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 S000063004 | American Century Focused Dynamic Growth ETF | ||
| Class/Contract C000204442 | American Century Focused Dynamic Growth ETF | FDG | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000063005 | American Century Focused Large Cap Value ETF | ||
| Class/Contract C000204443 | American Century Focused Large Cap Value ETF | FLV | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000063026 | American Century Diversified Municipal Bond ETF | ||
| Class/Contract C000204482 | American Century Diversified Municipal Bond ETF | TAXF | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000066454 | Avantis Emerging Markets Equity ETF | ||
| Class/Contract C000214349 | Avantis Emerging Markets Equity ETF | AVEM | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000066455 | Avantis International Small Cap Value Fund | ||
| Class/Contract C000214350 | Institutional Class | AVDVX | |
| Class/Contract C000226117 | G Class | AVANX | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000066456 | Avantis International Equity ETF | ||
| Class/Contract C000214351 | Avantis International Equity ETF | AVDE | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000066457 | Avantis International Small Cap Value ETF | ||
| Class/Contract C000214352 | Avantis International Small Cap Value ETF | AVDV | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000066458 | Avantis U.S. Equity ETF | ||
| Class/Contract C000214353 | Avantis U.S. Equity ETF | AVUS | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000066459 | Avantis U.S. Small Cap Value ETF | ||
| Class/Contract C000214354 | Avantis U.S. Small Cap Value ETF | AVUV | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000066460 | Avantis U.S. Equity Fund | ||
| Class/Contract C000214355 | Institutional Class | AVUSX | |
| Class/Contract C000226118 | G Class | AVUNX | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000066461 | Avantis U.S. Small Cap Value Fund | ||
| Class/Contract C000214356 | Institutional Class | AVUVX | |
| Class/Contract C000226119 | G Class | AVCNX | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000066462 | Avantis Emerging Markets Equity Fund | ||
| Class/Contract C000214357 | Institutional Class | AVEEX | |
| Class/Contract C000226120 | G Class | AVENX | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000066463 | Avantis International Equity Fund | ||
| Class/Contract C000214358 | Institutional Class | AVDEX | |
| Class/Contract C000226121 | G Class | AVDNX | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000068306 | American Century Mid Cap Growth Impact ETF | ||
| Class/Contract C000218645 | American Century Mid Cap Growth Impact ETF | MID | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000068307 | American Century Sustainable Equity ETF | ||
| Class/Contract C000218646 | American Century Sustainable Equity ETF | ESGA | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000069304 | Avantis Core Fixed Income ETF | ||
| Class/Contract C000221278 | Avantis Core Fixed Income ETF | AVIG | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000069305 | Avantis Core Municipal Fixed Income ETF | ||
| Class/Contract C000221279 | Avantis Core Municipal Fixed Income ETF | AVMU | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000069306 | Avantis Short-Term Fixed Income ETF | ||
| Class/Contract C000221280 | Avantis Short-Term Fixed Income ETF | AVSF | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000069307 | Avantis Core Fixed Income Fund | ||
| Class/Contract C000221281 | Institutional Class | AVIGX | |
| Class/Contract C000226122 | G Class | AVBNX | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000069308 | Avantis Core Municipal Fixed Income Fund | ||
| Class/Contract C000221282 | Institutional Class | AVMUX | |
| Class/Contract C000226123 | G Class | AVFNX | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000069309 | Avantis Short-Term Fixed Income Fund | ||
| Class/Contract C000221283 | Institutional Class | AVSFX | |
| Class/Contract C000226124 | G Class | AVGNX | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000070039 | American Century Low Volatility ETF | ||
| Class/Contract C000222947 | American Century Low Volatility ETF | LVOL | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000070040 | American Century Quality Convertible Securities ETF | ||
| Class/Contract C000222948 | American Century Quality Convertible Securities ETF | QCON | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000070041 | American Century Quality Preferred ETF | ||
| Class/Contract C000222949 | American Century Quality Preferred ETF | QPFF | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000072410 | American Century Multisector Income ETF | ||
| Class/Contract C000228610 | American Century Multisector Income ETF | MUSI | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000072411 | American Century Emerging Markets Bond ETF | ||
| Class/Contract C000228611 | American Century Emerging Markets Bond ETF | AEMB | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000072412 | American Century Sustainable Growth ETF | ||
| Class/Contract C000228612 | American Century Sustainable Growth ETF | ESGY | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000072996 | Avantis Emerging Markets Value ETF | ||
| Class/Contract C000229745 | Avantis Emerging Markets Value ETF | AVES | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000072997 | Avantis International Large Cap Value ETF | ||
| Class/Contract C000229746 | Avantis International Large Cap Value ETF | AVIV | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000072998 | Avantis U.S. Large Cap Value ETF | ||
| Class/Contract C000229747 | Avantis U.S. Large Cap Value ETF | AVLV | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000072999 | Avantis Real Estate ETF | ||
| Class/Contract C000229748 | Avantis Real Estate ETF | AVRE | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000074150 | American Century Select High Yield ETF | ||
| Class/Contract C000231722 | American Century Select High Yield ETF | AHYB | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000074835 | Avantis U.S. Small Cap Equity ETF | ||
| Class/Contract C000233056 | Avantis U.S. Small Cap Equity ETF | AVSC | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000075381 | Avantis Responsible Emerging Markets Equity ETF | ||
| Class/Contract C000234360 | Avantis Responsible Emerging Markets Equity ETF | AVSE | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000075382 | Avantis Responsible International Equity ETF | ||
| Class/Contract C000234361 | Avantis Responsible International Equity ETF | AVSD | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000075383 | Avantis Responsible U.S. Equity ETF | ||
| Class/Contract C000234362 | Avantis Responsible U.S. Equity ETF | AVSU | |
| Status | Name | Ticker Symbol | |
| CIK 0001710607 | |||
| Series S000076521 | Avantis U.S. Large Cap Value Fund | ||
| Class/Contract C000236476 | Institutional Class | ALCDX | |
| Class/Contract C000236477 | G Class | ALCEX | |
IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 0831
Type: N-CSR | Act: 40 | File No.: 811-23305 | Film No.: 221331853
