# EDGAR Filing Document

**Accession Number:** 0000201801
**File Stem:** 0001623632-25-001562
**Filing Date:** 2025-11
**Character Count:** 32438
**Document Hash:** 070b172bbda650709e2417cb2232df6b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001623632-25-001562.hdr.sgml**: 20251105

**ACCESSION NUMBER**: 0001623632-25-001562

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 11

**FILED AS OF DATE**: 20251105

**DATE AS OF CHANGE**: 20251105

**EFFECTIVENESS DATE**: 20251105

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Federated Hermes Municipal Bond Fund, Inc.
- **CENTRAL INDEX KEY:** 0000201801

**ORGANIZATION NAME:**
- **EIN:** 251304971
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-57181
- **FILM NUMBER:** 251454380

**BUSINESS ADDRESS:**
- **STREET 1:** 4000 ERICSSON DRIVE
- **CITY:** WARRENDALE
- **STATE:** PA
- **ZIP:** 15086-7561
- **BUSINESS PHONE:** 8003417400

**MAIL ADDRESS:**
- **STREET 1:** 4000 ERICSSON DRIVE
- **CITY:** WARRENDALE
- **STATE:** PA
- **ZIP:** 15086-7561

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FEDERATED MUNICIPAL BOND FUND INC
- **DATE OF NAME CHANGE:** 20170728

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FEDERATED MUNICIPAL SECURITIES FUND INC
- **DATE OF NAME CHANGE:** 19960307

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LIBERTY MUNICIPAL SECURITIES FUND INC
- **DATE OF NAME CHANGE:** 19930517

## Series and Classes Contracts Data

### Federated Hermes Municipal Bond Fund, Inc. (Series ID: S000009070)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Class A Shares       | LMSFX         | C000024642 |
| Class C Shares       | LMSCX         | C000024644 |
| Class F Shares       | LMFFX         | C000051334 |
| Institutional Shares | LMBIX         | C000191101 |

---

## Series and Classes Contracts Data

### Federated Hermes Municipal Bond Fund, Inc. (Series ID: S000009070)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000024642 | Class A Shares       | LMSFX           |
| C000024644 | Class C Shares       | LMSCX           |
| C000051334 | Class F Shares       | LMFFX           |
| C000191101 | Institutional Shares | LMBIX           |

?xml version='1.0' encoding='ASCII'? EDGAR HTML

Federated Hermes Municipal Bond Fund, Inc.

**A Portfolio of Federated Hermes Municipal Bond Fund, Inc.**

**CLASS A SHARES (TICKER LMSFX)**

**CLASS C SHARES (TICKER LMSCX)**

**CLASS F SHARES (TICKER LMFFX)**

**INSTITUTIONAL SHARES (TICKER LMBIX)**

------

**SUPPLEMENT TO PROSPECTUS AND STATEMENT OF ADDITIONAL INFORMAtiON DATED MAY 31, 2025**

1. In the Prospectus under the section entitled "**Risk/Return Summary:** "**Fees and Expenses**," please delete and replace the "**Fee Table**" and "**Example**" in their entirety with the following:

**RISK/RETURN SUMMARY: Fees and Expenses**

This table describes the fees and expenses that you may pay if you buy, hold and sell Class A Shares (A), Class C Shares (C), Class F Shares (F) or Institutional Shares (IS) of the Fund. **You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.** You may qualify for certain sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in certain classes (e.g., A and F classes, respectively) of Federated Hermes funds. More information about these and other discounts is available from your financial professional, in the "**What Do Shares Cost?**" section of the Prospectus on page 19 and in "Appendix B" to this Prospectus.

**Shareholder Fees (fees paid directly from your investment)** 

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **A** | **C** | **F** | **IS** |
| Maximum Sales Charge (Load) | &nbsp;&nbsp; 4.50% | &nbsp;&nbsp; 1.00% | &nbsp;&nbsp; 2.00% |  |
| Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) | &nbsp;&nbsp; 4.50% |  | &nbsp;&nbsp; 1.00% |  |
| Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable) | &nbsp;&nbsp; 0.00% | &nbsp;&nbsp; 1.00% | &nbsp;&nbsp; 1.00% |  |
| Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price) |  |  |  |  |
| Redemption Fee (as a percentage of amount redeemed, if applicable) |  |  |  |  |
| Exchange Fee |  |  |  |  |

---

------

**Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)** 

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **A** | **C** | **F** | **IS** |
| Management Fee | &nbsp;&nbsp; 0.47% | &nbsp;&nbsp; 0.47% | &nbsp;&nbsp; 0.47% | &nbsp;&nbsp; 0.47% |
| Distribution (12b-1) Fee |  | &nbsp;&nbsp; 0.75% |  |  |
| Other Expenses<sup>1</sup> | &nbsp;&nbsp; 0.69% | &nbsp;&nbsp; 0.69% | &nbsp;&nbsp; 0.69% | &nbsp;&nbsp; 0.44% |
| Interest Expense<sup>1</sup> | &nbsp;&nbsp; 0.15% | &nbsp;&nbsp; 0.15% | &nbsp;&nbsp; 0.15% | &nbsp;&nbsp; 0.15% |
| Other Operating Expenses | &nbsp;&nbsp; 0.54% | &nbsp;&nbsp; 0.54% | &nbsp;&nbsp; 0.54% | &nbsp;&nbsp; 0.29% |
| Total Annual Fund Operating Expenses<sup>1</sup> | &nbsp;&nbsp; 1.16% | &nbsp;&nbsp; 1.91% | &nbsp;&nbsp; 1.16% | &nbsp;&nbsp; 0.91% |
| Fee Waivers and/or Expense Reimbursements<sup>2</sup> | &nbsp;&nbsp; (0.18)% | &nbsp;&nbsp; (0.18)% | &nbsp;&nbsp; (0.18)% | &nbsp;&nbsp; (0.18)% |
| Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements<sup>1</sup> | &nbsp;&nbsp; 0.98% | &nbsp;&nbsp; 1.73% | &nbsp;&nbsp; 0.98% | &nbsp;&nbsp; 0.73% |

---

Other Expenses, Interest Expense, Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

have been restated to reflect expenses expected to be incurred in the current fiscal year.

The Adviser and certain of its affiliates on their own initiative have agreed to waive certain amounts of their respective fees and/or reimburse expenses. Total annual fund

operating expenses (excluding acquired fund fees and expenses, interest expense, extraordinary expenses and proxy-related expenses, if any) paid by the Fund's A, C, F

and IS classes (after the voluntary waivers and/or reimbursements) will not exceed 0.83%, 1.58%, 0.83% and 0.58% (the "Fee Limit"), respectively, up to but not including

the later of (the "Termination Date"): (a) December 1, 2026; or (b) the date of the Fund's next effective Prospectus. While the Adviser and its affiliates currently do not anticipate terminating or increasing these arrangements prior to the Termination Date, these arrangements may only be terminated or the Fee Limit increased prior to the Termination Date with the approval of the Fund's Board of Directors.

------

**Example**

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 for the time periods indicated and then redeem all of your Shares at the end of those periods. Expenses assuming no redemption are also shown. The Example also assumes that your investment has a 5% return each year and that operating expenses remain the same. The Example does not reflect sales charges (loads) on reinvested dividends. If these sales charges (loads) were included, your costs would be higher. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Share Class** | **1 Year** | **3 Years** | **5 Years** | **10 Years** |
| **A:** |  |  |  |  |
| Expenses assuming redemption | &nbsp;&nbsp; $563 | &nbsp;&nbsp; $802 | &nbsp;&nbsp; $1060 | &nbsp;&nbsp; $1796 |
| Expenses assuming no redemption | &nbsp;&nbsp; $563 | &nbsp;&nbsp; $802 | &nbsp;&nbsp; $1060 | &nbsp;&nbsp; $1796 |
| **C:** |  |  |  |  |
| Expenses assuming redemption | &nbsp;&nbsp; $294 | &nbsp;&nbsp; $600 | &nbsp;&nbsp; $1032 | &nbsp;&nbsp; $2038 |
| Expenses assuming no redemption | &nbsp;&nbsp; $194 | &nbsp;&nbsp; $600 | &nbsp;&nbsp; $1032 | &nbsp;&nbsp; $2038 |
| **F:** |  |  |  |  |
| Expenses assuming redemption | &nbsp;&nbsp; $317 | &nbsp;&nbsp; $565 | &nbsp;&nbsp; $732 | &nbsp;&nbsp; $1495 |
| Expenses assuming no redemption | &nbsp;&nbsp; $217 | &nbsp;&nbsp; $465 | &nbsp;&nbsp; $732 | &nbsp;&nbsp; $1495 |
| **IS:** |  |  |  |  |
| Expenses assuming redemption | &nbsp;&nbsp; $93 | &nbsp;&nbsp; $290 | &nbsp;&nbsp; $504 | &nbsp;&nbsp; $1120 |
| Expenses assuming no redemption | &nbsp;&nbsp; $93 | &nbsp;&nbsp; $290 | &nbsp;&nbsp; $504 | &nbsp;&nbsp; $1120 |

---

2. Lee R. Cunningham II will retire on April 1, 2026. Effective upon his retirement, Mr. Cunningham will no longer serve as a portfolio manager of the Fund. Accordingly, effective April 1, 2026, please remove all references to Mr. Cunningham.

Effective December 31, 2025, R.J. Gallo, CFA, no longer serves as a portfolio manager of the Fund. Accordingly, effective December 31, 2025, please remove all references to Mr. Gallo.

Effective December 31, 2025, Ann Ferentino, CFA, will serve as a portfolio manager of the Fund.

------

In the Prospectus under the section entitled "**Fund Summary Information**" in the sub-section entitled "**Fund Management**," please add the information for Ms. Ferentino:

"Ann Ferentino, Senior Portfolio Manager, has been the Fund's portfolio manager since December of 2025."

In the section entitled "**Portfolio Management Information**," please add the information for Ms. Ferentino:

**"Ann Ferentino**

Ann Ferentino, CFA, Senior Portfolio Manager, has been the Fund's portfolio manager since December of 2025.

Ms. Ferentino is Co-Head of the Municipal Bonds Group. She is responsible for overseeing the macro risk elements in the portfolio. She has been with the Adviser or an affiliate since 1995; has worked in investment management since 2000; and has managed investment portfolios since 2013. Education: B.S., University of Dayton; M.B.A., University of Pittsburgh."

3. In the Prospectus in "**Appendix A: Hypothetical Investment and Expense Information**," please delete and replace the tables in their entirety with the following:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–A CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–A CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–A CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–A CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–A CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–A CLASS**  |
| **ANNUAL EXPENSE RATIO: 1.16%** | **ANNUAL EXPENSE RATIO: 1.16%** | **ANNUAL EXPENSE RATIO: 1.16%** | **ANNUAL EXPENSE RATIO: 1.16%** | **ANNUAL EXPENSE RATIO: 1.16%** | **ANNUAL EXPENSE RATIO: 1.16%** |
| **MAXIMUM FRONT-END SALES CHARGE: 4.50%** | **MAXIMUM FRONT-END SALES CHARGE: 4.50%** | **MAXIMUM FRONT-END SALES CHARGE: 4.50%** | **MAXIMUM FRONT-END SALES CHARGE: 4.50%** | **MAXIMUM FRONT-END SALES CHARGE: 4.50%** | **MAXIMUM FRONT-END SALES CHARGE: 4.50%** |
| **Year** | **Hypothetical**<br> **Beginning** <br> **Investment**<br>| **Hypothetical** <br> **Performance** <br> **Earnings**<br>| **Investment** <br> **After**<br> **Returns**<br>| **Hypothetical** <br> **Expenses**<br>| **Hypothetical** <br> **Ending**<br> **Investment**<br>|
| 1 | &nbsp;&nbsp; $10000.00  | &nbsp;&nbsp; $477.50  | &nbsp;&nbsp; $10027.50  | &nbsp;&nbsp; $562.91  | &nbsp;&nbsp; $9916.72  |
| 2 | &nbsp;&nbsp; $9916.72  | &nbsp;&nbsp; $495.84  | &nbsp;&nbsp; $10412.56  | &nbsp;&nbsp; $117.24  | &nbsp;&nbsp; $10297.52  |
| 3 | &nbsp;&nbsp; $10297.52  | &nbsp;&nbsp; $514.88  | &nbsp;&nbsp; $10812.40  | &nbsp;&nbsp; $121.74  | &nbsp;&nbsp; $10692.94  |
| 4 | &nbsp;&nbsp; $10692.94  | &nbsp;&nbsp; $534.65  | &nbsp;&nbsp; $11227.59  | &nbsp;&nbsp; $126.42  | &nbsp;&nbsp; $11103.55  |
| 5 | &nbsp;&nbsp; $11103.55  | &nbsp;&nbsp; $555.18  | &nbsp;&nbsp; $11658.73  | &nbsp;&nbsp; $131.27  | &nbsp;&nbsp; $11529.93  |
| 6 | &nbsp;&nbsp; $11529.93  | &nbsp;&nbsp; $576.50  | &nbsp;&nbsp; $12106.43  | &nbsp;&nbsp; $136.32  | &nbsp;&nbsp; $11972.68  |
| 7 | &nbsp;&nbsp; $11972.68  | &nbsp;&nbsp; $598.63  | &nbsp;&nbsp; $12571.31  | &nbsp;&nbsp; $141.55  | &nbsp;&nbsp; $12432.43  |
| 8 | &nbsp;&nbsp; $12432.43  | &nbsp;&nbsp; $621.62  | &nbsp;&nbsp; $13054.05  | &nbsp;&nbsp; $146.99  | &nbsp;&nbsp; $12909.84  |
| 9 | &nbsp;&nbsp; $12909.84  | &nbsp;&nbsp; $645.49  | &nbsp;&nbsp; $13555.33  | &nbsp;&nbsp; $152.63  | &nbsp;&nbsp; $13405.58  |
| 10 | &nbsp;&nbsp; $13405.58  | &nbsp;&nbsp; $670.28  | &nbsp;&nbsp; $14075.86  | &nbsp;&nbsp; $158.49  | &nbsp;&nbsp; $13920.35  |
| Cumulative |  | &nbsp;&nbsp; $5690.57  |  | &nbsp;&nbsp; $1795.56  |  |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–C CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–C CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–C CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–C CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–C CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–C CLASS**  |
| **ANNUAL EXPENSE RATIO: 1.91%** | **ANNUAL EXPENSE RATIO: 1.91%** | **ANNUAL EXPENSE RATIO: 1.91%** | **ANNUAL EXPENSE RATIO: 1.91%** | **ANNUAL EXPENSE RATIO: 1.91%** | **ANNUAL EXPENSE RATIO: 1.91%** |
| **MAXIMUM FRONT-END SALES CHARGE: NONE** | **MAXIMUM FRONT-END SALES CHARGE: NONE** | **MAXIMUM FRONT-END SALES CHARGE: NONE** | **MAXIMUM FRONT-END SALES CHARGE: NONE** | **MAXIMUM FRONT-END SALES CHARGE: NONE** | **MAXIMUM FRONT-END SALES CHARGE: NONE** |
| **Year** | **Hypothetical** <br> **Beginning** <br> **Investment**<br>| **Hypothetical** <br> **Performance** <br> **Earnings**<br>| **Investment** <br> **After Returns**<br>| **Hypothetical** <br> **Expenses**<br>| **Hypothetical** <br> **Ending** <br> **Investment**<br>|
| 1 | &nbsp;&nbsp; $10000.00  | &nbsp;&nbsp; $500.00  | &nbsp;&nbsp; $10500.00  | &nbsp;&nbsp; $193.95  | &nbsp;&nbsp; $10309.00  |
| 2 | &nbsp;&nbsp; $10309.00  | &nbsp;&nbsp; $515.45  | &nbsp;&nbsp; $10824.45  | &nbsp;&nbsp; $199.94  | &nbsp;&nbsp; $10627.55  |
| 3 | &nbsp;&nbsp; $10627.55  | &nbsp;&nbsp; $531.38  | &nbsp;&nbsp; $11158.93  | &nbsp;&nbsp; $206.12  | &nbsp;&nbsp; $10955.94  |
| 4 | &nbsp;&nbsp; $10955.94  | &nbsp;&nbsp; $547.80  | &nbsp;&nbsp; $11503.74  | &nbsp;&nbsp; $212.49  | &nbsp;&nbsp; $11294.48  |
| 5 | &nbsp;&nbsp; $11294.48  | &nbsp;&nbsp; $564.72  | &nbsp;&nbsp; $11859.20  | &nbsp;&nbsp; $219.06  | &nbsp;&nbsp; $11643.48  |
| 6 | &nbsp;&nbsp; $11643.48  | &nbsp;&nbsp; $582.17  | &nbsp;&nbsp; $12225.65  | &nbsp;&nbsp; $225.83  | &nbsp;&nbsp; $12003.26  |
| 7 | &nbsp;&nbsp; $12003.26  | &nbsp;&nbsp; $600.16  | &nbsp;&nbsp; $12603.42  | &nbsp;&nbsp; $232.80  | &nbsp;&nbsp; $12374.16  |
| 8 | &nbsp;&nbsp; $12374.16  | &nbsp;&nbsp; $618.71  | &nbsp;&nbsp; $12992.87  | &nbsp;&nbsp; $240.00  | &nbsp;&nbsp; $12756.52  |
| **Converts from Class C to Class A** | **Converts from Class C to Class A** |  |  | **Annual Expense Ratio: 1.16%** | **Annual Expense Ratio: 1.16%** |
| 9 | &nbsp;&nbsp; $12756.52  | &nbsp;&nbsp; $637.83  | &nbsp;&nbsp; $13394.35  | &nbsp;&nbsp; $150.82  | &nbsp;&nbsp; $13246.37  |
| 10 | &nbsp;&nbsp; $13246.37  | &nbsp;&nbsp; $662.32  | &nbsp;&nbsp; $13908.69  | &nbsp;&nbsp; $156.61  | &nbsp;&nbsp; $13755.03  |
| Cumulative |  | &nbsp;&nbsp; $5760.54  |  | &nbsp;&nbsp; $2037.62  |  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–F CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–F CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–F CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–F CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–F CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–F CLASS**  |
| **ANNUAL EXPENSE RATIO: 1.16%** | **ANNUAL EXPENSE RATIO: 1.16%** | **ANNUAL EXPENSE RATIO: 1.16%** | **ANNUAL EXPENSE RATIO: 1.16%** | **ANNUAL EXPENSE RATIO: 1.16%** | **ANNUAL EXPENSE RATIO: 1.16%** |
| **MAXIMUM FRONT-END SALES CHARGE: 1.00%** | **MAXIMUM FRONT-END SALES CHARGE: 1.00%** | **MAXIMUM FRONT-END SALES CHARGE: 1.00%** | **MAXIMUM FRONT-END SALES CHARGE: 1.00%** | **MAXIMUM FRONT-END SALES CHARGE: 1.00%** | **MAXIMUM FRONT-END SALES CHARGE: 1.00%** |
| **Year** | **Hypothetical**<br> **Beginning** <br> **Investment**<br>| **Hypothetical** <br> **Performance** <br> **Earnings**<br>| **Investment** <br> **After**<br> **Returns**<br>| **Hypothetical** <br> **Expenses**<br>| **Hypothetical** <br> **Ending**<br> **Investment**<br>|
| 1 | &nbsp;&nbsp; $10000.00  | &nbsp;&nbsp; $495.00  | &nbsp;&nbsp; $10395.00  | &nbsp;&nbsp; $217.04  | &nbsp;&nbsp; $10280.16  |
| 2 | &nbsp;&nbsp; $10280.16  | &nbsp;&nbsp; $514.01  | &nbsp;&nbsp; $10794.17  | &nbsp;&nbsp; $121.54  | &nbsp;&nbsp; $10674.92  |
| 3 | &nbsp;&nbsp; $10674.92  | &nbsp;&nbsp; $533.75  | &nbsp;&nbsp; $11208.67  | &nbsp;&nbsp; $126.21  | &nbsp;&nbsp; $11084.84  |
| 4 | &nbsp;&nbsp; $11084.84  | &nbsp;&nbsp; $554.24  | &nbsp;&nbsp; $11639.08  | &nbsp;&nbsp; $131.05  | &nbsp;&nbsp; $11510.50  |
| 5 | &nbsp;&nbsp; $11510.50  | &nbsp;&nbsp; $575.53  | &nbsp;&nbsp; $12086.03  | &nbsp;&nbsp; $136.09  | &nbsp;&nbsp; $11952.50  |
| 6 | &nbsp;&nbsp; $11952.50  | &nbsp;&nbsp; $597.63  | &nbsp;&nbsp; $12550.13  | &nbsp;&nbsp; $141.31  | &nbsp;&nbsp; $12411.48  |
| 7 | &nbsp;&nbsp; $12411.48  | &nbsp;&nbsp; $620.57  | &nbsp;&nbsp; $13032.05  | &nbsp;&nbsp; $146.74  | &nbsp;&nbsp; $12888.08  |
| 8 | &nbsp;&nbsp; $12888.08  | &nbsp;&nbsp; $644.40  | &nbsp;&nbsp; $13532.48  | &nbsp;&nbsp; $152.37  | &nbsp;&nbsp; $13382.98  |
| 9 | &nbsp;&nbsp; $13382.98  | &nbsp;&nbsp; $669.15  | &nbsp;&nbsp; $14052.13  | &nbsp;&nbsp; $158.22  | &nbsp;&nbsp; $13896.89  |
| 10 | &nbsp;&nbsp; $13896.89  | &nbsp;&nbsp; $694.84  | &nbsp;&nbsp; $14591.73  | &nbsp;&nbsp; $164.30  | &nbsp;&nbsp; $14430.53  |
| Cumulative |  | &nbsp;&nbsp; $5899.12  |  | &nbsp;&nbsp; $1494.87  |  |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–IS CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–IS CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–IS CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–IS CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–IS CLASS**  | **FEDERATED HERMES MUNICIPAL BOND FUND, INC.–IS CLASS**  |
| **ANNUAL EXPENSE RATIO: 0.91%** | **ANNUAL EXPENSE RATIO: 0.91%** | **ANNUAL EXPENSE RATIO: 0.91%** | **ANNUAL EXPENSE RATIO: 0.91%** | **ANNUAL EXPENSE RATIO: 0.91%** | **ANNUAL EXPENSE RATIO: 0.91%** |
| **MAXIMUM FRONT-END SALES CHARGE: NONE** | **MAXIMUM FRONT-END SALES CHARGE: NONE** | **MAXIMUM FRONT-END SALES CHARGE: NONE** | **MAXIMUM FRONT-END SALES CHARGE: NONE** | **MAXIMUM FRONT-END SALES CHARGE: NONE** | **MAXIMUM FRONT-END SALES CHARGE: NONE** |
| **Year** | **Hypothetical**<br> **Beginning** <br> **Investment**<br>| **Hypothetical** <br> **Performance** <br> **Earnings**<br>| **Investment** <br> **After**<br> **Returns**<br>| **Hypothetical** <br> **Expenses**<br>| **Hypothetical** <br> **Ending**<br> **Investment**<br>|
| 1 | &nbsp;&nbsp; $10000.00  | &nbsp;&nbsp; $500.00  | &nbsp;&nbsp; $10500.00  | &nbsp;&nbsp; $92.86  | &nbsp;&nbsp; $10409.00  |
| 2 | &nbsp;&nbsp; $10409.00  | &nbsp;&nbsp; $520.45  | &nbsp;&nbsp; $10929.45  | &nbsp;&nbsp; $96.66  | &nbsp;&nbsp; $10834.73  |
| 3 | &nbsp;&nbsp; $10834.73  | &nbsp;&nbsp; $541.74  | &nbsp;&nbsp; $11376.47  | &nbsp;&nbsp; $100.61  | &nbsp;&nbsp; $11277.87  |
| 4 | &nbsp;&nbsp; $11277.87  | &nbsp;&nbsp; $563.89  | &nbsp;&nbsp; $11841.76  | &nbsp;&nbsp; $104.73  | &nbsp;&nbsp; $11739.13  |
| 5 | &nbsp;&nbsp; $11739.13  | &nbsp;&nbsp; $586.96  | &nbsp;&nbsp; $12326.09  | &nbsp;&nbsp; $109.01  | &nbsp;&nbsp; $12219.26  |
| 6 | &nbsp;&nbsp; $12219.26  | &nbsp;&nbsp; $610.96  | &nbsp;&nbsp; $12830.22  | &nbsp;&nbsp; $113.47  | &nbsp;&nbsp; $12719.03  |
| 7 | &nbsp;&nbsp; $12719.03  | &nbsp;&nbsp; $635.95  | &nbsp;&nbsp; $13354.98  | &nbsp;&nbsp; $118.11  | &nbsp;&nbsp; $13239.24  |
| 8 | &nbsp;&nbsp; $13239.24  | &nbsp;&nbsp; $661.96  | &nbsp;&nbsp; $13901.20  | &nbsp;&nbsp; $122.94  | &nbsp;&nbsp; $13780.72  |
| 9 | &nbsp;&nbsp; $13780.72  | &nbsp;&nbsp; $689.04  | &nbsp;&nbsp; $14469.76  | &nbsp;&nbsp; $127.97  | &nbsp;&nbsp; $14344.35  |
| 10 | &nbsp;&nbsp; $14344.35  | &nbsp;&nbsp; $717.22  | &nbsp;&nbsp; $15061.57  | &nbsp;&nbsp; $133.20  | &nbsp;&nbsp; $14931.03  |
| Cumulative |  | &nbsp;&nbsp; $6028.17  |  | &nbsp;&nbsp; $1119.56  |  |

---

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

4. In the Statement of Additional Information under the heading entitled "**Who Manages and Provides Services to the Fund?**," please add the following information for Ms. Ferentino:

"The following information about the Fund's portfolio manager is provided as of September 30, 2025.

**Ann Ferentino, Portfolio Manager** 

---

| | |
|:---|:---|
| **Types of Accounts Managed** <br> **by Ann Ferentino**<br>| &nbsp;&nbsp;&nbsp; **Total Number of Additional**<br> **Accounts Managed/Total Assets\***<br>|
| Registered Investment Companies | 5/$3.4 billion |
| Other Pooled Investment Vehicles | 0/$0 |
| Other Accounts | 2/$12.2 million |

---

\*

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*None of the Accounts has an advisory fee that is based on the performance of the account.*

*Dollar value range of shares owned in the Fund: None.*

Ann Ferentino is paid a fixed base salary and a variable annual incentive. Base salary is determined within a market competitive, position-specific salary range, based on the portfolio manager's experience and performance. The annual incentive amount is determined based primarily on Investment Product Performance (IPP) and may also include a discretionary component based on a variety of factors deemed relevant, such as financial measures and performance and may be paid entirely in cash, or in a combination of cash and restricted stock of Federated Hermes, Inc. ("Federated Hermes"). The total combined annual incentive opportunity is intended to be competitive in the market for this portfolio manager role.

IPP is measured on a rolling one, three and five calendar year pre-tax gross total return basis versus the Fund's representative performance index (i.e., S&P Municipal 52.5% AAA&AA-rated / 27.5% A-rated / 12.5% BBB-rated / 7.5% High Yield, 3 years and longer maturity index) and the Fund's designated peer group of comparable accounts. Performance periods are adjusted if a portfolio manager has been managing an account for less than five years; accounts with less than one year of performance history under a portfolio manager may be excluded. Effective April 1, 2023, the Adviser ceased using a supplemental index, the S&P Municipal Bond 3-Year Plus Index, to calculate IPP because the Adviser believes that the former supplemental index no longer appropriately reflects the market sectors in which the Fund invests.

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As noted above, Ms. Ferentino is also the portfolio manager for other accounts in addition to the Fund. Such other accounts may have different benchmarks and performance measures. The allocation or weighting given to the performance of the Fund or other accounts for which Ms. Ferentino is responsible when her compensation is calculated may be equal or can vary.

For purposes of calculating the annual incentive amount, each account managed by the portfolio manager currently is categorized into one of three IPP groups (which may be adjusted periodically). Within each performance measurement period and IPP group, IPP currently is calculated on the basis of an assigned weighting to each account managed by the portfolio manager and included in the IPP groups. At the account level, the weighting assigned to the Fund is lesser than or equal to the weighting assigned to certain other accounts, used to determine IPP (but can be adjusted periodically). A portion of the bonus tied to the IPP score may be adjusted based on management's assessment of overall contributions to account performance and any other factors as deemed relevant.

Any individual allocations from the discretionary pool may be determined, by executive management on a discretionary basis using various factors, such as, for example, on a product, strategy or asset class basis, and considering overall contributions and any other factors deemed relevant (and may be adjusted periodically).

In addition, Ms. Ferentino was awarded a grant of restricted Federated Hermes stock. Awards of restricted stock are discretionary and are made in variable amounts based on the subjective judgment of Federated Hermes' senior management."

November 5, 2025

![](fhilogok11p.jpg)

Federated Hermes Municipal Bond Fund, Inc.

Federated Hermes Funds

4000 Ericsson Drive

Warrendale, PA 15086-7561

Contact us at **FederatedHermes.com/us**

or call 1-800-341-7400.

Federated Securities Corp., Distributor

*Q457131 (11/25)*© 2025 Federated Hermes, Inc.

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Federated Hermes Municipal Bond Fund, Inc.

**A Portfolio of Federated Hermes Municipal Bond Fund, Inc.**

**CLASS A SHARES (TICKER LMSFX)**

**CLASS C SHARES (TICKER LMSCX)**

**CLASS F SHARES (TICKER LMFFX)**

**INSTITUTIONAL SHARES (TICKER LMBIX)**

------

**SUPPLEMENT TO SUMMARY PROSPECTUS DATED MAY 31, 2025**

1. Under the section entitled "**Risk/Return Summary: "Fees and Expenses**," please delete and replace the "**Fee Table**" and "**Example**" in their entirety with the following:

**RISK/RETURN SUMMARY: Fees and Expenses**

This table describes the fees and expenses that you may pay if you buy, hold and sell Class A Shares (A), Class C Shares (C), Class F Shares (F) or Institutional Shares (IS) of the Fund. **You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.** You may qualify for certain sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in certain classes (e.g., A and F classes, respectively) of Federated Hermes funds. More information about these and other discounts is available from your financial professional, in the "**What Do Shares Cost?**" section of the Prospectus on page 19 and in "Appendix B" to this Prospectus.

**Shareholder Fees (fees paid directly from your investment)** 

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **A** | **C** | **F** | **IS** |
| Maximum Sales Charge (Load) | 4.50% | 1.00% | 2.00% |  |
| Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of <br> offering price) <br>| 4.50% |  | 1.00% |  |
| Maximum Deferred Sales Charge (Load) (as a percentage of original <br> purchase price or redemption proceeds, as applicable) <br>| 0.00% | 1.00% | 1.00% |  |
| Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other <br> Distributions) (as a percentage of offering price) <br>|  |  |  |  |
| Redemption Fee (as a percentage of amount redeemed, if applicable) |  |  |  |  |
| Exchange Fee |  |  |  |  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

------

**Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)** 

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **A** | **C** | **F** | **IS** |
| Management Fee | 0.47% | 0.47% | 0.47% | 0.47% |
| Distribution (12b-1) Fee |  | 0.75% |  |  |
| Other Expenses<sup>1</sup> | 0.69% | 0.69% | 0.69% | 0.44% |
| Interest Expense<sup>1</sup> | 0.15% | 0.15% | 0.15% | 0.15% |
| Other Operating Expenses | 0.54% | 0.54% | 0.54% | 0.29% |
| Total Annual Fund Operating Expenses<sup>1</sup> | 1.16% | 1.91% | 1.16% | 0.91% |
| Fee Waivers and/or Expense Reimbursements<sup>2</sup> | (0.18)% | (0.18)% | (0.18)% | (0.18)% |
| Total Annual Fund Operating Expenses After Fee Waivers and/or <br> Expense Reimbursements<sup>1</sup><br>| 0.98% | 1.73% | 0.98% | 0.73% |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

Other Expenses, Interest Expense, Total Annual Fund Operating Expenses and Total Annual Fund

Operating Expenses After Fee Waivers and/or Expense Reimbursements have been restated to reflect

expenses expected to be incurred in the current fiscal year.

The Adviser and certain of its affiliates on their own initiative have agreed to waive certain amounts of

their respective fees and/or reimburse expenses. Total annual fund operating expenses (excluding

acquired fund fees and expenses, interest expense, extraordinary expenses and proxy-related expenses, if

any) paid by the Fund's A, C, F and IS classes (after the voluntary waivers and/or reimbursements) will not

exceed 0.83%, 1.58%, 0.83% and 0.58% (the "Fee Limit"), respectively, up to but not including the later

of (the "Termination Date"): (a) December 1, 2026; or (b) the date of the Fund's next effective Prospectus.

While the Adviser and its affiliates currently do not anticipate terminating or increasing these

arrangements prior to the Termination Date, these arrangements may only be terminated or the Fee Limit

increased prior to the Termination Date with the approval of the Fund's Board of Directors.

------

**Example**

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 for the time periods indicated and then redeem all of your Shares at the end of those periods. Expenses assuming no redemption are also shown. The Example also assumes that your investment has a 5% return each year and that operating expenses remain the same. The Example does not reflect sales charges (loads) on reinvested dividends. If these sales charges (loads) were included, your costs would be higher. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Share Class** | **1 Year** | **3 Years** | **5 Years** | **10 Years** |
| **A:** |  |  |  |  |
| Expenses assuming redemption | &nbsp;&nbsp; $563 | &nbsp;&nbsp; $802 | &nbsp;&nbsp; $1060 | &nbsp;&nbsp; $1796 |
| Expenses assuming no redemption | &nbsp;&nbsp; $563 | &nbsp;&nbsp; $802 | &nbsp;&nbsp; $1060 | &nbsp;&nbsp; $1796 |
| **C:** |  |  |  |  |
| Expenses assuming redemption | &nbsp;&nbsp; $294 | &nbsp;&nbsp; $600 | &nbsp;&nbsp; $1032 | &nbsp;&nbsp; $2038 |
| Expenses assuming no redemption | &nbsp;&nbsp; $194 | &nbsp;&nbsp; $600 | &nbsp;&nbsp; $1032 | &nbsp;&nbsp; $2038 |
| **F:** |  |  |  |  |
| Expenses assuming redemption | &nbsp;&nbsp; $317 | &nbsp;&nbsp; $565 | &nbsp;&nbsp; $732 | &nbsp;&nbsp; $1495 |
| Expenses assuming no redemption | &nbsp;&nbsp; $217 | &nbsp;&nbsp; $465 | &nbsp;&nbsp; $732 | &nbsp;&nbsp; $1495 |
| **IS:** |  |  |  |  |
| Expenses assuming redemption | &nbsp;&nbsp; $93 | &nbsp;&nbsp; $290 | &nbsp;&nbsp; $504 | &nbsp;&nbsp; $1120 |
| Expenses assuming no redemption | &nbsp;&nbsp; $93 | &nbsp;&nbsp; $290 | &nbsp;&nbsp; $504 | &nbsp;&nbsp; $1120 |

---

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

2. Lee R. Cunningham II will retire on April 1, 2026. Effective upon his retirement, Mr. Cunningham will no longer serve as a portfolio manager of the Fund. Accordingly, effective April 1, 2026, please remove all references to Mr. Cunningham.

Effective December 31, 2025, R.J. Gallo, CFA, no longer serves as a portfolio manager of the Fund. Accordingly, effective December 31, 2025, please remove all references to Mr. Gallo.

Effective December 31, 2025, Ann Ferentino, CFA, will serve as a portfolio manager of the Fund.

Under the section entitled "**Fund Summary Information**" in the sub-section entitled "**Fund Management**," please add the following information for Ms. Ferentino:

"Ann Ferentino, Senior Portfolio Manager, has been the Fund's portfolio manager since December of 2025."

November 5, 2025

![](fhilogok11p.jpg)

Federated Hermes Municipal Bond Fund, Inc.

Federated Hermes Funds

4000 Ericsson Drive

Warrendale, PA 15086-7561

Contact us at **FederatedHermes.com/us**

or call 1-800-341-7400.

Federated Securities Corp., Distributor

*Q457130 (11/25)*© 2025 Federated Hermes, Inc.

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