# EDGAR Filing Document

**Accession Number:** 0000893783
**File Stem:** 0001829126-26-003106
**Filing Date:** 2026-4
**Character Count:** 2862
**Document Hash:** c3a244766b77da8d534a2c10037ebd26
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001829126-26-003106.hdr.sgml**: 20260402

**ACCESSION NUMBER**: 0001829126-26-003106

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260402

**DATE AS OF CHANGE**: 20260402

**EFFECTIVENESS DATE**: 20260402

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GABELLI INVESTOR FUNDS INC
- **CENTRAL INDEX KEY:** 0000893783

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-54016
- **FILM NUMBER:** 26834373

**BUSINESS ADDRESS:**
- **STREET 1:** ONE CORPORATE CENTER
- **CITY:** RYE
- **STATE:** NY
- **ZIP:** 10580-1434
- **BUSINESS PHONE:** 9149215100

**MAIL ADDRESS:**
- **STREET 1:** ONE CORPORATE CENTER
- **CITY:** RYE
- **STATE:** NY
- **ZIP:** 10580-1434

## Series and Classes Contracts Data

### THE GABELLI ABC FUND (Series ID: S000001070)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000002886 | CLASS I        | GABCX           |
| C000050409 | Advisor Shares | GADVX           |

**Filed Pursuant to Rule 497(k)**

**Registration No 033-54016**

**GABELLI INVESTOR FUNDS, INC.**

**The Gabelli ABC Fund**

**Supplement dated March 31, 2026**

**to**

**Summary Prospectus dated April 30, 2025 and supplemented from time to time**

This supplement amends certain information in the Summary Prospectus ("Summary Prospectus"), dated April 30, 2025 and supplemented from time to time, of Gabelli ABC Fund (the "Fund"). Unless otherwise indicated, all other information included in the Summary Prospectus or any previous supplements thereto, that is not inconsistent with the information set forth in this supplement, remains unchanged. Capitalized terms not otherwise defined in this supplement have the same meaning as in the Summary Prospectus.

*The following paragraphs replace the disclosure in the sub-section entitled "Management – The Portfolio Manager" beginning on page 6:*

**<u>The Portfolio Manager</u><u>s</u>.** Mario J. Gabelli, CFA, and Willis Brucker are primarily responsible for the day-to-day management of the Fund. Mr. Gabelli has served as portfolio manager of the Fund since its inception on May 14, 1993, and Mr. Brucker has served as portfolio manager of the Fund since March 2026.

The investment team assists in developing and executing the Fund's investment strategy, and includes Salvatore Muoio, Gustavo Pifano, and Paul Young.

The members of the investment team may take on primary responsibility for the day-to-day management of the Fund in place of or in addition to the named portfolio managers, and are subject to change from time to time, in the judgment and at the discretion of the Adviser.

**SHAREHOLDERS SHOULD RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE**