# EDGAR Filing Document

**Accession Number:** 0000277751
**File Stem:** 0001193125-25-144793
**Filing Date:** 2025-6
**Character Count:** 67417
**Document Hash:** 921c7fbc731a17cd47bcc973d92a492c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-144793.hdr.sgml**: 20250624

**ACCESSION NUMBER**: 0001193125-25-144793

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20250624

**DATE AS OF CHANGE**: 20250623

**EFFECTIVENESS DATE**: 20250624

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** JANUS INVESTMENT FUND
- **CENTRAL INDEX KEY:** 0000277751

**ORGANIZATION NAME:**
- **EIN:** 840592523
- **STATE OF INCORPORATION:** MA

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-34393
- **FILM NUMBER:** 251066176

**BUSINESS ADDRESS:**
- **STREET 1:** 151 DETROIT STREET
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80206
- **BUSINESS PHONE:** 303-333-3863

**MAIL ADDRESS:**
- **STREET 1:** 151 DETROIT STREET
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80206

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** JANUS FUND /MD/
- **DATE OF NAME CHANGE:** 19870701

## Series and Classes Contracts Data

### Janus Henderson Responsible International Dividend Fund (Series ID: S000057607)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000183943 | Class A      | HDAVX           |
| C000183944 | Class C      | HDCVX           |
| C000183945 | Class D      | HDDVX           |
| C000183946 | Class I      | HDIVX           |
| C000183947 | Class N      | HDRVX           |
| C000183949 | Class S      | HDQVX           |
| C000183950 | Class T      | HDTVX           |

[JANUS HENDERSON LOGO]

**Janus Henderson International Dividend Fund**

(formerly Janus Henderson Responsible International Dividend Fund)

Ticker: HDAVX Class A Shares HDQVX Class S Shares HDRVX Class N Shares <br> HDCVX Class C Shares HDIVX Class I Shares HDTVX Class T Shares

**Summary Prospectus dated June 24, 2025**

***Before you invest, you may want to review the Fund's Prospectus, which contains more information about the Fund and its risks. You can find the Fund's Prospectus, reports to shareholders, and other information about the Fund online at janushenderson.com/info. You can also get this information at no cost by calling a Janus Henderson representative at 1-877-335-2687 or by sending an email request to prospectusrequest@janushenderson.com.***

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**Investment Objectives**<br>

**Janus Henderson International Dividend Fund** seeks income with the potential for capital growth over the long-term.

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

**Fees and Expenses of the Fund**<br>

This table describes the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund. Each share class has different expenses, but represents an investment in the same Fund. For Class A Shares, you may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund or in other Janus Henderson funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial professional and in the "Purchases" section on page 34 of the Fund's Prospectus and in the "Purchases" section on page 52 of the Fund's Statement of Additional Information. In addition, please see Appendix A – Intermediary Sales Charge Waivers and Discounts. You may also incur brokerage commissions charged by your broker or financial intermediary when buying Class I Shares or Class N Shares of the Fund that are not reflected in the table or in the example below.

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **SHAREHOLDER FEES**<br> (fees paid directly from your investment)<br>| **Class A** | **Class C** | **Class S** | **Class I** | **Class N** | **Class T** |
| &nbsp;&nbsp;&nbsp;&nbsp; Maximum Sales Charge (load) Imposed on Purchases (as a percentage of offering <br> price)<br>| 5.75% |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Maximum Deferred Sales Charge (load) (as a percentage of the lower of original <br> purchase price or redemption proceeds)<br>|  | 1.00% |  |  |  |  |
| **ANNUAL FUND OPERATING EXPENSES**<br> (expenses that you pay each year as a percentage of the value of your investment)<br>| **Class A** | **Class C** | **Class S** | **Class I** | **Class N** | **Class T** |
| Management Fees | 0.75% | 0.75% | 0.75% | 0.75% | 0.75% | 0.75% |
| Distribution/Service (12b-1) Fees | 0.25% | 1.00% | 0.25% |  |  |  |
| Other Expenses | 0.32% | 0.35% | 3.49% | 0.34% | 0.28% | 0.55% |
| Total Annual Fund Operating Expenses | 1.32% | 2.10% | 4.49% | 1.09% | 1.03% | 1.30% |
| Fee Waiver and/or Expense Reimbursement<sup>(1)</sup> <br>| 0.16% | 0.19% | 3.14% | 0.16% | 0.19% | 0.21% |
| &nbsp;&nbsp;&nbsp;&nbsp; Total Annual Fund Operating Expenses After Fee Waiver and/or Expense <br> Reimbursement<sup>(1)</sup> <br>| 1.16% | 1.91% | 1.35% | 0.93% | 0.84% | 1.09% |

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(1) The Adviser has contractually agreed to waive its investment advisory fee and/or reimburse operating expenses to the extent that the Fund's total annual fund operating expenses (excluding the fees payable pursuant to a Rule 12b-1 plan, shareholder servicing fees, out-of-pocket transfer agency/shareholder servicing costs, including networking/omnibus/shareholder servicing fees payable by any share class, acquired fund fees and expenses, interest, dividends, taxes, brokerage commissions, and extraordinary expenses) exceed 0.84% for at least a one-year period commencing on June 24, 2025. This contractual waiver may be terminated or modified only at the discretion of the Board of Trustees.

**EXAMPLE:**

The 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 in the Fund for the time periods indicated and reinvest all dividends and distributions. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses are equal to the Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement for the first year and the Total Annual Fund Operating Expenses thereafter. Class C Shares automatically convert to Class A Shares

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after eight years. The Example for Class C Shares for the ten-year period reflects the conversion to Class A Shares. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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| | | | | |
|:---|:---|:---|:---|:---|
| **If Shares are redeemed:** | **1 Year** | **3 Years** | **5 Years** | **10 Years** |
| Class A Shares | &nbsp;&nbsp; $686 | &nbsp;&nbsp; $954 | &nbsp;&nbsp; $1242 | &nbsp;&nbsp; $2061 |
| Class C Shares | &nbsp;&nbsp; $294 | &nbsp;&nbsp; $640 | &nbsp;&nbsp; $1111 | &nbsp;&nbsp; $2217 |
| Class S Shares | &nbsp;&nbsp; $137 | &nbsp;&nbsp; $1073 | &nbsp;&nbsp; $2018 | &nbsp;&nbsp; $4423 |
| Class I Shares | &nbsp;&nbsp; $95 | &nbsp;&nbsp; $331 | &nbsp;&nbsp; $585 | &nbsp;&nbsp; $1314 |
| Class N Shares | &nbsp;&nbsp; $86 | &nbsp;&nbsp; $309 | &nbsp;&nbsp; $550 | &nbsp;&nbsp; $1242 |
| Class T Shares | &nbsp;&nbsp; $111 | &nbsp;&nbsp; $391 | &nbsp;&nbsp; $693 | &nbsp;&nbsp; $1549 |

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| | | | | |
|:---|:---|:---|:---|:---|
| **If Shares are not redeemed:** | **1 Year** | **3 Years** | **5 Years** | **10 Years** |
| Class A Shares | &nbsp;&nbsp; $686 | &nbsp;&nbsp; $954 | &nbsp;&nbsp; $1242 | &nbsp;&nbsp; $2061 |
| Class C Shares | &nbsp;&nbsp; $194 | &nbsp;&nbsp; $640 | &nbsp;&nbsp; $1111 | &nbsp;&nbsp; $2217 |
| Class S Shares | &nbsp;&nbsp; $137 | &nbsp;&nbsp; $1073 | &nbsp;&nbsp; $2018 | &nbsp;&nbsp; $4423 |
| Class I Shares | &nbsp;&nbsp; $95 | &nbsp;&nbsp; $331 | &nbsp;&nbsp; $585 | &nbsp;&nbsp; $1314 |
| Class N Shares | &nbsp;&nbsp; $86 | &nbsp;&nbsp; $309 | &nbsp;&nbsp; $550 | &nbsp;&nbsp; $1242 |
| Class T Shares | &nbsp;&nbsp; $111 | &nbsp;&nbsp; $391 | &nbsp;&nbsp; $693 | &nbsp;&nbsp; $1549 |

---

**Portfolio Turnover:** The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 32% of the average value of its portfolio.

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

**Principal investment strategies**<br>

The Fund pursues its investment objective by investing, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in a portfolio of dividend-producing equity securities. The Fund generally invests in a core group of 40-60 equity securities, including common stocks, preferred stocks, depository receipts, and other equity-related securities.

The Fund primarily invests in equity securities of companies that are economically tied to countries outside of the United States, including investments in emerging markets. A security is deemed to be economically tied to a country or countries outside of the United States if one or more of the following tests are met: (i) the company is organized in, or its primary business office or principal trading market of its equity is located in, the country; (ii) a majority of the company's revenues are derived from one or more countries outside of the United States; or (iii) a majority of the company's assets are located in one or more countries outside of the United States. The Fund's investments may be in non-U.S. currency or U.S. dollar-denominated.

In selecting investments for the Fund, portfolio management seeks to identify equity securities of companies with attractive long-term business prospects that generate profits and produce attractive levels of dividend income. Although the Fund does not have a specific policy regarding the growth/value orientation or market capitalization of the companies in which it invests, portfolio management believes that focusing on dividend-producing equity securities will tend to lead to investments in mid-to-large capitalization "value" stocks (stocks of well-established, undervalued companies that portfolio management believes offer the potential for income and long-term capital appreciation). Portfolio management may, however, invest in smaller and less seasoned issuers and in stocks that are considered "growth" stocks.

As part of its investment process, portfolio management considers environmental, social, and governance ("ESG") risks and opportunities ("ESG Factors") that it believes are financially material, alongside other fundamental investment factors. Examples of potential financially material ESG Factors include: corporate governance, company culture, exposure to climate change, and human capital management. To assess ESG Factors, portfolio management uses issuer reports, third-party data, and internally-generated analyses and may engage directly with issuers. ESG Factors are one of many considerations in the investment decision-making process, may not be determinative in deciding to include or exclude an investment from the portfolio, and may not be considered for every investment decision.

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The Fund will generally consider selling a security when, in portfolio management's opinion, there is a risk of significant deterioration in the company's fundamentals, there is a change in business strategy or issuer-specific business outlook that affects the original investment case, or if a superior investment opportunity arises. The Fund will also consider selling a security if, in portfolio management's opinion, the company's business model no longer meets the investment criteria employed in managing the Fund.

The Fund may invest its assets in derivatives, which are instruments that have a value derived from, or directly linked to, an underlying asset, such as equity securities, fixed-income securities, commodities, currencies, interest rates, or market indices, as substitutes for securities in which the Fund invests or to hedge portfolio risk. In particular, the Fund may invest in derivatives such as forward currency contracts to offset risks associated with currency exposure.

The Fund may seek to earn additional income through lending its securities to certain qualified broker-dealers and institutions, in an amount equal to up to one-third of its total assets as determined at the time of the loan origination.

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

**Principal investment risks**<br>

The biggest risk is that the Fund's returns will vary, and you could lose money. The Fund is designed for long-term investors seeking an equity portfolio, including common stocks. The Fund's investment strategies could result in significant fluctuations of dividend income. The principal risks associated with investing in the Fund are set forth below.

***Market Risk.*** The value of the Fund's portfolio may decrease due to short-term market movements and over more prolonged market downturns. As a result, the Fund's net asset value may fluctuate and it may be more difficult to value or sell the Fund's holdings. Market risk may affect a single issuer, industry, economic sector, or the market as a whole. Market risk may be magnified if certain social, political, economic, and other conditions and events (such as financial institution failures, economic recessions, tariffs, trade disputes, terrorism, war, armed conflicts, including related sanctions, social unrest, natural disasters, and epidemics and pandemics) adversely interrupt the global economy and financial markets. It is important to understand that the value of your investment may fall, sometimes sharply, in response to changes in the market, and you could lose money.

***Foreign Exposure Risk.*** Foreign markets can be more volatile than the U.S. market. As a result, the Fund's returns and net asset value may be affected by fluctuations in currency exchange rates or political or economic conditions in a particular country. In some foreign markets, there may not be protection against failure by other parties to complete transactions. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. In addition, a market swing in one or more countries or regions where the Fund has invested a significant amount of its assets may have a greater effect on the Fund's performance than it would in a more geographically diversified portfolio.

***Equity Securities Risk.*** Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The value of the Fund's portfolio may decrease if the value of an individual company or security, or multiple companies or securities, in the portfolio decreases. Further, regardless of how well individual companies or securities perform, the value of the Fund's portfolio could also decrease if there are deteriorating economic or market conditions or perceptions regarding the industries in which the issuers of securities the Fund holds participate.

***Issuer Concentration Risk.*** The Fund's portfolio may be comprised of a relatively small number of issuers in comparison to other funds. As a result, the Fund may be subject to greater risks than a fund that invests in a greater number of issuers. A change in the value of any single investment held by the Fund may affect the overall value of the Fund more than it would affect a fund that holds more investments. In particular, the Fund may be more susceptible to adverse developments affecting any single issuer held by the Fund and may be susceptible to greater losses because of these developments.

***Geographic Concentration Risk.*** To the extent the Fund invests a substantial amount of its assets in issuers located in a single country or region, the economic, political, social, regulatory, or other developments or conditions within such country or region will generally have a greater effect on the Fund than they would on a more geographically diversified fund, which may result in greater losses and volatility. Adverse developments in certain regions could also adversely affect securities of other countries whose economies appear to be unrelated and could have a negative impact on the Fund's performance.

• ***Europe Risk.*** The economies and markets of European countries are often closely connected and interdependent. Changes in regulations on trade, decreasing imports or exports, changes in the exchange rate of European currencies, and recessions among European countries may have a significant adverse effect on the economies of other European countries. Europe has,

3 \| Janus Henderson International Dividend Fund

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in certain instances, been susceptible to serious financial hardship, high debt levels, and high levels of unemployment. The markets in Eastern Europe remain relatively undeveloped and can be particularly sensitive to political and economic developments.

***Currency Risk.*** Currency risk is the risk that changes in the exchange rate between currencies will adversely affect the value (in U.S. dollar terms) of an investment. As long as the Fund holds a foreign security, its value will be affected by the value of the local currency relative to the U.S. dollar. When the Fund sells a foreign currency denominated security, its value may be worth less in U.S. dollars even if the security increases in value in its home country. U.S. dollar-denominated securities of foreign issuers may also be affected by currency risk, as the value of these securities may also be affected by changes in the issuer's local currency.

***Dividend-Oriented Stocks Risk.*** Companies that have paid regular dividends to shareholders may decrease or eliminate dividend payments in the future. A decrease in dividend payments by an issuer may result in a decrease in the value of the security held by the Fund or the Fund receiving less income.

***Value Investing Risk.*** Because different types of stocks tend to shift in and out of favor depending on market and economic conditions, "value" stocks may perform differently than other types of stocks and from the market as a whole, and can continue to be undervalued by the market for long periods of time. It is also possible that a value stock will never appreciate to the extent expected.

***Growth Securities Risk.*** Securities of companies perceived to be "growth" companies may be more volatile than other stocks and may involve special risks. If portfolio management's perception of a company's growth potential is not realized, the securities purchased may not perform as expected, reducing the Fund's returns. In addition, because different types of stocks tend to shift in and out of favor depending on market and economic conditions, "growth" stocks may perform differently from other types of securities and the market as a whole.

***Depositary Receipts Risk.*** Depositary receipts are generally subject to the same sort of risks as direct investments in a foreign country, such as currency risk, market risk, and foreign exposure risk, because their values depend on the performance of a foreign security denominated in its home currency.

***Portfolio Management Risk.*** The Fund is an actively managed investment portfolio and is therefore subject to the risk that the investment strategies employed for the Fund may fail to produce the intended results. Accordingly, the Fund may underperform benchmark indices or other funds with similar investment objectives.

***Emerging Markets Risk.*** Emerging market securities involve a number of risks, which may result from less government supervision and regulation of business and industry practices (including the potential lack of strict finance and accounting controls and standards), stock exchanges, brokers, and listed companies. Information about emerging market companies, including financial information, may be less available or reliable and the Adviser's ability to conduct due diligence with respect to such companies may be limited. Accordingly, these investments may be potentially more volatile in price and less liquid than investments in developed securities markets, resulting in greater risk to investors. There is a risk in developing countries that a current or future economic or political crisis could lead to price controls, forced mergers of companies, expropriation or confiscatory taxation, imposition or enforcement of foreign ownership limits, seizure, nationalization, sanctions or imposition of restrictions by various governmental entities on investment and trading, or creation of government monopolies, any of which may have a detrimental effect on the Fund's investments. In addition, the taxation systems at the federal, regional, and local levels in developing or emerging market countries may be less transparent, inconsistently enforced, and subject to change. Emerging markets may be subject to a higher degree of corruption and fraud than developed markets, and financial institutions and transaction counterparties may have less financial sophistication, creditworthiness, and/or resources than participants in developed markets.

***Mid-Sized Companies Risk.*** Investments in securities issued by mid-sized companies may involve greater risks than are customarily associated with larger, more established companies. For example, mid-sized companies may suffer more significant losses as a result of their narrow product lines, limited operating history, greater exposure to competitive threats, limited financial resources, limited trading markets, and the potential lack of management depth. Securities issued by mid-sized companies tend to be more volatile than securities issued by larger or more established companies and may underperform as compared to the securities of larger or more established companies. These holdings are also subject to wider price fluctuations and tend to be less liquid than stocks of larger or more established companies, which could have a significant adverse effect on the Fund's returns, especially as market conditions change.

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***ESG Integration Risk.*** There is a risk that considering ESG Factors as part of the Fund's investment process may fail to produce the intended results or that the Fund may perform differently from funds that have a similar investment style but do not formally incorporate such considerations in their strategy. Information related to ESG Factors provided by issuers and third parties, which portfolio management may utilize, continues to develop and may be incomplete or inaccurate, use different methodologies, or be applied differently across issuers and industries.

***Derivatives Risk.*** Derivatives can be volatile and involve risks in addition to the risks of the underlying referenced securities or asset. Gains or losses from a derivative investment can be substantially greater than the derivative's original cost, and can therefore involve leverage. Leverage may cause the Fund to be more volatile than if it had not used leverage. Derivatives entail the risk that the counterparty may default on its payment obligations. If the counterparty to a derivative transaction defaults, the Fund may lose the net amount of the payments that it contractually is entitled to receive. Derivatives used for hedging purposes may reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated by portfolio management or if the cost of the derivative outweighs the benefit of the hedge.

***Preferred Stock Risk.*** Preferred stock is subject to similar risks as common stock and debt securities. Typically, a rise in interest rates causes a decline in the value of preferred stock. Preferred stocks are also subject to credit risk, which is the possibility that an issuer of preferred stock will fail to make its dividend payments.

***Securities Lending Risk.*** There is the risk that when portfolio securities are lent, the securities may not be returned on a timely basis, and the Fund may experience delays and costs in recovering the security or gaining access to the collateral provided to the Fund to collateralize the loan. If the Fund is unable to recover a security on loan, the Fund may use the collateral to purchase replacement securities in the market. There is a risk that the value of the collateral could decrease below the cost of the replacement security by the time the replacement investment is made, resulting in a loss to the Fund.

*An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.*

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

**Performance information**<br>

The following information provides some indication of the risks of investing in the Fund by showing how the Fund's performance has varied over time. Returns shown for periods prior to June 5, 2017, are those of Henderson Dividend & Income Builder Fund (the "Predecessor Fund"). The Predecessor Fund was advised by Henderson Global Investors (North America) Inc. and subadvised by Henderson Investment Management Limited. Class A Shares, Class C Shares, Class I Shares, and Class R6 Shares of the Predecessor Fund were reorganized into Class A Shares, Class C Shares, Class I Shares, and Class N Shares, respectively, of the Fund on June 2, 2017. Class A Shares, Class C Shares, and Class I Shares of the Predecessor Fund commenced operations with the Predecessor Fund's inception on August 1, 2012. Class R6 Shares of the Predecessor Fund commenced operations on November 30, 2015. Class S Shares and Class T Shares of the Fund commenced operations on June 5, 2017.

• The performance shown for Class A Shares for periods prior to June 5, 2017, reflects the performance of Class A Shares of the Predecessor Fund and is calculated using the fees and expenses of Class A Shares of the Predecessor Fund, in effect during the periods shown, net of any applicable fee and expense limitations or waivers.

• The performance shown for Class C Shares for periods prior to June 5, 2017, reflects the performance of Class C Shares of the Predecessor Fund and is calculated using the fees and expenses of Class C Shares of the Predecessor Fund, in effect during the periods shown, net of any applicable fee and expense limitations or waivers.

• The performance shown for Class I Shares for periods prior to June 5, 2017, reflects the performance of Class I Shares of the Predecessor Fund and is calculated using the fees and expenses of Class I Shares of the Predecessor Fund, in effect during the periods shown, net of any applicable fee and expense limitations or waivers.

• The performance shown for Class N Shares for periods prior to June 5, 2017, reflects the performance of Class R6 Shares of the Predecessor Fund and is calculated using the fees and expenses of Class R6 Shares of the Predecessor Fund, in effect during the periods shown, net of any applicable fee and expense limitations or waivers, except that for periods prior to November 30, 2015, performance shown for Class N Shares reflects the performance of Class I Shares of the Predecessor Fund, calculated using the estimated fees and expenses of Class N Shares, net of any applicable fee and expense limitations or waivers.

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• The performance shown for Class S Shares for periods prior to June 5, 2017, reflects the performance of Class I Shares of the Predecessor Fund, calculated using the estimated fees and expenses of Class S Shares, net of any applicable fee and expense limitations or waivers.

• The performance shown for Class T Shares for periods prior to June 5, 2017, reflects the performance of Class I Shares of the Predecessor Fund, calculated using the estimated fees and expenses of Class T Shares, net of any applicable fee and expense limitations or waivers.

Returns of the Fund will be different from the Predecessor Fund as they have different expenses.

The bar chart depicts the change in performance from year to year during the periods indicated. The bar chart figures do not include any applicable sales charges that an investor may pay when they buy or sell Class A Shares or Class C Shares of the Fund. If sales charges were included, the returns would be lower. The table compares the Fund's average annual returns for the periods indicated to a broad-based securities market index. All figures assume reinvestment of dividends and distributions. For certain periods, the Fund's performance reflects the effect of expense waivers. Without the effect of these expense waivers, the performance shown would have been lower. The Fund changed its investment strategy on October 28, 2022, and again changed its investment strategy on June 24, 2025. Performance prior to June 24, 2025, reflects the Fund's former investment strategies, and its performance may have differed if the Fund's current investment strategy had been in place.

*The Fund's (and the Predecessor Fund's) past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available at janushenderson.com/performance or by calling 1-877-335-2687.* 

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| |
|:---|
| **Annual Total Returns for Class I Shares** (calendar year-end) |
| &nbsp;&nbsp; ![](g868601img1f3f1fd61.jpg)<br>|

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Best Quarter:** | 4th Quarter 2022 | **16.57%** | **Worst Quarter:** | 1st Quarter 2020 | **– 17.82%** |

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Class I Shares' year-to-date return as of the calendar quarter ended March 31, 2025 was 7.47%.

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| | | | | |
|:---|:---|:---|:---|:---|
| **Average Annual Total Returns** (periods ended 12/31/24) |  |  |  |  |
|  | **1 Year** | **5 Years** | **10 Years** | &nbsp;&nbsp; **Since**<br> **Inception**<br> **8/1/12**<br>|
| **Class I Shares** |  |  |  |  |
| Return Before Taxes | &nbsp;&nbsp;&nbsp;&nbsp; 8.88% | &nbsp;&nbsp;&nbsp;&nbsp; 6.65% | &nbsp;&nbsp;&nbsp;&nbsp; 6.43% | &nbsp;&nbsp;&nbsp;&nbsp; 7.44% |
| Return After Taxes on Distributions | &nbsp;&nbsp;&nbsp;&nbsp; 7.52% | &nbsp;&nbsp;&nbsp;&nbsp; 5.75% | &nbsp;&nbsp;&nbsp;&nbsp; 5.65% | &nbsp;&nbsp;&nbsp;&nbsp; 6.61% |
| Return After Taxes on Distributions and Sale of Fund Shares | &nbsp;&nbsp;&nbsp;&nbsp; 6.64% | &nbsp;&nbsp;&nbsp;&nbsp; 5.28% | &nbsp;&nbsp;&nbsp;&nbsp; 5.17% | &nbsp;&nbsp;&nbsp;&nbsp; 6.02% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MSCI World ex-USA Index<sup>SM</sup> <br>(reflects no deduction for expenses, fees, or taxes, except foreign withholding <br> taxes)<br>| &nbsp;&nbsp;&nbsp;&nbsp; 4.70% | &nbsp;&nbsp;&nbsp;&nbsp; 5.10% | &nbsp;&nbsp;&nbsp;&nbsp; 5.26% | &nbsp;&nbsp;&nbsp;&nbsp; 6.45% |

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| | | | | |
|:---|:---|:---|:---|:---|
| **Average Annual Total Returns** (periods ended 12/31/24) |  |  |  |  |
|  | **1 Year** | **5 Years** | **10 Years** | &nbsp;&nbsp; **Since**<br> **Inception**<br> **8/1/12**<br>|
| **Class A Shares** |  |  |  |  |
| Return Before Taxes<sup>(1)</sup> <br>| &nbsp;&nbsp;&nbsp;&nbsp; 2.38% | &nbsp;&nbsp;&nbsp;&nbsp; 5.16% | &nbsp;&nbsp;&nbsp;&nbsp; 5.65% | &nbsp;&nbsp;&nbsp;&nbsp; 6.76% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MSCI World ex-USA Index<sup>SM</sup> <br>(reflects no deduction for expenses, fees, or taxes, except foreign withholding <br> taxes)<br>| &nbsp;&nbsp;&nbsp;&nbsp; 4.70% | &nbsp;&nbsp;&nbsp;&nbsp; 5.10% | &nbsp;&nbsp;&nbsp;&nbsp; 5.26% | &nbsp;&nbsp;&nbsp;&nbsp; 6.45% |
| **Class C Shares** |  |  |  |  |
| Return Before Taxes<sup>(2)</sup> <br>| &nbsp;&nbsp;&nbsp;&nbsp; 6.76% | &nbsp;&nbsp;&nbsp;&nbsp; 5.63% | &nbsp;&nbsp;&nbsp;&nbsp; 5.39% | &nbsp;&nbsp;&nbsp;&nbsp; 6.39% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MSCI World ex-USA Index<sup>SM</sup> <br>(reflects no deduction for expenses, fees, or taxes, except foreign withholding <br> taxes)<br>| &nbsp;&nbsp;&nbsp;&nbsp; 4.70% | &nbsp;&nbsp;&nbsp;&nbsp; 5.10% | &nbsp;&nbsp;&nbsp;&nbsp; 5.26% | &nbsp;&nbsp;&nbsp;&nbsp; 6.45% |
| **Class S Shares** |  |  |  |  |
| Return Before Taxes | &nbsp;&nbsp;&nbsp;&nbsp; 8.62% | &nbsp;&nbsp;&nbsp;&nbsp; 6.57% | &nbsp;&nbsp;&nbsp;&nbsp; 6.22% | &nbsp;&nbsp;&nbsp;&nbsp; 7.18% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MSCI World ex-USA Index<sup>SM</sup> <br>(reflects no deduction for expenses, fees, or taxes, except foreign withholding <br> taxes)<br>| &nbsp;&nbsp;&nbsp;&nbsp; 4.70% | &nbsp;&nbsp;&nbsp;&nbsp; 5.10% | &nbsp;&nbsp;&nbsp;&nbsp; 5.26% | &nbsp;&nbsp;&nbsp;&nbsp; 6.45% |
| **Class N Shares** |  |  |  |  |
| Return Before Taxes | &nbsp;&nbsp;&nbsp;&nbsp; 8.93% | &nbsp;&nbsp;&nbsp;&nbsp; 6.74% | &nbsp;&nbsp;&nbsp;&nbsp; 6.46% | &nbsp;&nbsp;&nbsp;&nbsp; 7.45% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MSCI World ex-USA Index<sup>SM</sup> <br>(reflects no deduction for expenses, fees, or taxes, except foreign withholding <br> taxes)<br>| &nbsp;&nbsp;&nbsp;&nbsp; 4.70% | &nbsp;&nbsp;&nbsp;&nbsp; 5.10% | &nbsp;&nbsp;&nbsp;&nbsp; 5.26% | &nbsp;&nbsp;&nbsp;&nbsp; 6.45% |
| **Class T Shares** |  |  |  |  |
| Return Before Taxes | &nbsp;&nbsp;&nbsp;&nbsp; 8.70% | &nbsp;&nbsp;&nbsp;&nbsp; 6.49% | &nbsp;&nbsp;&nbsp;&nbsp; 6.24% | &nbsp;&nbsp;&nbsp;&nbsp; 7.25% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MSCI World ex-USA Index<sup>SM</sup> <br>(reflects no deduction for expenses, fees, or taxes, except foreign withholding <br> taxes)<br>| &nbsp;&nbsp;&nbsp;&nbsp; 4.70% | &nbsp;&nbsp;&nbsp;&nbsp; 5.10% | &nbsp;&nbsp;&nbsp;&nbsp; 5.26% | &nbsp;&nbsp;&nbsp;&nbsp; 6.45% |

---

(1) Calculated assuming maximum permitted sales loads.

(2) The one year return is calculated to include the contingent deferred sales charge.

The Fund's broad-based benchmark index is the MSCI World ex-USA Index. The index is described below.

• The MSCI World ex-USA Index is designed to measure the equity market performance of developed market countries in North America, Europe, and the Asia/Pacific Region, excluding the United States.

After-tax returns are calculated using distributions for the Predecessor Fund's Class I Shares for the period prior to June 5, 2017. If Class I Shares of the Fund had been available during periods prior to June 5, 2017, the distributions used to calculate the after-tax returns may have been different. After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your individual tax situation and may differ from those shown in the preceding table. The after-tax return information shown above does not apply to Fund shares held through a tax-advantaged account, such as a 401(k) plan or an IRA.

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

**Management**<br>

**Investment Adviser:** Janus Henderson Investors US LLC

**Portfolio Management: Faizan Baig,** CFA, is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since October 2020. **Ben Lofthouse,** CFA, is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since November 2014.

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

7 \| Janus Henderson International Dividend Fund

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**Purchase and sale of Fund shares**<br>

**Minimum Investment Requirements** 

---

| | |
|:---|:---|
| **Class A Shares, Class C Shares**\***, Class S Shares, and Class T Shares** |  |
| Non-retirement accounts | $2,500\*\* |
| Certain tax-advantaged accounts or UTMA accounts | $500 |
| **Class I Shares** |  |
| Through an intermediary institution |  |
| &nbsp;&nbsp;&nbsp;&nbsp; • non-retirement accounts | $2,500<br> †<br>|
| &nbsp;&nbsp;&nbsp;&nbsp; • certain tax-advantaged accounts or UTMA accounts | $500<br> †<br>|
| **Class N Shares** |  |
| Retirement investors (investing through an adviser-assisted, employer-sponsored retirement plan) |  |
| Retail investors (investing through a financial intermediary omnibus account) | $2,500\*\*\* |
| Institutional investors (investing directly with the Fund) | $1000000 |

---

†

Exceptions to these minimums may apply for certain tax-advantaged, tax-qualified and retirement plans, including health savings accounts, accounts held through certain wrap programs, and certain retail brokerage accounts.

\*

The maximum purchase in Class C Shares is $250,000 for any single purchase.

\*\*

Class A, Class C, Class S, and Class T shares held through certain supermarket and/or self-directed brokerage accounts, or through wrap programs, may not be subject to these minimums. Please contact your financial intermediary for more information.

\*\*\*

Investors in certain tax-advantaged accounts or accounts held through certain wrap programs or bank trust platforms may not be subject to this minimum.

Purchases, exchanges, and redemptions can generally be made only through institutional channels, such as financial intermediaries and retirement platforms. You should contact your financial intermediary or refer to your plan documents for information on how to invest in the Fund. Requests must be received in good order by the Fund or its agents (financial intermediary or plan sponsor, if applicable) prior to the close of the trading session of the New York Stock Exchange in order to receive that day's net asset value. For additional information, refer to "Purchases," "Exchanges," and/or "Redemptions" in the Prospectus.

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

**Tax information**<br>

The Fund's distributions are taxable, and will be taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account (in which case you may be taxed upon withdrawal of your investment from such account).

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

**Payments to broker-dealers and other financial intermediaries**<br>

If you purchase Class A Shares, Class C Shares, Class S Shares, Class I Shares, or Class T Shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund or its distributor (or its affiliates) may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment or to recommend one share class over another. Ask your salesperson or visit your financial intermediary's website for more information.

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[JANUS HENDERSON LOGO]

**Janus Henderson International Dividend Fund**

(formerly Janus Henderson Responsible International Dividend Fund)

Ticker: HDDVX Class D Shares

**Summary Prospectus dated June 24, 2025**

***Before you invest, you may want to review the Fund's Prospectus, which contains more information about the Fund and its risks. You can find the Fund's Prospectus, reports to shareholders, and other information about the Fund online at janushenderson.com/reports. You can also get this information at no cost by calling a Janus Henderson representative at 1-800-525-3713 or by sending an email request to prospectusorder@janushenderson.com.***

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**Investment Objectives**<br>

**Janus Henderson International Dividend Fund** seeks income with the potential for capital growth over the long-term.

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

**Fees and Expenses of the Fund**<br>

This table describes the fees and expenses that you may pay if you buy, hold, and sell Shares of the Fund.

---

| | |
|:---|:---|
| **ANNUAL FUND OPERATING EXPENSES**<br> (expenses that you pay each year as a percentage of the value of your investment)<br>| **Class D** |
| Management Fees | 0.75% |
| Other Expenses | 0.48% |
| Total Annual Fund Operating Expenses | 1.23% |
| Fee Waiver and/or Expense Reimbursement<sup>(1)</sup> <br>| 0.25% |
| Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement<sup>(1)</sup> <br>| 0.98% |

---

(1) The Adviser has contractually agreed to waive its investment advisory fee and/or reimburse operating expenses to the extent that the Fund's total annual fund operating expenses (excluding shareholder servicing fees, out-of-pocket transfer agency/shareholder servicing costs, acquired fund fees and expenses, interest, dividends, taxes, brokerage commissions, and extraordinary expenses) exceed 0.84% for at least a one-year period commencing on June 24, 2025. This contractual waiver may be terminated or modified only at the discretion of the Board of Trustees.

**EXAMPLE:**

The 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 in the Fund for the time periods indicated, reinvest all dividends and distributions, and then redeem all of your Shares at the end of each period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses are equal to the Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement for the first year and the Total Annual Fund Operating Expenses thereafter. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **1 Year** | **3 Years** | **5 Years** | **10 Years** |
| Class D Shares | &nbsp;&nbsp; $100 | &nbsp;&nbsp; $366 | &nbsp;&nbsp; $652 | &nbsp;&nbsp; $1467 |

---

**Portfolio Turnover:** The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 32% of the average value of its portfolio.

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

**Principal investment strategies**<br>

The Fund pursues its investment objective by investing, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in a portfolio of dividend-producing equity securities. The Fund generally invests in a core group of 40-60 equity securities, including common stocks, preferred stocks, depository receipts, and other equity-related securities.

The Fund primarily invests in equity securities of companies that are economically tied to countries outside of the United States, including investments in emerging markets. A security is deemed to be economically tied to a country or countries outside of the United States if one or more of the following tests are met: (i) the company is organized in, or its primary business office or principal trading market of its equity is located in, the country; (ii) a majority of the company's revenues are derived from one or more countries outside of the United States; or (iii) a majority of the company's assets are

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located in one or more countries outside of the United States. The Fund's investments may be in non-U.S. currency or U.S. dollar-denominated.

In selecting investments for the Fund, portfolio management seeks to identify equity securities of companies with attractive long-term business prospects that generate profits and produce attractive levels of dividend income. Although the Fund does not have a specific policy regarding the growth/value orientation or market capitalization of the companies in which it invests, portfolio management believes that focusing on dividend-producing equity securities will tend to lead to investments in mid-to-large capitalization "value" stocks (stocks of well-established, undervalued companies that portfolio management believes offer the potential for income and long-term capital appreciation). Portfolio management may, however, invest in smaller and less seasoned issuers and in stocks that are considered "growth" stocks.

As part of its investment process, portfolio management considers environmental, social, and governance ("ESG") risks and opportunities ("ESG Factors") that it believes are financially material, alongside other fundamental investment factors. Examples of potential financially material ESG Factors include: corporate governance, company culture, exposure to climate change, and human capital management. To assess ESG Factors, portfolio management uses issuer reports, third-party data, and internally-generated analyses and may engage directly with issuers. ESG Factors are one of many considerations in the investment decision-making process, may not be determinative in deciding to include or exclude an investment from the portfolio, and may not be considered for every investment decision.

The Fund will generally consider selling a security when, in portfolio management's opinion, there is a risk of significant deterioration in the company's fundamentals, there is a change in business strategy or issuer-specific business outlook that affects the original investment case, or if a superior investment opportunity arises. The Fund will also consider selling a security if, in portfolio management's opinion, the company's business model no longer meets the investment criteria employed in managing the Fund.

The Fund may invest its assets in derivatives, which are instruments that have a value derived from, or directly linked to, an underlying asset, such as equity securities, fixed-income securities, commodities, currencies, interest rates, or market indices, as substitutes for securities in which the Fund invests or to hedge portfolio risk. In particular, the Fund may invest in derivatives such as forward currency contracts to offset risks associated with currency exposure.

The Fund may seek to earn additional income through lending its securities to certain qualified broker-dealers and institutions, in an amount equal to up to one-third of its total assets as determined at the time of the loan origination.

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

**Principal investment risks**<br>

The biggest risk is that the Fund's returns will vary, and you could lose money. The Fund is designed for long-term investors seeking an equity portfolio, including common stocks. The Fund's investment strategies could result in significant fluctuations of dividend income. The principal risks associated with investing in the Fund are set forth below.

***Market Risk.*** The value of the Fund's portfolio may decrease due to short-term market movements and over more prolonged market downturns. As a result, the Fund's net asset value may fluctuate and it may be more difficult to value or sell the Fund's holdings. Market risk may affect a single issuer, industry, economic sector, or the market as a whole. Market risk may be magnified if certain social, political, economic, and other conditions and events (such as financial institution failures, economic recessions, tariffs, trade disputes, terrorism, war, armed conflicts, including related sanctions, social unrest, natural disasters, and epidemics and pandemics) adversely interrupt the global economy and financial markets. It is important to understand that the value of your investment may fall, sometimes sharply, in response to changes in the market, and you could lose money.

***Foreign Exposure Risk.*** Foreign markets can be more volatile than the U.S. market. As a result, the Fund's returns and net asset value may be affected by fluctuations in currency exchange rates or political or economic conditions in a particular country. In some foreign markets, there may not be protection against failure by other parties to complete transactions. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. In addition, a market swing in one or more countries or regions where the Fund has invested a significant amount of its assets may have a greater effect on the Fund's performance than it would in a more geographically diversified portfolio.

***Equity Securities Risk.*** Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The value of the Fund's portfolio may decrease if the value of an individual company or security, or

2 \| Janus Investment Fund

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multiple companies or securities, in the portfolio decreases. Further, regardless of how well individual companies or securities perform, the value of the Fund's portfolio could also decrease if there are deteriorating economic or market conditions or perceptions regarding the industries in which the issuers of securities the Fund holds participate.

***Issuer Concentration Risk.*** The Fund's portfolio may be comprised of a relatively small number of issuers in comparison to other funds. As a result, the Fund may be subject to greater risks than a fund that invests in a greater number of issuers. A change in the value of any single investment held by the Fund may affect the overall value of the Fund more than it would affect a fund that holds more investments. In particular, the Fund may be more susceptible to adverse developments affecting any single issuer held by the Fund and may be susceptible to greater losses because of these developments.

***Geographic Concentration Risk.*** To the extent the Fund invests a substantial amount of its assets in issuers located in a single country or region, the economic, political, social, regulatory, or other developments or conditions within such country or region will generally have a greater effect on the Fund than they would on a more geographically diversified fund, which may result in greater losses and volatility. Adverse developments in certain regions could also adversely affect securities of other countries whose economies appear to be unrelated and could have a negative impact on the Fund's performance.

• ***Europe Risk.*** The economies and markets of European countries are often closely connected and interdependent. Changes in regulations on trade, decreasing imports or exports, changes in the exchange rate of European currencies, and recessions among European countries may have a significant adverse effect on the economies of other European countries. Europe has, in certain instances, been susceptible to serious financial hardship, high debt levels, and high levels of unemployment. The markets in Eastern Europe remain relatively undeveloped and can be particularly sensitive to political and economic developments.

***Currency Risk.*** Currency risk is the risk that changes in the exchange rate between currencies will adversely affect the value (in U.S. dollar terms) of an investment. As long as the Fund holds a foreign security, its value will be affected by the value of the local currency relative to the U.S. dollar. When the Fund sells a foreign currency denominated security, its value may be worth less in U.S. dollars even if the security increases in value in its home country. U.S. dollar-denominated securities of foreign issuers may also be affected by currency risk, as the value of these securities may also be affected by changes in the issuer's local currency.

***Dividend-Oriented Stocks Risk.*** Companies that have paid regular dividends to shareholders may decrease or eliminate dividend payments in the future. A decrease in dividend payments by an issuer may result in a decrease in the value of the security held by the Fund or the Fund receiving less income.

***Value Investing Risk.*** Because different types of stocks tend to shift in and out of favor depending on market and economic conditions, "value" stocks may perform differently than other types of stocks and from the market as a whole, and can continue to be undervalued by the market for long periods of time. It is also possible that a value stock will never appreciate to the extent expected.

***Growth Securities Risk.*** Securities of companies perceived to be "growth" companies may be more volatile than other stocks and may involve special risks. If portfolio management's perception of a company's growth potential is not realized, the securities purchased may not perform as expected, reducing the Fund's returns. In addition, because different types of stocks tend to shift in and out of favor depending on market and economic conditions, "growth" stocks may perform differently from other types of securities and the market as a whole.

***Depositary Receipts Risk.*** Depositary receipts are generally subject to the same sort of risks as direct investments in a foreign country, such as currency risk, market risk, and foreign exposure risk, because their values depend on the performance of a foreign security denominated in its home currency.

***Portfolio Management Risk.*** The Fund is an actively managed investment portfolio and is therefore subject to the risk that the investment strategies employed for the Fund may fail to produce the intended results. Accordingly, the Fund may underperform benchmark indices or other funds with similar investment objectives.

***Emerging Markets Risk.*** Emerging market securities involve a number of risks, which may result from less government supervision and regulation of business and industry practices (including the potential lack of strict finance and accounting controls and standards), stock exchanges, brokers, and listed companies. Information about emerging market companies, including financial information, may be less available or reliable and the Adviser's ability to conduct due diligence with respect to such companies may be limited. Accordingly, these investments may be potentially more volatile in price and less

3 \| Janus Henderson International Dividend Fund

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liquid than investments in developed securities markets, resulting in greater risk to investors. There is a risk in developing countries that a current or future economic or political crisis could lead to price controls, forced mergers of companies, expropriation or confiscatory taxation, imposition or enforcement of foreign ownership limits, seizure, nationalization, sanctions or imposition of restrictions by various governmental entities on investment and trading, or creation of government monopolies, any of which may have a detrimental effect on the Fund's investments. In addition, the taxation systems at the federal, regional, and local levels in developing or emerging market countries may be less transparent, inconsistently enforced, and subject to change. Emerging markets may be subject to a higher degree of corruption and fraud than developed markets, and financial institutions and transaction counterparties may have less financial sophistication, creditworthiness, and/or resources than participants in developed markets.

***Mid-Sized Companies Risk.*** Investments in securities issued by mid-sized companies may involve greater risks than are customarily associated with larger, more established companies. For example, mid-sized companies may suffer more significant losses as a result of their narrow product lines, limited operating history, greater exposure to competitive threats, limited financial resources, limited trading markets, and the potential lack of management depth. Securities issued by mid-sized companies tend to be more volatile than securities issued by larger or more established companies and may underperform as compared to the securities of larger or more established companies. These holdings are also subject to wider price fluctuations and tend to be less liquid than stocks of larger or more established companies, which could have a significant adverse effect on the Fund's returns, especially as market conditions change.

***ESG Integration Risk.*** There is a risk that considering ESG Factors as part of the Fund's investment process may fail to produce the intended results or that the Fund may perform differently from funds that have a similar investment style but do not formally incorporate such considerations in their strategy. Information related to ESG Factors provided by issuers and third parties, which portfolio management may utilize, continues to develop and may be incomplete or inaccurate, use different methodologies, or be applied differently across issuers and industries.

***Derivatives Risk.*** Derivatives can be volatile and involve risks in addition to the risks of the underlying referenced securities or asset. Gains or losses from a derivative investment can be substantially greater than the derivative's original cost, and can therefore involve leverage. Leverage may cause the Fund to be more volatile than if it had not used leverage. Derivatives entail the risk that the counterparty may default on its payment obligations. If the counterparty to a derivative transaction defaults, the Fund may lose the net amount of the payments that it contractually is entitled to receive. Derivatives used for hedging purposes may reduce or eliminate gains or cause losses if the market moves in a manner different from that anticipated by portfolio management or if the cost of the derivative outweighs the benefit of the hedge.

***Preferred Stock Risk.*** Preferred stock is subject to similar risks as common stock and debt securities. Typically, a rise in interest rates causes a decline in the value of preferred stock. Preferred stocks are also subject to credit risk, which is the possibility that an issuer of preferred stock will fail to make its dividend payments.

***Securities Lending Risk.*** There is the risk that when portfolio securities are lent, the securities may not be returned on a timely basis, and the Fund may experience delays and costs in recovering the security or gaining access to the collateral provided to the Fund to collateralize the loan. If the Fund is unable to recover a security on loan, the Fund may use the collateral to purchase replacement securities in the market. There is a risk that the value of the collateral could decrease below the cost of the replacement security by the time the replacement investment is made, resulting in a loss to the Fund.

*An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.*

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

**Performance information**<br>

The following information provides some indication of the risks of investing in the Fund by showing how the Fund's performance has varied over time. Class D Shares of the Fund commenced operations on June 5, 2017. The performance shown for Class D Shares for periods prior to June 5, 2017, reflects the performance of Class I Shares of Henderson Dividend & Income Builder Fund (the "Predecessor Fund"), calculated using the estimated fees and expenses of Class D Shares, net of any applicable fee and expense limitations or waivers. The Predecessor Fund was advised by Henderson Global Investors (North America) Inc. and subadvised by Henderson Investment Management Limited. Class A Shares, Class C Shares, Class I Shares, and Class R6 Shares of the Predecessor Fund were reorganized into Class A Shares, Class C Shares, Class I Shares, and Class N Shares, respectively, of the Fund on June 2, 2017. In connection with this reorganization, certain shareholders of the Predecessor Fund who held shares directly with the Predecessor Fund and not through an intermediary had the Class A

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Shares, Class C Shares, Class I Shares, and Class N Shares of the Fund received in the merger automatically exchanged for Class D Shares of the Fund following the merger. If Class D Shares of the Fund had been available during periods prior to June 5, 2017, the performance shown may have been different because the Fund and the Predecessor Fund have different expenses. The performance shown for the periods following the Fund's commencement of Class D Shares reflects the fees and expenses of Class D Shares, net of any applicable fee and expense limitations or waivers.

The bar chart depicts the change in performance from year to year during the periods indicated. The table compares the Fund's average annual returns for the periods indicated to a broad-based securities market index. All figures assume reinvestment of dividends and distributions. For certain periods, the Fund's performance reflects the effect of expense waivers. Without the effect of these expense waivers, the performance shown would have been lower. The Fund changed its investment strategy on October 28, 2022, and again changed its investment strategy on June 24, 2025. Performance prior to June 24, 2025, reflects the Fund's former investment strategies, and its performance may have differed if the Fund's current investment strategy had been in place.

*The Fund's (and the Predecessor Fund's) past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available at janushenderson.com/allfunds or by calling 1-800-525-3713.* 

---

| |
|:---|
| **Annual Total Returns for Class D Shares** (calendar year-end) |
| &nbsp;&nbsp; ![](g912488img4ac7aeac1.jpg)<br>|

---

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

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Best Quarter:** | 4th Quarter 2022 | **16.70%** | **Worst Quarter:** | 1st Quarter 2020 | **– 17.86%** |

---

Class D Shares' year-to-date return as of the calendar quarter ended March 31, 2025 was 7.48%.

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Average Annual Total Returns** (periods ended 12/31/24) |  |  |  |  |
|  | **1 Year** | **5 Years** | **10 Years** | &nbsp;&nbsp; **Since**<br> **Inception**<br> **8/1/12**<br>|
| **Class D Shares** |  |  |  |  |
| Return Before Taxes | &nbsp;&nbsp;&nbsp;&nbsp; 8.77% | &nbsp;&nbsp;&nbsp;&nbsp; 6.59% | &nbsp;&nbsp;&nbsp;&nbsp; 6.35% | &nbsp;&nbsp;&nbsp;&nbsp; 7.36% |
| Return After Taxes on Distributions | &nbsp;&nbsp;&nbsp;&nbsp; 7.42% | &nbsp;&nbsp;&nbsp;&nbsp; 5.70% | &nbsp;&nbsp;&nbsp;&nbsp; 5.56% | &nbsp;&nbsp;&nbsp;&nbsp; 6.52% |
| Return After Taxes on Distributions and Sale of Fund Shares | &nbsp;&nbsp;&nbsp;&nbsp; 6.57% | &nbsp;&nbsp;&nbsp;&nbsp; 5.24% | &nbsp;&nbsp;&nbsp;&nbsp; 5.09% | &nbsp;&nbsp;&nbsp;&nbsp; 5.95% |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MSCI World ex-USA Index<sup>SM</sup> <br>(reflects no deduction for expenses, fees, or taxes, except foreign withholding <br> taxes)<br>| &nbsp;&nbsp;&nbsp;&nbsp; 4.70% | &nbsp;&nbsp;&nbsp;&nbsp; 5.10% | &nbsp;&nbsp;&nbsp;&nbsp; 5.26% | &nbsp;&nbsp;&nbsp;&nbsp; 6.45% |

---

The Fund's broad-based benchmark index is the MSCI World ex-USA Index. The index is described below.

• The MSCI World ex-USA Index is designed to measure the equity market performance of developed market countries in North America, Europe, and the Asia/Pacific Region, excluding the United States.

After-tax returns are calculated using distributions for the Predecessor Fund's Class I Shares for the period prior to June 5, 2017. If Class D Shares of the Fund had been available during periods prior to June 5, 2017, the distributions used to calculate the after-tax returns may have been different. After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on

5 \| Janus Henderson International Dividend Fund

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your individual tax situation and may differ from those shown in the preceding table. The after-tax return information shown above does not apply to Fund shares held through a tax-advantaged account, such as a 401(k) plan or an IRA.

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

**Management**<br>

**Investment Adviser:** Janus Henderson Investors US LLC

**Portfolio Management: Faizan Baig,** CFA, is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since October 2020. **Ben Lofthouse,** CFA, is Executive Vice President and Co-Portfolio Manager of the Fund, which he has co-managed since November 2014.

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

**Purchase and sale of Fund shares**<br>

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

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| | |
|:---|:---|
| **Minimum Investment Requirements** |  |
| To open a new regular Fund account | $2500 |
| To open a new regular Fund account with an automatic investment program of $50 per month | $100 |
| To open a new UTMA account, Coverdell Education Savings Account, or a retirement Fund account |  |
| &nbsp;&nbsp;&nbsp;&nbsp; • without an automatic investment program | $1000 |
| &nbsp;&nbsp;&nbsp;&nbsp; • with an automatic investment program of $50 per month | $100 |
| To add to any existing type of Fund account without an automatic investment program | $50 |

---

You may generally purchase, exchange, or redeem Fund Shares on any business day by written request, wire transfer, telephone, and in most cases, online at janushenderson.com/individual. You may conduct transactions by mail (Janus Henderson, P.O. Box 219109, Kansas City, MO 64121-9109), or by telephone at 1-800-525-3713. Purchase, exchange, or redemption requests must be received in good order by the Fund or its agents prior to the close of the trading session of the New York Stock Exchange in order to receive that day's net asset value. For additional information, refer to "To Open an Account or Buy Shares," "To Exchange Shares," and/or "To Sell Shares" in the Prospectus.

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

**Tax information**<br>

The Fund's distributions are taxable, and will be taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account (in which case you may be taxed upon withdrawal of your investment from such account).

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

**Payments to broker-dealers and other financial intermediaries**<br>

With respect to share classes not offered in this Prospectus, the Fund or its distributor (or its affiliates) pay select broker-dealer firms or other financial intermediaries for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing a broker-dealer or other intermediary or a salesperson to recommend the Fund over another investment or to recommend one share class over another.

6 \| Janus Investment Fund

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