# EDGAR Filing Document

**Accession Number:** 0001353176
**File Stem:** 0001710607-26-000044
**Filing Date:** 2026-3
**Character Count:** 8935
**Document Hash:** 992b823f188de9bed44ecdc1cb321036
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001710607-26-000044.hdr.sgml**: 20260306

**ACCESSION NUMBER**: 0001710607-26-000044

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260306

**DATE AS OF CHANGE**: 20260306

**EFFECTIVENESS DATE**: 20260306

**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:** 26731813

**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 GROWTH FUNDS, INC.
- **CENTRAL INDEX KEY:** 0001353176

**ORGANIZATION NAME:**
- **EIN:** 204223518
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 0731

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-132114
- **FILM NUMBER:** 26731814

**BUSINESS ADDRESS:**
- **STREET 1:** 4500 MAIN STREET
- **STREET 2:** 9TH FLOOR
- **CITY:** KANSAS CITY
- **STATE:** MO
- **ZIP:** 64111
- **BUSINESS PHONE:** 816-531-5575

**MAIL ADDRESS:**
- **STREET 1:** 4500 MAIN STREET
- **STREET 2:** 9TH FLOOR
- **CITY:** KANSAS CITY
- **STATE:** MO
- **ZIP:** 64111

## Series and Classes Contracts Data

### FOCUSED DYNAMIC GROWTH FUND (Series ID: S000012177)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| INVESTOR CLASS | ACFOX         | C000033214 |
| I CLASS        | ACFSX         | C000033215 |
| A CLASS        | ACFDX         | C000033216 |
| R CLASS        | ACFCX         | C000033217 |
| R6 Class       | ACFNX         | C000174988 |
| G Class        | ACFGX         | C000212516 |

---

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

---

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

---

## Series and Classes Contracts Data

### FOCUSED DYNAMIC GROWTH FUND (Series ID: S000012177)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000033214 | INVESTOR CLASS | ACFOX           |
| C000033215 | I CLASS        | ACFSX           |
| C000033216 | A CLASS        | ACFDX           |
| C000033217 | R CLASS        | ACFCX           |
| C000174988 | R6 Class       | ACFNX           |
| C000212516 | G Class        | ACFGX           |

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

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

---

| | |
|:---|:---|
| **Statement of Additional Information (SAI) Supplement**<br>**American Century**<sup>®</sup> **Focused Dynamic Growth ETF**<br>SAI dated January 1, 2025<br>**Focused Dynamic Growth Fund**<br>SAI dated December 1, 2025 | ![aci_horizxrgbxblackcropped.jpg](aci_horizxrgbxblackcropped.jpg) |
| Supplement dated March 7, 2026 | Supplement dated March 7, 2026 |

---

*Henry He, CFA, Vice President and Portfolio Manager, will no longer serve as portfolio manager for the funds effective March 31, 2026.*

*The following entry is added for Yeon Hee Oh in the* Accounts Managed *table on pages 24-25 of the American Century ETF Trust SAI effective March 15, 2026:*

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Accounts Managed** | **Accounts Managed** | **Accounts Managed** | | |
|  |  | *Registered Investment*<br>*Companies (e.g., American Century Investments funds and American Century Investments- subadvised funds)*  | *Other Pooled Investment Vehicles (e.g., commingled*<br>*trusts and 529 education savings plans)*  | *Other Accounts (e.g., separate accounts and*<br>*corporate accounts*<br>*including incubation*<br>*strategies and*<br>*corporate money)*  |
| Yeon Hee Oh<sup>1</sup> | Number of Accounts | 2 | 2 | 1 |
| Yeon Hee Oh<sup>1</sup> | Assets | $2.3 billion<sup>2</sup> | $302.9 million | $763.9 thousand |

---

<sup>1</sup> *Information provided as of February 27, 2026.*

<sup>2</sup> *Includes $340.3 million in American Century Focused Dynamic Growth ETF.* 

*The following entry is added for Yeon Hee Oh in the* Ownership of Securities *table on page 27 of the American Century ETF Trust SAI effective March 15, 2026:*

---

| | |
|:---|:---|
| **Ownership of Securities** | |
| | **Aggregate Dollar Range of Securities in Fund** |
| **American Century Focused Dynamic Growth ETF** | |
| Yeon Hee Oh<sup>1</sup> | A |

---

*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.*

<sup>1</sup> *Information provided as of February 27, 2026.*

------

*The following entry is added for Yeon Hee Oh in the* Accounts Managed *table on page 29 of the American Century Growth Funds, Inc. SAI effective March 15, 2026:*

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Accounts Managed** | **Accounts Managed** | **Accounts Managed** | | |
|  |  | *Registered Investment*<br>*Companies (e.g., American Century Investments funds and American Century Investments- subadvised funds)*  | *Other Pooled Investment Vehicles (e.g., commingled*<br>*trusts and 529 education savings plans)*  | *Other Accounts (e.g., separate accounts and*<br>*corporate accounts*<br>*including incubation*<br>*strategies and*<br>*corporate money)*  |
| Yeon Hee Oh<sup>1</sup> | Number of Accounts | 2 | 2 | 1 |
| Yeon Hee Oh<sup>1</sup> | Assets | $2.3 billion<sup>2</sup> | $302.9 million | $763.9 thousand |

---

<sup>1</sup> *Information provided as of February 27, 2026.*

<sup>2</sup> *Includes $1.9 billion in Focused Dynamic Growth Fund.* 

*The following entry is added for Yeon Hee Oh in the* Ownership of Securities *table on page 31 of the American Century Growth Funds, Inc. SAI effective March 15, 2026:*

---

| | |
|:---|:---|
| **Ownership of Securities** | |
| | **Aggregate Dollar Range of Securities in Fund** |
| **Focused Dynamic Growth** | |
| Yeon Hee Oh<sup>1</sup> | A |

---

*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.*

<sup>1</sup> *Information provided as of February 27, 2026.*

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

CL-SPL-98862 2603

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