# EDGAR Filing Document

**Accession Number:** 0000898745
**File Stem:** 0000898745-26-000485
**Filing Date:** 2026-4
**Character Count:** 3072
**Document Hash:** 09a133e81b2ec01382f378a2bbac3f9e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000898745-26-000485.hdr.sgml**: 20260408

**ACCESSION NUMBER**: 0000898745-26-000485

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260408

**DATE AS OF CHANGE**: 20260408

**EFFECTIVENESS DATE**: 20260408

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PRINCIPAL FUNDS, INC.
- **CENTRAL INDEX KEY:** 0000898745

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-59474
- **FILM NUMBER:** 26846646

**BUSINESS ADDRESS:**
- **STREET 1:** 711 HIGH STREET
- **CITY:** DES MOINES
- **STATE:** IA
- **ZIP:** 50392
- **BUSINESS PHONE:** 515-235-9328

**MAIL ADDRESS:**
- **STREET 1:** PRINCIPAL FINANCIAL GROUP
- **CITY:** DES MOINES
- **STATE:** IA
- **ZIP:** 50392

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PRINCIPAL FUNDS, INC
- **DATE OF NAME CHANGE:** 20211220

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PRINCIPAL FUNDS INC
- **DATE OF NAME CHANGE:** 20080616

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PRINCIPAL INVESTORS FUND INC
- **DATE OF NAME CHANGE:** 20001012

## Series and Classes Contracts Data

### Global Real Estate Securities Fund (Series ID: S000019119)

---

|  |  |  |
|:---|:---|:---|
| Class Name          | Ticker Symbol | Class ID   |
| Class A             | POSAX         | C000052887 |
| Institutional Class | POSIX         | C000052889 |
| R-6                 | PGRSX         | C000149262 |
| R-3                 | PGRKX         | C000167005 |
| R-5                 | PGRUX         | C000167007 |

---

## Series and Classes Contracts Data

### Global Real Estate Securities Fund (Series ID: S000019119)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000052887 | Class A             | POSAX           |
| C000052889 | Institutional Class | POSIX           |
| C000149262 | R-6                 | PGRSX           |
| C000167005 | R-3                 | PGRKX           |
| C000167007 | R-5                 | PGRUX           |

**Principal Funds, Inc.** 

**Supplement dated April 8, 2026**

**to the Prospectus and Statement of Additional Information**

**both dated March 1, 2026**

**(as previously supplemented)**

This supplement updates information currently in the Prospectus and Statement of Additional Information. Please retain this supplement for future reference.

The changes described below are being made to the Prospectus.

**SUMMARY FOR GLOBAL REAL ESTATE SECURITIES FUND**

*Effective June 15, 2026, under* **Sub-Advisor and Portfolio Managers***, delete all references to Simon Hedger.*

**MANAGEMENT OF THE FUNDS**

*Effective June 15, 2026, delete all references to Simon Hedger.*

The changes described below are being made to the Statement of Additional Information.

**PORTFOLIO MANAGER DISCLOSURE** 

*Effective June 15, 2026, in the* **Sub-Advisor: Principal Real Estate Investors, LLC** *section, delete all references to Simon Hedger.*