# EDGAR Filing Document

**Accession Number:** 0001097519
**File Stem:** 0001193125-25-154503
**Filing Date:** 2025-7
**Character Count:** 12509
**Document Hash:** aed4b3d1d946d502abe5726b1f21bcbb
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-154503.hdr.sgml**: 20250702

**ACCESSION NUMBER**: 0001193125-25-154503

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250702

**DATE AS OF CHANGE**: 20250702

**EFFECTIVENESS DATE**: 20250702

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** COLUMBIA FUNDS SERIES TRUST
- **CENTRAL INDEX KEY:** 0001097519

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-89661
- **FILM NUMBER:** 251098715

**BUSINESS ADDRESS:**
- **STREET 1:** 290 CONGRESS STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210
- **BUSINESS PHONE:** 800-345-6611

**MAIL ADDRESS:**
- **STREET 1:** 290 CONGRESS STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NATIONS FUNDS TRUST
- **DATE OF NAME CHANGE:** 19991022
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Columbia Funds Series Trust II
- **CENTRAL INDEX KEY:** 0001352280

**ORGANIZATION NAME:**
- **EIN:** 204384176
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0430

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-131683
- **FILM NUMBER:** 251098716

**BUSINESS ADDRESS:**
- **STREET 1:** 290 CONGRESS STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210
- **BUSINESS PHONE:** 800-345-6611

**MAIL ADDRESS:**
- **STREET 1:** 290 CONGRESS STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02210

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RIVERSOURCE SERIES TRUST
- **DATE OF NAME CHANGE:** 20070928

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RIVERSOURCE RETIREMENT SERIES TRUST
- **DATE OF NAME CHANGE:** 20060801

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RiverSource Retirement Series Trust
- **DATE OF NAME CHANGE:** 20060206

## Series and Classes Contracts Data

### Columbia Capital Allocation Moderate Aggressive Portfolio (Series ID: S000010774)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                                                      | Ticker Symbol | Class ID   |
| Columbia Capital Allocation Moderate Aggressive Portfolio Class A               | NBIAX         | C000029775 |
| Columbia Capital Allocation Moderate Aggressive Portfolio Class C               | NBICX         | C000029777 |
| Columbia Capital Allocation Moderate Aggressive Portfolio Class R               | CLBRX         | C000029778 |
| Columbia Capital Allocation Moderate Aggressive Portfolio Institutional Class   | NBGPX         | C000029779 |
| Columbia Capital Allocation Moderate Aggressive Portfolio Institutional 3 Class | CPHNX         | C000129843 |
| Columbia Capital Allocation Moderate Aggressive Portfolio Class S               | NBGDX         | C000251871 |

---

### Columbia Capital Allocation Moderate Conservative Portfolio (Series ID: S000010796)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                                                      | Ticker Symbol | Class ID   |
| Columbia Capital Allocation Moderate Conservative Portfolio Class A             | NLGAX         | C000029869 |
| Columbia Capital Allocation Moderate Conservative Portfolio Class C             | NIICX         | C000029871 |
| Columbia Capital Allocation Moderate Conservative Portfolio Class R             | CLIRX         | C000029872 |
| Columbia Capital Allocation Moderate Conservative Portfolio Institutional Class | NIPAX         | C000029873 |

---

### Columbia Capital Allocation Aggressive Portfolio (Series ID: S000031358)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                                             | Ticker Symbol | Class ID   |
| Columbia Capital Allocation Aggressive Portfolio Class A               | AXBAX         | C000097466 |
| Columbia Capital Allocation Aggressive Portfolio Class C               | RBGCX         | C000097468 |
| Columbia Capital Allocation Aggressive Portfolio Class R               | CPARX         | C000097469 |
| Columbia Capital Allocation Aggressive Portfolio Institutional Class   | CPAZX         | C000097471 |
| Columbia Capital Allocation Aggressive Portfolio Institutional 3 Class | CPDIX         | C000129848 |

---

### Columbia Capital Allocation Conservative Portfolio (Series ID: S000031359)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                                             | Ticker Symbol | Class ID   |
| Columbia Capital Allocation Conservative Portfolio Class A             | ABDAX         | C000097472 |
| Columbia Capital Allocation Conservative Portfolio Class C             | RPCCX         | C000097474 |
| Columbia Capital Allocation Conservative Portfolio Institutional Class | CBVZX         | C000097477 |

---

### Columbia Capital Allocation Moderate Portfolio (Series ID: S000031362)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                                           | Ticker Symbol | Class ID   |
| Columbia Capital Allocation Moderate Portfolio Class A               | ABUAX         | C000097490 |
| Columbia Capital Allocation Moderate Portfolio Class C               | AMTCX         | C000097492 |
| Columbia Capital Allocation Moderate Portfolio Institutional Class   | CBMZX         | C000097495 |
| Columbia Capital Allocation Moderate Portfolio Institutional 3 Class | CPDMX         | C000129854 |

---

## Series and Classes Contracts Data

### Columbia Capital Allocation Moderate Aggressive Portfolio (Series ID: S000010774)

| Class ID   | Class Name                                                                      | Ticker Symbol   |
|:---|:---|:---|
| C000029775 | Columbia Capital Allocation Moderate Aggressive Portfolio Class A               | NBIAX           |
| C000029777 | Columbia Capital Allocation Moderate Aggressive Portfolio Class C               | NBICX           |
| C000029778 | Columbia Capital Allocation Moderate Aggressive Portfolio Class R               | CLBRX           |
| C000029779 | Columbia Capital Allocation Moderate Aggressive Portfolio Institutional Class   | NBGPX           |
| C000129843 | Columbia Capital Allocation Moderate Aggressive Portfolio Institutional 3 Class | CPHNX           |
| C000251871 | Columbia Capital Allocation Moderate Aggressive Portfolio Class S               | NBGDX           |

### Columbia Capital Allocation Moderate Conservative Portfolio (Series ID: S000010796)

| Class ID   | Class Name                                                                      | Ticker Symbol   |
|:---|:---|:---|
| C000029869 | Columbia Capital Allocation Moderate Conservative Portfolio Class A             | NLGAX           |
| C000029871 | Columbia Capital Allocation Moderate Conservative Portfolio Class C             | NIICX           |
| C000029872 | Columbia Capital Allocation Moderate Conservative Portfolio Class R             | CLIRX           |
| C000029873 | Columbia Capital Allocation Moderate Conservative Portfolio Institutional Class | NIPAX           |

### Columbia Capital Allocation Aggressive Portfolio (Series ID: S000031358)

| Class ID   | Class Name                                                             | Ticker Symbol   |
|:---|:---|:---|
| C000097466 | Columbia Capital Allocation Aggressive Portfolio Class A               | AXBAX           |
| C000097468 | Columbia Capital Allocation Aggressive Portfolio Class C               | RBGCX           |
| C000097469 | Columbia Capital Allocation Aggressive Portfolio Class R               | CPARX           |
| C000097471 | Columbia Capital Allocation Aggressive Portfolio Institutional Class   | CPAZX           |
| C000129848 | Columbia Capital Allocation Aggressive Portfolio Institutional 3 Class | CPDIX           |

### Columbia Capital Allocation Conservative Portfolio (Series ID: S000031359)

| Class ID   | Class Name                                                             | Ticker Symbol   |
|:---|:---|:---|
| C000097472 | Columbia Capital Allocation Conservative Portfolio Class A             | ABDAX           |
| C000097474 | Columbia Capital Allocation Conservative Portfolio Class C             | RPCCX           |
| C000097477 | Columbia Capital Allocation Conservative Portfolio Institutional Class | CBVZX           |

### Columbia Capital Allocation Moderate Portfolio (Series ID: S000031362)

| Class ID   | Class Name                                                           | Ticker Symbol   |
|:---|:---|:---|
| C000097490 | Columbia Capital Allocation Moderate Portfolio Class A               | ABUAX           |
| C000097492 | Columbia Capital Allocation Moderate Portfolio Class C               | AMTCX           |
| C000097495 | Columbia Capital Allocation Moderate Portfolio Institutional Class   | CBMZX           |
| C000129854 | Columbia Capital Allocation Moderate Portfolio Institutional 3 Class | CPDMX           |

**Supplement dated July 2, 2025**

to the Prospectus and Summary Prospectuses of each of the following funds (each, a Fund, and collectively, the Funds):

---

| | |
|:---|:---|
| **Fund** | **Prospectus and Summary Prospectus Dated** |
| Columbia Funds Series Trust |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Columbia Capital Allocation Moderate Aggressive Portfolio | &nbsp;&nbsp;&nbsp;&nbsp; 06/01/2025 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Columbia Capital Allocation Moderate Conservative Portfolio | &nbsp;&nbsp;&nbsp;&nbsp; 06/01/2025 |
| Columbia Funds Series Trust II |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Columbia Capital Allocation Aggressive Portfolio | &nbsp;&nbsp;&nbsp;&nbsp; 06/01/2025 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Columbia Capital Allocation Conservative Portfolio | &nbsp;&nbsp;&nbsp;&nbsp; 06/01/2025 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Columbia Capital Allocation Moderate Portfolio | &nbsp;&nbsp;&nbsp;&nbsp; 06/01/2025 |

---

*Effective August 1, 2025, the Blended Benchmark for each Fund in the Prospectus and each Fund's Summary Prospectus will be revised as follows:* 

**For Columbia Capital Allocation Conservative Portfolio**

**Blended Benchmark (consisting of 75% Bloomberg U.S. Aggregate Bond Index, 20% Russell 3000**<sup>®</sup> **Index and 5% MSCI EAFE + Emerging Markets Index (Net)** (reflects reinvested dividends net of withholding taxes on the MSCI EAFE + Emerging Markets Index portion of the Blended Benchmark, and for all indexes reflects no deductions for fees, expenses or other taxes)

**For Columbia Capital Allocation Moderate Conservative Portfolio**

**Blended Benchmark (consisting of 60% Bloomberg U.S. Aggregate Bond Index, 30% Russell 3000**<sup>®</sup> **Index and 10% MSCI EAFE + Emerging Markets Index (Net)** (reflects reinvested dividends net of withholding taxes on the MSCI EAFE + Emerging Markets Index portion of the Blended Benchmark, and for all indexes reflects no deductions for fees, expenses or other taxes)

**For Columbia Capital Allocation Moderate Portfolio**

**Blended Benchmark (consisting of 45% Bloomberg U.S. Aggregate Bond Index, 40% Russell 3000**<sup>®</sup> **Index and 15% MSCI EAFE + Emerging Markets Index (Net)** (reflects reinvested dividends net of withholding taxes on the MSCI EAFE + Emerging Markets Index portion of the Blended Benchmark, and for all indexes reflects no deductions for fees, expenses or other taxes)

**For Columbia Capital Allocation Moderate Aggressive Portfolio**

**Blended Benchmark (consisting of 50% Russell 3000**<sup>®</sup> **Index, 35% Bloomberg U.S. Aggregate Bond Index, and 15% MSCI EAFE + Emerging Markets Index (Net)** (reflects reinvested dividends net of withholding taxes on the MSCI EAFE + Emerging Markets Index portion of the Blended Benchmark, and for all indexes reflects no deductions for fees, expenses or other taxes)

**For Columbia Capital Allocation Aggressive Portfolio**

**Blended Benchmark (consisting of 60% Russell 3000**<sup>®</sup> **Index, 20% Bloomberg U.S. Aggregate Bond Index, and 20% MSCI EAFE + Emerging Markets Index (Net)** (reflects reinvested dividends net of withholding taxes on the MSCI EAFE + Emerging Markets Index portion of the Blended Benchmark, and for all indexes reflects no deductions for fees, expenses or other taxes)

*Shareholders should retain this Supplement for future reference.*

SUP000_00_174_(07/25)

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