# EDGAR Filing Document

**Accession Number:** 0001710607
**File Stem:** 0001710607-26-000026
**Filing Date:** 2026-2
**Character Count:** 621083
**Document Hash:** 6a17199f2b043d7cc1f32d675a3b255d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001710607-26-000026.hdr.sgml**: 20260220

**ACCESSION NUMBER**: 0001710607-26-000026

**CONFORMED SUBMISSION TYPE**: 485APOS

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260220

**DATE AS OF CHANGE**: 20260220

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AMERICAN CENTURY ETF TRUST
- **CENTRAL INDEX KEY:** 0001710607

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0831

**FILING VALUES:**
- **FORM TYPE:** 485APOS
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-23305
- **FILM NUMBER:** 26658589

**BUSINESS ADDRESS:**
- **STREET 1:** 4500 MAIN STREET
- **CITY:** KANSAS CITY
- **STATE:** MO
- **ZIP:** 64111
- **BUSINESS PHONE:** (816) 531-5575

**MAIL ADDRESS:**
- **STREET 1:** 4500 MAIN STREET
- **CITY:** KANSAS CITY
- **STATE:** MO
- **ZIP:** 64111

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** American Century ETF Trust
- **DATE OF NAME CHANGE:** 20170628
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AMERICAN CENTURY ETF TRUST
- **CENTRAL INDEX KEY:** 0001710607

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0831

**FILING VALUES:**
- **FORM TYPE:** 485APOS
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-221045
- **FILM NUMBER:** 26658588

**BUSINESS ADDRESS:**
- **STREET 1:** 4500 MAIN STREET
- **CITY:** KANSAS CITY
- **STATE:** MO
- **ZIP:** 64111
- **BUSINESS PHONE:** (816) 531-5575

**MAIL ADDRESS:**
- **STREET 1:** 4500 MAIN STREET
- **CITY:** KANSAS CITY
- **STATE:** MO
- **ZIP:** 64111

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** American Century ETF Trust
- **DATE OF NAME CHANGE:** 20170628

**As Filed with the U.S. Securities and Exchange Commission on February 20, 2026**

**1933 Act File No. 333-221045**

**1940 Act File No. 811-23305**

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| | |
|:---|:---|
| **UNITED STATES<br>SECURITIES AND EXCHANGE COMMISSION<br>WASHINGTON, D.C. 20549** | **UNITED STATES<br>SECURITIES AND EXCHANGE COMMISSION<br>WASHINGTON, D.C. 20549** |
| **__________________** | **__________________** |
| <br>**FORM N-1A** | <br>**FORM N-1A** |
| **__________________** | **__________________** |
| **REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;☒ |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pre-Effective Amendment No. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;☐ |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Post-Effective Amendment No. 101 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;☒ |
| and/or | and/or |
| **REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;☒ |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Amendment No. 103 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;☒ |
| (Check appropriate box or boxes.) | (Check appropriate box or boxes.) |
| **__________________** | **__________________** |
| **American Century ETF Trust** | **American Century ETF Trust** |
| **__________________** | **__________________** |
| **4500 MAIN STREET, KANSAS CITY, MISSOURI 64111**<br>&nbsp;&nbsp;&nbsp;&nbsp;(Address of Principal Executive Offices)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (Zip Code)  | **4500 MAIN STREET, KANSAS CITY, MISSOURI 64111**<br>&nbsp;&nbsp;&nbsp;&nbsp;(Address of Principal Executive Offices)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (Zip Code)  |
| <br>**REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (816) 531-5575** | <br>**REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (816) 531-5575** |
| **JOHN PAK**<br>**4500 MAIN STREET, KANSAS CITY, MISSOURI 64111**<br>(Name and Address of Agent for Service) | **JOHN PAK**<br>**4500 MAIN STREET, KANSAS CITY, MISSOURI 64111**<br>(Name and Address of Agent for Service) |
| Approximate Date of Proposed Public Offering: As soon as practicable after effectiveness |  |
| It is proposed that this filing will become effective (check appropriate box) |  |

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| | |
|:---|:---|
| ☐ | immediately upon filing pursuant to paragraph (b) |
| ☐ | on (date), at 8:30 AM (Central) pursuant to paragraph (b) |
| ☐ | 60 days after filing pursuant to paragraph (a)(1) |
| ☐ | on (date), pursuant to paragraph (a)(1) |
| ☐ | 75 days after filing pursuant to paragraph (a)(2) |
| ☒ | on May 21, 2026, pursuant to paragraph (a)(2) of rule 485 |
| &nbsp;&nbsp;&nbsp;&nbsp;If appropriate, check the following box: | &nbsp;&nbsp;&nbsp;&nbsp;If appropriate, check the following box: |
| ☐ | this post-effective amendment designates a new effective date for a previously filed post-effective amendment. |

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*The information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.*

[ ], 2026

**American Century Investments**

Prospectus

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| | | |
|:---|:---|:---|
| | **Ticker:** | **Exchange:** |
| **American Century**<sup>®</sup> **Securitized Credit ETF** | **ASEC** | **The NASDAQ Stock Market LLC** |

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|:---|:---|
| ***The Securities and Exchange Commission has<br>not approved or disapproved these securities or<br>passed upon the adequacy of this prospectus. Any<br>representation to the contrary is a criminal offense.*** | ![aci_horizxrgbxblackcroppeda.jpg](aci_horizxrgbxblackcroppeda.jpg) |

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**Table of Contents**

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| | |
|:---|:---|
| **Fund Summary** | **2** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Investment Objective | 2 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Fees and Expenses | 2 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Principal Investment Strategies | 2 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Principal Risks | 3 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Fund Performance | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Portfolio Management | 6 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Purchase and Sale of Fund Shares | 6 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Tax Information | 6 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Payments to Broker-Dealers and Other Financial Intermediaries | 6 |
| **Objectives, Strategies and Risks** | **7** |
| **Management** | **12** |
| **Investing in the Fund** | **14** |
| **Share Price and Distributions** | **16** |
| **Taxes** | **18** |
| **Additional Information** | **20** |
| **Financial Highlights** | **21** |

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<br>©2026 American Century Proprietary Holdings, Inc. All rights reserved.

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**Fund Summary**

**Investment Objective**

The fund seeks to provide a high level of current income and total return.

**Fees and Expenses**

The following table describes the fees and expenses 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.

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| | |
|:---|:---|
| **Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment) | **Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment) |
| Management Fee | [ ]% |
| Other Expenses<sup>1</sup> | [ ]% |
| Acquired Fund Fees and Expenses<sup>1</sup> | [ ]% |
| Total Annual Fund Operating Expenses | [ ]% |

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<sup>1&nbsp;&nbsp;&nbsp;&nbsp;</sup>*Other Expenses and Acquired Fund Fees and Expenses are based on estimated amounts for the current fiscal year.*

**Example**

The example below is intended to help you compare the costs of investing in the fund with the costs of investing in other 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, that you earn a 5% return each year, and that the fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

*1 year* *3 years* <br> <u>[ ]</u> <u>[ ]</u>

**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. ecause the fund is new, the fund's portfolio turnover rate is not available.

**Principal Investment Strategies**

The fund will invest at least 80% of its net assets (plus borrowings for investment purposes) in securitized credit investments. The fund generally intends to focus on investment grade, U.S. securitized debt securities in non-traditional asset-backed sectors (such as aircraft leases, equipment leases, consumer loans, cell towers, and digital infrastructure). The fund may also invest in residential mortgage-backed securities, commercial mortgage-backed securities, collateralized loan obligations, and government and non-government agency securities..

Using a combination of top-down and bottom-up inputs, the portfolio managers select securities using a process integrates proprietary fundamental research and quantitative model inputs as well as qualitative assessments in order to identify inherent market inefficiencies, which create investment opportunities. The fund invests primarily in investment-grade securities but may also invest a portion of its assets in high-yield debt securities. Investment grade securities are those that have been rated in one of the top four credit quality categories by an independent rating agency or determined by the advisor to be of comparable credit quality. High-yield securities, which are also known as "junk bonds," are those that have been rated by an independent rating agency below the highest four categories or determined by the advisor to be of similar quality.

The fund will invest primarily in U.S. dollar-denominated securities.. The fund has no average maturity or duration limitations, but will typically be managed with a duration of less than 5 years.

The fund may also utilize derivative instruments provided that such investments are in keeping with the fund's investment objectives. Such derivative instruments include options, futures contracts, options on futures contracts, and swaps (such as credit default swaps either on a single issuer or a securities index), or in mortgage- or asset-backed securities.

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The fund is an actively managed exchange-traded fund (ETF) that does not seek to replicate the performance of a specified index. When deciding whether to buy or sell a security, and how and when to implement a trade, the portfolio managers consider, among other things, various fund requirements and standards, along with economic conditions, alternative investments, interest rates and various credit metrics. They may also consider the expected implementation costs and tax consequences of the trade in an attempt to gain trading efficiencies, avoid unnecessary risk, minimize tax impact, and/or enhance fund returns.

**Principal Risks**

• **Interest Rate Risk —** Investments in debt securities are also sensitive to interest rate changes. Generally, the value of debt securities and the funds that hold them decline as interest rates rise. The fund is more susceptible to interest rate changes than funds that have shorter-weighted average maturities, such as money market and short-term bond funds. A period of rising interest rates may negatively affect the fund's performance.

• **Credit Risk —** The inability or perceived inability of a security's issuer to make interest and principal payments may cause the value of the security to decrease. As a result, the fund's share price could also decrease. Changes in the credit rating of a debt security held by the fund could have a similar effect.

• **Asset-Backed Securities Risk —** Asset-backed securities may be adversely affected by changes in interest rates, underperformance of the underlying assets, the creditworthiness of the entities that provide any supporting letters of credit, surety bonds, or other credit or liquidity enhancements. In addition, most asset-backed securities are subject to prepayment risk in a declining interest rate environment, and extension risk in an increasing rate environment.

• **Collateralized Obligations Risk —** Collateralized obligations, such as collateralized loan obligations (CLOs), are subject to credit, interest rate, valuation, and prepayment and extension risks. These securities also are subject to risk of default on the underlying asset, particularly during periods of economic downturn. The market value of collateralized obligations may be affected by, among other things, changes in the market value of the underlying assets held by the collateralized obligation, changes in the distributions on the underlying assets, defaults and recoveries on the underlying assets, capital gains and losses on the underlying assets, prepayments on underlying assets and the availability, and prices and interest rates of underlying assets. Lower rated tranches of such debt are subject to a higher risk of total loss and deferral or nonpayment of interest than the more senior tranches to which they are subordinated. Some of the collateralized obligations in which the fund invests may be covenant-lite loans. Covenant-lite loans contain fewer or less restrictive constraints on the borrower. The fund may have fewer rights against a borrower and an accompanying greater risk of loss when it invests in covenant-lite loans.

• **Derivatives Risk —** The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities. Derivatives are subject to a number of risks, including liquidity, interest rate, market, credit and correlation risk. Derivatives used for hedging or risk management may not operate as intended, may expose the fund to other risks, and may be insufficient to protect the fund from the risks they were intended to hedge. In addition, derivatives can create economic leverage in the fund's portfolio, which may result in significant volatility and cause the fund to participate in losses (as well as gains) in an amount that exceeds the fund's initial investment. Certain derivatives have the potential for unlimited loss, regardless of the size of the initial investment.

Futures contracts may experience dramatic price changes and imperfect correlations between the price of the contract and the underlying security, index or currency.

Swap agreements subject a fund to the risk that the counterparty to the transaction may not meet its obligations. The fund also bears the risk of loss of the amount expected to be received under a swap agreement in the event of the default or bankruptcy of a counterparty. Swap agreements may also be considered illiquid.

Foreign currency forward contracts and other derivatives contracts on foreign currencies involve a risk of loss if currency exchange rates move against the fund's position.

• **High-Yield Risk —** Issuers of high-yield securities are more vulnerable to real or perceived economic changes (such as an economic downturn or a prolonged period of rising interest rates), political changes or adverse developments specific to an issuer. These factors may be more likely to cause an issuer of low-quality bonds to default on its obligations. High-yield securities are speculative.

• **Counterparty Risk —** If the fund enters into financial contracts, the fund will be subject to the credit risk presented by the counterparties.

• **Cash Transactions Risk —** The fund may effect its creations and redemptions for cash, rather than for in-kind securities. Therefore, it may be required to sell portfolio securities and subsequently recognize gains on such sales that the fund might not have recognized if it were to distribute portfolio securities in-kind. As such, investments in fund shares may be less tax-efficient than an investment in an ETF that distributes portfolio securities entirely in-kind. Cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. Brokerage fees and taxes will be higher than if the fund sold and redeemed shares in-kind.

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• **Liquidity Risk —** During periods of market turbulence or unusually low trading activity, it may be necessary for the fund to sell securities at prices that could have an adverse effect on the fund. The market for lower-quality debt securities is generally less liquid than the market for higher-quality securities. Changing regulatory and market conditions, including increases in interest rates and credit spreads may adversely affect the liquidity of the fund's investments.

**• Market Trading Risk —** The fund faces numerous market trading risks, including the potential lack of an active market for fund shares, losses from trading in secondary markets, periods of high volatility and disruption in the creation and/or redemption process of the fund. Any of these factors, among others, may lead to the fund's shares trading at a premium or discount to NAV. Thus, you may pay more (or less) than NAV when you buy shares of the fund in the secondary market, and you may receive less (or more) than NAV when you sell those shares in the secondary market. The portfolio managers cannot predict whether shares will trade above (premium), below (discount) or at NAV.

**• Market Risk —** The value of the fund's shares will go up and down, sometimes rapidly or unpredictably, based on the performance of the issuers whose securities it owns and other factors generally affecting the securities market. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund's investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.

• **Prepayment and Extension Risk —** The fund may invest in debt securities backed by mortgages or other assets. If these underlying assets are prepaid, the fund may benefit less from declining interest rates than funds of similar duration that invest less heavily in mortgage and asset-backed securities. Conversely, an issuer may exercise its right to pay principal on an obligation held by the fund later than expected (extend the obligation) especially in periods of rising interest rates. These events may lengthen the duration (*i.e.*, interest rate sensitivity) and potentially reduce the value of these securities.

• **Authorized Participant Concentration Risk —** Only an authorized participant may engage in creation or redemption transactions directly with the fund. The fund may have a limited number of institutions that act as authorized participants. To the extent that these institutions exit the business or are unable to proceed with creation and/or redemption orders with respect to the fund and no other authorized participant is able to step forward to process creation and/or redemption orders, fund shares may trade at a discount to net asset value (NAV) and possibly face trading halts and/or delisting. This risk may be more pronounced in volatile markets, potentially where there are significant redemptions in ETFs generally.

• **Large Shareholder Risk —** Certain shareholders, including other funds advised by the advisor, may from time to time own a substantial amount of the shares of the fund. In addition, a third party investor, the advisor or an affiliate of the advisor, an authorized participant, a market maker, or another entity may invest in the fund and hold its investment for a limited period of time solely to facilitate commencement of the fund or to facilitate the fund's achieving a specified size or scale. There can be no assurance that any large shareholder would not redeem its investment, that the size of the fund would be maintained at such levels or that the fund would continue to meet applicable listing requirements. Redemptions by large shareholders could have a significant negative impact on the fund. In addition, transactions by large shareholders may account for a large percentage of the trading volume on the NASDAQ Stock Market LLC and may therefore have a material upward or downward effect on the market price of the shares.

• **Principal Loss Risk —** At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

An investment in the fund is not a bank deposit, and it is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

**Fund Performance**

The fund's performance history is not available as of the date of this prospectus. When the fund has investment results for a full calendar year, this section will feature charts that show annual total returns, highest and lowest quarterly returns and average annual total returns for the fund. This information indicates the volatility of the fund's historical returns from year to year. For current performance information, please visit avantisinvestors.com.

Performance information is designed to help you see how fund returns can vary. Keep in mind that past performance (before and after taxes) does not predict how the fund will perform in the future.

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**Portfolio Management**

**Investment Advisor**

American Century Investment Management, Inc.

**Portfolio Managers**

**Paul Norris,** Vice President and Senior Portfolio Manager, has been a member of the team that manages the funds since its inception.

**Michael Waggaman,** Vice President and Senior Portfolio Manager, has been a member of the team that manages the funds since its inception.

**Purchase and Sale of Fund Shares**

The fund is an ETF. Fund shares may only be bought and sold in a secondary market through a broker-dealer at a market price. Because ETF shares trade at market prices rather than NAV, shares may trade at a price greater than NAV (a premium) or less than NAV (a discount). An investor may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase shares of the fund (bid) and the lowest price a seller is willing to accept for shares of the fund (ask) when buying or selling shares in the secondary market (bid-ask spread). Investors can find information on the fund's NAV, market price, premiums and discounts, and bid-ask spread at americancentury.com.

**Tax Information**

Fund distributions are generally taxable as ordinary income or capital gains, unless you are investing through a tax-deferred account such as a 401(k) or individual retirement account (in which case you may be taxed upon withdrawal of your investment from such 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 advisor 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. Ask your salesperson or visit your financial intermediary's website for more information.

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**Objectives, Strategies and Risks**

**What are the fund's investment objectives?**

The fund seeks to provide a high level of current income and total return.

The fund's investment objective is a nonfundamental investment policy and may be changed by the Board of Trustees without approval by shareholders upon 30 days' notice.

**What are the fund's principal investment strategies?**

The fund will invest at least 80% of its net assets (plus borrowings for investment purposes) in securitized securities. Securitized securities are debt securities that entitle their holders to payments that depend primarily on the assets underlying the securities, and include, but are not limited to, asset-backed securities (ABS), collateralized mortgage obligations (CMOs), agency and non-agency mortgage-backed securities (MBS), and collateralized loan obligations (CLOs). ABS include, but are not limited to, private and multi-class structures, pass-through certificates, and other instruments secured by financial, physical, and/or intangible assets. MBS include, but are not limited to, commercial mortgage-backed securities (CMBS) and credit risk transfer securities (CRTs) issued by government sponsored entities or private issuers. The fund will typically enter into "to be announced" or "TBA" commitments when purchasing MBS, which allows the fund to agree to pay for certain yet-to-be issued securities at a future date and which may have a leveraging effect on the fund. The fund may enter into mortgage dollar rolls which allow the fund to sell securities for delivery in the current month and simultaneously contract with the same counterparty to repurchase similar securities on a specified future date. The fund generally intends to focus on investment grade, non-U.S. securitized debt securities in non-traditional asset-backed sectors (such as aircraft leases, equipment leases, consumer loans, cell towers, and digital infrastructure). Using a combination of top-down and bottom-up inputs, the portfolio managers select securities using a process integrates proprietary fundamental research and quantitative model inputs as well as qualitative assessments in order to identify inherent market inefficiencies, which create investment opportunities. The fund invests primarily in investment-grade securities but may also invest a portion of its assets in high-yield debt securities. Investment grade securities are those that have been rated in one of the top four credit quality categories by an independent rating agency or determined by the advisor to be of comparable credit quality. High-yield securities, which are also known as "junk bonds," are those that have been rated by an independent rating agency below the highest four categories or determined by the advisor to be of similar quality.

The fund will invest primarily in U.S. dollar-denominated securities. The fund has no average maturity or duration limitations, but will typically be managed with a duration of less than 5 years.

The fund may also utilize derivative instruments provided that such investments are in keeping with the fund's investment objectives. Such derivatives include options, futures contracts, options on futures contracts, and swaps (such as interest rate swaps and credit default swaps either on a single issuer or a securities index), or in mortgage- or asset-backed securities. The fund may invest in collateralized debt obligations, including collateralized loan obligations, collateralized mortgage obligations, and other similarly structured investments. The fund may use foreign currency exchange contracts to shift investment exposure from one currency into another for hedging purposes or to enhance returns.

For temporary defensive purposes, the fund may invest without limit in securities that are inconsistent with the fund's principal investment strategies, such as cash, cash equivalents, money market instruments or other high-quality short-term investments. To the extent the fund assumes a defensive position, it may not achieve its investment objective.

The fund is an actively managed ETF that does not seek to replicate the performance of a specified index. The portfolio managers decide which debt securities to buy and sell by:

• identifying debt securities that satisfy the fund's credit quality standards

• determining which debt securities help the fund meet its maturity requirements

• assessing current and anticipated interest rates

• evaluating current economic conditions and the risk of inflation

• evaluating special features of the debt securities that may make them more or less attractive to alternatives.

When deciding whether to buy or sell a security, and how and when to implement a trade, the portfolio managers consider, among other things, various fund requirements and standards, along with economic conditions, alternative investments, interest rates and various credit metrics. They may also consider the expected implementation costs and tax consequences of the trade in an attempt to gain trading efficiencies, avoid unnecessary risk, minimize tax impact, and/or enhance fund returns

A description of the policies and procedures with respect to the disclosure of the fund's portfolio securities is available in the statement of additional information. Portfolio holdings can be viewed online at americancentury.com.

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**What are the principal risks of investing in the fund?**

• **Interest Rate Risk —** Investments in debt securities are also sensitive to interest rate changes. Generally, the value of debt securities and the funds that hold them decline as interest rates rise. The degree to which interest rate changes affect the fund's performance varies and is related to the weighted average maturity of the fund. For example, when interest rates rise, you can expect the share value of a long-term bond fund to fall more than that of a short-term bond fund. When rates fall, the opposite is true. The fund is more susceptible to interest rate changes than funds that have shorter-weighted average maturities, such as money market and short-term bond funds. A period of rising interest rates may negatively affect the fund's performance.

**• Credit Risk —** Credit risk is the risk that the inability or perceived inability of a security's issuer to make interest and principal payments may cause the value of the security to decrease. As a result the fund's share price could also decrease. Changes in the credit rating of a debt security held by the fund could have a similar effect. A high credit rating indicates a high degree of confidence by the rating organization that the issuer will be able to withstand adverse business, financial or economic conditions and make interest and principal payments on time. A lower credit rating indicates a greater risk of non-payment. Issuers of high-yield securities are more vulnerable to real or perceived economic changes (such as an economic downturn or a prolonged period of rising interest rates), political changes or adverse developments specific to the issuer. In addition, lower-rated securities may be unsecured or subordinated to other obligations of the issuer. These factors may be more likely to cause an issuer of low-quality bonds to default on its obligation to pay the interest and principal due under its securities. The fund's credit quality restrictions apply at the time of purchase; the fund will not necessarily sell securities if they are downgraded by a rating agency.

• **Collateralized Obligation Risk —** Collateralized obligations, such as collateralized loan obligations (CLOs) and collateralized debt obligations (CDOs), are subject to credit, interest rate, valuation, prepayment and extension risks. These securities also are subject to risk of default on the underlying asset, particularly during periods of economic downturn. The risks of an investment in a CDO depend largely on the type of the collateral securities and the class of the debt obligation in which the fund invests. The market value of CLO securities may be affected by, among other things, changes in the market value of the underlying assets held by the CLO, changes in the distributions on the underlying assets, defaults and recoveries on the underlying assets, capital gains and losses on the underlying assets, prepayments on underlying assets and the availability, and prices and interest rates of underlying assets. Lower rated tranches of such debt are subject to a higher risk of total loss and deferral or nonpayment of interest than the more senior tranches to which they are subordinated. Some of the collateralized obligations in which the fund invests may be covenant-lite loans. Covenant-lite loans contain fewer or less restrictive constraints on the borrower. Generally, the lender is not allowed to monitor the borrower's performance, declare default, or force borrowers into bankruptcy. In this type of loan, lenders rely on restrictive covenants to prevent a company from engaging in specified actions such as taking on additional debt. Generally, such covenants are precipitated only by an affirmative breach by the borrower, as opposed to a decline in the borrower's financial condition. Thus, the fund may have fewer rights against a borrower and an accompanying greater risk of loss when it invests in covenant-lite loans.

**• Derivatives Risk —** The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional instruments. Derivatives are subject to a number of risks, including liquidity, interest rate, market, and credit risk. They also involve the risk of mispricing or improper valuation, the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and the risk of default or bankruptcy of the other party to the instrument. Certain derivatives have the potential for unlimited loss, regardless of the size of the initial investment. Derivatives used for hedging or risk management may not operate as intended, may expose the fund to other risks, and may be insufficient to protect the fund from the risks they were intended to hedge. Gains or losses involving some futures, options, and other derivatives may be substantial - in part because a relatively small price movement in these securities may result in an immediate and substantial gain or loss for the fund. In addition, derivatives can create economic leverage in the fund's portfolio, which may result in significant volatility and cause the fund to participate in losses (as well as gains) in an amount that exceeds the fund's initial investment.

Futures contracts may experience potentially dramatic price changes (losses) and imperfect correlations between the price of the contract and the underlying security, index or currency which will increase the volatility of the fund and may involve a small investment of cash relative to the magnitude of the risk assumed.

Swap agreements are agreements to exchange the return generated by one instrument for the return generated by another instrument (or index). Swap agreements subject a fund to the risk that the counterparty to the transaction may not meet its obligations. The fund also bears the risk of loss of the amount expected to be received under a swap agreement in the event of the default or bankruptcy of a counterparty. Interest rate swaps could result in losses if interest rate changes are not correctly anticipated by the fund. Credit default swaps could result in losses if the fund does not correctly evaluate the creditworthiness of the issuer on which the credit default swap is based. Swap agreements may also be considered illiquid.

A foreign currency exchange contract is an agreement to buy or sell a specific currency at a future date and at a price set at the time of the contract. Foreign currency forward contracts and other derivatives contracts on foreign currencies involve a risk of loss if currency exchange rates move against the fund's position. Forward contracts also subject the fund to the risk that the counterparty to the transaction may not meet its obligations.

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• **Bank Loan Risk —** Investments in bank loans, loans made by banks or other financial intermediaries to borrowers, require the fund to depend primarily upon the creditworthiness of the borrower for payment of principal and interest, exposing the fund to the credit risk of both the financial institution and the underlying borrower. The market for bank loans may not be highly liquid and the fund may have difficulty selling them. In connection with purchasing participations, the fund generally will have no right to enforce compliance by the borrower with the terms of the loan agreement, nor any rights with respect to any funds acquired by other lenders through set-off against the borrower, and the fund may not directly benefit from any collateral supporting the loan in which it has purchased the participation. In addition, transactions in bank loans may take more than seven days to settle. As a result, the proceeds from the sale of bank loans may not be readily available to make additional investments or to meet the fund's redemption obligations. To the extent the extended loan settlement process gives rise to short-term liquidity needs, such as the need to satisfy redemption requests, the fund may hold cash or sell investments. Some bank loan interests may not be considered securities or registered under the Securities Act of 1933 and, therefore, not afforded the protections of the federal securities laws.

**• High-Yield Risk —** Issuers of high-yield securities are more vulnerable to real or perceived economic changes (such as an economic down turn or a prolonged period of rising interest rates), political changes or adverse developments specific to an issuer. These factors may be more likely to cause an issuer of low quality bonds to default on its obligations. High-yield securities are speculative.

• **Convertible Securities Risk —** The value of convertible securities may rise and fall with the market value of the underlying stock or, like a debt security, vary with changes in interest rates and the credit quality of the issuer. A convertible security tends to perform more like a stock when the underlying stock price is high relative to the conversion price and more like a debt security when the underlying stock price is low relative to the conversion price. Contingent convertible securities (sometimes referred to as CoCos or Additional Tier 1 Instruments) are subject to additional risks. Under certain circumstances, CoCos may be subject to automatic write-down of the principal amount or value of the securities, sometimes to zero, thereby cancelling the securities. If such an event occurs, the fund may not have any rights to repayment of the principal amount of the securities that has not become due. Additionally, the fund may not be able to collect interest payments or dividends on such securities. CoCos are often rated below investment grade and are subject to the risks of high-yield securities.

• **Counterparty Risk —** If the fund enters into financial contracts, the fund will be subject to the credit risk presented by the counterparties.

• **Cash Transactions Risk —** ETFs generally are able to make in-kind redemptions and avoid being taxed on gain on the distributed portfolio securities at the fund level. However, because the fund may effect redemptions in cash, rather than in-kind, it may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds. If the fund recognizes gain on these sales, this generally will cause the fund to recognize gain it might not otherwise have recognized, or to recognize such gain sooner than would otherwise be required if it were to distribute portfolio securities in-kind. The fund generally intends to distribute these gains to shareholders to avoid being taxed on this gain at the fund level and otherwise comply with the special tax rules that apply to it. This strategy may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than, if they had made an investment in a different ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which may be higher than if the fund sold and redeemed its shares in-kind, will be passed on to purchasers and redeemers of Creation Units in the form of creation and redemption transaction fees. To the extent that these costs are not offset by a transaction fee, the fund may bear the expense.

• **Liquidity Risk —** The chance that a fund will have difficulty selling its debt securities is called liquidity risk. During periods of market turbulence or unusually low trading activity, it may be necessary for the fund to sell securities at prices that could have an adverse effect on the fund. The market for lower-quality debt securities is generally less liquid than the market for higher-quality securities. Adverse publicity and investor perceptions, as well as new and proposed laws, also may have a greater negative impact on the market for lower-quality securities. Changing regulatory and market conditions, including increases in interest rates and credit spreads, may adversely affect the liquidity of the fund's investments. In addition, when the market for certain investments is illiquid, the fund may be unable to achieve its desired level of exposure to a certain sector. Illiquid securities may be difficult to value.

**• High Portfolio Turnover Risk —** The fund may engage in active and frequent trading of its portfolio securities. High portfolio turnover may result in increased transaction costs to the fund, including brokerage commissions, dealer mark-ups and other transaction costs on the sale of the securities and on reinvestment in other securities.

• **Market Trading Risk —** Although shares of the fund are listed for trading on one or more stock exchanges, there can be no assurance that an active trading market for such shares will develop or be maintained. There are no obligations of market makers to make a market in the fund's shares or of an authorized participant to submit purchase or redemption orders for Creation Units. Decisions by market makers or authorized participants to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of the fund's portfolio securities and the fund's market price. This reduced effectiveness could result in fund shares trading at a premium or discount to its NAV and also greater than normal intraday bid/ask spreads.

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Shares of the fund may trade in the secondary market at times when the fund does not accept orders to purchase or redeem shares. At such times, shares may trade in the secondary market with more significant premiums or discounts than might be experienced at times when the fund accepts purchase and redemption orders. Secondary market trading in fund shares may be halted by a stock exchange because of market conditions or other reasons, and may be subject to trading halts caused by extraordinary market volatility pursuant to "circuit breaker" rules on the stock exchange or market. There can be no assurance that the requirements necessary to maintain the listing or trading of fund shares will continue to be met or will remain unchanged. In addition, during a "flash crash," the market prices of the fund's shares may decline suddenly and significantly. Such a decline may not reflect the performance of the portfolio securities held by the fund. Flash crashes may cause authorized participants and other market makers to limit or cease trading in the fund's shares for temporary or longer periods. Shareholders could suffer significant losses to the extent that they sell fund shares at these temporarily low market prices.

Shares of the fund may trade at prices other than NAV. Thus, you may pay more (or less) than NAV when you buy shares of the fund in the secondary market, and you may receive less (or more) than NAV when you sell those shares in the secondary market. While the creation/redemption feature is designed to make it likely that the fund's shares normally will trade on stock exchanges at prices close to the fund's next calculated NAV, market prices are not expected to correlate exactly with the fund's NAV due to timing reasons as well as market supply and demand factors. In addition, disruptions to creations and redemptions or extreme market volatility may result in trading prices for shares of the fund that differ significantly from its NAV. The portfolio managers cannot predict whether shares will trade above (premium), below (discount) or at NAV.

When buying or selling shares of the fund through a broker, you will likely incur a brokerage commission or other charges determined by your broker. In addition, you may incur the cost of the "spread," that is, any difference between the bid price and the ask price. The spread varies over time for shares of the fund based on the fund's trading volume and market liquidity, and is generally lower if the fund has a lot of trading volume and market liquidity, and higher if the fund has little trading volume and market liquidity. During times of market stress, spreads may widen causing investors to pay more.

**• Market Risk —** The value of the fund's shares depends on the value of the bonds and other securities it owns. The value of the individual securities the fund owns will go up and down, sometimes rapidly or unpredictably, depending on the performance of the issuers that issued them, general market and economic conditions and investor confidence. Market risks, including political, regulatory, economic and social developments, can affect the value of the fund's investments. Natural disasters, public health emergencies, war, terrorism and other unforeseeable events may lead to increased market volatility and may have adverse long-term effects on world economies and markets generally.

• **Prepayment and Extension Risk —** The fund may invest in debt securities backed by mortgages or assets such as auto loan, home equity loan or student loan receivables. These underlying obligations may be prepaid, as when a homeowner refinances a mortgage to take advantage of declining interest rates. If so, the fund must reinvest prepayments at current rates, which may be less than the rate of the prepaid mortgage. Because of this prepayment risk, the fund may benefit less from declining interest rates than funds of similar duration that invest less heavily in mortgage- and asset-backed securities. Conversely, an issuer may exercise its right to pay principal on an obligation held by the fund later than expected (extend the obligation), especially in periods of rising interest rates. These events may lengthen the duration (*i.e.*, interest rate sensitivity) and potentially reduce the value of these securities.

**• Authorized Participant Concentration Risk —** Only an authorized participant may engage in creation or redemption transactions directly with the fund. The fund may have a limited number of institutions that act as authorized participants, none of which are obligated to engage in creation or redemption transactions. To the extent that these institutions exit the business or are unable to proceed with creation and/or redemption orders with respect to the fund and no other authorized participant is able to step forward to process creation and/or redemption orders, fund shares may trade at a discount to NAV and possibly face trading halts and/or delisting. This risk may be more pronounced in volatile markets, potentially where there are significant redemptions in ETFs generally. Authorized participant concentration risks may be heightened in scenarios where authorized participants have limited or diminished access to the capital required to post collateral.

• **Large Shareholder Risk —** Certain shareholders, including other funds advised by the advisor, may from time to time own a substantial amount of the shares of the fund. In addition, a third party investor, the advisor or an affiliate of the advisor, an authorized participant, a market maker, or another entity may invest in the fund and hold its investment for a limited period of time solely to facilitate commencement of the fund or to facilitate the fund's achieving a specified size or scale. There can be no assurance that any large shareholder would not redeem its investment, that the size of the fund would be maintained at such levels or that the fund would continue to meet applicable listing requirements. Redemptions by large shareholders could have a significant negative impact on the fund. In addition, transactions by large shareholders may account for a large percentage of the trading volume on the NYSE Arca, Inc. and may therefore have a material upward or downward effect on the market price of the shares.

• **Principal Loss Risk —** At any given time your shares may be worth less than the price you paid for them. In other words, it is possible to lose money by investing in the fund.

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**Management**

**Who manages the fund?**

The Board of Trustees, investment advisor and fund management team play key roles in the management of the fund.

**The Board of Trustees**

The Board of Trustees is responsible for overseeing the advisor's management and operations of the fund pursuant to the management agreement. In performing their duties, Board members receive detailed information about the fund and its advisor regularly throughout the year, and meet at least quarterly with management of the advisor to review reports about fund operations. The trustees' role is to provide oversight and not to provide day-to-day management. The majority of the trustees are independent of the fund's advisor. They are not employees, directors or officers of, and have no financial interest in, the advisor or any of its affiliated companies (other than as shareholders of American Century Investments funds), and they do not have any other affiliations, positions or relationships that would cause them to be considered "interested persons" under the Investment Company Act of 1940 (Investment Company Act).

**The Investment Advisor**

The fund's investment advisor is American Century Investment Management, Inc. (the advisor). The advisor has been managing investment companies since 1958 and is headquartered at 4500 Main Street, Kansas City, Missouri 64111.

The advisor is responsible for managing the investment portfolio of the fund and directing the purchase and sale of its investment securities. The advisor also arranges for transfer agency, custody and all other services necessary for the fund to operate.

For the services it provides to the fund, the advisor receives a unified management fee based on a percentage of the daily net assets of the fund at the annual rate of [ ]%. The amount of the fee is calculated daily and paid monthly in arrears. The advisor pays all expenses of managing and operating the fund, other than the management fee payable to the advisor, brokerage and other transaction fees and expenses relating to the acquisition and disposition of portfolio securities, acquired fund fees and expenses, interest, taxes, the fees and expenses of the independent trustees (including counsel fees) litigation expenses, extraordinary expenses, and expenses incurred in connection with the provision of shareholder and distribution services under a plan adopted pursuant to Rule 12b-1 under the Investment Company Act (if any). The advisor may pay unaffiliated third parties who provide recordkeeping and administrative services that would otherwise be performed by an affiliate of the advisor.

A discussion regarding the basis for the Board of Trustees' approval of the fund's investment advisory agreement with the advisor will be available on the fund's website and filed on the fund's Form N-CSR for the fiscal period ended [ ].

**The Fund Management Team**

The advisor uses teams of portfolio managers and analysts, organized by broad investment categories such as money markets, corporate bonds, government bonds and municipal bonds, in its management of fixed-income funds. Designated portfolio managers serve on the firm's Global Fixed Income Investment Committee, which is responsible for periodically adjusting the fund's dynamic investment parameters based on economic and market conditions. All portfolio managers listed below are responsible for security selection and portfolio construction for the fund within these parameters, as well as compliance with stated investment objectives and cash flow monitoring. Other members of the investment team provide research and analytical support but generally do not make day-to-day investment decisions for the fund.

The individuals listed below are jointly and primarily responsible for the day-to-day management of the fund described in this prospectus.

**Paul Norris (Global Fixed Income Investment Committee Representative)**

Paul Norris, Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since joining American Century Investments in 2023. Prior to joining American Century, Mr. Norris was the Managing Director and Head of Structured Products at Conning Asset Management. He has a bachelor's of science in business administration from Towson University and an MBA in finance from The University of Maryland.

**Michael Waggaman**

Mr. Waggaman, Portfolio Manager, has served on teams managing fixed-income investments since joining the advisor in 2021. Prior to joining American Century Investments, Mr. Waggaman was most recently an Investment Director at Aberdeen Standard Investments from 2006 to 2021. He has a bachelor's degree in sociology from the University of Chicago.

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**Fundamental Investment Policies**

Shareholders must approve any change to the fundamental investment policies contained in the statement of additional information. The Board of Trustees and/or the advisor may change any other policies, including the fund's investment objective, or investment strategies described in this prospectus or otherwise used in the operation of the fund at any time, subject to applicable notice provisions.

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**Investing in the Fund**

**Buying and Selling Shares**

Shares of the fund may be acquired or redeemed directly from the fund only in Creation Units or multiples thereof, as discussed below. Only an authorized participant may engage in creation and redemption transactions directly with the fund. Once created, shares of the fund generally trade in the secondary market in amounts less than a Creation Unit.

Shares of the fund are listed on a national securities exchange for trading during the trading day. Shares can be bought and sold throughout the trading day like shares of other publicly traded companies. American Century ETF Trust (the trust) does not impose any minimum investment for shares of the fund purchased on an exchange. Shares of the fund trade under the following ticker symbol: ASEC.

Buying or selling fund shares on an exchange involves two types of costs that may apply to all securities transactions. When buying or selling shares of the fund through a broker, you will likely incur a brokerage commission or other charges determined by your broker. The commission is frequently a fixed amount and may be a significant proportional cost for investors seeking to buy or sell small amounts of shares. In addition, you may incur the cost of the "spread," that is, any difference between the bid price and the ask price. The spread varies over time for shares of the fund based on the fund's trading volume and market liquidity, and is generally lower if the fund has a lot of trading volume and market liquidity, and higher if the fund has little trading volume and market liquidity.

The fund's primary listing exchange is the NASDAQ Stock Market LLC, which is open for trading Monday through Friday and is closed on weekends and the following holidays: New Year's Day, Martin Luther King, Jr. Day, Washington's Birthday, Good Friday, Memorial Day, Juneteenth National Independence Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.

**Book Entry**

Shares of the fund are held in book-entry form, which means that no share certificates are issued. The Depository Trust Company (DTC) or its nominee is the record owner of all outstanding shares of the fund and is recognized as the owner of all shares for all purposes.

Investors owning shares of the fund are beneficial owners as shown on the records of DTC or its participants. DTC serves as the securities depository for shares of the fund. DTC participants include securities brokers and dealers, banks, trust companies, clearing corporations and other institutions that directly or indirectly maintain a custodial relationship with DTC. As a beneficial owner of shares, you are not entitled to receive physical delivery of stock certificates or to have shares registered in your name, and you are not considered a registered owner of shares. Therefore, to exercise any right as an owner of shares, you must rely upon the procedures of DTC and its participants. These procedures are the same as those that apply to any other securities that you hold in book-entry or "street name" form.

**Frequent Trading Practices**

The Board of Trustees has not adopted a policy of monitoring for frequent purchases and redemptions of fund shares (frequent trading). The Board of Trustees believes that a frequent trading policy is unnecessary because fund shares are listed for trading on a national securities exchange. Therefore, it is unlikely that a shareholder could take advantage of a potential arbitrage opportunity presented by a lag between a change in the value of the fund's portfolio securities after the close of the primary markets for the fund's portfolio securities and the reflection of that change in the fund's NAV (market timing), because the fund generally sells and redeems its shares directly through transactions that are in-kind and/or for cash, subject to the conditions described below under Creations and Redemptions.

**Investments by Other Investment Companies**

Section 12(d)(1) of the Investment Company Act restricts investments by investment companies in the securities of other investment companies. Registered investment companies are permitted to invest in the fund beyond the limits set forth in Section 12(d)(1), subject to certain terms and conditions set forth in SEC rules. In order for an unaffiliated registered investment company to invest in shares of the fund beyond the limitations of Section 12(d)(1) pursuant to Rule 12d1-4, the registered investment company must enter into an agreement with the trust.

**Creations and Redemptions**

Prior to trading in the secondary market, shares of the fund are "created" at NAV by market makers, large investors and institutions only in block-size units, called "Creation Units." All orders to purchase Creation Units must be placed by or through an authorized participant that has entered into an authorized participant agreement (AP Agreement) with Foreside Fund Services, LLC (the distributor). Only an authorized participant may create or redeem Creation Units directly with the fund.

A creation transaction, which is subject to acceptance by the trust, generally takes place when an authorized participant deposits into the fund a designated portfolio of securities and/or cash (which may include cash in lieu of certain securities) in exchange for a

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specified number of Creation Units. With respect to the fund, these deposits are generally in cash. Similarly, shares can be redeemed only in Creation Units, generally for a designated portfolio of securities and/or cash (which may include cash in lieu of certain securities). With respect to the fund, redemptions are generally on an in-kind basis, but the fund reserves the right to meet redemptions in cash. Except when aggregated in Creation Units, shares are not redeemable by the fund.

The prices at which creations and redemptions occur are based on the next calculation of NAV after a creation or redemption order is received in a proper form under the AP Agreement. The portfolio of securities required for purchase of a Creation Unit is generally the same as the portfolio of securities the fund will deliver upon redemption of fund shares, except under certain circumstances. As a result of any system failure or other interruption, creation or redemption orders either may not be executed according to the fund's instructions or may not be executed at all, or the fund may not be able to place or change such orders.

Creations and redemptions must be made through a firm that is either a broker-dealer or other participant in the Continuous Net Settlement System of the National Securities Clearing Corporation or a DTC participant and, in either case, has executed an AP Agreement with the distributor. Information about the procedures regarding creations and redemptions of Creation Units (including the cut-off times for receipt of creation and redemption orders) is included in the fund's statement of additional information (SAI).

Because new shares may be created and issued on an ongoing basis, at any point during the life of the fund a "distribution," as such term is used in the Securities Act of 1933 (Securities Act), may be occurring. Broker-dealers and other persons are cautioned that some activities on their part may, depending on the circumstances, result in their being deemed participants in a distribution in a manner that could render them statutory underwriters and subject to the prospectus delivery and liability provisions of the Securities Act. Any determination of whether one is an underwriter must take into account all the relevant facts and circumstances of each particular case.

Broker-dealers should also note that dealers who are not "underwriters" but are participating in a distribution (as contrasted to ordinary secondary transactions), and thus dealing with shares that are part of an "unsold allotment" within the meaning of Section 4(a)(3)(C) of the Securities Act, would be unable to take advantage of the prospectus delivery exemption provided by Section 4(a)(3) of the Securities Act. For delivery of prospectuses to exchange members, the prospectus delivery mechanism of Rule 153 under the Securities Act is available only with respect to transactions on a national securities exchange.

In addition, certain affiliates of the fund and the advisor may purchase and resell fund shares pursuant to this prospectus.

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**Share Price and Distributions**

**Share Price**

The price of fund shares is based on market price. The trading prices of the fund's shares in the secondary market generally differ from the fund's daily NAV and are affected by market forces such as supply and demand, economic conditions and other factors.

**Calculation of NAV**

American Century Investments will price the fund shares purchased or redeemed by authorized participants based on the ***net asset value*** (NAV) next determined after an order is received in good order by the fund's transfer agent. We determine the NAV of the fund as of the close of regular trading (usually 4 p.m. Eastern time) on the New York Stock Exchange (NYSE) on each day the NYSE is open. On days when the NYSE is closed (including certain U.S. national holidays), we do not calculate the NAV.

*The* ***net asset value****, or NAV, of the fund is the current value of the fund's assets, minus any liabilities, divided by the number of shares of the fund outstanding.*<br>

The value of the securities and other assets and liabilities held by the fund are determined by the advisor, as the valuation designee, pursuant to its valuation policies and procedures. The fund's Board of Trustees oversees the valuation designee and at least annually reviews its valuation policies and procedures. Valuations are determined in accordance with applicable federal securities laws and accounting principles generally accepted in the United States.

Portfolio securities for which market quotations are readily available are valued at their market price. If the valuation designee determines that the market price for a portfolio security is not readily available or is believed by the valuation designee to be unreliable, such security is valued at fair value as determined in good faith by the valuation designee, in accordance with its policies and procedures.

Fixed income securities are generally valued using prices obtained from approved independent pricing services approved by the valuation designee or market quotations provided by dealers. Pricing services will generally provide evaluated prices based on accepted industry conventions, which may require the service to use its own discretion. Evaluated prices are commonly derived through utilization of market models that take into consideration various market factors, assumptions and security characteristics including, but not limited to, trade data, quotations from broker-dealers and active market makers, relevant yield curve and spread data, related sector levels, creditworthiness, trade data or market information on comparable securities and other relevant security-specific information. The use of different models or inputs may result in pricing services determining a different price for the same security. The methods used by the pricing services and the valuations so established are reviewed by the valuation designee under the oversight of the Board of Trustees.

Debt obligations with 60 days or less remaining until maturity may be valued at amortized cost.

If the valuation designee determines that the valuation methods mentioned above do not reflect the security's fair value, the valuation designee will use other valuation methodologies to value a security if the fair valuation would materially impact the fund's NAV. While fair value determinations involve judgments that are inherently subjective, these determinations are made in good faith in accordance with the valuation designee's valuation policies and procedures.

The effect of using fair value determinations is that the fund's NAV will be based, to some degree, on security valuations that the valuation designee reasonably believes are fair rather than being solely determined by the market.

With respect to any portion of the fund's assets that are invested in other mutual funds, the fund's NAV will be calculated based upon the NAVs of such mutual funds. These mutual funds are required to explain the circumstances under which they will use fair value pricing and the effects of using fair value pricing in their prospectuses.

Trading of securities in foreign markets may not take place every day the NYSE is open. Also, trading in some foreign markets and on some electronic trading networks may take place on weekends or holidays when the fund's NAV is not calculated. So, the value of the fund's portfolio may be affected on days when you will not be able to purchase or sell fund shares.

**Distributions**

Federal tax laws require the fund to make distributions to its shareholders in order to qualify as a regulated investment company. Qualification as a regulated investment company means the fund should not be subject to state or federal income tax on amounts distributed. The distributions generally consist of dividends and interest received by the fund, as well as ***capital gains*** realized by the fund on the sale of its investment securities.

***Capital gains*** *are increases in the values of capital assets, such as stocks or bonds, from the time the assets are purchased.*<br>

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The fund generally expects to pay distributions from net income, if any, monthly. The fund generally pays distributions from realized capital gains, if any, once a year. It may make more frequent distributions if necessary to comply with Internal Revenue Code provisions.

Although dividends generally will be treated as distributed when paid, any dividend declared by a fund in October, November or December and payable to shareholders of record in such a month that is paid during the following January will be treated for U.S. federal income tax purposes as received by shareholders on December 31 of the calendar year in which it was declared.

Dividend payments are made through DTC participants and indirect participants to beneficial owners then of record with proceeds received from the fund. Distributions may be automatically reinvested in whole fund shares only if you purchased the shares through a broker that makes such option available.

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**Taxes**

Some of the tax consequences of owning shares of the fund will vary depending on whether you own them through a taxable or tax-deferred account. Distributions by the fund of dividend and interest income, capital gains and other income it has generated through its investment activities will generally be taxable to shareholders who hold shares in a taxable account. Tax consequences also may result when investors sell fund shares.

**Tax-Deferred Accounts**

If you purchase fund shares through a tax-deferred account, such as an IRA or employer-sponsored retirement plan, income and capital gains distributions usually will not be subject to current taxation but will accumulate in your account under the plan on a tax-deferred basis. Likewise, moving from one fund to another fund within a plan or tax-deferred account generally will not cause you to be taxed. For information about the tax consequences of making purchases or withdrawals through a tax-deferred account, please consult your plan administrator, your summary plan description or a tax advisor.

**Taxable Accounts**

If you own fund shares through a taxable account, you may be taxed on your investments if the fund makes distributions or if you sell your fund shares.

**Taxability of Distributions**

Fund distributions may consist of income, such as dividends and interest earned by the fund from its investments, or capital gains generated by the fund from the sale of investment securities. Distributions of income are taxed as ordinary income, unless they are designated as ***qualified dividend income*** and you meet a minimum required holding period with respect to your shares of the fund, in which case distributions of income are taxed at the same rates as long-term capital gains.

***Qualified dividend income*** *is a dividend received by a fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period and the stock was not on loan at the time of the dividend.*<br>

The tax character of any distributions from capital gains is determined by how long the fund held the underlying security that was sold, not by how long you have been invested in the fund or whether you reinvest your distributions or take them in cash. Short-term (one year or less) capital gains are taxable as ordinary income. Gains on securities held for more than one year are taxed at the lower rates applicable to long-term capital gains.

If a fund's distributions exceed current and accumulated earnings and profits, such excess will generally be considered a return of capital. A return of capital distribution is generally not subject to tax, but will reduce your cost basis in the fund and result in higher realized capital gains (or lower realized capital losses) upon the sale of fund shares.

You will receive information regarding the tax character of fund distributions for each calendar year in an annual tax mailing.

If you meet specified income levels, you will also be subject to a 3.8% Medicare contribution tax which is imposed on net investment income, including interest, dividends and capital gains. Distributions also may be subject to state and local taxes. Because everyone's tax situation is unique, you may want to consult your tax professional about federal, state and local tax consequences.

**Taxes on Transactions**

Your sales of fund shares are subject to capital gains tax. Short-term capital gains are gains on fund shares you held for 12 months or less. Long-term capital gains are gains on fund shares you held for more than 12 months. If your shares decrease in value, their sale will result in a long-term or short-term capital loss. However, you should note that loss realized upon the sale of shares held for six months or less will be treated as a long-term capital loss to the extent of any distribution of long-term capital gain to you with respect to those shares. If a loss is realized on the sale of fund shares, the reinvestment in additional fund shares within 30 days before or after the sale may be subject to the wash sale rules of the Internal Revenue Code. This may result in a postponement of the recognition of such loss for federal income tax purposes.

If you have not certified that your Social Security number or tax identification number is correct and that you are not subject to withholding, you may be subject to backup withholding at the applicable federal withholding tax rate on taxable dividends, capital gains distributions and proceeds from the sale of fund shares.

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**Taxes on Creations and Redemptions of Creation Units** 

An Authorized Participant who exchanges securities for Creation Units generally will recognize a gain or a loss equal to the difference between the market value of the Creation Units at the time and the sum of the exchanger's aggregate basis in the securities surrendered plus the amount of cash paid for such Creation Units. A person who redeems Creation Units will generally recognize a gain or loss equal to the difference between the exchanger's basis in the Creation Units and the sum of the aggregate market value of any securities received plus the amount of any cash received for such Creation Units. The IRS, however, may assert that a loss realized upon an exchange of securities for Creation Units cannot be deducted currently under the rules governing "wash sales," or on the basis that there has been no significant change in economic position.

Any capital gain or loss realized upon the creation of Creation Units will generally be treated as long-term capital gain or loss if the securities exchanged for such Creation Units have been held for more than one year. Any capital gain or loss realized upon the redemption of Creation Units will generally be treated as long-term capital gain or loss if the shares comprising the Creation Units have been held for more than one year. Otherwise, such capital gains or losses will generally be treated as short-term capital gain or loss. Any loss upon a redemption of Creation Units held for six months or less will be treated as a long-term capital loss to the extent of any amounts treated as distributions to the applicable Authorized Participant of long-term capital gain with respect to the Creation Units (including any amounts credited to the Authorized Participant as undistributed capital gains).

If a fund redeems Creation Units in cash, it may recognize more capital gains than it will if it redeems Creation Units in-kind.

**Buying a Dividend**

Purchasing fund shares in a taxable account shortly before a distribution is sometimes known as buying a dividend. In taxable accounts, you must pay income taxes on the distribution whether you reinvest the distribution or take it in cash. In addition, you will have to pay taxes on the distribution whether the value of your investment decreased, increased or remained the same after you bought the fund shares.

The risk in buying a dividend is that a fund's portfolio may build up taxable income and gains throughout the period covered by a distribution, as income is earned and securities are sold at a profit. The fund distributes the income and gains to you, after subtracting any losses, even if you did not own the shares when the income was earned or the gains occurred.

If you buy a dividend, you incur the full tax liability of the distribution period, but you may not enjoy the full benefit of the income earned or the gains realized in the fund's portfolio.

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**Additional Information**

**Service, Distribution and Administrative Fees**

Investment Company Act Rule 12b-1 permits investment companies that adopt a written plan to pay certain expenses associated with the distribution of their shares out of fund assets. The Board of Trustees has adopted a 12b-1 plan that allows the fund to pay annual fees not to exceed 0.25% to the distributor for distribution and individual shareholder services. However, the Board of Trustees has determined not to authorize payment of a 12b-1 plan fee at this time.

Because these fees may be used to pay for services that are not related to prospective sales of the fund, to the extent that a fee is authorized, the fund will continue to make payments under its plan even if it is closed to new investors. Because these fees are paid out of the fund's assets on an ongoing basis, to the extent that a fee is authorized, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges.

The advisor or its affiliates may make payments to intermediaries for various additional services, other expenses and/or the intermediaries' distribution of the fund out of their profits or other available sources. Such payments may be made for one or more of the following: (1) distribution, which may include expenses incurred by intermediaries for their sales activities with respect to the fund, such as preparing, printing and distributing sales literature and advertising materials and compensating registered representatives or other employees of such financial intermediaries for their sales activities, as well as the opportunity for the fund to be made available by such intermediaries; (2) shareholder services, such as providing individual and custom investment advisory services to clients of the financial intermediaries; and (3) marketing and promotional services, including business planning assistance, educating personnel about the fund, and sponsorship of sales meetings, which may include covering costs of providing speakers, meals and other entertainment. The advisor may pay partnership and/or sponsorship fees to support seminars, conferences, and other programs designed to educate intermediaries about the fund and may cover the expenses associated with attendance at such meetings, including travel costs. The advisor and its affiliates may also pay fees related to obtaining data regarding intermediary or financial advisor activities to assist American Century with sales reporting, business intelligence and training and education opportunities. These payments and activities are intended to provide an incentive to intermediaries to sell the fund by educating them about the fund and helping defray the costs associated with offering the fund. These payments may create a conflict of interest by influencing the intermediary to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information. The amount of any payments described in this paragraph is determined by the advisor or its affiliates, and all such amounts are paid out of their available assets, and not paid by you or the fund. As a result, the total expense ratio of the fund will not be affected by any such payments.

**Financial Highlights**

There is no financial information for the fund because it is a new fund.

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**Where to Find More Information**

**Annual and Semiannual Reports**

Additional information about the fund's investments will be available in the fund's annual and semiannual reports to shareholders and in Form N-CSR. In the fund's annual report, you will find a discussion of the market conditions and investment strategies that significantly affected the fund's performance during its last fiscal year. In Form N-CSR, you will find the fund's annual and semiannual financial statements.

**Statement of Additional Information (SAI)**

The SAI contains a more detailed legal description of the fund's operations, investment restrictions, policies and practices. The <u>[SAI](#i5fa96f0a437f41ae9e34fd9e3c4bc9f0_358)</u> is incorporated by reference into this prospectus. This means that it is legally part of this prospectus, even if you don't request a copy.

You may obtain a free copy of the SAI, annual reports and semiannual reports, and other information such as fund financial statements, and you may ask questions about the fund or your accounts, online at americancentury.com, by contacting American Century Investments at the addresses or telephone numbers listed below or by contacting your financial intermediary.

**The Securities and Exchange Commission (SEC)**

Reports and other information about the fund are available on the EDGAR database on the SEC's website at sec.gov, and copies of this information may be obtained, after paying a duplicating fee, by electronic request at the following email address: publicinfo@sec.gov.

***This prospectus shall not constitute an offer to sell securities of the fund in any state, territory, or other jurisdiction where the fund's shares have not been registered or qualified for sale, unless such registration or qualification is not required, or under any circumstances in which such offer or solicitation would be unlawful.***

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| |
|:---|
| **American Century Investments**<br>americancentury.com |
| Financial Professionals<br>P.O. Box 419385<br>Kansas City, Missouri 64141-6385<br>833-ACI-ETFS |

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Investment Company Act File No. 811-23305

CL-PRS-[ ] 2602

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*The information in this statement of additional information is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This statement of additional information is not an offer to sell these securities and is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.*

[ ], 2026

**American Century Investments**

Statement of Additional Information

**American Century ETF Trust**

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| | | |
|:---|:---|:---|
| | **Ticker:** | **Exchange:** |
| **American Century**<sup>®</sup> **California Municipal Bond ETF** | **CATF** | **NYSE Arca, Inc.** |
| **American Century**<sup>®</sup> **Diversified Corporate Bond ETF** | **KORP** | **NYSE Arca, Inc.** |
| **American Century**<sup>®</sup> **Diversified Municipal Bond ETF** | **TAXF** | **NYSE Arca, Inc.** |
| **American Century**<sup>®</sup> **Multisector Floating Income ETF** | **FUSI** | **NYSE Arca, Inc.** |
| **American Century**<sup>®</sup> **Multisector Income ETF** | **MUSI** | **NYSE Arca, Inc.** |
| **American Century**<sup>®</sup> **Quality Diversified International ETF** | **QINT** | **NYSE Arca, Inc.** |
| **American Century**<sup>®</sup> **Securitized Credit ETF** | **XXXX** | **NYSE Arca, Inc.** |
| **American Century**<sup>®</sup> **Select High Yield ETF** | **AHYB** | **NYSE Arca, Inc.** |
| **American Century**<sup>®</sup> **Short Duration Strategic Income ETF** | **SDSI** | **The NASDAQ Stock Market LLC** |
| **American Century**<sup>®</sup> **Small Cap Growth Insights ETF** | **ACSG** | **Cboe BZX Exchange, Inc.** |
| **American Century**<sup>®</sup> **Small Cap Value Insights ETF** | **ACSV** | **Cboe BZX Exchange, Inc.** |
| **American Century**<sup>®</sup> **U.S. Quality Growth ETF** | **QGRO** | **NYSE Arca, Inc.** |
| **American Century**<sup>®</sup> **U.S. Quality Value ETF** | **VALQ** | **NYSE Arca, Inc.** |

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| | |
|:---|:---|
| ***This statement of additional information adds to the discussion in the funds' prospectuses dated January 1, 2026 and [ ], 2026, but is not a prospectus. The statement of additional information should be read in conjunction with the funds' current prospectuses. If you would like a copy of a prospectus, please contact us at one of the addresses or telephone numbers listed on the back cover or visit American Century Investments' website at americancentury.com.*** | ![aci_horizxrgbxblackcroppeda.jpg](aci_horizxrgbxblackcroppeda.jpg) |
| ***This statement of additional information incorporates by reference certain information that appears in the funds' financial statements, which are included in the funds' Form N-CSR. You may obtain a free copy of the funds' annual reports, as well as financial statements and other information, by calling 833-ACI-ETFS.*** | ![aci_horizxrgbxblackcroppeda.jpg](aci_horizxrgbxblackcroppeda.jpg) |

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©2026 American Century Proprietary Holdings, Inc. All rights reserved.

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**Table of Contents**

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| | |
|:---|:---|
| **The Funds' History** | **2** |
| **Exchange Listing and Trading** | **2** |
| **Fund Investment Guidelines** | **3** |
| **Fund Investments and Risks** | **4** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Investment Strategies and Risks | 4 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Investment Policies | 34 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Temporary Defensive Measures | 35 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Portfolio Turnover | 36 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Disclosure of Portfolio Holdings | 36 |
| **Management** | **37** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Board of Trustees | 37 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Officers | 40 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Code of Ethics | 41 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Proxy Voting Policies | 41 |
| **The Funds' Principal Shareholders** | **41** |
| **Creation and Redemption of Creation Units** | **42** |
| **Service Providers** | **49** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Investment Advisor | 49 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Portfolio Managers | 51 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Transfer Agent | 56 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Administrator | 56 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sub-Administrator | 56 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Distributor | 56 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Custodian Bank | 57 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Securities Lending Agent | 57 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Independent Registered Public Accounting Firm | 58 |
| **Brokerage Allocation** | **58** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Regular Broker-Dealers | 60 |
| **Information About Fund Shares** | **61** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Valuation of a Fund's Securities | 61 |
| **Taxes** | **62** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Federal Income Taxes | 62 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;State and Local Taxes | 66 |
| **Financial Statements** | **66** |
| **Appendix A - Principal Shareholders** | **A-1** |
| **Appendix B - Explanation of Fixed-Income Securities Ratings** | **B-1** |
| **Appendix C - Proxy Voting Policies** | **C-1** |

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**The Funds' History**

American Century ETF Trust is a registered open-end management investment company that was organized as a Delaware statutory trust on June 27, 2017. Throughout this statement of additional information (SAI) we refer to American Century ETF Trust as the trust.

Each fund described in this SAI (each, a "fund" and together, the "funds") is a separate series of the trust. Each fund has its own investment objective, strategies, assets, and tax identification and stock registration numbers.

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| | | |
|:---|:---|:---|
| *Fund/Class* | *Ticker Symbol* | *Inception Date* |
| American Century California Municipal Bond ETF | CATF | 07/16/2024 |
| American Century Diversified Corporate Bond ETF | KORP | 01/11/2018 |
| American Century Diversified Municipal Bond ETF | TAXF | 09/10/2018 |
| American Century Multisector Floating Income ETF | FUSI | 03/14/2023 |
| American Century Multisector Income ETF | MUSI | 06/29/2021 |
| American Century Quality Diversified International ETF | QINT | 09/10/2018 |
| American Century Securitized Credit ETF | [ ] |  |
| American Century Select High Yield ETF | AHYB | 11/16/2021 |
| American Century Short Duration Strategic Income ETF | SDSI | 10/11/2022 |
| American Century Small Cap Growth Insights ETF | ACSG | 10/16/2025 |
| American Century Small Cap Value Insights ETF | ACSV | 10/16/2025 |
| American Century U.S. Quality Growth ETF | QGRO | 09/10/2018 |
| American Century U.S. Quality Value ETF | VALQ | 01/11/2018 |

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The funds offer and issue shares at their net asset value per share (NAV) only in aggregations of a specified number of shares (a Creation Unit), generally in exchange for a designated portfolio of securities (including any portion of such securities for which cash may be substituted) (Deposit Securities), together with the deposit of a specified cash payment (Cash Component). Shares of each fund (except American Century Short Duration Strategic Income ETF, American Century Small Cap Growth Insights ETF and American Century Small Cap Value Insights ETF) are listed for trading on NYSE Arca, Inc. (NYSE Arca), a national securities exchange. Shares of American Century Small Cap Growth Insights ETF and American Century Small Cap Value Insights ETF are listed for trading on Cboe BZX Exchange, Inc. (Cboe). Shares of American Century Short Duration Strategic Income ETF are listed for trading on The NASDAQ Stock Market LLC (NASDAQ). NYSE Arca, Cboe, and NASDAQ are each referred to as a Listing Exchange. Shares of each fund are traded in the secondary market and elsewhere at market prices that may be at, above or below the fund's NAV. Shares of each fund are redeemable only in Creation Units, generally in exchange for portfolio securities and a Cash Component.

The trust reserves the right to permit or require that creations and redemptions of shares are effected fully or partially in cash. Shares may be issued in advance of receipt of Deposit Securities, subject to various conditions, including a requirement to maintain with the trust a cash deposit at least equal to, and up to 115% of, the market value of the omitted Deposit Securities, which percentage the trust may change from time to time. See *Creation and Redemption of Creation Units* on page 42 of this SAI. Transaction fees and other costs associated with creations or redemptions that include a cash portion may be higher than the transaction fees and other costs associated with in-kind creations or redemptions. In all cases, transaction fees will be limited in accordance with the requirements of U.S. Securities and Exchange Commission (SEC) rules and regulations applicable to management investment companies offering redeemable securities.

**Exchange Listing and Trading**

A discussion of exchange listing and trading matters associated with an investment in each fund is contained in the *Investing in the Fund* section of that fund's prospectus. The discussion below supplements, and should be read in conjunction with, that section of each prospectus.

Shares of the funds are listed for trading, and trade throughout the day, on the Listing Exchange and in other secondary markets. Shares of the funds may also be listed on certain non-U.S. exchanges. There can be no assurance that the requirements of the Listing Exchange necessary to maintain the listing of shares of the fund will continue to be met. NYSE Arca may, but is not required to, remove the shares of a fund from listing if (i) NYSE Arca becomes aware that the fund is no longer eligible to operate in reliance on Rule 6c-11 of the Investment Company Act of 1940 (Investment Company Act); (ii) the fund no longer complies with NYSE Arca's requirements for exchange-traded fund shares; (iii) following the initial 12-month period beginning upon the commencement of

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trading of fund shares, there are fewer than 50 beneficial owners of shares of the fund; or (iv) any other event shall occur or condition shall exist that, in the opinion of NYSE Arca, makes further dealings on NYSE Arca inadvisable. Cboe will consider the suspension of trading in, and will commence delisting proceedings under any of the following circumstances: (i) if Cboe becomes aware that the fund is no longer eligible to operate in reliance on Rule 6c-11 under the Investment Company Act; (ii) if any of the other listing requirements are not continuously maintained; (iii) if, following the initial twelve month period after commencement of trading, there are fewer than 50 beneficial holders of the fund for 30 or more consecutive trading days; or (iv) if such other event shall occur or condition exists which, in the opinion of the Cboe, makes further dealings on Cboe inadvisable. NASDAQ will consider the suspension of trading in, and will initiate delisting proceedings under any of the following circumstances (i) if NASDAQ becomes aware that the series of the fund is no longer eligible to operate in reliance on Rule 6c-11 of the Investment Company Act; (ii) if, following the initial twelve month period after commencement of trading the fund has fewer than 50 beneficial holders; (iii) if any of the other NASDAQ requirements for exchange-traded fund shares are not continuously maintained; or (iv) if such other event shall occur or condition exists which in the opinion of NASDAQ, makes further dealings on NASDAQ inadvisable. The Listing Exchange will also remove shares of a fund from listing and trading upon termination of the fund.

As in the case of other publicly traded securities, when you buy or sell shares through a broker, you will incur a brokerage commission determined by that broker.

To provide additional information regarding the indicative value of shares of a fund, the Listing Exchange or a market data vendor may disseminate an updated Indicative Optimized Portfolio Value (IOPV) for the funds as calculated by an information provider or market data vendor every 15 seconds through the facilities of the Consolidated Tape Association, or through other widely disseminated means. The trust is not involved in or responsible for any aspect of the calculation or dissemination of the IOPVs and makes no representation or warranty as to the accuracy of the IOPVs.

Where available, the IOPVs of the funds are based on the market value of the Deposit Securities or portfolio securities and the Cash Component. An IOPV does not necessarily reflect the best possible valuation of the current portfolio of securities held by a fund and may not be calculated in the same manner as the NAV. While the IOPV reflects the current value of the Deposit Securities required to be deposited in connection with the purchase of a Creation Unit, it does not necessarily reflect the precise composition of the current portfolio of securities held by a fund at a particular point in time because the current portfolio of the fund may include securities that are not a part of the current Deposit Securities. Therefore, a fund's IOPV disseminated during the Listing Exchange trading hours should not be viewed as a real-time update of its NAV, which is calculated only once a day. IOPVs are not calculated by the fund.

The cash component included in an IOPV may consist of other assets held by a fund, including cash, estimated accrued interest, dividends and other income, less expenses. If applicable, each IOPV also reflects changes in currency exchange rates between the U.S. dollar and the applicable currency.

The trust reserves the right to adjust the share prices of a fund in the future to maintain convenient trading ranges for investors. Any adjustments would be accomplished through stock splits or reverse stock splits, which would have no effect on the net assets of the fund or an investor's equity interest in the fund.

**Fund Investment Guidelines**

This section explains the extent to which the funds' advisor, American Century Investment Management, Inc. (ACIM or the advisor), can use various investment vehicles and strategies in managing a fund's assets. Descriptions of the investment techniques and risks associated with each appear in the section, *Investment Strategies and Risks*, which begins on page 4. In the case of the funds' principal investment strategies, these descriptions elaborate upon discussions contained in the prospectuses.

The American Century Quality Diversified International ETF, American Century U.S. Quality Growth ETF, and American Century U.S. Quality Value ETF are index-based exchange-traded funds (ETFs) and are not actively managed. Adverse performance of a security in a fund's portfolio will ordinarily not result in the elimination of the security from the fund's portfolio. Under normal market conditions, the funds invest at least 80% of their assets, exclusive of collateral held from securities lending, in the component securities of their underlying indexes. The funds may invest in cash and cash equivalents, including shares of affiliated money market funds, as well as in securities not included in the underlying index, but which ACIM believes will help the funds track their underlying indexes. The funds may invest in securities of affiliated companies approximately in proportion to the percentage such securities represent on their respective indexes. The funds may use a representative sampling strategy whereby the funds would invest in what they believe to be a representative sample of the component securities included of their underlying indexes. Under the representative sampling technique, the portfolio managers will select securities that collectively have an investment profile similar to that of the underlying index, including securities that resemble those included in the underlying index in terms of risk factors, performance attributes and other characteristics, such as market capitalization and industry weights. To the extent the funds use representative sampling, they may not hold all of the securities that are in their underlying indexes or they may hold other securities that are not included in their underlying indexes.

The American Century California Municipal Bond ETF, American Century Diversified Corporate Bond ETF, American Century Diversified Municipal Bond ETF, American Century Multisector Floating Income ETF, American Century Multisector Income ETF,

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American Century Securitized Credit ETF, American Century Select High Yield ETF and American Century Short Duration Strategic Income ETF are actively managed ETFs that invest as described in their respective prospectuses. In general, within the restrictions outlined here and in the funds' prospectuses, the portfolio managers have broad powers to decide how to invest fund assets. Investments in the fund vary according to what is judged advantageous under changing economic conditions. It is the advisor's policy to retain maximum flexibility in management without restrictive provisions as to the proportion of one or another class of securities that may be held, subject to the investment restrictions described on the following pages.

In addition to the main types of investments and strategies undertaken by the funds as described in the prospectuses, the funds also may invest in other types of instruments and engage in and pursue other investment strategies, which are described in this SAI. Investments and investment strategies with respect to the funds are discussed in greater detail in the section below entitled *Investment Strategies and Risks*.

Incidental to a fund's other investment activities, including in connection with a bankruptcy, restructuring, workout, or other extraordinary events concerning a particular investment a fund owns, the fund may receive securities (including convertible securities, warrants and rights), real estate or other investments that the fund normally would not, or could not, buy. If this happens, the fund may, although it is not required to, sell such investments as soon as practicable while seeking to maximize the return to shareholders.

The funds are diversified as defined in the Investment Company Act. Diversified means that, with respect to 75% of its total assets, each fund will not invest more than 5% of its total assets in the securities of a single issuer or own more than 10% of the outstanding voting securities of a single issuer (other than the U.S. government and securities of other investment companies).

To meet federal tax requirements for qualification as a regulated investment company, each fund must limit its investments so that at the close of each quarter of its taxable year (1) no more than 25% of its total assets are invested in the securities of a single issuer (other than the U.S. government or a regulated investment company), and (2) with respect to at least 50% of its total assets, no more than 5% of its total assets are invested in the securities of a single issuer (other than the U.S. government or a regulated investment company) and it does not own more than 10% of the outstanding voting securities of a single issuer.

Unless otherwise noted, all investment restrictions described below and in each fund's prospectus are measured at the time of the transaction in the security. If market action affecting fund securities (including, but not limited to, appreciation, depreciation or a credit rating event) causes a fund to exceed an investment restriction, the advisor is not required to take immediate action. Under normal market conditions, however, the advisor's policies and procedures indicate that the advisor will not make any purchases that will make the fund further outside the investment restriction.

**Fund Investments and Risks**

**Investment Strategies and Risks**

This section describes investment vehicles and techniques the portfolio managers can use in managing a fund's assets. It also details the risks associated with each, because each investment vehicle and technique contributes to a fund's overall risk profile.

**Asset-Backed Securities (ABS)**

ABS are structured like mortgage-backed securities, but instead of mortgage loans or interest in mortgage loans, the underlying assets may include, for example, such items as motor vehicle installment sales or installment loan contracts, leases of various types of real and personal property, home equity loans, student loans, small business loans, and receivables from credit card agreements. The ability of an issuer of ABS to enforce its security interest in the underlying assets may be limited. The value of an ABS is affected by changes in the market's perception of the assets backing the security, the creditworthiness of the servicing agent for the loan pool, the originator of the loans, the financial institution providing any credit enhancement, and subordination levels.

Payments of principal and interest passed through to holders of ABS are typically supported by some form of credit enhancement, such as a letter of credit, surety bond, limited guarantee by another entity or a priority to certain of the borrower's other securities. The degree of credit enhancement varies, and generally applies to only a fraction of the ABS's par value until exhausted. If the credit enhancement of an ABS held by the fund has been exhausted, and if any required payments of principal and interest are not made with respect to the underlying loans, the fund may experience losses or delays in receiving payment.

Some types of ABS may be less effective than other types of securities as a means of "locking in" attractive long-term interest rates. One reason is the need to reinvest prepayments of principal; another is the possibility of significant unscheduled prepayments resulting from declines in interest rates. These prepayments would have to be reinvested at lower rates. As a result, these securities may have less potential for capital appreciation during periods of declining interest rates than other securities of comparable maturities, although they may have a similar risk of decline in market value during periods of rising interest rates. Prepayments may also significantly shorten the effective maturities of these securities, especially during periods of declining interest rates. Conversely, during periods of rising interest rates, a reduction in prepayments may increase the effective maturities of these securities, subjecting them to a greater risk of decline in market value in response to rising interest rates than traditional debt securities, and therefore potentially increasing the volatility of the fund.

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The risks of investing in ABS are ultimately dependent upon the repayment of loans by the individual or corporate borrowers. Although the fund would generally have no recourse against the entity that originated the loans in the event of default by a borrower, ABS typically are structured to mitigate this risk of default.

ABS are generally issued in more than one class, each with different payment terms. Multiple class ABS may be used as a method of providing credit support through creation of one or more classes whose right to payments is made subordinate to the right to such payments of the remaining class or classes. Multiple classes also may permit the issuance of securities with payment terms, interest rates or other characteristics differing both from those of each other and from those of the underlying assets. Examples include so-called strips (ABS entitling the holder to disproportionate interests with respect to the allocation of interest and principal of the assets backing the security), and securities with classes having characteristics such as floating interest rates or scheduled amortization of principal.

**Bank Loans**

Bank loans include senior secured and unsecured floating rate loans of corporations, partnerships, or other entities. Typically, these loans hold a senior position in the borrower's capital structure, may be secured by the borrower's assets and have interest rates that reset frequently. These loans are usually rated non-investment grade by the rating agencies. An economic downturn generally leads to higher non-payment and default rates by borrowers, and a bank loan can lose a substantial part of its value due to these and other adverse conditions and events. However, as compared to junk bonds, senior floating rate loans are typically senior in the capital structure and are often secured by collateral of the borrower. The fund's investments in bank loans are subject to credit risk, and there is no assurance that the liquidation of collateral would satisfy the claims of the borrower's obligations in the event of non-payment of scheduled interest or principal, or that the collateral could be readily liquidated. The interest rates on many bank loans reset frequently and, therefore, investors are subject to the risk that the return will be less than anticipated when the investment was first made. Most bank loans, like most investment grade bonds, are not traded on any national securities exchange. Bank loans generally have less liquidity than investment grade bonds and there may be less publicly available information about them.

A fund eligible to invest in bank loans may purchase bank loans from the primary market, from other lenders (sometimes referred to as loan assignments) or it may also acquire a participation interest in another lender's portion of the bank loan. Large bank loans to corporations or governments may be shared or syndicated among several lenders, usually commercial or investment banks. The fund may participate in such syndicates, or can buy part of a loan, becoming a direct lender. Participation interests involve special types of risk, including liquidity risk and the risks of being a lender. Risks of being a lender include credit risk (the borrower's ability to meet required principal and interest payments under the terms of the loan), industry risk (the borrower's industry's exposure to rapid change or regulation), financial risk (the effectiveness of the borrower's financial policies and use of leverage), liquidity risk (the adequacy of the borrower's back-up sources of cash), and collateral risk (the sufficiency of the collateral's value to repay the loan in the event of non-payment or default by the borrower). If the fund purchases a participation interest, it may only be able to enforce its rights through the lender, and may assume the credit risk of the lender in addition to the credit risk of the borrower.

In addition, transactions in bank loans may take more than seven days to settle. As a result, the proceeds from the sale of bank loans may not be readily available to make additional investments or to meet the fund's redemption obligations. To mitigate these risks, the fund monitors its short-term liquidity needs in light of the longer settlement period of bank loans. Some bank loan interests may not be registered under the Securities Act of 1933 (1933 Act) and, therefore, not afforded the protections of the federal securities laws.

**Bank Obligations**

Each fund may invest in certain types of bank obligations. Negotiable certificates of deposit (CDs) evidence a bank's obligation to repay money deposited with it for a specified period of time. The following table identifies the types of CDs the funds may buy.

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| | |
|:---|:---|
| ***CD Type*** | ***Issuer*** |
| Domestic | Domestic offices of U.S. banks |
| Yankee | U.S. branches of foreign banks |
| Eurodollar | Issued in London by U.S., Canadian, European and Japanese banks |
| Schedule B | Canadian subsidiaries of non-Canadian banks |

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To the extent permitted by its investment objective and policies, the funds may also buy bankers' acceptances, bank notes and time deposits. Bankers' acceptances are used to finance foreign commercial trade. Issued by a bank with an importer's name on them, these instruments allow the importer to back up its own pledge to pay for imported goods with a bank's obligation to cover the transaction if the importer fails to do so.

Bank notes are senior unsecured promissory notes issued in the United States by domestic commercial banks.

Time deposits are non-negotiable bank deposits maintained for up to seven days at a stated interest rate. These instruments may be withdrawn on demand, although early withdrawals may be subject to penalties.

The bank obligations the portfolio managers may buy generally are not insured by the FDIC or any other insurer.

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**California Municipal Securities**

As noted in the prospectus, American Century California Municipal Bond ETF is susceptible to political, economic and regulatory events that affect issuers of California municipal obligations. These include possible adverse effects of California constitutional amendments, legislative measures, voter initiatives and other matters described below.

The following information about risk factors is provided in view of the fund's policy of focusing its assets in California municipal securities. This information is based on recent official statements relating to securities offerings of California issuers and public information from other sources (California Department of Finance, California Legislative Analyst Office, the Governor's website, and the California Employment Development Department), although it does not constitute a complete description of the risks associated with investing in securities of these issuers. While neither the advisor nor the fund have independently verified the information contained in the official statements, they have no reason to believe the information is inaccurate.

***Population and Economy of the State***

California is the most populous state in the nation, approximately 20% larger than the second-ranked state. The estimate of California's population was 39.2 million residents as of July 2024, which was about 12% of the total United States population. The state's population increased slightly in fiscal year 2023-2024 (from 39.12 million to 39.17 million). It is projected to grow marginally over the long term, albeit more slowly than in the past, to reach a peak of 40.8 million residents by 2050, after which it is expected to decline to 39.6 million by 2070. California's economy, the largest among the 50 states and one of the largest and most diverse in the world, has major components in high technology, trade, entertainment, manufacturing, government, tourism, construction and services. California's economy accounted for nearly 14.4% of the U.S. Gross Domestic Product (GDP) in 2024.

***State Finances***

*<u>Fiscal Year 2025-2026</u>*

The Governor signed the fiscal year 2025-2026 budget on June 27, 2025 (the "2025 Budget"). The 2025 Budget projected an estimated shortfall in the state's General Fund (General Fund) of $11.8 billion for the fiscal year 2025-2026, before corrective actions were taken in the 2025 Budget. The projected shortfall for fiscal year 2025-2026 was addressed in the 2025 Budget by reducing expenditures ($2.8 billion), increasing revenue and borrowing ($7.8 billion), and shifting expenditures from the General Fund to special funds ($1.2 billion). The 2025 Budget provides a balanced fiscal plan that reduces state spending while maintaining support for vital initiatives including housing and infrastructure, universal transitional kindergarten, universal school means, Los Angeles fire recover and growth in Cal Fire personnel. The economy performed better than projected in the 2024 Budget, as reflected in strong stock market performance. Revenues came in higher than projected, however, federal policy and shifting tariffs caused a downgrade in the economic and revenue forecasts. A substantial increase in the costs of the Medi-Cal program, along with other program growth, contributed to the then projected shortfall for fiscal year 2025-2026. The state has large cash reserves, which together with budget solutions adopted in the 2025 Budget, address the projected shortfall and are anticipated to be sufficient to allow operations of the state to continue without any significant projected disruptions.

General Fund revenues and transfers for fiscal year 2025-2026 are projected at $215.7 billion, a decrease of $11 billion, or 5 percent, compared with the revised estimate of $226.7 billion for fiscal year 2024-2025. These General Fund revenues and transfers estimates include a transfer of $4.9 billion from the state's Budget Stabilization Account (BSA) in fiscal year 2024-2025 and a transfer of $7.1 billion from the BSA in fiscal year 2025-2026. These BSA transfers have the effect of lowering (transfer to) or raising (transfer from) reported levels of General Fund revenues and transfers.

The enacted General Fund expenditures for fiscal year 2025-2026 are $228.4 billion; a decrease of $5.2 billion compared with a revised estimate of $233.6 billion for fiscal year 2024-2025.

*<u>Fiscal Year 2024-2025</u>*

The Governor signed the fiscal year 2024-2025 budget on June 26, 2024 (the "2024 Budget") and, on June 29, 2024, the Governor signed a bill with significant amendments to the 2024 Budget. The 2024 Budget projected an estimated shortfall in the General Fund of $46.8 billion for the fiscal year 2024-2025, before the corrective actions taken in the 2024 Budget. This shortfall was largely driven by the substantial decline in the stock market in 2022 that negatively impacted revenues in the fiscal year 2022-2023, as well as the unprecedented delay in critical income tax collections for the tax year 2022.

The projected General Fund shortfall for the fiscal year 2024-2025 was addressed by withdrawing from the BSA ($4.9 billion), suspending a transfer to the BSA ($1.5 billion), withdrawing from the Safety Net Reserve Fund ($900 million), reducing expenditures ($16 billion), increasing revenue ($11.8 billion), internal borrowing ($1.8 billion), delaying spending to future fiscal years ($3.1 billion), shifting expenditures from the General Fund to special funds ($6 billion), and deferring expenditures to fiscal year 2025-2026 or later fiscal years ($2.1 billion, of which $1.6 billion consists of deferring employee payroll costs from June to July).

The General Fund revenues and transfers for fiscal year 2024-2025 were projected at $212.1 billion; an increase of $22.7 billion, or 12%, compared with a revised estimate of $189.4 billion for the fiscal year 2023-2024. These General Fund revenues and transfers estimates included a transfer of $0.9 billion into the BSA in fiscal year 2023-2024, and a transfer of $4.9 billion from the BSA in fiscal year 2024-2025. These BSA transfers have the effect of lowering (transfer to) or raising (transfer from) reported levels of General Fund revenues and transfers.

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The enacted General Fund expenditures for the fiscal year 2024-2025 are $211.5 billion; a decrease of $11.6 billion compared with a revised estimate of $223.1 billion for the fiscal year 2023-2024.

Based on the fiscal year 2024-2025 budget, the state projected ending the fiscal year with the following reserves: Special Fund for Economic Uncertainty at $3.5 billion, Public School System Stabilization Account at $1.1 billion, and BSF at $17.6 billion.

***Constitutional Limitations***

Many California issuers rely on *ad valorem* property taxes as a source of revenue. The taxing powers of California local governments and districts are limited by Article XIIIA of the California Constitution, enacted by voters in 1978 and commonly known as Proposition 13. Proposition 13 limits to 1% of full cash value the rate of ad valorem taxes on real property and restricts the reassessment of property to 2% per year, except where new construction or changes of ownership have occurred (subject to a number of exemptions). Taxing entities may, however, raise ad valorem taxes above the 1% limit to pay debt service on voter-approved bonded indebtedness. The U.S. Supreme Court has upheld Proposition 13 against claims that it has unlawfully resulted in widely varying tax liability on similarly-situated properties. Proposition 13 also requires voters of any governmental unit to give two-thirds approval to levy any special tax. Subsequent court decisions, however, have allowed non-voter approved general taxes so long as they are not dedicated to a specific use. In response to these decisions, voters adopted an initiative in 1986 that imposed new limits on the ability of local government entities to raise or levy general taxes without voter approval. Based upon a 1991 intermediate appellate court decision, it was believed that significant parts of this initiative, known as Proposition 62, were unconstitutional. On September 28, 1995, the California Supreme Court rendered a decision in the case of Santa Clara County Local Transportation Authority vs. Guardino that rejected the prior decision and upheld Proposition 62, while striking down a 1/2-cent sales tax for transportation purposes that was approved by a majority, but less than two-thirds, vote. Proposition 62 does not apply to charter cities, but other local governments may be constrained in raising any taxes without voter approval.

On November 5, 1996, California voters approved Proposition 218. This proposition added Articles XIIIC and XIIID to the state constitution, affecting the ability of local governments, including charter cities, to levy and collect both existing and future taxes, assessments, fees and charges. Proposition 218 became effective November 6, 1996, although application of some of its provisions was deferred until July 1, 1997. This proposition could negatively impact a local government's ability to make its debt service payments, and thus could result in lower credit ratings.

On November 2, 2010, voters approved the following initiative measures which have an impact on state budget finances; all three of these measures were effective immediately:

Proposition 22 restricts the ability of the state to use or borrow money from local governments and moneys dedicated to transportation financing. It also prohibits actions taken in current and prior budgets to use excise taxes on motor vehicle fuels to offset General Fund costs of debt service on certain transportation bonds and to borrow money from certain transportation funds.

Proposition 25 reduces the required vote in each house of the legislature to adopt the annual budget act "trailer bills," which accompany the budget act, and other appropriations measures to a majority from two-thirds.

Proposition 26 expands the definition of "taxes" under existing Constitutional provisions that require a two-thirds vote of the legislature to approve.

On November 6, 2012, voters approved Proposition 30 which provided temporary increases in personal income tax rates for high-income taxpayers and a temporary increase in the state sales tax rate, and specified that the additional revenues will support K-14 public schools and community colleges as part of the Proposition 98 guarantee. Proposition 30 also placed into the state constitution the current statutory provisions transferring 1.0625% of the state sales tax to local governments to fund the "realignment" program for many services including housing criminal offenders.

Also on November 6, 2012, voters approved Proposition 39, thereby amending state statutes governing corporation taxes by reversing a provision adopted in 2009 giving corporations an option on how to calculate the portion of worldwide income attributable to California. By requiring corporations to base their state tax liability on sales in California, it is estimated that state revenues would be increased by about $1 billion per year. The measure also, for five years, dedicates up to an estimated $550 million per year from this increased income to funding of projects that create energy efficiency and clean energy jobs in California.

In November 2014, the state's voters approved Proposition 2, which revised the state's method of funding the BSA. 1.5% of annual general fund revenues, plus excess capital gains receipts above a certain level, not necessary to fund Proposition 98, are applied equally to the BSA and paying down state liabilities (budgetary borrowings, and specified payments over and above base payments for state pensions and retiree health care costs). After fiscal year 2030-2031, the revenues that otherwise would have been deposited into the BSA may be used for either supplemental debt payments or savings.

California withdrew a portion of the balance in the BSA during fiscal year 2020-2021 before largely replenishing the fund by the end of fiscal year 2021-2022. Proposition 2 requires that 1.5% of annual General Fund revenues be deposited each year into the BSA until the BSA balance reaches an amount equal to 10%of General Fund revenues.

The 2024 Budget included a payment of $337 million from Proposition 2 debt-repayment funding in fiscal year 2024-2025 to reduce the state's CalPERS unfunded liability. This payment is in addition to the actuarially determined and statutorily required state pension contribution to CalPERS. Proposition 2 created the Public School System Stabilization Account (PSSSA) to serve as a Proposition 98

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reserve and requires a deposit into the fund under specified conditions. The 2024 Budget reflected a total balance of $8.4 billion in fiscal year 2022-2023 and a withdrawal of the full $8.4 billion in fiscal year 2023-2024. The withdrawal was necessary to avoid programmatic reductions to education funding. The 2024 Budget also included a $1.1 billion discretionary deposit in 2024-2025, leaving a balance of approximately $1.1 billion in the PSSSA.

***Obligations of the State of California***

As of July 1, 2025, the state had approximately $71.9 billion of outstanding general obligation bonds and lease revenue bonds payable principally from the state's general fund or from lease payments paid from the operating budget from the state's General Fund or from lease payments paid from the operating budget of the respective lessees, which operating budgets are primarily, but not exclusively, derived from the General Fund. As of July 1, 2025, there were approximately $43.3 billion of authorized and unissued long-term voter-approved general obligation bonds which, when issued, will be payable principally from the General Fund and approximately $8.9 billion of authorized and unissued lease revenue bonds.

***State Pension Funds and Retiree Health Benefits***

The two main state pension funds (CalPERS and CalSTRS) each continue to face unfunded future liabilities in the tens of billions of dollars. It is unknown how significantly the market volatility may ultimately impact unfunded pension liabilities and the state's annually determined General Fund pension contributions. For fiscal year 2024-2025 the actuarially determined General Fund pension contributions to CalPERS and CalSTRS were approximately $3.5 billion and $4.3 billion, respectively. For fiscal year 2025-2026, the actuarially determined General Fund pension contributions to CalPERS and CalSTRS are approximately $4.9 billion and $4.6 billion, respectively.

The 2025 Budged includes a payment of $584 million from Proposition 2 debt repayment funding in fiscal year 2025-2026 to reduce the state's CalPERs unfunded liability; a second payment of $372 million using Proposition 2 debt repayment funding, creating a total payment of $956 million, was included in a trailer bill for the 2025 budget. These payments are in addition to the actuarially determined and statutorily required state pension contribution to CalPERS.

***Financial Statements***

In connection with the State of California Annual Comprehensive Financial Report for the fiscal year ended June 30, 2024 (the "2024 Annual Comprehensive Financial Report"), State Controller Malia Cohen noted that the state's Annual Comprehensive Report was released well beyond March 31 of each subsequent fiscal year since 2018. Prior to fiscal year 2017-2018, the state's basic financial statements for a fiscal year were generally released on or before March 31, of the subsequent fiscal year and the audit report for the State Auditor's Office is released contemporaneously with the related basic financial statements. According to the State Controller, the delay in completion of the state's Annual Comprehensive Financial Report began when state departments and the Office of State Controller began transitioning to a new statewide accounting, cash management and procurement information technology system call the Financial Information System for California (FI$Cal). The cumulative impact of the delays in completion of the state's Annual Comprehensive Financial Reports for fiscal years 2017-2018, 2018-2019, 2019-2020, 2020-2021, and 2021-2022, have resulted in significant delays in the issuance of (a) the State of California Annual Comprehensive Financial Report for the fiscal year ended June 30, 2023 (the "2023 Annual Comprehensive Financial Report") which was completed on December 13, 2024, and (b) the 2024 Annual Comprehensive Financial Report which was completed on September 12, 2025. Such delays are expected to continue to impact the ability of the state to provide basic financial statements by March 31 for one or more subsequent fiscal years, as the State of California Annual Comprehensive Financial Report for the fiscal year ended June 30, 2025 (the "2025 Annual Comprehensive Financial Report") is currently expected to be issued in Spring 2026.

***Climate Change***

Historically, California has been susceptible to wildfires and hydrologic variability. As greenhouse gas emissions continue to accumulate, climate change will intensify and increase the frequency of extreme weather events, such as coastal storm surges, drought, wildfires, floods and heat waves, and raise sea levels along the coast. Over the past several years, the state has already experienced the impacts of climate change through a multi-year drought and unprecedented wildfires. The previous drought was a five-year event from 2012 to 2016, and six years later in 2022, California is once again facing drought conditions. On October 19, 2021, the Governor extended the drought state of emergency to all 58 of the state's counties, which is up from 50 counties as of July 31, 2021. In May 2022, emergency regulations were put in place to require local water agencies to reduce water use by up to 20% and prohibit any watering of ornamental lawns at businesses and other commercial properties. The dry weather also increases wildfire risks. In 2020, over 4 million acres burned in California, more than twice the previous record of approximately 2 million acres in 2018. Destruction of housing increases the demand for construction resources from rebuilding, and worsens the state's housing imbalances. The future fiscal impact of climate change on the state budget is difficult to predict, but it could be significant. However, the state is in the process of implementing various resilience measures to reduce the impacts of climate change, including significant investments in wildfire prevention and water infrastructure projects. The ability of the state to take actions to mitigate any future fiscal impact of climate change on the state budget is limited and there can be no assurances that the current or any future resilience measures will be effective in materially mitigating the impact of climate change on the state.

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During the 2022-2023 winter, the state experienced significant storms leading to severe flooding in various locations throughout the state, and by April 2023 the flooding had caused the state to declare emergencies in 51 of the state's 58 counties. The winter storms brought historic levels of snow and the associated snow melt as temperatures increased through the spring resulting in significant flooding in various regions of the state. The state continues to support a comprehensive approach to water management intended to be responsive to drastic shifts in precipitation levels caused by climate change.

**Collateralized Obligations**

Each fund may invest in collateralized obligations including, collateralized debt obligations (CDOs), collateralized loan obligations (CLOs), collateralized bond obligations (CBOs), collateralized mortgage obligations (CMOs), and other similarly structured investments. A CLO is a trust or other special purpose entity that is typically collateralized by a pool of loans, which may include, among others, U.S. and non-U.S. senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans. A CBO is generally a trust which is backed by a diversified pool of high risk, below investment grade fixed-income securities. The risks of an investment in a CDO depend largely on the type of the collateral backing the obligation and the class of the CDO in which the fund invests. CDOs are subject to credit, interest rate, valuation, prepayment and extension risks. These securities are also subject to risk of default on the underlying asset, particularly during periods of economic downturn. CDOs carry additional risks including, but not limited to, (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments, (ii) the collateral may decline in value or default, (iii) the fund may invest in CDOs that are subordinate to other classes, and (iv) the complex structure of the security may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results. A CMO is a multiclass bond backed by a pool of mortgage pass-through certificates or mortgage loans. CMOs are discussed in more detail in the *Mortgage-Related Securities* Section below.

**Commercial Paper**

The funds may invest in commercial paper (CP) that is issued by utility, financial, and industrial companies, supranational organizations and foreign governments and their agencies and instrumentalities. Rating agencies assign ratings to short-term securities (including CP) issuers indicating the agencies' assessment of credit risk. Short-term ratings assigned by certain rating agencies are provided in the *Explanation of Fixed-Income Securities Ratings* in *Appendix B*.

Domestic CP is issued by U.S. industrial and finance companies, utility companies, thrifts and bank holding companies. Foreign CP is issued by non-U.S. industrial and finance companies and financial institutions. Domestic and foreign corporate issuers occasionally have the underlying support of a well-known, highly rated commercial bank or insurance company. Bank support is provided in the form of a letter of credit (an LOC) or irrevocable revolving credit commitment (an IRC). Insurance support is provided in the form of a surety bond.

Bank holding company CP is issued by the holding companies of many well-known domestic banks. Bank holding company CP may be issued by the parent of a money center or regional bank.

Thrift CP is issued by major federal- or state-chartered savings and loan associations and savings banks.

Schedule B Bank CP is short-term, U.S. dollar-denominated CP issued by Canadian subsidiaries of non-Canadian banks (Schedule B banks). Whether issued as CP, a certificate of deposit or a promissory note, each instrument issued by a Schedule B bank ranks equally with any other deposit obligation. CP issued by Schedule B banks provides an investor with the comfort and reduced risk of a direct and unconditional parental bank guarantee. Schedule B instruments generally offer higher rates than the short-term instruments of the parent bank or holding company.

Asset-backed CP is issued by corporations through special programs. In a typical program, a special purpose corporation (SPC), created and/or serviced by a bank or other financial institution, uses the proceeds from an issuance of CP to purchase receivables or other financial assets from one or more corporations (sellers). The sellers transfer their interest in the receivables or other financial assets to the SPC, and the cash flow from the receivables or other financial assets is used to pay interest and principal on the CP. Letters of credit or other forms of credit enhancement may be available to cover the risk that the cash flow from the receivables or other financial assets will not be sufficient to cover the maturing CP.

**Convertible Securities**

The funds may invest in convertible securities. A convertible security is a bond, debenture, note, preferred stock or other security that may be converted into or exchanged for a prescribed amount of common stock of the same or a different issuer within a particular time period at a specified price or formula. A convertible security entitles the holder to receive the interest paid or accrued on debt or the dividend paid on preferred stock until the convertible security matures or is redeemed, converted or exchanged. Before conversion or exchange, such securities ordinarily provide a stream of income with generally higher yields than common stocks of the same or similar issuers, but lower than the yield on non-convertible debt. Of course, there can be no assurance of current income because issuers of convertible securities may default on their obligations. In addition, there can be no assurance of capital appreciation because

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the value of the underlying common stock will fluctuate. Because of the conversion feature, the managers generally consider convertible securities to be equity equivalents.

The price of a convertible security will normally fluctuate in some proportion to changes in the price of the underlying asset. A convertible security is subject to risks relating to the activities of the issuer and/or general market and economic conditions. The stream of income typically paid on a convertible security may tend to cushion the security against declines in the price of the underlying asset. However, the stream of income causes fluctuations based upon changes in interest rates and the credit quality of the issuer. In general, the value of a convertible security is a function of (1) its yield in comparison with yields of other securities of comparable maturity and quality that do not have a conversion privilege and (2) its worth, at market value, if converted or exchanged into the underlying common stock. The price of a convertible security often reflects such variations in the price of the underlying common stock in a way that a non-convertible security does not. At any given time, investment value generally depends upon such factors as the general level of interest rates, the yield of similar nonconvertible securities, the financial strength of the issuer and the seniority of the security in the issuer's capital structure.

A convertible security may be subject to redemption at the option of the issuer at a predetermined price. If a convertible security held by the fund is called for redemption, the fund would be required to permit the issuer to redeem the security and convert it to underlying common stock or to cash, or would sell the convertible security to a third party, which may have an adverse effect on the fund. A convertible security may feature a put option that permits the holder of the convertible security to sell that security back to the issuer at a predetermined price. The fund generally invests in convertible securities for their favorable price characteristics and total return potential and normally would not exercise an option to convert unless the security is called or conversion is forced.

Contingent convertible securities (sometimes referred to as CoCos or Additional Tier 1 instruments) generally either convert into equity or have their principal written down upon the occurrence of certain trigger events, which may be linked to the issuer's stock price, regulatory capital thresholds, regulatory actions relating to the issuer's continued viability, or other pre-specified events. Under certain circumstances, CoCos may be subject to an automatic write-down of the principal amount or value of the securities, sometimes to zero, thereby cancelling the securities. If such an event occurs, a fund may not have any rights to repayment of the principal amount of the securities that has not become due. Additionally, a fund may not be able to collect interest payments or dividends on such securities. In the event of liquidation or dissolution of the issuer, CoCos generally rank junior to the claims of holders of the issuer's other debt obligations. CoCos also may provide for the mandatory conversion of the security into common stock of the issuer under certain circumstances. Because the common stock of an issuer may not pay a dividend, a fund may experience reduced yields (or no yield) as a result of the conversion. Conversion of the security from debt to equity would deepen the subordination of the investor and thereby worsen the fund's standing in bankruptcy.

**Counterparty Risk**

A fund will be exposed to the credit risk of the counterparties with which, or the brokers, dealers and exchanges through which, it deals, whether it engaged in exchange-traded or off-exchange transactions.

A fund is subject to the risk that issuers of the instruments in which it invests and trades may default on their obligations under those instruments, and that certain events may occur that have an immediate and significant adverse effect on the value of those instruments. There can be no assurance that an issuer of an instrument in which a fund invests will not default, or that an event that has an immediate and significant adverse effect on the value of an instrument will not occur, and that a fund will not sustain a loss on a transaction as a result.

Transactions entered into by a fund may be executed on various U.S. and non-U.S. exchanges, and may be cleared and settled through various clearinghouses, custodians, depositories and prime brokers throughout the world. Although a fund attempts to execute, clear and settle the transactions through entities the advisor believes to be sound, there can be no assurance that a failure by any such entity will not lead to a loss to a fund.

**Cyber Security Risk**

As the funds increasingly rely on technology and information systems to operate, they become susceptible to operational risks linked to security breaches in those information systems. Both calculated attacks and unintentional events can cause failures in the funds' information systems. Cyber attacks can include acquiring unauthorized access to information systems, usually through hacking or the use of malicious software, for purposes of stealing assets or confidential information, corrupting data, or disrupting fund operations.

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Cyber attacks can also occur without direct access to information systems, for example by making network services unavailable to intended users. Cyber security failures by, or breaches of the information systems of, the advisor, distributors, broker-dealers, other service providers (including, but not limited to, index providers, fund accountants, custodians, transfer agents and administrators), or the issuers of securities the funds invest in may also cause disruptions and impact the funds' business operations. Breaches in information security may result in financial losses, interference with the funds' ability to calculate NAV, impediments to trading, inability of fund shareholders to transact business, violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, reimbursement or other compensation costs, or additional compliance costs. Additionally, the funds may incur substantial costs to prevent future cyber incidents. The funds have business continuity plans in the event of, and risk management systems to help prevent, such cyber attacks, but these plans and systems have limitations including the possibility that certain risks have not been identified. Moreover, the funds do not control the cyber security plans and systems of their service providers and other third party business partners. The funds and their shareholders could be negatively impacted as a result.

**Debt Securities**

The value of the debt securities in which the funds may invest will fluctuate based upon changes in interest rates and the credit quality of the issuer. The funds generally invest in "investment-grade" obligations, but they may invest in "high-yield" debt securities (which are also known as "junk bonds") consistent with any restrictions set forth in their prospectuses. "Investment grade" means that at the time of purchase, such obligations are rated within the four highest categories by a nationally recognized statistical rating organization (for example, at least Baa by Moody's Investors Service, Inc. or BBB by Standard & Poor's Corporation), or, if not rated, are of equivalent investment quality as determined by the advisor. According to Moody's, bonds rated Baa are medium-grade and possess some speculative characteristics. A BBB rating by S&P indicates S&P's belief that a security exhibits a satisfactory degree of safety and capacity for repayment, but is more vulnerable to adverse economic conditions and changing circumstances.

"High-yield" securities are higher risk, non-convertible debt obligations that are rated below investment-grade securities, or are unrated, but with similar credit quality.

There are no credit or maturity restrictions on the fixed-income securities in which the high-yield portion of the fund's portfolio may be invested. Debt securities rated lower than Baa by Moody's or BBB by S&P, or their equivalent, are considered by many to be predominantly speculative. Changes in economic conditions or other circumstances are more likely to lead to a weakened capacity to make principal and interest payments on such securities than is the case with higher quality debt securities. Regardless of rating levels, all debt securities considered for purchase by the fund are analyzed by the investment manager to determine, to the extent reasonably possible, that the planned investment is sound, given the fund's investment objective. See *Explanation of Fixed-Income Securities Ratings* in *Appendix B*.

In addition, the value of the fund's investments in fixed-income securities will change as prevailing interest rates change. In general, the prices of such securities vary inversely with interest rates. As prevailing interest rates fall, the prices of bonds and other securities that trade on a yield basis generally rise. When prevailing interest rates rise, bond prices generally fall. Depending upon the particular amount and type of fixed-income securities holdings of the fund, these changes may impact the NAV of the fund's shares.

**Depositary Receipts**

Depositary receipts are securities that evidence ownership interests in a security or a pool of securities that have been deposited with a "depository" and may be sponsored or unsponsored. American Depositary Receipts (ADRs), as well as other "hybrid" forms of ADRs, including European Depositary Receipts (EDRs) and Global Depositary Receipts (GDRs), are certificates evidencing ownership of shares of a foreign issuer. These certificates are issued by depository banks and generally trade on an established market in the United States or elsewhere. The underlying shares are held in trust by a custodian bank or similar financial institution in the issuer's home country. The depository bank may not have physical custody of the underlying securities at all times and may charge fees for various services, including forwarding dividends and interest and corporate actions. ADRs are alternatives to directly purchasing the underlying foreign securities in their national markets and currencies. However, ADRs continue to be subject to many of the risks associated with investing directly in foreign securities.

For ADRs, the depository is typically a U.S. financial institution and the underlying securities are issued by a foreign issuer. For other depositary receipts, the depository may be a foreign or a U.S. entity, and the underlying securities may have a foreign or a U.S. issuer. Depositary receipts will not necessarily be denominated in the same currency as their underlying securities. Generally, ADRs are issued in registered form, denominated in U.S. dollars, and designed for use in the U.S. securities markets. Other depositary receipts, such as GDRs and EDRs, may be issued in bearer form and denominated in other currencies, and are generally designed for use in securities markets outside the U.S. While the two types of depositary receipt facilities (unsponsored or sponsored) are similar, there are differences regarding a holder's rights and obligations and the practices of market participants. A depository may establish an unsponsored facility without participation by (or acquiescence of) the underlying issuer; typically, however, the depository requests a letter of non-objection from the underlying issuer prior to establishing the facility. Holders of unsponsored depositary receipts generally bear all the costs of the facility. The depository usually charges fees upon deposit and withdrawal of the underlying securities, the conversion of dividends into U.S. dollars or other currency, the disposition of non-cash distributions, and the performance of other services. The depository of an unsponsored facility frequently is under no obligation to distribute shareholder

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communications received from the underlying issuer or to pass through voting rights to depositary receipt holders with respect to the underlying securities.

Sponsored depositary receipt facilities are created in generally the same manner as unsponsored facilities, except that sponsored depositary receipts are established jointly by a depository and the underlying issuer through a deposit agreement. The deposit agreement sets out the rights and responsibilities of the underlying issuer, the depository, and the depositary receipt holders. With sponsored facilities, the underlying issuer typically bears some of the costs of the depositary receipts (such as dividend payment fees of the depository), although most sponsored depositary receipts agree to distribute notices of shareholders meetings, voting instructions, and other shareholder communications and information to the depositary receipt holders at the underlying issuer's request. The depositary of an unsponsored facility frequently is under no obligation to distribute shareholder communications received from the issuer of the deposited security or to pass through, to the holders of the receipts, voting rights with respect to the deposited securities. Depositary receipts do not eliminate all of the risks associated with directly investing in the securities of foreign issuers.

**Derivative Instruments**

To the extent permitted by its investment objectives and policies, each fund may invest in derivative instruments. Generally, a derivative instrument is a financial arrangement, the value of which is based on, or derived from, a traditional security, asset, or market index. A fund may not invest in a derivative instrument if its credit, interest rate, liquidity, counterparty or other associated risks are outside acceptable limits set forth in its prospectus. The advisor has a derivatives risk management program that includes policies and procedures reasonably designed to manage each fund's respective derivatives risk. The derivatives risk management program complies with Rule 18f-4 of the Investment Company Act. Unless a fund qualifies as a limited derivatives user, the fund will be required to participate in the derivatives risk management program, which includes compliance with value-at-risk based leverage limits, oversight by a derivatives risk manager, and additional reporting and disclosure regarding its derivatives positions. A fund designated as a limited derivatives user has policies and procedures to manage its aggregate derivatives risk. The advisor will periodically report on the derivatives risk management program to the Board of Trustees.

Examples of common derivative instruments include futures contracts, warrants, structured notes, credit default swaps, options contracts, swap transactions and forward currency contracts.

The risks associated with investments in derivatives differ from, and may be greater than, the risks associated with investing directly in traditional investments.

*Leverage Risk* – Relatively small market movements may cause large changes in an investment's value. Leverage is associated with certain types of derivatives or trading strategies. Certain transactions in derivatives (such as futures transactions or sales of put options) involve substantial leverage and may expose a fund to potential losses that exceed the amount of initial investment.

*Hedging Risk* – When used to hedge against a position in a fund, losses on a derivative instrument are typically offset by gains on the hedged position, and vice versa. Thus, though hedging can minimize or cancel out losses, it can also have the same effect on gains. Occasionally, there may be imperfect matching between the derivative and the underlying security, such a match may prevent the fund from achieving the intended hedge or expose it to a risk of loss. There is no guarantee that a fund's hedging strategy will be effective. Portfolio managers may decide not to hedge against any given risk either because they deem such risk improbable or they do not foresee the occurrence of the risk. Additionally, certain risks may be impossible to hedge against.

*Correlation Risk* – The value of the underlying security, interest rate, market index or other financial asset may not move in the direction the portfolio managers anticipate. Additionally, the value of the derivative may not move or react to changes in the underlying security, interest rate, market index or other financial asset as anticipated.

*Illiquidity Risk* – There may be no liquid secondary market, which may make it difficult or impossible to close out a position when desired. For exchange-traded derivatives contracts, daily limits on price fluctuations and speculative position limits set by the exchanges on which the fund transacts in derivative instruments may prevent profitable liquidation of positions, subjecting a fund to the potential of greater losses.

*Settlement Risk* – A fund may have an obligation to deliver securities or currency pursuant to a derivatives transaction that such fund does not own at the inception of the derivatives trade.

*Counterparty Risk* – A counterparty may fail to perform its obligations. Because bi-lateral derivative transactions are traded between counterparties based on contractual relationships, a fund is subject to the risk that a counterparty will not perform its obligations under the related contracts. Although each fund intends to enter into transactions only with counterparties which the advisor believes to be creditworthy, there can be no assurance that a counterparty will not default and that the funds will not sustain a loss on a transaction as a result. In situations where a fund is required to post margin or other collateral with a counterparty, the counterparty may fail to segregate the collateral or may commingle the collateral with the counterparty's own assets. As a result, in the event of the counterparty's bankruptcy or insolvency, a fund's collateral may be subject to the conflicting claims of the counterparty's creditors, and a fund may be exposed to the risk of a court treating a fund as a general unsecured creditor of the counterparty, rather than as the owner of the collateral.

*Volatility Risk* – A fund could face higher volatility because some derivative instruments create leverage.

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***Foreign Currency Exchange Transactions***

Foreign currency transactions may be conducted on a spot basis (*i.e.*, for prompt delivery and settlement) or forward basis (*i.e.*, by entering into forward currency exchange contracts, currency options and futures transactions for hedging or any lawful purpose). Although foreign exchange dealers generally do not charge a fee for such transactions, they do realize a profit based on the difference between the prices at which they are buying and selling various currencies.

Forward contracts are customized transactions that require a specific amount of a currency to be delivered at a specific exchange rate on a specific date or range of dates in the future. Forward contracts are generally traded in an interbank market directly between currency traders (usually larger commercial banks) and their customers. The parties to a forward contract may agree to offset or terminate the contract before its maturity, or may hold the contract to maturity and complete the contemplated currency exchange.

The following summarizes the principal currency management strategies involving forward contracts. A fund may also use swap agreements, indexed securities, and options and futures contracts relating to foreign currencies for the same purposes.

(1)&nbsp;&nbsp;&nbsp;&nbsp;*Settlement Hedges or Transaction Hedges*. When the portfolio managers wish to lock in the U.S. dollar price of or proceeds from a foreign currency denominated security when a fund is purchasing or selling the security, a fund may enter into a forward contract to do so. This type of currency transaction, often called a "settlement hedge" or "transaction hedge," protects the fund against an adverse change in foreign currency values between the date a security is purchased or sold and the date on which payment is made or received (*i.e.*, settled). Forward contracts to purchase or sell a foreign currency may also be used by a fund in anticipation of future purchases or sales of securities denominated in foreign currency, even if the specific investments have not yet been selected by the portfolio managers. This strategy is often referred to as "anticipatory hedging."

(2)&nbsp;&nbsp;&nbsp;&nbsp;*Position Hedges.* When the portfolio managers believe that the currency of a particular foreign country may suffer substantial decline against the U.S. dollar, a fund may enter into a forward contract to sell foreign currency for a fixed U.S. dollar amount approximating the value of some or all of its portfolio securities either denominated in, or whose value is tied to, such foreign currency. This use of a forward contract is sometimes referred to as a "position hedge." For example, if a fund owned securities denominated in Euro, it could enter into a forward contract to sell Euro in return for U.S. dollars to hedge against possible declines in the Euro's value. This hedge would tend to offset both positive and negative currency fluctuations, but would not tend to offset changes in security values caused by other factors.

A fund could also hedge the position by entering into a forward contract to sell another currency expected to perform similarly to the currency in which the fund's existing investments are denominated. This type of hedge, often called a "proxy hedge," could offer advantages in terms of cost, yield or efficiency, but may not hedge currency exposure as effectively as a simple position hedge against U.S. dollars. This type of hedge may result in losses if the currency used to hedge does not perform similarly to the currency in which the hedged securities are denominated.

The precise matching of forward contracts in the amounts and values of securities involved generally would not be possible because the future values of such foreign currencies will change as a consequence of market movements in the values of those securities between the date the forward contract is entered into and the date it matures. Predicting short-term currency market movements is extremely difficult, and the successful execution of a short-term hedging strategy is highly uncertain. Normally, consideration of the prospect for currency parities will be incorporated into the long-term investment decisions made with respect to overall diversification strategies. However, the managers believe that it is important to have flexibility to enter into such forward contracts when they determine that a fund's best interests may be served.

At the maturity of the forward contract, the fund may either sell the portfolio security and make delivery of the foreign currency, or it may retain the security and terminate the obligation to deliver the foreign currency by purchasing an "offsetting" forward contract with the same currency trader obligating the fund to purchase, on the same maturity date, the same amount of the foreign currency.

It is impossible to forecast with absolute precision the market value of portfolio securities at the expiration of the forward contract. Accordingly, it may be necessary for a fund to purchase additional foreign currency on the spot market (and bear the expense of such purchase) if the market value of the security is less than the amount of foreign currency the fund is obligated to deliver and if a decision is made to sell the security and make delivery of the foreign currency the fund is obligated to deliver.

(3)&nbsp;&nbsp;&nbsp;&nbsp;*Shifting Currency Exposure.* A fund may also enter into forward contracts to shift its investment exposure from one currency into another for hedging purposes or to enhance returns. This may include shifting exposure from U.S. dollars to foreign currency, or from one foreign currency to another foreign currency. This strategy tends to limit exposure to the currency sold, and increase exposure to the currency that is purchased, much as if a fund had sold a security denominated in one currency and purchased an equivalent security denominated in another currency. For example, if the portfolio managers believed that the U.S. dollar may suffer a substantial decline against the Euro, they could enter into a forward contract to purchase Euros for a fixed amount of U.S. dollars. This transaction would protect against losses resulting from a decline in the value of the U.S. dollar, but would cause the fund to assume the risk of fluctuations in the value of the Euro.

Successful use of currency management strategies will depend on the fund management team's skill in analyzing currency values. Currency management strategies may substantially subject a fund's investment exposure to changes in currency rates and could result

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in losses to a fund if currencies do not perform as the portfolio managers anticipate. For example, if a currency's value rose at a time when the portfolio managers hedged a fund by selling the currency in exchange for U.S. dollars, a fund would not participate in the currency's appreciation. Similarly, if the portfolio managers increase a fund's exposure to a currency and that currency's value declines, a fund will sustain a loss. There is no assurance that the portfolio managers' use of foreign currency management strategies will be advantageous to a fund or that they will hedge at appropriate times.

The fund will generally cover outstanding forward contracts by maintaining liquid portfolio securities denominated in, or whose value is tied to, the currency underlying the forward contract or the currency being hedged.

A nondeliverable forward (NDF) currency transaction is a transaction that represents an agreement between the fund and a counterparty to buy or sell a specified amount of a particular currency at an agreed upon foreign exchange rate on a future date. Unlike other currency transactions, there is no physical delivery of the currency on the settlement of an NDF transaction. Rather, the fund and the counterparty agree to net the settlement by making a payment in U.S. dollars or another fully convertible currency that represents any difference between the foreign exchange rate agreed upon at the inception of the NDF agreement and the actual exchange rate on the agreed upon future date. The funds may use an NDF contract to gain exposure to foreign currencies which are not internationally traded or if the markets for such currencies are heavily regulated or highly taxed. When currency exchange rates do not move as anticipated, a fund could sustain losses on the NDF transaction. This risk is heightened when the transactions involve currencies of emerging market countries. Additionally, certain NDF transactions which involve currencies of less developed countries or with respect to certain other currencies, may be relatively illiquid.

***Futures and Options***

Each fund may enter into futures contracts, options and options on futures contracts. Some futures and options strategies, such as selling futures, buying puts and writing calls, hedge a fund's investments against price fluctuations. Other strategies, such as buying futures, writing puts and buying calls, tend to increase market exposure.

***Futures***

Futures contracts provide for the sale by one party and purchase by another party of a specific security at a specified future time and price. Generally, futures transactions will be used to:

• protect against a decline in market value of a fund's securities (taking a short futures position),

• protect against the risk of an increase in market value for securities in which a fund generally invests at a time when the fund is not fully invested (taking a long futures position), or

• provide a temporary substitute for the purchase of an individual security that may not be purchased in an orderly fashion.

Although other techniques may be used to control a fund's exposure to market fluctuations, the use of futures contracts may be a more effective means of hedging this exposure. While a fund pays brokerage commissions in connection with opening and closing out futures positions, these costs are lower than the transaction costs incurred in the purchase and sale of the underlying securities.

For example, the sale of a future by a fund means the fund becomes obligated to deliver the security (or securities, in the case of an index future) at a specified price on a specified date. The purchase of a future means the fund becomes obligated to buy the security (or securities) at a specified price on a specified date. The portfolio managers may engage in futures and options transactions, provided that the transactions are consistent with the fund's investment objectives. An example of an index that may be used is the S&P 500<sup>®</sup> Index for equity funds. The managers may engage in futures and options transactions based on specific securities. Futures contracts are traded on national futures exchanges. Futures exchanges and trading are regulated under the Commodity Exchange Act by the Commodity Futures Trading Commission (CFTC), a U.S. government agency.

Index futures contracts differ from traditional futures contracts in that when delivery takes place, no stocks or bonds change hands. Instead, these contracts settle in cash at the spot market value of the index. Although other types of futures contracts by their terms call for actual delivery or acceptance of the underlying securities, in most cases the contracts are closed out before the settlement date. A futures position may be closed by taking an opposite position in an identical contract (*i.e.*, buying a contract that has previously been sold or selling a contract that has previously been bought).

Unlike when a fund purchases or sells a security, no price is paid or received by the fund upon the purchase or sale of the future. Initially, the fund will be required to deposit an amount of cash or securities equal to a varying specified percentage of the contract amount. This amount is known as initial margin. The margin deposit is intended to ensure completion of the contract (delivery or acceptance of the underlying security) if it is not terminated prior to the specified delivery date. A margin deposit does not constitute a margin transaction for purposes of the fund's investment restrictions. Minimum initial margin requirements are established by the futures exchanges and may be revised.

In addition, brokers may establish margin deposit requirements that are higher than the exchange minimums. Cash held in the margin accounts generally is not income-producing. However, coupon-bearing securities, such as Treasury bills and bonds, held in margin accounts generally will earn income. Subsequent payments to and from the broker, called variation margin, will be made on a daily basis as the price of the underlying security or index fluctuates, making the future more or less valuable, a process known as marking the contract to market. Changes in variation margin are recorded by the fund as unrealized gains or losses. At any time prior to

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expiration of the future, the fund may elect to close the position by taking an opposite position. A final determination of variation margin is then made; additional cash is required to be paid by or released to the fund, and the fund realizes a loss or gain.

***Options***

By buying a put option, a fund obtains the right (but not the obligation) to sell the instrument underlying the option at a fixed strike price and in return a fund pays the current market price for the option (known as the option premium). A fund may terminate its position in a put option it has purchased by allowing it to expire, by exercising the option or by entering into an offsetting transaction, if a liquid market exists. If the option is allowed to expire, a fund will lose the entire premium it paid. If a fund exercises a put option on a security, it will sell the instrument underlying the option at the strike price. The buyer of a typical put option can expect to realize a gain if the value of the underlying instrument falls substantially. However, if the price of the instrument underlying the option does not fall enough to offset the cost of purchasing the option, a put buyer can expect to suffer a loss limited to the amount of the premium paid, plus related transaction costs.

The features of call options are essentially the same as those of put options, except that the buyer of a call option obtains the right to purchase, rather than sell, the instrument underlying the option at the option's strike price. The buyer of a typical call option can expect to realize a gain if the value of the underlying instrument increases substantially and can expect to suffer a loss if security prices do not rise sufficiently to offset the cost of the option.

When a fund writes a put option, it takes the opposite side of the transaction from the option's buyer. In return for the receipt of the premium, a fund assumes the obligation to pay the strike price for the instrument underlying the option if the other party to the option chooses to exercise it. A fund may seek to terminate its position in a put option it writes before exercise by purchasing an offsetting option in the market at its current price. Otherwise, a fund must continue to be prepared to pay the strike price while the option is outstanding, regardless of price changes, and must continue to post margin as discussed below. If the price of the underlying instrument rises, a put writer would generally realize as profit the premium it received. If the price of the underlying instrument remains the same over time, it is likely that the writer will also profit, because it should be able to close out the option at a lower price. If the price of the underlying instrument falls, the put writer would expect to suffer a loss.

A fund writing a call option is obligated to sell or deliver the option's underlying instrument in return for the strike price upon exercise of the option. Writing calls generally is a profitable strategy if the price of the underlying instrument remains the same or falls. A call writer offsets part of the effect of a price decline by receipt of the option premium, but gives up some ability to participate in security price increases. The writer of an exchange-traded put or call option on a security, an index of securities or a futures contract is required to deposit cash or securities or a letter of credit as margin and to make mark to market payments of variation margin as the position becomes unprofitable.

***Options on Futures***

By purchasing an option on a futures contract, a fund obtains the right, but not the obligation, to sell the futures contract (a put option) or to buy the contract (a call option) at a fixed strike price. A fund can terminate its position in a put option by allowing it to expire or by exercising the option. If the option is exercised, the fund completes the sale of the underlying security at the strike price. Purchasing an option on a futures contract does not require a fund to make margin payments unless the option is exercised.

Although they do not currently intend to do so, the funds may write (or sell) call options that obligate them to sell (or deliver) the option's underlying instrument upon exercise of the option. While the receipt of option premiums would mitigate the effects of price declines, the funds would give up some ability to participate in a price increase on the underlying security. If a fund were to engage in options transactions, it would own the futures contract at the time a call was written and would keep the contract open until the obligation to deliver it expired.

***Risks Related to Futures and Options Transactions***

Futures and options prices can be volatile, and trading in these markets involves certain risks. If the portfolio managers apply a hedge at an inappropriate time or judge interest rate or equity market trends incorrectly, futures and options strategies may lower a fund's return.

A fund could suffer losses if it is unable to close out its position because of an illiquid secondary market. Futures contracts may be closed out only on an exchange that provides a secondary market for these contracts, and there is no assurance that a liquid secondary market will exist for any particular futures contract at any particular time. Consequently, it may not be possible to close a futures position when the portfolio managers consider it appropriate or desirable to do so. In the event of adverse price movements, a fund would be required to continue making daily cash payments to maintain its required margin. If the fund had insufficient cash, it might have to sell portfolio securities to meet daily margin requirements at a time when the portfolio managers would not otherwise do so. In addition, a fund may be required to deliver or take delivery of instruments underlying futures contracts it holds. The portfolio managers will seek to minimize these risks by limiting the contracts entered into on behalf of the funds to those traded on national futures exchanges and for which there appears to be a liquid secondary market.

A fund could suffer losses if the prices of its futures and options positions were poorly correlated with its other investments, or if securities underlying futures contracts purchased by a fund had different maturities than those of the portfolio securities being hedged. Such imperfect correlation may give rise to circumstances in which a fund loses money on a futures contract at the same time that it

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experiences a decline in the value of its hedged portfolio securities. A fund also could lose margin payments it has deposited with a margin broker, if, for example, the broker became bankrupt.

Most futures exchanges limit the amount of fluctuation permitted in futures contract prices during a single trading day. The daily limit establishes the maximum amount that the price of a futures contract may vary either up or down from the previous day's settlement price at the end of the trading session. Once the daily limit has been reached in a particular type of contract, no trades may be made on that day at a price beyond the limit. However, the daily limit governs only price movement during a particular trading day and, therefore, does not limit potential losses. In addition, the daily limit may prevent liquidation of unfavorable positions. Futures contract prices have occasionally moved to the daily limit for several consecutive trading days with little or no trading, thereby preventing prompt liquidation of futures positions and subjecting some futures traders to substantial losses.

If a fund's futures commission merchant (FCM) becomes bankrupt or insolvent, or otherwise defaults on its obligations to the fund, the fund may not receive all amounts owed to it in respect of its trading, despite the clearinghouse fully discharging all of its obligations. The Commodity Exchange Act requires an FCM to segregate all funds received from its customers with respect to regulated futures transactions from such FCM's proprietary funds. If an FCM were not to do so to the full extent required by law, the assets of an account might not be fully protected in the event of the bankruptcy of an FCM. Furthermore, in the event of an FCM's bankruptcy, a fund would be limited to recovering only a *pro rata* share of all available funds segregated on behalf of an FCM's combined customer accounts, even though certain property specifically traceable to the fund (for example, U.S. Treasury bills deposited by the fund) was held by an FCM. FCM bankruptcies have occurred in which customers were unable to recover from the FCM's estate the full amount of their funds on deposit with such FCM and owing to them. Such situations could arise due to various factors, or a combination of factors, including inadequate FCM capitalization, inadequate controls on customer trading and inadequate customer capital. In addition, in the event of the bankruptcy or insolvency of a clearinghouse, the fund might experience a loss of funds deposited through its FCM as margin with the clearinghouse, a loss of unrealized profits on its open positions, and the loss of funds owed to it as realized profits on closed positions. Such a bankruptcy or insolvency might also cause a substantial delay before the fund could obtain the return of funds owed to it by an FCM who was a member of such clearinghouse.

Because bi-lateral derivative transactions are traded between counterparties based on contractual relationships, a fund is subject to the risk that a counterparty will not perform its obligations under the related contracts. Although each fund intends to enter into transactions only with counterparties which the advisor believes to be creditworthy, there can be no assurance that a counterparty will not default and that the funds will not sustain a loss on a transaction as a result. In situations where a fund is required to post margin or other collateral with a counterparty, the counterparty may fail to segregate the collateral or may commingle the collateral with the counterparty's own assets. As a result, in the event of the counterparty's bankruptcy or insolvency, a fund's collateral may be subject to the conflicting claims of the counterparty's creditors, and a fund may be exposed to the risk of a court treating a fund as a general unsecured creditor of the counterparty, rather than as the owner of the collateral.

***Swap Agreements***

The funds may invest in swap agreements, consistent with their investment objective and strategies. A fund may enter into a swap agreement to, for example, attempt to obtain or preserve a particular return or spread at a lower cost than obtaining a return or spread through purchases and/or sales of instruments in other markets; protect against currency fluctuations; attempt to manage duration to protect against any increase in the price of securities the fund anticipates purchasing at a later date; or gain exposure to certain markets in the most economical way possible.

Swap agreements are two-party contracts entered into primarily by institutional investors for periods ranging from a few weeks to more than one year. In a standard "swap" transaction, two parties agree to exchange the returns (or differentials in rates of return) earned or realized on particular predetermined investments or instruments, which may be adjusted for an interest factor. The gross returns to be exchanged or "swapped" between the parties are generally calculated with respect to a "notional amount," *i.e.*, the return on or increase in value of a particular dollar amount invested at a particular interest rate, in a particular foreign currency, or in a "basket" of securities representing a particular index. Forms of swap agreements include, for example, interest rate swaps, under which fixed- or floating-rate interest payments on a specific principal amount are exchanged and total return swaps, under which one party agrees to pay the other the total return of a defined underlying asset (usually an index, including inflation indexes, stock, bond or defined portfolio of loans and mortgages) in exchange for fee payments, often a variable stream of cash flows based on a reference rate. The funds may enter into credit default swap agreements to hedge an existing position by purchasing or selling credit protection. Credit default swaps enable an investor to buy/sell protection against a credit event of a specific issuer. The seller of credit protection against a security or basket of securities receives an up-front or periodic payment to compensate against potential default event(s). The funds may enhance returns by selling protection or attempt to mitigate credit risk by buying protection. Market supply and demand factors may cause distortions between the cash securities market and the credit default swap market.

Whether a fund's use of swap agreements will be successful depends on the advisor's ability to predict correctly whether certain types of investments are likely to produce greater returns than other investments. Interest rate swaps could result in losses if interest rate changes are not correctly anticipated by the fund. Total return swaps could result in losses if the reference index, security, or investments do not perform as anticipated by the fund. Credit default swaps could result in losses if the fund does not correctly evaluate the creditworthiness of the issuer on which the credit default swap is based. Because they are two-party contracts and because

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they may have terms of greater than seven days, swap agreements may be considered to be illiquid. Moreover, a fund bears the risk of loss of the amount expected to be received under a swap agreement in the event of the default or bankruptcy of a swap agreement counterparty. The funds will enter into swap agreements only with counterparties that meet certain standards of creditworthiness or that are cleared through a Derivatives Clearing Organization (DCO). Certain restrictions imposed on the funds by the Internal Revenue Code may limit the funds' ability to use swap agreements.

The Dodd-Frank Wall Street Reform and Consumer Protection Act (Dodd-Frank Act) and related regulatory developments require the clearing and exchange-trading of certain standardized derivative instruments that the CFTC and SEC have defined as "swaps." The CFTC has implemented mandatory exchange-trading and clearing requirements under the Dodd-Frank Act and the CFTC continues to approve contracts for central clearing. Although exchange trading is designed to decrease counterparty risk, it does not do so entirely because the fund will still be subject to the credit risk of the central clearinghouse. Cleared swaps are subject to margin requirements imposed by both the central clearinghouse and the clearing member FCM. Uncleared swaps are now subject to posting and collecting collateral on a daily basis to secure mark-to-market obligations (variation margin). Swaps data reporting may subject a fund to administrative costs, and the safeguards established to protect trader anonymity may not function as expected. Exchange trading, central clearing, margin requirements, and data reporting regulations may increase a fund's cost of hedging risk and, as a result, may affect shareholder returns.

***Restrictions on the Use of Futures Contracts and Options***

Each fund may enter into futures contracts, options, options on futures contracts, or swap agreements as permitted by its investment policies and the CFTC rules. The advisor has claimed an exclusion from the definition of the term "commodity pool operator" under the Commodity Exchange Act and, therefore, the advisor is not subject to registration or regulation as a commodity pool operator under that Act with respect to its provision of services to each fund.

Certain rules adopted by the CFTC may impose additional limits on the ability of a fund to invest in futures contracts, options on futures, swaps, and certain other commodity interests if its investment advisor does not register with the CTFC as a "commodity pool operator" with respect to such fund. It is expected that the funds will be able to execute their investment strategies within the limits adopted by the CTFC's rules. As a result, the advisor does not intend to register with the CTFC as a commodity pool operator on behalf of any of the funds. In the event that one of the funds engages in transactions that necessitate future registration with the CFTC, the advisor will register as a commodity pool operator and comply with applicable regulations with respect to that fund.

To the extent required by law, each fund will segregate cash, cash equivalents or other appropriate liquid securities on its records in an amount sufficient to cover its obligations under the futures contracts, options and swap agreements.

**Distressed Investments**

Distressed investments generally entail greater risks due to such things as sensitivity to general economic and capital market conditions, interest rates, risks associated with leveraged companies and risks inherent in investing in companies experiencing financial and operating distress (*e.g.*, issuer credit risk). Distressed investments generally have very low credit ratings or are unrated by credit rating agencies.

**Greater Risk of Loss —** These investments are regarded as highly speculative. There is a greater risk that issuers of lower-rated investments will default than issuers of higher-rated investments, and some may be subject to bankruptcy proceedings or may be in default as to the repayment of principal and/or interest. Issuers of lower-rated investments generally are more vulnerable to real or perceived economic changes, political changes or adverse industry developments. In addition, distressed debt investments are frequently subordinated to the prior payment of senior indebtedness or have claims that are otherwise junior in priority with regard to the issuer's assets. If an issuer fails to pay principal or interest, the fund would experience a decrease in income and a decline in the market value of its investments. These investments carry a much greater risk of default and loss, which could include the loss of the entire amount of the investment.

**Valuation Difficulties —** It is often more difficult to value distressed and other lower-rated investments than higher-rated investments. If an issuer's financial condition deteriorates, accurate financial and business information may be limited or unavailable. In addition, lower-rated investments may be thinly traded and there may be no established secondary market. Because of the lack of market pricing and current information for investments in some distressed and lower-rated investments, valuation of such investments is much more dependent on judgment than is the case with higher-rated investments.

**Liquidity —** There may be no established secondary or public market for investments in distressed and other lower-rated investments. Such investments generally are traded in markets that are less liquid than the market for higher-rated investments. In addition, relatively few institutional purchasers may hold a major portion of an issue of lower-rated investments. As a result, the fund may be required to sell investments at substantial losses, or may be unable to sell investments.

**Equity Securities and Equity Equivalent Securities**

Consistent with their investment objectives and strategies, the funds may invest in equity securities and equity equivalents, including securities that permit a fund to receive an equity interest in an issuer, the opportunity to acquire an equity interest in an issuer, or the opportunity to receive a return on its investment that permits the fund to benefit from the growth over time in the equity of an issuer.

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Examples of equity securities and equity equivalents include common stock, preferred stock, convertible preferred stock, convertible securities, alternative entity securities, Exchange-Traded Funds (ETFs), and warrants and options. Equity equivalents also may include securities whose value or return is derived from the value or return of a different security.

Preferred stock is a type of equity security that generally pays dividends at a specified rate and has preference over common stock in the liquidation of assets and payment of dividends. Preferred stock may be structured similarly to a long-dated or perpetual bond and does not ordinarily carry voting rights. Unlike interest payments on a fixed-income security, preferred stock dividends generally are only payable if declared by the issuer's board of directors. A board of directors, however, is usually not obligated to pay dividends even if they have accrued. Additionally, if an issuer of preferred stock experiences economic or financial difficulties, its preferred stock may lose value due to the reduced likelihood that its board of directors will declare a dividend. Preferred stocks are typically subordinated to bonds and other debt instruments in an issuer's capital structure, in which case, preferred stock dividends are usually paid only after the company makes required payments to those bond and other debt holders. Consequently, the value of preferred stock may react more strongly than bonds and other debt to actual or perceived changes in a company's financial condition or prospects. Preferred stock may be substantially less liquid than other securities.

Alternative entity securities are the securities of entities that are formed as limited partnerships, limited liability companies, business trusts or other non-corporate entities that are similar to common or preferred stock of corporations.

Warrants are instruments that entitle the holder to buy an equity security at a specific price for a specific period of time. Changes in the value of a warrant do not necessarily correspond to changes in the value of its underlying security. The price of a warrant may be more volatile than the price of its underlying security, and a warrant may offer greater potential for capital appreciation as well as capital loss. Warrants do not entitle a holder to dividends or voting rights with respect to the underlying security and do not represent any rights in the assets of the issuing company. A warrant ceases to have value if it is not exercised prior to its expiration date. These factors can make warrants more speculative than other types of investments.

**ESG Integration Risk**

For American Century California Municipal Bond ETF, American Century Diversified Municipal Bond ETF and American Century Small Cap Growth Insights ETF:

The portfolio managers use a variety of analytical research tools and techniques to help them make decisions about buying or holding a municipal bond issuer that meet their investment criteria and selling the municipal bond issuers that do not. In addition to fundamental financial metrics, the portfolio managers may also consider environmental, social, and/or governance (ESG) data to evaluate a municipal bond issuer's sustainability characteristics. However, the portfolio managers may not consider ESG data with respect to every investment decision and, even when such data is considered, they may conclude that other attributes of an investment outweigh sustainability-related considerations when making decisions for the funds. Sustainability-related characteristics may or may not impact the performance of a municipal bond issuer or the funds, and the funds may perform differently than other funds that do not consider ESG data. Municipal bond issuers with strong sustainability-related characteristics may or may not outperform municipal bond issuers with weak sustainability related characteristics. ESG data used by the portfolio managers often lacks standardization, consistency, and transparency, and also may not be available, complete, or accurate.

**Foreign Securities**

As permitted by their respective investment objectives and principal investment strategies, the funds may invest in common stocks, convertible securities, preferred stocks, bonds, notes and other debt securities of foreign issuers, foreign governments and their agencies.

As permitted by their respective investment objectives and principal investment strategies, the funds may invest in U.S. dollar-denominated foreign securities, including securities of issuers located in developed foreign countries and emerging market countries.

Direct investments in foreign securities may be made either on foreign securities exchanges or in the over-the-counter markets.

Investments in foreign securities generally involve greater risks than investing in securities of domestic companies, including:

**Currency Risk** — The value of the foreign investments held by the funds may be significantly affected by changes in currency exchange rates. The dollar value of a foreign security generally decreases when the value of the dollar rises against the foreign currency in which the security is denominated and tends to increase when the value of the dollar falls against such currency. In addition, the value of fund assets may be affected by losses and other expenses incurred in converting between various currencies in order to purchase and sell foreign securities, and by currency restrictions, exchange control regulation, currency devaluations and political developments.

**Social, Political and Economic Risk** — The economies of many of the countries in which the fund invests are not as developed as the economy of the United States and may be subject to significantly different forces. Political or social instability, expropriation, nationalization, confiscatory taxation and limitations on the removal of funds or other assets also could adversely affect the value of investments. Further, the fund may find it difficult or be unable to enforce ownership rights, pursue legal remedies or obtain judgments in foreign courts.

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**Regulatory Risk** — Foreign companies generally are not subject to the regulatory controls imposed on U.S. issuers and, in general, there is less publicly available information about foreign securities than is available about domestic securities. Many foreign companies are not subject to uniform accounting, auditing and financial reporting standards, practices and requirements comparable to those applicable to domestic companies and there may be less stringent investor protection and disclosure standards in some foreign markets. Certain jurisdictions do not currently provide the Public Company Accounting Oversight Board (PCAOB) with sufficient access to inspect audit work papers and practices, or otherwise do not cooperate with U.S. regulators, potentially exposing investors in U.S. capital markets to significant risks. Income from foreign securities owned by the fund may be reduced by a withholding tax at the source, which would reduce dividend income payable to shareholders.

**Market and Trading Risk** — Brokerage commission rates in foreign countries, which generally are fixed rather than subject to negotiation as in the United States, are likely to be higher. The securities markets in many of the countries in which the fund invests have substantially less trading volume than the principal U.S. markets. As a result, the securities of some companies in these countries may be less liquid, more volatile and harder to value than comparable U.S. securities. Furthermore, one securities broker may represent all or a significant part of the trading volume in a particular country, resulting in higher trading costs and decreased liquidity due to a lack of alternative trading partners. There generally is less government regulation and supervision of foreign stock exchanges, brokers and issuers, which may make it difficult to enforce contractual obligations. In addition, it may be more difficult in foreign countries to accurately determine appropriate brokerage commissions, taxes and other trading costs related to securities trades.

**Clearance and Settlement Risk** — Foreign securities markets also have different clearance and settlement procedures, and in certain markets there have been times when settlements have been unable to keep pace with the volume of securities transactions, making it difficult to conduct such transactions. Delays in clearance and settlement could result in temporary periods when assets of the fund are uninvested and no return is earned. A fund's inability to make intended security purchases due to clearance and settlement problems could cause it to miss attractive investment opportunities. Inability to dispose of portfolio securities due to clearance and settlement problems could result either in losses to the fund due to subsequent declines in the value of the portfolio security or, if the fund has entered into a contract to sell the security, liability to the purchaser. This risk may be magnified in emerging markets because settlement systems may be less organized, creating a risk that settlements may be not only delayed, but also lost because of failures or defects in such systems.

**Ownership Risk** — Evidence of securities ownership may be uncertain in many foreign countries. In many of these countries, the most notable of which is the Russian Federation, the ultimate evidence of securities ownership is the share register held by the issuing company or its registrar. While some companies may issue share certificates or provide extracts of the company's share register, these are not negotiable instruments and are not effective evidence of securities ownership. In an ownership dispute, the company's share register is controlling. As a result, there may be a risk that a fund's trade details could be incorrectly or fraudulently entered on the issuer's share register at the time of the transaction, or that a fund's ownership position could thereafter be altered or deleted entirely, resulting in a loss to the fund. While the funds intend to invest directly in Russian companies that utilize an independent registrar, there can be no assurance that such investments will not result in a loss to the funds.

**Sanctions Risk** — The U.S. may impose economic sanctions against companies in various sectors of certain countries. This could limit the fund's investment opportunities in such countries, impairing the fund's ability to invest in accordance with its investment strategy and/or to meet its investment objective. For example, the fund may be prohibited from investing in securities issued by companies subject to such sanctions. In addition, the sanctions may require a fund to freeze its existing investments in sanctioned companies, prohibiting the fund from selling or otherwise transacting in these investments. Current sanctions or the threat of potential sanctions may also impair the value or liquidity of affected securities and negatively impact the fund.

In early 2022, the United States and countries throughout the world imposed economic sanctions on Russia in response to its military invasion of Ukraine. The sanctions are broad and include restrictions on the Russian government as well as Russian companies, individuals, and banking entities. The sanctions and other measures, such as boycotts or changes in consumer preferences, will likely cause declines in the value and liquidity of Russian securities, downgrades in the credit ratings of Russian securities, devaluation of Russia's currency, and increased market volatility and disruption in Russia and throughout the world. Sanctions and similar measures, such as banning Russia from financial transaction systems that facilitate international transfers of funds, could limit or prevent the funds from selling and buying impacted securities both in Russia and in other markets. Such measures will likely cause significant delay in the settlement of impacted securities transactions or prevent settlement all together. The lack of available market prices for such securities may cause the funds to use fair value procedures to value certain securities. The consequences of the war and sanctions may negatively impact other regional and global economic markets. Additionally, Russia may take counter measures or engage in retaliatory actions—including cyberattacks and espionage—which could further disrupt global markets and supply chains. Companies in other countries that do business with Russia and the global commodities market for oil and natural gas, especially, will likely feel the impact of the sanctions. The sanctions, together with the potential for a wider armed or cyber conflict, could increase financial market volatility globally and negatively impact the funds' performance beyond any direct exposure to Russian issuers or securities.

**Emerging Markets Risk** — Investing in securities of issuers in emerging market countries involves exposure to significantly higher risk than investing in countries with developed markets. Emerging market countries may have economic structures that generally are less diverse and mature, and political systems that can be expected to be less stable than those of developed countries.

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Securities prices in emerging market countries can be significantly more volatile than in developed countries, reflecting the greater uncertainties of investing in lesser developed markets and economies. In particular, emerging market countries may have relatively unstable governments, and may present the risk of nationalization of businesses, expropriation, confiscatory taxation or in certain instances, reversion to closed-market, centrally planned economies. Such countries may also have less protection of property rights than developed countries. Markets in emerging markets countries may also experience lower liquidity, market manipulation, and limited reliable access to capital.

The economies of emerging market countries may be based predominantly on only a few industries or may be dependent on revenues from particular commodities or on international aid or developmental assistance, may be highly vulnerable to changes in local or global trade conditions, and may suffer from extreme and volatile debt burdens or inflation rates. In addition, securities markets in emerging market countries may trade a relatively small number of securities and may be unable to respond effectively to increases in trading volume, potentially resulting in lower liquidity and in volatility in the price of securities traded on those markets. Also, securities markets in emerging market countries typically offer less regulatory protection for investors.

**Risk of Focusing Investment on Region or Country** — Investing a significant portion of assets in one country or region makes a fund more dependent upon the political and economic circumstances of that particular country or region.

**Eurozone Investment Risk** — The Economic and Monetary Union of the European Union (EMU) is comprised of the European Union members that have adopted the euro currency. By adopting the euro as its currency, a member state relinquishes control of its own monetary policies and is subject to fiscal and monetary controls. EMU members could voluntarily abandon, or be forced out of, the EU. Such events could impact the market values of Eurozone and various other securities and currencies, cause redenomination of certain securities into less valuable currencies, and create more volatile and illiquid markets. As a result, European countries are significantly affected by fiscal and monetary controls implemented by the EMU. The euro currency may not fully reflect the strengths and weaknesses of the various economies that comprise the EMU and Europe generally. Certain countries and regions in the EU are experiencing significant financial difficulties. Some of these countries may be dependent on assistance from other European governments and institutions or agencies. Assistance may be dependent on a country's implementation of reforms or reaching a certain level of performance. Failure to reach those objectives or an insufficient level of assistance could result in an economic downturn that could significantly affect the value of the fund's European investments. One or more countries could depart from the EU, which could further weaken the EMU and, by extension, its remaining members. For example, the United Kingdom's departure, described in more detail below.

**United Kingdom Investment Risk** — Commonly known as "Brexit," the United Kingdom's exit from the EU occurred in January 2021. The UK and EU continue to work to establish regulatory frameworks for cooperation on financial services. Continuing uncertainty in the UK, EU, and other financial markets may result in volatility, fluctuations in asset values and exchange rates, decreased liquidity and unwillingness or inability of financial and other counterparties to enter into transactions.

**Risk of Investing in China** — Investing in Chinese securities is riskier than investing in U.S. securities. Although the Chinese government is currently implementing reforms to promote foreign investment and reduce government economic control, there is no guarantee that the reforms will be ongoing or effective. Investing in China involves risk of loss due to nationalization, expropriation, and confiscation of assets and property. Losses may also occur due to new or expanded restrictions on foreign investments or repatriation of capital. Participants in the Chinese market are subject to less regulation and oversight than participants in the U.S. market. This may lead to trading volatility, difficulty in the settlement and recording of transactions, and uncertainty in interpreting and applying laws and regulations. Reduction in spending on Chinese products and services, institution of tariffs or other trade barriers, or a downturn in the economies of any of China's key trading partners may adversely affect the securities of Chinese issuers. Regional conflict could also have an adverse effect on the Chinese economy.

Though the PCAOB recently secured complete access to inspect registered public accounting firms headquartered in mainland China and Hong Kong, the SEC and the PCAOB continue to have concerns about deficiencies in these firms' audit engagements. Because of these deficiencies, there is the risk that material information about Chinese issuers may be unavailable. As a result, there is substantially greater risk that disclosures will be incomplete or misleading and, in the event of investor harm, substantially less access to recourse, in comparison to U.S. domestic companies.

The U.S. government may occasionally place restrictions on investments in Chinese companies. For example, in November 2020, an Executive Order was issued that prohibits U.S. persons from purchasing or investing in certain publicly-traded securities of companies identified as "Communist Chinese military companies" or in instruments that are designed to provide investment exposure to those companies. The companies identified may change from time to time. A fund may incur losses if more investors attempt to sell such securities or if the fund is unable to participate in an otherwise attractive investment. Securities that are or become prohibited may become less liquid and their market prices may decline. In addition, the market for securities of other Chinese-based issuers may also be negatively impacted, resulting in reduced liquidity and price declines.

Due to Chinese governmental restrictions on foreign ownership of companies in certain industries, Chinese operating companies often rely on variable interest entity (VIE) structures to raise capital from non-Chinese investors. In a VIE structure, a China-based operating company establishes an entity—typically offshore—that enters into service and other contracts with the Chinese company designed to provide economic exposure to the company. The offshore entity then issues shares that are sold to non-Chinese investors.

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A U.S.-listed company and its China-based VIE might appear to be the same company—because they are presented in a consolidated manner—but they are not. The U.S.-listed company's control over the China-based company is predicated on contracts with the China-based company, not equity ownership. The Chinese government has never explicitly approved these structures and thus could determine at any time, and without notice, that the VIE's underlying contractual arrangements violate Chinese law. If either the China-based company (or its officers, directors, or Chinese equity owners) breach those contracts with the U.S.-listed shell company, or Chinese law changes in a way that affects the enforceability of these arrangements, or those contracts are otherwise not enforceable under Chinese law, U.S. investors may suffer losses with limited recourse available. Additionally, investments in the U.S.-listed company may be affected by conflicts of interest and duties between the legal owners of the China-based VIE and the stockholders of the U.S.-listed company. Finally, if Chinese companies listed on U.S. exchanges, including ADRs and companies that rely on VIE structures, do not meet U.S. accounting standards and auditor oversight requirements they may be delisted, which would likely decrease the liquidity and value of these securities.

**Hybrid Securities**

Hybrid securities have characteristics that differ from both common stocks and senior debt securities, typically ranking senior to common stock and subordinate to senior debt in an issuer's capital structure. Hybrid securities may have features such as deferrable and/or non-cumulative interest payments, long-dated maturity or no maturity, reduced or no acceleration rights, and may be subject to principal reduction without default under certain circumstances. Because of these features, the managers may consider some hybrid securities to be equity or equity equivalents and some to be debt securities based on each security's individual characteristics.

**Inflation-linked Securities**

As permitted by their investment objective and principal investment strategies, the funds may purchase inflation-linked securities issued by the U.S. Treasury, U.S. government agencies and instrumentalities other than the U.S. Treasury, and entities other than the U.S. Treasury or U.S. government agencies and instrumentalities.

Inflation-linked securities are designed to offer a return linked to inflation, thereby protecting future purchasing power of the money invested in them. However, inflation-linked securities provide this protected return only if held to maturity. In addition, inflation-linked securities may not trade at par value. Real interest rates (the market rate of interest less the anticipated rate of inflation) change over time as a result of many factors, such as what investors are demanding as a true value for money. When real rates do change, inflation-linked securities prices will be more sensitive to these changes than conventional bonds, because these securities were sold originally based upon a real interest rate that is no longer prevailing. Should market expectations for real interest rates rise, the price of inflation-linked securities and the share price of the fund holding these securities will fall. Investors in the fund should be prepared to accept not only this share price volatility but also the possible adverse tax consequences it may cause.

An investment in securities featuring inflation-linked principal and/or interest involves factors not associated with more traditional fixed-principal securities. Such factors include the possibility that the inflation index may be subject to significant changes, that changes in the index may or may not correlate to changes in interest rates generally or changes in other indices, or that the resulting interest may be greater or less than that payable on other securities of similar maturities. In the event of sustained deflation, it is possible that the amount of semiannual interest payments, the inflation-linked principal of the security or the value of the stripped components will decrease. If any of these possibilities are realized, a fund's NAV could be negatively affected.

***Inflation-linked Treasury Securities***

Inflation-linked U.S. Treasury securities are U.S. Treasury securities with a final value and interest payment stream linked to the inflation rate. inflation-linked U.S. Treasury securities may be issued in either note or bond form. inflation-linked U.S. Treasury notes have maturities of at least one year, but not more than 10 years. Inflation-linked U.S. Treasury bonds have maturities of more than 10 years.

Inflation-linked U.S. Treasury securities may be attractive to investors seeking an investment backed by the full faith and credit of the U.S. government that provides a return in excess of the rate of inflation. These securities were first sold in the U.S. market in January 1997. Inflation-linked U.S. Treasury securities are auctioned and issued on a quarterly basis.

**Structure and Inflation Index** — The principal value of inflation-linked U.S. Treasury securities will be adjusted to reflect changes in the level of inflation. The index for measuring the inflation rate for inflation-linked U.S. Treasury securities is the non-seasonally adjusted U.S. City Average All Items Consumer Price Index for All Urban Consumers (Consumer Price Index) published monthly by the U.S. Department of Labor's Bureau of Labor Statistics.

Semiannual coupon interest payments are made at a fixed percentage of the inflation-linked principal value. The coupon rate for the semiannual interest rate of each issuance of inflation-linked U.S. Treasury securities is determined at the time the securities are sold to the public (*i.e.*, by competitive bids in the auction). The coupon rate will likely reflect real yields available in the U.S. Treasury market; real yields are the prevailing yields on U.S. Treasury securities with similar maturities, less then-prevailing inflation expectations. While a reduction in inflation will cause a reduction in the interest payment made on the securities, the repayment of principal at the maturity of the security is guaranteed by the U.S. Treasury to be no less than the original face or par amount of the security at the time of issuance.

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**Indexing Methodology** — The principal value of inflation-linked U.S. Treasury securities will be indexed, or adjusted, to account for changes in the Consumer Price Index. Semiannual coupon interest payment amounts will be determined by multiplying the inflation-linked principal amount by one-half the stated rate of interest on each interest payment date.

**Taxation** — The taxation of inflation-linked U.S. Treasury securities is similar to the taxation of conventional bonds. Both interest payments and the difference between original principal and the inflation-linked principal will be treated as interest income subject to taxation. Interest payments are taxable when received or accrued. The inflation adjustment to the principal is subject to tax in the year the adjustment is made, not at maturity of the security when the cash from the repayment of principal is received. If an upward adjustment has been made, investors in non-tax-deferred accounts will pay taxes on this amount currently. Decreases in the indexed principal can be deducted only from current or previous interest payments reported as income.

Inflation-linked U.S. Treasury securities, therefore, have a potential cash flow mismatch to an investor, because investors must pay taxes on the inflation-linked principal before the repayment of principal is received. It is possible that, particularly for high income tax bracket investors, inflation-linked U.S. Treasury securities would not generate enough cash in a given year to cover the tax liability they could create. This is similar to the current tax treatment for zero-coupon bonds and other discount securities. If inflation-linked U.S. Treasury securities are sold prior to maturity, capital losses or gains are realized in the same manner as traditional bonds.

Investors in the fund will receive dividends that represent both the interest payments and the principal adjustments of the inflation-linked securities held in the fund's portfolio. An investment in the fund may, therefore, be a means to avoid the cash flow mismatch associated with a direct investment in inflation-linked securities. For more information about taxes and their effect on you as an investor in the fund, see *Taxes* on page 62.

***U.S. Government Agencies***

A number of U.S. government agencies and instrumentalities other than the U.S. Treasury may issue inflation-linked securities. Some U.S. government agencies have issued inflation-linked securities whose design mirrors that of the inflation-linked U.S. Treasury securities described above.

***Other Entities***

Entities other than the U.S. Treasury or U.S. government agencies and instrumentalities may issue inflation-linked securities. While some entities have issued inflation-linked securities whose design mirrors that of the inflation-linked U.S. Treasury securities described above, others utilize different structures. For example, the principal value of these securities may be adjusted with reference to the Consumer Price Index, but the semiannual coupon interest payments are made at a fixed percentage of the original issue principal. Alternatively, the principal value may remain fixed, but the coupon interest payments may be adjusted with reference to the Consumer Price Index.

**Initial Public Offerings**

The funds may invest in initial public offerings (IPOs) of common stock or other equity securities issued by a company. The purchase of securities in an IPO may involve higher transaction costs than those associated with the purchase of securities already traded on exchanges or other established markets. In addition to the risks associated with equity securities generally, IPO securities may be subject to additional risk due to factors such as the absence of a prior public market, unseasoned trading and speculation, a potentially small number of securities available for trading, limited information about the issuer and other factors. These factors may cause IPO shares to be volatile in price. While a fund may hold IPO securities for a period of time, it may sell them in the aftermarket soon after the purchase, which could increase portfolio turnover and lead to increased expenses such as commissions and transaction costs. Investments in IPOs could have a magnified impact (either positive or negative) on performance if a fund's assets are relatively small. The impact of IPOs on a fund's performance may tend to diminish as assets grow.

**Inverse Floaters**

An inverse floater is a type of derivative instrument that bears an interest rate that moves inversely to market interest rates. As market interest rates rise, the interest rate on inverse floaters goes down, and vice versa. Generally, this is accomplished by expressing the interest rate on the inverse floater as an above-market fixed rate of interest, reduced by an amount determined by reference to a market-based or bond-specific floating interest rate (as well as by any fees associated with administering the inverse floater program).

Inverse floaters may be issued in conjunction with an equal amount of Dutch Auction floating-rate bonds (floaters), or a market-based index may be used to set the interest rate on these securities. A Dutch Auction is an auction system in which the price of the security is gradually lowered until it meets a responsive bid and is sold. Floaters and inverse floaters may be brought to market by (1) a broker-dealer who purchases fixed-rate bonds and places them in a trust, or (2) an issuer seeking to reduce interest expenses by using a floater/inverse floater structure in lieu of fixed-rate bonds.

In the case of a broker-dealer structured offering (where underlying fixed-rate bonds have been placed in a trust), distributions from the underlying bonds are allocated to floater and inverse floater holders in the following manner:

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(i)Floater holders receive interest based on rates set at a six-month interval or at a Dutch Auction, which is typically held every 28 to 35 days. Current and prospective floater holders bid the minimum interest rate that they are willing to accept on the floaters, and the interest rate is set just high enough to ensure that all of the floaters are sold.

(ii)Inverse floater holders receive all of the interest that remains, if any, on the underlying bonds after floater interest and auction fees are paid. The interest rates on inverse floaters may be significantly reduced, even to zero, if interest rates rise.

Procedures for determining the interest payment on floaters and inverse floaters brought to market directly by the issuer are comparable, although the interest paid on the inverse floaters is based on a presumed coupon rate that would have been required to bring fixed-rate bonds to market at the time the floaters and inverse floaters were issued.

Where inverse floaters are issued in conjunction with floaters, inverse floater holders may be given the right to acquire the underlying security (or to create a fixed-rate bond) by calling an equal amount of corresponding floaters. The underlying security may then be held or sold. However, typically, there are time constraints and other limitations associated with any right to combine interests and claim the underlying security.

Floater holders subject to a Dutch Auction procedure generally do not have the right to put back their interests to the issuer or to a third party. If a Dutch Auction fails, the floater holder may be required to hold its position until the underlying bond matures, during which time interest on the floater is capped at a predetermined rate.

The secondary market for floaters and inverse floaters may be limited. The market value of inverse floaters tends to be significantly more volatile than fixed-rate bonds.

**Investment in Issuers with Limited Operating Histories**

The funds may invest a portion of its assets in the equity securities of issuers with limited operating histories. The portfolio managers consider an issuer to have a limited operating history if that issuer has a record of less than three years of continuous operation. The managers will consider periods of capital formation, incubation, consolidations, and research and development in determining whether a particular issuer has a record of three years of continuous operation.

Investments in securities of issuers with limited operating histories may involve greater risks than investments in securities of more mature issuers. By their nature, such issuers present limited operating histories and financial information upon which the managers may base their investment decision on behalf of the funds. In addition, financial and other information regarding these issuers, when available, may be incomplete or inaccurate.

For purposes of this limitation, "issuers" refers to operating companies that issue securities for the purposes of issuing debt or raising capital as a means of financing their ongoing operations. It does not, however, refer to entities, corporate or otherwise, that are created for the express purpose of securitizing obligations or income streams. For example, a fund's investments in a trust created for the purpose of pooling mortgage obligations or other financial assets would not be subject to the limitation.

**Loan Participations**

Loan participations, which represent interests in the cash flow generated by commercial loans, require three parties: a participant (or investor), a lending bank and a borrower. The investor purchases a share in a loan originated by a lending bank, and this participation entitles the investor to a percentage of the principal and interest payments made by the borrower.

Loan participations are attractive because they typically offer higher yields than other money market instruments. However, along with these higher yields come certain risks, not the least of which is the risk that the borrower will be unable to repay the loan. Generally, because the lending bank does not guarantee payment, the investor is directly exposed to risk of default by the borrower. In addition, the investor is not a direct creditor of the borrower. The participation represents an interest in assets owned by the lending bank. If the lending bank becomes insolvent, the investor could be considered an unsecured creditor of the bank instead of the holder of a participating interest in a loan. Because of these risks, the manager must carefully consider the creditworthiness of both the borrower and the lender.

Another concern is liquidity. Because there is no established secondary market for loan participations, a fund's ability to sell them for cash is limited. Some participation agreements place limitations on the investor's right to resell the loan participation, even when a buyer can be found.

**Loan Participation Notes**

In terms of their functioning and investment risk, loan participation notes (LPNs) are comparable to an investment in "normal" bonds. In return for the investor's commitment of capital, the issuer makes regular interest payments and, at maturity or in accordance with an agreed upon amortization schedule, the note is repaid at par.

However, in contrast to "normal" bonds, there are three parties involved in the issuance of an LPN. The legal issuer, typically a bankruptcy-remote, limited purpose entity, issues notes to investors and uses the proceeds received from investors to make loans to the borrower-with each loan generally having substantially identical payment terms to the related note issued by the issuer. The borrower is typically an operating company, and the issuer's obligations under a note are typically limited to the extent of any capital

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repayments and interest payments made by the borrower under the related loan. Accordingly, the investor generally assumes the credit risk of the underlying borrower. The loan participation note structure is generally used to provide the borrower more efficient financing in the capital markets than the borrower would be able to obtain if it issued notes directly.

In the event of a default by the borrower of an LPN, the fund may experience delays in receiving payments of interest and principal while the note issuer enforces and liquidates the underlying collateral, and there is no guarantee that the underlying collateral will cover the principal and interest owed to the fund under the LPN.

LPNs are generally subject to liquidity risk. Even though an LPN may be traded on an exchange there can be no assurance that a liquid market will develop for the LPNs, that holders of the LPNs will be able to sell their LPNs, or that such holders will be able to sell their LPNs for a price that reflects their value.

Depending on the creditworthiness of the underlying borrower, LPNs may be subject to the risk of investing in high-yield securities. Additionally, LPNs are generally utilized by foreign borrowers and, therefore, may be subject to the risk of investing in foreign securities and emerging market risk. Such foreign risk could include interest payments being subject to withholding tax.

**Loans of Portfolio Securities**

To realize additional income, a fund may lend its portfolio securities. Such loans may not exceed one-third of the fund's total assets valued at market, however, this limitation does not apply to purchases of debt securities in accordance with the fund's investment objectives, policies and limitations, or to repurchase agreements with respect to portfolio securities.

Cash received from the borrower as collateral through loan transactions may be invested in other eligible securities. Investing this cash subjects that investment to market appreciation or depreciation. If a borrower defaults on a securities loan because of insolvency or other reasons, the lending fund could experience delays or costs in recovering the securities it loaned; if the value of the loaned securities increased over the value of the collateral, the fund could suffer a loss. To minimize the risk of default on securities loans, the advisor adheres to guidelines prescribed by the Board of Trustees governing lending of securities. These guidelines strictly govern:

• the type and amount of collateral that must be received by the fund;

• the circumstances under which additions to that collateral must be made by borrowers;

• the return to be received by the fund on the loaned securities;

• the limitations on the percentage of fund assets on loan; and

• the credit standards applied in evaluating potential borrowers of portfolio securities.

In addition, the guidelines require that the fund have the option to terminate any loan of a portfolio security at any time and set requirements for recovery of securities from borrowers.

**Lower-Quality Bonds**

Consistent with their investment objectives, the funds may invest in lower-rated bonds and unrated bonds judged by the advisor to be of comparable quality (collectively, lower-quality bonds).While the market values of higher-quality bonds tend to correspond to market interest rate changes, the market values of lower-quality bonds tend to reflect the financial condition of their issuers. The ability of an issuer to make payment could be affected by litigation, legislation or other political events, or the bankruptcy of the issuer. Lower-quality municipal bonds are more susceptible to these risks than higher-quality municipal bonds. In addition, lower-quality bonds may be unsecured or subordinated to other obligations of the issuer. Projects financed through the issuance of lower-quality bonds often carry higher levels of risk. The issuer's ability to service its debt obligations may be adversely affected by an economic downturn, weaker-than-expected economic development, a period of rising interest rates, the issuer's inability to meet projected revenue forecasts, a higher level of debt, or a lack of needed additional financing. Lower quality bonds generally are unsecured and are often subordinated to other obligations of the issuer. These bonds may have call or buy-back features that permit the issuer to call or repurchase the bond from the holder. Premature disposition of a lower-quality bond due to a call or buy-back feature, deterioration of the issuer's creditworthiness, or a default may make it difficult for the advisor to manage the flow of income to the fund, which may have a negative tax impact on shareholders. The market for lower-quality bonds tends to be concentrated among a smaller number of dealers than the market for higher-quality bonds. This market may be dominated by dealers and institutions (including mutual funds), rather than by individuals. To the extent that a secondary trading market for lower-quality bonds exists, it may not be as liquid as the secondary market for higher-quality bonds. Limited liquidity in the secondary market may adversely affect market prices and hinder the advisor's ability to dispose of particular bonds when it determines that it is in the best interest of a fund to do so. Reduced liquidity also may hinder the advisor's ability to obtain market quotations for purposes of valuing a fund's portfolio and determining its NAV. The advisor continually monitors securities to determine their relative liquidity. A fund may incur expenses in excess of its ordinary operating expenses if it becomes necessary to seek recovery on a defaulted bond, particularly a lower-quality bond.

**Mortgage-Related Securities**

To the extent permitted by its investment objective and policies, the fund may invest in mortgage-related securities.

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***Background***

A mortgage-backed security represents an ownership interest in a pool of mortgage loans. The loans are made by financial institutions to finance home and other real estate purchases. As the loans are repaid, investors receive payments of both interest and principal.

Like fixed-income securities such as U.S. Treasury bonds, mortgage-backed securities pay a stated rate of interest during the life of the security. However, unlike a bond, which returns principal to the investor in one lump sum at maturity, mortgage-backed securities return principal to the investor in increments during the life of the security.

Because the timing and speed of principal repayments vary, the cash flow on mortgage-backed securities is irregular. If mortgage holders sell their homes, refinance their loans, prepay their mortgages or default on their loans, the principal is distributed *pro rata* to investors.

As with other fixed-income securities, the prices of mortgage-backed securities fluctuate in response to changing interest rates; when interest rates fall, the prices of mortgage-backed securities rise, and vice versa. Changing interest rates have additional significance for mortgage-backed securities investors, however, because they influence prepayment rates (the rates at which mortgage holders prepay their mortgages), which in turn affect the yields on mortgage-backed securities. When interest rates decline, prepayment rates generally increase. Mortgage holders take advantage of the opportunity to refinance their mortgages at lower rates with lower monthly payments. When interest rates rise, mortgage holders are less inclined to refinance their mortgages. The effect of prepayment activity on yield depends on whether the mortgage-backed security was purchased at a premium or at a discount.

The fund may receive principal sooner than it expected because of accelerated prepayments. Under these circumstances, the fund might have to reinvest returned principal at rates lower than it would have earned if principal payments were made on schedule. Conversely, a mortgage-backed security may exceed its anticipated life if prepayment rates decelerate unexpectedly. Under these circumstances, the fund might miss an opportunity to earn interest at higher prevailing rates.

***GNMA Certificates***

The Government National Mortgage Association (GNMA) is a wholly owned corporate instrumentality of the United States within the Department of Housing and Urban Development. The National Housing Act of 1934 (Housing Act), as amended, authorizes GNMA to guarantee the timely payment of interest and repayment of principal on certificates that are backed by a pool of mortgage loans insured by the Federal Housing Administration under the Housing Act, or by Title V of the Housing Act of 1949 (FHA Loans), or guaranteed by the Veterans' Affairs under the Servicemen's Readjustment Act of 1944 (VA Loans), as amended, or by pools of other eligible mortgage loans. The Housing Act provides that the full faith and credit of the U.S. government is pledged to the payment of all amounts that may be required to be paid under any guarantee. GNMA has unlimited authority to borrow from the U.S. Treasury in order to meet its obligations under this guarantee.

GNMA certificates represent a *pro rata* interest in one or more pools of the following types of mortgage loans: (a) fixed-rate level payment mortgage loans; (b) fixed-rate graduated payment mortgage loans (GPMs); (c) fixed-rate growing equity mortgage loans (GEMs); (d) fixed-rate mortgage loans secured by manufactured (mobile) homes (MHs); (e) mortgage loans on multifamily residential properties under construction (CLCs); (f) mortgage loans on completed multifamily projects (PLCs); (g) fixed-rate mortgage loans that use escrowed funds to reduce the borrower's monthly payments during the early years of the mortgage loans (buydown mortgage loans); and (h) mortgage loans that provide for payment adjustments based on periodic changes in interest rates or in other payment terms of the mortgage loans.

***Current Status of Fannie Mae and Freddie Mac***

Since September 2008, Fannie Mae and Freddie Mac have operated under a conservatorship administered by the Federal Housing Finance Agency (FHFA). In addition, the U.S. Treasury has entered into senior preferred stock purchase agreements (SPSPAs) to provide additional financing to Fannie Mae and Freddie Mac. Although the SPSPAs are intended to provide Fannie Mae and Freddie Mac with the necessary cash resources to meet their obligations, Fannie Mae and Freddie Mac continue to operate as going concerns while in conservatorship, and each remains liable for all of its obligations, including its guaranty obligations, associated with its mortgage-backed securities.

The future status and role of Fannie Mae or Freddie Mac could be impacted by, among other things, the actions taken and restrictions placed on Fannie Mae or Freddie Mac by the FHFA in its role as conservator, the restrictions placed on Fannie Mae's or Freddie Mac's operations and activities under the senior preferred stock purchase agreements, market responses to developments at Fannie Mae or Freddie Mac, and future legislative, regulatory, or legal action that alters the operations, ownership, structure and/or mission of Fannie Mae or Freddie Mac, each of which may, in turn, impact the value of, and cash flows on, any securities guaranteed by Fannie Mae and Freddie Mac.

***Fannie Mae Certificates***

The Federal National Mortgage Association (FNMA or Fannie Mae) is a federally chartered and privately owned corporation established under the Federal National Mortgage Association Charter Act. Fannie Mae was originally established in 1938 as a U.S. government agency designed to provide supplemental liquidity to the mortgage market and was reorganized as a stockholder-owned and privately managed corporation by legislation enacted in 1968. Fannie Mae acquires capital from investors who would not

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ordinarily invest in mortgage loans directly and thereby expands the total amount of funds available for housing. This money is used to buy home mortgage loans from local lenders, replenishing the supply of capital available for mortgage lending.

Fannie Mae certificates represent a *pro rata* interest in one or more pools of FHA Loans, VA Loans, or, most commonly, conventional mortgage loans (*i.e.*, mortgage loans that are not insured or guaranteed by a government agency) of the following types: (a) fixed-rate level payment mortgage loans; (b) fixed-rate growing equity mortgage loans; (c) fixed-rate graduated payment mortgage loans; (d) adjustable-rate mortgage loans; and (e) fixed-rate mortgage loans secured by multifamily projects.

Fannie Mae certificates entitle the registered holder to receive amounts representing a *pro rata* interest in scheduled principal and interest payments (at the certificate's pass-through rate, which is net of any servicing and guarantee fees on the underlying mortgage loans), any principal prepayments, and a proportionate interest in the full principal amount of any foreclosed or otherwise liquidated mortgage loan. The full and timely payment of interest and repayment of principal on each Fannie Mae certificate is guaranteed by Fannie Mae; this guarantee is not backed by the full faith and credit of the U.S. government.

***Freddie Mac Certificates***

The Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac) is a corporate instrumentality of the United States created pursuant to the Emergency Home Finance Act of 1970 (FHLMC Act), as amended. Freddie Mac was established primarily for the purpose of increasing the availability of mortgage credit. Its principal activity consists of purchasing first-lien conventional residential mortgage loans (and participation interests in such mortgage loans) and reselling these loans in the form of mortgage-backed securities, primarily Freddie Mac certificates.

Freddie Mac certificates represent a *pro rata* interest in a group of mortgage loans (a Freddie Mac certificate group) purchased by Freddie Mac. The mortgage loans underlying Freddie Mac certificates consist of fixed- or adjustable-rate mortgage loans with original terms to maturity of between 10 and 30 years, substantially all of which are secured by first-liens on one- to four-family residential properties or multifamily projects. Each mortgage loan must meet standards set forth in the FHLMC Act. A Freddie Mac certificate group may include whole loans, participation interests in whole loans, undivided interests in whole loans, and participations composing another Freddie Mac certificate group.

Freddie Mac guarantees to each registered holder of a Freddie Mac certificate the timely payment of interest at the rate provided for by the certificate. Freddie Mac also guarantees ultimate collection of all principal on the related mortgage loans, without any offset or deduction, but generally does not guarantee the timely repayment of principal. Freddie Mac may remit principal at any time after default on an underlying mortgage loan, but no later than 30 days following (a) foreclosure sale, (b) payment of a claim by any mortgage insurer, or (c) the expiration of any right of redemption, whichever occurs later, and in any event no later than one year after demand has been made upon the mortgager for accelerated payment of principal. Obligations guaranteed by Freddie Mac are not backed by the full faith and credit pledge of the U.S. government.

***To-Be-Announced Mortgage-Backed Securities***

To-be-announced (TBA) commitments are forward agreements for the purchase or sale of securities, which are described in greater detail under the heading *When-Issued and Forward Commitment Agreements*. A fund may gain exposure to mortgage-backed securities through TBA transactions. TBA mortgage-backed securities typically are debt securities structured by agencies such as Fannie Mae and Freddie Mac. In a typical TBA mortgage transaction, certain terms (such as price) are fixed, with delayed payment and delivery on an agreed upon future settlement date. The specific mortgage-backed securities to be delivered are not typically identified at the trade date but the delivered security must meet specified terms (such as issuer, interest rate, and underlying mortgage terms). Consequently, TBA mortgage-backed transactions involve increased interest rate risk because the underlying mortgages may be less favorable at delivery than anticipated. TBA mortgage contracts also involve a risk of loss if the value of the underlying security to be purchased declines prior to delivery date. The yield obtained for such securities may be higher or lower than yields available in the market on delivery date.

The funds may also take short positions in TBA investments. To enter a short sale of a TBA security, a fund effectively agrees to sell a security it does not own at a future date and price. The funds generally anticipate closing short TBA positions before delivery of the respective security is required, however if the fund is unable to close a position, the fund would have to purchase the securities needed to settle the short sale. Such purchases could be at a different price than anticipated, and the fund would lose or gain money based on the acquisition price.

***Credit Risk Transfer Securities***

Credit risk transfer securities (CRTs) transfer the credit risk related to certain types of mortgage-backed securities to the owner of the credit risk transfer. Government entities, such as Fannie Mae or Freddie Mac, primarily issue CRTs. CRTs trade in an active over the counter market facilitated by well-known investment banks. Though an active OTC market for trading exists, CRTs may be less liquid than exchange-traded securities. CRTs are unguaranteed and unsecured fixed or floating rate general obligations. Holders of CRTs receive compensation for providing credit protection to the issuer. The issuer of the CRT selects the pool of mortgage loans based on that entity's eligibility criteria, and the performance of the CRTs will be directly affected by the selection of such underlying mortgage loans. The risks associated with an investment in a CRT differ from the risks of investing in mortgage-backed securities issued by government entities or issued by private issuers because some or all of the mortgage default or credit risk associated with the

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underlying mortgage loans is transferred to investors. Accordingly, investors in CRTs could lose some or all of their investment if the underlying mortgage loans default.

***Collateralized Mortgage Obligations (CMOs)***

A CMO is a multiclass bond backed by a pool of mortgage pass-through certificates or mortgage loans. CMOs may be collateralized by (a) GNMA, Fannie Mae or Freddie Mac pass-through certificates; (b) unsecured mortgage loans insured by the Federal Housing Administration or guaranteed by the Department of Veterans' Affairs; (c) unsecuritized conventional mortgages; or (d) any combination thereof.

In structuring a CMO, an issuer distributes cash flow from the underlying collateral over a series of classes called tranches. Each CMO is a set of two or more tranches, with average lives and cash flow patterns designed to meet specific investment objectives. The average life expectancies of the different tranches in a four-part deal, for example, might be two, five, seven and 20 years.

As payments on the underlying mortgage loans are collected, the CMO issuer pays the coupon rate of interest to the bondholders in each tranche. At the outset, scheduled and unscheduled principal payments go to investors in the first tranches. Investors in later tranches do not begin receiving principal payments until the prior tranches are paid off. This basic type of CMO is known as a sequential pay or plain vanilla CMO.

Some CMOs are structured so that the prepayment or market risks are transferred from one tranche to another. Prepayment stability is improved in some tranches if other tranches absorb more prepayment variability.

The final tranche of a CMO often takes the form of a Z-bond, also known as an accrual bond or accretion bond. Holders of these securities receive no cash until the earlier tranches are paid in full. During the period that the other tranches are outstanding, periodic interest payments are added to the initial face amount of the Z-bond but are not paid to investors. When the prior tranches are retired, the Z-bond receives coupon payments on its higher principal balance plus any principal prepayments from the underlying mortgage loans. The existence of a Z-bond tranche helps stabilize cash flow patterns in the other tranches. In a changing interest rate environment, however, the value of the Z-bond tends to be more volatile.

As CMOs have evolved, some classes of CMO bonds have become more prevalent. The planned amortization class (PAC) and targeted amortization class (TAC), for example, were designed to reduce prepayment risk by establishing a sinking-fund structure. PAC and TAC bonds assure to varying degrees that investors will receive payments over a predetermined period under various prepayment scenarios. Although PAC and TAC bonds are similar, PAC bonds are better able to provide stable cash flows under various prepayment scenarios than TAC bonds because of the order in which these tranches are paid.

The existence of a PAC or TAC tranche can create higher levels of risk for other tranches in the CMO because the stability of the PAC or TAC tranche is achieved by creating at least one other tranche-known as a companion bond, support or non-PAC bond-that absorbs the variability of principal cash flows. Because companion bonds have a high degree of average life variability, they generally pay a higher yield. A TAC bond can have some of the prepayment variability of a companion bond if there is also a PAC bond in the CMO issue.

Floating-rate CMO tranches (floaters) pay a variable rate of interest that is usually tied to a reference rate, such as the Secured Overnight Financing Rate (SOFR). Institutional investors with short-term liabilities, such as commercial banks, often find floating-rate CMOs attractive investments. Super floaters (which float a certain percentage above a reference rate) and inverse floaters (which float inversely to a reference rate) are variations on the floater structure that have highly variable cash flows.

***Single- and Multi-Family Mortgage-Related Securities***

A single- or multi-family mortgage-backed security represents an ownership interest in a pool of mortgage loans. The loans are made by financial institutions or municipal agencies to finance home and other real estate purchases. As the loans are repaid, investors receive payments of both interest and principal. Like fixed-income securities such as U.S. Treasury bonds, mortgage-backed securities pay a stated rate of interest during the life of the security. However, unlike a bond, which returns principal to the investor in one lump sum at maturity, single- or multi-family mortgage-backed securities return principal to the investor in increments during the life of the security.Because the timing and speed of principal repayments vary, the cash flow on single- or multi-family mortgage-backed securities is irregular. If mortgage holders sell their homes, refinance their loans, prepay their mortgages or default on their loans, the principal may be distributed *pro rata* to investors. As with other fixed-income securities, the prices of single- or multi-family mortgage-backed securities fluctuate in response to changing interest rates; when interest rates fall, the prices of these securities rise, and vice versa. Changing interest rates have additional significance for mortgage-backed securities investors, however, because they influence prepayment rates (the rates at which mortgage holders prepay their mortgages), which in turn affect the yields on mortgage-backed securities. When interest rates decline, prepayment rates generally increase. Mortgage holders take advantage of the opportunity to refinance their mortgages at lower rates with lower monthly payments. When interest rates rise, mortgage holders are less inclined to refinance their mortgages. The effect of prepayment activity on yield depends on whether the mortgage-backed security was purchased at a premium or at a discount.

A fund may receive principal sooner than it expected because of accelerated prepayments. Under these circumstances, the fund might have to reinvest returned principal at rates lower than it would have earned if principal payments were made on schedule. Conversely,

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a mortgage-backed security may exceed its anticipated life if prepayment rates decelerate unexpectedly. Under these circumstances, a fund might miss an opportunity to earn interest at higher prevailing rates.

***Stripped Mortgage-Backed Securities***

The market values of IOs and POs are very sensitive to interest rate and prepayment rate fluctuations. POs, for example, increase (or decrease) in value as interest rates decline (or rise). The price behavior of these securities also depends on whether the mortgage collateral was purchased at a premium or discount to its par value. Prepayments on discount coupon POs generally are much lower than prepayments on premium coupon POs. IOs may be used to hedge a fund's other investments because prepayments cause the value of an IO strip to move in the opposite direction from other mortgage-backed securities.

***Commercial Mortgage-Backed Securities (CMBS)***

CMBS are securities created from a pool of commercial mortgage loans, such as loans for hotels, shopping centers, office buildings, apartment buildings, and the like. Interest and principal payments from these loans are passed on to the investor according to a particular schedule of payments. They may be issued by U.S. government agencies or by private issuers. The credit quality of CMBS depends primarily on the quality of the underlying loans and on the structure of the particular deal. Generally, deals are structured with senior and subordinate classes. Multiple classes may permit the issuance of securities with payment terms, interest rates, or other characteristics differing both from those of each other and those of the underlying assets. Examples include classes having characteristics such as floating interest rates or scheduled amortization of principal. Rating agencies rate the individual classes of the deal based on the degree of seniority or subordination of a particular class and other factors. The value of these securities may change because of actual or perceived changes in the creditworthiness of individual borrowers, their tenants, the servicing agents, or the general state of commercial real estate and other factors.

CMBS may be partially stripped so that each investor class receives some interest and some principal. When securities are completely stripped, however, all of the interest is distributed to holders of one type of security, known as an interest-only security (IO), and all of the principal is distributed to holders of another type of security known as a principal-only security (PO). As interest rates rise and fall, the value of IOs tends to move in the same direction as interest rates. The cash flows and yields on IO classes are extremely sensitive to the rate of principal payments (including prepayments) on the related underlying mortgage assets. In the cases of IOs, prepayments affect the amount of cash flows provided to the investor. If the underlying mortgage assets experience greater than anticipated prepayments of principal, an investor may fail to fully recoup its initial investment in an IO class of a stripped mortgage-backed security, even if the IO class is rated AAA or Aaa or is derived from a full faith and credit obligation. However, because commercial mortgages are often locked out from prepayment, or have high prepayment penalties or a defeasance mechanism, the prepayment risk associated with a CMBS IO class is generally less than that of a residential IO.

***Adjustable Rate Mortgage Securities***

Adjustable rate mortgage securities (ARMs) have interest rates that reset at periodic intervals. Acquiring ARMs permits a fund to participate in increases in prevailing current interest rates through periodic adjustments in the coupons of mortgages underlying the pool on which ARMs are based. In addition, when prepayments of principal are made on the underlying mortgages during periods of rising interest rates, a fund can reinvest the proceeds of such prepayments at rates higher than those at which they were previously invested. Mortgages underlying most ARMs, however, have limits on the allowable annual or lifetime increases that can be made in the interest rate that the mortgagor pays. Therefore, if current interest rates rise above such limits over the period of the limitation, a fund holding an ARM does not benefit from further increases in interest rates. Moreover, when interest rates are in excess of coupon rates (*i.e.*, the rates being paid by mortgagors) of the mortgages, ARMs behave more like fixed-income securities and less like adjustable rate securities and are subject to the risks associated with fixed-income securities. In addition, during periods of rising interest rates, increases in the coupon rate of adjustable rate mortgages generally lag current market interest rates slightly, thereby creating the potential for capital depreciation on such securities.

***Mortgage Dollar Rolls***

Mortgage dollar rolls are a security where a fund sells mortgage-backed securities to financial institutions for delivery in the current month and simultaneously contracts to repurchase similar securities on a specified future date. During the period between the sale and repurchase (the "roll period"), the fund forgoes principal and interest paid on the mortgage-backed securities. The fund is compensated by the difference between the current sales price and the forward price for the future purchase (often referred to as the "drop"), as well as by the interest earned on the cash proceeds of the initial sale. The fund will use the proceeds generated from the transaction to invest in high-quality, short duration investments, which may enhance the fund's current yield and total return. Such investments may have a leveraging effect, increasing the volatility of the fund.

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Generally, the funds intend to physically settle dollar roll transactions within 35 days of their trade dates. If a dollar roll cannot be physically settled in this time, it will be treated as a derivatives transaction for purposes of the fund's derivative risk management program. The derivative risk management program is described in greater detail in the *Derivative Instruments* section.

The fund could suffer a loss if the contracting party fails to perform the future transaction and the fund is, therefore, unable to buy back the mortgage-backed securities it initially sold. The fund also takes the risk that the mortgage-backed securities that it repurchases at a later date will have less favorable market characteristics than the securities originally sold.

**Municipal Obligations**

Tax-exempt or taxable municipal obligations are generally issued by state and local governments or government entities. Interest payments from municipal obligations are generally exempt from federal income tax. Interest payments from certain municipal obligations, however, are subject to federal income tax because of the degree of non-government involvement in the transaction or because federal tax code limitations on the issuance of tax-exempt bonds that benefit private entities have been exceeded. Some typical examples of these taxable municipal obligations include industrial revenue bonds and economic development bonds issued by state or local governments to aid private enterprise. The interest on a taxable municipal bond is often exempt from state taxation in the issuing state. The funds (except American Century California Municipal Bond ETF and American Century Diversified Municipal Bond ETF) do not expect to be eligible to pass through to shareholders the tax-exempt character of interest on municipal obligations.

***Municipal Activities Focus***

From time to time, a significant portion of the assets of American Century California Municipal Bond ETF and American Century Diversified Municipal Bond ETF may be invested in municipal obligations that are related to the extent that economic, business or political developments affecting one of these obligations could affect the other obligations in a similar manner. For example, if the fund invested a significant portion of its assets in utility bonds and a state or federal government agency or legislative body promulgated or enacted new environmental protection requirements for utility providers, projects financed by utility bonds could suffer as a group. Additional financing might be required to comply with the new environmental requirements, and outstanding debt might be downgraded in the interim. Among other factors that could negatively affect bonds issued to finance similar types of projects are state and federal legislation regarding financing for municipal projects, pending court decisions relating to the validity or means of financing municipal projects, material or manpower shortages and declining demand for projects or facilities financed by the municipal bonds.

***Municipal Bonds***

Municipal bonds generally have maturities of more than one year when issued and are designed to meet longer-term capital needs. These securities have two principal classifications: general obligation bonds and revenue bonds.

General Obligation (GO) bonds are issued by states, counties, cities, towns and regional districts to fund a variety of public projects, including construction of and improvements to schools, highways, and water and sewer systems. GO bonds are backed by the issuer's full faith and credit pledge based on its ability to levy taxes for the timely payment of interest and repayment of principal, although such levies may be constitutionally or statutorily limited as to rate or amount.

Revenue bonds are not backed by an issuer's taxing authority; rather, interest and principal are secured by the net revenues from a project or facility. Revenue bonds are issued to finance a variety of capital projects, including construction or refurbishment of utility and waste disposal systems, highways, bridges, tunnels, air and seaport facilities, schools and hospitals.

Industrial Development Bonds (IDBs), a type of revenue bond, are issued by or on behalf of public authorities to finance privately operated facilities. These bonds are used to finance business, manufacturing, housing, athletic and pollution control projects, as well as public facilities such as mass transit systems, air and seaport facilities and parking garages. Payment of interest and repayment of principal on an IDB depend solely on the ability of the facility's operator to meet financial obligations and on the pledge, if any, of the real or personal property financed. The interest earned on IDBs may be subject to the federal alternative minimum tax.

Some longer-term municipal bonds allow an investor to "put" or sell the security at a specified time and price to the issuer or other "put provider." If a put provider fails to honor its commitment to purchase the security, the fund may have to treat the security's final maturity as its effective maturity, lengthening the fund's weighted average maturity and increasing the volatility of the fund.

The funds may purchase municipal bonds with credit enhancements such as letters of credit or municipal bond insurance from time to time. Letters of credit are issued by a third party, usually a bank, to enhance liquidity and ensure repayment of principal and any accrued interest if the underlying municipal bond should default. Municipal bond insurance, which is usually purchased by the bond issuer from a private, nongovernmental insurance company, provides an unconditional and irrevocable guarantee that the insured bond's principal and interest will be paid when due. Insurance does not guarantee the price of the bond or the share price of a fund. The credit rating of an insured bond reflects the credit rating of the insurer, based on its claims-paying ability. But, it can reflect the rating on the insured credit if the bond insurer rating is downgraded below that of the insured credit.The obligation of a municipal bond insurance company to pay a claim extends over the life of each insured bond. Although defaults on insured municipal bonds have been low to date, there is no assurance that this will continue. A higher-than-expected default rate could strain the insurer's loss reserves and adversely affect its ability to pay claims to bondholders. A significant portion of insured municipal bonds that have been

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issued and are outstanding are insured by a small number of insurance companies, so an event involving one or more of these insurance companies, such as a credit rating downgrade, could have a significant adverse effect on the value of the municipal bonds insured by that insurance company and on the municipal bond markets as a whole.Before the 2008 financial crisis, municipal bond insurers insured approximately half of newly issued municipal securities. Since the crisis, the number of municipal bond insurers has dropped, and the role of bond insurance in the municipal markets has declined significantly. Currently, there are only a few companies actively writing such polices, and municipal market penetration is less than 10%.

***Municipal Lease Obligations***

Municipal lease obligations, which may take the form of a lease, an installment purchase, or a conditional sale contract, are issued by state and local governments and authorities to acquire land and a wide variety of equipment and facilities. Generally, the funds will not hold such obligations directly as a lessor of the property but will purchase a participation interest in a municipal lease obligation from a bank or other third party. Municipal leases frequently carry risks distinct from those associated with general obligation or revenue bonds. State constitutions and statutes set requirements that states and municipalities must meet to incur debt. These may include voter referenda, interest rate limits or public sale requirements. Leases, installment purchases or conditional sale contracts (which normally provide for title to the leased asset to pass to the government issuer) have evolved as a way for government issuers to acquire property and equipment without meeting constitutional and statutory requirements for the issuance of debt. Many leases and contracts include nonappropriation clauses, which provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for such purposes by the appropriate legislative body on a yearly or other periodic basis. Municipal lease obligations also may be subject to abatement risk. For example, construction delays or destruction of a facility as a result of an uninsurable disaster that prevents occupancy could result in all or a portion of a lease payment not being made.

***Municipal Notes***

Consistent with their investment objectives, the funds may invest in municipal notes, which are issued by state and local governments or government entities to provide short-term capital or to meet cash flow needs.

Tax Anticipation Notes (TANs) are issued in anticipation of seasonal tax revenues, such as ad valorem property, income, sales, use and business taxes, and are payable from these future taxes. TANs usually are general obligations of the issuer. General obligations are backed by the issuer's full faith and credit pledge based on its ability to levy taxes for the timely payment of interest and repayment of principal, although such levies may be constitutionally or statutorily limited as to rate or amount.

Revenue Anticipation Notes (RANs) are issued with the expectation that receipt of future revenues, such as federal revenue sharing or state aid payments, will be used to repay the notes. Typically, these notes also constitute general obligations of the issuer.

Bond Anticipation Notes (BANs) are issued to provide interim financing until long-term financing can be arranged. In most cases, the long-term bonds provide the money for repayment of the notes.

Revenue anticipation warrants, or reimbursement warrants, are issued to meet the cash flow needs of state governments at the end of a fiscal year and in the early weeks of the following fiscal year. These warrants are payable from unapplied money in the state's General Fund, including the proceeds of RANs issued following enactment of a state budget or the proceeds of refunding warrants issued by the state.

***Municipal Tobacco Bonds***

Municipal tobacco bonds' payment obligations are tied to a master settlement agreement between 46 states and certain U.S. territories and several major tobacco companies. The agreement provides that if certain conditions are met the tobacco companies may reduce or suspend part of their payments. In such an event, the issuer of the bonds may not make full payments and the funds, as investors of the bonds, may suffer.

***Other Investment Companies***

Each of the funds may invest in other investment companies, such as closed-end investment companies, unit investment trusts, other exchange-traded funds (ETFs) and other open-end investment companies, provided that the investment is consistent with the fund's investment policies and restrictions. Under the Investment Company Act, a fund's investment in such securities, subject to certain exceptions, currently is limited to:

• 3% of the total voting stock of any one investment company;

• 5% of the fund's total assets with respect to any one investment company; and

• 10% of a fund's total assets in the aggregate.

Such exceptions may include reliance on Rule 12d1-4 of the Investment Company Act. Rule 12d1-4, subject to certain requirements, would permit a fund to invest in affiliated investment companies (other American Century mutual funds and ETFs) and unaffiliated investment companies in excess of the limitations described above.

A fund's investments in other investment companies may include money market funds managed by the advisor. Investments in money market funds are not subject to the percentage limitations set forth above.

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As a shareholder of another investment company, a fund would bear, along with other shareholders, its *pro rata* portion of the other investment company's expenses, including advisory fees. These expenses would be in addition to the management fee that each fund bears directly in connection with its own operations.

**Repurchase Agreements**

Each fund may invest in repurchase agreements when they present an attractive short-term return on cash that is not otherwise committed to the purchase of securities pursuant to the investment policies of that fund.

A repurchase agreement occurs when, at the time a fund purchases an interest-bearing obligation, the seller (a bank or a broker-dealer registered under the Securities Exchange Act of 1934) agrees to purchase it on a specified date in the future at an agreed-upon price. The repurchase price reflects an agreed-upon interest rate during the time the fund's money is invested in the security.

Because the security purchased constitutes collateral for the repurchase obligation, a repurchase agreement can be considered a loan collateralized by the security purchased. The fund's risk is the seller's ability to pay the agreed-upon repurchase price on the repurchase date. If the seller defaults, the fund may incur costs in disposing of the collateral, which would reduce the amount realized. If the seller seeks relief under the bankruptcy laws, the disposition of the collateral may be delayed or limited. To the extent the value of the security decreases, the fund could experience a loss.

The funds will limit repurchase agreement transactions to securities issued by the U.S. government and its agencies and instrumentalities, and will enter into such transactions with those banks and securities dealers who are deemed creditworthy by the advisor.

Repurchase agreements maturing in more than seven days would count toward a fund's 15% limit on illiquid securities.

**Restricted and Illiquid Securities**

The funds may purchase restricted or illiquid securities, including Rule 144A securities, when they present attractive investment opportunities that otherwise meet the funds' criteria for selection. Restricted securities include securities that cannot be sold to the public without registration under the 1933 Act or the availability of an exemption from registration, or that are "not readily marketable" because they are subject to other legal or contractual delays in or restrictions on resale. Rule 144A securities are securities that are privately placed with and traded among qualified institutional investors rather than the general public. Although Rule 144A securities are considered restricted securities, they are not necessarily illiquid.

With respect to securities eligible for resale under Rule 144A, the advisor will determine the liquidity of such pursuant to the fund's Liquidity Risk Management Program, approved by the Board of Trustees in accordance with Rule 22e-4.

Because the secondary market for restricted securities is generally limited to certain qualified institutional investors, the liquidity of such securities may be limited accordingly and a fund may, from time to time, hold a Rule 144A or other security that is illiquid. In such an event, the portfolio managers will consider appropriate remedies to minimize the effect on that fund's liquidity. Each of the funds may invest no more than 15% of the value of its assets in illiquid securities.

**Secondary Listings Risk** 

A fund's shares may be listed or traded on U.S. and non-U.S. stock exchanges other than the U.S. stock exchange where the fund's primary listing is maintained. There can be no assurance that a fund's shares will continue to trade on any such stock exchange or in any market or that the fund's shares will continue to meet the requirements for listing or trading on any exchange or in any market. The fund's shares may be less actively traded in certain markets than others, and investors are subject to the execution and settlement risks and market standards of the market where they or their broker direct their trades for execution. Certain information available to investors who trade fund shares on a U.S. stock exchange during regular U.S. market hours may not be available to investors who trade in other markets, which may result in secondary market prices in such markets being less efficient.

**Short Sales**

The funds may engage in short selling. A fund engages in short selling when it sells a security it does not own. To sell a security short, a fund must borrow the security from someone else to deliver it to the buyer. That fund then replaces the borrowed security by purchasing it at the market price at or before the time of replacement. Until it replaces the security, the fund repays the person that lent it the security for any interest or dividends that may have been paid or accrued during the period of the loan. Each fund may engage in short sales for cash management purposes only if, at the time of the short sale, the fund owns or has the right to acquire securities equivalent in kind and amount to the securities being sold short.

In a short sale, the seller does not immediately deliver the securities sold and is said to have a short position in those securities until delivery occurs. To make delivery to the purchaser, the executing broker borrows the securities being sold short on behalf of the seller. While the short position is maintained, the seller collateralizes its obligation to deliver the securities sold short in an amount equal to the proceeds of the short sale plus an additional margin amount established by the Board of Governors of the Federal Reserve. If a fund engages in a short sale, the fund will segregate cash, cash equivalents or other appropriate liquid securities on its records in an

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amount sufficient to meet the purchase price. There will be additional transaction costs associated with short sales, but the fund will endeavor to offset these costs with income from the investment of the cash proceeds of short sales.

In short sale transactions, a fund's gain is limited to the price at which it sold the security short; its loss is limited only by the maximum price it must pay to acquire the security less the price at which the security was sold. In theory, losses from short sales may be unlimited. In order to borrow the security, a fund may be required to pay compensation to the lender for securities that are difficult to borrow due to demand or other factors. Short sales also cause a fund to incur brokerage fees and other transaction costs. Therefore, the amount of any gain a fund may receive from a short sale transaction is decreased and the amount of any loss increased by the amount of compensation to the lender, accrued interest or dividends and transaction costs a fund may be required to pay.

There is no guarantee that a fund will be able to close out a short position at any particular time or at a particular price. During the time that a fund is short a security, it is subject to the risk that the lender of the security will terminate the loan at a time when the fund is unable to borrow the same security from another lender. If that occurs, the fund may be "bought in" at the price required to purchase the security needed to close out the short position, which may be a disadvantageous price.

**Short-Term Securities**

In order to meet anticipated redemptions, anticipated purchases of additional securities for a fund's portfolio, or, in some cases, for temporary defensive purposes, the funds may invest a portion of their assets in money market and other short-term securities.

Examples of those securities include:

• Securities issued or guaranteed by the U.S. government and its agencies and instrumentalities;

• Commercial Paper;

• Certificates of Deposit and Euro Dollar Certificates of Deposit;

• Bankers' Acceptances;

• Short-term notes, bonds, debentures or other debt instruments;

• Repurchase agreements; and

• Money market funds.

**Tender Option Bonds**

Tender Option Bonds (TOBs) were created to increase the supply of high-quality, short-term tax-exempt obligations.

There is some risk that a remarketing agent will renege on a tender option agreement if the underlying bond is downgraded or defaults. Because of this, the portfolio managers monitor the credit quality of bonds underlying the fund's TOB holdings.

The portfolio managers also take steps to minimize the risk that a fund may realize taxable income as a result of holding TOBs. These steps may include consideration of (1) legal opinions relating to the tax-exempt status of the underlying municipal bonds, (2) legal opinions relating to the tax ownership of the underlying bonds, and (3) other elements of the structure that could result in taxable income or other adverse tax consequences. After purchase, the portfolio managers monitor factors related to the tax-exempt status of the fund's TOB holdings in order to minimize the risk of generating taxable income.

**Tracking and Correlation** 

The American Century Quality Diversified International ETF, American Century U.S. Quality Growth ETF and American Century U.S. Quality Value ETF seek to provide investment results that closely correspond, before fees and expenses, to the performance of their respective underlying indexes, although several factors may affect their ability to achieve this correlation, including, but not limited to: (1) the fund's expenses, including brokerage (which may be increased by high portfolio turnover) and the cost of the investment techniques employed by the fund; (2) the fund's holding of less than all of the securities in the underlying index, including as part of a "representative sampling" strategy, and holding securities not included in the underlying index; (3) an imperfect correlation between the performance of the fund's investments and those of its underlying index; (4) bid-ask spreads (the effect of which may be increased by portfolio turnover); (5) holding instruments traded in a market that has become illiquid or disrupted; (6) the fund's share prices being rounded to the nearest cent; (7) changes to the underlying index that are not disseminated in advance; (8) the need to conform the fund's portfolio holdings to comply with investment restrictions or policies, or regulatory or tax law requirements; (9) early and unanticipated closings of the markets on which the holdings of the fund trade, resulting in the inability of the fund to execute intended portfolio transactions; and (10) the fund's holdings of cash or cash equivalents, or otherwise not being fully invested in securities of its underlying index. While close tracking of the fund to its underlying index may be achieved on any single trading day, over time the cumulative percentage increase or decrease in the NAV of the shares of the fund may diverge significantly from the cumulative percentage decrease or increase in the underlying index due to a compounding effect.

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**U.S. Government Securities**

The funds may invest in U.S. government securities, including bills, notes and bonds issued by the U.S. Treasury and securities issued or guaranteed by agencies or instrumentalities of the U.S. government. Some U.S. government securities are supported by the direct full faith and credit pledge of the U.S. government; others are supported by the right of the issuer to borrow from the U.S. Treasury; others, such as securities issued by the Federal National Mortgage Association (FNMA), are supported by the discretionary authority of the U.S. government to purchase the agencies' obligations; and others are supported only by the credit of the issuing or guaranteeing instrumentality. There is no assurance that the U.S. government will provide financial support to an instrumentality it sponsors when it is not obligated by law to do so. Occasionally, Congressional negotiations regarding increasing the U.S. statutory debt ceiling cause uncertainty in the market. Uncertainty, or a default on U.S. government debt, could cause the credit rating of the U.S. government to be downgraded, increase volatility in debt and equity markets, result in higher interest rates, reduce prices of U.S. Treasury securities, or increase the costs of certain kinds of debt.

**Variable- and Floating-Rate Securities**

Variable- and floating-rate securities, including variable-rate demand obligations (VRDOs) and floating-rate notes (FRNs), provide for periodic adjustments to the interest rate. The adjustments are generally based on an index-linked formula, or determined through a remarketing process.

These types of securities may be combined with a put or demand feature that permits the fund to demand payment of principal plus accrued interest from the issuer or a financial institution. Examples of VRDOs include variable-rate demand notes (VRDNs) and variable rate demand preferreds (VRDPs). VRDNs combine a demand feature with an interest rate reset mechanism designed to result in a market value for the security that approximates par. VRDNs are generally designed to meet the requirements of money market fund Rule 2a-7. VRDPs are issued by a closed-end fund that in turn invests primarily in portfolios of bonds. They feature a floating rate dividend set via a weekly remarketing and have a fixed term, mandatory redemption, and an unconditional par put option.

**When-Issued and Forward Commitment Agreements**

The funds may sometimes purchase new issues of securities on a when-issued or forward commitment basis in which the transaction price and yield are each fixed at the time the commitment is made, but payment and delivery occur at a future date.

For example, a fund may sell a security and at the same time make a commitment to purchase the same or a comparable security at a future date and specified price. Conversely, a fund may purchase a security and at the same time make a commitment to sell the same or a comparable security at a future date and specified price. These types of transactions are executed simultaneously in what are known as dollar-rolls, buy/sell back transactions, cash and carry, or financing transactions. For example, a broker-dealer may seek to purchase a particular security that a fund owns. The fund will sell that security to the broker-dealer and simultaneously enter into a forward commitment agreement to buy it back at a future date. This type of transaction generates income for the fund if the dealer is willing to execute the transaction at a favorable price in order to acquire a specific security.

When purchasing securities on a when-issued or forward commitment basis, a fund assumes the rights and risks of ownership, including the risks of price and yield fluctuations. Market rates of interest on debt securities at the time of delivery may be higher or lower than those contracted for on the when-issued security. Accordingly, the value of the security may decline prior to delivery, which could result in a loss to the fund. While the fund will make commitments to purchase or sell securities with the intention of actually receiving or delivering them, it may sell the securities before the settlement date if doing so is deemed advisable as a matter of investment strategy.

To the extent a fund remains fully invested or almost fully invested at the same time it has purchased securities on a when-issued basis, there will be greater fluctuations in its NAV than if it solely set aside cash to pay for when-issued securities. When the time comes to pay for the when-issued securities, a fund will meet its obligations with available cash, through the sale of securities, or, although it would not normally expect to do so, by selling the when-issued securities themselves (which may have a market value greater or less than the fund's payment obligation). Selling securities to meet when-issued or forward commitment obligations may generate taxable capital gains or losses.

**Zero-Coupon, Step-Coupon, Range Floaters and Pay-In-Kind Securities**

Zero-coupon debt securities do not make regular cash interest payments, and are sold at a deep discount to their face value.

The fund may also purchase step-coupon or step-rate debt securities. Instead of having a fixed coupon for the life of the security, coupon or interest payments may increase to predetermined rates at future dates. The issuer generally retains the right to call the security. Some step-coupon securities are issued with no coupon payments at all during an initial period, and only become interest-bearing at a future date; these securities are sold at a deep discount to their face value.

Finally, the fund may purchase pay-in-kind securities that do not make regular cash interest payments, but pay interest through the issuance of additional securities. Because such securities do not pay current cash income, the price of these securities can be volatile when interest rates fluctuate.

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Although zero-coupon, pay-in-kind and certain range floaters and step-coupon securities may not pay current cash income, federal income tax law requires the holder to include in income each year the portion of any original issue discount and other noncash income on such securities accrued during that year. In order to continue to qualify for treatment as a regulated investment company under the Internal Revenue Code and avoid certain excise tax, the fund is required to make distributions of any original issue discount and other noncash income accrued for each year. Accordingly, the fund may be required to dispose of other portfolio securities, which may occur in periods of adverse market prices, in order to generate a case to meet these distribution requirements.

**Investment Policies**

Unless otherwise indicated, with the exception of the percentage limitations on borrowing, the following policies apply at the time a fund enters into a transaction. Accordingly, any later increase or decrease beyond the specified limitation resulting from a change in a fund's assets will not be considered in determining whether it has complied with its investment policies.

**Fundamental Investment Policies**

The funds' fundamental investment policies are set forth below. These investment policies and a fund's status as diversified may not be changed without approval of a majority of the outstanding votes of shareholders of a fund. Under the Investment Company Act, the vote of a majority of the outstanding votes of shareholders means, the vote of (A) 67 percent or more of the voting securities present at a shareholder meeting, if the holders of more than 50 percent of the outstanding voting securities are present or represented by proxy; or (B) more than 50 percent of the outstanding voting securities, whichever is less.

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| | |
|:---|:---|
| *Subject* | *Policy* |
| Senior Securities | A fund may not issue senior securities, except as permitted under the Investment Company Act. |
| Borrowing | A fund may not borrow money, except to the extent permitted by the Investment Company Act, or any rules, exemptions or interpretations thereunder that may be adopted, granted or issued by the SEC. |
| Lending | A fund may not make loans if, as a result, more than 33 1/3% of its total assets would be lent to other persons, including other investment companies to the extent permitted by the Investment Company Act or any rules, exemptions or interpretations thereunder that may be adopted, granted or issued by the SEC. This limitation does not apply to (i) the lending of portfolio securities, (ii) the purchase of debt securities, other debt instruments, loan participations and/or engaging in direct corporate loans in accordance with its investment goals and policies, and (iii) repurchase agreements to the extent the entry into a repurchase agreement is deemed to be a loan. |
| Real Estate | A fund may not purchase or sell real estate unless acquired as a result of ownership of securities or other instruments. This policy shall not prevent a fund from investing in securities or other instruments backed by real estate or securities of companies that deal in real estate or are engaged in the real estate business. |
| Concentration | Other than stated below, a fund may not concentrate its investments in securities of issuers in a particular industry (other than securities issued or guaranteed by the U.S. government or any of its agencies or instrumentalities). American Century U.S. Quality Value ETF will concentrate to approximately the same extent as its underlying index concentrates in the securities of a particular industry or group of industries. Accordingly, if its underlying index stops concentrating in the securities of a particular industry or group of industries, the fund will also discontinue concentrating in such securities. American Century Quality Diversified International ETF and American Century U.S. Quality Growth ETF may concentrate to the extent that their respective underlying indexes concentrate in the securities of a particular industry or group of industries. Accordingly, if one of their underlying indexes stops concentrating in the securities of a particular industry or group of industries, the applicable fund may discontinue concentrating in such securities. |
| Underwriting | A fund may not act as an underwriter of securities issued by others, except to the extent that the fund may be considered an underwriter within the meaning of the 1933 Act in the disposition of restricted securities. |
| Commodities | A fund may not purchase or sell commodities, except to the extent permitted by the Investment Company Act or any rules, exemptions or interpretations thereunder that may be adopted, granted or issued by the SEC. |

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For purposes of the investment policy relating to senior securities, a fund may borrow from any bank provided that immediately after any such borrowing there is asset coverage of at least 300% for all borrowings of such fund. In the event that such asset coverage falls below 300%, the fund shall, within three days thereafter (not including Sundays and holidays) or such longer period as the SEC may prescribe by rules and regulations, reduce the amount of its borrowings to an extent that the asset coverage of such borrowings is at least 300%.

In complying with the fundamental investment policy relating to concentration:

(a)there is no limitation with respect to obligations issued or guaranteed by the U.S. government, any state, territory or possession of the United States, the District of Columbia or any of their authorities, agencies, instrumentalities or political subdivisions and

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repurchase agreements secured by such obligations (except that an Industrial Development Bond backed only by the assets and revenues of a non-governmental user will be deemed to be an investment in the industry represented by such user);

(b)wholly owned finance companies will be considered to be in the industries of their parents if their activities are primarily related to financing the activities of their parents;

(c)utilities will be divided according to their services, for example, gas, gas transmission, electric and gas, electric and telephone will each be considered a separate industry;

(d)personal credit and business credit businesses will be considered separate industries; and

(e)to monitor compliance with the policy regarding industry concentration, the funds may use the industry classifications provided by the Bloomberg Industry Classification Standard (BICS), the MSCI Global Industry Classification Standard (GICS), or any other reasonable industry classification system. For example, currently, the GICS Financials sector includes the following industries Banks, Thrifts and Mortgage Finance, Diversified Financial Services, Consumer Finance, Capital Markets, Mortgage Real Estate Investment Trusts (REITS), and Insurance, and the BICS Financials sector includes Banking, Commercial Finance, Consumer Finance, Financial Services, Life Insurance, Property and Casualty, and Real Estate.

Although the funds' fundamental investment policy relating to commodities would permit investments in commodities, neither fund currently intends to purchase or sell physical commodities unless acquired as a result of ownership of securities or other instruments. The funds may, however, purchase or sell options and futures contracts or invest in securities or other instruments backed by physical commodities to the extent permitted by such fund's investment objectives and policies.

In addition, American Century California Municipal Bond ETF and American Century Diversified Municipal Bond ETF have adopted fundamental investment policies in accordance with Rule 35d-1 under the Investment Company Act to invest at least 80% of their assets in the type of investments suggested by their respective names. For purposes of such investment policy, "assets" include the fund's net assets, plus the amount of any borrowings for investment purposes. American Century California Municipal Bond ETF will invest at least 80% of the fund's assets in municipal securities with interest payments exempt from federal and California income taxes. American Century Diversified Municipal Bond ETF will invest at least 80% of the fund's assets in municipal securities with interest payments exempt from federal income tax.

**Nonfundamental Investment Policies**

The funds are subject to the following investment policies that are not fundamental and may be changed by the Board of Trustees.

Each fund's investment objective is a nonfundamental investment policy and may be changed by the Board of Trustees without approval by shareholders.

American Century Diversified Corporate Bond ETF, American Century Multisector Floating Income ETF, American Century Select High Yield ETF, American Century Small Cap Growth Insights ETF, American Century Small Cap Value Insights ETF, American Century U.S. Quality Growth ETF, and American Century U.S. Quality Value ETF have adopted nonfundamental investment policies in accordance with Rule 35d-1 under the Investment Company Act to invest at least 80% of their assets in the type of investments suggested by their respective names. For purposes of such investment policy, "assets" include the fund's net assets, plus the amount of any borrowings for investment purposes. The American Century U.S. Quality Growth ETF and American Century U.S. Quality Value ETF consider the securities or investments that are the type of investments suggested by their respective names to be those securities or investments that comprise their respective underlying indexes. The Diversified Corporate Bond will invest at least 80% of the fund's assets in corporate debt securities and investments. Each such fund's Rule 35d-1 80% policy is nonfundamental, which means that it may be changed by the board of trustees without the approval of shareholders. Shareholders will be given at least 60 days' notice of any change to a fund's Rule 35d-1 80% policy.

A fund may not purchase any security or enter into a repurchase agreement if, as a result, more than 15% of its net assets would be invested in illiquid securities. Illiquid securities include repurchase agreements not entitling the holder to payment of principal and interest within seven days, and securities that are illiquid by virtue of legal or contractual restrictions on resale or the absence of a readily available market.

The Investment Company Act imposes certain additional restrictions upon the funds' ability to acquire securities issued by insurance companies, broker-dealers, underwriters or investment advisors, and upon transactions with affiliated persons as defined by the Act. It also defines and forbids the creation of cross and circular ownership.

**Temporary Defensive Measures**

For temporary defensive purposes, the American Century California Municipal Bond ETF, American Century Diversified Corporate Bond ETF, American Century Diversified Municipal Bond ETF, American Century Multisector Floating Income ETF, American Century Multisector Income ETF, American Century Securitized Credit ETF, American Century Select High Yield ETF, American Century Short Duration Strategic Income ETF, American Century Small Cap Growth Insights ETF and American Century Small Cap Value Insights ETF may invest without limit in securities that are inconsistent with their respective principal investment strategies. During a temporary defensive period, the funds may direct asset without limit to the following investment vehicles:

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• cash, cash equivalents, money market instruments or other high quality short-term investments (such as commercial paper and short-term notes, bonds, or other debt instruments);

• interest-bearing bank accounts or certificates of deposit;

• U.S. government securities and repurchase agreements collateralized by U.S. government securities; and

• senior securities that are high-grade issues, in the opinion of the portfolio managers.

To the extent a fund assumes a defensive position, it may not achieve its investment objective.

**Portfolio Turnover**

The portfolio turnover rate of each fund for its most recent fiscal year will be included in the *Fund Summary* section of that fund's prospectus. The portfolio turnover rate for each fund's last five fiscal years (or a shorter period if the fund is less than five years old) will be shown in the Financial Highlights tables in the prospectus. Variations in a fund's portfolio turnover rate from year to year may be due to a fluctuating volume of shareholder purchase and redemption activity, varying market conditions, and/or changes in the managers' investment outlook.

The portfolio managers will sell securities without regard to the length of time the security has been held. Because the portfolio managers do not take portfolio turnover rate into account in making investment decisions, (1) the managers have no intention of maintaining any particular rate of portfolio turnover, whether high or low; and (2) the portfolio turnover rates in the past should not be considered as representative of the rates that will be attained in the future.

**Disclosure of Portfolio Holdings**

ACIM has adopted policies and procedures with respect to the disclosure of fund portfolio holdings and characteristics, which are described below.

**Distribution to the Public**

On each business day of a fund, before commencement of trading in shares on a national securities exchange, the fund will disclose on its website the identities and quantities of the fund's portfolio holdings that will form the basis for the fund's calculation of NAV at the end of that business day.

Portfolio holdings are also disclosed in annual and semiannual shareholder reports. Quarterly portfolio disclosures will be filed with the Securities and Exchange Commission on Form N-PORT within 60 days of each fiscal quarter end.

In addition, each business day, each fund's portfolio holdings information will be provided to the funds' transfer agent or other agents for dissemination through the facilities of the National Securities Clearing Corporation (NSCC) and/or other fee-based subscription services to NSCC members and/or subscribers to those other fee-based subscription services, including large institutional investors (known as "Authorized Participants") that have been authorized to purchase and redeem large blocks of shares pursuant to legal requirements, and to entities that publish and/or analyze such information in connection with the process of purchasing or redeeming Creation Units or trading shares of a fund in the secondary market.

Portfolio holdings information made available in connection with the creation/redemption process may be provided to other entities that provide services to the fund in the ordinary course of business after it has been disseminated to the NSCC. From time to time, information concerning portfolio holdings other than portfolio holdings information made available in connection with the creation/redemption process, as discussed above, may be provided to other entities that provide services to a fund in the ordinary course of business, no earlier than one business day following the date of the information. The eligible third parties to whom portfolio holdings information may be released in advance of general release fall into the following categories: data consolidators (including rating agencies), fund rating/ranking services and other data providers and service providers to the fund, including Authorized Participants and pricing services.

**Continuous Offering**

The method by which Creation Units are created and traded may raise certain issues under applicable securities laws. Because new Creation Units are issued and sold by the funds on an ongoing basis, at any point a "distribution," as such term is used in the 1933 Act, may occur. Broker-dealers and other persons are cautioned that some activities on their part may, depending on the circumstances, result in their being deemed participants in a distribution in a manner that could render them statutory underwriters and subject them to the prospectus delivery requirement and liability provisions of the 1933 Act.

For example, a broker-dealer firm or its client may be deemed a statutory underwriter if it takes Creation Units after placing an order with the transfer agent, breaks them down into constituent shares and sells such shares directly to customers or if it chooses to couple the creation of new shares with an active selling effort involving solicitation of secondary market demand for shares. A determination of whether one is an underwriter for purposes of the 1933 Act must take into account all the facts and circumstances pertaining to the

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activities of the broker-dealer or its client in the particular case and the examples mentioned above should not be considered a complete description of all the activities that could lead to a categorization as an underwriter.

Broker-dealer firms should also note that dealers who are not "underwriters" but are effecting transactions in shares, whether or not participating in the distribution of shares, generally are required to deliver a prospectus. This is because the prospectus delivery exemption in Section 4(a)(3) of the 1933 Act is not available in respect of such transactions as a result of Section 24(d) of the Investment Company Act. Firms that incur a prospectus delivery obligation with respect to shares of the fund are reminded that, pursuant to Rule 153 under the 1933 Act, a prospectus delivery obligation under Section 5(b)(2) of the 1933 Act owed to an exchange member in connection with a sale on the Listing Exchange is satisfied by the fact that the prospectus is available at the Listing Exchange upon request. The prospectus delivery mechanism provided in Rule 153 is available only with respect to transactions on an exchange.

**Management**

**The Board of Trustees**

The individuals listed below serve as trustees of the funds. Each trustee will continue to serve in this capacity until death, retirement, resignation or removal from office. The board has adopted a mandatory retirement age for trustees who are not "interested persons," as that term is defined in the Investment Company Act (independent trustees). Trustees who are not also officers of the trust shall retire on December 31st of the year in which they reach their 75th birthday.

Jonathan S. Thomas is an "interested person" because he currently serves as President and Chief Executive Officer of American Century Companies, Inc. (ACC), the parent company of American Century Investment Management, Inc. (ACIM or the advisor). The other trustees are independent. They are not employees, directors or officers of, and have no financial interest in, ACC or any of its wholly owned, direct or indirect, subsidiaries, including ACIM and American Century Services, LLC (ACS), and they do not have any other affiliations, positions or relationships that would cause them to be considered "interested persons" under the Investment Company Act. The following trustees also serve in this capacity for a number of other registered investment companies in the American Century Investments family of funds: Jonathan S. Thomas, 15; Jeremy I. Bulow, 8; and Thomas W. Bunn, 7.

The following table presents additional information about the trustees. The mailing address for each trustee other than Jonathan S. Thomas is 330 Madison Avenue, New York, New York 10017. The mailing address for Jonathan S. Thomas is 4500 Main Street, Kansas City, Missouri 64111.

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *Name (Year of Birth)* | *Position(s)<br>Held with<br>Funds* | *Length of<br>Time Served* | *Principal Occupation(s) During Past 5 Years* | *Number of<br>American<br>Century<br>Portfolios<br>Overseen<br>by Trustee* | *Other Directorships<br>Held During Past<br>5 Years* |
| **Independent Trustees** | **Independent Trustees** |  |  |  |  |
| Reginald M. Browne<br>(1968) | Trustee and Chairman of the Board | Since 2017 (Chairman since 2019) | Principal, *GTS Securities* (automated capital markets trading firm) (2019 to present) | 56 |  |
| Jeremy I. Bulow<br>(1954) | Trustee | Since 2022 | Professor of Economics, *Stanford University Graduate School of Business* (1979 to present) | 85 |  |
| Thomas W. Bunn (1953) | Director | Since 2023 | Retired | 108 |  |
| Barry A. Mendelson<br>(1958) | Trustee | Since 2017 | Retired | 56 |  |
| **Interested Trustee** | **Interested Trustee** |  |  |  |  |
| Jonathan S. Thomas<br>(1963) | Trustee | Since 2017 | Chairman, *ACC* (April 2025 to present); President and Chief Executive Officer, *ACC* (2007 to present). Also serves as Director, *ACC* and other *ACC* subsidiaries | 137 |  |

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**Qualifications of Trustees**

Generally, no one factor was decisive in the selection of the trustees to the board. Qualifications considered by the board to be important to the selection and retention of trustees include the following: (i) the individual's business and professional experience and accomplishments; (ii) the individual's educational background and accomplishments; (iii) the individual's experience and expertise

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performing senior policy-making functions in business, government, education, accounting, law and/or administration; (iv) how the individual's expertise and experience would contribute to the mix of relevant skills and experience on the board; (v) the individual's ability to work effectively with the other members of the board; and (vi) the individual's ability and willingness to make the time commitment necessary to serve as an effective trustee. In addition, the individuals' ability to review and critically evaluate information, their ability to evaluate fund service providers, their ability to exercise good business judgment on behalf of fund shareholders, their prior service on the board, and their familiarity with the funds are considered important assets.

While the board has not adopted a specific policy on diversity, it takes overall diversity into account when considering and evaluating nominees for trustee. The board generally considers the manner in which each trustee's professional experience, background, skills, and other individual attributes will contribute to the effectiveness of the board. Additional information about each trustee's individual educational and professional experience (supplementing the information provided in the table above) follows and was considered as part of his or her nomination to, or retention on, the board.

**Reginald M. Browne:** BS in Business Administration, La Salle University; formerly, Senior Managing Director, Co Global Head-ETF Group, Cantor Fitzgerald (financial services firm); 29 years of experience in the ETF industry with a core focus on market-making and institutional sales

**Jeremy I. Bulow:** BA, MA, Yale University; PhD in Economics, Massachusetts Institute of Technology; formerly, Director, Bureau of Economics, Federal Trade Commission

**Thomas W. Bunn**: BS in Business Administration, Wake Forest University; MBA in Finance, University of North Carolina at Chapel Hill; formerly Vice Chairman and President, KeyCorp (banking services); 31 years of experience in investment, commercial and corporate banking; managing directorship roles with Bank of America

**Barry A. Mendelson:** AB, Geology, Vassar College; JD, The George Washington University School of Law; formerly, Principal and Senior Counsel, *The Vanguard Group* (investment management); 8 years of experience with the U.S. Securities and Exchange Commission, Division of Investment Management; 30+ years of experience in the investment management industry, primarily mutual funds and ETFs, with an emphasis on regulatory and compliance matters

**Jonathan S. Thomas:** BA in Economics, University of Massachusetts; MBA, Boston College; formerly held senior leadership roles with Fidelity Investments, Boston Financial Services, Bank of America and Morgan Stanley; serves on the Board of Governors of the Investment Company Institute

**Responsibilities of the Board**

The board is responsible for overseeing the advisor's management and operations of the funds pursuant to the management agreement. Trustees also have significant responsibilities under the federal securities laws. Among other things, they:

• oversee the performance of the funds;

• oversee the quality of the advisory and shareholder services provided by the advisor;

• review annually the fees paid to the advisor for its services;

• monitor potential conflicts of interest between the funds and their affiliates, including the advisor;

• oversee custody of assets and the valuation of securities; and

• oversee the funds' compliance program.

In performing their duties, board members receive detailed information about the funds and the advisor regularly throughout the year, and they meet in person at least quarterly with management of the advisor to review reports about fund operations. The trustees' role is to provide oversight and not to provide day-to-day management.

The board has all powers necessary or convenient to carry out its responsibilities. Consequently, the board may adopt bylaws providing for the regulation and management of the affairs of the funds and may amend and repeal them to the extent that such bylaws do not reserve that right to the funds' shareholders. They may increase or reduce the number of board members and may, subject to the Investment Company Act, fill board vacancies. Board members also may elect and remove such officers and appoint and terminate such agents as they consider appropriate. They may establish and terminate committees consisting of two or more trustees who may exercise the powers and authority of the board as determined by the trustees. They may, in general, delegate such authority as they consider desirable to any officer of the funds, to any board committee and to any agent or employee of the funds or to any custodian, transfer agent, investor servicing agent, principal underwriter or other service provider for a fund.

To communicate with the board, or a member of the board, a shareholder should send a written communication addressed to the board or member of the board to the attention of the Corporate Secretary at the following address: P.O. Box 418210, Kansas City, Missouri 64141-9210. Shareholders who prefer to communicate by email may send their comments to corporatesecretary@americancentury.com. All shareholder communications received will be forwarded to the board or the independent board chair.

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**Board Leadership Structure and Standing Board Committees**

Reginald M. Browne serves as the independent board chair and has served in such capacity since 2019. All of the board's members except Jonathan S. Thomas are independent trustees. The independent trustees meet separately to consider a variety of matters that are scheduled to come before the board and meet periodically with the funds' Chief Compliance Officer and fund auditors. They are advised by independent legal counsel. No independent trustee may serve as an officer or employee of a fund. The board has also established an Audit Committee, described below, comprised solely of independent trustees. The board believes that the current leadership structure is appropriate and allows for independent oversight of the funds.

The board has an Audit Committee that approves the funds' (or trust's) engagement of the independent registered public accounting firm and recommends approval of such engagement to the independent trustees. The committee also oversees the activities of the accounting firm, receives regular reports regarding fund accounting, oversees securities valuation (approving the funds' valuation policy and receiving reports regarding instances of fair valuation thereunder) and receives regular reports from the advisor's internal audit department. The committee currently consists of Barry A. Mendelson (chair), Reginald M. Browne, Jeremy I. Bulow and Thomas W. Bunn. It met two times during the fiscal year ended August 31, 2025.

**Risk Oversight by the Board**

As previously disclosed, the board oversees the advisor's management of the funds and meets at least quarterly with management of the advisor to review reports and receive information regarding fund operations. Risk oversight relating to the funds is one component of the board's oversight and is undertaken in connection with the duties of the board. The board oversees various types of risks relating to the funds, including, but not limited to, investment risk, operational risk and enterprise risk. Through its regular interactions with management of the advisor during and between meetings, the board will provide oversight of the advisor's risk management processes. In addition, the board will receive information regarding, and have discussions with senior management of the advisor about, the advisor's enterprise risk management systems and strategies. There can be no assurance that all elements of risk, or even all elements of material risk, will be disclosed to or identified by the board, or that the advisor's risk management systems and strategies, and the board's oversight thereof, will mitigate all elements of risk, or even all elements of material risk to the funds.

**Board Compensation**

For the fiscal year ended August 31, 2025, trustees listed in the following table received the amounts shown for services on the trust's board and on the boards of other funds in the American Century family of funds if applicable. Neither Jonathan S. Thomas nor any officers of the funds receives compensation from the funds.

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| | | |
|:---|:---|:---|
| *Name of Trustee* | *Total Compensation for Service as Trustee to the Trust*<sup>1,2</sup> | *Total Compensation for Services as Directors/Trustees for the American Century Investments Family of Funds*<sup>3</sup> |
| Reginald M. Browne | $333333 | $333333 |
| Jeremy I. Bulow | $253333 | $558333 |
| Thomas W. Bunn | $253334 | $596834 |
| Barry A. Mendelson | $276667 | $276667 |

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<sup>1&nbsp;&nbsp;&nbsp;&nbsp;</sup>*Includes compensation paid to the trustees for the fiscal year ended August 31, 2025, and also includes amounts deferred at the election of the trustees under the American Century Mutual Funds' Independent Directors' Deferred Compensation Plan.*

<sup>2&nbsp;&nbsp;&nbsp;&nbsp;</sup>*Reflects the compensation paid to each trustee for the funds in this SAI aggregated with the compensation paid to the trustees for other series of the trust.*

<sup>3&nbsp;&nbsp;&nbsp;&nbsp;</sup>*Includes compensation paid to each trustee for his service as director/trustee for one (in the case of Mr. Bulow, nine; Mr. Bunn, seven; and Mr. Yates, eight) investment company in the American Century Investments family of funds. Includes deferred compensation paid under the American Century Mutual Funds' Independent Directors' Deferred Compensation Plan as follows: Mr. Browne, $333,333; Mr. Bulow, $317,833; Mr. Bunn, $208,892; and Mr. Mendelson, $130,000.*

None of the funds currently provides any pension or retirement benefits to the trustees except pursuant to the American Century Mutual Funds' Independent Directors' Deferred Compensation Plan adopted by the trust. Under the plan, the independent trustees may defer receipt of all or any part of the fees to be paid to them for serving as trustees of the funds. All deferred fees are credited to accounts established in the names of the trustees. The amounts credited to each account then increase or decrease, as the case may be, in accordance with the performance of one or more American Century funds selected by the trustees. The account balance continues to fluctuate in accordance with the performance of the selected fund or funds until final payment of all amounts credited to the account. Trustees are allowed to change their designation of funds from time to time.

Generally, deferred fees are not payable to a trustee until the distribution date elected by the trustee in accordance with the terms of the plan. Such distribution date may be a date on or after the trustee's retirement date, but may be an earlier date if the trustee agrees not to make any additional deferrals after such distribution date. Distributions may commence prior to the elected payment date for certain

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reasons specified in the plan, such as unforeseeable emergencies, death or disability. Trustees may receive deferred fee account balances either in a lump sum payment or in substantially equal installment payments to be made over a period not to exceed 10 years. Upon the death of a trustee, all remaining deferred fee account balances are paid to the trustee's beneficiary or, if none, to the trustee's estate.

The plan is an unfunded plan and, accordingly, the funds have no obligation to segregate assets to secure or fund the deferred fees. To date, the funds have met all payment obligations under the plan. The rights of trustees to receive their deferred fee account balances are the same as the rights of a general unsecured creditor of the funds. The plan may be terminated at any time by the administrative committee of the plan. If terminated, all deferred fee account balances will be paid in a lump sum.

**Ownership of Fund Shares**

The trustees owned shares in the funds as of December 31, 2025, as shown in the table below. American Century Securitized Credit ETF had not yet commenced operations as of such date and are not included in the table below.

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **Name of Trustee**  | **Name of Trustee**  | **Name of Trustee**  | **Name of Trustee**  | **Name of Trustee**  |
| | *Reginald M. Browne* | *Jeremy I.<br>Bulow* | *Thomas W.<br>Bunn* | *Barry A. Mendelson* | *Jonathan S. Thomas* |
| **Dollar Range of Equity Securities in the Fund:** | | | | | |
| American Century California Municipal Bond ETF | [ ] | [ ] | [ ] | [ ] | [ ] |
| American Century Diversified Corporate Bond ETF | [ ] | [ ] | [ ] | [ ] | [ ] |
| American Century Diversified Municipal Bond ETF | [ ] | [ ] | [ ] | [ ] | [ ] |
| American Century Multisector Floating Income ETF | [ ] | [ ] | [ ] | [ ] | [ ] |
| American Century Multisector Income ETF | [ ] | [ ] | [ ] | [ ] | [ ] |
| American Century Quality Diversified International ETF | [ ] | [ ] | [ ] | [ ] | [ ] |
| American Century Select High Yield ETF  | [ ] | [ ] | [ ] | [ ] | [ ] |
| American Century Short Duration Strategic Income ETF | [ ] | [ ] | [ ] | [ ] | [ ] |
| American Century Small Cap Growth Insights ETF | [ ] | [ ] | [ ] | [ ] | [ ] |
| American Century Small Cap Value Insights ETF | [ ] | [ ] | [ ] | [ ] | [ ] |
| American Century U.S. Quality Growth ETF | [ ] | [ ] | [ ] | [ ] | [ ] |
| American Century U.S. Quality Value ETF | [ ] | [ ] | [ ] | [ ] | [ ] |
| **Aggregate Dollar Range of Equity Securities<br>in all Registered Investment Companies Overseen by Trustees in Family of Investment Companies** | **[ ]** | **[ ]** | **[ ]** | **[ ]** | **[ ]** |

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*Ranges: A—none, B—$1-$10,000, C—$10,001-$50,000, D—$50,001-$100,000, E—More than $100,000*

**Beneficial Ownership of Affiliates by Independent Trustees**

No independent trustee or his or her immediate family members beneficially owned shares of the advisor, the funds' principal underwriter or any other person directly or indirectly controlling, controlled by, or under common control with the advisor or the funds' principal underwriter as of the date of this SAI.

**Officers**

The following table presents certain information about the executive officers of the funds. Each officer, except Cleo Chang, serves as an officer for each of the 16 investment companies in the American Century family of funds. No officer is compensated for his or her service as an officer of the funds. The listed officers are interested persons of the funds and are appointed or re-appointed on an annual basis. The mailing address for each officer listed below is 4500 Main Street, Kansas City, Missouri 64111.

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| | | |
|:---|:---|:---|
| *Name<br>(Year of Birth)* | *Offices with the Funds* | *Principal Occupation(s) During the Past Five Years* |
| Patrick Bannigan<br>(1965) | President since 2019 | Executive Vice President and Director, *ACC* (2012 to present); Chief Financial Officer, Chief Accounting Officer and Treasurer, *ACC* (2015 to present). Also serves as President, *ACS*; Vice President, *ACIM*; Chief Financial Officer, Chief Accounting Officer and/or Director, *ACIM, ACS* and other *ACC* subsidiaries |
| R. Wes Campbell<br>(1974) | Chief Financial<br>Officer and Treasurer <br>since 2018; Vice President since 2023 | Vice President, *ACS* (2020 to present); Investment Operations and Investment Accounting, *ACS* (2000 to present) |

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| | | |
|:---|:---|:---|
| *Name<br>(Year of Birth)* | *Offices with the Funds* | *Principal Occupation(s) During the Past Five Years* |
| Amy D. Shelton<br>(1964) | Chief Compliance Officer and Vice President since 2017 | Chief Compliance Officer, American Century funds, (2014 to present); Chief Compliance Officer, *ACIM* (2014 to present); Chief Compliance Officer, *ACIS* (2009 to present). Also serves as Vice President, *ACIS* |
| John Pak<br>(1968) | General Counsel and<br>Vice President since 2021 | General Counsel and Senior Vice President, *ACC* (2021 to present); Also serves as General Counsel and Senior Vice President, *ACIM*, *ACS* and *ACIS*. Chief Legal Officer of Investment and Wealth Management, The Bank of New York Mellon (2014 to 2021) |
| Cleo Chang<br>(1977) | Vice President since 2019 | Senior Vice President, *ACIM* (2015 to present) |
| Cihan Kasikara<br>(1974) | Vice President since 2023 | Senior Vice President, *ACS* (2022 to present); Treasurer, *ACS* (2023 to present); Vice President, *ACS* (2020 to 2022) |
| Kathleen Gunja Nelson<br>(1976) | Vice President since 2023 | Vice President, *ACS* (2017 to present) |
| Ashley L. Bergus<br>(1987) | Secretary since 2025 | Vice President, *ACS* (2024 to present); Attorney, *ACC* (2014 to present) |

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**Code of Ethics**

The funds and the advisor have adopted codes of ethics under Rule 17j-1 of the Investment Company Act. They permit personnel subject to the codes to invest in securities, including securities that may be purchased or held by the funds, provided that they first obtain approval from the compliance department before making such investments. The funds' distributor (Foreside Fund Services, LLC) relies on the principal underwriters exception under Rule 17j-1(c)(3), specifically where the distributor is not affiliated with the Trust or the advisor, and no officer, director or general partner of the distributor serves as an officer, director or general partner of the Trust or the advisor.

**Proxy Voting Policies**

The advisor is responsible for exercising the voting rights associated with the securities purchased and/or held by the funds. The funds' Board of Trustees has approved the advisor's proxy voting policies to govern the advisor's proxy voting activities.

A copy of the advisor's proxy voting policies is attached hereto as *Appendix C*. Information regarding how the advisor voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is available at americancentury.com/docs or may be requested free of charge by calling toll-free at 1-800-345-2021. The advisor's proxy voting record also is available on the SEC's website at sec.gov.

**The Funds' Principal Shareholders**

The name and percentage ownership of each DTC Participant (as defined below) that owns of record 5% or more of the outstanding shares of a fund are listed in *Appendix A*. The trust generally does not have information concerning the beneficial ownership of shares held by DTC Participants.

Following the creation of the initial Creation Unit(s) of shares of a fund and immediately prior to the commencement of trading in the fund's shares, a holder of shares may be a "control person" of the fund, as defined in the Investment Company Act. A fund cannot predict the length of time for which one or more shareholders may remain a control person of the fund.

Depository Trust Company (DTC) acts as securities depository for shares of the funds. Shares of the funds are represented by securities registered in the name of DTC or its nominee and deposited with, or on behalf of, DTC.

DTC was created in 1973 to enable electronic movement of securities between its participants (DTC Participants), and NSCC was established in 1976 to provide a single settlement system for securities clearing and to serve as central counterparty for securities trades among DTC Participants. In 1999, DTC and NSCC were consolidated within the Depository Trust & Clearing Corporation (DTCC) and became wholly owned subsidiaries of DTCC. The common stock of DTCC is owned by the DTC Participants, but the New York Stock Exchange and FINRA, through subsidiaries, hold preferred shares in DTCC that provide them with the right to elect one member each to the DTCC Board of Directors. Access to the DTC system is available to entities, such as banks, brokers, dealers and trust companies, that clear through or maintain a custodial relationship with a DTC Participant, either directly or indirectly (Indirect Participants).

Beneficial ownership of shares is limited to DTC Participants, Indirect Participants and persons holding interests through DTC Participants and Indirect Participants. Ownership of beneficial interests in shares (owners of such beneficial interests are referred to herein as "Beneficial Owners") is shown on, and the transfer of ownership is effected only through, records maintained by DTC (with respect to DTC Participants) and on the records of DTC Participants (with respect to Indirect Participants and Beneficial Owners that

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are not DTC Participants). Beneficial Owners will receive from or through the DTC Participant a written confirmation relating to their purchase of shares. The laws of some jurisdictions may require that certain purchasers of securities take physical delivery of such securities in definitive form. Such laws may impair the ability of certain investors to acquire beneficial interests in shares.

Conveyance of all notices, statements and other communications to Beneficial Owners is effected as follows. Pursuant to the Depositary Agreement between the trust and DTC, DTC is required to make available to the trust upon request and for a fee to be charged to the trust a listing of the shares of a fund held by each DTC Participant. The trust shall inquire of each such DTC Participant as to the number of Beneficial Owners holding shares, directly or indirectly, through such DTC Participant. The trust shall provide each such DTC Participant with copies of such notice, statement or other communication, in such form, number and at such place as such DTC Participant may reasonably request, in order that such notice, statement or communication may be transmitted by such DTC Participant, directly or indirectly, to such Beneficial Owners. In addition, the trust shall pay to each such DTC Participant a fair and reasonable amount as reimbursement for the expenses attendant to such transmittal, all subject to applicable statutory and regulatory requirements.

Share distributions shall be made to DTC or its nominee, Cede & Co., as the registered holder of all shares of the trust. DTC or its nominee, upon receipt of any such distributions, shall credit immediately DTC Participants' accounts with payments in amounts proportionate to their respective beneficial interests in shares of the fund as shown on the records of DTC or its nominee. Payments by DTC Participants to Indirect Participants and Beneficial Owners of shares held through such DTC Participants will be governed by standing instructions and customary practices, as is now the case with securities held for the accounts of customers in bearer form or registered in a "street name," and will be the responsibility of such DTC Participants.

The trust has no responsibility or liability for any aspect of the records relating to or notices to Beneficial Owners, or payments made on account of beneficial ownership interests in such shares, or for maintaining, supervising or reviewing any records relating to such beneficial ownership interests, or for any other aspect of the relationship between DTC and the DTC Participants or the relationship between such DTC Participants and the Indirect Participants and Beneficial Owners owning through such DTC Participants. DTC may decide to discontinue providing its service with respect to shares of the trust at any time by giving reasonable notice to the trust and discharging its responsibilities with respect thereto under applicable law. Under such circumstances, the trust shall take action to find a replacement for DTC to perform its functions at a comparable cost.

**Seed Capital**

The advisor or its affiliates (Selling Shareholders) may purchase shares of a fund through a broker-dealer to "seed" funds as they are launched, or may purchase fund shares from other broker-dealers that have previously provided "seed" for funds when they were launched, or otherwise in secondary market transactions. The fund shares are being registered to permit the resale of these fund shares from time to time after purchase. The funds will not receive any of the proceeds from the resale by the Selling Shareholders of these fund shares.

The Selling Shareholders intend to sell all or a portion of the fund shares owned by them and offered hereby from time to time directly or through one or more broker-dealers. The fund shares may be sold on any national securities exchange on which the fund shares may be listed or quoted at the time of sale, in the over-the-counter market or in transactions other than on these exchanges or systems at fixed prices, at prevailing market prices at the time of the sale, at varying prices determined at the time of sale, or at negotiated prices. These sales may be effected in transactions, which may involve crosses or block transactions.

**Creation and Redemption of Creation Units**

**General** 

The trust issues and sells shares of the funds only in Creation Units on a continuous basis through the distributor, without a sales load, at a price based on a fund's NAV next determined after receipt, on any Business Day (as defined below), of an order received by the transfer agent in proper form. On days when the Listing Exchange closes earlier than normal, a fund may require orders to be placed earlier in the day. The following table sets forth the number of shares of the fund that constitute a Creation Unit for each fund.

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| | |
|:---|:---|
| **Fund** | **Shares Per Creation Unit** |
| American Century California Municipal Bond ETF | 50000 |
| American Century Diversified Corporate Bond ETF | 50000 |
| American Century Diversified Municipal Bond ETF | 50000 |
| American Century Multisector Floating Income ETF | 50000 |
| American Century Multisector Income ETF | 50000 |
| American Century Quality Diversified International ETF | 50000 |
| American Century Securitized Credit ETF | [ ] |
| American Century Select High Yield ETF | 50000 |
| American Century Short Duration Strategic Income ETF | 50000 |
| American Century Small Cap Growth Insights ETF | 25000 |
| American Century Small Cap Value Insights ETF  | 25000 |
| American Century U.S. Quality Growth ETF | 25000 |
| American Century U.S. Quality Value ETF | 25000 |

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The advisor and the Trustees reserve the right to increase or decrease the number of a fund's shares that constitute a Creation Unit. The board reserves the right to declare a split or a consolidation in the number of shares outstanding of a fund, and to make a corresponding change in the number of shares constituting a Creation Unit, in the event that the per share price in the secondary market rises (or declines) to an amount that falls outside the range deemed desirable by the board.

A "Business Day" with respect to the funds is any day on which the Listing Exchange on which a fund is listed for trading is open for business. As of the date of this SAI, the Listing Exchange observes the following holidays: New Year's Day, Martin Luther King, Jr. Day, Washington's Birthday, Good Friday, Memorial Day, Juneteenth National Independence Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.

To the extent a fund engages in in-kind transactions, the fund intends to comply with the U.S. federal securities laws in accepting securities for deposit and satisfying redemptions with redemption securities by, among other means, assuring that any securities accepted for deposit and any securities used to satisfy redemption requests will be sold in transactions that would be exempt from registration under the 1933 Act. Further, an Authorized Participant that is not a "qualified institutional buyer," as such term is defined under Rule 144A of the 1933 Act, will not be able to receive securities that are restricted securities eligible for resale under Rule 144A.

**Fund Deposit**

The consideration for purchase of Creation Units of a fund generally consists of the Deposit Securities (*i.e.*, the in-kind deposit of a designated portfolio of securities (including any portion of such securities for which cash may be substituted)) and the Cash Component computed as described below. The funds reserve the right to offer Creation Units of their shares entirely for cash. Together, the Deposit Securities and the Cash Component constitute the "Fund Deposit," which will be applicable (subject to possible amendment or correction) to creation requests received in proper form. The Fund Deposit represents the minimum initial and subsequent investment amount for a Creation Unit of a fund. The "Cash Component" is an amount equal to the difference between the NAV of the shares (per Creation Unit) and the "Deposit Amount," which is an amount equal to the market value of the Deposit Securities, and serves to compensate for any differences between the NAV per Creation Unit and the Deposit Amount. Payment of any stamp duty or other similar fees and expenses payable upon transfer of beneficial ownership of the Deposit Securities are generally the responsibility of the Authorized Participant purchasing the Creation Unit.

The advisor makes available through the NSCC on each Business Day prior to the opening of business on the Listing Exchange, the list of names and the required number of shares of each Deposit Security and the amount of the Cash Component (if any) to be included in the current Fund Deposit (based on information as of the end of the previous Business Day for a fund). Such Fund Deposit is applicable, subject to any adjustments as described below, to purchases of Creation Units of shares of a fund until such time as the next-announced Fund Deposit is made available.

The identity and number of shares of the Deposit Securities and the amount of the Cash Component changes pursuant to changes in the composition of a fund's portfolio and as rebalancing adjustments and corporate action events are reflected from time to time by advisor with a view to the investment goal of the fund. The composition of the Deposit Securities and the amount of the Cash Component may also change in response to adjustments to the weighting or composition of the component securities constituting the fund's portfolio or, where applicable, the fund's underlying index (American Century Quality Diversified International ETF, American Century U.S. Quality Growth ETF, and American Century U.S. Quality Value ETF).

The funds reserve the right to permit or require the substitution of a "cash in lieu" amount to be added to the Cash Component to replace any Deposit Security that may not be available in sufficient quantity for delivery or that may not be eligible for transfer

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through the facilities of DTC (DTC Facilities) or the clearing process through the Continuous Net Settlement System of the NSCC (NSCC Clearing Process), a clearing agency that is registered with the SEC (as discussed below), or that the Authorized Participant is not able to trade due to a trading restriction. Each fund also reserves the right to permit or require a "cash in lieu" amount in certain circumstances.

**Cash Purchase Method**

When partial or full cash purchases of Creation Units are available or specified for the fund, they will be effected in essentially the same manner as in-kind purchases thereof. In the case of a partial or full cash purchase, the Authorized Participant must pay the cash equivalent of the Deposit Securities it would otherwise be required to provide through an in-kind purchase, plus the same Cash Component required to be paid by an in-kind purchaser.

**Creation Units** 

To be eligible to place orders and to create a Creation Unit of the fund, an entity must be: (i) a "Participating Party," *i.e.*, a broker-dealer or other participant in the NSCC Clearing Process, or (ii) a DTC Participant, and, in either case, must have executed an agreement with the distributor with respect to creations and redemptions of Creation Units (Authorized Participant Agreement). A Participating Party or DTC Participant who has executed an Authorized Participant Agreement is referred to as an "Authorized Participant." All shares of a fund, however created, will be entered on the records of DTC in the name of Cede & Co. for the account of a DTC Participant.

**Role of the Authorized Participant** 

Creation Units may be purchased only by or through an Authorized Participant that has entered into an Authorized Participant Agreement with the distributor. Such Authorized Participant will agree, pursuant to the terms of such Authorized Participant Agreement and on behalf of itself or any investor on whose behalf it will act, to certain conditions, including that such Authorized Participant will make available in advance of each purchase of shares an amount of cash sufficient to pay the Cash Component, once the NAV of a Creation Unit is next determined after receipt of the purchase order in proper form, together with the transaction fees described below. Investors who are not Authorized Participants must make appropriate arrangements with an Authorized Participant. Investors should be aware that their particular broker may not be an Authorized Participant or may not have executed an Authorized Participant Agreement and that orders to purchase Creation Units may have to be placed by the investor's broker through an Authorized Participant. As a result, purchase orders placed through an Authorized Participant may result in additional charges to such investor. The trust may not enter into an Authorized Participant Agreement with more than a small number of Authorized Participants.

**Placement of Creation Orders** 

An Authorized Participant must submit an irrevocable order to purchase shares of a fund, in proper form, no later than the closing time of the regular trading session of the Listing Exchange (normally 4 p.m., Eastern time) on any Business Day to receive that day's NAV. On days when the Listing Exchange closes earlier than normal, a fund may require orders for Creation Units to be placed earlier in the day. Orders for Creation Units must be transmitted by an Authorized Participant by telephone or other transmission method acceptable to the transfer agent pursuant to procedures set forth in the Authorized Participant Agreement, as described below. Economic or market disruptions or changes, or telephone or other communication failure, may impede the ability to reach the transfer agent or an Authorized Participant. Orders to create shares of a fund that are submitted on the Business Day immediately preceding a holiday or a day (other than a weekend) when the equity markets in the relevant non-U.S. market are closed may not be accepted. The funds' deadlines specified above for the submission of purchase orders is referred to as the funds' "Cutoff Time." The trust or its designee, in their discretion, may permit the submission of such orders and requests by or through an Authorized Participant at any time (including on days on which the Listing Exchange is not open for business) via communication through the facilities of the transfer agent's proprietary website maintained for this purpose.

Investors, other than Authorized Participants, are responsible for making arrangements for a creation request to be made through an Authorized Participant. Those placing orders to purchase Creation Units through an Authorized Participant should allow sufficient time to permit proper submission of the purchase order to the transfer agent or its agent by the Cutoff Time on such Business Day.

Upon receiving an order for a Creation Unit, the transfer agent will notify the advisor and the custodian of such order. The custodian will then provide such information to any appropriate sub-custodian.

The Authorized Participant must make available on or before the prescribed settlement date, by means satisfactory to a fund, immediately available or same day funds estimated by the fund to be sufficient to pay the Cash Component next determined after acceptance of the purchase order, together with the applicable purchase transaction fees. Those placing orders should ascertain the applicable deadline for cash transfers by contacting the operations department of the broker or depositary institution effectuating the transfer of the Cash Component. This deadline is likely to be significantly earlier than the Cutoff Time of the fund. Investors should be aware that an Authorized Participant may require orders for purchases of shares placed with it to be in the particular form required by the individual Authorized Participant.

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The Authorized Participant is responsible for all transaction-related fees, expenses and other costs (as described below), as well as any applicable cash amounts, in connection with any purchase order.

Once a purchase order has been accepted, it will be processed based on the NAV next determined after such acceptance in accordance with the fund's Cutoff Times as provided in the Authorized Participant Agreement and disclosed in this SAI.

**Acceptance of Orders for Creation Units** 

Subject to the conditions that (i) an irrevocable purchase order has been submitted by the Authorized Participant (either on its own or another investor's behalf) and (ii) arrangements satisfactory to the fund are in place for payment of the Cash Component and any other cash amounts which may be due, an order will be accepted, subject to the fund's right to reject any order until acceptance, as set forth below.

Once a purchase order has been accepted, upon the next determination of the NAV of the shares, a fund will confirm the issuance of a Creation Unit, against receipt of payment, at such NAV. The transfer agent will then transmit a confirmation of acceptance to the Authorized Participant that placed the order.

Each fund reserves the right to reject or revoke a purchase order transmitted to it by the transfer agent if: (i) the purchase order is not in proper form; (ii) the investor(s), upon obtaining the shares ordered, would own 80% or more of the currently outstanding shares of the fund; (iii) the Deposit Securities delivered do not conform to the identity and number of shares specified, as described above; (iv) acceptance of the Fund Deposit would, in the opinion of the fund, be unlawful; or (v) circumstances outside the control of the fund make it impossible to process purchase orders for all practical purposes. The transfer agent shall notify a prospective purchaser of a Creation Unit and/or the Authorized Participant acting on behalf of such purchaser of its rejection of such order. The funds, the funds' custodian, the sub-custodian and the distributor are under no duty, however, to give notification of any defects or irregularities in the delivery of Fund Deposits nor shall any of them incur any liability for failure to give such notification.

**Issuance of a Creation Unit**

Except as provided herein, a Creation Unit will not be issued until the transfer of good title to the fund of the Deposit Securities and the payment of the Cash Component have been completed. When the sub-custodian has confirmed to the custodian that the securities included in the Fund Deposit (or the cash value thereof) have been delivered to the account of the relevant sub-custodian or sub-custodians, the transfer agent and the advisor shall be notified of such delivery and the fund will issue and cause the delivery of the Creation Unit. Typically, Creation Units are issued on a "T+1 basis" (*i.e.*, one Business Day after trade date). However, each fund reserves the right to settle Creation Unit transactions on a basis other than T+1 if necessary or appropriate under the circumstances. Additionally, the American Century Quality Diversified International ETF reserves the right to settle Creation Unit transactions on a basis other than T+1 to accommodate non-U.S. market holiday schedules or to account for different treatment among non-U.S. and U.S. markets of dividend record dates and ex dividend dates.

To the extent contemplated by an Authorized Participant Agreement, the funds will issue Creation Units to an Authorized Participant, notwithstanding the fact that the corresponding Fund Deposits have not been received in part or in whole, in reliance on the undertaking of the Authorized Participant to deliver the missing Deposit Securities as soon as possible, which undertaking shall be secured by such Authorized Participant's delivery and maintenance of collateral having a value at least equal to, and up to 115% of, the value of the missing Deposit Securities in accordance with the fund's then-effective procedures, which percentage the trust may change at any time, in its sole discretion. The only collateral that is acceptable to the funds is cash in U.S. dollars. Such cash collateral must be delivered no later than 1 p.m. Eastern time on the prescribed settlement date or such other time as designated by the funds' custodian. Information concerning the funds' current procedures for collateralization of missing Deposit Securities is available from the transfer agent. The Authorized Participant Agreement will permit the funds to buy the missing Deposit Securities at any time and will subject the Authorized Participant to liability for any shortfall between the cost to a fund of purchasing such securities and the value of the cash collateral including, without limitation, liability for related brokerage, borrowings and other charges.

In certain cases, Authorized Participants may create and redeem Creation Units on the same trade date and in these instances, a fund reserves the right to settle these transactions on a net basis or require a representation from the Authorized Participants that the creation and redemption transactions are for separate beneficial owners. All questions as to the number of shares of each security in the Deposit Securities and the validity, form, eligibility and acceptance for deposit of any securities to be delivered shall be determined by the funds and the funds' determination shall be final and binding.

**Costs Associated with Creation Transactions**

A standard creation transaction fee is imposed to offset the transfer and other transaction costs associated with the issuance of Creation Units. The standard creation transaction fee is charged to the Authorized Participant on the day such Authorized Participant creates a Creation Unit, and is the same, regardless of the number of Creation Units purchased by the Authorized Participant on the applicable Business Day. The Authorized Participant may also be required to cover certain brokerage, tax, foreign exchange, execution, market impact and other costs and expenses related to the execution of trades resulting from such transaction (up to the maximum amount shown below). If the costs of executing the transaction exceed the maximum additional charge, such charges will be paid by the fund.

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Authorized Participants will also bear the costs of transferring the Deposit Securities to a fund. Investors who use the services of a broker or other financial intermediary to acquire fund shares may be charged a fee for such services.

The following table sets forth each fund's standard creation transaction fees and maximum additional charge (as described above). Transaction fees may be waived in certain circumstances deemed appropriate by the trust.

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| | | |
|:---|:---|:---|
| **Fund** | **Standard Creation <br>Transaction Fee** | **Maximum Additional Charge for Creations**<sup>1</sup> |
| American Century California Municipal Bond ETF | $150 | 3% |
| American Century Diversified Corporate Bond ETF | $150 | 3% |
| American Century Diversified Municipal Bond ETF | $150 | 3% |
| American Century Multisector Floating Income ETF | $200 | 3% |
| American Century Multisector Income ETF | $200 | 3% |
| American Century Quality Diversified International ETF | $1650 | 7% |
| American Century Securitized Credit ETF | $[ ] | [ ]% |
| American Century Select High Yield ETF | $150 | 3% |
| American Century Short Duration Strategic Income ETF | $200 | 3% |
| American Century Small Cap Growth Insights ETF | $250 | 3% |
| American Century Small Cap Value Insights ETF | $250 | 3% |
| American Century U.S. Quality Growth ETF | $250 | 3% |
| American Century U.S. Quality Value ETF | $250 | 3% |

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<sup>1</sup> *As a percentage of the NAV per Creation Unit.*

**Redemption of Creation Units** 

Shares of the funds may be redeemed by Authorized Participants only in Creation Units at their NAV next determined after receipt of a redemption request in proper form by the transfer agent and only on a Business Day. The funds will not redeem shares in amounts less than Creation Units. There can be no assurance, however, that there will be sufficient liquidity in the secondary market at any time to permit assembly of a Creation Unit. Investors should expect to incur brokerage and other costs in connection with assembling a sufficient number of shares to constitute a Creation Unit that could be redeemed by an Authorized Participant. Beneficial owners also may sell shares in the secondary market. The funds generally redeem Creation Units for Fund Securities (as defined below) and the Cash Amount (as defined below). Please see the *Cash Redemption Method* section below and the following discussion summarizing the in-kind method for further information on redeeming Creation Units of the funds.

The advisor makes available through the NSCC, prior to the opening of business on the Listing Exchange on each Business Day, the designated portfolio of securities (including any portion of such securities for which cash may be substituted) that will be applicable (subject to possible amendment or correction) to redemption requests received in proper form (as defined below) on that day (Fund Securities), and an amount of cash as described below (Cash Amount) (if any). Such Fund Securities and the corresponding Cash Amount (each subject to possible amendment or correction) are applicable in order to effect redemptions of Creation Units of a fund until such time as the next announced composition of the Fund Securities and Cash Amount is made available. Fund Securities received on redemption may not be identical to Deposit Securities that are applicable to creations of Creation Units under certain circumstances.

Unless cash redemptions are available or specified for the funds, the redemption proceeds for a Creation Unit generally consist of Fund Securities, plus the Cash Amount, which is an amount equal to the difference between the NAV of the shares being redeemed, as next determined after the receipt of a redemption request in proper form, and the value of Fund Securities, less a redemption transaction fee (as described below).

The funds may, in their sole discretion, substitute a "cash in lieu" amount to replace any Fund Security that may not be eligible for transfer through DTC Facilities or the NSCC Clearing Process or that the Authorized Participant is not able to trade due to a trading restriction. The funds also reserve the right to permit or require a "cash in lieu" amount in certain circumstances, including circumstances in which: (i) the delivery of a Fund Security to the Authorized Participant would be restricted under applicable securities or other local laws; (ii) the delivery of a Fund Security to the Authorized Participant would result in the disposition of the Fund Security by the Authorized Participant becoming restricted under applicable securities or other local laws; or (iii) in certain other situations. The amount of cash paid out in such cases will be equivalent to the value of the substituted security listed as a Fund Security. In the event that the Fund Securities have a value greater than the NAV of the shares, a compensating cash payment equal to the difference is required to be made by or through an Authorized Participant by the redeeming shareholder. The funds generally redeem Creation Units for Fund Securities and the Cash Amount, but the funds reserve the right to utilize a cash option for redemption of Creation Units.

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**Cash Redemption Method** 

When partial or full cash redemptions of Creation Units are available or specified for the fund, they will be effected in essentially the same manner as in-kind purchases thereof. In the case of a partial or full cash redemption, the Authorized Participant receives the cash equivalent of the Fund Securities it would otherwise receive through an in-kind redemption, plus the same Cash Amount to be paid to an in-kind redeemer.

**Costs Associated with Redemption Transactions** 

A standard redemption transaction fee is imposed to offset transfer and other transaction costs that may be incurred by the funds. The standard redemption transaction fee is charged to the Authorized Participant on the day such Authorized Participant redeems a Creation Unit, and is the same regardless of the number of Creation Units redeemed by an Authorized Participant on the applicable Business Day. The Authorized Participant may also be required to cover certain brokerage, tax, foreign exchange, execution, market impact and other costs and expenses related to the execution of trades resulting from such transaction (up to the maximum amount shown below). If the costs of executing the transaction exceed the maximum additional charge, such charges will be paid by the fund. Authorized Participants will also bear the costs of transferring the Fund Securities from a fund to their account on their order. Investors who use the services of a broker or other financial intermediary to dispose of fund shares may be charged a fee for such services.

The following table sets forth each fund's standard redemption transaction fees and maximum additional charge (as described above). Transaction fees may be waived in certain circumstances deemed appropriate by the trust.

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| | | |
|:---|:---|:---|
| **Fund** | **Standard Redemption Transaction Fee** | **Maximum Additional Charge for Redemptions**<sup>1</sup> |
| American Century California Municipal Bond ETF | $150 | 2% |
| American Century Diversified Corporate Bond ETF | $150 | 2% |
| American Century Diversified Municipal Bond ETF | $150 | 2% |
| American Century Multisector Floating Income ETF | $200 | 2% |
| American Century Multisector Income ETF | $200 | 2% |
| American Century Quality Diversified International ETF | $1650 | 2% |
| American Century Securitized Credit ETF | $[ ] | [ ]% |
| American Century Select High Yield ETF | $150 | 2% |
| American Century Short Duration Strategic Income ETF | $200 | 2% |
| American Century Small Cap Growth Insights ETF | $250 | 2% |
| American Century Small Cap Value Insights ETF | $250 | 2% |
| American Century U.S. Quality Growth ETF | $250 | 2% |
| American Century U.S. Quality Value ETF | $250 | 2% |

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<sup>1</sup> *As a percentage of the NAV per Creation Unit, inclusive of the standard redemption transaction fee.*

**Placement of Redemption Orders** 

Redemption requests for Creation Units of the funds must be submitted to the transfer agent by or through an Authorized Participant. An Authorized Participant must submit an irrevocable request to redeem shares of a fund, in proper form, no later than the closing of the regular trading session of the Listing Exchange (normally 4 p.m., Eastern time) on any Business Day, in order to receive that day's NAV. On days when the Listing Exchange closes earlier than normal, a fund may require orders to redeem Creation Units to be placed earlier that day. Investors, other than Authorized Participants, are responsible for making arrangements for a redemption request to be made through an Authorized Participant.

The Authorized Participant must transmit the request for redemption in the form required by a fund to the transfer agent in accordance with procedures set forth in the Authorized Participant Agreement. Investors should be aware that their particular broker may not have executed an Authorized Participant Agreement and that, therefore, requests to redeem Creation Units may have to be placed by the investor's broker through an Authorized Participant who has executed an Authorized Participant Agreement. At any time, only a limited number of broker-dealers may have an Authorized Participant Agreement in effect. Investors making a redemption request should be aware that such request must be in the form specified by such Authorized Participant. Investors making a request to redeem Creation Units should allow sufficient time to permit proper submission of the request by an Authorized Participant and transfer of the shares to a fund's transfer agent; such investors should allow for the additional time that may be required to effect redemptions through their banks, brokers or other financial intermediaries if such intermediaries are not Authorized Participants.

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A redemption request is considered to be in "proper form" if: (i) an Authorized Participant has transferred or caused to be transferred to a fund's transfer agent the Creation Unit redeemed through the book-entry system of DTC so as to be effective by the Listing Exchange closing time on any Business Day; (ii) a request in form satisfactory to the fund is received by the transfer agent from the Authorized Participant on behalf of itself or another redeeming investor within the time periods specified above; and (iii) all other procedures set forth in the Authorized Participant Agreement are properly followed. The trust reserves the right in connection with a redemption request to verify that the Authorized Participant owns the shares subject to the redemption at the close of business on the date of the redemption order. If the Authorized Participant, upon receipt of this request, does not provide sufficient information to the trust, the redemption request will not be considered to have been received in proper form and may be rejected. If the transfer agent does not receive the investor's shares through DTC Facilities by 10 a.m. Eastern time on the prescribed settlement date, the redemption request may be deemed rejected. Investors should be aware that the deadline for such transfers of shares through the DTC Facilities may be significantly earlier than the close of business on the Listing Exchange. Those making redemption requests should ascertain the deadline applicable to transfers of shares through the DTC Facilities by contacting the operations department of the broker or depositary institution effecting the transfer of the shares.

Upon receiving a redemption request, the transfer agent shall notify the fund and the fund's transfer agent of such redemption request. The tender of an investor's shares for redemption and the distribution of the securities and/or cash included in the redemption payment made in respect of Creation Units redeemed will be made through DTC and the relevant Authorized Participant to the Beneficial Owner thereof as recorded on the book-entry system of DTC or the DTC Participant through which such investor holds, as the case may be, or by such other means specified by the Authorized Participant submitting the redemption request.

A redeeming Beneficial Owner or Authorized Participant acting on behalf of such Beneficial Owner must maintain appropriate security arrangements with a qualified broker-dealer, bank or other custody providers in each jurisdiction in which any of the portfolio securities are customarily traded, to which account such portfolio securities will be delivered.

Deliveries of redemption proceeds by a fund generally will be made within one Business Day (*i.e.*, "T+1"). Each fund reserves the right to settle redemption transactions later than T+1 if necessary or appropriate under the circumstances and compliant with applicable law. Delayed settlement may occur due to a number of different reasons, including, without limitation, settlement cycles for the underlying securities, unscheduled market closings, an effort to link distribution to dividend record dates and ex-dates and newly announced holidays. For example, the redemption settlement process may be extended beyond T+1 because of the occurrence of a holiday in a non-U.S. market or in the U.S. bond market that is not a holiday observed in the U.S. equity market. Additionally, the American Century Quality Diversified International ETF reserves the right to settle redemption transactions on a basis other than T+1 to accommodate non-U.S. market holiday schedules or to account for different treatment among non-U.S. and U.S. markets of dividend record dates and ex dividend dates.

If neither the redeeming Beneficial Owner nor the Authorized Participant acting on behalf of such redeeming Beneficial Owner has appropriate arrangements to take delivery of Fund Securities in the applicable non-U.S. jurisdiction and it is not possible to make other such arrangements, or if it is not possible to effect deliveries of Fund Securities in such jurisdiction, the fund may in its discretion exercise its option to redeem such shares in cash, and the redeeming Beneficial Owner will be required to receive its redemption proceeds in cash. In such case, the investor will receive a cash payment equal to the NAV of its shares based on the NAV of the fund next determined after the redemption request is received in proper form (minus a redemption transaction fee and additional charges specified above, to offset the fund's brokerage and other transaction costs associated with the disposition of Fund Securities). Redemptions of shares for Fund Securities will be subject to compliance with applicable U.S. federal and state securities laws and the fund (whether or not it otherwise permits cash redemptions) reserves the right to redeem Creation Units for cash to the extent that the fund cannot lawfully deliver specific Fund Securities upon redemptions or cannot do so without first registering the Fund Securities under such laws.

In the event that cash redemptions are permitted or required by the trust, proceeds will be paid to the Authorized Participant redeeming shares as soon as practicable after the date of redemption (within seven calendar days thereafter).

To the extent contemplated by an Authorized Participant Agreement, in the event an Authorized Participant has submitted a redemption request in proper form but is unable to transfer all or part of the Creation Unit to be redeemed to a fund, at or prior to 10 a.m. Eastern time, on the prescribed settlement date, the transfer agent may accept the redemption request in reliance on the undertaking by the Authorized Participant to deliver the missing shares as soon as possible. Such undertaking shall be secured by the Authorized Participant's delivery and maintenance of collateral consisting of cash, in U.S. dollars in immediately available funds, having a value at least equal to, and up to 115% of, the value of the remaining shares, which percentage the trust may change at any time, in its sole discretion. Such cash collateral must be delivered at such time as designated by the custodian, but no later than 10 a.m. Eastern time, on the prescribed settlement date and shall be held by the fund's custodian and marked-to-market daily. The fees of the fund's custodian and any sub-custodians in respect of the delivery, maintenance and redelivery of the cash collateral shall be payable by the Authorized Participant. The Authorized Participant Agreement may permit a fund to purchase missing fund shares or acquire the Deposit Securities and the Cash Amount underlying such shares, and will subject the Authorized Participant to liability for any shortfall between the cost of the fund acquiring such shares, the Deposit Securities or Cash Amount and the value of the cash collateral including, without limitation, liability for related brokerage and other charges.

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Because the portfolio securities of a fund may trade on exchange(s) on days that the Listing Exchange is closed or are otherwise not Business Days for the fund, shareholders may not be able to redeem their shares of the fund, or purchase or sell shares of the fund on the Listing Exchange on days when the NAV of the fund could be significantly affected by events in the relevant non-U.S. markets.

The right of redemption may be suspended or the date of payment postponed with respect to a fund: (i) for any period during which the Listing Exchange is closed (other than customary weekend and holiday closings); (ii) for any period during which trading on the Listing Exchange is restricted; (iii) for any period during which an emergency exists as a result of which disposal of the shares of the fund's portfolio securities or determination of its NAV is not reasonably practicable; or (iv) in such other circumstances as is permitted by the SEC.

**Service Providers**

The funds have no employees. To conduct the funds' day-to-day activities, the trust has hired a number of service providers. Each service provider has a specific function to fill on behalf of the funds that is described below.

ACIM and ACS are wholly owned, directly or indirectly, by ACC. The Stowers Institute for Medical Research (SIMR) controls ACC by virtue of its beneficial ownership of more than 25% of the voting securities of ACC. SIMR is part of a not-for-profit biomedical research organization dedicated to finding the keys to the causes, treatments and prevention of disease.

**Investment Advisor**

ACIM serves as the investment advisor for each of the funds. A description of the responsibilities of the advisor appears in each prospectus under the heading *Management*.

For services provided to each fund, the advisor receives a unified management fee based on a percentage of the daily net assets of each fund. For more information about the unified management fee, see *The Investment Advisor* under the heading *Management* in each fund's prospectus. The amount of the fee is calculated daily and paid monthly in arrears. The management fee schedules for the funds appear below.

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| | |
|:---|:---|
| *Fund* | *Management Fee Rate Before Waiver* |
| American Century California Municipal Bond ETF | 0.27% |
| American Century Diversified Corporate Bond ETF | 0.29% |
| American Century Diversified Municipal Bond ETF | 0.29% |
| American Century Multisector Floating Income ETF | 0.27% |
| American Century Multisector Income ETF | 0.35% |
| American Century Quality Diversified International ETF | 0.39% |
| American Century Securitized Credit ETF | [ ]% |
| American Century Select High Yield ETF | 0.45% |
| American Century Short Duration Strategic Income ETF | 0.32% |
| American Century Small Cap Growth Insights ETF | 0.49% |
| American Century Small Cap Value Insights ETF  | 0.49% |
| American Century U.S. Quality Growth ETF | 0.29% |
| American Century U.S. Quality Value ETF | 0.29% |

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On each calendar day, each fund accrues a management fee that is equal to the fund's management fee rate (as calculated pursuant to the above schedules) times the net assets of the fund divided by 365 (366 in leap years). On the first business day of each month, the funds pay a management fee to the advisor for the previous month. The management fee is the sum of the daily fee calculations for each day of the previous month.

The management agreement between the trust and the advisor shall continue in effect for a period of two years from its effective date (unless sooner terminated in accordance with its terms) and shall continue in effect from year to year thereafter for each fund so long as such continuance is approved at least annually by:

(1)either the funds' Board of Trustees, or a majority of the outstanding voting securities of such fund (as defined in the Investment Company Act); and

(2)the vote of a majority of the trustees of the funds who are not parties to the agreement or interested persons of the advisor, cast in person at a meeting called for the purpose of voting on such approval.

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The management agreement states that the funds' Board of Trustees or a majority of the outstanding voting securities of each fund may terminate the management agreement at any time without payment of any penalty on 60 days' written notice to the advisor. The management agreement shall be automatically terminated if it is assigned.

The management agreement states that the advisor shall not be liable to the funds or their shareholders for anything other than willful misfeasance, bad faith, gross negligence or reckless disregard of its obligations and duties.

The management agreement also provides that the advisor and its officers, trustees and employees may engage in other business, render services to others, and devote time and attention to any other business, whether of a similar or dissimilar nature.

Certain investments may be appropriate for the funds and also for other clients advised by the advisor. Investment decisions for the funds and other clients are made with a view to achieving their respective investment objectives after consideration of such factors as their current holdings, availability of cash for investment and the size of their investment generally. A particular security may be bought or sold for only one client or fund, or in different amounts and at different times for more than one but less than all clients or funds. A particular security may be bought for one client or fund on the same day it is sold for another client or fund, and a client or fund may hold a short position in a particular security at the same time another client or fund holds a long position. In addition, purchases or sales of the same security may be made for two or more clients or funds on the same date. The advisor has adopted procedures designed to ensure such transactions will be allocated among clients and funds in a manner believed by the advisor to be equitable to each. In some cases this procedure could have an adverse effect on the price or amount of the securities purchased or sold by a fund.

The advisor may aggregate purchase and sale orders of the funds with purchase and sale orders of its other clients when the advisor believes that such aggregation provides the best execution for the funds. The Board of Trustees has approved the policy of the advisor with respect to the aggregation of portfolio transactions. To the extent equity trades are aggregated, shares purchased or sold are generally allocated to the participating portfolios *pro rata* based on order size. The advisor will not aggregate portfolio transactions of the funds unless it believes such aggregation is consistent with its duty to seek best execution on behalf of the funds and the terms of the management agreement. The advisor receives no additional compensation or remuneration as a result of such aggregation.

Unified management fees incurred by each fund for the fiscal period ended August 31, 2025, 2024 and 2023 are indicated in the following table. As new funds, American Century Securitized Credit ETF, American Century Small Cap Growth Insights ETF and American Century Small Cap Value Insights ETF are not included in the table below.

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| | | | |
|:---|:---|:---|:---|
| **Unified Management Fees** | | | |
| *Fund* | *2025* | *2024* | *2023* |
| American Century California Municipal Bond ETF | $90961 | $6552² | N/A |
| American Century Diversified Corporate Bond ETF | $1228503 | $690729 | $537806 |
| American Century Diversified Municipal Bond ETF | $1443082¹ | $1168657 | $827418 |
| American Century Multisector Floating Income ETF | $148964 | $79367 | $25312³ |
| American Century Multisector Income ETF | $640320 | $633521 | $493246 |
| American Century Quality Diversified International ETF | $1088699 | $857536 | $799837 |
| American Century Select High Yield ETF | $160417 | $148680 | $128429 |
| American Century Short Duration Strategic Income ETF | $235378 | $121864 | $88574⁴ |
| American Century U.S. Quality Growth ETF | $3748991 | $2332342 | $1116532 |
| American Century U.S. Quality Value ETF | $705727 | $620921 | $602768 |

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<sup>1</sup> *Amount shown reflects waiver by advisor of $8,271 in management fees.*

<sup>2</sup> *For the period July 16, 2024, the fund's inception date, through August 31, 2024.*

<sup>3</sup> *For the period March 14, 2023, the fund's inception date, through August 31, 2023.*

<sup>4</sup> *For the period October 11, 2022, the fund's inception date, through August 31, 2023.*

**Subadvisor**

**American Century Select High Yield ETF**

The management agreement between American Century Select High Yield ETF and the advisor provides that the advisor may delegate certain responsibilities under the agreement to subadvisors. Additional information about subadvisory arrangements is provided below.

**Nomura Corporate Research and Asset Management Inc. (NCRAM)**

The advisor has engaged NCRAM to serve as a subadvisor for American Century Select High Yield ETF. NCRAM is considered an affiliate of American Century Select High Yield ETF solely because its serves as a subadvisor to the fund. NCRAM is a Delaware

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corporation. It is 99% owned by Nomura Holding America Inc. Nomura Holdings, Inc. (Nomura), the ultimate parent company located in Tokyo, Japan, owns the remaining 1%. Nomura and its broker-dealer, banking, and other financial services subsidiaries provide investment, financing and related services to individual, institutional and government clients on a global basis. Nomura indirectly owns a non-controlling equity interest in ACIM's parent entity, American Century Companies, Inc. (ACC).

The subadvisory agreement with NCRAM provides that NCRAM will make investment recommendations for the fund by delivering a model portfolio together with portfolio parameters to the advisor in accordance with such fund's objectives, registration statement, policies, restrictions and whatever additional written guidelines it may receive from the advisor from time to time. For these services, the advisor (not the fund) pays NCRAM a subadvisory fee based on the fund's average daily net assets.

**Portfolio Managers**

**Accounts Managed**

The portfolio managers are responsible for the day-to-day management of various accounts, as indicated by the following table. None of these accounts has an advisory fee based on the performance of the account. As new funds, American Century Securitized Credit ETF, American Century Small Cap Growth Insights ETF and American Century Small Cap Value Insights ETF are not included in the table below.

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| | | | | |
|:---|:---|:---|:---|:---|
| **Accounts Managed (As of August 31, 2025)** | **Accounts Managed (As of August 31, 2025)** | **Accounts Managed (As of August 31, 2025)** | **Accounts Managed (As of August 31, 2025)** | **Accounts Managed (As of August 31, 2025)** |
|  |  | *Registered Investment<br>Companies (e.g.,<br>American Century<br>Investments funds<br>and American<br>Century Investments -<br>subadvised funds)* | *Other Pooled<br>Investment<br>Vehicles (e.g.,<br>commingled<br>trusts and 529<br>education<br>savings plans)* | *Other Accounts<br>(e.g., separate<br>accounts and<br>corporate accounts<br>including incubation<br>strategies and<br>corporate money)* |
| Will Enderle | Number of Accounts | 6 | 0 | 0 |
|  | Assets | $2.8 billion<sup>1</sup> | $0 | $0 |
| Gavin Fleischman | Number of Accounts | 5 | 0 | 0 |
|  | Assets | $1.7 billion<sup>2</sup> | $0 | $0 |
| Joseph Gotelli | Number of Accounts | 6 | 1 | 2 |
|  | Assets | $8.3 billion<sup>3</sup> | $34.7 million | $532.6 thousand |
| Jason Greenblath | Number of Accounts | 13 | 0 | 0 |
|  | Assets | $14.0 billion<sup>4</sup> | $0 | $0 |
| Alan Kruss | Number of Accounts | 6 | 1 | 2 |
|  | Assets | $8.3 billion<sup>3</sup> | $34.7 million | $532.6 thousand |
| Paul Norris | Number of Accounts | 14 | 0 | 11 |
|  | Assets | $14.0 billion<sup>5</sup> | $0 | $195.6 million |
| Stephen Quance | Number of Accounts | 13 | 0 | 0 |
|  | Assets | $10.4 billion<sup>6</sup> | $0 | $0 |
| Charles Tan | Number of Accounts | 13 | 0 | 5 |
|  | Assets | $13.5 billion<sup>4</sup> | $0 | $1.4 billion |

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<sup>1&nbsp;&nbsp;&nbsp;&nbsp;</sup>*Includes $400.4 million in American Century Quality Diversified International ETF; $46.7 million in American Century Select High Yield ETF; $2.0 billion in American Century U.S. Quality Growth ETF; and $283.1 million in American Century U.S. Quality Value ETF.*

<sup>2&nbsp;&nbsp;&nbsp;&nbsp;</sup>*Includes $566.1 million in American Century Diversified Corporate Bond ETF.*

<sup>3&nbsp;&nbsp;&nbsp;&nbsp;</sup>*Includes $51.1 million in American Century California Municipal Bond ETF; and $488.2 million in American Century Diversified Municipal Bond ETF.*

<sup>4&nbsp;&nbsp;&nbsp;&nbsp;</sup>*Includes $566.1 million in American Century Diversified Corporate Bond ETF; $50.7 million in American Century Multisector Floating Income ETF; $175.1 million in American Century Multisector Income ETF; and $85.2 million in American Century Short Duration Strategic Income ETF.*

<sup>5&nbsp;&nbsp;&nbsp;&nbsp;</sup>*Includes $50.7 million in American Century Multisector Floating Income ETF; $175.1 million in American Century Multisector Income ETF; and $85.2 million in American Century Short Duration Strategic Income ETF.*

<sup>6&nbsp;&nbsp;&nbsp;&nbsp;</sup>*Includes $400.4 million in American Century Quality Diversified International ETF; $2.0 billion in American Century U.S. Quality Growth ETF; and $283.1 million in American Century U.S. Quality Value ETF.*

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**Potential Conflicts of Interest**

Certain conflicts of interest may arise in connection with American Century Investments' management of client portfolios with different investment strategies. Potential conflicts can include, for example, one investment strategy buying or selling a security while another has a different, potentially opposite, position in the same security. This may include one investment strategy taking a short position in the security of an issuer that is held long in another investment strategy (or vice versa). Other potential conflicts may arise with respect to the allocation of investment opportunities across client portfolios, which are discussed in more detail below. American Century Investments has adopted policies and procedures that are designed to minimize the effects of these conflicts.

Management of American Century Investments' client portfolios is organized according to investment discipline and investment strategy. Investment disciplines include, for example, Disciplined Equity, Global Growth Equity (both U.S. and Global/Non-U.S.), Global Value Equity, Global Fixed Income, Multi-Asset Strategies, American Century Rules-Based ETF strategies, Avantis Investors strategies, and Private Investments. Within each investment discipline are one or more portfolio teams responsible for managing specific investment strategies, such as U.S. Disciplined Core Value, U.S. Small Cap Value, U.S. Large Cap Growth, Emerging Markets Equity and U.S. Core Fixed Income. In some cases, a portfolio manager or team may be responsible for managing (or assisting in managing) multiple investment strategies within or across investment disciplines. Generally, client portfolios with similar investment strategies are managed by the same portfolio management team using similar investment objectives, approaches and philosophies. Accordingly, portfolio holdings, position sizes, and industry and sector exposures tend to be similar across client portfolios with similar investment strategies, which minimizes the potential for conflicts of interest. In addition, American Century Investments maintains information barriers that restrict portfolio management teams within an investment discipline from having access to information regarding security positions, orders or transactions in client portfolios or investment strategies in other investment disciplines. If a portfolio manager or team manages or assists in managing an investment strategy in another investment discipline, that portfolio manager or team will only have access to information relating to that investment strategy and not other investment strategies within that investment discipline. The information barriers are intended to aid in preventing the misuse of portfolio holdings information or trading activity in other investment disciplines. Portfolio managers or teams that manage (or assist in managing) investment strategies across investment disciplines will not allow their access to portfolio holdings and/or trading information in one investment discipline to in any way impact decisions they make for client portfolios in other investment disciplines.

For each investment strategy, one portfolio is generally designated as the "policy portfolio." Other portfolios with similar investment objectives, guidelines and restrictions, if any, are referred to as "tracking portfolios." When managing policy and tracking portfolios, a portfolio team typically purchases and sells securities across all portfolios that the team manages. American Century Investments' trading systems include various order entry programs that assist in the management of multiple portfolios, such as the ability to purchase or sell the same relative amount of one security across several funds. In some cases a tracking portfolio may have additional restrictions or limitations that cause it to be managed separately from the policy portfolio. Portfolio managers make purchase and sale decisions for such portfolios alongside the policy portfolio to the extent the overlap is appropriate, and separately, if the overlap is not.

American Century Investments may aggregate orders to purchase or sell the same security for multiple portfolios when it believes such aggregation is consistent with its duty to seek best execution on behalf of its clients. American Century does not aggregate orders where aggregation is not appropriate or practicable from its operational or other perspectives. For example, limit orders, orders for the same security with different priority codes, cash flows, separate trading desks, or portfolio management processes may, among other factors, result in separate, non-aggregated trades. In addition, orders of certain client portfolios may, by investment restriction or otherwise, be determined not to be available for aggregation. American Century Investments has adopted policies and procedures to minimize the risk that a client portfolio could be systematically advantaged or disadvantaged in connection with the aggregation of orders.

American Century Investments generally allocates securities purchased or sold in an aggregated transaction among participating client accounts *pro rata* based on order size. In certain situations, however, a *pro rata* allocation of the securities or proceeds may not be possible or desirable. In these cases, American Century Investments will decide how to allocate the securities or proceeds according to each account's particular circumstances and needs and in a manner that American Century Investments believes is fair and equitable to clients over time in light of factors based on a good faith assessment of the investment opportunity relative to the objectives, limitations, and requirements of each eligible client account. Relevant factors may include, without limitation, client-specific considerations, rebalancing needs, and minimum denomination of increments and round lot considerations. In addition, if American Century Investments is unable to execute fully an aggregated transaction and determines that it would be impractical to allocate a small number of securities on a *pro rata* basis among the participating accounts, American Century Investments allocates the securities in a manner it determines to be fair to all accounts over time. Thus, in some cases it is possible that the application of the factors described herein may result in allocations in which certain client accounts participating in an aggregated transaction may receive an allocation when other accounts do not.

Because initial public offerings (IPOs) are usually available in limited supply and in amounts too small to permit across-the-board *pro rata* allocations, American Century Investments has adopted special procedures designed to promote a fair and equitable allocation of IPO securities among clients over time.

The advisor monitors all trading activity for best execution and to make sure no set of clients is being systematically disadvantaged.

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Finally, investment of American Century Investments' corporate assets in proprietary accounts may raise additional conflicts of interest. To mitigate these potential conflicts of interest, American Century Investments has adopted policies and procedures intended to provide that trading in proprietary accounts is performed in a manner that does not give improper advantage to American Century Investments to the detriment of client portfolios.

For American Century Quality Diversified International ETF, American Century U.S. Quality Growth ETF and American Century U.S. Quality Value ETF, ACIM serves as both the Investment Advisor and the Index Provider. These dual roles may give rise to potential conflicts of interest, such as the potential use of non-public information about the index and index changes to benefit the Advisor, other similarly-managed Advisor accounts, or third parties. In addition to the conflict mitigation policies described above, ACIM has procedures designed to prevent the misuse of material non-public information by the Investment Advisor. Such conflicts may also be mitigated by protections provided by the Investment Company Act and the Investment Advisers Act of 1940, as amended, as well as the fund 's policy to maintain full portfolio transparency.

**Compensation**

American Century Investments portfolio manager compensation is structured to align the interests of portfolio managers with those of the shareholders whose assets they manage. As of the funds' most recent fiscal year end, it includes the components described below, each of which is determined with reference to a number of factors such as overall performance, market competition, and internal equity.

***Base Salary***

Portfolio managers receive base pay in the form of a fixed annual salary.

***Bonus***

A significant portion of portfolio manager compensation takes the form of an annual incentive bonus which is determined by a combination of factors. One factor is investment performance. The mutual funds' investment performance is generally measured by a combination of one-, three- and five-year pre-tax performance relative to various benchmarks and/or internally customized peer groups, such as those indicated below. The performance comparison periods may be adjusted based on a fund's inception date or a portfolio manager's tenure on the fund.

Portfolio managers may have responsibility for multiple American Century Investments mutual funds. In such cases, the performance of each is assigned a percentage weight appropriate for the portfolio manager's relative levels of responsibility. Portfolio managers also may have responsibility for other types of managed portfolios or ETFs. If the performance of a managed account or ETF is considered for purposes of compensation, it is generally measured via the same criteria as an American Century Investments mutual fund (*i.e.*, relative to the performance of a benchmark and/or peer group, as indicated below).

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| | |
|:---|:---|
| *Fund* | *Benchmark* |
| American Century California Municipal Bond ETF | S&P California AMT-Free Municipal Bond Index<sup>®</sup> |
| American Century Diversified Corporate Bond ETF | Bloomberg U.S. Corporate Bond Index |
| American Century Diversified Municipal Bond ETF | S&P National AMT-Free Municipal Bond Index<sup>®</sup> |
| American Century Multisector Floating Income ETF | Bloomberg U.S. 1-3 Month Treasury Bill Index |
| American Century Multisector Income ETF | Bloomberg U.S. Aggregate Bond Index |

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A second factor in the bonus calculation relates to the performance of a number of American Century Investments mutual funds managed according to one of the following investment disciplines: global growth equity, global value equity, disciplined equity, global fixed-income, and multi-asset strategies. The performance of American Century ETFs may also be included for certain investment disciplines. Performance is measured for each product individually as described above and then combined to create an overall composite for the product group. These composites may measure one-year performance (equal weighted) or a combination of one-, three- and five-year performance (equal or asset weighted) depending on the portfolio manager's responsibilities and products managed, and the composite for certain portfolio managers may include multiple disciplines. This feature is designed to encourage effective teamwork among portfolio management teams in achieving long-term investment success for similarly styled portfolios.

A portion of the portfolio managers' bonuses may be discretionary and may be tied to factors such as management of ETFs, profitability or individual performance goals, such as research projects and/or the development of new products.

***Restricted Stock Plans***

Portfolio managers are eligible for grants of restricted stock of ACC. These grants are discretionary, and eligibility and availability can vary from year to year. The size of an individual's grant is determined by individual and product performance as well as other product-specific considerations such as profitability. Grants can appreciate/depreciate in value based on the performance of the ACC stock during the restriction period (generally three to four years).

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***Deferred Compensation Plans***

Portfolio managers are eligible for grants of deferred compensation. These grants are used in very limited situations, primarily for retention purposes. Grants are fixed and can appreciate/depreciate in value based on the performance of the American Century Investments funds in which the portfolio manager chooses to invest them.

**Ownership of Securities**

The following table indicates the dollar range of securities of each fund beneficially owned by the fund's portfolio managers as of August 31, 2025, the fund's most recent fiscal year end. As new funds, American Century Securitized Credit ETF, American Century Small Cap Growth Insights ETF and American Century Small Cap Value Insights ETF are not included in the table below.

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| | |
|:---|:---|
| **Ownership of Securities** | |
| | *Aggregate Dollar Range of Securities in Fund* |
| **American Century California Municipal Bond ETF** | |
| Joseph Gotelli | C |
| Alan Kruss | A |
| **American Century Diversified Corporate Bond ETF** | |
| Gavin Fleischman | A |
| Jason Greenblath | C |
| Charles Tan | A |
| **American Century Diversified Municipal Bond ETF** | |
| Joseph Gotelli | A |
| Alan Kruss | A |
| **American Century Multisector Floating Income ETF** | |
| Jason Greenblath | A |
| Paul Norris | D |
| Charles Tan | A |
| **American Century Multisector Income ETF** | |
| Jason Greenblath | C |
| Paul Norris | A |
| Charles Tan | C |
| **American Century Quality Diversified International ETF** | |
| Will Enderle | C |
| Stephen Quance | C |
| **American Century Select High Yield ETF** | |
| Will Enderle | A |
| **American Century Short Duration Strategic Income ETF** | |
| Jason Greenblath | E |
| Paul Norris | E |
| Charles Tan | A |
| **American Century U.S. Quality Growth ETF** | |
| Will Enderle | C |
| Stephen Quance | C |
| **American Century U.S. Quality Value ETF** | |
| Will Enderle | C |
| Stephen Quance | C |

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*Ranges: A – none; B – $1-$10,000; C – $10,001-$50,000; D – $50,001-$100,000; E – $100,001-$500,000; F – $500,001-$1,000,000; G – More than $1,000,000.*

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**American Century Select High Yield ETF**

The information under this heading has been provided by NCRAM, the subadvisor to American Century Select High Yield ETF with respect to the NCRAM portfolio managers who manage the fund.

**Accounts Managed**

The individuals named as portfolio managers in the prospectus were also jointly primarily responsible for the day-to-day management of various portfolios and/or accounts in addition to American Century Select High Yield ETF, as indicated in the table below.

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| | | | | |
|:---|:---|:---|:---|:---|
| **Accounts Managed (As of August 31, 2025)** | **Accounts Managed (As of August 31, 2025)** | **Accounts Managed (As of August 31, 2025)** | **Accounts Managed (As of August 31, 2025)** | **Accounts Managed (As of August 31, 2025)** |
|  |  | Registered Investment<br>Companies | Other Pooled<br>Investment Vehicles | Other Accounts |
| David Crall | Number of Accounts | 3 | 0 | 0 |
|  | Assets | $2.2 billion | $0 | $0 |
| Amy Yu Chang | Number of Accounts | 2 | 2 | 9¹ |
|  | Assets | $2.0 billion | $1.8 billion | $2.4 billion |
| Stephen Kotsen | Number of Accounts | 4 | 8 | 32² |
|  | Assets | $2.3 billion | $7.4 billion | $22.2 billion |
| Derek Leung | Number of Accounts | 2 | 10 | 0 |
|  | Assets | $2.0 billion | $1.3 billion | $0 |

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<sup>1</sup> *Includes 1 account with assets under management of $534.4 million that are subject to performance-based advisory fees.*

<sup>2</sup> *Includes 4 accounts with assets under management of $2.3 billion that are subject to performance-based advisory fees.*

**Potential Conflicts of Interest**

NCRAM, in addition to providing a model portfolio to ACIM, manages a number of other client accounts. Although investment determinations for the model portfolio will be made independently from the investment determinations made by NCRAM for any other account, investments deemed appropriate for the model portfolio may also be deemed appropriate for other accounts. Therefore, the same security may be purchased or sold by NCRAM for other accounts at or about the same time as the model portfolio is provided by NCRAM to the advisor. In addition, NCRAM may have already traded for other clients before the advisor using the model portfolio has received or has had the opportunity to evaluate or act on the model portfolio. The advisor's trades ultimately placed for American Century Select High Yield ETF may be affected at different prices, and may result in receiving prices that are less favorable than the prices NCRAM obtained for its client accounts. NCRAM is not able to control the advisor's trading and cannot control the market impact of these trades as it could for its own client accounts.

**Compensation**

Compensation within NCRAM consists of a fixed amount which includes base salary and benefits together with a variable performance-related amount. The CEO will determine the bonus for investment professionals, consulting with the PMs with the regard to the analysts. The variable performance-related remuneration is based upon an individual's performance as compared to agreed objectives which may include financial and non-financial performance measures, risk management, and other relevant factors. Determination of variable performance-related compensation is sufficiently flexible to reward short- and long-term individual performance.

When an employee's total compensation (fixed plus variable remuneration) exceeds certain limits, the employee must participate in the Nomura Holdings, Inc. remuneration deferral scheme which links the employee's deferred compensation award to the performance of NHI shares. Also, in the case of certain portfolio managers, a portion of their deferred compensation may be linked to the performance of certain strategies managed by NCRAM, and we believe this further ties portfolio managers to the long-term performance of NCRAM's clients. Therefore, total compensation may consist of three elements: base salary, cash bonus and deferred bonus (via deferral vehicles, typically vesting over three years and linked to various instruments as described above).

**Ownership of Securities**

The following table indicates the dollar range of securities of each fund beneficially owned by the fund's portfolio managers as of August 31, 2025, the fund's most recent fiscal year end.

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| | |
|:---|:---|
| **Ownership of Securities** | |
| | *Aggregate Dollar Range of Securities in Fund* |
| **American Century Select High Yield ETF** | |
| David Crall | A |
| Amy Yu Chang | A |
| Stephen Kotsen | A |
| Derek Leung | A |

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*Ranges: A – none; B – $1-$10,000; C – $10,001-$50,000; D – $50,001-$100,000; E – $100,001-$500,000; F – $500,001-$1,000,000; G – More than $1,000,000.*

**Transfer Agent**

State Street Bank and Trust Company, a Massachusetts trust company (the transfer agent), 1 Heritage Drive, North Quincy, Massachusetts 02171, serves as transfer agent and dividend-paying agent for the funds under a Transfer Agency and Service Agreement with the funds. The transfer agent has undertaken to perform some or all of the following services: (i) perform and facilitate the performance of purchases and redemptions of creation units; (ii) prepare and transmit payments for dividends and distributions; (iii) record the issuance of shares and maintain records of the number of authorized shares; (iv) prepare and transmit information regarding purchases and redemptions of shares; (v) maintain required books and records; and (vi) perform other customary services of a transfer agent and dividend disbursing agent for an exchange-traded fund. Under its investment management agreement, the advisor has contractually assumed the funds' obligation to pay the expenses of the transfer agent. For a description of this fee and the terms of its payment, see the above discussion under the caption *Investment Advisor* on page 49.

**Administrator**

American Century Services, LLC (ACS), 4500 Main Street, Kansas City, Missouri 64111, serves as fund administrator for the funds. The administrator has undertaken to perform some or all of the following services: (i) providing office facilities and furnishing corporate officers for the trust; (ii) monitoring compliance with federal tax and securities law; (iii) performing certain functions ordinarily performed by the office of a corporate treasurer, and furnishing the services and facilities ordinarily incident thereto, such as expense accrual, monitoring and payment of the trust's bills, preparing monthly reconciliation of the of the trust's expense records, updating projections of annual expenses, preparing material for review by the Board of Trustees and compliance testing; (iv) maintaining the trust's books and records in accordance with applicable statutes, rules and regulations; (vi) preparing post-effective amendments to the Trust's registration statement; and (ix) preparing and filing the trust's federal and state tax returns (other than those required to be filed by the trust's custodian and transfer agent) and providing shareholder tax information to the trust's transfer agent. The advisor has contractually assumed the funds' obligation to pay the expenses of the administrator. For a description of this fee and the terms of its payment, see the above discussion under the caption *Investment Advisor* on page 49.

**Sub-Administrator**

The advisor has entered into an Administration Agreement with State Street Bank and Trust Company (the sub-administrator) to provide certain fund accounting, fund financial reporting, tax and treasury/tax compliance services for the funds, including striking the daily NAV for each fund. The advisor pays the sub-administrator a monthly fee as compensation for these services that is based on the total net assets of accounts in the American Century complex serviced by the sub-administrator. ACS does pay the sub-administrator for some additional services on a per fund basis.

**Distributor**

Foreside Fund Services, LLC (the distributor) is the distributor (also known as principal underwriter) of the shares of the funds and is located at Three Canal Plaza, Suite 100, Portland, Maine 04101. The distributor is a registered broker-dealer and is a member of the Financial Industry Regulatory Authority, Inc. (FINRA). The distributor is not affiliated with the advisor or its affiliates.

Shares are continuously offered for sale by the funds through the distributor only in Creation Units as described in each fund's prospectus and above in *Creation and Redemption of Creation Units*. Fund shares in amounts less than Creation Units are generally not distributed by the distributor. The distributor will arrange for the delivery of the prospectus and, upon request, this SAI to Authorized Participants that have entered into an Authorized Participation Agreement with the distributor.

The advisor pays the distributor a fee for serving as principal underwriter of the funds' shares out of the advisor's unified management fee. For a description of this fee and the terms of its payment, see the above discussion under the caption *Investment Advisor* on page 49. The distributor does not earn commissions for distributing the funds' shares.

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Certain financial intermediaries unaffiliated with the distributor or the funds may perform various administrative and shareholder services for their clients who are invested in the funds. These services may include assisting with fund purchases and redemptions, distributing information about the funds and their performance, preparing and distributing client account statements, and other administrative and shareholder services.

**Distribution and Service (12b-1) Fees** 

The board has adopted a plan pursuant to Rule 12b-1 for the funds. However, no Rule 12b-1 plan fee is currently charged to the funds, and there are no plans in place to impose a Rule 12b-1 plan fee. The plan, if implemented, is designed to benefit each fund and its shareholders. The plan is expected to, among other things, increase advertising of the funds, encourage purchases of fund shares and service to its shareholders, and increase or maintain assets of the funds so that certain fixed expenses may be spread over a broader asset base, with a positive impact on per share expense ratios. In addition, a positive cash flow into the fund is useful in managing the fund because the advisor has more flexibility in taking advantage of new investment opportunities and handling shareholder redemptions.

Under the plan, the funds pay the distributor or others for the expenses of activities that are primarily intended to sell shares of the funds. These expenses also may include service fees paid to securities dealers or others who have executed a servicing agreement with a fund, the distributor or its affiliates and who provide service or account maintenance to shareholders (service fees); and the expenses of printing prospectuses and reports used for sales purposes, of marketing support and of preparing and distributing sales literature and advertisements. Together, these expenses, including the service fees, are "eligible expenses." Such payments would be fixed and not based on expenses incurred by the distributor.

In addition to the payments that the distributor or others are entitled to under the plan, the plan also provides that to the extent a fund, the advisor or the distributor or other parties on behalf of the fund, the advisor or the distributor make payments that are deemed to be for the financing of any activity primarily intended to result in the sale of fund shares within the context of Rule 12b-1 under the Investment Company Act, then such payments shall be deemed to have been made pursuant to the plan.

To the extent fees are for distribution or marketing functions, as distinguished from administrative servicing or agency transactions, certain banks may not participate in the plan because of applicable federal law prohibiting certain banks from engaging in the distribution of fund shares. These banks, however, are allowed to receive fees under the plans for administrative servicing or for agency transactions.

The distributor must provide written reports to the board at least quarterly on the amounts and purpose of any payment made under the plans and any related agreements and furnish the board with such other information as the board may reasonably request to enable it to make an informed determination of whether the plan should be continued.

The plan has been approved according to the provisions of Rule 12b-1. The terms and provisions of the plan also are consistent with Rule 12b-1.

**Custodian Bank**

State Street Bank and Trust Company (the custodian), One Congress Street, Suite 1, Boston, Massachusetts 02114-2016, serves as custodian of the funds' cash and securities under a Master Custodian Agreement with the trust. Foreign securities, if any, are held by foreign banks participating in a network coordinated by the custodian. The custodian takes no part in determining the investment policies of the funds or in deciding which securities are purchased or sold by the funds. The funds, however, may invest in certain obligations of the custodian and may purchase or sell certain securities from or to the custodian.

**Securities Lending Agent**

State Street Bank and Trust Company (SSB) serves as securities lending agent for the funds pursuant to a Securities Lending Administration Agreement with the advisor. The following table provides the amounts of income and fees/compensation related to the funds' securities lending activities during the fiscal year ended August 31, 2025:

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| | | | | |
|:---|:---|:---|:---|:---|
| | American Century Diversified Corporate Bond ETF | American Century Multisector Income ETF | American Century Quality Diversified International ETF | American Century Select High Yield ETF |
| **Gross income from securities lending activities** | **$334032** | **$161462** | **$358566** | **$70011** |
| *Fees and/or compensation paid by the fund for securities lending activities and related services:* |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Fees paid to securities lending agent from a revenue split | $2780 | $1776 | $7655 | $1401 |
| &nbsp;&nbsp;&nbsp;Fees paid for any cash collateral management service (including fees deducted from a pooled cash collateral reinvestment vehicle) that are not included in the revenue split | $2462 | $1168 | $2183 | $489 |
| &nbsp;&nbsp;&nbsp;Administrative fees not included in the revenue split | $0 | $0 | $0 | $0 |
| &nbsp;&nbsp;&nbsp;Indemnification fee not included in the revenue split | $0 | $0 | $0 | $0 |
| &nbsp;&nbsp;&nbsp;Rebate (paid to borrower) | $303903 | $142524 | $279968 | $55554 |
| &nbsp;&nbsp;&nbsp;Other fees not included in revenue split | $0 | $0 | $0 | $0 |
| **Aggregate fees/compensation for securities lending activities** | **$309144** | **$145468** | **$289805** | **$57445** |
| **Net income from securities lending activities** | **$24888** | **$15994** | **$68761** | **$12566** |

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| | | | |
|:---|:---|:---|:---|
| | American Century Short Duration Strategic Income ETF | American Century <br>U.S. Quality Growth ETF | American Century <br>U.S. Quality Value ETF |
| **Gross income from securities lending activities** | **$28535** | **$55143** | **$11358** |
| *Fees and/or compensation paid by the fund for securities lending activities and related services:* |  |  |  |
| &nbsp;&nbsp;&nbsp;Fees paid to securities lending agent from a revenue split | $277 | $1506 | $77 |
| &nbsp;&nbsp;&nbsp;Fees paid for any cash collateral management service (including fees deducted from a pooled cash collateral reinvestment vehicle) that are not included in the revenue split | $210 | $343 | $81 |
| &nbsp;&nbsp;&nbsp;Administrative fees not included in the revenue split | $0 | $0 | $0 |
| &nbsp;&nbsp;&nbsp;Indemnification fee not included in the revenue split | $0 | $0 | $0 |
| &nbsp;&nbsp;&nbsp;Rebate (paid to borrower) | $25635 | $39921 | $10517 |
| &nbsp;&nbsp;&nbsp;Other fees not included in revenue split | $0 | $0 | $0 |
| **Aggregate fees/compensation for securities lending activities** | **$26122** | **$41770** | **$10675** |
| **Net income from securities lending activities** | **$2413** | **$13373** | **$683** |

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As the funds' securities lending agent, SSB is expected to locate borrowers for fund securities, execute loans of portfolio securities pursuant to terms and parameters defined by the advisor and the Board of Trustees, monitor the daily value of the loaned securities and collateral, require additional collateral as necessary, manage cash collateral, and provide certain limited recordkeeping and accounting services.

**Independent Registered Public Accounting Firm**

Deloitte & Touche LLP is the independent registered public accounting firm of the funds. The address of Deloitte & Touche LLP is 1100 Walnut Street, Kansas City, Missouri 64106. As the independent registered public accounting firm of the funds, Deloitte & Touche LLP provides services including auditing the annual financial statements and financial highlights for each fund.

**Brokerage Allocation**

The advisor places orders for equity portfolio transactions with broker-dealers, who receive commissions for their services. Generally, commissions relating to securities traded on foreign exchanges will be higher than commissions relating to securities traded on U.S.

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exchanges. The advisor purchases and sells fixed-income securities through principal transactions, meaning the advisor normally purchases securities on a net basis directly from the issuer or a primary market-maker acting as principal for the securities. The funds generally do not pay a stated brokerage commission on these transactions, although the purchase price for debt securities usually includes an undisclosed compensation. Purchases of securities from underwriters typically include a commission or concession paid by the issuer to the underwriter, and purchases from dealers serving as market-makers typically include a dealer's mark-up (*i.e.*, a spread between the bid and asked prices).

Under the management agreement between the funds and the advisor, the advisor has the responsibility of selecting brokers and dealers to execute portfolio transactions. The funds' policy is to secure the most favorable prices and execution of orders on its portfolio transactions. The advisor selects broker-dealers on their perceived ability to obtain "best execution" in effecting transactions in its clients' portfolios. In selecting broker-dealers to effect portfolio transactions relating to equity securities, the advisor considers the full range and quality of a broker-dealer's research and brokerage services, including, but not limited to, the following:

• applicable commission rates and other transaction costs charged by the broker-dealer

• value of research provided to the advisor by the broker-dealer (including economic forecasts, fundamental and technical advice on individual securities, market analysis, and advice, either directly or through publications or writings, as to the value of securities, availability of securities or of purchasers/sellers of securities)

• timeliness of the broker-dealer's trade executions

• efficiency and accuracy of the broker-dealer's clearance and settlement processes

• broker-dealer's ability to provide data on securities executions

• financial condition of the broker-dealer

• the quality of the overall brokerage and customer service provided by the broker-dealer

In transactions to buy and sell fixed-income securities, the selection of the broker-dealer is determined by the availability of the desired security and its offering price, as well as the broker-dealer's general execution and operational and financial capabilities in the type of transaction involved. The advisor will seek to obtain prompt execution of orders at the most favorable prices or yields. The advisor does not consider the receipt of products or services other than brokerage or research services in selecting broker-dealers.

On an ongoing basis, the advisor seeks to determine what levels of commission rates are reasonable in the marketplace. In evaluating the reasonableness of commission rates, the advisor considers:

• rates quoted by broker-dealers

• the size of a particular transaction, in terms of the number of shares, dollar amount, and number of clients involved

• the ability of a broker-dealer to execute large trades while minimizing market impact

• the complexity of a particular transaction

• the nature and character of the markets on which a particular trade takes place

• the level and type of business done with a particular firm over a period of time

• the ability of a broker-dealer to provide anonymity while executing trades

• historical commission rates

• rates that other institutional investors are paying, based on publicly available information

The brokerage commissions paid by the funds may exceed those that another broker-dealer might have charged for effecting the same transactions, because of the value of the brokerage and research services provided by the broker-dealer. Research services furnished by broker-dealers through whom the funds effect securities transactions may be used by the advisor in servicing all of its accounts, and not all such services may be used by the advisor in managing the portfolios of the funds.

Pursuant to its internal allocation procedures, the advisor regularly evaluates the brokerage and research services provided by each broker-dealer that it uses. On a periodic basis, members of the advisor's portfolio management team assess the quality and value of research and brokerage services provided by each broker-dealer that provides execution services and research to the advisor for its clients' accounts. The results of the periodic assessments are used to add or remove brokers from the approved brokers list, if needed, and to set research budgets for the following period. Execution-only brokers are used where deemed appropriate.

To the extent creation or redemption transactions are conducted on a cash or "cash in lieu" basis, a fund may contemporaneously transact with broker-dealers for the purchase or sale of portfolio securities in connection with such transactions. Such orders may be placed with an Authorized Participant in its capacity as broker-dealer or with an affiliated broker-dealer of such Authorized Participant. In such cases, the funds will require such broker-dealer to achieve execution at a price that is at least as favorable to the fund as the value of such securities used to calculate the fund's NAV. The broker-dealer will be required to reimburse the funds if the price (including applicable brokerage commissions, taxes and transaction costs) at which such securities were bought or sold exceeds the value of such securities used to calculate a fund's NAV. This amount will vary depending on the quality of the execution and may be capped at amounts determined by the Advisor in its sole discretion.

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In the fiscal periods ended August 31, 2025, 2024 and 2023, the brokerage commissions including, as applicable, futures commissions, of each fund are listed in the following table. As new funds, American Century Securitized Credit ETF, American Century Small Cap Growth Insights ETF and American Century Small Cap Value Insights ETF are not included in the table below.

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| | | | |
|:---|:---|:---|:---|
| *Fund* | *2025* | *2024* | *2023* |
| American Century California Municipal Bond ETF | $166 | $18¹ | N/A |
| American Century Diversified Corporate Bond ETF | $25666 | $12509 | $11390 |
| American Century Diversified Municipal Bond ETF | $2588 | $601 | $0 |
| American Century Multisector Floating Income ETF | $308 | $441 | $0² |
| American Century Multisector Income ETF | $23981 | $15774 | $13190 |
| American Century Quality Diversified International ETF | $143752 | $121982 | $171349 |
| American Century Select High Yield ETF | $0 | $0 | $0 |
| American Century Short Duration Strategic Income ETF | $5692 | $2843 | $2155³ |
| American Century U.S. Quality Growth ETF | $328556 | $250021 | $151327 |
| American Century U.S. Quality Value ETF | $77043 | $63117 | $133301 |

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<sup>1</sup> *For the period July 16, 2024, the fund's inception date, through August 31, 2024.*

<sup>2</sup> *For the period March 14, 2023, the fund's inception date, through August 31, 2023.*

<sup>3</sup> *For the period October 11, 2022, the fund's inception date, through August 31, 2023.*

Brokerage commissions paid by a fund may vary significantly from year to year as a result of changing asset levels throughout the year, portfolio turnover, varying market conditions, and other factors. American Century U.S. Quality Growth ETF reported larger than typical brokerage commissions in 2023 as a result of its transition to the American Century U.S. Quality Growth Index.

**Regular Broker-Dealers**

As of the fiscal year ended August 31, 2025, each of the funds listed below owned securities of its regular brokers or dealers (as defined by Rule 10b-1 under the Investment Company Act) or of their parent companies. As new funds, American Century Securitized Credit ETF, American Century Small Cap Growth Insights ETF and American Century Small Cap Value Insights ETF are not included in the table below.

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| | | |
|:---|:---|:---|
| *Fund*  | *Broker, Dealer or Parent*  | *Value of Securities Owned as of<br>August 31, 2025* |
| **American Century California Municipal Bond ETF** |  |  |
| **American Century Diversified Corporate Bond ETF** | Bank of America Corp. | $11109486 |
|  | Bank of Montreal | $857340 |
|  | Barclays PLC | $2506170 |
|  | The Charles Schwab Corp. | $1985188 |
|  | Citigroup, Inc. | $6451738 |
|  | The Goldman Sachs Group, Inc. | $6158159 |
|  | JPMorgan Chase & Co. | $11873968 |
|  | LPL Financial Holdings, Inc. | $669504 |
|  | Morgan Stanley | $11805295 |
|  | Royal Bank of Canada | $2017450 |
|  | State Street Corp. | $2088340 |
|  | UBS Group AG | $2641746 |
|  | Wells Fargo & Co. | $17240724 |
| **American Century Diversified Municipal Bond ETF** |  |  |
| **American Century Multisector Floating Income ETF** |  |  |
| **American Century Multisector Income ETF** | Bank of America Corp. | $783411 |
|  | Bank of Montreal | $1134390 |
|  | Barclays PLC | $781925 |

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| | | |
|:---|:---|:---|
| *Fund*  | *Broker, Dealer or Parent*  | *Value of Securities Owned as of<br>August 31, 2025* |
|  | The Charles Schwab Corp. | $723859 |
|  | Citigroup, Inc. | $1609879 |
|  | LPL Financial Holdings, Inc. | $183986 |
|  | UBS Group AG | $862275 |
| **American Century Quality Diversified International ETF** | Barclays PLC | $3319850 |
| **American Century Select High Yield ETF** |  |  |
| **American Century Short Duration Strategic Income ETF** | Bank of America Corp. | $470953 |
|  | Bank of Montreal | $340151 |
|  | Barclays PLC | $411012 |
|  | The Charles Schwab Corp. | $204140 |
|  | Citigroup, Inc. | $974941 |
|  | The Goldman Sachs Group, Inc. | $1056190 |
|  | JPMorgan Chase & Co. | $177193 |
|  | Morgan Stanley | $630711 |
|  | Royal Bank of Canada | $597613 |
|  | UBS Group AG | $400930 |
|  | Wells Fargo & Co. | $551864 |
| **American Century U.S. Quality Growth ETF** | The Charles Schwab Corp. | $1654103 |
|  | Piper Sandler Cos | $4688081 |
| **American Century U.S. Quality Value ETF** | Ameriprise Financial, Inc. | $222398 |
|  | The Charles Schwab Corp. | $2235372 |
|  | The Goldman Sachs Group, Inc. | $224320 |
|  | Morgan Stanley | $227225 |

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**Information About Fund Shares**

Each of the funds named on the front of this statement of additional information is a series of shares issued by the trust, and shares of each fund have equal voting rights. In addition, each series (or fund) may be divided into separate classes. Additional funds and classes may be added without a shareholder vote. Each fund votes separately on matters affecting that fund exclusively. Voting rights are not cumulative, so that investors holding more than 50% of the trust's (all funds') outstanding shares may be able to elect a Board of Trustees. The trust undertakes dollar-based voting, meaning that the number of votes a shareholder is entitled to is based upon the dollar amount of the shareholder's investment. The election of trustees is determined by the votes received from all the trust's shareholders without regard to whether a majority of shares of any one fund voted in favor of a particular nominee or all nominees as a group.

The assets belonging to each series are held separately by the custodian, and the shares of each series represent a beneficial interest in the principal, earnings and profit (or losses) of investments and other assets held for each series. Within their respective series, all shares have equal redemption rights. Each share, when issued, is fully paid and non-assessable.

Each shareholder has rights to dividends and distributions declared by the fund he or she owns and to the net assets of such fund upon its liquidation or dissolution proportionate to his or her share ownership interest in the fund.

**Valuation of a Fund's Securities**

The NAV for each fund is calculated by adding the value of all portfolio securities and other assets, deducting liabilities, and dividing the result by the number of shares outstanding. Expenses and interest earned on portfolio securities are accrued daily.

Each fund's NAV is calculated as of the close of regular trading on the New York Stock Exchange (the NYSE), each day the NYSE is open for business. The NYSE usually closes at 4 p.m. Eastern time. The NYSE typically observes the following holidays: New Year's Day, Martin Luther King Jr. Day, Washington's Birthday, Good Friday, Memorial Day, Juneteenth National Independence Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day. Although the funds expect the same holidays to be observed in the future, the NYSE may modify its holiday schedule at any time.

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Equity securities (including underlying exchange-traded funds) and other equity instruments for which market quotations are readily available are valued at the last reported official closing price or sale price as of the time of valuation. Futures contracts are generally valued at the settlement price as provided by the exchange or clearing corporation. Portfolio securities primarily traded on foreign securities exchanges that are open later than the NYSE are valued at the last sale price reported at the time the NAV is determined.

Trading in equity securities on European, African and Asian securities exchanges and over-the-counter markets is normally completed at various times before the close of business on each day that the NYSE is open. Model-derived fair value factors may be applied to the market quotations of certain foreign equity securities whose last closing price was before the time the NAV was determined. Factors are based on observable market data and are generally provided by an independent pricing service. Such factors are designed to estimate the price of the foreign equity security that would have prevailed at the time the NAV is determined.

Trading of these securities in foreign markets may not take place on every day that the NYSE is open. In addition, trading may take place in various foreign markets and on some electronic trading networks on Saturdays or on other days when the NYSE is not open and on which the funds' NAVs are not calculated. Therefore, such calculations do not take place contemporaneously with the determination of the prices of many of the portfolio securities used in such calculation, and the value of the funds' portfolios may be affected on days when shares of the funds may not be purchased or sold.

When market quotations are not readily available or are believed by the valuation designee to be unreliable, securities and other assets are valued at fair value as determined in accordance with its policies and procedures.

Debt securities and swap agreements are generally valued using evaluated prices obtained from approved independent pricing services or at the most recent mean of the bid and asked prices provided by investment dealers in accordance with the valuation policies and procedures.

Pricing services will generally provide evaluated prices based on accepted industry conventions, which may require the pricing service to exercise its own discretion. Evaluated prices are commonly derived through utilization of market models that take into consideration various market factors, assumptions, and security characteristics including, but not limited to; trade data, quotations from broker-dealers and active market makers, relevant yield curve and spread data, related sector levels, creditworthiness, trade data or market information on comparable securities and other relevant security-specific information. Pricing services may exercise discretion including, but not limited to; selecting and designing the valuation methodology, determining the source and relevance of inputs and assumptions, and assessing price challenges received from its clients. Pricing services may provide prices when market quotations are not available or when certain pricing inputs may be stale. The use of different models or inputs may result in pricing services determining a different price for the same security. Pricing services generally value fixed-income securities assuming orderly transactions of an institutional round lot size but may consider trades of smaller sizes in their models. The fund may hold or transact in such securities in smaller lot sizes, sometimes referred to as "odd-lots." Securities may trade at different prices when transacted in different lot sizes. The methods used by the pricing services and the valuations so established are reviewed by the valuation designee under the oversight of the Board of Trustees.

There are a number of pricing services available, and the valuation designee, on the basis of ongoing evaluation of these services, may use other pricing services or discontinue the use of any pricing service in whole or in part.

Securities maturing within 60 days of the valuation date may also be valued at cost, plus or minus any amortized discount or premium, unless it is determined, based on established guidelines and procedures, that this would not result in fair valuation of a given security. Other assets and securities for which market quotations or the methods described above are not readily available are valued in good faith in accordance with the valuation designee's procedures.

The value of any security or other asset denominated in a currency other than U.S. dollars is then converted to U.S. dollars at the prevailing foreign exchange rate at the time the fund's NAV is determined. Securities that are neither listed on a securities exchange or traded over the counter may be priced using the mean of the bid and asked prices obtained from an independent broker who is an established market maker in the security.

**Taxes**

**Federal Income Taxes**

Each fund intends to qualify annually as a regulated investment company (RIC) under Subchapter M of the Internal Revenue Code of 1986, as amended (the Code). RICs generally are not subject to federal and state income taxes. To qualify as a RIC a fund must, among other requirements, distribute substantially all of its net investment income and net realized capital gains (if any) to investors each year. If a fund were not eligible to be treated as a RIC, it would be liable for taxes at the fund level on all of its income, significantly reducing its distributions to investors and eliminating investors' ability to treat distributions received from the fund in the same manner in which they were realized by the fund. Under certain circumstances, the Code allows funds to cure deficiencies that would otherwise result in the loss of RIC status, including by paying a fund-level tax.

To qualify as a RIC, a fund must meet certain requirements of the Code, among which are requirements relating to sources of its income and diversification of its assets. A fund is also required to distribute 90% of its investment company taxable income (and for

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American Century California Municipal Bond ETF and American Century Diversified Municipal Bond ETF, 90% of its net tax exempt income) each year. Additionally, a fund must declare dividends by December 31 of each year equal to at least 98% of ordinary income (as of December 31) and 98.2% of capital gains (as of October 31) to avoid the nondeductible 4% federal excise tax on any undistributed amounts.

Certain bonds purchased by the funds may be treated as bonds that were originally issued at a discount. Original issue discount represents interest for federal income tax purposes and can generally be defined as the difference between the price at which a security was issued and its stated redemption price at maturity. Although no cash is actually received by a fund until the maturity of the bond, original issue discount is treated for federal income tax purposes as income earned by a fund over the term of the bond and, therefore, is subject to the distribution requirements of the Code. The annual amount of income earned on such a bond by a fund generally is determined on the basis of a constant yield to maturity that takes into account the semiannual compounding of accrued interest. Original issue discount on an obligation with interest exempt from federal income tax will constitute tax-exempt interest income to American Century California Municipal Bond ETF and American Century Diversified Municipal Bond ETF.

In addition, some of the bonds may be purchased by a fund at a discount that exceeds the original issue discount on such bonds, if any. This additional discount represents market discount for federal income tax purposes. The gain realized on the disposition of any bond having market discount generally will be treated as taxable ordinary income to the extent it does not exceed the accrued market discount on such bond (unless a fund elects to include market discount in income in tax years to which it is attributable or if the amount is considered *de minimis*). Generally, market discount accrues on a daily basis for each day the bond is held by a fund on a constant yield to maturity basis. In the case of any debt security having a fixed maturity date of not more than one year from date of issue, the gain realized on disposition generally will be treated as a short-term capital gain. If a fund holds the foregoing kinds of securities, it may be required to pay out as an income distribution each year an amount that is greater than the total amount of cash interest the fund actually received, which distributions may be made from the assets of the fund or, if necessary, by disposition of portfolio securities, including at a time when such disposition may not otherwise be advantageous.

Investments in lower-rated securities may present special tax issues for the funds to the extent actual or anticipated defaults may be more likely with respect to these types of securities. Tax rules are not entirely clear about issues such as whether and to what extent a fund should recognize market discount on such a debt obligation, when a fund may cease to accrue interest, original issue discount or market discount, when and to what extent a fund may take deductions for bad debts or worthless securities and how a fund should allocate payments received on obligations in default between principal and income.

A fund's transactions in foreign currencies, forward contracts, options, futures contracts (including options and futures contracts on foreign currencies), swaps and short sales will be subject to special provisions of the Code that, among other things, may affect the character of gains and losses realized by the fund (*i.e.*, may affect whether gains or losses are ordinary or capital), accelerate recognition of income to the fund, defer fund losses or accelerate fund gains, and affect the determination of whether capital gains and losses are characterized as long-term or short-term capital gains or losses. These rules could therefore affect the character, amount and timing of distributions to shareholders. These provisions also may require a fund to mark-to-market certain types of the positions in its portfolio (*i.e.*, treat them as if they were sold), which may cause the fund to recognize income without receiving cash with which to make distributions in amounts necessary to satisfy the distribution requirements of the Code for relief from income and excise taxes. A fund will monitor its transactions and may make such tax elections as fund management deems appropriate with respect to these transactions.

Under the Code, gains or losses attributable to fluctuations in exchange rates that occur between the time a fund accrues income or other receivables or accrues expenses or other liabilities denominated in a foreign currency and the time a fund actually collects such receivables or pays such liabilities generally are treated as ordinary income or loss. Similarly, in disposing of debt securities denominated in foreign currencies, certain forward currency contracts, or other instruments, gains or losses attributable to fluctuations in the value of a foreign currency between the date the security, contract, or other instrument is acquired and the date it is disposed of are also usually treated as ordinary income or loss. Under Section 988 of the Code, these gains or losses may increase or decrease the amount of a fund's investment company taxable income distributed to shareholders as ordinary income. This treatment could increase or decrease a fund's ordinary income distributions, which may cause some or all of a fund's previously distributed income to be classified as a return of capital.

A fund's investments in foreign securities may be subject to withholding and other taxes imposed by foreign countries. However, tax conventions between certain countries and the United States may reduce or eliminate such taxes. Any foreign taxes paid by a fund will reduce its dividend distributions to investors.

If more than 50% of the value of a fund's total assets at the end of its fiscal year consists of securities of foreign corporations, the fund may make an election with the Internal Revenue Service with respect to such fiscal year so that fund shareholders may be able to claim a foreign tax credit. If such an election is made, the eligible foreign taxes will be treated as income received by you. In order for you to utilize the foreign tax credit, you must have held your shares for 16 days or more during the 31-day period, beginning 15 days prior to the ex-dividend date. The fund must meet a similar holding period requirement with respect to securities to which a dividend is attributable. Any foreign taxes withheld on payments made "in lieu of" dividends or interest with respect to loaned securities will

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not qualify for the pass-through foreign tax credit to shareholders. Any portion of the foreign tax credit that is ineligible will be deducted in computing net investment income.

If a fund purchases the securities of certain foreign investment entities called passive foreign investment companies (PFIC), capital gains on the sale of those holdings will be deemed ordinary income regardless of how long the fund holds the investment. The fund also may be subject to corporate income tax and an interest charge on certain dividends and capital gains earned from these investments, regardless of whether such income and gains are distributed to the fund. To avoid such tax and interest, the fund may elect to treat PFICs as sold on the last day of its fiscal year, mark-to-market these securities, and recognize any unrealized gains (or losses, to the extent of previously recognized gains) as ordinary income each year.

The amount of capital losses that can be carried forward and used in any single year is subject to an annual limitation if there is a more than 50% "change in ownership" of the fund. An ownership change generally results when shareholders owning 5% or more of the fund increase their aggregate holdings by more than 50% over a three-year lookback period. An ownership change could result in capital loss carryovers being used at a slower rate, thereby reducing the fund's ability to offset capital gains with those losses.

As of August 31, 2025, the funds in the table below had the following capital loss carryovers. When a fund has a capital loss carryover, it does not make capital gains distributions until the loss has been offset. The Regulated Investment Company Modernization Act of 2010 allows the funds to carry forward capital losses incurred in future taxable years for an unlimited period. As new funds, American Century Securitized Credit ETF, American Century Small Cap Growth Insights ETF and American Century Small Cap Value Insights ETF are not included in the table below.

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| | |
|:---|:---|
| *Fund* | *Unlimited* |
| American Century California Municipal Bond ETF | $(445688) |
| American Century Diversified Corporate Bond ETF | $(19674152) |
| American Century Diversified Municipal Bond ETF | $(20159615) |
| American Century Multisector Floating Income ETF | $(97304) |
| American Century Multisector Income ETF | $(15009203) |
| American Century Quality Diversified International ETF | $(57194580) |
| American Century Select High Yield ETF | $(2154107) |
| American Century Short Duration Strategic Income ETF |  |
| American Century U.S. Quality Growth ETF | $(122126082) |
| American Century U.S. Quality Value ETF | $(49921392) |

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If you have not complied with certain provisions of the Internal Revenue Code and Regulations, federal law may require withholding and remission to the IRS at the applicable federal withholding rate on reportable payments (which may include dividends, capital gains distributions and proceeds from the sale of fund shares). Those regulations require you to certify that the Social Security number or tax identification number you provide is correct and that you are not subject to withholding for previous under-reporting to the IRS.

If fund shares are purchased through taxable accounts, distributions either of cash or additional shares of net investment income (if not considered exempt from federal tax) and net short-term capital gains are taxable to you as ordinary income, unless they are designated as qualified dividend income and you meet a minimum required holding period with respect to your shares of a fund, in which case such distributions are taxed at the same rate as long-term capital gains. Qualified dividend income is a dividend received by a fund from the stock of a domestic or qualifying foreign corporation, provided that the fund has held the stock for a required holding period and the stock was not on loan at the time of the dividend. The required holding period for qualified dividend income is met if the underlying shares are held more than 60 days in the 121-day period beginning 60 days prior to the ex-dividend date. Dividends received by the funds on shares of stock of domestic corporations may qualify for the 70% dividends received deduction when distributed to corporate shareholders to the extent that the fund held those shares for more than 45 days.

Although dividends generally will be treated as distributed when paid, any dividend declared by a fund in October, November or December and payable to shareholders of record in such a month that is paid during the following January will be treated for U.S. federal income tax purposes as received by shareholders on December 31 of the calendar year in which it was declared.

Distributions from gains on assets held by a fund longer than 12 months are taxable as long-term gains regardless of the length of time you have held your shares in the fund. If you purchase shares in the fund and sell them at a loss within six months, your loss on the sale of those shares will be treated as a long-term capital loss to the extent of any long-term capital gains dividend you received on those shares.

Each fund may use the "equalization method" of accounting to allocate a portion of its earnings and profits to redemption proceeds. Although using this method generally will not affect a fund's total returns, it may reduce the amount that a fund would otherwise distribute to continuing shareholders by reducing the effect of redemptions of fund shares on fund distributions to shareholders.

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A sale of shares of a fund will be a taxable transaction for federal income tax purposes, and you generally will recognize a gain or loss in an amount equal to the difference between the basis of the shares and the amount received. If a loss is realized on the sale of fund shares, the reinvestment in additional fund shares within 30 days before or after the sale may be subject to the "wash sale" rules of the Code, postponing the recognition of such loss for federal income tax purposes.

A 3.8% Medicare contribution tax is imposed on net investment income, including interest, dividends and capital gains, provided you meet specified income levels. This tax is not imposed on tax-exempt interest.

Any non-U.S. investors in the funds may be subject to U.S. withholding and estate tax and are encouraged to consult their tax advisors prior to investing. Foreign shareholders (*i.e.*, nonresident alien individuals and foreign corporations, partnerships, trusts and estates) are generally subject to U.S. withholding tax at the rate of 30% (or a lower tax treaty rate) on distributions derived from taxable ordinary income. A fund may, under certain circumstances, report all or a portion of a dividend as an interest-related dividend or a short-term capital gain dividend, which would generally be exempt from this 30% U.S. withholding tax, provided certain other requirements are met. Short-term capital gain dividends received by a nonresident alien individual who is present in the U.S. for a period or periods aggregating 183 days or more during the taxable year are not exempt from this 30% withholding tax. Gains realized by foreign shareholders from the sale or other disposition of shares of a fund generally are not subject to U.S. taxation, unless the recipient is an individual who is physically present in the U.S. for 183 days or more per year. Foreign shareholders who fail to provide an applicable IRS form may be subject to backup withholding on certain payments from a fund. Backup withholding will not be applied to payments that are subject to the 30% (or lower applicable treaty rate) withholding tax described in this paragraph. Different tax consequences may result if the foreign shareholder is engaged in a trade or business within the United States. In addition, the tax consequences to a foreign shareholder entitled to claim the benefits of a tax treaty may be different than those described above. Unless certain non-U.S. entities that hold fund shares comply with IRS requirements that will generally require them to report information regarding U.S. persons investing in, or holding accounts with, such entities, a 30% withholding tax may apply to fund distributions payable to such entities and with respect to redemptions and certain capital gain dividends payable to such entities after December 31, 2018. A non-U.S. shareholder may be exempt from the withholding described in this paragraph under an applicable intergovernmental agreement between the U.S. and a foreign government, provided that the shareholder and the applicable foreign government comply with the terms of the agreement. To qualify for an exemption from the backup withholding described above, the foreign shareholder must comply with special certification and filing requirements.

**Creations and Redemptions of Creation Units** 

An Authorized Participant who exchanges securities for Creation Units generally will recognize a gain or a loss. The gain or loss will be equal to the difference between the market value of the Creation Units at the time and the sum of the exchanger's aggregate basis in the securities surrendered plus the amount of cash paid for such Creation Units. A person who redeems Creation Units will generally recognize a gain or loss equal to the difference between the exchanger's basis in the Creation Units and the sum of the aggregate market value of any securities received plus the amount of any cash received for such Creation Units. The IRS, however, may assert that a loss realized upon an exchange of securities for Creation Units cannot be deducted currently under the rules governing "wash sales," or on the basis that there has been no significant change in economic position.

Any capital gain or loss realized upon the creation of Creation Units will generally be treated as long-term capital gain or loss if the securities exchanged for such Creation Units have been held for more than one year. Any capital gain or loss realized upon the redemption of Creation Units will generally be treated as long-term capital gain or loss if the shares comprising the Creation Units have been held for more than one year. Otherwise, such capital gains or losses will generally be treated as short-term capital gain or loss. Any loss upon a redemption of Creation Units held for six months or less will be treated as a long-term capital loss to the extent of any amounts treated as distributions to the applicable Authorized Participant of long-term capital gain with respect to the Creation Units (including any amounts credited to the Authorized Participant as undistributed capital gains).

The funds have the right to reject an order for Creation Units if the purchaser (or group of purchasers) would, upon obtaining the shares so ordered, own 80% or more of the outstanding shares of a fund and if, pursuant to sections 351 and 362 of the Code, the fund would have a basis in the deposit securities different from the market value of such securities on the date of deposit. A fund also has the right to require information necessary to determine beneficial share ownership for purposes of the 80% determination. If a fund does issue Creation Units to a purchaser (or group of purchasers) that would, upon obtaining the Shares so ordered, own 80% or more of the outstanding shares of the fund, the purchaser (or group of purchasers) may not recognize gain or loss upon the exchange of securities for Creation Units.

If a fund redeems Creation Units in cash, it may recognize more capital gains than it will if it redeems Creation Units in-kind.

**Alternative Minimum Tax**

While the interest on bonds issued to finance essential state and local government operations is generally exempt from regular federal income tax, interest on certain private activity bonds issued after August 7, 1986, while exempt from regular federal income tax, constitutes a tax-preference item for taxpayers in determining alternative minimum tax (AMT) liability under the Code and the income tax provisions of several states.

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American Century California Municipal Bond ETF and American Century Diversified Municipal Bond ETF may invest in private activity bonds. The interest on private activity bonds could subject a shareholder to, or increase liability under, the federal AMT, depending on the shareholder's tax situation.

All distributions derived from interest exempt from regular federal income tax may subject corporate shareholders to, or increase their liability under, the AMT because these distributions are included in the corporation's adjusted current earnings.

American Century Investments or your financial intermediary will inform fund shareholders annually of the amount of distributions derived from interest payments on private activity bonds.

**State and Local Taxes**

Distributions by the funds also may be subject to state and local taxes, even if all or a substantial part of those distributions are derived from interest on U.S. government obligations which, if you received such interest directly, would be exempt from state income tax. However, most, but not all, states allow this tax exemption to pass through to fund shareholders when a fund pays distributions to its shareholders. You should consult your tax advisor about the tax status of these distributions in your own state.

The information above is only a summary of some of the tax considerations affecting the funds and their U.S. shareholders. No attempt has been made to discuss individual tax consequences. A prospective investor should consult with his or her tax advisors or state or local tax authorities to determine whether the funds are suitable investments.

**Financial Statements**

The financial statements and financial highlights of the funds (except for American Century Small Cap Growth Insights ETF and American Century Small Cap Value Insights ETF) for the fiscal period ended August 31, 2025 have been audited by Deloitte & Touche LLP, independent registered public accounting firm. Their Reports of Independent Registered Public Accounting Firm and the financial statements included in the funds' <u>[Form N-CSR](https://www.sec.gov/ix?doc=/Archives/edgar/data/1710607/000171060725000307/ck0001710607-20250831.htm)</u> for the fiscal period ended August 31, 2025, are incorporated herein by reference.

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**Appendix A — Principal Shareholders**

The table below shows the names, addresses, and percentage ownership of each DTC Participant that owns of record 5% or more of the outstanding shares of the funds, as of [ ], 2026. Except where otherwise noted, the funds do not have information concerning the beneficial ownership of accounts held in the names of DTC Participants.

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| | | |
|:---|:---|:---|
| *Fund* | *Shareholder* | *Percentage of*<br>*Outstanding Shares*<br>*Owned of Record*  |
| **American Century California Municipal Bond ETF** | **American Century California Municipal Bond ETF** | **American Century California Municipal Bond ETF** |
|  | Charles Schwab & Company, Inc.<br>San Francisco, CA | 42% |
|  | &nbsp;&nbsp;&nbsp;&nbsp;State Street Bank and Trust Company<br>North Quincy, MA<br>*Includes 17.97% beneficially owned by CA Intermediate-Term Tax-Free Bond Fund; and 13.94% beneficially owned by CA High-Yield Municipal Fund* | 32% |
|  | National Financial Services LLC<br>New York, NY | 21% |
| **American Century Diversified Corporate Bond ETF** | **American Century Diversified Corporate Bond ETF** | **American Century Diversified Corporate Bond ETF** |
|  | National Financial Services LLC<br>New York, NY | 23% |
|  | Charles Schwab & Company, Inc.<br>San Francisco, CA | 17% |
|  | LPL Financial LLC<br>San Diego, CA | 12% |
|  | Morgan Stanley Smith Barney, LLC<br>Jersey City, NJ | 10% |
|  | Pershing LLC<br>Jersey City, NJ | 10% |
|  | State Street Bank and Trust Company<br>North Quincy, MA | 9% |
| **American Century Diversified Municipal Bond ETF** | **American Century Diversified Municipal Bond ETF** | **American Century Diversified Municipal Bond ETF** |
|  | Charles Schwab & Company, Inc.<br>San Francisco, CA | 29% |
|  | Pershing LLC<br>Jersey City, NJ | 24% |
|  | LPL Financial LLC<br>San Diego, CA | 15% |
|  | National Financial Services LLC<br>New York, NY | 14% |
|  | Morgan Stanley Smith Barney, LLC<br>Jersey City, NJ | 5% |
| **American Century Multisector Floating Income ETF** | **American Century Multisector Floating Income ETF** | **American Century Multisector Floating Income ETF** |
|  | &nbsp;&nbsp;&nbsp;&nbsp;State Street Bank and Trust Company<br>North Quincy, MA<br>*Includes 71.86% beneficially owned by American Century Investment Management, Inc.* | 72% |
|  | Pershing LLC<br>Jersey City, NJ | 10% |
|  | National Financial Services LLC<br>New York, NY | 7% |
|  | Jane Street Capital<br>New York, NY | 5% |

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| | |
|:---|:---|
| **American Century Multisector Income ETF** | **American Century Multisector Income ETF** |
| &nbsp;&nbsp;&nbsp;&nbsp;State Street Bank and Trust Company<br>North Quincy, MA<br>*Includes 20.57% beneficially owned by Strategic Allocation: Moderate Fund; 14.10% beneficially owned by Strategic Allocation: Aggressive Fund; and 8.77% beneficially owned by Strategic Allocation: Conservative Fund* | 43% |
| Charles Schwab & Company, Inc.<br>San Francisco, CA | 17% |
| Pershing LLC<br>Jersey City, NJ | 8% |
| LPL Financial LLC<br>San Diego, CA | 7% |
| **American Century Quality Diversified International ETF** | **American Century Quality Diversified International ETF** |
| Pershing LLC<br>Jersey City, NJ | 26% |
| Charles Schwab & Company, Inc.<br>San Francisco, CA | 17% |
| Raymond James & Associates, LLC<br>St. Petersburg, FL | 14% |
| &nbsp;&nbsp;&nbsp;&nbsp;State Street Bank and Trust Company<br>North Quincy, MA<br>*Includes 6.45% beneficially owned by Strategic Allocation: Aggressive Fund; and 5.52% beneficially owned by Strategic Allocation: Moderate Fund* | 13% |
| LPL Financial LLC<br>San Diego, CA | 7% |
| Merrill Lynch, Pierce, Fenner & Smith Inc.<br>New York, NY | 6% |
| National Financial Services LLC<br>New York, NY | 5% |
| **American Century Securitized Credit ETF** | **American Century Securitized Credit ETF** |
| **American Century Select High Yield ETF** | **American Century Select High Yield ETF** |
| Pershing LLC<br>Jersey City, NJ | 83% |
| National Financial Services LLC<br>New York, NY | 7% |
| **American Century Short Duration Strategic Income ETF** | **American Century Short Duration Strategic Income ETF** |
| &nbsp;&nbsp;&nbsp;&nbsp;State Street Bank and Trust Company<br>North Quincy, MA<br>*Includes 17.33% beneficially owned by Strategic Allocation: Moderate Fund; 10.21% beneficially owned by Strategic Allocation: Aggressive Fund; and 10.06% beneficially owned by Strategic Allocation: Conservative Fund* | 38% |
| Charles Schwab & Company, Inc.<br>San Francisco, CA | 25% |
| Pershing LLC<br>Jersey City, NJ | 24% |
| National Financial Services LLC<br>New York, NY | 8% |
| **American Century Small Cap Growth Insights ETF** | **American Century Small Cap Growth Insights ETF** |
| &nbsp;&nbsp;&nbsp;&nbsp;State Street Bank and Trust Company<br>North Quincy, MA<br>*Includes 76.92% beneficially owned by American Century Investment Management, Inc.* | 77% |

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| | |
|:---|:---|
| Charles Schwab & Company, Inc.<br>San Francisco, CA | 18% |
| **American Century Small Cap Value Insights ETF** | **American Century Small Cap Value Insights ETF** |
| &nbsp;&nbsp;&nbsp;&nbsp;State Street Bank and Trust Company<br>North Quincy, MA<br>*Includes 76.92% beneficially owned by American Century Investment Management, Inc.* | 77% |
| Charles Schwab & Company, Inc.<br>San Francisco, CA | 20% |
| **American Century U.S. Quality Growth ETF** | **American Century U.S. Quality Growth ETF** |
| LPL Financial LLC<br>San Diego, CA | 29% |
| Charles Schwab & Company, Inc.<br>San Francisco, CA | 19% |
| National Financial Services LLC<br>New York, NY | 15% |
| Pershing LLC<br>Jersey City, NJ | 10% |
| Raymond James & Associates, LLC<br>St. Petersburg, FL | 7% |
| **American Century U.S. Quality Value ETF** | **American Century U.S. Quality Value ETF** |
| &nbsp;&nbsp;&nbsp;&nbsp;State Street Bank and Trust Company<br>North Quincy, MA<br>*Includes 15.88% beneficially owned by Strategic Allocation: Aggressive Fund; 15.66% beneficially owned by Strategic Allocation: Moderate Fund; and 6.30% beneficially owned by Strategic Allocation: Conservative Fund* | 37% |
| Pershing LLC<br>Jersey City, NJ | 25% |
| LPL Financial LLC<br>San Diego, CA | 18% |
| Charles Schwab & Company, Inc.<br>San Francisco, CA | 9% |
| National Financial Services LLC<br>New York, NY | 8% |

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[A shareholder owning beneficially more than 25% of the trust's outstanding shares may be considered a controlling person. The vote of any such person could have a more significant effect on matters presented at a shareholders' meeting than votes of other shareholders. Although Charles Schwab & Co Inc, San Francisco, California is the record owner of more than 25% of the shares of the trust, it is not a control person because it is not the beneficial owner of such shares. As of [ ], 2026, the officers and trustees of the funds, as a group, owned less than 1% of a fund's outstanding shares.]

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**Appendix B – Explanation of Fixed-Income Securities Ratings**

As described in the prospectuses, the funds invest in fixed-income securities. Those investments, however, are subject to certain credit quality restrictions, as noted in the prospectuses and in this statement of additional information. The following are examples of the rating categories referenced in the prospectus disclosure.

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| | |
|:---|:---|
| **Ratings of Corporate and Municipal Debt Securities** | **Ratings of Corporate and Municipal Debt Securities** |
| ***Standard & Poor's Long-Term Issue Credit Ratings\**** | ***Standard & Poor's Long-Term Issue Credit Ratings\**** |
| *Category* | *Definition* |
| AAA | An obligation rated 'AAA' has the highest rating assigned by Standard & Poor's. The obligor's capacity to meet its financial commitment on the obligation is extremely strong. |
| AA | An obligation rated 'AA' differs from the highest-rated obligations only to a small degree. The obligor's capacity to meet its financial commitment on the obligation is very strong. |
| A | An obligation rated 'A' is somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than obligations in higher-rated categories. However, the obligor's capacity to meet its financial commitment on the obligation is still strong. |
| BBB | An obligation rated 'BBB' exhibits adequate protection parameters. However, adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity of the obligor to meet its financial commitment on the obligation. |
| BB;B; CCC; CC; and C | Obligations rated 'BB', 'B', 'CCC', 'CC', and 'C' are regarded as having significant speculative characteristics. 'BB' indicates the least degree of speculation and 'C' the highest. While such obligations will likely have some quality and protective characteristics, these may be outweighed by large uncertainties or major exposures to adverse conditions. |
| BB | An obligation rated 'BB' is less vulnerable to nonpayment than other speculative issues. However, it faces major ongoing uncertainties or exposure to adverse business, financial, or economic conditions which could lead to the obligor's inadequate capacity to meet its financial commitment on the obligation. |
| B | An obligation rated 'B' is more vulnerable to nonpayment than obligations rated 'BB', but the obligor currently has the capacity to meet its financial commitment on the obligation. Adverse business, financial, or economic conditions will likely impair the obligor's capacity or willingness to meet its financial commitment on the obligation. |
| CCC | An obligation rated 'CCC' is currently vulnerable to nonpayment, and is dependent upon favorable business, financial, and economic conditions for the obligor to meet its financial commitment on the obligation. In the event of adverse business, financial, or economic conditions, the obligor is not likely to have the capacity to meet its financial commitment on the obligation. |
| CC | An obligation rated 'CC' is currently highly vulnerable to nonpayment. The 'CC' rating is used when a default has not yet occurred, but Standard & Poor's expects default to be a virtual certainty, regardless of the anticipated time to default. |
| C | An obligation rated 'C' is currently highly vulnerable to nonpayment, and the obligation is expected to have lower relative seniority or lower ultimate recovery compared to obligations that are rated higher. |
| D | An obligation rated 'D' is in default or in breach of an imputed promise. For non-hybrid capital instruments, the 'D' rating category is used when payments on an obligation are not made on the date due, unless Standard & Poor's believes that such payments will be made within five business days in the absence of a stated grace period or within the earlier of the stated grace period or 30 calendar days. The 'D' rating also will be used upon the filing of a bankruptcy petition or the taking of similar action and where default on an obligation is a virtual certainty, for example due to automatic stay provisions. An obligation's rating is lowered to 'D' if it is subject to a distressed exchange offer. |
| NR | This indicates that no rating has been requested, or that there is insufficient information on which to base a rating, or that Standard & Poor's does not rate a particular obligation as a matter of policy. |

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\*&nbsp;&nbsp;&nbsp;&nbsp;The ratings from "AA" to "CCC" may be modified by the addition of a plus (+) or minus (-) sign to show relative standing within the major rating categories.

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| | |
|:---|:---|
| ***Moody's Investors Service, Inc. Global Long-Term Rating Scale*** | ***Moody's Investors Service, Inc. Global Long-Term Rating Scale*** |
| *Category* | *Definition* |
| Aaa | Obligations rated Aaa are judged to be of the highest quality, subject to the lowest level of credit risk. |
| Aa | Obligations rated Aa are judged to be of high quality and are subject to very low credit risk. |
| A | Obligations rated A are judged to be upper-medium grade and are subject to low credit risk. |

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| | |
|:---|:---|
| ***Moody's Investors Service, Inc. Global Long-Term Rating Scale*** | ***Moody's Investors Service, Inc. Global Long-Term Rating Scale*** |
| Baa | Obligations rated Baa are judged to be medium-grade and subject to moderate credit risk and as such may possess certain speculative characteristics. |
| Ba | Obligations rated Ba are judged to be speculative and are subject to substantial credit risk. |
| B | Obligations rated B are considered speculative and are subject to high credit risk. |
| Caa | Obligations rated Caa are judged to be speculative of poor standing and are subject to very high credit risk. |
| Ca | Obligations rated Ca are highly speculative and are likely in, or very near, default, with some prospect of recovery of principal and interest. |
| C | Obligations rated C are the lowest rated and are typically in default, with little prospect for recovery of principal or interest. |

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Note: Moody's appends numerical modifiers 1, 2, and 3 to each generic rating classification from Aa through Caa. The modifier 1 indicates that the obligation ranks in the higher end of its generic rating category; the modifier 2 indicates a mid-range ranking; and the modifier 3 indicates a ranking in the lower end of that generic rating category. Additionally, a "(hyb)" indicator is appended to all ratings of hybrid securities issued by banks, insurers, finance companies, and securities firms.

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| | |
|:---|:---|
| ***Fitch Investors Service, Inc. Long-Term Ratings*** | ***Fitch Investors Service, Inc. Long-Term Ratings*** |
| *Category* | *Definition* |
| AAA | **Highest credit quality.** 'AAA' ratings denote the lowest expectation of credit risk. They are assigned only in cases of exceptionally strong capacity for payment of financial commitments. This capacity is highly unlikely to be adversely affected by foreseeable events. |
| AA | **Very high credit quality.** 'AA' ratings denote expectations of very low credit risk. They indicate very strong capacity for payment of financial commitments. This capacity is not significantly vulnerable to foreseeable events. |
| A | **High credit quality.** 'A' ratings denote expectations of low credit risk. The capacity for payment of financial commitments is considered strong. This capacity may, nevertheless, be more vulnerable to adverse business or economic conditions than is the case for higher ratings. |
| BBB | **Good credit quality.** 'BBB' ratings indicate that expectations of credit risk are currently low. The capacity for payment of financial commitments is considered adequate but adverse business or economic conditions are more likely to impair this capacity. |
| BB | **Speculative.** 'BB' ratings indicate an elevated vulnerability to credit risk, particularly in the event of adverse changes in business or economic conditions over time; however, business or financial alternatives may be available to allow financial commitments to be met. |
| B | **Highly speculative.** 'B' ratings indicate that material credit risk is present. |
| CCC | **Substantial credit risk.** 'CCC' ratings indicate that substantial credit risk is present. |
| CC | **Very high levels of credit risk.** 'CC' ratings indicate very high levels of credit risk. |
| C | **Exceptionally high levels of credit risk.** 'C' indicates exceptionally high levels of credit risk. |

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Defaulted obligations typically are not assigned 'RD' or 'D' ratings, but are instead rated in the 'B' to 'C' rating categories, depending upon their recovery prospects and other relevant characteristics. This approach better aligns obligations that have comparable overall expected loss but varying vulnerability to default and loss.

Notes: The modifiers "+" or "-" may be appended to a rating to denote relative status within major rating categories. Such suffixes are not added to the 'AAA' obligation rating category, or to corporate finance obligation ratings in the categories below 'CCC'.

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| | |
|:---|:---|
| ***Standard & Poor's Corporate Short-Term Note Ratings*** | ***Standard & Poor's Corporate Short-Term Note Ratings*** |
| *Category* | *Definition* |
| A-1 | A short-term obligation rated 'A-1' is rated in the highest category by Standard & Poor's. The obligor's capacity to meet its financial commitment on the obligation is strong. Within this category, certain obligations are designated with a plus sign (+). This indicates that the obligor's capacity to meet its financial commitment on these obligations is extremely strong. |
| A-2 | A short-term obligation rated 'A-2' is somewhat more susceptible to the adverse effects of changes in circumstances and economic conditions than obligations in higher rating categories. However, the obligor's capacity to meet its financial commitment on the obligation is satisfactory. |
| A-3 | A short-term obligation rated 'A-3' exhibits adequate protection parameters. However, adverse economic conditions or changing circumstances are more likely to lead to a weakened capacity of the obligor to meet its financial commitment on the obligation. |

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| | |
|:---|:---|
| ***Standard & Poor's Corporate Short-Term Note Ratings*** | ***Standard & Poor's Corporate Short-Term Note Ratings*** |
| B | A short-term obligation rated 'B' is regarded as vulnerable and has significant speculative characteristics. The obligor currently has the capacity to meet its financial commitments; however, it faces major ongoing uncertainties which could lead to the obligor's inadequate capacity to meet its financial commitments. |
| C | A short-term obligation rated 'C' is currently vulnerable to nonpayment and is dependent upon favorable business, financial, and economic conditions for the obligor to meet its financial commitment on the obligation. |
| D | A short-term obligation rated 'D' is in default or in breach of an imputed promise. For non-hybrid capital instruments, the 'D' rating category is used when payments on an obligation are not made on the date due, unless Standard & Poor's believes that such payments will be made within any stated grace period. However, any stated grace period longer than five business days will be treated as five business days. The 'D' rating also will be used upon the filing of a bankruptcy petition or the taking of a similar action and where default on an obligation is a virtual certainty, for example due to automatic stay provisions. An obligation's rating is lowered to 'D' if it is subject to a distressed exchange offer. |

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| | |
|:---|:---|
| ***Moody's Global Short-Term Rating Scale*** | ***Moody's Global Short-Term Rating Scale*** |
| *Category* | *Definition* |
| P-1 | Issuers (or supporting institutions) rated Prime-1 have a superior ability to repay short-term debt obligations. |
| P-2 | Issuers (or supporting institutions) rated Prime-2 have a strong ability to repay short-term debt obligations. |
| P-3 | Issuers (or supporting institutions) rated Prime-3 have an acceptable ability to repay short-term obligations. |
| NP | Issuers (or supporting institutions) rated Not Prime do not fall within any of the Prime rating categories. |

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| | |
|:---|:---|
| ***Fitch Investors Service, Inc. Short-Term Ratings*** | ***Fitch Investors Service, Inc. Short-Term Ratings*** |
| *Category* | *Definition* |
| F1 | **Highest short-term credit quality.** Indicates the strongest intrinsic capacity for timely payment of financial commitments; may have an added "+" to denote any exceptionally strong credit feature.  |
| F2 | **Good short-term credit quality.** Good intrinsic capacity for timely payment of financial commitments. |
| F3 | **Fair short-term credit quality.** The intrinsic capacity for timely payment of financial commitments is adequate.  |
| B | **Speculative short-term credit quality.** Minimal capacity for timely payment of financial commitments, plus heightened vulnerability to near term adverse changes in financial and economic conditions. |
| C | **High short-term default risk.** Default is a real possibility. |
| RD | **Restricted default.** Indicates an entity that has defaulted on one or more of its financial commitments, although it continues to meet other financial obligations. Typically applicable to entity ratings only. |
| D | **Default** Indicates a broad-based default event for an entity, or the default of a short-term obligation. |

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| | |
|:---|:---|
| ***Standard & Poor's Municipal Short-Term Note Ratings*** | ***Standard & Poor's Municipal Short-Term Note Ratings*** |
| *Category* | *Definition* |
| SP-1 | Strong capacity to pay principal and interest. An issue determined to possess a very strong capacity to pay debt service is given a plus (+) designation. |
| SP-2 | Satisfactory capacity to pay principal and interest, with some vulnerability to adverse financial and economic changes over the term of the notes. |
| SP-3 | Speculative capacity to pay principal and interest. |

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| | |
|:---|:---|
| ***Moody's US Municipal Short-Term Debt Ratings*** | ***Moody's US Municipal Short-Term Debt Ratings*** |
| *Category* | *Definition* |
| MIG 1 | This designation denotes superior credit quality. Excellent protection is afforded by established cash flows, highly reliable liquidity support, or demonstrated broad-based access to the market for refinancing. |
| MIG 2 | This designation denotes strong credit quality. Margins of protection are ample, although not as large as in the preceding group. |
| MIG 3 | This designation denotes acceptable credit quality. Liquidity and cash-flow protection may be narrow, and market access for refinancing is likely to be less well-established. |
| SG | This designation denotes speculative-grade credit quality. Debt instruments in this category may lack sufficient margins of protection. |

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| | |
|:---|:---|
| ***Moody's Demand Obligation Ratings*** | ***Moody's Demand Obligation Ratings*** |
| *Category* | *Definition* |
| VMIG 1 | This designation denotes superior credit quality. Excellent protection is afforded by the superior short-term credit strength of the liquidity provider and structural and legal protections that ensure the timely payment of purchase price upon demand. |
| VMIG 2 | This designation denotes strong credit quality. Good protection is afforded by the strong short-term credit strength of the liquidity provider and structural and legal protections that ensure the timely payment of purchase price upon demand. |
| VMIG 3 | This designation denotes acceptable credit quality. Adequate protection is afforded by the satisfactory short-term credit strength of the liquidity provider and structural and legal protections that ensure the timely payment of purchase price upon demand. |
| SG | This designation denotes speculative-grade credit quality. Demand features rated in this category may be supported by a liquidity provider that does not have an investment grade short-term rating or may lack the structural and/or legal protections necessary to ensure the timely payment of purchase price upon demand. |

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**Appendix C – Proxy Voting Policies**

American Century Investment Management, Inc. (the "Adviser") is the investment manager for a variety of advisory clients, including the American Century family of funds. In such capacity, the Adviser has been delegated the authority to vote proxies with respect to investments held in certain accounts it manages. The following is a statement of the proxy voting policies (the "Policies") that have been adopted by the Adviser. In the exercise of proxy voting authority, which has been delegated to it by particular clients, the Adviser will apply the Policies in accordance with, and subject to, any specific policies that have been adopted by the client and communicated to and accepted by the Adviser in writing.

**I.General Principles**

In providing the service of voting client proxies, the Adviser is guided by general fiduciary principles, must act prudently, solely in the interest of its clients, and must not subordinate client interests to unrelated objectives. Except as otherwise indicated in these Policies, the Adviser will use its best efforts to vote all proxies with respect to investments held in the client accounts it manages. Shares may not be voted if the cost or administrative burden of voting shares of a particular portfolio company in the judgment of the Adviser exceeds the benefit to fund shareholders. The Adviser will attempt to consider all factors of its vote that could affect the value of the investment.

Although in most instances the Adviser will vote proxies consistently across all client accounts, the votes will be based on the best interests of each client. As a result, accounts managed by the Adviser may at times vote differently on the same proposals. Examples of when an account's vote might differ from other accounts managed by the Adviser include, but are not limited to, proxy contests and proposed mergers. In short, the Adviser will vote proxies in the manner that it believes will do the most to maximize shareholder value.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**A.Non-U.S. Proxies**

The Adviser will generally evaluate non-U.S. proxies in the context of the Policies but will also, where feasible, take into consideration differing laws, regulations, and practices in the relevant foreign market in determining if and how to vote. There may also be circumstances when practicalities and costs involved with non-U.S. investing make it disadvantageous to vote shares. For instance, the Adviser generally does not vote proxies in circumstances where share blocking restrictions apply, when meeting attendance is required in person, or when current share ownership disclosure is required.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**B.Stewardship and Engagement**

As long-term owners and as part of its stewardship efforts, the Adviser undertakes regular contact with portfolio company management to provide the Adviser an opportunity to gain additional information when voting proxies.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**C.Proposals Involving Sustainability Matters** 

The Adviser will vote with the expectation of maximizing shareholder value and believes that certain sustainability issues can potentially impact a company's long-term financial performance. On a case-by-case basis, the financial materiality and potential risks or economic impact of the sustainability issues underpinning proxy proposals are considered and it is ultimately each team's portfolio managers that are responsible for making the voting decision.

The portfolio management teams for portfolios that have sustainability considerations in their mandates can place emphasis around those considerations when voting proxies with the objective of enhancing outcomes.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**D.Exception Voting** 

The Adviser reserves the right to vote contrary to the Policies when, in its opinion, the vote will do the most to maximize the investment objective of the account.

**II.Specific Proxy Matters**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**A.Routine Matters**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**1.Election of Trustees**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.***Generally.*** *(i)* The Adviser will generally support the election of trustees that results in a board made up of a majority of independent trustees. (ii) In general, the Adviser will vote in favor of management's trustee nominees if they are running unopposed. The Adviser believes that management is in the best position to evaluate the qualifications of trustees and the needs and dynamics of a particular board. (iii) When management's nominees are opposed in a proxy contest, the Adviser will evaluate which nominees' publicly announced management policies and goals are most likely to maximize shareholder value, as well as the past performance of the

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incumbents (iv) The Adviser maintains the ability to vote against any candidate whom it believes is not qualified or if there are specific concerns about the individual, such as allegations of criminal wrongdoing or breach of fiduciary responsibilities. (v) Additional information the Adviser may consider concerning trustee nominees include, but is not limited to, whether (1) there is an adequate explanation for repeated absences at board meetings, (2) the nominee receives non-board fee compensation, (3) there is a family relationship between the nominee and the company's chief executive officer or controlling shareholder, and/or (4) the nominee has sufficient time and commitment to serve effectively in light of the nominee's service on other public company boards.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.***Committee Service.*** The Adviser will withhold votes for non-independent trustees who serve on the audit and/or compensation committees of the board.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.***Classification of Boards.*** The Adviser believes classified boards represent a form of anti-takeover device, which is generally not in the interests of minority shareholders. Accordingly, the Adviser will generally support proposals that seek to declassify boards. Additionally, the Adviser will oppose efforts to adopt classified board structures.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.***Majority Independent Board.*** The Adviser will support proposals calling for a majority of independent trustees on a board. The Adviser believes that a majority of independent trustees can help to facilitate objective decision making and enhance accountability to shareholders.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;e.***Majority Vote Standard for Trustee Elections.*** The Adviser will generally vote in favor of proposals calling for trustees to be elected by an affirmative majority of the votes cast in a board election, provided that the proposal allows for a plurality voting standard in the case of contested elections. The Adviser may consider voting against such shareholder proposals where a company's board has adopted an alternative measure, such as a trustee resignation policy, that provides a meaningful alternative to the majority voting standard and appropriately addresses situations where an incumbent trustee fails to receive the support of the majority of the votes cast in an uncontested election.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;f.***Separate CEO and Chair.*** The Adviser will generally vote against shareholder proposals requesting an independent chair if the board is majority independent. Conversely, if the board is not majority independent, the Adviser will generally vote in favor of management proposals to separate the roles of CEO and chair of the board of trustees.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;g.***Withholding Campaigns.*** The Adviser will generally support proposals calling for shareholders to withhold votes for trustees where such actions will advance the principles set forth in paragraphs 1(a) through 1(f) above.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;h.***Trustee Indemnification.*** The Adviser will generally vote in favor of a corporation's proposal to indemnify its officers and trustees in accordance with applicable state law. Indemnification arrangements are often necessary to attract and retain qualified trustees.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2.Ratification of Selection of Auditors**

The Adviser will generally rely on the judgment of the portfolio company's audit committee in selecting the independent auditors who will provide the best service to the company. The Adviser believes that independence of the auditors is paramount and will vote against auditors whose independence appears to be impaired. The Adviser will generally vote against proposed auditors in circumstances where the auditor has or may have a potential conflict of interest, including where: (a) an auditor has a financial interest in or association with the company, and is therefore not independent; (b) non-audit fees are excessive compared to audit fees (c) the audit firm's tenure is excessively long; or (d) there is reason to believe that the independent auditor has previously rendered an opinion to the company that is either inaccurate or not indicative of the company's financial position.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**B.Compensation Matters**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**1.Executive and Trustee Compensation**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.***Advisory Vote on Compensation.*** The Adviser believes there are several effective ways to convey concerns about compensation including voting against the advisory vote on executive compensation (say-on-pay proposals), voting against specific incentive plans or amendments to incentive plans it deems excessive or withholding votes from compensation committee members. The Adviser will consider and vote on a case-by-case basis on say-on-pay proposals and will generally support management proposals unless there are inadequate risk-mitigation features or other specific concerns exist, including if the Adviser concludes that executive compensation is (i)

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misaligned with shareholder interests, (ii) unreasonable in amount, or (iii) not in the aggregate meaningfully tied to the company's performance.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.***Frequency of Advisory Votes on Compensation.*** The Adviser generally supports the triennial option for the frequency of say-on-pay proposals but will consider management recommendations for an alternative approach.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.***Clawback of Incentive Compensation.*** The Adviser expects portfolio companies to structure executive compensation plans in a manner that does not encourage excessive risk-taking or insulate management from the consequences of failures of risk management and oversight. The Adviser generally supports properly-structured clawback provisions in executive compensation plans as a way to mitigate the potential for excessive risk taking. In evaluating compensation clawback proposals, the Adviser will consider whether the company has a history of financial restatements, material financial problems, and any other factors deemed relevant.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.***Trustees' Stock Options Plans.*** The Adviser believes that stock options are an appropriate form of compensation for trustees, and the Adviser will generally vote for trustee stock option plans that are reasonable and do not result in excessive shareholder dilution. Analysis of such proposals will be made on a case-by-case basis and will take into account total board compensation and the company's total exposure to stock option plan dilution.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2.Equity Based Compensation Plans**

The Adviser believes that equity-based compensation plans are economically significant issues upon which shareholders are entitled to vote. The Adviser recognizes that equity-based compensation plans can be useful in attracting and retaining desirable employees. The cost associated with such plans must be measured if plans are to be used appropriately to maximize shareholder value. The Adviser may conduct an analysis of stock option, stock bonus or similar plans or material amendments thereto, including replenishing a plan with additional shares.

Features that may result in the Adviser voting against the initial adoption of a plan or subsequent amendment to replenish the plan with additional shares include whether the plan:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Provides for immediate vesting of all stock options in the event of a change of control of the company without reasonable safeguards against abuse (see "Anti-Takeover Proposals" below);

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Resets outstanding stock options at a lower strike price, unless accompanied by a corresponding and proportionate reduction in the number of shares designated. The Adviser will generally oppose adoption of stock option plans that explicitly or historically permit repricing of stock options, regardless of the number of shares reserved for issuance, since their effect is impossible to evaluate;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Establishes restriction periods shorter than three years for restricted stock grants;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Does not reasonably associate awards to performance of the company (especially as it relates to the selection of appropriate vesting metrics, which ideally should contain both absolute and relative measures); or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;e.Is excessively dilutive to the company. Factors that will be considered in the determination include the company's overall market capitalization, the performance of the company relative to its peers, and the maturity of the company and its industry; for example, technology companies often use options broadly throughout its employee base, which may justify somewhat greater dilution.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**3.Non-Stock Incentive Plans**

Management may propose a variety of non-stock, cash-based incentive or bonus plans to stimulate employee performance. In general, the cash or other corporate assets required for most incentive plans is not material, and the Adviser will vote in favor of such proposals. Case-by-case determinations will be made of the appropriateness of the amount of shareholder value transferred by proposed plans.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**C.Shareholder Rights**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**1.One Share, One Vote** 

The Adviser generally supports proposals to equalize the voting rights of shareholders, including the elimination of special or super voting share classes and the establishment of single-class voting structures.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2.Right to Call Special Shareholder Meetings**

The corporation statutes of many states allow minority shareholders at a certain threshold level of ownership to call a special meeting of shareholders. This right can be eliminated (or the threshold increased) by amendment to the company's charter documents. The Adviser believes that the right to call a special shareholder meeting is significant for minority shareholders; the elimination of such right will be viewed as an anti-takeover measure and the Adviser will generally vote against proposals attempting to eliminate this right and for proposals attempting to restore it.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**3.Right to Act by Written Consent**

The Adviser will generally vote for proposals to permit shareholders to act by written consent if the company does not currently permit shareholders to call for a special meeting or to act by written consent. The Adviser will generally vote against proposals on written consent if the company permits shareholders the right to call for a special meeting.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**4.Proxy Access**

The Adviser believes that the ability of qualifying shareholders to nominate a certain number of trustees on the company's proxy statement may have corporate governance benefits. Accordingly, the Adviser will generally vote in favor of proposals to adopt proxy access rules offering a balanced set of limitations. When considering such proposals, the factors taken into account will include the following: (i) the ownership percentages and holding periods proposed; (ii) the maximum proportion of trustees that shareholders may nominate each year; and (iii) any other material restrictions included in the proposal.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**D.Anti-Takeover Proposals**

In general, the Adviser will vote against any proposal, whether made by management or shareholders, which the Adviser believes would materially discourage a potential acquisition or takeover. In most cases an acquisition or takeover of a particular company will increase share value. The adoption of anti-takeover measures may prevent or frustrate a bid from being made, may prevent consummation of the acquisition, and may have a negative effect on share price when no acquisition proposal is pending. In particular circumstances, the Adviser may vote in favor of some forms of control protective measures if they are responsive to a particular circumstance, are narrowly focused and have a sunset provision reasonably tied to the circumstances.

The items below discuss specific anti-takeover proposals.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**1.Staggered Board**

If a company has a "staggered board," its trustees are elected for terms of more than one year and only a segment of the board stands for election in any year. Therefore, a potential acquiror cannot replace the entire board in one year even if it controls a majority of the votes. Although staggered boards may provide some degree of continuity and stability of leadership and direction to the board of trustees, the Adviser believes that staggered boards are primarily an anti-takeover device and will vote against establishing them and for eliminating them. However, the Adviser does not necessarily vote against the re-election of trustees serving on staggered boards.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2.Cumulative Voting**

Cumulative voting gives minority shareholders a stronger voice in the company and a greater chance for representation especially when a company maintains a staggered or classified board.

Accordingly, if a company has a staggered board, the Adviser will: a) vote in favor of any proposal to adopt cumulative voting, and b) vote against any proposal to eliminate cumulative voting that is already in place.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**3."Blank Check" Preferred Stock**

Blank check preferred stock gives the board of trustees the ability to issue preferred stock, without further shareholder approval, with such rights, preferences, privileges and restrictions as may be set by the board. In response to a hostile takeover attempt, the board could issue such stock to a friendly party or "white knight" or could establish conversion rights or other rights in the preferred stock which would dilute the common stock and make an acquisition impossible or less attractive. The argument in favor of blank check preferred stock is that it gives the board flexibility in pursuing financing, acquisitions or other proper corporate purposes without incurring the time or expense of a shareholder vote. Generally, the Adviser will vote against blank check preferred stock. However, the Adviser may vote in favor of blank check preferred stock if the proxy statement discloses that such stock is limited to use for a specific, proper corporate objective such as a financing instrument.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**4.Elimination of Preemptive Rights**

When a company grants preemptive rights, existing shareholders are given an opportunity to maintain their proportional ownership when new shares are issued. A proposal to eliminate preemptive rights is a request from management to revoke that right.

While preemptive rights will protect the shareholder from having its equity diluted, it may also decrease a company's ability to raise capital through stock offerings or use stock for acquisitions or other proper corporate purposes. Preemptive rights may therefore result in a lower market value for the company's stock. In the long term, shareholders could be adversely affected by preemptive rights. The Adviser generally votes against proposals to grant preemptive rights and for proposals to eliminate preemptive rights.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**5.Non-targeted Share Repurchase**

A non-targeted share repurchase is generally used by company management to prevent the value of stock held by existing shareholders from deteriorating. A non-targeted share repurchase may reflect management's belief in the favorable business prospects of the company. The Adviser finds no disadvantageous effects of a non-targeted share repurchase and will generally vote for the approval of a non-targeted share repurchase subject to analysis of the company's financial condition.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**6.Increase in Authorized Common Stock**

The issuance of new common stock can also be viewed as an anti-takeover measure, although its effect on shareholder value would appear to be less significant than the adoption of blank check preferred stock. The Adviser will evaluate the amount of the proposed increase and the purpose or purposes for which the increase is sought. If the increase is not excessive and is sought for proper corporate purposes, the Adviser will generally vote to approve the increase. Proper corporate purposes might include, for example, the creation of additional stock to accommodate a stock split or stock dividend, additional stock required for a proposed acquisition, or additional stock required to be reserved upon exercise of employee stock option plans or employee stock purchase plans. Generally, the Adviser will vote in favor of an increase in authorized common stock of up to 100% outstanding and otherwise reserved for all legitimate corporate purposes; increases in excess of 100% are evaluated on a case-by-case basis and will be voted affirmatively if management has provided sound justification for the increase.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**7."Supermajority" Voting Provisions**

A "supermajority" voting provision is a provision placed in a company's charter documents which would require approval by the vote of greater than a simple majority (generally ranging from 66% to 90%) of shareholder votes to approve any type of acquisition of the company.

The supermajority provision makes an acquisition more time-consuming and expensive for the acquiror. Accordingly, the Adviser will generally vote against the introduction of supermajority provisions and in favor of their removal.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**8."Fair Price" Amendments**

Fair price amendments are another type of charter amendment that would require an offeror to pay a "fair" and uniform price to all shareholders in an acquisition. In general, fair price amendments are designed to protect shareholders from coercive, two-tier tender offers in which some shareholders may be merged out on disadvantageous terms. Fair price amendments also have an anti-takeover impact, although their adoption is generally believed to have less of a negative effect on stock price than other anti-takeover measures. The Adviser will carefully examine all fair price proposals. In general, the Adviser will vote against fair price proposals unless the Adviser concludes that it is likely that the share price will not be negatively affected, and the proposal will not discourage acquisition proposals.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**9.Poison Pills or Shareholder Rights Plans**

Some companies have retained some version of a poison pill plan (also known as a shareholder rights plan). Poison pill plans generally provide for the issuance of additional equity securities or rights to purchase equity securities upon the occurrence of certain events the company board deems hostile, such as the acquisition of a large block of stock.

The basic argument against poison pills is that they depress share value, discourage offers for the company and serve to "entrench" management. The basic argument in favor of poison pills is that they give management more time and leverage to deal with a takeover bid and, as a result, shareholders may receive a

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better price. The Adviser believes that the potential benefits of a poison pill plan are outweighed by the potential detriments. The Adviser will generally vote against all forms of poison pills.

The Adviser will, however, consider on a case-by-case basis poison pills that are very limited in time and preclusive effect. The Adviser will generally vote in favor of such a poison pill if it is linked to a business strategy that will – in the Adviser's view – likely result in greater value for shareholders, if the term is less than three years, and if shareholder approval is required to reinstate the expired plan or adopt a new plan at the end of this term.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**10.Change in Control Agreements**

Change in control (golden parachute) agreements provide substantial compensation to executives who are terminated as a result of a takeover or change in control of their company. The existence of such plans in reasonable amounts probably has only a slight anti-takeover effect. In voting, the Adviser will evaluate the specifics of the plan presented. Features that may result in the Adviser voting against the adoption or extension of such an agreement include the following: (a) single-trigger or modified-single-trigger cash severance; (b) single-trigger acceleration of unvested equity awards; (c) excessive cash severance (greater than 3X base salary and bonus), especially when triggering adverse tax consequences for the recipient, the company, or both; (d) excise tax gross-ups triggered and payable (as opposed to a provision that provides excise tax gross-ups); (e) excessive change in control payments (on an absolute basis or as a percentage of transaction equity value; (f) recent amendments that incorporate any problematic features (such as those above) or recent actions (such as extraordinary equity grants) that may make packages so attractive as to influence merger agreements that may not be in the best interests of shareholders; or (g) the company's assertion that a proposed transaction is conditioned on shareholder approval of the change in control advisory vote.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**11.Reincorporation**

Reincorporation in a new state is often proposed as one part of a package of anti-takeover measures. Several states provide some type of legislation that greatly discourages takeovers. The Adviser will examine reincorporation proposals on a case-by-case basis.

Generally, if the Adviser believes that the reincorporation will result in greater protection from takeovers, the reincorporation proposal will be opposed. The Adviser will also generally oppose reincorporation proposals involving jurisdictions that specify that trustees can recognize non-shareholder interests over those of shareholders. When reincorporation is proposed for a legitimate business purpose and without the negative effects identified above, the Adviser will generally vote affirmatively.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**12.Confidential Voting**

Companies that have not previously adopted a "confidential voting" policy allow management to view the results of shareholder votes. This gives management the opportunity to contact those shareholders voting against management in an effort to change their votes.

Proponents of secret ballots argue that confidential voting enables shareholders to vote on all issues on the basis of merit without pressure from management to influence their decision. Opponents argue that confidential voting is more expensive and unnecessary; also, holding shares in a nominee name maintains shareholders' confidentiality. The Adviser believes that the only way to insure anonymity of votes is through confidential voting, and that the benefits of confidential voting outweigh the incremental additional cost of administering a confidential voting system. Therefore, the Adviser will generally vote in favor of any proposal to adopt confidential voting.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**13.Opting In or Out of State Takeover Laws**

State takeover laws typically are designed to make it more difficult to acquire a corporation organized in that state. The Adviser believes that the decision of whether or not to accept or reject offers of merger or acquisition should be made by the shareholders, without unreasonably restrictive state laws that may impose ownership thresholds or waiting periods on potential acquirors. Therefore, the Adviser will generally vote in favor of opting out of restrictive state takeover laws.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**E.Transaction-Related Proposals**

The Adviser will review transaction related proposals, such as mergers, acquisitions, and corporate reorganizations, on a case-by-case basis, taking into consideration the impact of the transaction on each client account. In some instances, such as the approval of a proposed merger, a transaction may have a differential impact on client accounts depending on the securities held in each account. For example, whether a merger is in the best interest of a client

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account may be influenced by whether an account holds, and in what proportion, the stock of both the acquirer and the acquiror. In these circumstances, the Adviser may determine that it is in the best interests of the accounts to vote the accounts' shares differently on proposals related to the same transaction.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**F.Other Matters**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**1.Shareholder-Sponsored Proposals**

Proposals introduced by shareholders will be evaluated for linkage between the proposal, its economic impact, and its potential to maximize long-term shareholder value. Where the economic impact of a proposal is unclear, the Adviser will generally rely on management's assessment of the proposal if the Adviser believes the assessment is reasonable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2.Anti-Greenmail Shareholder Proposals**

"Anti-greenmail" proposals generally limit the right of a corporation, without a shareholder vote, to pay a premium or buy out a 5% or greater shareholder. Management often argues that they should not be restricted from negotiating a deal to buy out a significant shareholder at a premium if they believe it is in the best interest of the company. Institutional shareholders generally believe that all shareholders should be able to vote on such a significant use of corporate assets. The Adviser believes that any repurchase by the company at a premium price of a large block of stock should be subject to a shareholder vote. Accordingly, it will generally vote in favor of anti-greenmail proposals.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**3.Trustee Tenure**

Trustee Tenure proposals ask that age and term restrictions be placed on the board of trustees. The Adviser believes that these types of blanket restrictions are not necessarily in the best interests of shareholders and therefore will consider and assess such measures as appropriate.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**4.Trustee Share Ownership**

The Adviser will generally vote against shareholder proposals that would require trustees to hold a minimum number of the company's shares to serve on the board of trustees, in the belief that such ownership should be at the discretion of board members.

**III.Securities on Loan**

The Adviser shall use commercially reasonable efforts to monitor for material proxy votes with respect to loaned securities. In the event the Adviser has timely knowledge of a material vote, the Adviser will attempt to recall the loaned securities and submit a proxy in accordance with these proxy guidelines. Efforts to recall loaned securities may not be successful and there can be no guarantee that a valid proxy will be submitted in all cases.

**IV.Use of Proxy Advisory Services**

The Adviser may retain proxy advisory firms to provide services in connection with voting proxies, including, without limitation, to provide information on shareholder meeting dates and proxy materials, translate proxy materials printed in a foreign language, provide research on proxy proposals and voting recommendations in accordance with the Policies, provide systems to assist with casting the proxy votes, and provide reports and assist with preparation of filings concerning the proxies voted.

Prior to the selection of a proxy advisory firm and periodically thereafter, the Adviser will consider whether the proxy advisory firm has the capacity and competency to adequately analyze proxy issues and the ability to make recommendations based on material, accurate information in an impartial manner. Such considerations may include some or all of the following (i) periodic sampling of votes cast through the firm's systems to determine that votes are in accordance with the Adviser's Policies and its clients' best interests, (ii) onsite visits to the proxy advisory firm's office and/or discussions with the firm to determine whether the firm continues to have the resources (*e.g.*, staffing, personnel, technology, etc.) capacity and competency to carry out its obligations to the Adviser, (iii) a review of the firm's policies and procedures, with a focus on those relating to identifying and addressing conflicts of interest and monitoring that current and accurate information is used in creating recommendations, (iv) requesting that the firm notify the Adviser if there is a change in the firm's material policies and procedures, particularly with respect to conflicts, or material business practices (*e.g.*, entering or exiting new lines of business), and reviewing any such change, and (v) in case of an error made by the firm, discussing the error with the firm and determining whether appropriate corrective and preventative action is being taken. In the event the Adviser discovers an error in the research or voting recommendations provided by the firm, it will take reasonable steps to investigate the error and seek to determine whether the firm is taking reasonable steps to reduce similar errors in the future.

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While the Adviser takes into account information from many different sources, including independent proxy advisory services, the decision on how to vote proxies will be made in accordance with these Policies.

**V.Monitoring Potential Conflicts of Interest**

The Adviser is responsible for monitoring and resolving possible conflicts between the interests of the Adviser and those of its clients with respect to proxy voting. The Adviser has adopted safeguards to address the potential that our proxy voting could be influenced by interests other than those of our fund shareholders and clients. Since our Policies are predetermined by the Adviser, application of the Policies to vote clients' proxies should in most instances adequately address any possible conflicts of interest. However, for proxy votes inconsistent with the Policies, the Adviser's Proxy Voting Committee reviews all such proxy votes to determine whether the portfolio manager's voting rationale appears reasonable and is consistent with the general principles of the Policies. The Proxy Voting Committee also assesses whether certain business or other significant relationships between the Adviser and a company could have influenced an inconsistent vote on that company's proxy. Issues raising possible conflicts of interest are referred to the Proxy Voting Committee for immediate resolution prior to the time the Adviser casts its vote. With respect to personal conflicts of interest, the Adviser's Code of Ethics requires all employees to avoid placing themselves in a compromising position where their interests may conflict with those of our clients and restricts their ability to engage in certain outside business activities. Portfolio managers and other personnel involved with proxy voting with a personal conflict of interest regarding a particular proxy vote must recuse themselves and not participate in the voting decisions with respect to that proxy.

In addition, to avoid any potential conflict of interest that may arise when the Adviser votes proxies of a fund, portfolio, or other account (Adviser-Voted Portfolio) that owns shares of an American Century fund, the Adviser will "echo vote" such shares, if possible. Echo voting means the Adviser will vote the shares in the same proportion as the vote of all the other holders of the fund's shares. So, for example, if shareholders of a fund cast 80% of their votes in favor of a proposal and 20% against the proposal, any Adviser-Voted Portfolio that owns shares of such fund will cast 80% of its shares in favor of the proposal and 20% against. When this is not possible, shares will be voted in consultation with the Adviser-Voted Portfolio client or an appropriate fiduciary responsible for the client (*e.g.*, a committee of the independent trustees of a fund or the trustee of a retirement plan).

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The Policies will be examined from time to time and may be amended by the Adviser. With respect to matters that do not fit in the categories stated above, the Adviser will exercise its best judgment as a fiduciary to vote in the manner that will most enhance shareholder value.

Case-by-case determinations will be made by the Adviser. Electronic records will be kept of all votes made.

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**Notes**

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| **American Century Investments**<br>americancentury.com |
| Financial Professionals<br>P.O. Box 419786<br>Kansas City, Missouri 64141-6786<br>833-ACI-ETFS |

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Investment Company Act File No. 811-23305

CL-SAI-93576 2602

AMERICAN CENTURY ETF TRUST

PART C OTHER INFORMATION

Item 28. Exhibits

&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Certificate of Trust, dated June 27, 2017](https://www.sec.gov/Archives/edgar/data/1710607/000171060717000020/acetft122017ex99a1certific.htm)</u> (filed electronically as Exhibit a1 to Pre-Effective Amendment No. 1 to the Registration Statement of the Registrant on December 20, 2017, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Second Amended and Restated Agreement and Declaration of Trust, dated April 19, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000127/acetft9718ex99a2secondamen.htm)</u> (filed electronically as Exhibit a2 to Post-Effective Amendment No. 8 to the Registration Statement of the Registrant on September 6, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;Schedule A to Second Amended and Restated Agreement and Declaration of Trust (to be filed by amendment)

&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Fifth Amended and Restated Bylaws, dated September 14, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000233/acetft92122ex99bfifthamend.htm)</u> (filed electronically as Exhibit b to Post-Effective Amendment No. 74 to the Registration Statement of the Registrant on September 20, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Registrant hereby incorporates by reference, as though set forth fully herein, <u>[Article III, Article IV, Article V, Article VI and Article VIII](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000127/acetft9718ex99a2secondamen.htm)</u> of Registrant's Second Amended and Restated Agreement and Declaration of Trust, appearing as Exhibit (a)(2) herein and <u>[Article II, Article VI, and Article VII](https://www.sec.gov/Archives/edgar/data/1710607/000171060719000063/acetft062519485aex99bbylaws.htm)</u> of Registrant's Amended and Restated Bylaws, appearing as Exhibit (b) herein.

&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective as of January 8, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000009/acetft1818ex99dmanagementa.htm)</u> (filed electronically as Exhibit d to Pre-Effective Amendment No. 2 to the Registration Statement of the Registrant on January 8, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 1 to Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective as of July 5, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000061/acetft2018ex99d2am1tomgmta.htm)</u> (filed electronically as Exhibit d2 to Post-Effective Amendment No. 4 to the Registration Statement of the Registrant on June 20, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 2 to Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective as of September 7, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000127/acetft9718ex99d3am2tomgmta.htm)</u> (filed electronically as Exhibit d3 to Post-Effective Amendment No. 8 to the Registration Statement of the Registrant on September 6, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 3 to Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective as of June 14, 2019](https://www.sec.gov/Archives/edgar/data/1710607/000171060719000063/acetft062519485aex99d4am3t.htm)</u> (filed electronically as Exhibit d4 to Post-Effective Amendment No. 22 to the Registration Statement of the Registrant on June 25, 2019, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(5)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 4 to Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective as of January 21, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000058/acetft11720ex99d5am4mgmtag.htm)</u> (filed electronically as Exhibit d5 to Post-Effective Amendment No. 49 to the Registration Statement of the Registrant on February 10, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(6)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 5 to Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective as of April 28, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000143/acetft6420ex99d6am5tomgmta.htm)</u>, (filed electronically as Exhibit d6 to Post-Effective Amendment No. 52 to the Registration Statement of the Registrant on June 4, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 6 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective as of November 30, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000316/acetft1121ex99d7amendmentn.htm)</u> (filed electronically as Exhibit d7 to Post-Effective Amendment No. 59 to the Registration Statement of the Registrant on December 29, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 7 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective as of April 21, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000034/acetft61821ex99d8amno7toac.htm)</u> (filed electronically as Exhibit d8 to Post-Effective Amendment No. 61 to the Registration Statement of the Registrant on June 21, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 8 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective as of June 29, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000034/acetft61821ex99d9amno8toac.htm)</u> (filed electronically as Exhibit d9 to Post-Effective

------

Amendment No. 61 to the Registration Statement of the Registrant on June 21, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(10)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 9 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective as of November 15, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000168/acetft111521ex99d10amno9to.htm)</u> (filed electronically as Exhibit d10 to Post-Effective Amendment No. 66 to the Registration Statement of the Registrant on November 12, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(11)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 10 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective October 11, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000233/acetft92122ex99d11amno10to.htm)</u> (filed electronically as Exhibit d11 to Post-Effective Amendment No. 74 to the Registration Statement of the Registrant on September 20, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(12)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 11 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective March 14, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000022/acetft31423ex99d12amno11to.htm)</u> (filed electronically as Exhibit d12 to Post-Effective Amendment No. 78 to the Registration Statement of the Registrant on March 13, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(13)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective as of September 6, 2019](https://www.sec.gov/Archives/edgar/data/1710607/000171060719000091/acetft9619ex99d5mgmtagreem.htm)</u> (filed electronically as Exhibit d5 to Post-Effective Amendment No. 25 to the Registration Statement of the Registrant on August 29, 2019, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(14)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 1 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective September 8, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000195/acetftex99d8am1tomgmtagree.htm)</u> (filed electronically as Exhibit d8 to Post-Effective Amendment No. 56 to the Registration Statement of the Registrant on September 9, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(15)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 2 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective January 1, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000316/acetft1121ex99d10amendment.htm)</u> (filed electronically as Exhibit d10 to Post-Effective Amendment No. 59 to the Registration Statement of the Registrant on December 29, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(16)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 3 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective September 16, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000114/acetft91521ex99d13amno3toa.htm)</u> (filed electronically as Exhibit d13 to Post-Effective Amendment No. 64 to the Registration Statement of the Registrant on September 15, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(17)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 4 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective January 1, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000239/acetft2022ex99d15amno4toav.htm)</u> (filed electronically as Exhibit d15 to Post-Effective Amendment No. 69 to the Registration Statement of the Registrant on December 29, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(18)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 5 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective March 8, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000072/acetft3822ex99d16am5toavan.htm)</u> (filed electronically as Exhibit d16 to Post-Effective Amendment No. 70 to the Registration Statement of the Registrant on March 7, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(19)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 6 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective September 27, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000233/acetft92122ex99d18amno6tom.htm)</u> (filed electronically as Exhibit d18 to Post-Effective Amendment No. 74 to the Registration Statement of the Registrant on September 20, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(20)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 7 to the Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective September 27, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000233/acetft92122ex99d19am7tomgm.htm)</u> (filed electronically as Exhibit d19 to Post-Effective Amendment No. 74 to the Registration Statement of the Registrant on September 20, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(21)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective June 20, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000132/acetft62223ex99d21mgmtagmt.htm)</u> (filed electronically as Exhibit d21 to Post-Effective Amendment No. 81 to the Registration Statement of the Registrant on June 21, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(22) &nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 1 to Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective June 20, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000132/acetft62223ex99d22amno1tom.htm)</u> (filed electronically as Exhibit d22 to Post-Effective Amendment No. 81 to the Registration Statement of the Registrant on June 21, 2023, File No. 333-221045, and incorporated herein by reference).

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(23)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 2 to Management Agreement between American Century ETF Trust and American Century Investment Management Inc., effective November 6, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000289/acetft11723ex99d23am2tomgm.htm)</u> (filed electronically as Exhibit d23 to Post-Effective Amendment No. 85 to the Registration Statement of the Registrant on November 6, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(24)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 3 to Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., effective January 1, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000393/acetft2024ex99d24am3tomgmt.htm)</u> (filed electronically as Exhibit d24 to Post-Effective Amendment No. 86 to the Registration Statement of the Registrant on December 29, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(25)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment N](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99d25amno4toa.htm)[o. 4 to Management Agreement between American Century ETF Trust and American Century Investment Management, Inc](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99d25amno4toa.htm)[.](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99d25amno4toa.htm)[, effective June 20](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99d25amno4toa.htm)[, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99d25amno4toa.htm)</u> (filed electronically as Exhibit d25 to Post-Effective Amendment No. 88 to the Registration Statement of the Registrant on June 18, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(26)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 5 to Management Agreement between A](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99d26am5tomgmt.htm)[merican Cen](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99d26am5tomgmt.htm)[tury ETF Trust and American C](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99d26am5tomgmt.htm)[entury Investment Management, Inc.](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99d26am5tomgmt.htm)[, dated September 23, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99d26am5tomgmt.htm)</u> (filed electronically as Exhibit d26 to Post-Effective Amendment No. 94 to the Registration Statement of the Registrant on December 27, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(27)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No.](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99d27am6tomgmt.htm)[6](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99d27am6tomgmt.htm)[to Management Agreement between American Century ETF Trust and American Century Investment Management, Inc., dated September 23, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99d27am6tomgmt.htm)</u> (filed electronically as Exhibit d27 to Post-Effective Amendment No. 94 to the Registration Statement of the Registrant on December 27, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(28)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 7 to Management Agreement](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000235/acetft7925ex99d28am7tomgmt.htm)[between American Cen](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000235/acetft7925ex99d28am7tomgmt.htm)[tury ETF Trust and American Century Investment Management, Inc., dated July 9, 2025](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000235/acetft7925ex99d28am7tomgmt.htm)</u> (filed electronically as Exhibit d28 to Post-Effective Amendment No. 97 to the Registration Statement of the Registrant on July 8, 2025, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(29)&nbsp;&nbsp;&nbsp;&nbsp;Amendment No. 8 Management Agreement between American Century ETF Trust and American Century Investment Management, Inc. (to be filed by amendment)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(30)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Manag](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetf62024ex99d26mgmtagmt.htm)[ement Agreement](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetf62024ex99d26mgmtagmt.htm)[between American Century ETF Trust and American Century Investment Management, Inc.](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetf62024ex99d26mgmtagmt.htm)[, effective June 20, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetf62024ex99d26mgmtagmt.htm)</u> (filed electronically as Exhibit d26 to Post-Effective Amendment No. 88 to the Registration Statement of the Registrant on June 18, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(31) &nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 1 to Management Agree](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99d29am1tomgmt.htm)[ment](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99d29am1tomgmt.htm)[between American Century ETF Trust and American Century](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99d29am1tomgmt.htm)[Investment Mana](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99d29am1tomgmt.htm)[gement, Inc.](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99d29am1tomgmt.htm)[,](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99d29am1tomgmt.htm)[effective](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99d29am1tomgmt.htm)[as of September 8, 2025](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99d29am1tomgmt.htm)</u> (filed electronically as Exhibit d29 to Post-Effective Amendment No. 99 to the Registration Statement of the Registrant on December 29, 2025, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(32)&nbsp;&nbsp;&nbsp;&nbsp;Amendment No. 2 to Management Agreement between American Century ETF Trust and American Century Investment Management, Inc. (to be filed by amendment)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(33)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Subadvisory Agreement between American Century Investment Management, Inc. and Nomura Corporate Research and Asset Management Inc., dated November 15, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000168/acetft111521ex99d15subadvi.htm)</u> (filed electronically as Exhibit d15 to Post-Effective Amendment No. 66 to the Registration Statement of the Registrant on November 12, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(e)&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;<u>[ETF Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, dated December 13, 2017](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000009/acetft1818ex99e1distributi.htm)</u> (filed electronically as Exhibit e1 to Pre-Effective Amendment No. 2 to the Registration Statement of the Registrant on January 8, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;<u>[First Amendment to ETF Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective April 20, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000061/acetft2018ex99e2firstamtod.htm)</u> (filed electronically as Exhibit e2 to Post-Effective Amendment No. 4 to the Registration Statement of the Registrant on June 20, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Second Amendment to ETF Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective June 5, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000061/acetft2018ex99e3secondamto.htm)</u> (filed electronically as Exhibit e3 to Post-Effective Amendment No. 4 to the Registration Statement of the Registrant on June 20, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Third Amendment to ETF Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective as of September 7, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000127/acetft9718ex99e4thirdamend.htm)</u> (filed electronically as Exhibit e4 to Post-Effective Amendment No. 8 to the Registration Statement of the Registrant on September 6, 2018, File No. 333-221045, and incorporated herein by reference).

------

&nbsp;&nbsp;&nbsp;&nbsp;(5)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Fourth Amendment to ETF Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective as of September 10, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060719000091/acetft9619ex99e5fourthamen.htm)</u> (filed electronically as Exhibit d5 to Post-Effective Amendment No. 25 to the Registration Statement of the Registrant on August 29, 2019, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(6)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Fifth Amendment to ETF Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective as of September 6, 2019](https://www.sec.gov/Archives/edgar/data/1710607/000171060719000091/acetft9619ex99e6fifthamend.htm)</u> (filed electronically as Exhibit d6 to Post-Effective Amendment No. 25 to the Registration Statement of the Registrant on August 29, 2019, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(7)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Sixth Amendment to ETF Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective as of January 21, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000058/acetft11720ex99e7sixthamto.htm)</u> (filed electronically as Exhibit e7 to Post-Effective Amendment No. 49 to the Registration Statement of the Registrant on February 10, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(8)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Seventh Amendment to ETF Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective as of April 28, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000143/acetft6420ex99e8seventhame.htm)</u> (filed electronically as Exhibit e8 to Post-Effective Amendment No. 52 to the Registration Statement of the Registrant on June 4, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(9)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Eighth Amendment to ETF Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective as of September 10, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000195/acetftex99e9eighthamendmen.htm)</u> (filed electronically as Exhibit e9 to Post-Effective Amendment No. 56 to the Registration Statement of the Registrant on September 9, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(10)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Ninth Amendment to ETF Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective as of November 30, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000316/acetft1121ex99e10ninthamen.htm)</u> (filed electronically as Exhibit e10 to Post-Effective Amendment No. 59 to the Registration Statement of the Registrant on December 29, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(11)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Tenth Amendment to ETF Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective as of June 29, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000062/acetft62921ex99e11tenthame.htm)</u> (filed electronically as Exhibit e11 to Post-Effective Amendment No. 62 to the Registration Statement of the Registrant on June 28, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(12)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective as of September 30, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000168/acetf111521ex99e12distribu.htm)</u> (filed electronically as Exhibit e12 to Post-Effective Amendment No. 66 to the Registration Statement of the Registrant on November 12, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(13)&nbsp;&nbsp;&nbsp;&nbsp;<u>[First Amendment to Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective January 1, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000239/acetft2022ex99e13firstamen.htm)</u> (filed electronically as Exhibit e13 to Post-Effective Amendment No. 69 to the Registration Statement of the Registrant on December 29, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(14)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Second Amendment to Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective March 8, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000072/acetft3822ex99e14secondame.htm)</u> (filed electronically as Exhibit e14 to Post-Effective Amendment No. 70 to the Registration Statement of the Registrant on March 7, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(15)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Third Amendment to Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective September 21, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000281/acetft101722ex99e15thirdam.htm)</u> (filed electronically as Exhibit e15 to Post-Effective Amendment No. 75 to the Registration Statement of the Registrant on October 17, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(16)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Fourth Amendment to Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective March 14, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000022/acetft31423ex99e16fourtham.htm)</u> (filed electronically as Exhibit e16 to Post-Effective Amendment No. 78 to the Registration Statement of the Registrant on March 13, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(17)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Fifth Amendment to Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective as of June 22, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000132/acetft62223ex99e17fifthame.htm)</u> (filed electronically as Exhibit e17 to Post-Effective Amendment No. 81 to the Registration Statement of the Registrant on June 21, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(18)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Sixth Amendment to Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective November 7, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000289/acetft11723ex99e18sixthamt.htm)</u> (filed electronically as Exhibit e18 to Post-Effective Amendment No. 85 to the Registration Statement of the Registrant on November 6, 2023, File No. 333-221045, and incorporated herein by reference).

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(19)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Seventh Amendment to Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective January 1, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000393/acetft2024ex99e19seventham.htm)</u>, (filed electronically as Exhibit e19 to Post-Effective Amendment No. 86 to the Registration Statement of the Registrant on December 29, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(20)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Eighth Amendment to Distribution Agreement between Ame](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99e20eightham.htm)[rican Century](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99e20eightham.htm)[ETF](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99e20eightham.htm)[Trust and Foreside Fund Services, LLC](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99e20eightham.htm)[, effective June 20, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99e20eightham.htm)</u> (filed electronically as Exhibit e20 to Post-Effective Amendment No. 88 to the Registration Statement of the Registrant on June 18, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(21)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Ninth](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000070/acetft41125ex99e21ninthamt.htm)[Amendment to Distribution Agr](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000070/acetft41125ex99e21ninthamt.htm)[eement between American Century ETF T](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000070/acetft41125ex99e21ninthamt.htm)[rust and Foreside Fund Services, LLC, effective March 25, 2025](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000070/acetft41125ex99e21ninthamt.htm)</u> (filed electronically as Exhibit e21 to Post-Effective Amendment No. 95 to the Registration Statement of the Registrant on April 11, 2025, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(22)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Te](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99e22am10todis.htm)[nth Amendment to Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC, effective](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99e22am10todis.htm)[October](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99e22am10todis.htm)[14](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99e22am10todis.htm)[, 2025](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99e22am10todis.htm)</u> (filed electronically as Exhibit e22 to Post-Effective Amendment No. 99 to the Registration Statement of the Registrant on December 29, 2025, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(23)&nbsp;&nbsp;&nbsp;&nbsp;Eleventh Amendment to Distribution Agreement between American Century ETF Trust and Foreside Fund Services, LLC (to be filed by amendment)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(24)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amended and Restated Distribution](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99e21amendeda.htm)[Agreement](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99e21amendeda.htm)[between American Century ETF Trust and American Century Investment Services, I](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99e21amendeda.htm)[nc., effective June 20, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99e21amendeda.htm)</u> (filed electronically as Exhibit e21 to Post-Effective Amendment No. 88 to the Registration Statement of the Registrant on June 18, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(25)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Form of Authorized Participant Agreement](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000009/acetft1818ex99e2formofapag.htm)</u> (filed electronically as Exhibit e2 to Pre-Effective Amendment No. 2 to the Registration Statement of the Registrant on January 8, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(26)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Form of Authorized Participant Agreement Annex](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000058/acetft11720ex99e10apagreem.htm)</u> (filed electronically as Exhibit e10 to Post-Effective Amendment No. 49 to the Registration Statement of the Registrant on February 10, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(27)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Form of Authorized Participant Representative Agreement](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000058/acetft11720ex99e11aprepres.htm)</u> (filed electronically as Exhibit e11 to Post-Effective Amendment No. 49 to the Registration Statement of the Registrant on February 10, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(28)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Form of Authorized Participant Representative Agreement (Clearing)](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000058/acetft11720ex99e12aprepres.htm)</u> (filed electronically as Exhibit e12 to Post-Effective Amendment No. 49 to the Registration Statement of the Registrant on February 10, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(f)&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.

&nbsp;&nbsp;&nbsp;&nbsp;(g)&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Master Custodian Agreement with State Street Bank and Trust Company, made as of July 29, 2011](https://www.sec.gov/Archives/edgar/data/773674/000143774911005153/ex99g2.htm)</u> (filed electronically as Exhibit g2 to Post-Effective Amendment No. 61 to the Registration Statement of American Century Government Income Trust on July 29, 2011, File No. 2-99222, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement with State Street Bank and Trust Company, made as of May 21, 2015](https://www.sec.gov/Archives/edgar/data/757928/000075792816000043/actmt2016ex99g3amendtomast.htm)</u> (filed electronically as Exhibit g3 to Post-Effective Amendment No. 57 to the Registration Statement of American Century Target Maturities Trust on January 28, 2016, File No. 002-94608, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement with State Street Bank and Trust Company, dated January 9, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000009/acetft1818ex99g3amtocustod.htm)</u> (filed electronically as Exhibit g3 to Pre-Effective Amendment No. 2 to the Registration Statement of the Registrant on January 8, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement, effective as of May 12, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000062/acetft62921ex99g4amendment.htm)</u> (filed electronically as Exhibit g4 to Post-Effective Amendment No. 62 to the Registration Statement of the Registrant on June 28, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement, effective as of September 10, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000114/acetft91521ex99g5amtocusto.htm)</u> (filed electronically as Exhibit g5 to Post-Effective Amendment No. 64 to the Registration Statement of the Registrant on September 15, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6) &nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement, effective as of January 1, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000239/acetft2022ex99g6amcustodia.htm)</u> (filed electronically as Exhibit g6 to Post-Effective Amendment No. 69 to the Registration Statement of the Registrant on December 29, 2021, File No. 333-221045, and incorporated herein by reference).

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement, effective as of March 8, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000072/acetft3822ex99g7amcustodia.htm)</u> (filed electronically as Exhibit g7 to Post-Effective Amendment No. 70 to the Registration Statement of the Registrant on March 7, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement, effective as of June 21, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000130/acetft62122ex99g8custodian.htm)</u> (filed electronically as Exhibit g8 to Post-Effective Amendment No. 72 to the Registration Statement of the Registrant on June 17, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement, effective as of September 21, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000233/acetft92122ex99g9mastercus.htm)</u> (filed electronically as Exhibit g9 to Post-Effective Amendment No. 74 to the Registration Statement of the Registrant on September 20, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(10)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement, effective as of March 14, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000022/acetft31423ex99g10amendcus.htm)</u> (filed electronically as Exhibit g10 to Post-Effective Amendment No. 78 to the Registration Statement of the Registrant on March 13, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(11)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement, effective as of May 1, 2023](https://www.sec.gov/Archives/edgar/data/814680/000081468023000043/acvp2023ex99g11amendedcust.htm)</u> (filed electronically as Exhibit g11 to Post-Effective Amendment No. 83 to the Registration Statement of American Century Variable Portfolios, Inc. on April 14, 2023, File No. 33-014567, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(12) &nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement, effective as of June 20, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000132/acetft62023ex99g11amtocust.htm)</u> (filed electronically as Exhibit g11 to Post-Effective Amendment No. 81 to the Registration Statement of the Registrant on June 21, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(13)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement, effective as of November 7, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000289/acetft11723ex99g12amtocust.htm)</u> (filed electronically as Exhibit g12 to Post-Effective Amendment No. 85 to the Registration Statement of the Registrant on November 6, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(14)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99g13amtocust.htm)[, effective June 20, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99g13amtocust.htm)</u> (filed electronically as Exhibit g13 to Post-Effective Amendment No. 88 to the Registration Statement of the Registrant on June 18, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(15)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement](https://www.sec.gov/Archives/edgar/data/872825/000087282525000033/acwmf2025ex99m15amtocustod.htm)[, effect](https://www.sec.gov/Archives/edgar/data/872825/000087282525000033/acwmf2025ex99m15amtocustod.htm)[ive March 25, 2025](https://www.sec.gov/Archives/edgar/data/872825/000087282525000033/acwmf2025ex99m15amtocustod.htm)</u> (filed electronically as Exhibit g15 to Post-Effective Amendment No. 90 to the Registration Statement of American Century World Mutual Funds, Inc. on March 28, 2025, File No. 33-39242, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(16)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment to Master Custodian Agreement, effective December 1, 2025](https://www.sec.gov/Archives/edgar/data/1293210/000129321025000158/acaap2025ex99g16amtocustod.htm)</u> (filed electronically as Exhibit g16 to Post-Effective Amendment No.60 to the Registration Statement of American Century Asset Allocation Portfolios, Inc. on November 25, 2025, File No. 333-116351, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(17)&nbsp;&nbsp;&nbsp;&nbsp;Amendment to Master Custodian Agreement (to be filed by amendment)

&nbsp;&nbsp;&nbsp;&nbsp;(h)&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Transfer Agency Agreement between State Street Bank and Trust Company and American Century Investment Management, Inc., dated January 9, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000009/acetft1818ex99h1transferag.htm)</u> (filed electronically as Exhibit h1 to Pre-Effective Amendment No. 2 to the Registration Statement of the Registrant on January 8, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;Amendment to Transfer Agency Agreement between State Street Bank and Trust Company and American Century Investment Management, Inc. (to be filed by amendment)

&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Transfer Agency Agreement between American Century ETF Trust and American Century Services, LLC, dated September 6, 2019](https://www.sec.gov/Archives/edgar/data/1710607/000171060719000091/acetft9619ex99h5transferag.htm)</u> (filed electronically as Exhibit h5 to Post-Effective Amendment No. 25 to the Registration Statement of the Registrant on August 29, 2019, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Rule 12d1-4 Fund of Funds Investment Agreement between American Century ETF Trust and MainStay Funds Trust, dated as of January 19, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000130/acetft62122ex99h4fofmainst.htm)</u> (filed electronically as Exhibit h4 to Post-Effective Amendment No. 72 to the Registration Statement of the Registrant on June 17, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 1 to Participation Agreement between American Century ETF Trust and MainStay Funds Trust, dated as of April 4, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000196/acetft81423ex99h5amno1toma.htm)</u> (filed electronically as Exhibit h5 to Post-Effective Amendment No. 82 to the Registration Statement of the Registrant on August 14, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Rule 12d1-4 Fund of Funds Investment Agreement between American Century ETF Trust and Symmetry Panoramic Trust, dated as of December 17, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000130/acetft62122ex99h5symmetryf.htm)</u> (filed electronically as Exhibit h5 to Post-Effective Amendment No. 72 to the Registration Statement of the Registrant on June 17, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Rule 12d1-4 Fund of Funds Investment Agreement between American Century ETF Trust and E-Valuator Funds Trust, dated as of January 19, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000130/acetft62122ex99h6fofe-valu.htm)</u> (filed electronically as Exhibit h6 to Post-Effective Amendment No. 72 to the

------

Registration Statement of the Registrant on June 17, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Rule 12d1-4 Fund of Funds Investment Agreement between American Century ETF Trust and Pacific Select Fund, dated as of November 1, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000311/acetft2023ex99h6fof12d1-4.htm)</u> (filed electronically as Exhibit h6 to Post-Effective Amendment No. 77 to the Registration Statement of the Registrant on December 29, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99h9amno1topa.htm)[No.](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99h9amno1topa.htm)[1 to](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99h9amno1topa.htm)[Rule 12d1-4 Fund of Funds Investment Agreement between American Century ETF Trust and Pacific Select Fund, dated as of](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99h9amno1topa.htm)[June 15, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99h9amno1topa.htm)</u> (filed electronically as Exhibit h9 to Post-Effective Amendment No. 88 to the Registration Statement of the Registrant on June 18, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(10)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99h10amno2top.htm)[No.](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99h10amno2top.htm)[2](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99h10amno2top.htm)[to Rule 12d1-4 Fund of Funds Investment Agreement between American Century ETF Trust and Pacific Select Fund, dated as of](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99h10amno2top.htm)[April 5, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99h10amno2top.htm)</u> (filed electronically as Exhibit h10 to Post-Effective Amendment No. 88 to the Registration Statement of the Registrant on June 18, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(11)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Rule 12d1-4 Fund of Funds Investment Agreement between American Century ETF Trust and Nomura Private Capital LLC, dated as of February 2, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000132/acetft62223ex99h8fofnomura.htm)</u> (filed electronically as Exhibit h8 to Post-Effective Amendment No. 81 to the Registration Statement of the Registrant on June 21, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(12)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Rule 12d1-4 Fund of Funds Investment Agreement between American Century ETF Trust and EA Seri](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000042/acetft32224ex99h10rule12d-.htm)[es Trust, dated January 2, 20](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000042/acetft32224ex99h10rule12d-.htm)[24](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000042/acetft32224ex99h10rule12d-.htm)</u> (filed electronically as Exhibit h10 to Post-Effective Amendment No. 87 to the Registration Statement of the Registrant on March 22, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(13) &nbsp;&nbsp;&nbsp;&nbsp;<u>[Rule 12d](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h12rule12d1-.htm)[1-4 Fund of Funds Investment Agreement](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h12rule12d1-.htm)[between American Centu](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h12rule12d1-.htm)[ry ETF Trust and The RBB Fund T](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h12rule12d1-.htm)[rust, dated November 5, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h12rule12d1-.htm)</u> (filed electronically as Exhibit h12 to Post-Effective Amendment No. 94 to the Registration Statement of the Registrant on December 27, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(14) &nbsp;&nbsp;&nbsp;&nbsp;<u>[Rule 12d1-4 Fund of Funds Investment Agreement between American Century ETF Trust and The](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)[Advisors](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)['](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)[Inner Circle Fund and](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)[The Advisors](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)['](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)[Inner](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)[Circle](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)[Fund II](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)[, dated](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)[Dec](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)[ember 5, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h13rule12d1-.htm)</u> (filed electronically as Exhibit h13 to Post-Effective Amendment No. 94 to the Registration Statement of the Registrant on December 27, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(15) &nbsp;&nbsp;&nbsp;&nbsp;<u>[Rule 12d1-4 Fund of Funds Investment Agreement between American Century ETF Trust and The Advisors' Inner Circle Fund and The Advisors' Inner Circle Fund II, dated December](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h14rule12d1-.htm)[6](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h14rule12d1-.htm)[, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99h14rule12d1-.htm)</u> (filed electronically as Exhibit h14 to Post-Effective Amendment No. 94 to the Registration Statement of the Registrant on December 27, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(16)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Rule 12d1-4 Fund of Funds Investment](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99h15rule12d14.htm)[Agreement between American Century ETF Trust and The RBB Fund Trust, dated November](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99h15rule12d14.htm)[6, 2025](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99h15rule12d14.htm)</u> (filed electronically as Exhibit h15 to Post-Effective Amendment No. 99 to the Registration Statement of the Registrant on December 29, 2025, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Opinion and Consent of Counsel (to be filed by amendment)

&nbsp;&nbsp;&nbsp;&nbsp;(j)&nbsp;&nbsp;&nbsp;&nbsp;Consent of Deloitte & Touche LLP, independent registered public accounting firm (to be filed by amendment)

&nbsp;&nbsp;&nbsp;&nbsp;(k)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.

&nbsp;&nbsp;&nbsp;&nbsp;(l)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <u>[Initial Capital Agreement, dated December 21, 2017](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000009/acetft1818ex99linitialcapi.htm)</u> (filed electronically as Exhibit l to Pre-Effective Amendment No. 2 to the Registration Statement of the Registrant on January 8, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(m)&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, dated January 9, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000009/acetft1818ex99mmasterdists.htm)</u> (filed electronically as Exhibit m to Pre-Effective Amendment No. 2 to the Registration Statement of the Registrant on January 8, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 1 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of July 5, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000061/acetft2018ex99m2am1to12b-1.htm)</u> (filed electronically as Exhibit m2 to Post-Effective Amendment No. 4 to the Registration Statement of the Registrant on June 20, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 2 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective September 7, 2018](https://www.sec.gov/Archives/edgar/data/1710607/000171060718000127/acetft9718ex99m3am2tomaste.htm)</u> (filed electronically as Exhibit m3 to Post-Effective Amendment No. 8 to the Registration Statement of the Registrant on September 6, 2018, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 3 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of September 6, 2019](https://www.sec.gov/Archives/edgar/data/1710607/000171060719000091/acetft9619ex99m4am3masterd.htm)</u> (filed electronically as Exhibit m4 to Post-Effective Amendment No. 25 to the

------

Registration Statement of the Registrant on August 29, 2019, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(5)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 4 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of January 21, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000058/acetft11720ex99m5am4tomast.htm)</u> (filed electronically as Exhibit m5 to Post-Effective Amendment No. 49 to the Registration Statement of the Registrant on February 10, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(6)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 5 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as April 28, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000143/acetft6420ex99m6.htm)</u> (filed electronically as Exhibit m6 to Post-Effective Amendment No. 52 to the Registration Statement of the Registrant on June 4, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(7)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 6 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of September 10, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000195/acetftex99m7am6tomasterdis.htm)</u> (filed electronically as Exhibit m7 to Post-Effective Amendment No. 56 to the Registration Statement of the Registrant on September 9, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 7 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of November 30, 2020](https://www.sec.gov/Archives/edgar/data/1710607/000171060720000316/acetft1121ex99m8masterdist.htm)</u> (filed electronically as Exhibit m8 to Post-Effective Amendment No. 59 to the Registration Statement of the Registrant on December 29, 2020, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 8 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of June 29, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000062/acetft62921ex99m9masterdis.htm)</u> (filed electronically as Exhibit m9 to Post-Effective Amendment No. 62 to the Registration Statement of the Registrant on June 28, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(10)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 9 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of November 15, 2021](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000168/acetft111521ex99m10am9toma.htm)</u> (filed electronically as Exhibit m10 to Post-Effective Amendment No. 66 to the Registration Statement of the Registrant on November 12, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(11)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 10 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of January 1, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060721000239/acetft2022ex99m11masterdis.htm)</u> (filed electronically as Exhibit m11 to Post-Effective Amendment No. 69 to the Registration Statement of the Registrant on December 29, 2021, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(12)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 11 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of March 8, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000072/acetft3822ex99m12masterdis.htm)</u> (filed electronically as Exhibit m12 to Post-Effective Amendment No. 70 to the Registration Statement of the Registrant on March 7, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(13)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 12 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of September 21, 2022](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000233/acetft92122ex99m13masterdi.htm)</u>(filed electronically as Exhibit m13 to Post-Effective Amendment No. 74 to the Registration Statement of the Registrant on September 20, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(14)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 13 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of March 14, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000022/acetft31423ex99m14masterdi.htm)</u> (filed electronically as Exhibit m14 to Post-Effective Amendment No. 78 to the Registration Statement of the Registrant on March 13, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(15) &nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 14 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of June 22, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000196/acetft81423ex99m15masterdi.htm)</u> (filed electronically as Exhibit m15 to Post-Effective Amendment No. 82 to the Registration Statement of the Registrant on August 14, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(16)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 15 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust, effective as of November 7, 2023](https://www.sec.gov/Archives/edgar/data/1710607/000171060723000289/acetft11723ex99m16masterdi.htm)</u> (filed electronically as Exhibit m16 to Post-Effective Amendment No. 85 to the Registration Statement of the Registrant on November 6, 2023, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(17)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 1](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99m17masterdi.htm)[6](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99m17masterdi.htm)[to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trus](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99m17masterdi.htm)[t, e](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99m17masterdi.htm)[ffective January 1, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99m17masterdi.htm)</u> (filed electronically as Exhibit m17 to Post-Effective Amendment No. 88 to the Registration Statement of the Registrant on June 18, 2024, File No. 333-221045, and incorporated herein by reference).

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(18)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 1](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99m18masterdi.htm)[7](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99m18masterdi.htm)[to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99m18masterdi.htm)[,](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99m18masterdi.htm)[effective June 20, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99m18masterdi.htm)</u> (filed electronically as Exhibit m18 to Post-Effective Amendment No. 88 to the Registration Statement of the Registrant on June 18, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(19)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amendment No. 18 to Master Dist](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99m19masterdis.htm)[ribution and Indiv](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99m19masterdis.htm)[idual Shareholder Services Plan of American Century ETF Trust](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99m19masterdis.htm)[, effectiv](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99m19masterdis.htm)[e as of January 1, 2025](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000204/acetft2025ex99m19masterdis.htm)</u> (filed electronically as Exhibit m19 to Post-Effective Amendment No. 94 to the Registration Statement of the Registrant on December 27, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(20)&nbsp;&nbsp;&nbsp;&nbsp;<u>[A](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99m20masterdis.htm)[mendment No. 19 to Master Distrib](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99m20masterdis.htm)[ution and Individual Shareholder Serv](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99m20masterdis.htm)[ices Plan of American](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99m20masterdis.htm)[Century ETF Trust, effective October 14, 2025](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99m20masterdis.htm)</u> (filed electronically as Exhibit m20 to Post-Effective Amendment No. 99 to the Registration Statement of the Registrant on December 29, 2025, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(21)&nbsp;&nbsp;&nbsp;&nbsp;Amendment No. 20 to Master Distribution and Individual Shareholder Services Plan of American Century ETF Trust (to be filed by amendment)

&nbsp;&nbsp;&nbsp;&nbsp;(n)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Amended and Restated Multiple Class Plan of American Century ETF Trust](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99nmultiplecl.htm)[, dated June 20, 2024](https://www.sec.gov/Archives/edgar/data/1710607/000171060724000097/acetft62024ex99nmultiplecl.htm)</u> (filed electronically as Exhibit n to Post-Effective Amendment No. 88 to the Registration Statement of the Registrant on June 18, 2024, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(o)&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.

&nbsp;&nbsp;&nbsp;&nbsp;(p)&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp; <u>[American Century Investments Code of Ethics](https://www.sec.gov/Archives/edgar/data/1710607/000171060726000023/codeofethics121725.htm)</u> (filed electronically as Exhibit p1 to Post-Effective Amendment No. 100 to the Registration Statement of the Registrant on February 2, 2026, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Independent Trustee Code of Ethics](https://www.sec.gov/Archives/edgar/data/1710607/000171060722000281/acetft101722ex99p2independ.htm)</u> (filed electronically as Exhibit p2 to Post-Effective Amendment No. 75 to the Registration Statement of the Registrant on October 17, 2022, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Nomura North American Asset Management Division Code of Ethics](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000235/acetft7925ex99p3ncramcodeo.htm)</u> (filed electronically as Exhibit p3 to Post-Effective Amendment No. 97 to the Registration Statement of the Registrant on July 8, 2025, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp; (q)&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Power of Attorney, dated](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99q1powerofatt.htm)[September 1](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99q1powerofatt.htm)[7](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99q1powerofatt.htm)[, 202](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99q1powerofatt.htm)[5](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99q1powerofatt.htm)</u> (filed electronically as Exhibit q1 to Post-Effective Amendment No. 99 to the Registration Statement of the Registrant on December 29, 2025, File No. 333-221045, and incorporated herein by reference).

&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;<u>[Secretary's Certificate,](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99q2secretaryc.htm)[dated](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99q2secretaryc.htm)[September](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99q2secretaryc.htm)[17, 2025](https://www.sec.gov/Archives/edgar/data/1710607/000171060725000314/acetft2026ex99q2secretaryc.htm)</u> (filed electronically as Exhibit q2 to Post-Effective Amendment No. 99 to the Registration Statement of the Registrant on December 29, 2025, File No. 333-221045, and incorporated herein by reference).

Item 29. &nbsp;&nbsp;&nbsp;&nbsp;Persons Controlled by or Under Common Control with Registrant.

Certain trustees of the Registrant serve, in substantially identical capacities, other registered investment companies in the American Century family of funds. In addition, certain officers of the Registrant serve as officers for other registered investment companies in the American Century family of funds, each of which has American Century Investment Management, Inc. as its investment advisor. Nonetheless, the Registrant takes the position that it is not under common control with other American Century investment companies because the power residing in the respective boards and officers arises as a result of an official position with the respective investment companies.

Item 30. Indemnification

&nbsp;&nbsp;&nbsp;&nbsp;The Registrant incorporates by reference, as though set forth fully herein, Section 7.5 and Section 7.6 of the Registrant's Second Amended and Restated Declaration of Trust appearing as Exhibit (a)(2) herein.

&nbsp;&nbsp;&nbsp;&nbsp;The Registrant has purchased an insurance policy insuring its officers and directors against certain liabilities which such officers and directors may incur while acting in such capacities and providing reimbursement to the Registrant for sums which it may be permitted or required to pay to its officers and directors by way of indemnification against such liabilities, subject in either case to clauses respecting deductibility and participation.

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

Item 31. Business and Other Connections of Investment Advisor

In addition to serving as the Registrant's investment advisor, American Century Investment Management, Inc. (ACIM) provides portfolio management services for other investment companies as well as for other business and institutional clients. Business

------

backgrounds of the directors and principal executive officers of the advisor that also hold positions with the Registrant are included under "Management" in the Statement of Additional Information included in this registration statement. The remaining principal executive officers and directors of the advisor and their principal occupations during the past 2 fiscal years are as follows:

Paul Norris (Vice President) Served as Managing Director and Head of Structured Products, Conning Asset Management, 250 Park Avenue, 15<sup>th</sup> Floor, New York, New York 10177. 2017-2023

Muting Ren (Vice President) Served as Senior Vice President, AllianceBernstein, 1345 Avenue of the Americas, New York, New York, 10105. 2017-2023

Stephen Bartolini (Vice President) Served as Portfolio Manager and Co-head of the Global Interest Rate and Currency strategy team, T. Rowe Price, 100 East Pratt Street, Baltimore, Maryland 21202. 2010-2024

Abe Riazati (Vice President) Served as Head of Investment Risk, American Equity Investment Life Insurance Company, 6000 Westown Parkway, West Des Moines, Iowa 50266. 2021-2024

The principal address for ACIM is 4500 Main Street, Kansas City, MO 64111.

Nomura Corporate Research and Asset Management Inc. (NCRAM) serves as subadvisor to American Century Select High Yield ETF. NCRAM is primarily engaged in the investment management business. Information about the officers and partners of NCRAM are included in its Form ADV filed with the Securities and Exchange Commission (registration number 801-38965) and is incorporated herein by reference.

Item 32. Principal Underwriters

&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;&nbsp;As of December 15, 2025, Foreside Fund Services, LLC (the "Distributor") serves as principal underwriter for certain series of the following investment companies registered under the Investment Company Act of 1940, as amended:

1. AB Active ETFs, Inc.

2. ABS Long/Short Strategies Fund

3. ActivePassive Core Bond ETF, Series of Trust for Professional Managers

4. ActivePassive Intermediate Municipal Bond ETF, Series of Trust for Professional Managers

5. ActivePassive International Equity ETF, Series of Trust for Professional Managers

6. ActivePassive U.S. Equity ETF, Series of Trust for Professional Managers

7. AdvisorShares Trust

8. AFA Private Credit Fund

9. AGF Investments Trust

10. AIM ETF Products Trust

11. Alexis Practical Tactical ETF, Series of Listed Funds Trust

12. AlphaCentric Prime Meridian Income Fund

13. American Century ETF Trust

14. AMG ETF Trust

15. Amplify ETF Trust

16. Applied Finance Dividend Fund, Series of World Funds Trust

17. Applied Finance Explorer Fund, Series of World Funds Trust

18. Applied Finance Select Fund, Series of World Funds Trust

19. Ardian Access LLC

20. ARK ETF Trust

21. ARK Venture Fund

22. Bitwise Funds Trust

23. BondBloxx ETF Trust

24. Bramshill Multi-Strategy Income Fund, Series of Investment Managers Series Trust

25. Bridgeway Funds, Inc.

26. Brinker Capital Destinations Trust

27. Brookfield Real Assets Income Fund Inc.

------

28. Build Funds Trust

29. Calamos Convertible and High Income Fund

30. Calamos Convertible Opportunities and Income Fund

31. Calamos Dynamic Convertible and Income Fund

32. Calamos Global Dynamic Income Fund

33. Calamos Global Total Return Fund

34. Calamos Strategic Total Return Fund

35. Carlyle Tactical Private Credit Fund

36. Cascade Private Capital Fund

37. Catalyst/Perini Strategic Income Fund

38. CBRE Global Real Estate Income Fund

39. Center Coast Brookfield MLP & Energy Infrastructure Fund

40. Clifford Capital Partners Fund, Series of World Funds Trust

41. Cliffwater Corporate Lending Fund

42. Cliffwater Enhanced Lending Fund

43. Coatue Innovative Strategies Fund

44. Cohen & Steers ETF Trust

45. Convergence Long/Short Equity ETF, Series of Trust for Professional Managers

46. CornerCap Small-Cap Value Fund, Series of Managed Portfolio Series

47. CrossingBridge Pre-Merger SPAC ETF, Series of Trust for Professional Managers

48. Curasset Capital Management Core Bond Fund, Series of World Funds Trust

49. Curasset Capital Management Limited Term Income Fund, Series of World Funds Trust

50. CYBER HORNET S&P 500<sup>®</sup> and Bitcoin 75/25 Strategy ETF, Series of CYBER HORNET Trust

51. Davis Fundamental ETF Trust

52. Defiance BMNR Option Income ETF, Series of ETF Series Solutions

53. Defiance Connective Technologies ETF, Series of ETF Series Solutions

54. Defiance Drone and Modern Warfare ETF, Series of ETF Series Solutions

55. Defiance Quantum ETF, Series of ETF Series Solutions

56. Denali Structured Return Strategy Fund

57. Dodge & Cox Funds

58. Doubleline ETF Trust

59. DoubleLine Income Solutions Fund

60. DoubleLine Opportunistic Credit Fund

61. DoubleLine Yield Opportunities Fund

62. DriveWealth ETF Trust

63. EIP Investment Trust

64. Ellington Income Opportunities Fund

65. ETF Opportunities Trust

66. Exchange Listed Funds Trust

67. Exchange Place Advisors Trust

68. FlexShares Trust

69. Fortuna Hedged Bitcoin Fund, Series of Listed Funds Trust

70. Forum Funds

71. Forum Funds II

72. Forum Real Estate Income Fund

73. Fundrise Growth Tech Fund, LLC

74. GMO ETF Trust

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75. GoldenTree Opportunistic Credit Fund

76. Gramercy Emerging Markets Debt Fund, Series of Investment Managers Series Trust

77. Grayscale Funds Trust

78. Guinness Atkinson Funds

79. Harbor ETF Trust

80. Harris Oakmark ETF Trust

81. Hawaiian Tax-Free Trust

82. Horizon Kinetics Blockchain Development ETF, Series of Listed Funds Trust

83. Horizon Kinetics Energy and Remediation ETF, Series of Listed Funds Trust

84. Horizon Kinetics Inflation Beneficiaries ETF, Series of Listed Funds Trust

85. Horizon Kinetics Japan Owner Operator ETF, Series of Listed Funds Trust

86. Horizon Kinetics Medical ETF, Series of Listed Funds Trust

87. Horizon Kinetics SPAC Active ETF, Series of Listed Funds Trust

88. Innovator ETFs Trust

89. Ironwood Institutional Multi-Strategy Fund LLC

90. Ironwood Multi-Strategy Fund LLC

91. Jensen Quality Growth ETF, Series of Trust for Professional Managers

92. John Hancock Exchange-Traded Fund Trust

93. Kurv ETF Trust

94. Lazard Active ETF Trust

95. LDR Real Estate Value-Opportunity Fund, Series of World Funds Trust

96. Mairs & Power Balanced Fund, Series of Trust for Professional Managers

97. Mairs & Power Growth Fund, Series of Trust for Professional Managers

98. Mairs & Power Minnesota Municipal Bond ETF, Series of Trust for Professional Managers

99. Mairs & Power Small Cap Fund, Series of Trust for Professional Managers

100. Manor Investment Funds

101. MoA Funds Corporation

102. Moerus Worldwide Value Fund, Series of Northern Lights Fund Trust IV

103. Morgan Stanley ETF Trust

104. Morgan Stanley Pathway Large Cap Equity ETF, Series of Morgan Stanley Pathway Funds

105. Morgan Stanley Pathway Small-Mid Cap Equity ETF, Series of Morgan Stanley Pathway Funds

106. Morningstar Funds Trust

107. NEOS ETF Trust

108. Niagara Income Opportunities Fund

109. North Square Evanston Multi-Alpha Fund

110. NXG Cushing® Midstream Energy Fund

111. NXG Infrastructure Income Fund

112. OTG Latin American Fund, Series of World Funds Trust

113. Overlay Shares Core Bond ETF, Series of Listed Funds Trust

114. Overlay Shares Foreign Equity ETF, Series of Listed Funds Trust

115. Overlay Shares Hedged Large Cap Equity ETF, Series of Listed Funds Trust

116. Overlay Shares Large Cap Equity ETF, Series of Listed Funds Trust

117. Overlay Shares Municipal Bond ETF, Series of Listed Funds Trust

118. Overlay Shares Short Term Bond ETF, Series of Listed Funds Trust

119. Overlay Shares Small Cap Equity ETF, Series of Listed Funds Trust

120. Palmer Square Funds Trust

121. Palmer Square Opportunistic Income Fund

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122. Partners Group Private Income Opportunities, LLC

123. Perkins Discovery Fund, Series of World Funds Trust

124. Philotimo Focused Growth and Income Fund, Series of World Funds Trust

125. Plan Investment Fund, Inc.

126. Point Bridge America First ETF, Series of ETF Series Solutions

127. Precidian ETFs Trust

128. Rareview 2x Bull Cryptocurrency & Precious Metals ETF, Series of Collaborative Investment Series Trust

129. Rareview Dynamic Fixed Income ETF, Series of Collaborative Investment Series Trust

130. Rareview Systematic Equity ETF, Series of Collaborative Investment Series Trust

131. Rareview Tax Advantaged Income ETF, Series of Collaborative Investment Series Trust

132. Rareview Total Return Bond ETF, Series of Collaborative Investment Series Trust

133. Renaissance Capital Greenwich Funds

134. REX ETF Trust

135. Reynolds Funds, Inc.

136. RMB Investors Trust

137. Robinson Opportunistic Income Fund, Series of Investment Managers Series Trust

138. Robinson Tax Advantaged Income Fund, Series of Investment Managers Series Trust

139. Roundhill Ball Metaverse ETF, Series of Listed Funds Trust

140. Roundhill Cannabis ETF, Series of Listed Funds Trust

141. Roundhill ETF Trust

142. Roundhill Magnificent Seven ETF, Series of Listed Funds Trust

143. Roundhill Sports Betting and iGaming ETF, Series of Listed Funds Trust

144. Roundhill Video Games ETF, Series of Listed Funds Trust

145. Rule One Fund, Series of Wold Funds Trust

146. Russell Investments Exchange Traded Funds

147. Securian AM Real Asset Income Fund, Series of Investment Managers Series Trust

148. Six Circles Trust

149. Sound Shore Fund, Inc.

150. SP Funds Trust

151. Sparrow Funds

152. Spear Alpha ETF, Series of Listed Funds Trust

153. STF Tactical Growth & Income ETF, Series of Listed Funds Trust

154. STF Tactical Growth ETF, Series of Listed Funds Trust

155. Strategic Trust

156. Strategy Shares

157. Swan Hedged Equity US Large Cap ETF, Series of Listed Funds Trust

158. Tekla World Healthcare Fund

159. Tema ETF Trust

160. The 2023 ETF Series Trust

161. The Community Development Fund

162. The Cook & Bynum Fund, Series of World Funds Trust

163. The Private Shares Fund

164. The SPAC and New Issue ETF, Series of Collaborative Investment Series Trust

165. Third Avenue Trust

166. Third Avenue Variable Series Trust

167. Tidal Trust I

168. Tidal Trust II

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169. Tidal Trust III

170. Tidal Trust IV

171. TIFF Investment Program

172. Timothy Plan High Dividend Stock ETF, Series of The Timothy Plan

173. Timothy Plan International ETF, Series of The Timothy Plan

174. Timothy Plan Market Neutral ETF, Series of The Timothy PLan

175. Timothy Plan US Large/Mid Cap Core ETF, Series of The Timothy Plan

176. Timothy Plan US Small Cap Core ETF, Series of The Timothy Plan

177. Total Fund Solution

178. Touchstone ETF Trust

179. Trailmark Series Trust

180. T-Rex 2X Inverse Bitcoin Daily Target ETF, Series of World Funds Trust

181. T-Rex 2X Inverse Ether Daily Target ETF, Series of World Funds Trust

182. T-Rex 2X Long Bitcoin Daily Target ETF, Series of World Funds Trust

183. T-Rex 2X Long Ether Daily Target ETF, Series of World Funds Trust

184. U.S. Global Investors Funds

185. Union Street Partners Value Fund, Series of World Funds Trust

186. Vest Bitcoin Strategy Managed Volatility Fund, Series of World Funds Trust

187. Vest S&P 500® Dividend Aristocrats Target Income Fund, Series of World Funds Trust

188. Vest US Large Cap 10% Buffer Strategies Fund, Series of World Funds Trust

189. Vest US Large Cap 10% Buffer VI Fund, Series of World Funds Trust

190. Vest US Large Cap 20% Buffer Strategies Fund, Series of World Funds Trust

191. Vest US Large Cap 20% Buffer VI Fund, Series of World Funds Trust

192. Virtus Stone Harbor Emerging Markets Income Fund

193. Volatility Shares Trust

194. WEBs ETF Trust

195. Wedbush Series Trust

196. Wellington Global Multi-Strategy Fund

197. Wilshire Mutual Funds, Inc.

198. Wilshire Variable Insurance Trust

199. WisdomTree Trust

200. XAI Octagon Floating Rate & Alternative Income Term Trust

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;The following are the Officers and Manager of the Distributor, the Registrant's underwriter. The Distributor's main business address is Three Canal Plaza, Suite 100, Portland, Maine 04101.

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---

| | | | |
|:---|:---|:---|:---|
| <u>Name</u> | <u>Address</u> | <u>Position with Underwriter</u> | <u>Position with Registrant</u> |
| Teresa Cowan | 190 Middle Street, Suite 301, Portland, ME 04101 | President/Manager |  |
| Chris Lanza | 190 Middle Street, Suite 301, Portland, ME 04101 | Vice President |  |
| Kate Macchia | 190 Middle Street, Suite 301, Portland, ME 04101 | Vice President |  |
| Alicia Strout | 190 Middle Street, Suite 301, Portland, ME 04101 | Vice President and Chief Compliance Officer |  |
| Gabriel Edelman | 190 Middle Street, Suite 301, Portland, ME 04101 | Secretary |  |
| Susan L. LaFond | 190 Middle Street, Suite 301, Portland, ME 04101 | Treasurer |  |
| Weston Sommers | 190 Middle Street, Suite 301, Portland, ME 04101 | Financial and Operations Principal and Chief Financial Officer |  |

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(c) American Century Investment Services, Inc. (ACIS) acts as principal underwriter for certain series of the following investment companies:

American Century Asset Allocation Portfolios, Inc.

American Century California Tax-Free and Municipal Funds

American Century Capital Portfolios, Inc.

American Century ETF Trust

American Century Government Income Trust

American Century Growth Funds, Inc.

American Century International Bond Funds

American Century Investment Trust

American Century Municipal Trust

American Century Mutual Funds, Inc.

American Century Quantitative Equity Funds, Inc.

American Century Strategic Asset Allocations, Inc.

American Century Target Maturities Trust

American Century Variable Portfolios, Inc.

American Century Variable Portfolios II, Inc.

American Century World Mutual Funds, Inc.

ACIS is registered with the Securities and Exchange Commission as a broker-dealer and is a member of the Financial Industry Regulatory Authority. ACIS is located at 4500 Main Street, Kansas City, Missouri 64111. ACIS is a wholly-owned subsidiary of American Century Companies, Inc.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The following is a list of the directors and officers of ACIS as of February 16, 2026:

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| | | |
|:---|:---|:---|
| Name and Principal<br><u>Business Address\*</u> | Positions and Offices<br><u>With Underwriter</u> | Positions and Offices<br><u>With Registrant</u> |
| Richard T. Luchinsky | Director, Chief Executive Officer and President | none |
| Brian Schappert | Director and Senior Vice President | none |

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| | | |
|:---|:---|:---|
| Name and Principal<br><u>Business Address\*</u> | Positions and Offices<br><u>With Underwriter</u> | Positions and Offices<br><u>With Registrant</u> |
| Richard Smith | Director and Senior Vice President | none |
| Michael Turner | Director and Vice President | none |
| Kevin G. Eknaian | Senior Vice President | none |
| Phillip McMinnis | Senior Vice President | none |
| John Pak | Senior Vice President, General Counsel and Assistant Secretary | Senior Vice President and General Counsel |
| Erik Schneberger | Senior Vice President | none |
| Greg Barner | Chief Privacy Officer | none |
| Carrie Caruthers | Senior AML Officer | none |
| Otis H. Cowan | Secretary | Assistant Vice President and Assistant Secretary |
| Robert Allen | Vice President | none |
| Ryan Ander | Vice President | none |
| Matthew Auer | Vice President | none |
| Stacey L. Belford | Vice President | none |
| Stacy Bernstein | Vice President | none |
| Andrew M. Billingsley | Vice President | none |
| Don Bonder | Vice President | none |
| Scott Boughton | Vice President | none |
| Bruce W. Caldwell | Vice President | none |
| Donell Chisolm | Vice President | none |
| Andrew Clark | Vice President | none |
| Robin Clooney | Vice President | none |
| Shawn Connor | Vice President | none |
| Jeffrey Cornell | Vice President | none |
| Todd Crews | Vice President | none |
| Eric Crum | Vice President | none |
| Nicolas D'Alessandro | Vice President | none |
| Jesse Daniels | Vice President | none |

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| | | |
|:---|:---|:---|
| Name and Principal<br><u>Business Address\*</u> | Positions and Offices<br><u>With Underwriter</u> | Positions and Offices<br><u>With Registrant</u> |
| Terry Daugherty | Vice President | none |
| Mario Davila | Vice President | none |
| Mark Davis | Vice President | none |
| Jennifer Debrosky | Vice President | none |
| Ivan Del Rio | Vice President | none |
| Linda Demiraj | Vice President | none |
| Ellen DeNicola | Vice President | none |
| Glenn Dial | Vice President | none |
| David P. Donovan | Vice President | none |
| Gabriel Dorman | Vice President | none |
| Ryan C. Dreier | Vice President | none |
| John Dudgeon | Vice President | none |
| Evan Duede | Vice President | none |
| Courtney Dunne | Vice President | none |
| Megan Ekleberry | Vice President | none |
| Sean Ensminger | Vice President | none |
| Gregg Erdman | Vice President | none |
| Christopher Evans | Vice President | none |
| Michael C. Galkoski | Vice President | none |
| Caroline Gaynor | Vice President | none |
| Glenn Godin | Vice President | none |
| Wendy Goodyear | Vice President | none |
| Vadim Gorin | Vice President | none |
| Timothy R. Guay | Vice President | none |
| Brett Hall | Vice President | none |
| Brett G. Hart | Vice President | none |
| Glenn Harvey | Vice President | none |

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| | | |
|:---|:---|:---|
| Name and Principal<br><u>Business Address\*</u> | Positions and Offices<br><u>With Underwriter</u> | Positions and Offices<br><u>With Registrant</u> |
| Marcela Holder | Vice President | none |
| Tom Horning | Vice President | none |
| Robert O. Houston | Vice President | none |
| Geoff Hunter | Vice President | none |
| Amanda Jacobi | Vice President | none |
| Leigh Jedeikin | Vice President | none |
| Shane Jefferson | Vice President | none |
| Alexander Jenkins | Vice President | none |
| Angela Johnson | Vice President | none |
| Wylie Kain | Vice President | none |
| Robert J. Karas | Vice President | none |
| Delia Kiely | Vice President | none |
| Matthew S. Kives | Vice President | none |
| Gary P. Kostuke | Vice President | none |
| Joshua Kurtz | Vice President | none |
| Kyle Langan | Vice President | none |
| Dennis Logan | Vice President | none |
| Daniel Lohman | Vice President | none |
| Todd Marion | Vice President | none |
| Chris Marra | Vice President | none |
| Brandon McKinzie | Vice President | none |
| Tod McMichael | Vice President | none |
| John McNamara | Vice President | none |
| Ariella Menegon | Vice President | none |
| Marek Michejda | Vice President | none |
| Sam Mielnik | Vice President | none |
| Erin Molle | Vice President | none |

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| | | |
|:---|:---|:---|
| Name and Principal<br><u>Business Address\*</u> | Positions and Offices<br><u>With Underwriter</u> | Positions and Offices<br><u>With Registrant</u> |
| Susan M. Morris | Vice President | none |
| Jennifer Mulrooney | Vice President | none |
| Brian Munn | Vice President | none |
| Michael Nelligan | Vice President | none |
| Krisha Newham | Vice President | none |
| John Nicholson | Vice President | none |
| Joseph Norton | Vice President | none |
| John E. O'Connor | Vice President | none |
| Edward Panko | Vice President | none |
| David Perkins | Vice President | none |
| Olivian Pitis | Vice President | none |
| Nathaniel Proctor | Vice President | none |
| Conor Quinn | Vice President | none |
| Blake Reardon | Vice President | none |
| Cheryl Redline | Vice President and Treasurer | none |
| Daniel K. Richardson | Vice President | none |
| Joseph Riggio Jr. | Vice President | none |
| Gerald M. Rossi | Vice President | none |
| Adam Scheve | Vice President | none |
| Brian Schweisberger | Vice President | none |
| Matthew Sennet | Vice President | none |
| Uri Shanske | Vice President | none |
| Arthur Sharplin | Vice President | none |
| Amy D. Shelton | Vice President and Chief Compliance Officer | Vice President and Chief Compliance Officer |
| Nicholas Sherrill | Vice President | none |
| Steven Silverman | Vice President | none |
| Christian Stanza | Vice President | none |

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| | | |
|:---|:---|:---|
| Name and Principal<br><u>Business Address\*</u> | Positions and Offices<br><u>With Underwriter</u> | Positions and Offices<br><u>With Registrant</u> |
| Michael T. Sullivan | Vice President | none |
| Michael Swank | Vice President | none |
| Charlie Sweeney | Vice President | none |
| Michael Swezy | Vice President | none |
| Spenser Sydow | Vice President | none |
| Jason Taylor | Vice President | none |
| Noah Tenenhaus | Vice President | none |
| Jeromey Thornton | Vice President | none |
| David Tondreault | Vice President | none |
| Greg Torretti | Vice President | none |
| Joseph Virion | Vice President | none |
| Todd Williams | Vice President | none |
| Justin Yost | Vice President | none |
| John Brereton Young | Vice President | none |
| John Zimmerman | Vice President | none |

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\* All addresses are 4500 Main Street, Kansas City, Missouri 64111.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.

Item 33. Location of Accounts and Records - Not applicable

Item 34. Management Services - Not applicable

Item 35. Undertakings - Not applicable

------

**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant has duly caused this amendment to be signed on its behalf by the undersigned, duly authorized, in the City of Kansas City, State of Missouri on the 20th day of February, 2026.

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| | |
|:---|:---|
| | **American Century ETF Trust** |
| By: | **\*<br>_________________________________** |
|  | Patrick Bannigan |
|  | President |

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Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

---

| | | |
|:---|:---|:---|
| **<u>SIGNATURES</u>** | **<u>TITLE</u>** | **<u>DATE</u>** |
| **\*<br>_____________________________** | President (principal executive officer) | February 20, 2026 |
| Patrick Bannigan |  |  |
| **\*<br>_____________________________** | Chief Financial Officer and Treasurer (principal financial officer and principal accounting officer) | February 20, 2026 |
| R. Wes Campbell |  |  |
| **\*<br>_____________________________** | Board Chair and Trustee | February 20, 2026 |
| Reginald M. Browne |  |  |
| **\*<br>_____________________________** | Trustee | February 20, 2026 |
| Jeremy I. Bulow |  |  |
| **\*<br>_____________________________** | Trustee | February 20, 2026 |
| Thomas W. Bunn |  |  |
| **\*<br>_____________________________** | Trustee | February 20, 2026 |
| Barry A. Mendelson |  |  |
| **\*<br>_____________________________** | Trustee | February 20, 2026 |
| Jonathan S. Thomas |  |  |

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| | |
|:---|:---|
| \*By: | <u>/s/ Britny Hawk</u><br>Britny Hawk<br>Attorney in Fact <br>(pursuant to Power of Attorney dated September 17, 2025) |

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| | |
|:---|:---|
| EXHIBIT <br>NUMBER | DESCRIPTION OF DOCUMENT |

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