# EDGAR Filing Document

**Accession Number:** 0001002537
**File Stem:** 0000894189-26-011303
**Filing Date:** 2026-3
**Character Count:** 2628
**Document Hash:** 7b4c4eca47caff0e5256e3c14908aebd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000894189-26-011303.hdr.sgml**: 20260331

**ACCESSION NUMBER**: 0000894189-26-011303

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260331

**DATE AS OF CHANGE**: 20260331

**EFFECTIVENESS DATE**: 20260331

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NEEDHAM FUNDS INC
- **CENTRAL INDEX KEY:** 0001002537

**ORGANIZATION NAME:**
- **EIN:** 133865553
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-98310
- **FILM NUMBER:** 26822905

**BUSINESS ADDRESS:**
- **STREET 1:** 250 PARK AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10177
- **BUSINESS PHONE:** 2123718300

**MAIL ADDRESS:**
- **STREET 1:** 250 PARK AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10177

## Series and Classes Contracts Data

### Needham Small Cap Growth Fund (Series ID: S000003816)

---

|  |  |  |
|:---|:---|:---|
| Class Name          | Ticker Symbol | Class ID   |
| Retail Class        | NESGX         | C000010645 |
| Institutional Class | NESIX         | C000176577 |

---

## Series and Classes Contracts Data

### Needham Small Cap Growth Fund (Series ID: S000003816)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000010645 | Retail Class        | NESGX           |
| C000176577 | Institutional Class | NESIX           |

**THE NEEDHAM FUNDS, INC.**

*Needham Small Cap Growth Fund*

*(the "Fund")*

**IMPORTANT NOTICE REGARDING CHANGE IN INVESTMENT POLICY**

**_____________________________________________________________________**

**SUPPLEMENT DATED MARCH 31, 2026**

**TO THE PROSPECTUS**

**DATED MARCH 31, 2026**

**______________________________________________________________________**

Effective May 31, 2026, the Fund's 80% Policy (as defined in the Prospectus) will be changed to the following: Under normal conditions, the Small Cap Growth Fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in the equity securities (principally, common stock) of domestic issuers listed on a nationally recognized securities exchange that, at the time of investment by the Small Cap Growth Fund, have market capitalizations up to the largest market cap stock in the Bloomberg US 2000 Growth Index<sup>®</sup> at reconstitution, or companies with market capitalizations up to $8.0 billion, whichever is larger (the "80% Policy").

\* \* \*

**Please retain this Supplement with the Fund's Prospectus for future reference.**