MASSMUTUAL SELECT FUNDS

497 1 d559414d497.htm MASSMUTUAL SELECT FUNDS MASSMUTUAL SELECT FUNDS

MASSMUTUAL SELECT FUNDS

Supplement dated June 25, 2013 to the

Prospectus dated April 1, 2013

This supplement provides new and additional information beyond that contained in the Prospectus and any previous supplements. It should be retained and read in conjunction with the Prospectus and any previous supplements.

Effective immediately, the following information replaces similar information for the MM Russell 2000^® Small Cap Index Fund found on page 70 under Fees and Expenses of the Fund:

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)


	Class Z			Class I			Class S			Class Y			Class L			Class A
Management Fees		.10%			.10%			.10%			.10%			.10%			.10%
Distribution and Service (Rule 12b-1) Fees		None			None			None			None			None			.25%
Other Expenses⁽¹⁾		.20%			.30%			.45%			.55%			.70%			.60%
Acquired Fund Fees and Expenses		.09%			.09%			.09%			.09%			.09%			.09%
Total Annual Fund Operating Expenses⁽²⁾		.39%			.49%			.64%			.74%			.89%			1.04%
Expense Reimbursement		(.11%	)		(.11%	)		(.11%	)		(.11%	)		(.11%	)		(.11%	)
Total Annual Fund Operating Expenses after Expense Reimbursement⁽³⁾		.28%			.38%			.53%			.63%			.78%			.93%

The Fund is not promoted, sponsored, or endorsed by, nor in any way affiliated with Russell Investment Group (“Russell”). Russell is not responsible for and has not reviewed the Fund nor any associated literature or publications and Russell makes no representation or warranty, express or implied, as to their accuracy, or completeness, or otherwise. The Russell 2000^® Index and Russell^® are trademarks of the Frank Russell Company.

⁽¹⁾	Other Expenses are based on estimated amounts for the current fiscal year of the Fund.

⁽²⁾

Because Total Annual Fund Operating Expenses include Acquired Fund fees and expenses, they may not correspond to the ratios of expenses to average daily net assets shown in the “Financial Highlights” tables in the Prospectus, which reflect the operating expenses of the Fund and do not include Acquired Fund fees and expenses.

⁽³⁾

The expenses in the above table reflect a written agreement by MassMutual to cap the fees and expenses of the Fund (other than extraordinary litigation and legal expenses, interest expense, short sale dividend and loan expense, Acquired Fund fees and expenses, or other nonrecurring or unusual expenses such as, for example, organizational expenses and shareholder meeting expenses) through March 31, 2014, to the extent that Total Annual Fund Operating Expenses after Expense Reimbursement would otherwise exceed .19%, .29%, .44%, .54%, .69%, and .84% for Classes Z, I, S, Y, L, and A, respectively. The Total Annual Fund Operating Expenses after Expense Reimbursement shown in the above table may exceed these amounts, because, as noted in the previous sentence, certain fees and expenses are excluded from the cap. The agreement can only be terminated by mutual consent of the Board of Trustees on behalf of the Fund and MassMutual.

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 initial 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
Class Z	$	29	$	114
Class I	$	39	$	146
Class S	$	54	$	194
Class Y	$	64	$	225
Class L	$	80	$	273
Class A	$	664	$	877

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

B3001M-13-05

MASSMUTUAL SELECT FUNDS

MM Russell 2000^® Small Cap Index Fund

Supplement dated June 25, 2013 to the

Summary Prospectus dated April 1, 2013

This supplement provides new and additional information beyond that contained in the Summary Prospectus. It should be retained and read in conjunction with the Summary Prospectus.

Effective immediately, the following information replaces similar information under Fees and Expenses of the Fund:

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)


	Class Z			Class I			Class S			Class Y			Class L			Class A
Management Fees		.10%			.10%			.10%			.10%			.10%			.10%
Distribution and Service (Rule 12b-1) Fees		None			None			None			None			None			.25%
Other Expenses⁽¹⁾		.20%			.30%			.45%			.55%			.70%			.60%
Acquired Fund Fees and Expenses		.09%			.09%			.09%			.09%			.09%			.09%
Total Annual Fund Operating Expenses⁽²⁾		.39%			.49%			.64%			.74%			.89%			1.04%
Expense Reimbursement		(.11%	)		(.11%	)		(.11%	)		(.11%	)		(.11%	)		(.11%	)
Total Annual Fund Operating Expenses after Expense Reimbursement⁽³⁾		.28%			.38%			.53%			.63%			.78%			.93%

⁽¹⁾	Other Expenses are based on estimated amounts for the current fiscal year of the Fund.

⁽²⁾

⁽³⁾

Example


	1 Year		3 Years
Class Z	$	29	$	114
Class I	$	39	$	146
Class S	$	54	$	194
Class Y	$	64	$	225
Class L	$	80	$	273
Class A	$	664	$	877

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

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