# EDGAR Filing Document

**Accession Number:** 0000081248
**File Stem:** 0001133228-26-008622
**Filing Date:** 2026-6
**Character Count:** 81491
**Document Hash:** 2a7a8ae7c7d6c5bfd546a8d7445b37c0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001133228-26-008622.hdr.sgml**: 20260601

**ACCESSION NUMBER**: 0001133228-26-008622

**CONFORMED SUBMISSION TYPE**: N-CSRS

**PUBLIC DOCUMENT COUNT**: 24

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260601

**DATE AS OF CHANGE**: 20260601

**EFFECTIVENESS DATE**: 20260601

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PUTNAM MONEY MARKET FUND
- **CENTRAL INDEX KEY:** 0000081248

**ORGANIZATION NAME:**
- **EIN:** 046386436
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** N-CSRS
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-02608
- **FILM NUMBER:** 261049958

**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 DAILY DIVIDEND TRUST
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### PUTNAM MONEY MARKET FUND (Series ID: S000006251)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000017192 | Class A Shares | PDDXX           |
| C000017194 | Class C Shares | PFCXX           |
| C000017196 | Class R Shares | PURXX           |

?xml version='1.0' encoding='ASCII'? 2026-04-2074200177300_PutnamMoneyMarketFund_ClassA_TSRSemiAnnual

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

**FORM N-CSR**

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number **811-02608**

**Putnam Money Market Fund**

(Exact name of registrant as specified in charter)

**100 Federal Street, Boston, Massachusetts 02110**

(Address of principal executive offices) (Zip code)

Stephen Tate, Vice President

100 Federal Street

Boston, Massachusetts 02110

Copy to:

Bryan Chegwidden, Esq.

Ropes & Gray LLP

1211 Avenue of the Americas

New York, New York 10036

James E. Thomas, Esq.

Ropes & Gray LLP

800 Boylston Street

Boston, Massachusetts 02199

(Name and address of agent for service)

Registrant's telephone number, including area code: **(617) 292-1000**

Date of fiscal year end: **September 30**

Date of reporting period: **March 31, 2026**

ITEM 1. REPORT TO STOCKHOLDERS.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) The Report to Shareholders is filed herewith

---

| | |
|:---|:---|
| **Putnam Money Market Fund**  | ![image](img2199_202405220716489.jpg) |
| Class A [PDDXX] | ![image](img2199_202405220716489.jpg) |
| Semi-Annual Shareholder Report \| March 31, 2026  | ![image](img2199_202405220716489.jpg) |
| ![image](img2195_202408190904545.jpg) | ![image](img2195_202408190904545.jpg) |

---

This semi-annual shareholder report contains important information about Putnam Money Market Fund for the period October 1, 2025, to March 31, 2026.

You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) 225-1581.

**WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?** (based on a hypothetical $10,000 investment)

---

| | | |
|:---|:---|:---|
| **Class Name** | **Costs of a $10,000** **investment** | **Costs paid as a percentage of a** **$10,000 investment**<sup>†</sup>  |
| Class A | $20 | 0.39% |

---

† Annualized.

**KEY FUND STATISTICS** (as of March 31, 2026)

---

| | |
|:---|:---|
| **Total Net Assets** | $938916732 |
| **Total Number of Portfolio Holdings** | 104 |

---

**WHAT DID THE FUND INVEST IN?** (as of March 31, 2026)

**Portfolio Composition (% of Total Investments)**

![image](ts7104img003.jpg)

---

| | |
|:---|:---|
| ![image](img11308_202405310907293.jpg) | **WHERE CAN I FIND ADDITIONAL INFORMATION ABOUT THE FUND?** |
| ![image](img11308_202405310907293.jpg) | Additional information is available on https://www.franklintempleton.com/regulatory-fund-documents, including its: |
| ![image](img11308_202405310907293.jpg) | • prospectus • proxy voting information • financial information • holdings • tax information |

---

Putnam Money Market Fund PAGE 1 38904-STSA-0526

11.836.10.551.6 ------

---

| | |
|:---|:---|
| **Putnam Money Market Fund**  | ![image](img2199_202405220716489.jpg) |
| Class C [PFCXX] | ![image](img2199_202405220716489.jpg) |
| Semi-Annual Shareholder Report \| March 31, 2026  | ![image](img2199_202405220716489.jpg) |
| ![image](img2195_202408190904545.jpg) | ![image](img2195_202408190904545.jpg) |

---

This semi-annual shareholder report contains important information about Putnam Money Market Fund for the period October 1, 2025, to March 31, 2026.

You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) 225-1581.

**WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?** (based on a hypothetical $10,000 investment)

---

| | | |
|:---|:---|:---|
| **Class Name** | **Costs of a $10,000** **investment** | **Costs paid as a percentage of a** **$10,000 investment**<sup>†</sup>  |
| Class C | $20 | 0.39% |

---

† Annualized.

**KEY FUND STATISTICS** (as of March 31, 2026)

---

| | |
|:---|:---|
| **Total Net Assets** | $938916732 |
| **Total Number of Portfolio Holdings** | 104 |

---

**WHAT DID THE FUND INVEST IN?** (as of March 31, 2026)

**Portfolio Composition (% of Total Investments)**

![image](ts7105img003.jpg)

---

| | |
|:---|:---|
| ![image](img11308_202405310907293.jpg) | **WHERE CAN I FIND ADDITIONAL INFORMATION ABOUT THE FUND?** |
| ![image](img11308_202405310907293.jpg) | Additional information is available on https://www.franklintempleton.com/regulatory-fund-documents, including its: |
| ![image](img11308_202405310907293.jpg) | • prospectus • proxy voting information • financial information • holdings • tax information |

---

Putnam Money Market Fund PAGE 1 38904-STSC-0526

11.836.10.551.6 ------

---

| | |
|:---|:---|
| **Putnam Money Market Fund**  | ![image](img2199_202405220716489.jpg) |
| Class R [PURXX] | ![image](img2199_202405220716489.jpg) |
| Semi-Annual Shareholder Report \| March 31, 2026  | ![image](img2199_202405220716489.jpg) |
| ![image](img2195_202408190904545.jpg) | ![image](img2195_202408190904545.jpg) |

---

This semi-annual shareholder report contains important information about Putnam Money Market Fund for the period October 1, 2025, to March 31, 2026.

You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) 225-1581.

**WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS?** (based on a hypothetical $10,000 investment)

---

| | | |
|:---|:---|:---|
| **Class Name** | **Costs of a $10,000** **investment** | **Costs paid as a percentage of a** **$10,000 investment**<sup>†</sup>  |
| Class R | $20 | 0.39% |

---

† Annualized.

**KEY FUND STATISTICS** (as of March 31, 2026)

---

| | |
|:---|:---|
| **Total Net Assets** | $938916732 |
| **Total Number of Portfolio Holdings** | 104 |

---

**WHAT DID THE FUND INVEST IN?** (as of March 31, 2026)

**Portfolio Composition (% of Total Investments)**

![image](ts7107img003.jpg)

---

| | |
|:---|:---|
| ![image](img11308_202405310907293.jpg) | **WHERE CAN I FIND ADDITIONAL INFORMATION ABOUT THE FUND?** |
| ![image](img11308_202405310907293.jpg) | Additional information is available on https://www.franklintempleton.com/regulatory-fund-documents, including its: |
| ![image](img11308_202405310907293.jpg) | • prospectus • proxy voting information • financial information • holdings • tax information |

---

Putnam Money Market Fund PAGE 1 38904-STSR-0526

11.836.10.551.6 ------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Not applicable

ITEM 2. CODE OF ETHICS.

Not applicable.

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

Not applicable.

ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Not applicable.

ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable.

ITEM 6. SCHEDULE OF INVESTMENTS.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Please see schedule of investments contained in the Financial Statements and Financial
 Highlights included under Item 7 of this Form N-CSR.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Not applicable.

ITEM 7. FINANCIAL STATEMENTS AND FINANCIAL HIGHLIGHTS FOR OPEN-END MANAGEMENT INVESTMENT COMPANIES.

#### Putnam

#### Money

#### Market

#### Fund

#### Financial

#### Statements

#### and

#### Other

#### Important

#### Information

#### Semi-Annual
\|

March

31,

2026

#### If

#### you

#### need

#### assistance

#### accessing

#### this

#### content,

#### please

#### reach

#### out

#### to

#### your

#### sales

#### representative

#### or

#### send

#### an

#### email

#### to

#### accessibility@franklintempleton.com

#### .

#### Table

#### of

#### Contents
franklintempleton.com

Financial

Statements

and

Other

Important

Information—Semiannual

Financial

Highlights

and

Schedule

of

Investments

#### 2
Financial

Statements

#### 10
Notes

to

Financial

Statements

#### 14
Changes

In

and

Disagreements

with

Accountants

#### 20
Results

of

Meeting(s)

of

Shareholders

Remuneration

Paid

to

Directors,

Officers

and

Others

Board

Approval

of

Management

and

Subadvisory

Agreements

Putnam

Money

Market

Fund

Financial

Highlights

franklintempleton.com

Semiannual

Report

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

a

#### Six

#### Months

#### Ended

#### March

#### 31,

#### 2026
(unaudited)

#### Year

#### Ended

#### September

#### 30,

#### 2025

#### 2024

#### 2023

#### 2022

#### 2021

#### Class

#### A

#### Per

#### share

#### operating

#### performance
(for

a

share

outstanding

throughout

the

period)

Net

asset

value,

beginning

of

period

.....

$1.00

$1.00

$1.00

$1.00

$1.00

$1.00

Income

from

investment

operations:

Net

investment

income

a

.............

0.018 0.042 0.051 0.044 0.006 —

b

Net

realized

gains

(losses)

...........

—

b

—

b

—

b

—

—

—

b

Total

from

investment

operations

........

0.018 0.042 0.051 0.044 0.006 —

b

Less

distributions

from:

Net

investment

income

..............

(0.018)

(0.042)

(0.051)

(0.044)

(0.006)

(—)

b

Net

asset

value,

end

of

period

..........

$1.00

$1.00

$1.00

$1.00

$1.00

$1.00

Total

return

c

.......................

1.80%

4.26%

5.22%

4.45%

0.57%

0.01%

#### Ratios

#### to

#### average

#### net

#### assets

#### d
Expenses

before

waiver

and

payments

by

affiliates

..........................

0.39%

0.43%

0.45%

0.47%

0.47%

0.46%

Expenses

net

of

waiver

and

payments

by

affiliates

e

..........................

0.39%

0.43%

0.45%

0.47%

0.31%

f,g

0.13%

g

Net

investment

income

...............

3.58%

4.16%

5.11%

4.37%

0.56%

0.01%

#### Supplemental

#### data
Net

assets,

end

of

period

(000's)

........

$919,615

$888,638

$875,482

$789,193

$744,273

$713,140

a

Based

on

average

daily

shares

outstanding.

b

Amount

rounds

to

less

than

$0.001

per

share.

c

Total

return

does

not

reflect

sales

commissions

or

contingent

deferred

sales

charges,

if

applicable,

and

is

not

annualized

for

periods

less

than

one

year.

d

Ratios

are

annualized

for

periods

less

than

one

year.

e

Benefit

of

expense

reduction

rounds

to

less

than

0.01%.

f

Includes

one-time

proxy

cost

of

0.01%.

g

Reflects

a

voluntary

waiver

of

certain

Fund

expenses

in

effect

during

the

period

relating

to

the

enhancements

of

certain

annualized

net

yields

of

the

Fund.

See

Note

3(g).

Putnam

Money

Market

Fund

Financial

Highlights

franklintempleton.com

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

Semiannual

Report

a

#### Six

#### Months

#### Ended

#### March

#### 31,

#### 2026
(unaudited)

#### Year

#### Ended

#### September

#### 30,

#### 2025

#### 2024

#### 2023

#### 2022

#### 2021

#### Class

#### C

#### Per

#### share

#### operating

#### performance
(for

a

share

outstanding

throughout

the

period)

Net

asset

value,

beginning

of

period

.....

$1.00

$1.00

$1.00

$1.00

$1.00

$1.00

Income

from

investment

operations:

Net

investment

income

a

.............

0.018 0.042 0.051 0.044 0.006 —

b

Net

realized

gains

(losses)

...........

—

b

—

b

—

b

—

—

—

b

Total

from

investment

operations

........

0.018 0.042 0.051 0.044 0.006 —

b

Less

distributions

from:

Net

investment

income

..............

(0.018)

(0.042)

(0.051)

(0.044)

(0.006)

(—)

b

Net

asset

value,

end

of

period

..........

$1.00

$1.00

$1.00

$1.00

$1.00

$1.00

Total

return

c

.......................

1.80%

4.26%

5.22%

4.45%

0.57%

0.01%

#### Ratios

#### to

#### average

#### net

#### assets

#### d
Expenses

before

waiver

and

payments

by

affiliates

..........................

0.39%

0.42%

0.45%

0.47%

0.47%

0.46%

Expenses

net

of

waiver

and

payments

by

affiliates

e

..........................

0.39%

0.42%

0.45%

0.47%

0.31%

f,g

0.13%

g

Net

investment

income

...............

3.50%

4.17%

5.10%

4.26%

0.81%

0.01%

#### Supplemental

#### data
Net

assets,

end

of

period

(000's)

........

$14,316

$6,412

$14,761

$17,067

$27,343

$14,613

a

Based

on

average

daily

shares

outstanding.

b

Amount

rounds

to

less

than

$0.001

per

share.

c

Total

return

does

not

reflect

sales

commissions

or

contingent

deferred

sales

charges,

if

applicable,

and

is

not

annualized

for

periods

less

than

one

year.

d

Ratios

are

annualized

for

periods

less

than

one

year.

e

Benefit

of

expense

reduction

rounds

to

less

than

0.01%.

f

Includes

one-time

proxy

cost

of

0.01%.

g

Reflects

a

voluntary

waiver

of

certain

Fund

expenses

in

effect

during

the

period

relating

to

the

enhancements

of

certain

annualized

net

yields

of

the

Fund.

See

Note

3(g).

Putnam

Money

Market

Fund

Financial

Highlights

franklintempleton.com

Semiannual

Report

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

a

#### Six

#### Months

#### Ended

#### March

#### 31,

#### 2026
(unaudited)

#### Year

#### Ended

#### September

#### 30,

#### 2025

#### 2024

#### 2023

#### 2022

#### 2021

#### Class

#### R

#### Per

#### share

#### operating

#### performance
(for

a

share

outstanding

throughout

the

period)

Net

asset

value,

beginning

of

period

.....

$1.00

$1.00

$1.00

$1.00

$1.00

$1.00

Income

from

investment

operations:

Net

investment

income

a

.............

0.018 0.042 0.051 0.044 0.006 —

b

Net

realized

gains

(losses)

...........

—

b

—

b

—

b

—

—

—

b

Total

from

investment

operations

........

0.018 0.042 0.051 0.044 0.006 —

b

Less

distributions

from:

Net

investment

income

..............

(0.018)

(0.042)

(0.051)

(0.044)

(0.006)

(—)

b

Net

asset

value,

end

of

period

..........

$1.00

$1.00

$1.00

$1.00

$1.00

$1.00

Total

return

c

.......................

1.80%

4.26%

5.22%

4.45%

0.57%

0.01%

#### Ratios

#### to

#### average

#### net

#### assets

#### d
Expenses

before

waiver

and

payments

by

affiliates

..........................

0.39%

0.42%

0.45%

0.47%

0.47%

0.46%

Expenses

net

of

waiver

and

payments

by

affiliates

e

..........................

0.39%

0.42%

0.45%

0.47%

0.31%

f,g

0.13%

g

Net

investment

income

...............

3.58%

4.16%

5.11%

4.34%

0.52%

0.01%

#### Supplemental

#### data
Net

assets,

end

of

period

(000's)

........

$4,985

$4,675

$4,987

$4,354

$4,745

$5,807

a

Based

on

average

daily

shares

outstanding.

b

Amount

rounds

to

less

than

$0.001

per

share.

c

Total

return

is

not

annualized

for

periods

less

than

one

year.

d

Ratios

are

annualized

for

periods

less

than

one

year.

e

Benefit

of

expense

reduction

rounds

to

less

than

0.01%.

f

Includes

one-time

proxy

cost

of

0.01%.

g

Reflects

a

voluntary

waiver

of

certain

Fund

expenses

in

effect

during

the

period

relating

to

the

enhancements

of

certain

annualized

net

yields

of

the

Fund.

See

Note

3(g).

Putnam

Money

Market

Fund

Schedule

of

Investments

(unaudited),

March

31,

2026

franklintempleton.com

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

Semiannual

Report

a

a

#### Principal

#### Amount
a

#### Value

#### Certificates

#### of

#### Deposit

#### 11.8%
Banco

Santander

SA

,

4%,

4/08/26

.......................................................

$

4,750,000

$

4,750,017

4%,

12/11/26

.......................................................

4,750,000

4,750,000

9,500,017

Bank

of

America

Corp.,

3.96%,

12/28/26

..................................

4,500,000

4,500,000

a

Bank

of

America

NA

,

3.99%,

4/09/26

.....................................................

4,000,000

4,000,000

3.9%,

10/02/26

.....................................................

4,750,000

4,750,000

4%,

12/04/26

......................................................

4,850,000

4,850,000

13,600,000

a

Bank

of

Montreal

,

3.97%,

7/09/26

.....................................................

4,500,000

4,500,922

3.96%,

8/11/26

.....................................................

4,500,000

4,500,000

9,000,922

a

Bank

of

Nova

Scotia

(The)

,

3.87%,

6/22/26

.....................................................

4,750,000

4,750,000

3.98%,

12/03/26

....................................................

6,250,000

6,250,000

11,000,000

a

Canadian

Imperial

Bank

of

Commerce

,

3.93%,

3/11/27

.....................................................

4,500,000

4,500,000

3.97%,

4/09/27

.....................................................

4,500,000

4,500,000

9,000,000

Cooperatieve

Rabobank

UA,

3.9%,

4/06/26

................................

9,000,000

9,000,000

KBC

Asset

Management

SA,

3.9%,

12/10/26

...............................

4,500,000

4,500,000

Royal

Bank

of

Canada

,

3.95%,

6/29/26

.....................................................

9,000,000

9,000,000

4.03%,

3/12/27

.....................................................

4,500,000

4,500,000

13,500,000

Sumitomo

Mitsui

Banking

Corp.,

3.83%,

9/03/26

............................

4,500,000

4,500,000

Svenska

Handelsbanken

AB,

3.85%,

12/09/26

.............................

4,500,000

4,500,000

Toronto-Dominion

Bank

(The),

3.89%,

4/02/26

..............................

4,500,000

4,500,000

Wells

Fargo

Bank

NA

,

3.8%,

9/16/26

......................................................

4,500,000

4,500,000

3.75%,

12/17/26

....................................................

4,500,000

4,500,000

3.75%,

1/26/27

.....................................................

4,500,000

4,500,000

13,500,000

#### Total

#### Certificates

#### of

#### Deposit

#### (Cost

#### $110,600,939)

#### ................................

#### 110,600,939

#### Commercial

#### Papers

#### 36.1%
b

ABN

AMRO

Funding

USA

LLC

,

c

144A,

3.751%,

4/02/26

...............................................

4,400,000

4,399,542

c

144A,

3.904%,

4/09/26

...............................................

4,000,000

3,996,533

c

144A,

3.754%,

8/10/26

...............................................

5,000,000

4,932,681

c

144A,

3.774%,

9/02/26

...............................................

4,500,000

4,428,582

17,757,338

Putnam

Money

Market

Fund

Schedule

of

Investments

(unaudited)

franklintempleton.com

Semiannual

Report

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

a

a

#### Principal

#### Amount
a

#### Value

#### Commercial

#### Papers
(continued)

b

Australia

&

New

Zealand

Banking

Group

Ltd.

,

c

144A,

3.827%,

6/05/26

...............................................

$

4,650,000

$

4,618,096

c

144A,

3.715%,

7/23/26

...............................................

4,500,000

4,448,161

c

144A,

3.858%,

8/20/26

...............................................

4,625,000

4,556,165

c

144A,

3.809 %,

9/16/26

...............................................

4,500,000

4,421,460

18,043,882

a

Bank

of

Montreal

,

b

3.781%,

4/28/26

....................................................

4,700,000

4,686,711

4.039%,

4/02/27

....................................................

4,500,000

4,500,000

9,186,711

b,c

Barclays

Bank

plc,

144A,

3.755%,

4/13/26

.................................

4,500,000

4,494,375

b

BPCE

SA

,

c

144A,

3.923%,

4/07/26

...............................................

4,500,000

4,497,060

c

144A,

3.757%,

7/02/26

...............................................

4,800,000

4,754,368

c

144A,

3.737%,

11/12/26

..............................................

4,500,000

4,397,484

13,648,912

b,c

Chariot

Funding

LLC,

144A,

3.753%,

4/08/26

..............................

4,000,000

3,997,083

a

Commonwealth

Bank

of

Australia

,

c

144A,

4.066%,

4/09/26

...............................................

6,750,000

6,750,000

c

144A,

3.993%,

7/31/26

...............................................

3,250,000

3,250,000

c

144A,

3.979%,

3/04/27

...............................................

4,500,000

4,500,000

14,500,000

b

Cooperatieve

Rabobank

UA

,

3.789%,

6/10/26

....................................................

4,600,000

4,566,369

3.89%,

9/16/26

.....................................................

4,500,000

4,419,780

8,986,149

b

Credit

Agricole

Corporate

and

Investment

Bank

SA,

3.886%,

6/03/26

.............

4,800,000

4,767,576

b,c

Danske

Bank

A/S,

144A,

3.692%,

5/27/26

.................................

4,750,000

4,722,883

b,c

DNB

Bank

ASA,

144A,

3.884%,

4/09/26

..................................

4,500,000

4,496,120

b

Export

Development

Canada

,

3.679%,

4/24/26

....................................................

4,750,000

4,738,862

3.847%,

5/14/26

....................................................

4,500,000

4,479,414

9,218,276

b

Exxon

Mobil

Corp.,

3.742%,

4/30/26

.....................................

5,300,000

5,284,075

b,c

Fairway

Finance

Co.

LLC,

144A,

3.779%,

6/10/26

...........................

4,500,000

4,467,188

ING

Bank

NV,

3.894%,

9/08/26

.........................................

4,500,000

4,500,000

a

ING

US

Funding

LLC

,

b,c

144A,

3.813%,

5/01/26

...............................................

4,625,000

4,610,354

c

144A,

3.954%,

7/06/26

...............................................

5,500,000

5,500,000

10,110,354

b,c

John

Deere

Financial,

Inc.,

144A,

3.687%,

5/13/26

..........................

4,800,000

4,779,448

b

Johnson

&

Johnson

,

c

144A,

3.705%,

4/14/26

...............................................

4,500,000

4,493,988

c

144A,

3.713%,

5/04/26

...............................................

4,500,000

4,484,737

8,978,725

b

Liberty

Street

Funding

LLC

,

c

144A,

3.714%,

5/06/26

...............................................

5,000,000

4,982,014

c

144A,

3.786%,

6/04/26

...............................................

4,500,000

4,469,920

9,451,934

Putnam

Money

Market

Fund

Schedule

of

Investments

(unaudited)

franklintempleton.com

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

Semiannual

Report

a

a

#### Principal

#### Amount
a

#### Value

#### Commercial

#### Papers
(continued)

b

Lloyds

Bank

plc

,

3.815%,

5/07/26

....................................................

$

4,700,000

$

4,682,141

3.754%,

7/20/26

....................................................

4,500,000

4,448,988

3.902%,

9/17/26

....................................................

4,500,000

4,419,091

13,550,220

b,c

Mitsubishi

UFJ

Trust

&

Banking

Corp.,

144A,

3.733%,

5/05/26

..................

4,500,000

4,484,190

b

Mizuho

Bank

Ltd.

,

3.688%,

4/20/26

....................................................

4,500,000

4,491,260

c

144A,

3.759%,

5/06/26

...............................................

4,500,000

4,483,616

c

144A,

3.775%,

5/20/26

...............................................

4,500,000

4,477,000

c

144A,

4.042%,

9/23/26

...............................................

4,500,000

4,413,266

17,865,142

b

MUFG

Bank

Ltd.,

3.866%,

5/11/26

......................................

4,500,000

4,480,750

a

National

Australia

Bank

Ltd.

,

b,c

144A,

3.699%,

8/03/26

...............................................

4,500,000

4,443,425

c

144A,

3.927%,

11/24/26

..............................................

4,750,000

4,750,000

c

144A,

3.958%,

2/09/27

...............................................

4,500,000

4,500,000

13,693,425

b

National

Bank

of

Canada

,

c

144A,

3.703%,

5/04/26

...............................................

4,750,000

4,733,933

c

144A,

3.886%,

7/20/26

...............................................

4,500,000

4,447,200

c

144A,

3.759%,

7/31/26

...............................................

4,700,000

4,641,392

13,822,525

b,c

Nationwide

Building

Society,

144A,

3.733%,

5/18/26

.........................

4,850,000

4,826,477

a

Nordea

Bank

Abp

,

b,c

144A,

3.92%,

5/18/26

................................................

4,500,000

4,477,087

c

144A,

3.914%,

6/23/26

...............................................

4,500,000

4,500,000

8,977,087

b

NRW

Bank

,

c

144A,

3.881%,

4/02/26

...............................................

4,000,000

3,999,569

c

144A,

3.674%,

4/10/26

...............................................

4,500,000

4,495,871

8,495,440

b,c

Procter

&

Gamble

Co.

(The),

144A,

3.695%,

6/05/26

.........................

4,500,000

4,470,181

b,c

Royal

Bank

of

Canada,

144A,

3.876%,

6/01/26

.............................

4,500,000

4,470,644

b

Santander

UK

plc,

3.722%,

5/27/26

......................................

5,000,000

4,971,222

b,c

Skandinaviska

Enskilda

Banken

AB,

144A,

3.703%,

8/10/26

...................

4,500,000

4,440,231

b

Sumitomo

Mitsui

Trust

Bank

Ltd.

,

c

144A,

3.765%,

4/13/26

...............................................

4,500,000

4,494,360

c

144A,

3.814%,

5/05/26

...............................................

4,575,000

4,558,581

9,052,941

c

Svenska

Handelsbanken

AB,

144A,

3.954%,

4/22/26

.........................

4,450,000

4,450,000

b

Swedbank

AB

,

c

144A,

3.901%,

4/16/26

...............................................

4,000,000

3,993,508

c

144A,

3.737%,

7/28/26

...............................................

4,500,000

4,445,573

8,439,081

Putnam

Money

Market

Fund

Schedule

of

Investments

(unaudited)

franklintempleton.com

Semiannual

Report

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

a

a

#### Principal

#### Amount
a

#### Value

#### Commercial

#### Papers
(continued)

Toronto-Dominion

Bank

(The)

,

b,c

144A,

3.706%,

5/12/26

...............................................

$

4,500,000

$

4,481,089

c

144A,

3.999%,

3/25/27

...............................................

4,800,000

4,800,000

9,281,089

b,c

TotalEnergies

Capital

SA,

144A,

3.828%,

4/20/26

...........................

4,500,000

4,490,927

b

Toyota

Credit

de

Puerto

Rico

Corp.,

3.853%,

5/26/26

.........................

2,500,000

2,485,372

b

Toyota

Motor

Credit

Corp.

,

3.756%,

4/14/26

....................................................

3,500,000

3,495,261

3.756%,

8/17/26

....................................................

5,000,000

4,929,083

8,424,344

b,c

Unilever

Finance

Netherlands

BV,

144A,

3.703%,

4/08/26

.....................

9,000,000

8,993,525

b,c

Walmart,

Inc.,

144A,

3.758%,

6/11/26

....................................

4,500,000

4,466,896

Westpac

Banking

Corp.

,

c

144A,

4.086%,

4/13/26

...............................................

4,500,000

4,500,000

b,c

144A,

3.735%,

1/21/27

...............................................

4,500,000

4,366,697

8,866,697

#### Total

#### Commercial

#### Papers

#### (Cost

#### $338,889,435)

#### ..................................

#### 338,889,435

#### U.S.

#### Government

#### and

#### Agency

#### Securities

#### 0.5%
b

U.S.

Treasury

Bills,

3.609%,

3/18/27

.....................................

4,700,000

4,540,300

#### Total

#### U.S.

#### Government

#### and

#### Agency

#### Securities

#### (Cost

#### $4,540,300)

#### ..................

#### 4,540,300

#### Repurchase

#### Agreements

#### 51.6%
d

Joint

tri-party

repurchase

agreement

with

Banc

of

America

Securities

LLC,

3.67%,

4/01/26

(Maturity

Value

$55,697,088)

Collateralized

by

Agency

Mortgage-Backed

Securities,

3%

-

7%,

11/01/35

-

2/15/61

(valued

at

$56,805,240)

.............................................

55,691,411

55,691,411

d

Joint

tri-party

repurchase

agreement

with

Bank

of

Nova

Scotia

(The),

3.66%,

4/01/26

(Maturity

Value

$8,005,608)

Collateralized

by

U.S.

Treasury

Bonds,

0.25%

-

0.75%,

2/15/42

-

2/15/50

and

U.S.

Treasury

Notes,

0.125%

-

4.375%,

4/30/28

-

5/15/34

(valued

at

$8,165,728)

......

8,004,794

8,004,794

d

Joint

tri-party

repurchase

agreement

with

BNP

Paribas

Securities

Corp.,

3.67%,

4/01/26

(Maturity

Value

$35,989,672)

Collateralized

by

Agency

Mortgage-Backed

Securities,

1.97%

-

7%,

12/01/27

-

4/01/56

(valued

at

$36,709,466)

.......................................

35,986,004

35,986,004

d

Joint

tri-party

repurchase

agreement

with

Citigroup

Global

Markets,

Inc.,

3.67%,

4/01/26

(Maturity

Value

$55,437,250)

Collateralized

by

U.S.

Treasury

Bonds,

2.125%,

2/15/41

and

U.S.

Treasury

Notes,

2.375%

-

4.625%,

9/15/28

-

10/15/28

(valued

at

$56,540,249)

................

55,431,599

55,431,599

d

Joint

tri-party

repurchase

agreement

with

HSBC

Securities

USA,

Inc.,

3.67%,

4/01/26

(Maturity

Value

$114,365,861)

Collateralized

by

Agency

Mortgage-Backed

Securities,

1.17%

-

7.5%,

8/01/30

-

3/01/56

(valued

at

$116,653,177)

......................................

114,354,203

114,354,203

d

Joint

tri-party

repurchase

agreement

with

Royal

Bank

of

Canada,

3.67%,

4/01/26

(Maturity

Value

$53,751,954)

Collateralized

by

U.S.

Treasury

Bonds,

1.625%

-

4.625%,

2/15/40

-

11/15/54

and

U.S.

Treasury

Notes,

3.625%

-

4.625%,

4/30/27

-

2/15/34

(valued

at

$54,821,419)

.

53,746,475

53,746,475

Putnam

Money

Market

Fund

Schedule

of

Investments

(unaudited)

franklintempleton.com

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

Semiannual

Report

a

a

#### Principal

#### Amount
a

#### Value

#### Repurchase

#### Agreements
(continued)

e

Tri-party

repurchase

agreement

with

Goldman

Sachs

&

Co.

LLC,

3.67%,

4/01/26

(Maturity

Value

$161,623,475)

Collateralized

by

Agency

Mortgage-Backed

Securities,

3.5%

-

6.5%,

2/01/29

-

3/01/62

(valued

at

$164,839,141)

......................................

$

161,607,000

$

161,607,000

#### Total

#### Repurchase

#### Agreements

#### (Cost

#### $484,821,486)

#### ..............................

#### 484,821,486

#### Total

#### Short

#### Term

#### Investments

#### (Cost

#### $938,852,160)

#### ...............................

#### 938,852,160

#### a

#### Total

#### Investments

#### (Cost

#### $938,852,160)

#### 100.0%

#### ..................................

#### $938,852,160

#### Other

#### Assets,

#### less

#### Liabilities

#### 0.0%

#### †
............................................

#### 64,572

#### Net

#### Assets

#### 100.0%

#### ...........................................................

#### $938,916,732
†

Rounds

to

less

than

0.1%

of

net

assets.

a

The

coupon

rate

shown

represents

the

rate

at

period

end.

b

The

rate

shown

represents

the

yield

at

period

end.

c

Security

was

purchased

pursuant

to

Rule

144A

or

Regulation

S

under

the

Securities

Act

of

1933. 144A

securities

may

be

sold

in

transactions

exempt

from

registration

only

to

qualified

institutional

buyers

or

in

a

public

offering

registered

under

the

Securities

Act

of

1933. Regulation

S

securities

cannot

be

sold

in

the

United

States

without

either

an

effective

registration

statement

filed

pursuant

to

the

Securities

Act

of

1933,

or

pursuant

to

an

exemption

from

registration.

At

March

31,

2026,

the

aggregate

value

of

these

securities

was

$258,543,480,

representing

27.5%

of

net

assets.

d

See

Note

1(b)

regarding

joint

repurchase

agreement.

e

See

Note

1(b)

regarding

repurchase

agreement.

Putnam

Money

Market

Fund

Financial

Statements

Statement

of

Assets

and

Liabilities

March

31,

2026

(unaudited)

franklintempleton.com

Semiannual

Report

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

#### Putnam

#### Money

#### Market

#### Fund
Assets:

Investments

in

securities:

Cost

-

Unaffiliated

issuers

...................................................................

$454,030,674

Cost

-

Unaffiliated

repurchase

agreements

......................................................

484,821,486

Value

-

Unaffiliated

issuers

..................................................................

$454,030,674

Value

-

Unaffiliated

repurchase

agreements

......................................................

484,821,486

Receivables:

Capital

shares

sold

........................................................................

2,285,368

Interest

.................................................................................

713,674

Prepaid

expenses

..........................................................................

224,301

Other

assets

..............................................................................

Total

assets

..........................................................................

942,075,577

Liabilities:

Payables:

Capital

shares

redeemed

...................................................................

2,238,679

Management

fees

.........................................................................

204,224

Administrative

fees

........................................................................

3,760

Transfer

agent

fees

........................................................................

388,095

Trustees'

fees

and

expenses

.................................................................

252,541

Distributions

to

shareholders

.................................................................

17,626

Accrued

expenses

and

other

liabilities

...........................................................

53,920

Total

liabilities

.........................................................................

3,158,845

Net

assets,

at

value

.................................................................

$938,916,732

Net

assets

consist

of:

Paid-in

capital

.............................................................................

$938,785,099

Total

distributable

earnings

(losses)

.............................................................

131,633

Net

assets,

at

value

.................................................................

$938,916,732

Putnam

Money

Market

Fund

Financial

Statements

Statement

of

Assets

and

Liabilities

(continued)

March

31,

2026

(unaudited)

franklintempleton.com

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

Semiannual

Report

#### Putnam

#### Money

#### Market

#### Fund

#### Class

#### A:
Net

assets,

at

value

.......................................................................

$919,615,201

Shares

outstanding

........................................................................

919,490,323

Net

asset

value

per

share

a

,b

..................................................................

$1.00

#### Class

#### C:
Net

assets,

at

value

.......................................................................

$14,316,332

Shares

outstanding

........................................................................

14,315,302

Net

asset

value

per

share

a

,b

..................................................................

$1.00

#### Class

#### R:
Net

assets,

at

value

.......................................................................

$4,985,199

Shares

outstanding

........................................................................

4,984,545

Net

asset

value

per

share

b

..................................................................

$1.00

a

Redemption

price

is

equal

to

net

asset

value

less

contingent

deferred

sales

charges,

if

applicable.

b

Net

asset

value

per

share

may

not

recalculate

due

to

rounding.

Putnam

Money

Market

Fund

Financial

Statements

Statement

of

Operations

for

the

six

months

ended

March

31,

2026

(unaudited)

franklintempleton.com

Semiannual

Report

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

#### Putnam

#### Money

#### Market

#### Fund
Investment

income:

Interest:

Unaffiliated

issuers

........................................................................

$18,296,644

Expenses:

Management

fees

(Note

a)

...................................................................

1,181,195

Administrative

fees

(Note

b)

..................................................................

7,857

Transfer

agent

fees:

(Note

3e)

&nbsp;&nbsp;&nbsp;&nbsp;Class

A

................................................................................

485,463

&nbsp;&nbsp;&nbsp;&nbsp;Class

C

................................................................................

4,608

&nbsp;&nbsp;&nbsp;&nbsp;Class

R

................................................................................

2,760

Custodian

fees

............................................................................

1,420

Reports

to

shareholders

fees

..................................................................

48,429

Registration

and

filing

fees

....................................................................

15,957

Professional

fees

...........................................................................

49,921

Trustees'

fees

and

expenses

(Note

f)

...........................................................

17,445

Other

....................................................................................

14,457

Total

expenses

.........................................................................

1,829,512

Expense

reductions

(Note

4)

...............................................................

(17,925)

Net

expenses

.........................................................................

1,811,587

Net

investment

income

................................................................

16,485,057

Net

realized

gain

(loss)

from:

Investments:

Unaffiliated

issuers

......................................................................

2,401

Net

increase

(decrease)

in

net

assets

resulting

from

operations

..........................................

$16,487,458

Putnam

Money

Market

Fund

Financial

Statements

Statements

of

Changes

in

Net

Assets

franklintempleton.com

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

Semiannual

Report

#### Putnam

#### Money

#### Market

#### Fund

#### Six

#### Months

#### Ended

#### March

#### 31,

#### 2026
(unaudited)

#### Year

#### Ended

#### September

#### 30,

#### 2025
Increase

(decrease)

in

net

assets:

Operations:

Net

investment

income

.................................................

$16,485,057

$37,016,839

Net

realized

gain

(loss)

.................................................

2,401

114,759

Net

increase

(decrease)

in

net

assets

resulting

from

operations

................

16,487,458

37,131,598

Distributions

to

shareholders:

Class

A

.............................................................

(16,239,305)

(36,605,015)

Class

C

.............................................................

(153,306)

(311,489)

Class

R

.............................................................

(92,467)

(190,298)

Total

distributions

to

shareholders

..........................................

(16,485,078)

(37,106,802)

Capital

share

transactions:

(Note

2)

Class

A

.............................................................

30,974,830

13,131,940

Class

C

.............................................................

7,904,033

(8,349,541)

Class

R

.............................................................

310,628

(312,452)

Total

capital

share

transactions

............................................

39,189,491

4,469,947

Net

increase

(decrease)

in

net

assets

...................................

39,191,871

4,494,743

Net

assets:

Beginning

of

period

.....................................................

899,724,861

895,230,118

End

of

period

..........................................................

$938,916,732

$899,724,861

Putnam

Money

Market

Fund

Notes

to

Financial

Statements

(unaudited)

franklintempleton.com

Semiannual

Report

1. #### Organization

#### and

#### Significant

#### Accounting

#### Policies
Putnam

Money

Market

Fund (Fund)

is

registered

under

the

Investment

Company

Act

of

1940

(1940

Act)

as

an

open-end

management

investment

company.

The Fund

follows

the

accounting

and

reporting

guidance

in

Financial

Accounting

Standards

Board

(FASB)

Accounting

Standards

Codification

Topic

946,

Financial

Services

–

Investment

Companies

(ASC

946)

and

applies

the

specialized

accounting

and

reporting

guidance

in

U.S.

Generally

Accepted

Accounting

Principles

(U.S.

GAAP),

including,

but

not

limited

to,

ASC

946. The

Fund

offers

three classes

of

shares:

Class

A,

Class

C

and

Class

R. Class

C

shares

automatically

convert

to

Class

A

shares

on

a

monthly

basis,

after

they

have

been

held

for

years.

Each

class

of

shares

may

differ

by

its

initial

sales

load,

contingent

deferred

sales

charges,

voting

rights

on

matters

affecting

a

single

class,

its

exchange

privilege

and

fees

due

to

differing

arrangements

for

distribution

and

transfer

agent

fees.

The

following

summarizes

the Fund's

significant

accounting

policies.

a. #### Financial

#### Instrument

#### Valuation
Securities

are

valued

at

amortized

cost,

which

approximates

fair

value.

Amortized

cost

is

an

income-based

approach

which

involves

valuing

an

instrument

at

its

cost

and

thereafter

assuming

a

constant

amortization

to

maturity

of

any

discount

or

premium.

Under

compliance

policies

and

procedures

approved

by

the

Fund's Board

of

Trustees

(the

Board),

the

Board

has

designated

the

Fund's

investment

manager

as

the

valuation

designee

and

has

responsibility

for

oversight

of

valuation.

The

investment

manager

is

assisted

by

the

Fund's administrator

in

performing

this

responsibility,

including

leading

the

cross-functional

Valuation

Committee

(VC).

b. #### Repurchase

#### Agreements
The

Fund

enters

into

repurchase

agreements.

Repurchase

agreements

are

accounted

for

as

a

loan

by

the

Fund

to

the

seller,

collateralized

by

securities

which

are

delivered

to

the

Fund's

custodian.

The

fair

value,

including

accrued

interest,

of

the

initial

collateralization

is

required

to

be

at

least

102%

of

the

dollar

amount

invested

by

the

Fund,

with

the

value

of

the

underlying

securities

marked

to

market

daily

to

maintain

coverage

of

at

least

100%.

The

Fund

may

also

enter

into

joint

repurchase

agreements

whereby

its

uninvested

cash

balance

is

deposited

into

a

joint

cash

account

with

other

funds

managed

by

the

investment

manager

or

an

affiliate

of

the

investment

manager

and

is

used

to

invest

in

one

or

more

repurchase

agreements.

The

value

and

face

amount

of

the

joint

repurchase

agreement

are

allocated

to

the

funds

based

on

their

pro-rata

interest.

Repurchase

agreements

are

subject

to

the

terms

of

Master

Repurchase

Agreements

(MRAs)

with

approved

counterparties

(sellers).

The

MRAs

contain

various

provisions,

including

but

not

limited

to

events

of

default

and

maintenance

of

collateral

for

repurchase

agreements.

In

the

event

of

default

by

either

the

seller

or

the

Fund,

certain

MRAs

may

permit

the

non-defaulting

party

to

net

and

close-out

all

transactions,

if

any,

traded

under

such

agreements.

The

Fund

may

sell

securities

it

holds

as

collateral

and

apply

the

proceeds

towards

the

repurchase

price

and

any

other

amounts

owed

by

the

seller

to

the Fund

in

the

event

of

default

by

the

seller.

This

could

involve

costs

or

delays

in

addition

to

a

loss

on

the

securities

if

their

value

falls

below

the

repurchase

price

owed

by

the

seller.

All

repurchase

agreements

held

by

the Fund

at

period

end,

as

indicated

in

the Schedule

of

Investments,

had

been

entered

into

on

March

31,

2026. c. #### Income

#### Taxes
It

is the Fund's

policy

to

qualify

as

a

regulated

investment

company

under

the

Internal

Revenue

Code. The Fund

intends

to

distribute

to

shareholders

substantially

all

of

its

taxable

income

and

net

realized

gains

to

relieve

it

from

federal

income

and

excise

taxes.

As

a

result,

no

provision

for

U.S.

federal

income

taxes

is

required.

The Fund

may

recognize

an

income

tax

liability

related

to

its

uncertain

tax

positions

under

U.S.

GAAP

when

the

uncertain

tax

position

has

a

less

than

50%

probability

that

it

will

be

sustained

upon

examination

by

the

tax

authorities

based

on

its

technical

merits.

As

of

March

31,

2026, the Fund

has

determined

that

no

tax

liability

is

required

in

its

financial

statements

related

to

uncertain

tax

positions

for

any

open

tax

years

(or

expected

to

be

taken

in

future

tax

years).

The

Fund's

federal

and

state

income

and

federal

excise

tax

returns

for

the

prior

three

fiscal

years

are

subject

to

examination

by

the

Internal

Revenue

Service

and

state

departments

of

revenue.

d. #### Security

#### Transactions,

#### Investment

#### Income,

#### Expenses

#### and

#### Distributions
Security

transactions

are

accounted

for

on

trade

date.

Realized

gains

and

losses

on

security

transactions

are

determined

on

a

specific

identification

basis.

Interest

income

(including

interest

income

from

payment-in-kind

securities,

if

Putnam

Money

Market

Fund

Notes

to

Financial

Statements

(unaudited)

franklintempleton.com

Semiannual

Report

any)

and

estimated

expenses

are

accrued

daily.

Amortization

of

premium

and

accretion

of

discount

on

debt

securities

are

included

in

interest

income.

Dividends

from

net

investment

income

are

normally

declared

daily;

these

dividends

may

be

reinvested

or

paid

monthly

to

shareholders.

Distributions

from

realized

capital

gains

and

other

distributions,

if

any,

are

recorded

on

the

ex-dividend

date.

Distributable

earnings

are

determined

according

to

income

tax

regulations

(tax

basis)

and

may

differ

from

earnings

recorded

in

accordance

with

U.S.

GAAP.

These

differences

may

be

permanent

or

temporary.

Permanent

differences

are

reclassified

among

capital

accounts

to

reflect

their

tax

character.

These

reclassifications

have

no

impact

on

net

assets

or

the

results

of

operations.

Temporary

differences

are

not

reclassified,

as

they

may

reverse

in

subsequent

periods.

Realized

gains

and

losses

and

net

investment

income,

excluding

class

specific

expenses,

are

allocated

daily

to

each

class

of

shares

based

upon

the

relative

proportion

of

net

assets

of

each

class.

Differences

in

per

share

distributions

by

class

are

generally

due

to

differences

in

class

specific

expenses.

Net

investment

income,

excluding

class

specific

expenses,

is

allocated

daily

to

each

class

of

shares

based

upon

the

relative

value

of

the

settled

shares

of

each

class.

Realized

gains

and

losses

are

allocated

daily

to

each

class

of

shares

based

upon

the

relative

proportion

of

net

assets

of

each

class.

Differences

in

per

share

distributions

by

class

are

generally

due

to

differences

in

class

specific

expenses.

e. #### Accounting

#### Estimates
The

preparation

of

financial

statements

in

accordance

with

U.S.

GAAP

requires

management

to

make

estimates

and

assumptions

that

affect

the

reported

amounts

of

assets

and

liabilities

at

the

date

of

the

financial

statements

and

the

amounts

of

income

and

expenses

during

the

reporting

period.

Actual

results

could

differ

from

those

estimates.

f. #### Guarantees

#### and

#### Indemnifications
Under

the Fund's

organizational

documents,

its

officers

and trustees

are

indemnified

by

the

Fund against

certain

liabilities

arising

out

of

the

performance

of

their

duties

to

the

Fund.

Additionally,

in

the

normal

course

of

business,

the

Fund

enters

into

contracts

with

service

providers

that

contain

general

indemnification

clauses.

The Fund's

maximum

exposure

under

these

arrangements

is

unknown

as

this

would

involve

future

claims

that

may

be

made

against

the Fund

that

have

not

yet

occurred.

Currently,

the Fund

expects

the

risk

of

loss

to

be

remote.

2. #### Shares

#### of

#### Beneficial

#### Interest
At

March

31,

2026,

there

were

an

unlimited

number

of

shares

authorized

(without

par

value).

Transactions

in

the

Fund's

shares

at

$1.00

per

share

were

as

follows:

#### Six

#### Months

#### Ended

#### March

#### 31,

#### 2026

#### Year

#### Ended

#### September

#### 30,

#### 2025

#### Class

#### A

#### Shares:
Shares

sold

a

............................................................

$233,704,566

$441,009,730

Shares

issued

in

reinvestment

of

distributions

...................................

16,136,495

36,186,083

Shares

redeemed

........................................................

(218,866,231)

(464,063,873)

Net

increase

(decrease)

...................................................

$30,974,830

$13,131,940

#### Class

#### C

#### Shares:
Shares

sold

............................................................

$9,583,283

$4,588,243

Shares

issued

in

reinvestment

of

distributions

...................................

152,484

285,108

Shares

redeemed

a

.......................................................

(1,831,734)

(13,222,892)

Net

increase

(decrease)

...................................................

$7,904,033

$(8,349,541)

1. #### Organization

#### and

#### Significant

#### Accounting

#### Policies
(continued)

d. #### Security

#### Transactions,

#### Investment

#### Income,

#### Expenses

#### and

#### Distributions
(continued)

Putnam

Money

Market

Fund

Notes

to

Financial

Statements

(unaudited)

franklintempleton.com

Semiannual

Report

3. #### Transactions

#### with

#### Affiliates
Franklin

Resources,

Inc.

is

the

holding

company

for

various

subsidiaries

that

together

are

referred

to

as

Franklin

Templeton.

Certain

officers

and trustees

of

the Fund are

also

officers

and/or directors

of

the

following

subsidiaries:

a. #### Management

#### Fees
The

Fund

pays Advisers

a

management

fee

(based

on

the

Fund's

average

net

assets

and

computed

and

paid

monthly)

at

annual

rates

that

may

vary

based

on

the

average

of

the

aggregate

net

assets

of

all

open-end

mutual

funds

sponsored

by

Putnam

Management

(including

open-end

funds

managed

by

affiliates

of

Putnam

Management

that

have

been

deemed

to

be

sponsored

by

Putnam

Management

for

this

purpose)

(excluding

net

assets

of

such

funds

that

are

invested

in,

or

that

are

invested

in

by,

other

such

funds

to

the

extent

necessary

to

avoid

"double

counting"

of

those

assets).

Such

annual

rates

may

vary

as

follows:

For

the

period

ended

March

31,

2026,

the

annualized

gross

effective

investment

management

fee

rate

was 0.257%

of

the

Fund's

average daily

net

assets.

#### Six

#### Months

#### Ended

#### March

#### 31,

#### 2026

#### Year

#### Ended

#### September

#### 30,

#### 2025

#### Class

#### R

#### Shares:
Shares

sold

............................................................

$2,898,206

$3,611,288

Shares

issued

in

reinvestment

of

distributions

...................................

90,338

185,304

Shares

redeemed

........................................................

(2,677,916)

(4,109,044)

Net

increase

(decrease)

...................................................

$310,628

$(312,452)

a

May

include

a

portion

of

Class

C

shares

that

were

automatically

converted

to

Class

A. #### Subsidiary

#### Affiliation
Franklin

Advisers,

Inc.

(Advisers)

Investment

manager

Franklin

Templeton

Investment

Management

Limited

(FTIML)

Subadvisor

Putnam

Investment

Management,

LLC

(Putnam

Management)

Subadvisor

Franklin

Templeton

Services,

LLC

(FT

Services)

Administrative

manager

Franklin

Distributors,

LLC

(Distributors)

Principal

underwriter

Putnam

Investor

Services,

Inc.

(PSERV)

Transfer

agent

#### Annualized

#### Fee

#### Rate

#### Net

#### Assets
0.440%

of

the

first

$5

billion,

0.390%

of

the

next

$5

billion,

0.340%

of

the

next

$10

billion,

0.290%

of

the

next

$10

billion,

0.240%

of

the

next

$50

billion,

0.220%

of

the

next

$50

billion,

0.210%

of

the

next

$100

billion

and

0.205%

of

any

excess

thereafter.

2. #### Shares

#### of

#### Beneficial

#### Interest
(continued)

Putnam

Money

Market

Fund

Notes

to

Financial

Statements

(unaudited)

franklintempleton.com

Semiannual

Report

Advisers

retained

Putnam

Management

as

subadvisor

for

the

Fund.

Pursuant

to

the

agreement,

Putnam

Management

provides

certain

advisory

and

related

services

to

the

Fund.

Advisers

pays

a

monthly

fee

to

Putnam

Management

based

on

the

costs

of

Putnam

Management

in

providing

these

services

to

the

Fund,

which

may

include

a

mark-up

not

to

exceed

15%

over

such

costs.

Under

a

subadvisory

agreement,

FTIML

provides

subadvisory

services

to

the

Fund.

The

subadvisory

fee

is

paid by Advisers

based

on

the

average

net

assets

managed

by

FTIML,

and

is

not

an

additional

expense

of

the

Fund.

b. #### Administrative

#### Fees
Under

an

agreement

with

Advisers,

FT

Services

provides

administrative

services

to

the

Fund.

The

fee

is

paid

by Advisers

based

on

the Fund's

average

daily

net

assets,

and

is

not

an

additional

expense

of

the

Fund.

The

Fund

reimburses

Advisers

an

allocated

amount

for

the

compensation

and

related

expenses

of

certain

officers

of

the

Fund

and

their

staff

who

provide

administrative

services

to

the

Fund.

The

aggregate

amount

of

all

such

reimbursements

is

determined

annually

by

the

Trustees.

c. #### Distribution

#### Fees
The

Fund

has

adopted

distribution

plans

(the

Plans)

with

respect

to

the

following

share

classes

pursuant

to

Rule

12b–1

under

the

1940

Act.

The

purpose

of

the

Plans

is

to

compensate

Distributors

for

services

provided

and

expenses

incurred

in

distributing

shares

of

the

Fund.

The

Plans

provide

payments

by

the

Fund

to

Distributors

at

an

annual

rate

of

up

to

the

following

amounts

(Maximum

%)

of

the

average

net

assets

attributable

to

each

class.

The

Trustees

have

approved

payment

by

the

Fund

at

the

following

annual

rate

(Approved

%)

of

the

average

net

assets

attributable

to

each

class.

d. #### Sales

#### Charges/Underwriting

#### Agreements
Front-end

sales

charges

and

contingent

deferred

sales

charges

(CDSC)

do

not

represent

expenses

of

the

Fund.

These

charges

are

deducted

from

the

proceeds

of

sales

of

fund

shares

prior

to

investment

or

from

redemption

proceeds

prior

to

remittance,

as

applicable.

Distributors

has

advised

the

Fund

of

the

following

commission

transactions

related

to

the

sales

and

redemptions

of

the

Fund's

shares

for

the

period:

e. #### Transfer

#### Agent

#### Fees
PSERV,

an

affiliate

of

Advisers,

provides

investor

servicing

agent

functions

to

the

Fund.

PSERV

received

fees

for

investor

servicing

for

Class

A,

Class

C

and

Class

R shares

that

included

(1) a

per

account

fee

for

each

direct

and

underlying

non-

defined

contribution

account

(retail

account)

of

the

Fund;

(2) a

specified

rate

of

the

Fund's

assets

attributable

to

defined

contribution

plan

accounts;

and

(3) a

specified

rate

based

on

the

average

net

assets

in

retail

accounts.

PSERV

has

agreed

that

the

aggregate

investor

servicing

fees

for

each

Fund's

retail

and

defined

contribution

accounts

for

these

share

classes

will

not

exceed

an

annual

rate

of

0.25%

of

the

Fund's

average

assets

attributable

to

such

accounts.

#### Maximum

#### %

#### Approved

#### %
Class

C

...................................................................

1.00%

0.00%

Class

R

...................................................................

1.00%

0.00%

CDSC

retained

..............................................................................

$727

3. #### Transactions

#### with

#### Affiliates
(continued)

a. #### Management

#### Fees
(continued)

Putnam

Money

Market

Fund

Notes

to

Financial

Statements

(unaudited)

franklintempleton.com

Semiannual

Report

f. #### Trustee

#### Fees
The

Fund

has

adopted

a

Trustee

Fee

Deferral

Plan

(the

Deferral

Plan)

which

allows

the

Trustees to

defer

the

receipt

of

all

or

a

portion

of

Trustees'

fees

payable

from

July

1,

1995

through

December

31,

2023. The

deferred

fees

remain

invested

in

certain

Putnam

funds

until

distribution

in

accordance

with

the

Deferral

Plan.

The

Fund

has

adopted

an

unfunded

noncontributory

defined

benefit

pension

plan

(the

Pension

Plan)

covering

all

Trustees

of

the

Fund

who

have

served

as

a

Trustee

for

at

least

five

years

and

were

first

elected

prior

to

2004. Benefits

under

the

Pension

Plan

are

equal

to

50%

of

the

Trustee's

average

annual

attendance

and

retainer

fees

for

the

three

years

ended

December

31,

2005. The

retirement

benefit

is

payable

during

a

Trustee's

lifetime,

beginning

the

year

following

retirement,

for

the

number

of

years

of

service

through

December

31,

2006. Pension

expense

for

the

Fund

is

included

in

the

Trustees' fees

and

expenses

in

the

Statement

of

Operations.

Accrued

pension

liability

is

included

in

Payable

for

Trustees' fees

and

expenses

in

the

Statement

of

Assets

and

Liabilities.

The

Trustees

have

terminated

the

Pension

Plan

with

respect

to

any

Trustee

first

elected

after

2003. g. #### Waiver

#### and

#### Expense

#### Reimbursements
Advisers has

contractually

agreed,

through

January

30,

2027,

to

waive

fees

and/or

reimburse

the

Fund's

expenses

to

the

extent

necessary

to

limit

the

cumulative

expenses

of

the

Fund,

exclusive

of

brokerage,

interest,

taxes,

investment-related

expenses,

extraordinary

expenses,

acquired

fund

fees

and

expenses

and

payments

under

the

Fund's

investor

servicing

contract,

investment

management

contract

and

distribution

plans,

on

a

fiscal

year-to-date

basis

to

an

annual

rate

of

0.20%

of

the

Fund's

average

net

assets

over

such

fiscal

year-to-date

period.

Total

expenses

waived

or

paid

are

not

subject

to

recapture

subsequent

to

the

Fund's

fiscal

year

end.

Advisers

may

from

time

to

time

voluntarily

undertake

to

waive

fees

and/or

reimburse

certain

fund

expenses

in

order

to

enhance

the

annualized

net

yield

for

the

Fund.

Any

such

waiver

or

reimbursement

would

be

voluntary

and

may

be

modified

or

discontinued

by

Advisers

at

any

time

without

notice.

For

the

reporting

period,

the

Fund's

expenses

were

not

reduced

as

a

result

of

this

limit.

4. #### Expense

#### Offset

#### Arrangement
The Fund has entered

into an

arrangement

with PSERV

whereby

credits

realized

as

a

result

of

uninvested

cash

balances

are

used

to

reduce

a

portion

of

the

Fund's

transfer

agent

fees.

During

the

period

ended

March

31,

2026,

the

fees

were

reduced

as

noted

in

the

Statement

of

Operations.

5. #### Income

#### Taxes
At

March

31,

2026,

the

cost

of

investments

for

book

and

income

tax

purposes

was

the

same.

6. #### Credit

#### Facility
The

Fund,

together

with

other

U.S.

registered

and

foreign

investment

funds

(collectively,

Borrowers),

managed

by

Franklin

Templeton,

are

borrowers

in

a

joint

syndicated

senior

unsecured

credit

facility

totaling

$2.995

billion

(Global

Credit

Facility)

which

matures

on

January

29,

2027. This

Global

Credit

Facility

provides

a

source

of

funds

to

the

Borrowers

for

temporary

and

emergency

purposes,

including

the

ability

to

meet

future

unanticipated

or

unusually

large

redemption

requests.

Under

the

terms

of

the

Global

Credit

Facility,

the

Fund

may,

in

addition

to

interest

charged

on

any

borrowings

made

by

the

Fund

and

other

costs

incurred

by

the

Fund,

pay

its

share

of

fees

and

expenses

incurred

in

connection

with

the

implementation

and

maintenance

of

the

Global

Credit

Facility,

based

upon

its

relative

share

of

the

aggregate

net

assets

of

all

of

the

Borrowers,

3. #### Transactions

#### with

#### Affiliates
(continued)

Putnam

Money

Market

Fund

Notes

to

Financial

Statements

(unaudited)

franklintempleton.com

Semiannual

Report

including

an

annual

commitment

fee

of

0.15%

based

upon

the

unused

portion

of

the

Global

Credit

Facility.

These

fees

are

reflected

in

other

expenses

in

the

Statement

of

Operations.

During

the

period

ended

March

31,

2026,

the Fund

did

not

use

the

Global

Credit

Facility.

7. #### Fair

#### Value

#### Measurements
The

Portfolio follows

a

fair

value

hierarchy

that

distinguishes

between

market

data

obtained

from

independent

sources

(observable

inputs)

and

the Portfolio's

own

market

assumptions

(unobservable

inputs).

These

inputs

are

used

in

determining

the

value

of

the

Portfolio's financial

instruments

and

are

summarized

in

the

following

fair

value

hierarchy:

Level

–

quoted

prices

in

active

markets

for

identical

financial

instruments

Level

–

other

significant

observable

inputs

(including

quoted

prices

for

similar

financial

instruments,

interest

rates,

prepayment

speed,

credit

risk,

etc.)

Level

–

significant

unobservable

inputs

(including

the Portfolio's

own

assumptions

in

determining

the

fair

value

of

financial

instruments)

The

input

levels

are

not

necessarily

an

indication

of

the

risk

or

liquidity

associated

with

financial

instruments

at

that

level.

Money

market

securities

may

be

valued

using

amortized

cost,

in

accordance

with

the

1940

Act.

Generally,

amortized

cost

reflects

the

current

fair

value

of

a

security,

but

since

the

value

is

not

obtained

from

a

quoted

price

in

an

active

market,

such

financial

instruments

were

valued

using

Level

inputs.

At

March

31,

2026,

all

of

the

Fund's investments

in

financial

instruments

carried

at

fair

value

were

valued

using

Level 2

inputs.

8. #### Operating

#### Segments
The Fund operates

as

a

single

operating

segment,

which

is

an

investment

portfolio.

The

portfolio

managers

assigned

to

the

Fund

within

the

Fund's

investment

manager serve

as

the

Chief

Operating

Decision

Maker

("CODM")

and

are

responsible

for

evaluating

the

Fund's

operating

results

and

allocating

resources

in

accordance

with

the

Fund's

investment

strategy.

Internal

reporting

provided

to

the

CODM

aligns

with

the

accounting

policies

and

measurement

principles

used

in

the financial

statements.

For

information

regarding

segment

assets,

segment

profit

or

loss,

and

significant

expenses,

refer

to

the Statement

of

Assets

and

Liabilities

and

the Statement

of

Operations,

along

with

the

related

notes

to

the financial

statements.

The Schedule

of

Investments

provides

details

of

the Fund's investments

that

generate

returns

such

as

interest,

dividends,

and

realized

gains

or

losses.

Performance

metrics,

including

expense

ratios,

are

disclosed

in

the Financial

Highlights.

9. #### Subsequent

#### Events
The

Fund

has

evaluated

subsequent

events

through

the

issuance

of

the

financial

statements

and

determined

that

no

events

have

occurred

that

require

disclosure.

6. #### Credit

#### Facility
(continued)

Putnam

Money

Market

Fund

franklintempleton.com

Semiannual

Report

#### Changes

#### In

#### and

#### Disagreements

#### with

#### Accountants
For

the

period

covered

by

this

report

Not

applicable.

#### Results

#### of

#### Meeting(s)

#### of

#### Shareholders
For

the

period

covered

by

this

report

Not

applicable.

#### Remuneration

#### Paid

#### to

#### Directors,

#### Officers

#### and

#### Others
For

the

period

covered

by

this

report

Refer

to

the

financial

statements

included

herein.

Remuneration

to

officers

is

paid

by

the

Fund's

investment

manager

according

to

the

terms

of

the

agreement.

#### Board

#### Approval

#### of

#### Management

#### and

#### Subadvisory

#### Agreements
For

the

period

covered

by

this

report

Not

applicable.

38904-SFSOI

05/26©

2026

Franklin

Templeton.

All

rights

reserved.

ITEM 8. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS FOR OPEN-END MANAGEMENT INVESTMENT COMPANIES.

The information is disclosed as part of the Financial Statements included in Item 7 of this Form N-CSR.

ITEM 9. PROXY DISCLOSURES FOR OPEN-END MANAGEMENT INVESTMENT COMPANIES.

The information is disclosed as part of the Financial Statements included in Item 7 of this Form N-CSR.

ITEM 10. REMUNERATION PAID TO DIRECTORS, OFFICERS, AND OTHERS OF OPEN-END MANAGEMENT INVESTMENT COMPANIES.

The information is disclosed as part of the Financial Statements included in Item 7 of this Form N-CSR.

ITEM 11. STATEMENT REGARDING BASIS FOR APPROVAL OF INVESTMENT ADVISORY CONTRACT.

The information is disclosed as part of the Financial Statements included in Item 7 of this Form N-CSR, as applicable.

ITEM 12. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable.

ITEM 13. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable.

ITEM 14. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS.

Not applicable.

---

| | |
|:---|:---|
| ITEM 15. | SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. |

---

There have been no changes to the procedures by which shareholders may recommend nominees to the Registrant's Board of Trustees that would require disclosure herein.

ITEM 16. CONTROLS AND PROCEDURES.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) The Registrants acknowledge the Staff's comment. In future filings on Form N-CSR,
 the certifications required by Rule 30a-2 and Item 19(a)(3) will include the designations "principal executive officer" and
 "principal financial officer" in the signature blocks, reflecting the capacity in which each signatory executes the certification,
 in conformity with the language of the Rule and Form N-CSR. The Registrants may also include each signatory's actual title with
 respect to the Funds alongside the required designation.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) During the period covered by this report, the Registrant transitioned to a new third-party
 service provider who performs certain accounting and administrative services for the Registrant that are subject to Franklin Templeton's
 oversight.

ITEM 17. DISCLOSURE OF SECURITIES LENDING ACTIVITIES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable.

ITEM 18. RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Not applicable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Not applicable.

ITEM 19. EXHIBITS.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) (1) Not applicable.

Exhibit 99.CODE ETH

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[(a) (3) Certifications pursuant to section 302 of the Sarbanes-Oxley Act of 2002 attached hereto.](pmmf-efp24651_ex99cert.htm)

Exhibit 99.CERT

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[(b) Certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 attached hereto.](pmmf-efp24651_ex99906cert.htm)

Exhibit 99.906CERT

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this Report to be signed on its behalf by the undersigned, there unto duly authorized.

**Putnam Money Market Fund**

---

| | |
|:---|:---|
| By: | /s/ Jonathan S. Horwitz |
|  | Jonathan S. Horwitz |
|  | Principal Executive Officer |
| Date: | May 29, 2026 |

---

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

---

| | |
|:---|:---|
| By: | /s/ Jonathan S. Horwitz |
|  | Jonathan S. Horwitz |
|  | Principal Executive Officer |
| Date: | May 29, 2026 |
| By: | /s/ Jeffrey White |
|  | Jeffrey White |
|  | Principal Financial Officer |
| Date: | May 29, 2026 |

---

## Ex-99.Cert

CERTIFICATIONS PURSUANT TO SECTION 302

EX-99.CERT

**<u>CERTIFICATIONS</u>**

I, Jonathan S. Horwitz, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;1. I
 have reviewed this report on Form N-CSR of **Putnam Money Market Fund**;

&nbsp;&nbsp;&nbsp;&nbsp;2. Based
 on my knowledge, this report does not contain any untrue statement of a material fact or
 omit to state a material fact necessary to make the statements made, in light of the circumstances
 under which such statements were made, not misleading with respect to the period covered
 by this report;

&nbsp;&nbsp;&nbsp;&nbsp;3. Based
 on my knowledge, the financial statements, and other financial information included in this
 report, fairly present in all material respects the financial condition, results of operations,
 changes in net assets, and cash flows (if the financial statements are required to include
 a statement of cash flows) of the registrant as of, and for, the periods presented in this
 report;

&nbsp;&nbsp;&nbsp;&nbsp;4. The
 registrant's other certifying officers and I are responsible for establishing and maintaining
 disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company
 Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under
 the Investment Company Act of 1940) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) Designed
 such disclosure controls and procedures, or caused such disclosure controls and procedures
 to be designed under our supervision, to ensure that material information relating to the
 registrant, including its consolidated subsidiaries, is made known to us by others within
 those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Designed
 such internal control over financial reporting, or caused such internal control over financial
 reporting to be designed under our supervision, to provide reasonable assurance regarding
 the reliability of financial reporting and the preparation of financial statements for external
 purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c) Evaluated
 the effectiveness of the registrant's disclosure controls and procedures and presented
 in this report our conclusions about the effectiveness of the disclosure controls and procedures,
 as of a date within 90 days prior to the filing date of this report based on such evaluation;
 and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) Disclosed
 in this report any change in the registrant's internal control over financial reporting
 that occurred during the period covered by this report that has materially affected, or is
 reasonably likely to materially affect, the registrant's internal control over financial
 reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;5. The
 registrant's other certifying officers and I have disclosed to the registrant's
 auditors and the audit committee of the registrant's board of directors (or persons
 performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) All
 significant deficiencies and material weaknesses in the design or operation of internal control
 over financial reporting which are reasonably likely to adversely affect the registrant's
 ability to record, process, summarize, and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Any
 fraud, whether or not material, that involves management or other employees who have a significant
 role in the registrant's internal control over financial reporting.

---

| |
|:---|
| Date: May 29, 2026 |
| /s/ Jonathan S. Horwitz |
| Jonathan S. Horwitz |
| Principal Executive Officer |

---

**<u>CERTIFICATIONS</u>**

I, Jeffrey White, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;1. I
 have reviewed this report on Form N-CSR of **Putnam Money Market Fund**;

&nbsp;&nbsp;&nbsp;&nbsp;2. Based
 on my knowledge, this report does not contain any untrue statement of a material fact or
 omit to state a material fact necessary to make the statements made, in light of the circumstances
 under which such statements were made, not misleading with respect to the period covered
 by this report;

&nbsp;&nbsp;&nbsp;&nbsp;3. Based
 on my knowledge, the financial information included in this report, and the financial statements
 on which the financial information is based, fairly present in all material respects the
 financial condition, results of operations, changes in net assets, and cash flows (if the
 financial statements are required to include a statement of cash flows) of the registrant
 as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;4. The
 registrant's other certifying officers and I are responsible for establishing and maintaining
 disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company
 Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under
 the Investment Company Act of 1940) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) Designed
 such disclosure controls and procedures, or caused such disclosure controls and procedures
 to be designed under our supervision, to ensure that material information relating to the
 registrant, including its consolidated subsidiaries, is made known to us by others within
 those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Designed
 such internal control over financial reporting, or caused such internal control over financial
 reporting to be designed under our supervision, to provide reasonable assurance regarding
 the reliability of financial reporting and the preparation of financial statements for external
 purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c) Evaluated
 the effectiveness of the registrant's disclosure controls and procedures and presented
 in this report our conclusions about the effectiveness of the disclosure controls and procedures,
 as of a date within 90 days prior to the filing date of this report based on such evaluation;
 and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d) Disclosed
 in this report any change in the registrant's internal control over financial reporting
 that occurred during the period covered by this report that has materially affected, or is
 reasonably likely to materially affect, the registrant's internal control over financial
 reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;5. The
 registrant's other certifying officers and I have disclosed to the registrant's
 auditors and the audit committee of the registrant's board of directors (or persons
 performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) All
 significant deficiencies and material weaknesses in the design or operation of internal control
 over financial reporting which are reasonably likely to adversely affect the registrant's
 ability to record, process, summarize, and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) Any
 fraud, whether or not material, that involves management or other employees who have a significant
 role in the registrant's internal control over financial reporting.

---

| |
|:---|
| Date: May 29, 2026 |
| /s/ Jeffrey White |
| Jeffrey White |
| Principal Financial Officer |

---

## Exhibit 99.906

CERTIFICATIONS PURSUANT TO SECTION 906

EX-99.906CERT

**CERTIFICATION**

**Jonathan S. Horwitz,** Principal Executive Officer, and **Jeffrey White,** Principal Financial Officer of **Putnam Money Market Fund** (the "Registrant"), each certify to the best of their knowledge that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. The Registrant's periodic report on Form N-CSR for the period ended **March 31, 2026** (the "Form N-CSR") fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. The information contained in the Form N-CSR fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

---

| | |
|:---|:---|
| **Principal Executive Officer** | **Principal Financial Officer** |
| Putnam Money Market Fund | Putnam Money Market Fund |
| /s/ Jonathan S. Horwitz | /s/ Jeffrey White |
| Jonathan S. Horwitz | Jeffrey White |
| Date: May 29, 2026 | Date: May 29, 2026 |

---

This certification is being furnished to the Securities and Exchange Commission solely pursuant to 18 U.S.C. § 1350 and is not being filed as part of the Form N-CSR with the Commission.