# EDGAR Filing Document

**Accession Number:** 0000908406
**File Stem:** 0000908406-23-000025
**Filing Date:** 2023-2
**Character Count:** 11367
**Document Hash:** 5c5770fc5522f36e2da1a54212667b18
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000908406-23-000025.hdr.sgml**: 20230213

**ACCESSION NUMBER**: 0000908406-23-000025

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20230213

**DATE AS OF CHANGE**: 20230213

**EFFECTIVENESS DATE**: 20230213

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AMERICAN CENTURY INVESTMENT TRUST
- **CENTRAL INDEX KEY:** 0000908406
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-65170
- **FILM NUMBER:** 23615671

**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:** BENHAM INVESTMENT TRUST
- **DATE OF NAME CHANGE:** 19930629

## Series and Classes Contracts Data

### DIVERSIFIED BOND FUND (Series ID: S000006579)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| INVESTOR CLASS | ADFIX         | C000017955 |
| A CLASS        | ADFAX         | C000017956 |
| I CLASS        | ACBPX         | C000017957 |
| C CLASS        | CDBCX         | C000017960 |
| R CLASS        | ADVRX         | C000017961 |
| R6 CLASS       | ADDVX         | C000131613 |
| Y CLASS        | ADVYX         | C000189684 |
| R5 CLASS       | ADRVX         | C000189686 |
| G CLASS        | ACDOX         | C000237256 |

---

### HIGH-YIELD FUND (Series ID: S000006580)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| INVESTOR CLASS | ABHIX         | C000017962 |
| A CLASS        | AHYVX         | C000017963 |
| R5 CLASS       | ACYIX         | C000017964 |
| C CLASS        | AHDCX         | C000017967 |
| R CLASS        | AHYRX         | C000017968 |
| R6 CLASS       | AHYDX         | C000131614 |
| I CLASS        | AHYHX         | C000189687 |
| Y CLASS        | AHYLX         | C000189688 |

---

### SHORT DURATION INFLATION PROTECTION BOND FUND (Series ID: S000006581)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| INVESTOR CLASS | APOIX         | C000017969 |
| R5 CLASS       | APISX         | C000017970 |
| A CLASS        | APOAX         | C000017971 |
| C CLASS        | APOCX         | C000017973 |
| R CLASS        | APORX         | C000017974 |
| R6 CLASS       | APODX         | C000131615 |
| I CLASS        | APOHX         | C000189689 |
| Y CLASS        | APOYX         | C000189690 |
| G CLASS        | APOGX         | C000194391 |

---

### U.S. GOVERNMENT MONEY MARKET FUND (Series ID: S000006582)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| INVESTOR CLASS | TCRXX         | C000017975 |
| A CLASS        | AGQXX         | C000162988 |
| C CLASS        | AGHXX         | C000162989 |
| G CLASS        | AGGXX         | C000194392 |

---

### PRIME MONEY MARKET FUND (Series ID: S000006583)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| INVESTOR CLASS | BPRXX         | C000017976 |
| A CLASS        | ACAXX         | C000017977 |
| C CLASS        | ARCXX         | C000017980 |

---

### CORE PLUS FUND (Series ID: S000014384)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| INVESTOR CLASS | ACCNX         | C000039168 |
| R5 CLASS       | ACCUX         | C000039169 |
| A CLASS        | ACCQX         | C000039170 |
| C CLASS        | ACCKX         | C000039172 |
| R CLASS        | ACCPX         | C000039173 |
| I CLASS        | ACCTX         | C000189691 |
| G CLASS        | ACCYX         | C000222299 |

---

### SHORT DURATION FUND (Series ID: S000014385)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| C CLASS        | ACSKX         | C000039175 |
| R CLASS        | ACSPX         | C000039176 |
| INVESTOR CLASS | ACSNX         | C000039177 |
| R5 CLASS       | ACSUX         | C000039178 |
| A CLASS        | ACSQX         | C000039179 |
| I CLASS        | ASHHX         | C000189692 |
| R6 CLASS       | ASDDX         | C000194393 |
| G CLASS        | ASDOX         | C000224786 |

---

### SHORT DURATION STRATEGIC INCOME FUND (Series ID: S000046093)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| INVESTOR CLASS | ASDVX         | C000144162 |
| R5 CLASS       | ASDJX         | C000144163 |
| A CLASS        | ASADX         | C000144164 |
| C CLASS        | ASCDX         | C000144165 |
| R CLASS        | ASDRX         | C000144166 |
| R6 CLASS       | ASXDX         | C000144167 |
| I CLASS        | ASDHX         | C000189693 |
| Y CLASS        | ASYDX         | C000189694 |

---

### MULTISECTOR INCOME FUND (Series ID: S000046094)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| C CLASS        | ASIHX         | C000144168 |
| R CLASS        | ASIWX         | C000144169 |
| R6 CLASS       | ASIPX         | C000144170 |
| INVESTOR CLASS | ASIEX         | C000144171 |
| R5 CLASS       | ASIJX         | C000144172 |
| A CLASS        | ASIQX         | C000144173 |
| I CLASS        | ASIGX         | C000189695 |
| Y CLASS        | ASYIX         | C000189696 |

---

### HIGH INCOME FUND (Series ID: S000058290)

---

|  |  |  |
|:---|:---|:---|
| Class Name     | Ticker Symbol | Class ID   |
| INVESTOR CLASS | AHIVX         | C000191071 |
| I CLASS        | AHIIX         | C000191072 |
| Y CLASS        | NPHIX         | C000191073 |
| A CLASS        | AHIAX         | C000191074 |
| R5 CLASS       | AHIEX         | C000191075 |
| R6 CLASS       | AHIDX         | C000191076 |
| G CLASS        | ACHFX         | C000237257 |

---

## Series and Classes Contracts Data

### DIVERSIFIED BOND FUND (Series ID: S000006579)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000017955 | INVESTOR CLASS | ADFIX           |
| C000017956 | A CLASS        | ADFAX           |
| C000017957 | I CLASS        | ACBPX           |
| C000017960 | C CLASS        | CDBCX           |
| C000017961 | R CLASS        | ADVRX           |
| C000131613 | R6 CLASS       | ADDVX           |
| C000189684 | Y CLASS        | ADVYX           |
| C000189686 | R5 CLASS       | ADRVX           |
| C000237256 | G CLASS        | ACDOX           |

### HIGH-YIELD FUND (Series ID: S000006580)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000017962 | INVESTOR CLASS | ABHIX           |
| C000017963 | A CLASS        | AHYVX           |
| C000017964 | R5 CLASS       | ACYIX           |
| C000017967 | C CLASS        | AHDCX           |
| C000017968 | R CLASS        | AHYRX           |
| C000131614 | R6 CLASS       | AHYDX           |
| C000189687 | I CLASS        | AHYHX           |
| C000189688 | Y CLASS        | AHYLX           |

### SHORT DURATION INFLATION PROTECTION BOND FUND (Series ID: S000006581)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000017969 | INVESTOR CLASS | APOIX           |
| C000017970 | R5 CLASS       | APISX           |
| C000017971 | A CLASS        | APOAX           |
| C000017973 | C CLASS        | APOCX           |
| C000017974 | R CLASS        | APORX           |
| C000131615 | R6 CLASS       | APODX           |
| C000189689 | I CLASS        | APOHX           |
| C000189690 | Y CLASS        | APOYX           |
| C000194391 | G CLASS        | APOGX           |

### U.S. GOVERNMENT MONEY MARKET FUND (Series ID: S000006582)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000017975 | INVESTOR CLASS | TCRXX           |
| C000162988 | A CLASS        | AGQXX           |
| C000162989 | C CLASS        | AGHXX           |
| C000194392 | G CLASS        | AGGXX           |

### PRIME MONEY MARKET FUND (Series ID: S000006583)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000017976 | INVESTOR CLASS | BPRXX           |
| C000017977 | A CLASS        | ACAXX           |
| C000017980 | C CLASS        | ARCXX           |

### CORE PLUS FUND (Series ID: S000014384)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000039168 | INVESTOR CLASS | ACCNX           |
| C000039169 | R5 CLASS       | ACCUX           |
| C000039170 | A CLASS        | ACCQX           |
| C000039172 | C CLASS        | ACCKX           |
| C000039173 | R CLASS        | ACCPX           |
| C000189691 | I CLASS        | ACCTX           |
| C000222299 | G CLASS        | ACCYX           |

### SHORT DURATION FUND (Series ID: S000014385)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000039175 | C CLASS        | ACSKX           |
| C000039176 | R CLASS        | ACSPX           |
| C000039177 | INVESTOR CLASS | ACSNX           |
| C000039178 | R5 CLASS       | ACSUX           |
| C000039179 | A CLASS        | ACSQX           |
| C000189692 | I CLASS        | ASHHX           |
| C000194393 | R6 CLASS       | ASDDX           |
| C000224786 | G CLASS        | ASDOX           |

### SHORT DURATION STRATEGIC INCOME FUND (Series ID: S000046093)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000144162 | INVESTOR CLASS | ASDVX           |
| C000144163 | R5 CLASS       | ASDJX           |
| C000144164 | A CLASS        | ASADX           |
| C000144165 | C CLASS        | ASCDX           |
| C000144166 | R CLASS        | ASDRX           |
| C000144167 | R6 CLASS       | ASXDX           |
| C000189693 | I CLASS        | ASDHX           |
| C000189694 | Y CLASS        | ASYDX           |

### MULTISECTOR INCOME FUND (Series ID: S000046094)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000144168 | C CLASS        | ASIHX           |
| C000144169 | R CLASS        | ASIWX           |
| C000144170 | R6 CLASS       | ASIPX           |
| C000144171 | INVESTOR CLASS | ASIEX           |
| C000144172 | R5 CLASS       | ASIJX           |
| C000144173 | A CLASS        | ASIQX           |
| C000189695 | I CLASS        | ASIGX           |
| C000189696 | Y CLASS        | ASYIX           |

### HIGH INCOME FUND (Series ID: S000058290)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000191071 | INVESTOR CLASS | AHIVX           |
| C000191072 | I CLASS        | AHIIX           |
| C000191073 | Y CLASS        | NPHIX           |
| C000191074 | A CLASS        | AHIAX           |
| C000191075 | R5 CLASS       | AHIEX           |
| C000191076 | R6 CLASS       | AHIDX           |
| C000237257 | G CLASS        | ACHFX           |

---

| | |
|:---|:---|
| American Century Investment Trust<br>**Statement of Additional Information Supplement** | ![image8a08a.jpg](image8a08a.jpg) |
| Supplement dated February 14, 2023 ■ Statement of Additional Information dated August 1, 2022 | Supplement dated February 14, 2023 ■ Statement of Additional Information dated August 1, 2022 |

---

*Strategic Income Fund is renamed Multisector Income Fund. Effective February 14, 2023, all references to Strategic Income will be replaced with Multisector Income.*

<br>©2023 American Century Proprietary Holdings, Inc. All rights reserved.<br>CL-SPL-97996 2302

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