# EDGAR Filing Document

**Accession Number:** 0000932101
**File Stem:** 0001193125-26-245036
**Filing Date:** 2026-5
**Character Count:** 1965
**Document Hash:** 847da0881184fe19d84796fce2d762f7
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-245036.hdr.sgml**: 20260528

**ACCESSION NUMBER**: 0001193125-26-245036

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260528

**DATE AS OF CHANGE**: 20260528

**EFFECTIVENESS DATE**: 20260528

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PUTNAM INVESTMENT FUNDS
- **CENTRAL INDEX KEY:** 0000932101

**ORGANIZATION NAME:**
- **EIN:** 043251560
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-56339
- **FILM NUMBER:** 261034806

**BUSINESS ADDRESS:**
- **STREET 1:** 100 FEDERAL STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110
- **BUSINESS PHONE:** 6172921000

**MAIL ADDRESS:**
- **STREET 1:** 100 FEDERAL STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PUTNAM EQUITY FUNDS
- **DATE OF NAME CHANGE:** 19941028

## Series and Classes Contracts Data

### Putnam Sustainable Future Fund (Series ID: S000003851)

| Class ID   | Class Name      | Ticker Symbol   |
|:---|:---|:---|
| C000010770 | Class A Shares  | PMVAX           |
| C000010772 | Class C Shares  | PMPCX           |
| C000010773 | Class R Shares  | PMVRX           |
| C000010774 | Class Y Shares  | PMVYX           |
| C000202883 | Class R6 Shares |  |

38986-P2 05/26

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| | |
|:---|:---|
| ![LOGO](g121964g00k00.jpg) | ![LOGO](g121964g00k01.jpg) |

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**PUTNAM INVESTMENT FUNDS** 

**SUPPLEMENT DATED MAY 28, 2026** 

**TO THE SUMMARY PROSPECTUS AND PROSPECTUS** 

**EACH DATED SEPTEMBER 1, 2025** 

**OF PUTNAM SUSTAINABLE FUTURE FUND (THE "FUND")** 

**The following replaces the sentence in the sections titled "Goal" and "Fund summary-Goal" in the Fund's Summary Prospectus and Prospectus, respectively.** 

The fund seeks long-term capital appreciation.

**Please retain this supplement for future reference.**