MassMutual Select Funds

07/01/2026 | Press release | Distributed by Public on 07/01/2026 14:32

Prospectus by Investment Company (Form 497)

MASSMUTUAL FUNDS
MassMutual Small Cap Growth Equity Fund
(the "Fund")
Supplement dated July 1, 2026 to the
Prospectus dated February 1, 2026 and the
Summary Prospectus dated February 1, 2026
This supplement provides new and additional information beyond that contained in the Prospectus and Summary Prospectus, and any previous supplements. It should be retained and read in conjunction with the Prospectus and Summary Prospectus, and any previous supplements.
Effective July 1, 2026, the following information replaces similar information for the Fund found under the headings Annual Fund Operating Expenses and Example in the section titled Fees and Expenses of the Fund (on page 26 of the Prospectus):
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Class I
 
 
Class R5
 
 
Service
Class
 
 
Administrative
Class
 
 
Class R4
 
 
Class A
 
 
Class R3
 
 
Class Y
Management Fees
 
 
0.80%
 
 
0.80%
 
 
0.80%
 
 
0.80%
 
 
0.80%
 
 
0.80%
 
 
0.80%
 
 
0.80%
Distribution and Service (Rule 12b-1) Fees
 
 
None
 
 
None
 
 
None
 
 
None
 
 
0.25%
 
 
0.25%
 
 
0.50%
 
 
None
Other Expenses
 
 
0.08%
 
 
0.18%
 
 
0.28%
 
 
0.38%
 
 
0.28%
 
 
0.33%
 
 
0.28%
 
 
0.18%
Total Annual Fund Operating Expenses
 
 
0.88%
 
 
0.98%
 
 
1.08%
 
 
1.18%
 
 
1.33%
 
 
1.38%
 
 
1.58%
 
 
0.98%
Fee Waiver
 
 
(0.03%)
 
 
(0.03%)
 
 
(0.03%)
 
 
(0.03%)
 
 
(0.03%)
 
 
(0.03%)
 
 
(0.03%)
 
 
(0.03%)
Total Annual Fund Operating Expenses after Fee Waiver(1)
 
 
0.85%
 
 
0.95%
 
 
1.05%
 
 
1.15%
 
 
1.30%
 
 
1.35%
 
 
1.55%
 
 
0.95%
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(1)
The expenses in the above table reflect a written agreement by MML Advisers to waive 0.03% of its management fees through January 31, 2028. The agreement can only be terminated by mutual consent of the Board of Trustees on behalf of the Fund and MML Advisers.
Example
This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. It assumes that you invest $10,000 in each share class of the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. For Class A shares, the example includes the front-end sales charge. The example also assumes that your investment earns a 5% return each year and that the Fund's operating expenses are exactly as described in the preceding table. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1 Year
 
 
3 Years
 
 
5 Years
 
 
10 Years
Class I
 
 
$87
 
 
$276
 
 
$483
 
 
$1,080
Class R5
 
 
$97
 
 
$307
 
 
$537
 
 
$1,197
Service Class
 
 
$107
 
 
$339
 
 
$591
 
 
$1,313
Administrative Class
 
 
$117
 
 
$370
 
 
$644
 
 
$1,427
Class R4
 
 
$132
 
 
$417
 
 
$724
 
 
$1,597
Class A
 
 
$680
 
 
$958
 
 
$1,259
 
 
$2,112
Class R3
 
 
$158
 
 
$494
 
 
$856
 
 
$1,874
Class Y
 
 
$97
 
 
$307
 
 
$537
 
 
$1,197
 
 
 
 
 
 
 
 
 
 
 
 
 
PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE
SELPRO-26-07
SCGE-26-02
MASSMUTUAL FUNDS
MassMutual Blue Chip Growth Fund
Supplement dated July 1, 2026 to the
Statement of Additional Information dated February 1, 2026
This supplement provides new and additional information beyond that contained in the Statement of Additional Information ("SAI") and any previous supplements. It should be retained and read in conjunction with the SAI and any previous supplements.
The following information replaces similar information for the MassMutual Blue Chip Growth Fund found in the tables on page B-86 and B-87 in the section titled Portfolio Transactions and Brokerage:
 
 
 
 
 
 
 
 
 
 
 
 
Fiscal Year Ended
September 30, 2025
 
 
Fiscal Year Ended
September 30, 2024
 
 
Fiscal Year Ended
September 30, 2023
Blue Chip Growth Fund
 
 
$ 211,052
 
 
$ 95,905
 
 
$ 272,493
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fiscal Year Ended
September 30, 2025
 
 
Fiscal Year Ended
September 30, 2024
 
 
Fiscal Year Ended
September 30, 2023
Affiliated Broker/Dealer
 
 
Aggregate
Commissions
Paid
 
 
Percentage
Paid to
Affiliates
 
 
Percentage of
Dollar Amount
of Transactions
Involving
Payment of
Commissions to
Affiliates
 
 
Aggregate
Commissions
Paid
 
 
Aggregate
Commissions
Paid
Jefferies LLC
 
 
 
 
 
 
 
 
 
 
Blue Chip Growth Fund1
 
 
$ 398
 
 
0.19%
 
 
0.48%
 
 
$ 704
 
 
$ 2,349
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
Includes affiliated trading platforms of Jefferies LLC.
 
 
 
 
 
 
 
 
 
Dollar Value of Those
Transactions
 
 
Amount of
Commissions
Blue Chip Growth Fund
 
 
$1,012,801,995
 
 
$80,686
 
 
 
 
 
 
 
PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE
SELSAI-26-05
MassMutual Select Funds published this content on July 01, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on July 01, 2026 at 20:32 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]