# EDGAR Filing Document

**Accession Number:** 0000809707
**File Stem:** 0001655589-25-000146
**Filing Date:** 2025-10
**Character Count:** 2786
**Document Hash:** 786e95d81ee0cd3fe9a575ed5af40495
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001655589-25-000146.hdr.sgml**: 20251031

**ACCESSION NUMBER**: 0001655589-25-000146

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251031

**DATE AS OF CHANGE**: 20251031

**EFFECTIVENESS DATE**: 20251031

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Franklin Investors Securities Trust
- **CENTRAL INDEX KEY:** 0000809707

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

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-11444
- **FILM NUMBER:** 251438353

**BUSINESS ADDRESS:**
- **STREET 1:** ONE FRANKLIN PARKWAY
- **CITY:** SAN MATEO
- **STATE:** CA
- **ZIP:** 94403-1906
- **BUSINESS PHONE:** 650-312-2200

**MAIL ADDRESS:**
- **STREET 1:** ONE FRANKLIN PARKWAY
- **CITY:** SAN MATEO
- **STATE:** CA
- **ZIP:** 94403-1906

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FRANKLIN INVESTORS SECURITIES TRUST
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### FRANKLIN LOW DURATION U.S. GOVERNMENT SECURITIES FUND (Series ID: S000006850)

| Class ID   | Class Name    | Ticker Symbol   |
|:---|:---|:---|
| C000018509 | Class A       | FISAX           |
| C000018510 | Class C       | FCSCX           |
| C000064441 | Advisor Class | FAUZX           |
| C000133492 | Class R6      | FAURX           |
| C000140480 | Class A1      | FAUGX           |

#### GOF-P35 10/25

#### SUPPLEMENT DATED OCTOBER 31, 2025

#### TO THE SUMMARY PROSPECTUS, PROSPECTUS

#### AND STATEMENT OF ADDITIONAL INFORMATION ("SAI")

#### OF EACH FUND LISTED IN SCHEDULE A
<br>**Effective October 31, 2025, the following changes are made to each fund's Summary Prospectus, Prospectus and SAI:**

**a) The following footnote is added to all references to Paul Varunok in each fund's Summary Prospectus, Prospectus and SAI:** 

\* Mr. Varunok is anticipated to step down as a member of the fund's portfolio management team on or about December 31, 2025. Thereafter, he will transition to an advisory role with Franklin Templeton.

#### Schedule A

---

| | |
|:---|:---|
| **Fund**<br>| **Date of Summary Prospectus,** <br>**Prospectus and SAI**<br>|
| **<u>FRANKLIN CUSTODIAN FUNDS</u>** |  |
| Franklin U.S. Government Securities Fund | February 1, 2025 |
| **<u>FRANKLIN ETF TRUST</u>** |  |
| Franklin Short Duration U.S. Government ETF | August 1, 2025 |
| **<u>FRANKLIN INVESTORS SECURITIES TRUST</u>** |  |
| Franklin Low Duration U.S. Government Securities Fund | March 1, 2025 |
| **<u>FRANKLIN TEMPLETON VARIABLE INSURANCE PRODUCTS TRUST</u>** |  |
| Franklin U.S. Government Securities VIP Fund | May 1, 2025 |

---

#### Please retain this supplement for future reference

------