# EDGAR Filing Document

**Accession Number:** 0001097519
**File Stem:** 0001193125-25-192091
**Filing Date:** 2025-8
**Character Count:** 4379
**Document Hash:** 903298049bde782b51fd9123e751dbac
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-192091.hdr.sgml**: 20250829

**ACCESSION NUMBER**: 0001193125-25-192091

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250829

**DATE AS OF CHANGE**: 20250829

**EFFECTIVENESS DATE**: 20250829

**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:** 251276592

**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

## Series and Classes Contracts Data

### Columbia Small Cap Value Fund II (Series ID: S000010793)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                             | Ticker Symbol | Class ID   |
| Columbia Small Cap Value Fund II Class A               | COVAX         | C000029855 |
| Columbia Small Cap Value Fund II Class R               | CCTRX         | C000029858 |
| Columbia Small Cap Value Fund II Institutional Class   | NSVAX         | C000029859 |
| Columbia Small Cap Value Fund II Institutional 2 Class | CRRRX         | C000122579 |
| Columbia Small Cap Value Fund II Institutional 3 Class | CRRYX         | C000122580 |
| Columbia Small Cap Value Fund II Class S               | NSVBX         | C000253705 |

---

## Series and Classes Contracts Data

### Columbia Small Cap Value Fund II (Series ID: S000010793)

| Class ID   | Class Name                                             | Ticker Symbol   |
|:---|:---|:---|
| C000029855 | Columbia Small Cap Value Fund II Class A               | COVAX           |
| C000029858 | Columbia Small Cap Value Fund II Class R               | CCTRX           |
| C000029859 | Columbia Small Cap Value Fund II Institutional Class   | NSVAX           |
| C000122579 | Columbia Small Cap Value Fund II Institutional 2 Class | CRRRX           |
| C000122580 | Columbia Small Cap Value Fund II Institutional 3 Class | CRRYX           |
| C000253705 | Columbia Small Cap Value Fund II Class S               | NSVBX           |

**Supplement dated August 29, 2025**

to the Prospectus (as supplemented) of the following Fund:

---

| | |
|:---|:---|
| **Fund** | **Prospectus** |
| Columbia Funds Series Trust |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Columbia Small Cap Value Fund II | 7/1/2025 |

---

*As previously supplemented on July 2, 2025, the Fund's name will be changed to* ***Columbia Small Cap Value and Inflection Fund*** *effective on or about September 1, 2025 (the Effective Date).*

*On the Effective Date, the information in the fifth paragraph under the heading "Principal Investment Strategies" in the "More Information about the Fund" section of the Fund's Prospectus is hereby superseded and replaced with the following:*

In selecting investments, Columbia Management Investment Advisers, LLC (the Investment Manager) considers, among other factors:

<sup>■</sup>

businesses that are exhibiting evidence of upward inflection believed to be fundamentally sound and undervalued due to investor indifference, investor misperception of company prospects, or other factors;

<sup>■</sup>

various measures of valuation, including price-to-cash flow, price-to-earnings, price-to-sales, and price-to-book value. The Investment Manager believes that companies with lower valuations are generally more likely to provide opportunities for long-term capital appreciation;

<sup>■</sup>

a company's current operating margins relative to its historic range and future potential; and

<sup>■</sup>

potential indicators of stock price appreciation, such as anticipated earnings growth, company restructuring, changes in management, business model changes, new product opportunities, or anticipated improvements in macroeconomic factors.

*The rest of the section remains the same.*

*Shareholders should retain this Supplement for future reference.*

SUP230_02_003_(08/25)

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