services companies with over 25 years' experience, Mr. Steele has experience with financial, regulatory, and operational issues. Mr. Steele is a CFA charterholder and holds a BA from Bates College. Mr. Steele also has FINRA Series 6, 7, 24, 26, and 63 registrations.***

#### PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

#### PREMSAI-26-04<br>

------

#### MASSMUTUAL FUNDS<br>

#### MML Barings Short-Duration Bond Fund<br>

#### MML Barings High Yield Fund<br>

#### Supplement dated April 23, 2026 to the<br>

#### Statement of Additional Information dated February 1, 2026
This supplement provides new and additional information beyond that contained in the Statement of Additional Information ("SAI") and any previous supplements. It should be retained and read in conjunction with the SAI and any previous supplements.

*Effective immediately, the following information for **Douglas Steele** supplements the information found on page B-57 under the heading **Interested Trustees** in the section titled **Management of the Trust**:* 

---

| | |
|:---|:---|
| **Douglas Steele<sup>5</sup>**<br>**1295 State Street**<br>**Springfield, MA 01111-0001**<br>**Year of birth: 1975**<br>**Trustee of the Trust since 2026**<br>**Officer of the Trust since 2016**<br>**Trustee and Officer of 55 portfolios in fund complex** | Trustee and President of the Trust |

---

Director (since 2026), President (since 2024), Head of MassMutual Investments (2024), Vice President (2017-2024), Interim Head of MassMutual Investments (2023-2024), Head of Product Management (2021-2024), Head of Manager Research (2021), Head of Investment Management (2017-2021), MML Advisers; Head of MassMutual Investments (since 2024), Interim Head of MassMutual Investments (2023-2024), Head of Product Management (2021-2024), Head of Manager Research (2021), Head of Investment Management (2017-2021), MassMutual; Trustee (since 2026), President (since 2024), Vice President (2016-2024), MassMutual Select Funds (open-end investment company); Trustee (since 2026), President (since 2024), Vice President (2016-2024), MassMutual Premier Funds (open-end investment company); Trustee (since 2026), President (since 2024), Vice President (2021-2024), MassMutual Advantage Funds (open-end investment company); Trustee (since 2026), President (since 2024), Vice President (2016-2024), MML Series Investment Fund (open-end investment company); Trustee (since 2026), President (since 2024),Vice President (2016-2024), MML Series Investment Fund II (open-end investment company).

5<br> Mr. Steele is an "Interested Person," as that term is defined in the 1940 Act, as an employee of MassMutual.

*Effective immediately, the following information for **Douglas Steele** replaces the information found on page B-59 under the heading **Principal Officers** in the section titled **Management of the Trust**:* 

---

| | |
|:---|:---|
| **Douglas Steele**<br>**1295 State Street**<br>**Springfield, MA 01111-0001**<br>**Year of birth: 1975**<br>**Trustee of the Trust since 2026**<br>**Officer of the Trust since 2016**<br>**Trustee and Officer of 55 portfolios in fund complex** | Trustee and President of the Trust |

---

For Mr. Steele's biography, please refer to the section above titled "Interested Trustees."

*Effective immediately, the following information supplements the information found on pages B-60 and B-61 under the heading **Additional Information About the Trustees** in the section titled **Management of the Trust**:* 

***Douglas Steele — As an executive, director, and consultant for insurance and financial services companies with over 25 years' experience, Mr. Steele has experience with financial, regulatory, and operational issues. Mr. Steele is a CFA charterholder and holds a BA from Bates College. Mr. Steele also has FINRA Series 6, 7, 24, 26, and 63 registrations.***

#### PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

#### SAPREMSAI-26-02 <br>