# EDGAR Filing Document

**Accession Number:** 0000898745
**File Stem:** 0000898745-25-000914
**Filing Date:** 2025-12
**Character Count:** 16793
**Document Hash:** 22d722dae7b2323e786ac7b4b8d5f585
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000898745-25-000914.hdr.sgml**: 20251223

**ACCESSION NUMBER**: 0000898745-25-000914

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20251223

**DATE AS OF CHANGE**: 20251223

**EFFECTIVENESS DATE**: 20251223

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PRINCIPAL FUNDS, INC.
- **CENTRAL INDEX KEY:** 0000898745

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-59474
- **FILM NUMBER:** 251601230

**BUSINESS ADDRESS:**
- **STREET 1:** 711 HIGH STREET
- **CITY:** DES MOINES
- **STATE:** IA
- **ZIP:** 50392
- **BUSINESS PHONE:** 515-235-9328

**MAIL ADDRESS:**
- **STREET 1:** PRINCIPAL FINANCIAL GROUP
- **CITY:** DES MOINES
- **STATE:** IA
- **ZIP:** 50392

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PRINCIPAL FUNDS, INC
- **DATE OF NAME CHANGE:** 20211220

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PRINCIPAL FUNDS INC
- **DATE OF NAME CHANGE:** 20080616

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PRINCIPAL INVESTORS FUND INC
- **DATE OF NAME CHANGE:** 20001012

## Series and Classes Contracts Data

### International Small Company Fund (Series ID: S000045671)

| Class ID   | Class Name    | Ticker Symbol   |
|:---|:---|:---|
| C000150254 | Institutional | PISMX           |
| C000176332 | R-6           | PFISX           |

![pfilogoregistereda.jpg](pfilogoregistereda.jpg)

**INTERNATIONAL SMALL COMPANY FUND**

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| | | |
|:---|:---|:---|
| **Class** | **Inst.** | **R-6** |
| **Ticker Symbol(s)** | PISMX | PFISX |

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**Principal Funds, Inc. Summary Prospectus December 31, 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, Statement of Additional Information, Reports to Shareholders, and other information about the Fund online at www.PrincipalAM.com/Prospectuses. You can also get this information at no cost by calling 1-800-222-5852 or by sending an email request to <u>prospectus@principalfunds.com</u>.

The Fund's Prospectus and Statement of Additional Information, both dated December 31, 2025, as may be amended or supplemented, are incorporated by reference into this Summary Prospectus.

**Objective**

The Fund seeks long-term growth of capital.

**Fees and Expenses of the Fund**

This table describes the fees and expenses that you may pay if you buy, hold, and sell shares 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.** 

If you purchase Institutional Class or Class R-6 shares through certain programs offered by certain financial intermediaries, you may be required to pay a commission and/or other forms of compensation to the broker, or to your Financial Professional or other financial intermediary.

**Shareholder Fees (fees paid directly from your investment): None**

**Annual Fund Operating Expenses** 

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

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| | | |
|:---|:---|:---|
| | **Share Class** | **Share Class** |
| | **Inst.** | **R-6** |
| Management Fees | 1.00% | 1.00% |
| Other Expenses | 0.18% | 0.05% |
| **Total Annual Fund Operating Expenses** | **1.18%** | **1.05%** |
| Expense Reimbursement <sup>(1)</sup>  | (0.10)% | (0.01)% |
| **Total Annual Fund Operating Expenses after Expense Reimbursement** | **1.08%** | **1.04%** |

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<sup>(1)</sup> Principal Global Investors, LLC ("PGI"), the investment advisor, has contractually agreed to limit the Fund's expenses by paying, if necessary, expenses normally payable by the Fund (excluding interest expense, expenses related to fund investments, acquired fund fees and expenses, expenses related to the ReFlow liquidity program, and tax reclaim recovery expenses and other extraordinary expenses) to maintain a total level of operating expenses (expressed as a percent of average net assets on an annualized basis) not to exceed 1.08% for Institutional Class shares. In addition, for Class R-6, the expense limit will maintain "Other Expenses" (expressed as a percent of average net assets on an annualized basis) not to exceed 0.04% (excluding interest expense, expenses related to fund investments, acquired fund fees and expenses, expenses related to the ReFlow liquidity program, and tax reclaim recovery expenses and other extraordinary expenses). It is expected that the expense limits will continue through the period ending December 30, 2026; however, Principal Funds, Inc. and PGI, the parties to the agreement, may mutually agree to terminate the expense limits prior to the end of the period. Subject to applicable expense limits, the Fund may reimburse PGI for expenses incurred during the current fiscal year.

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**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 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The calculation of costs takes into account any applicable contractual fee waivers and/or expense reimbursements for the period noted in the table above. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

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| | | | | |
|:---|:---|:---|:---|:---|
| | &nbsp;&nbsp;&nbsp;**1 year** | &nbsp;&nbsp;&nbsp;**3 years** | &nbsp;&nbsp;&nbsp;**5 years** | &nbsp;&nbsp;&nbsp;**10 years** |
| **Institutional Class** | $110 | $365 | $639 | $1423 |
| **Class R-6** | 106 | 333 | 578 | 1282 |

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**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 46.2% of the average value of its portfolio.

**Principal Investment Strategies**

Under normal circumstances, the Fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in equity securities of companies with small market capitalizations. For this Fund, companies with small market capitalizations are those with market capitalizations within the range of companies in the MSCI World Ex USA Small Cap Index (as of November 30, 2025, this was between approximately $189.3 million and $11.9 billion). The Fund may invest in equity securities regardless of style (growth or value). The Fund invests primarily in foreign equity securities. The Fund typically invests in foreign securities of more than 10 countries but has no limitation on the percentage of assets that is invested in each country or denominated in any currency. Primary consideration is given to securities of corporations of developed areas, such as Japan, Western Europe, Canada, Australia, and New Zealand.

**Principal Risks**

The value of your investment in the Fund changes with the value of the Fund's investments. Many factors affect that value, and it is possible to lose money by investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund are listed below in alphabetical order and not in order of significance.

**Equity Securities Risk.** A variety of factors can negatively impact the value of equity securities held by a fund, including a decline in the issuer's financial condition, unfavorable performance of the issuer's sector or industry, or changes in response to overall market and economic conditions. A fund's principal market segment(s) (such as market capitalization or style) may underperform other market segments or the equity markets as a whole.

• **Growth Style Risk.** Growth investing entails the risk that if growth companies do not increase their earnings at a rate expected by investors, the market price of their stock may decline significantly, even if earnings show an absolute increase. Growth company stocks also typically lack the dividend yield that can lessen price declines in market downturns.

• **Smaller Companies Risk.** Investments in smaller companies may involve greater risk and price volatility than investments in larger, more mature companies. Smaller companies may have limited product lines, markets, or financial resources; lack the competitive strength of larger companies; have less experienced managers; or depend on a few key employees. Their securities often are less widely held and trade less frequently and in lesser quantities, and their market prices often fluctuate more, than securities of larger companies.

• **Value Style Risk.** Value investing entails the risk that value stocks may continue to be undervalued by the market for extended periods, including the entire period during which the stock is held by a fund, or the events that would cause the stock price to increase may not occur as anticipated or at all. Moreover, a stock that appears to be undervalued actually may be appropriately priced at a low level and, therefore, would not be profitable for the fund.

**Foreign Currency Risk.** Risks of investing in securities denominated in, or that trade in, foreign (non-U.S.) currencies include changes in foreign exchange rates and foreign exchange restrictions.

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**Foreign Securities Risk.** The risks of foreign securities include loss of value as a result of: political or economic instability; nationalization, expropriation, or confiscatory taxation; settlement delays; and limited government regulation (including less stringent reporting, accounting, and disclosure standards than are required of U.S. companies).

**Redemption and Large Transaction Risk.** Ownership of the Fund's shares may be concentrated in one or a few large investors (such as funds of funds, institutional investors, and asset allocation programs) that may redeem or purchase shares in large quantities. These transactions may cause the Fund to sell securities to meet redemptions or to invest additional cash at times it would not otherwise do so, which may result in increased transaction costs, increased expenses, changes to expense ratios, and adverse effects to Fund performance. Such transactions may also accelerate the realization of taxable income if sales of portfolio securities result in gains. Moreover, reallocations by large shareholders among share classes of a fund may result in changes to the expense ratios of affected classes, which may increase the expenses paid by shareholders of the class that experienced the redemption.

**Performance**

The following information provides some indication of the risks of investing in the Fund. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You may get updated performance information at www.PrincipalAM.com/mutualfundperformance.

The bar chart shows the investment returns of the Fund's Institutional Class shares for each full calendar year of operations for 10 years (or, if shorter, the life of the Fund). The table shows for the last one, five, and ten calendar year periods (or, if shorter, the life of the Fund), how the Fund's average annual total returns compare with those of one or more broad measures of market performance.

For periods prior to the inception date of Class R-6 shares (January 3, 2017), the performance shown in the table for Class R-6 is that of the Fund's Class A shares, adjusted to reflect the fees and expenses of Class R-6. However, where this adjustment for fees and expenses results in performance for Class R-6 that is higher than the historical performance of the Class A shares, the historical performance of the Class A shares is used (without respect to sales charges, which do not apply to Class R-6 shares). These adjustments result in performance for such periods that is no higher than the historical performance of the Class A shares, which were first sold June 11, 2014, and liquidated on February 23, 2021.

**Total Returns as of December 31**

![chart-a66b664203704d03925a.jpg](chart-a66b664203704d03925a.jpg)

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| | | |
|:---|:---|:---|
| **Highest return for a quarter during the period of the bar chart above:** | **Q2 2020** | **21.37%** |
| **Lowest return for a quarter during the period of the bar chart above:** | **Q1 2020** | **(30.37)%** |
| **Year-to-date return for Institutional Class shares:** | **Q3 2025** | **29.84%** |

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**Average Annual Total Returns**

**For the periods ended December 31, 2024**

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| | | | |
|:---|:---|:---|:---|
| | **1 Year** | **5 Years** | **10 Years** |
| **Institutional Class Return Before Taxes** | **1.09%** | **0.41%** | **4.38%** |
| **Institutional Class Return After Taxes on Distributions** | **0.15%** | **(0.32)%** | **3.49%** |
| **Institutional Class Return After Taxes on Distributions and Sale of Fund Shares** | **1.29%** | **0.43%** | **3.42%** |
| **Class R-6 Return Before Taxes** | **1.05%** | **0.48%** | **4.38%** |
| MSCI World Ex USA IMI USD Net (reflects withholding taxes on foreign dividends, but no deduction for fees, expenses, or other taxes) | 4.44% | 4.78% | 5.28% |
| MSCI World Ex USA Small Cap Net (reflects withholding taxes on foreign dividends, but no deduction for fees, expenses, or other taxes) | 2.76% | 2.87% | 5.49% |

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After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown. The after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for Institutional Class shares only and would be different for the other share classes.

The MSCI World Ex USA IMI USD Net is the Fund's primary broad-based securities market index. The MSCI World Ex USA Small Cap Net is included as an additional index for the Fund as it shows how the Fund's performance compares with the returns of an index of funds with similar investment objectives.

**Investment Advisor and Portfolio Managers**

Principal Global Investors, LLC

• Tiffany N. Lavastida (since 2014), Portfolio Manager

• Brian W. Pattinson (since 2014), Portfolio Manager

**Purchase and Sale of Fund Shares**

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| | | |
|:---|:---|:---|
| **Share Class** | **Investment Type** | **Purchase Minimum**<br>**Per Fund** |
| **Institutional and R-6** | There are no minimum initial or subsequent investment requirements for eligible purchasers. | N/A |

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You may purchase or redeem shares on any business day (normally any day when the New York Stock Exchange is open for regular trading) through your plan, intermediary, or Financial Professional by sending a written request to Principal Funds at P.O. Box 219971, Kansas City, MO 64121-9971 (regular mail) or 801 Pennsylvania Ave., Ste. 219971, Kansas City, MO 64105-1307 (overnight mail); calling us at 1-800-222-5852; or accessing our website (www.principal.com).

**Tax Information**

The Fund's distributions you receive are generally subject to federal income tax as ordinary income or capital gain and may also be subject to state and local taxes, unless you are tax-exempt or your account is tax-deferred in which case your distributions would be taxed when withdrawn from the tax-deferred account.

**Payments to Broker-Dealers and Other Financial Intermediaries**

If you purchase the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies 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 of the Fund over another share class. Ask your salesperson or visit your financial intermediary's website for more information.

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