SIMT US MANAGED VOLATILITY FUND | Class I

SIMT US MANAGED VOLATILITY FUND

Investment Goal

Capital appreciation with less volatility than the broad U.S. equity markets.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold Fund shares.

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees	SIMT US MANAGED VOLATILITY FUND Class I
Redemption Fee (applies to a redemption, or series of redemptions, from a single identifiable source that, in the aggregate, exceeds $25 million within any thirty (30) day period)	0.50%

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		SIMT US MANAGED VOLATILITY FUND Class I
Management Fees		0.65%
Distribution (12b-1) Fees		none
Other Expenses		0.89%
Total Annual Fund Operating Expenses	[1]	1.54%

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. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same.

Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	1 Year	3 Years	5 Years	10 Years
SIMT US MANAGED VOLATILITY FUND Class I	157	486	839	1,834

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 48% of the average value of its portfolio.

Principal Investment Strategies

The U.S. Managed Volatility Fund will typically invest in securities of U.S. companies of all capitalization ranges. These securities may include common stocks, preferred stocks, exchange-traded funds (ETFs) and warrants. The Fund may also, to a lesser extent, invest in American depositary receipts (ADRs) and securities of non-U.S. companies.

The Fund uses a multi-manager approach, relying on a number of sub-advisers (each, a Sub-Adviser and collectively, the Sub-Advisers) with differing investment philosophies to manage portions of the Fund's portfolio under the general supervision of SEI Investments Management Corporation (SIMC), the Fund's adviser. The Fund seeks to achieve an absolute return of the broad U.S. equity markets, but with a lower absolute volatility. Over the long term, the Fund seeks to achieve a return similar to that of the Russell 3000 Index, but with a lower level of volatility. However, given that the Fund's investment strategy focuses on absolute return and risk, the Fund's sector and market capitalization exposures will typically vary from the index and may cause significant performance deviations relative to the index over shorter-term periods. The Fund seeks to achieve lower volatility by constructing a portfolio of securities that effectively weighs securities based on their total expected risk and return without regard to market capitalization and industry.

Principal Risks

American Depositary Receipts (ADRs) Risk — ADRs are certificates evidencing ownership of shares of a foreign issuer that are issued by depositary banks and generally trade on an established market. ADRs are subject to many of the risks associated with investing directly in foreign securities, including, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory and tax environments.

Equity Market Risk — The risk that stock prices will fall over short or extended periods of time.

Exchange-Traded Funds (ETFs) Risk — The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio securities.

Foreign Investment Risk — The risk that non-U.S. securities may be subject to additional risks due to, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory and tax environments.

Investment Style Risk — The risk that equity securities of U.S. companies of all capitalization ranges may underperform other segments of the equity markets or the equity markets as a whole.

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like. The Fund may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

Portfolio Turnover Risk — Due to its investment strategy, the Fund may buy and sell securities frequently. This may result in higher transaction costs and additional capital gains tax liabilities.

Small and Medium Capitalization Companies Risk — The risk that small and medium capitalization companies in which the Fund invests may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, small and medium capitalization companies may have limited product lines, markets and financial resources and may depend upon a relatively small management group. Therefore, small capitalization and medium capitalization stocks may be more volatile than those of larger companies. Small capitalization and medium capitalization stocks may be traded over-the-counter or listed on an exchange.

Loss of money is a risk of investing in the Fund.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year for each calendar year since inception and by showing how the Fund's average annual returns for 1 and 5 years, and since the Fund's inception, compare with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. For current performance information, please call 1-800-DIAL-SEI.

However, the Fund's Class I Shares commenced operations on June 29, 2007. Therefore, performance and average annual total returns for the periods prior to June 29, 2007 are calculated using the performance and average annual total returns of the Fund's Class A Shares, adjusted for the higher expenses of the Class I Shares. The Fund's Class A Shares commenced operations on October 28, 1994.

Best Quarter: 11.49% (09/30/09)

 Worst Quarter: -20.35% (12/31/08)

Average Annual Total Returns (for the periods ended December 31, 2012)

As noted above, the Fund's Class I Shares commenced operations on June 29, 2007. Therefore, the Fund's average annual total returns for the periods prior to that time are based on the average annual total returns of the Class A Shares, adjusted for the higher expenses of the Class I Shares. The Fund's Class A Shares commenced operations on October 28, 1994.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Average Annual Returns SIMT US MANAGED VOLATILITY FUND	Label	Average Annual Returns, 1 Year	Average Annual Returns, 5 Years	Average Annual Returns, Since Inception		Average Annual Returns, Inception Date
Class I	Class I Return Before Taxes	12.07%	2.87%	5.99%		Oct. 28, 2004
After Taxes on Distributions Class I	Class I Return After Taxes on Distributions	11.68%	2.66%	5.49%
After Taxes on Distributions and Sale of Fund Shares Class I	Class I Return After Taxes on Distributions and Sale of Fund Shares	8.37%	2.42%	5.02%
Russell 3000 Index Return (reflects no deduction for fees, expenses or taxes) Class I	Russell 3000 Index Return (reflects no deduction for fees, expenses or taxes)	16.42%	2.04%	5.50%	[1]	Oct. 31, 2004

[1] The Fund incurred AFFE during the most recent fiscal year, and therefore the operating expenses in this fee table will not correlate to the expense ratio in the Fund's financial statements (or the "Financial Highlights" section in the prospectus). The financial statements include only the direct operating expenses incurred by the Fund, not the indirect costs of investing in other investment companies.

[1] Index returns are shown from October 31, 2004.