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Jan. 28, 2026
SIMT TAX-MANAGED LARGE CAP FUND | TAX-MANAGED LARGE CAP FUND - Class Y Prospectus
Investment Goal

High long-term after-tax returns.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy, hold, and sell Fund shares. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in this table and examples below.

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

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

 

Class Y Shares

 

Management Fees

   

0.40

%

 

Distribution (12b-1) Fees

   

None

   

Other Expenses

   

0.26

%

 

Total Annual Fund Operating Expenses

   

0.66

%

 
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 or hold 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:
   

1 Year

 

3 Years

 

5 Years

 

10 Years

 

Tax-Managed Large Cap Fund — Class Y Shares

 

$

67

   

$

211

   

$

368

   

$

822

   
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 14% of the average value of its portfolio.

Principal Investment Strategies

Under normal circumstances, the Tax-Managed Large Cap Fund will invest at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in equity securities of large companies. For purposes of this Fund, a large company is a company with a market capitalization in the range of companies in the Russell 1000 Index (between $1.0 billion and $4.5 trillion as of December 31, 2025) at the time of purchase. The market capitalization range and the composition of the Russell 1000 Index are subject to change. The

Fund will invest primarily in common stocks, preferred stocks, warrants, American Depositary Receipts (ADRs), real estate investment trusts (REITs) and exchange-traded funds (ETFs). The Fund may also, to a lesser extent, invest in common and preferred stocks of small and medium capitalization companies. The Fund may invest up to 20% of its assets in foreign securities.

SEI Investments Management Corporation, the Fund's adviser (SIMC or the Adviser), directly manages a portion of the Fund's assets. With the remaining assets, the Fund uses a multi-manager approach, relying on one or more sub-advisers (each, a Sub-Adviser and collectively, the Sub-Advisers) with differing investment philosophies and strategies to manage Fund assets under the general supervision of SIMC. In managing its portion of the Fund's assets, SIMC or each Sub-Adviser may apply a variety of quantitative and/or fundamental investment styles. A quantitative investment style generally involves a systematic or rules-based approach to selecting investments based on specific measurable factors. A fundamental investment style generally involves selecting investments through research and analysis of financial statements, relevant industry and economic data, or other characteristics.

The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each Sub-Adviser and SIMC provides a model portfolio to the overlay manager on an ongoing basis that represents that Sub-Adviser's or SIMC's recommendation as to the securities to be purchased, sold or retained by the Fund. The overlay manager then constructs a portfolio for the Fund that represents the aggregation of the model portfolios of the Sub-Advisers and SIMC, with the weighting of each Sub-Adviser's model in the total portfolio determined by SIMC.

Pursuant to direction from SIMC, the overlay manager has limited authority to vary from the models, primarily for the purpose of efficient tax management of the Fund's securities transactions. The overlay manager seeks to manage the impact of taxes by, among other things, selling stocks with the highest tax cost first, opportunistically harvesting losses and deferring recognition of taxable gains, where possible. SIMC may also direct the overlay manager to adjust the portfolio to implement SIMC's forward looking views regarding various portfolio characteristics or factors, or for risk management purposes. The overlay manager may also vary the portfolio implementation to seek trading cost efficiencies, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.

Performance Information

The bar chart and the performance table below provide some indication of the risks of investing in the Class Y Shares of the Fund by showing changes in the Fund's performance from year to year for the past ten calendar years and by showing how the Fund's average annual returns for 1, 5 and 10 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: 18.53% (06/30/2020)
Worst Quarter: -21.68% (03/31/2020)




 



 

Best Quarter: 18.53% (06/30/2020)
Worst Quarter: -21.68% (03/31/2020)

Average Annual Total Returns (for the periods ended December 31, 2025)

This table compares the Fund's average annual total returns to those of a broad-based securities market index and an additional index with characteristics relevant to the Fund's investment strategy.

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.

Tax-Managed Large Cap Fund*

 

1 Year

 

5 Years

 

10 Years

  Since
Inception
(3/5/1998)
 

Return Before Taxes

   

17.23

%

   

12.14

%

   

12.23

%

   

7.49

%

 

Return After Taxes on Distributions

   

16.72

%

   

10.70

%

   

11.07

%

   

6.87

%

 

Return After Taxes on Distributions and Sale of Fund Shares

   

10.53

%

   

9.42

%

   

9.89

%

   

6.28

%

 
S&P 500 Index Return (reflects no deduction for fees,
expenses or taxes)
   

17.88

%

   

14.42

%

   

14.82

%

   

8.98

%

 
Russell 1000 Index Return (reflects no deduction for fees,
expenses or taxes)
   

17.37

%

   

13.59

%

   

14.59

%

   

9.06

%

 

* The Fund's Class Y Shares commenced operations on December 31, 2014. For periods prior to December 31, 2014, the performance of the Fund's Class F Shares has been used. Returns for Class Y Shares would have been substantially similar to those of Class F Shares and would have differed only to the extent that Class Y Shares have lower total annual fund operating expenses than Class F Shares.