# EDGAR Filing Document

**Accession Number:** 0001267862
**File Stem:** 0001999371-25-014213
**Filing Date:** 2025-9
**Character Count:** 2856
**Document Hash:** 9f8cc54855e5f49ff6b65a4d1968cafe
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-25-014213.hdr.sgml**: 20250930

**ACCESSION NUMBER**: 0001999371-25-014213

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250930

**DATE AS OF CHANGE**: 20250930

**EFFECTIVENESS DATE**: 20250930

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** T. Rowe Price Diversified Mid-Cap Growth Fund, Inc.
- **CENTRAL INDEX KEY:** 0001267862

**ORGANIZATION NAME:**
- **EIN:** 421615933
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-109958
- **FILM NUMBER:** 251358208

**BUSINESS ADDRESS:**
- **STREET 1:** 1307 POINT STREET
- **CITY:** BALTIMORE
- **STATE:** MD
- **ZIP:** 21231
- **BUSINESS PHONE:** 410-345-2000

**MAIL ADDRESS:**
- **STREET 1:** 1307 POINT STREET
- **CITY:** BALTIMORE
- **STATE:** MD
- **ZIP:** 21231

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** T ROWE PRICE DIVERSIFIED MID CAP GROWTH FUND INC
- **DATE OF NAME CHANGE:** 20031022

## Series and Classes Contracts Data

### T. Rowe Price Diversified Mid-Cap Growth Fund, Inc. (Series ID: S000002073)

| Class ID   | Class Name                                             | Ticker Symbol   |
|:---|:---|:---|
| C000005433 | T. Rowe Price Diversified Mid-Cap Growth Fund, Inc.    | PRDMX           |
| C000190557 | T. Rowe Price Diversified Mid-Cap Growth Fund- I Class | RPTTX           |

**T. Rowe Price Diversified Mid-Cap Growth Fund**

Supplement to Prospectus and Summary Prospectus dated March 4, 2025

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In the Summary Prospectus and Section 1 of the Prospectus, the portfolio manager table under "Management" is supplemented as follows:

Effective March 31, 2026, Dante Pearson will join Donald J. Peters as the fund's co-portfolio manager and cochair of the fund's Investment Advisory Committee. Effective December 31, 2026, Mr. Peters will step down from his role on the fund and Mr. Pearson will become the fund's sole portfolio manager and sole chair of the fund's Investment Advisory Committee. Mr. Pearson joined T. Rowe Price in 2017.

In Section 2 of the Prospectus, the disclosure under "Portfolio Management" is supplemented as follows:

Effective March 31, 2026, Dante Pearson will join Donald J. Peters as the fund's co-portfolio manager and cochair of the fund's Investment Advisory Committee. Effective December 31, 2026, Mr. Peters will step down from his role on the fund and Mr. Pearson will become the fund's sole portfolio manager and sole chair of the fund's Investment Advisory Committee. Mr. Pearson joined the Firm in 2017, and his investment experience dates from 2013. During the past five years, he has served as an equity research analyst and an associate portfolio manager (beginning in 2024).

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The date of this supplement is September 30, 2025.

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F149-041 9/30/25