# EDGAR Filing Document

**Accession Number:** 0000747546
**File Stem:** 0001193125-25-210677
**Filing Date:** 2025-9
**Character Count:** 2701
**Document Hash:** 4a696b8163bfa5d2f0de915e5a80fe94
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-210677.hdr.sgml**: 20250922

**ACCESSION NUMBER**: 0001193125-25-210677

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250922

**DATE AS OF CHANGE**: 20250922

**EFFECTIVENESS DATE**: 20250922

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PARNASSUS FUNDS
- **CENTRAL INDEX KEY:** 0000747546

**ORGANIZATION NAME:**
- **EIN:** 946579180
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-93131
- **FILM NUMBER:** 251329223

**BUSINESS ADDRESS:**
- **STREET 1:** ONE MARKET #1600
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94105
- **BUSINESS PHONE:** 4157780200

**MAIL ADDRESS:**
- **STREET 1:** ONE MARKET #1600
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94105

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PARNASSUS FUND
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RENAISSANCE FUND/MA
- **DATE OF NAME CHANGE:** 19841206

## Series and Classes Contracts Data

### Parnassus Mid Cap Fund (Series ID: S000000853)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Investor Shares      | PARMX         | C000002468 |
| Institutional Shares | PFPMX         | C000156023 |

---

## Series and Classes Contracts Data

### Parnassus Mid Cap Fund (Series ID: S000000853)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000002468 | Investor Shares      | PARMX           |
| C000156023 | Institutional Shares | PFPMX           |

**Parnassus Mid Cap Fund** 

*Investor Class* PARMX \| *Institutional Class* PFPMX

September 22, 2025

**Supplement to the Prospectus, Summary Prospectus and** 

**Statement of Additional Information, each dated April 28, 2025** 

Effective September 16, 2025, Matthew D. Gershuny is no longer a portfolio manager of Parnassus Mid Cap Fund (the "**Fund**"). The portfolio managers of the Fund who are jointly and primarily responsible for the day-to-day management of the Fund's portfolio will continue to be Lori A. Keith and Ian E. Sexsmith.

Accordingly, effective immediately, the disclosure concerning Matthew D. Gershuny in the (i) "Portfolio Managers" section of the Fund's Prospectus and Summary Prospectus and (ii) "Management of the Funds" section of the Prospectus is deleted.

In addition, effective immediately, the disclosure concerning Matthew D. Gershuny in the tables in the "Portfolio Managers" section of the Statement of Additional Information is deleted.

\*\*\*\*\*\*

Please Read Carefully and Keep for Future Reference