Class A Prospectus | SIMT Tax-Managed Managed Volatility Fund

SIMT Tax-Managed Managed Volatility Fund

Investment Goal

To maximize after-tax returns, but with a lower level of 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	Class A Prospectus SIMT Tax-Managed Managed Volatility Fund SIMT Tax-Managed Managed Volatility Fund - Class A
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		Class A Prospectus SIMT Tax-Managed Managed Volatility Fund SIMT Tax-Managed Managed Volatility Fund - Class A
Management Fees		0.65%
Distribution (12b-1) Fees		none
Other Expenses	[1]	0.58%
Total Annual Fund Operating Expenses		1.23%

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

Expense Example (USD $)	1 Year	3 Years	5 Years	10 Years
Class A Prospectus SIMT Tax-Managed Managed Volatility Fund SIMT Tax-Managed Managed Volatility Fund - Class A	125	390	676	1,489

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 58% of the average value of its portfolio.

Principal Investment Strategies

The Tax-Managed Managed Volatility Fund will typically invest in securities of U.S. companies of all capitalization ranges. These securities may include common stocks, preferred stocks, warrants and exchange-traded funds (ETFs). The Fund may also, to a lesser extent, invest in American depositary receipts (ADRs) and securities of non-U.S. companies. Although the Fund will be measured against the Russell 3000 Index, the Fund is expected to have significant sector and market capitalization deviations from the index given its focus on absolute risk as opposed to index relative risk. This could lead to significant performance deviations relative to the index over shorter-term periods.

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 approaches to manage portions of the Fund's portfolio under the general supervision of SEI Investments Management Corporation, the Fund's adviser (SIMC or the Adviser). In managing its portion of the Fund's assets, each Sub-Adviser intends to achieve returns similar to those of the broad U.S. equity markets in a tax-efficient fashion but with a lower level of volatility. 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. This will tend to lead the Fund's Sub-Avisers to construct portfolios with a low beta relative to the overall U.S. equity market. In addition, the Sub-Advisers will look to manage the impact of taxes by controlling portfolio turnover levels, selling stocks with the highest tax cost first and opportunistically harvesting losses to offset gains where possible.

Principal Risks

Currency Risk — As a result of the Fund's investments in securities denominated in, and/or receiving revenues in, foreign currencies, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Currency exchange rates may fluctuate in response to, among other things, changes in interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

Depositary Receipts Risk — Depositary receipts, such as ADRs, are certificates evidencing ownership of shares of a foreign issuer that are issued by depositary banks and generally trade on an established market. Depositary receipts 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. When the Fund invests in an ETF, in addition to directly bearing the expenses associated with its own operations, it will bear a pro rata portion of the ETF's expenses.

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 securities selected as part of a managed volatility strategy 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.

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.

Taxation Risk — The Fund is managed to minimize tax consequences to investors, but will likely earn taxable income and gains from time to time.

Investing in the Fund involves risk, and there is no guarantee that the Fund will achieve its investment goal. You could lose money on your investment in the Fund, just as you could with other investments.

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 the past six calendar years and by showing how the Fund's average annual returns for 1 year 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.

Best Quarter: 12.92% (03/31/13)

Worst Quarter: -17.20% (12/31/08)

Average Annual Total Returns (for the periods ended December 31, 2014)

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. In the event of negative performance, the Fund's returns after taxes on distributions and sale of Fund Shares are calculated assuming that an investor has sufficient capital gains of the same character from other investments to offset any capital losses from the sale of Fund Shares. As a result, the Fund's returns after taxes on distributions and sale of Fund Shares may exceed the Fund's returns before taxes and/or returns after taxes on distributions.

Average Annual Returns Class A Prospectus SIMT Tax-Managed Managed Volatility Fund	Average Annual Returns, 1 Year	Average Annual Returns, 5 Years	Average Annual Returns, Since Inception		Average Annual Returns, Inception Date
SIMT Tax-Managed Managed Volatility Fund - Class A	16.19%	15.86%	9.19%		Dec. 20, 2007
After Taxes on Distributions SIMT Tax-Managed Managed Volatility Fund - Class A	14.06%	14.73%	8.36%
After Taxes on Distributions and Sales of Fund Shares SIMT Tax-Managed Managed Volatility Fund - Class A	10.72%	12.77%	7.34%
Russell 3000 Index Return (reflects no deduction for fees, expenses or taxes)	12.56%	15.63%	7.58%	[1]	Dec. 31, 2007

[1] Other Expenses have been restated to reflect estimated fees and expenses for the upcoming fiscal year.

[1] Index returns are shown from December 31, 2007.