# EDGAR Filing Document

**Accession Number:** 0001710607
**File Stem:** 0001710607-26-000062
**Filing Date:** 2026-3
**Character Count:** 14831
**Document Hash:** cc0a162ff0ccdf9e1695bf51853fd256
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001710607-26-000062.hdr.sgml**: 20260320

**ACCESSION NUMBER**: 0001710607-26-000062

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260320

**DATE AS OF CHANGE**: 20260320

**EFFECTIVENESS DATE**: 20260320

**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:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-221045
- **FILM NUMBER:** 26777089

**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

## Series and Classes Contracts Data

### American Century Diversified Corporate Bond ETF (Series ID: S000060785)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                      | Ticker Symbol | Class ID   |
| American Century Diversified Corporate Bond ETF | KORP          | C000197601 |

---

### American Century U.S. Quality Value ETF (Series ID: S000060786)

---

|  |  |  |
|:---|:---|:---|
| Class Name                              | Ticker Symbol | Class ID   |
| American Century U.S. Quality Value ETF | VALQ          | C000197602 |

---

### American Century Quality Diversified International ETF (Series ID: S000062301)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                             | Ticker Symbol | Class ID   |
| American Century Quality Diversified International ETF | QINT          | C000202058 |

---

### American Century U.S. Quality Growth ETF (Series ID: S000062302)

---

|  |  |  |
|:---|:---|:---|
| Class Name                               | Ticker Symbol | Class ID   |
| American Century U.S. Quality Growth ETF | QGRO          | C000202059 |

---

### American Century Focused Dynamic Growth ETF (Series ID: S000063004)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                  | Ticker Symbol | Class ID   |
| American Century Focused Dynamic Growth ETF | FDG           | C000204442 |

---

### American Century Focused Large Cap Value ETF (Series ID: S000063005)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                   | Ticker Symbol | Class ID   |
| American Century Focused Large Cap Value ETF | FLV           | C000204443 |

---

### American Century Diversified Municipal Bond ETF (Series ID: S000063026)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                      | Ticker Symbol | Class ID   |
| American Century Diversified Municipal Bond ETF | TAXF          | C000204482 |

---

### American Century Mid Cap Growth Impact ETF (Series ID: S000068306)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                 | Ticker Symbol | Class ID   |
| American Century Mid Cap Growth Impact ETF | MID           | C000218645 |

---

### American Century Large Cap Equity ETF (Series ID: S000068307)

---

|  |  |  |
|:---|:---|:---|
| Class Name                            | Ticker Symbol | Class ID   |
| American Century Large Cap Equity ETF | ACLC          | C000218646 |

---

### American Century Multisector Income ETF (Series ID: S000072410)

---

|  |  |  |
|:---|:---|:---|
| Class Name                              | Ticker Symbol | Class ID   |
| American Century Multisector Income ETF | MUSI          | C000228610 |

---

### American Century Large Cap Growth ETF (Series ID: S000072412)

---

|  |  |  |
|:---|:---|:---|
| Class Name                            | Ticker Symbol | Class ID   |
| American Century Large Cap Growth ETF | ACGR          | C000228612 |

---

### American Century Select High Yield ETF (Series ID: S000074150)

---

|  |  |  |
|:---|:---|:---|
| Class Name                             | Ticker Symbol | Class ID   |
| American Century Select High Yield ETF | AHYB          | C000231722 |

---

### American Century Short Duration Strategic Income ETF (Series ID: S000077487)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                           | Ticker Symbol | Class ID   |
| American Century Short Duration Strategic Income ETF | SDSI          | C000237948 |

---

### American Century Multisector Floating Income ETF (Series ID: S000079797)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                       | Ticker Symbol | Class ID   |
| American Century Multisector Floating Income ETF | FUSI          | C000241171 |

---

### American Century California Municipal Bond ETF (Series ID: S000085330)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                     | Ticker Symbol | Class ID   |
| American Century California Municipal Bond ETF | CATF          | C000250325 |

---

### American Century Small Cap Value Insights ETF (Series ID: S000093802)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                    | Ticker Symbol | Class ID   |
| American Century Small Cap Value Insights ETF | ACSV          | C000262250 |

---

### American Century Small Cap Growth Insights ETF (Series ID: S000093803)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                     | Ticker Symbol | Class ID   |
| American Century Small Cap Growth Insights ETF | ACSG          | C000262251 |

---

## Series and Classes Contracts Data

### American Century Diversified Corporate Bond ETF (Series ID: S000060785)

| Class ID   | Class Name                                      | Ticker Symbol   |
|:---|:---|:---|
| C000197601 | American Century Diversified Corporate Bond ETF | KORP            |

### American Century U.S. Quality Value ETF (Series ID: S000060786)

| Class ID   | Class Name                              | Ticker Symbol   |
|:---|:---|:---|
| C000197602 | American Century U.S. Quality Value ETF | VALQ            |

### American Century Quality Diversified International ETF (Series ID: S000062301)

| Class ID   | Class Name                                             | Ticker Symbol   |
|:---|:---|:---|
| C000202058 | American Century Quality Diversified International ETF | QINT            |

### American Century U.S. Quality Growth ETF (Series ID: S000062302)

| Class ID   | Class Name                               | Ticker Symbol   |
|:---|:---|:---|
| C000202059 | American Century U.S. Quality Growth ETF | QGRO            |

### American Century Focused Dynamic Growth ETF (Series ID: S000063004)

| Class ID   | Class Name                                  | Ticker Symbol   |
|:---|:---|:---|
| C000204442 | American Century Focused Dynamic Growth ETF | FDG             |

### American Century Focused Large Cap Value ETF (Series ID: S000063005)

| Class ID   | Class Name                                   | Ticker Symbol   |
|:---|:---|:---|
| C000204443 | American Century Focused Large Cap Value ETF | FLV             |

### American Century Diversified Municipal Bond ETF (Series ID: S000063026)

| Class ID   | Class Name                                      | Ticker Symbol   |
|:---|:---|:---|
| C000204482 | American Century Diversified Municipal Bond ETF | TAXF            |

### American Century Mid Cap Growth Impact ETF (Series ID: S000068306)

| Class ID   | Class Name                                 | Ticker Symbol   |
|:---|:---|:---|
| C000218645 | American Century Mid Cap Growth Impact ETF | MID             |

### American Century Large Cap Equity ETF (Series ID: S000068307)

| Class ID   | Class Name                            | Ticker Symbol   |
|:---|:---|:---|
| C000218646 | American Century Large Cap Equity ETF | ACLC            |

### American Century Multisector Income ETF (Series ID: S000072410)

| Class ID   | Class Name                              | Ticker Symbol   |
|:---|:---|:---|
| C000228610 | American Century Multisector Income ETF | MUSI            |

### American Century Large Cap Growth ETF (Series ID: S000072412)

| Class ID   | Class Name                            | Ticker Symbol   |
|:---|:---|:---|
| C000228612 | American Century Large Cap Growth ETF | ACGR            |

### American Century Select High Yield ETF (Series ID: S000074150)

| Class ID   | Class Name                             | Ticker Symbol   |
|:---|:---|:---|
| C000231722 | American Century Select High Yield ETF | AHYB            |

### American Century Short Duration Strategic Income ETF (Series ID: S000077487)

| Class ID   | Class Name                                           | Ticker Symbol   |
|:---|:---|:---|
| C000237948 | American Century Short Duration Strategic Income ETF | SDSI            |

### American Century Multisector Floating Income ETF (Series ID: S000079797)

| Class ID   | Class Name                                       | Ticker Symbol   |
|:---|:---|:---|
| C000241171 | American Century Multisector Floating Income ETF | FUSI            |

### American Century California Municipal Bond ETF (Series ID: S000085330)

| Class ID   | Class Name                                     | Ticker Symbol   |
|:---|:---|:---|
| C000250325 | American Century California Municipal Bond ETF | CATF            |

### American Century Small Cap Value Insights ETF (Series ID: S000093802)

| Class ID   | Class Name                                    | Ticker Symbol   |
|:---|:---|:---|
| C000262250 | American Century Small Cap Value Insights ETF | ACSV            |

### American Century Small Cap Growth Insights ETF (Series ID: S000093803)

| Class ID   | Class Name                                     | Ticker Symbol   |
|:---|:---|:---|
| C000262251 | American Century Small Cap Growth Insights ETF | ACSG            |

---

| | |
|:---|:---|
| American Century ETF Trust<br>**Statement of Additional Information (SAI) Supplement**<br>**American Century**<sup>®</sup> **California Municipal Bond ETF**<br>**American Century**<sup>®</sup> **Diversified Corporate Bond ETF**<br>**American Century**<sup>®</sup> **Diversified Municipal Bond ETF**<br>**American Century**<sup>®</sup> **Multisector Floating Income ETF**<br>**American Century**<sup>®</sup> **Multisector Income ETF**<br>**American Century**<sup>®</sup> **Quality Diversified International ETF**<br>**American Century**<sup>®</sup> **Select High Yield ETF**<br>**American Century**<sup>®</sup> **Short Duration Strategic Income ETF**<br>**American Century**<sup>®</sup> **Small Cap Growth Insights ETF**<br>**American Century**<sup>®</sup> **Small Cap Value Insights ETF**<br>**American Century**<sup>®</sup> **U.S. Quality Growth ETF**<br>**American Century**<sup>®</sup> **U.S. Quality Value ETF**<br>SAI dated January 1, 2026<br>**American Century**<sup>®</sup> **Focused Dynamic Growth ETF**<br>**American Century**<sup>®</sup> **Focused Large Cap Value ETF**<br>**American Century**<sup>®</sup> **Large Cap Equity ETF**<br>**American Century**<sup>®</sup> **Large Cap Growth ETF**<br>**American Century**<sup>®</sup> **Mid Cap Growth Impact ETF**<br>SAI dated January 1, 2026 | ![aci_horizxrgbxblackcropped.jpg](aci_horizxrgbxblackcropped.jpg) |
| Supplement dated March 21, 2026 | Supplement dated March 21, 2026 |

---

*The following replaces the first two paragraphs of the* Costs Associated with Creation Transactions *section of the SAI:*

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. 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. Circumstances in which a fund may waive transaction fees include, but are not limited to, portfolio rebalance transactions and transactions initiated for portfolio cash management purposes.

*The following replaces the first two paragraphs of the* Costs Associated with Redemption Transactions *in the* Redemption of Creation Units *section of the SAI:*

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. Circumstances in which a fund may waive transaction fees include, but are not limited to, portfolio rebalance transactions and transactions initiated for portfolio cash management purposes.

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

CL-SPL-98872 2603

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