Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000060785 | American Century Diversified Corporate Bond ETF | ||
| Class/Contract C000197601 | American Century Diversified Corporate Bond ETF | KORP | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000060786 | American Century STOXX U.S. Quality Value ETF | ||
| Class/Contract C000197602 | American Century STOXX U.S. Quality Value ETF | VALQ | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000062301 | American Century Quality Diversified International ETF | ||
| Class/Contract C000202058 | American Century Quality Diversified International ETF | QINT | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000062302 | American Century STOXX U.S. Quality Growth ETF | ||
| Class/Contract C000202059 | American Century STOXX U.S. Quality Growth ETF | QGRO | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000063026 | American Century Diversified Municipal Bond ETF | ||
| Class/Contract C000204482 | American Century Diversified Municipal Bond ETF | TAXF | |
IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 0831
Type: N-CEN | Act: 40 | File No.: 811-23305 | Film No.: 191195983