0001104659-24-078382.txt : 20240709 0001104659-24-078382.hdr.sgml : 20240709 20240708202942 ACCESSION NUMBER: 0001104659-24-078382 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 22 FILED AS OF DATE: 20240709 DATE AS OF CHANGE: 20240708 EFFECTIVENESS DATE: 20240709 FILER: COMPANY DATA: COMPANY CONFORMED NAME: SEI INSTITUTIONAL MANAGED TRUST CENTRAL INDEX KEY: 0000804239 ORGANIZATION NAME: IRS NUMBER: 000000000 STATE OF INCORPORATION: MA FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 033-09504 FILM NUMBER: 241106140 BUSINESS ADDRESS: STREET 1: 2 OLIVER ST CITY: BOSTON STATE: MA ZIP: 02109 BUSINESS PHONE: 8003455734 MAIL ADDRESS: STREET 1: SEI INVESTMENTS STREET 2: 1 FREEDOM VALLEY DRIVE CITY: OAKS STATE: PA ZIP: 19456 FORMER COMPANY: FORMER CONFORMED NAME: TRUSTFUNDS INSTITUTIONAL MANAGED TRUST DATE OF NAME CHANGE: 19890509 0000804239 S000017259 SIMT Tax-Managed Managed Volatility Fund C000047774 Class F TMMAX C000147398 Class Y STVYX 497 1 tm2419059d1_497.htm 497 24-19059-2.ba

SEI INSTITUTIONAL MANAGED TRUST

Tax-Managed Managed Volatility Fund
(the "Fund")

Supplement Dated July 8, 2024
to the Class F Shares Prospectus, dated January 31, 2024, as amended on May 1, 2024 and
May 20, 2024 (the "Prospectus")

This Supplement provides new and additional information beyond that contained in the Prospectus and should be read in conjunction with such Prospectus.

The Prospectus is hereby amended and supplemented to reflect the following changes to the Fund.

Change in Investment Strategy of the Fund

Under the heading titled "Principal Investment Strategies," the following text hereby replaces the third and fourth paragraphs:

The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each such 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 such 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. For example, SIMC may 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 efficiencies, loss harvesting, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.

In addition, under the "More Information About Risks" section, under the sub-section "Risk Information Common to the Funds," the third paragraph is hereby deleted and replaced with the following:

The Large Cap, Large Cap Value, Large Cap Growth, Tax-Managed Large Cap, Small Cap, Small Cap Value, Small Cap Growth, Tax-Managed Small/Mid Cap, Tax-Managed Managed Volatility and Tax-Managed International Managed Volatility Funds (for purposes of this paragraph, each, a Fund and collectively, the Funds) implement the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Pursuant to direction from SIMC, the overlay manager has limited authority to vary from the models. The Funds are subject to the risk that the performance of the Funds may deviate from the performance of a Sub-Adviser's model portfolio or the performance of other proprietary or client accounts over which the Sub-Adviser retains trading authority (Other Accounts). The overlay manager's variation from the Sub-Adviser's model portfolio may contribute to performance deviations, including under performance. In addition, a Sub-Adviser may implement its model portfolio for its Other Accounts prior to submitting its model to the Fund. In these circumstances, trades placed by the overlay manager pursuant to a model portfolio may be subject to price movements that result in the Fund receiving prices that are different from the prices obtained by the Sub-Adviser for its Other Accounts, including less favorable prices. The risk of such price deviations may increase for large orders or where securities are thinly traded.

In addition, under the section titled "Sub-Advisers," under the heading titled "Sub-Advisers and Portfolio Managers," under the sub-heading titled "Tax-Managed Managed Volatility Fund," the second paragraph is hereby deleted.

In addition, under the same sub-heading, the following is hereby added as the first paragraph:

As further described in the Principal Investment Strategies of the Tax-Managed Managed Volatility Fund's Summary section, each Sub-Adviser, except for Parametric Portfolio Associates LLC (Parametric), will manage its portion of the Fund's portfolio by making recommendations as to the purchase, sale and retention of assets, with those recommendations executed by Parametric as overlay manager.

There are no other changes to the Prospectus.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

SEI-F-1532 (07/24)

SEI INSTITUTIONAL MANAGED TRUST

Tax-Managed Managed Volatility Fund
(the "Fund")

Supplement Dated July 8, 2024
to the Class Y Shares Prospectus, dated January 31, 2024, as amended on April 5, 2024,
May 1, 2024 and May 20, 2024 (the "Prospectus")

This Supplement provides new and additional information beyond that contained in the Prospectus and should be read in conjunction with such Prospectus.

The Prospectus is hereby amended and supplemented to reflect the following changes to the Fund.

Change in Investment Strategy of the Fund

Under the heading titled "Principal Investment Strategies," the following text hereby replaces the third and fourth paragraphs:

The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each such 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 such 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. For example, SIMC may 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 efficiencies, loss harvesting, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.

In addition, under the "More Information About Risks" section, under the sub-section "Risk Information Common to the Funds," the third paragraph is hereby deleted and replaced with the following:

The Large Cap, Large Cap Value, Large Cap Growth, Tax-Managed Large Cap, Small Cap, Small Cap Value, Small Cap Growth, Tax-Managed Small/Mid Cap, Tax-Managed Managed Volatility and Tax-Managed International Managed Volatility Funds (for purposes of this paragraph, each, a Fund and collectively, the Funds) implement the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Pursuant to direction from SIMC, the overlay manager has limited authority to vary from the models. The Funds are subject to the risk that the performance of the Funds may deviate from the performance of a Sub-Adviser's model portfolio or the performance of other proprietary or client accounts over which the Sub-Adviser retains trading authority (Other Accounts). The overlay manager's variation from the Sub-Adviser's model portfolio may contribute to performance deviations, including under performance. In addition, a Sub-Adviser may implement its model portfolio for its Other Accounts prior to submitting its model to the Fund. In these circumstances, trades placed by the overlay manager pursuant to a model portfolio may be subject to price movements that result in the Fund receiving prices that are different from the prices obtained by the Sub-Adviser for its Other Accounts, including less favorable prices. The risk of such price deviations may increase for large orders or where securities are thinly traded.

In addition, under the section titled "Sub-Advisers," under the heading titled "Sub-Advisers and Portfolio Managers," under the sub-heading titled "Tax-Managed Managed Volatility Fund," the second paragraph is hereby deleted.

In addition, under the same sub-heading, the following is hereby added as the first paragraph:

As further described in the Principal Investment Strategies of the Tax-Managed Managed Volatility Fund's Summary section, each Sub-Adviser, except for Parametric Portfolio Associates LLC (Parametric), will manage its portion of the Fund's portfolio by making recommendations as to the purchase, sale and retention of assets, with those recommendations executed by Parametric as overlay manager.

There are no other changes to the Prospectus.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

SEI-F-1533 (07/24)

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SEI INSTITUTIONAL MANAGED TRUST

Tax-Managed Managed Volatility Fund
(the "Fund")

Supplement Dated July 8, 2024
to the Statement of Additional Information, dated January 31, 2024, as amended April 16, 2024,
May 1, 2024 and May 20, 2024 (the "SAI")

This Supplement provides new and additional information beyond that contained in the SAI and should be read in conjunction with such SAI.

Change in Investment Strategy of the Fund

Under the section titled "Investment Objectives and Policies," under the heading "Tax-Managed Managed Volatility Fund," the fourth and fifth paragraphs are hereby deleted and replaced with the following:

The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each such 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 such 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. For example, SIMC may 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 efficiencies, loss harvesting, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.

There are no other changes to the SAI.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

SEI-F-1534 (07/24)

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Form N-1A Cover
Jul. 08, 2024
Prospectus [Line Items]  
Document Type 497
Amendment Flag false
Registrant Name SEI INSTITUTIONAL MANAGED TRUST
Entity Central Index Key 0000804239
Entity Investment Company Type N-1A
Document Period End Date Jul. 08, 2024
Prospectus Date Jul. 31, 2024
Class F Prospectus  
Prospectus [Line Items]  
Supplement to Prospectus [Text Block]

SEI INSTITUTIONAL MANAGED TRUST

Tax-Managed Managed Volatility Fund
(the "Fund")

Supplement Dated July 8, 2024
to the Class F Shares Prospectus, dated January 31, 2024, as amended on May 1, 2024 and
May 20, 2024 (the "Prospectus")

This Supplement provides new and additional information beyond that contained in the Prospectus and should be read in conjunction with such Prospectus.

The Prospectus is hereby amended and supplemented to reflect the following changes to the Fund.
Class Y Prospectus  
Prospectus [Line Items]  
Supplement to Prospectus [Text Block]

SEI INSTITUTIONAL MANAGED TRUST

Tax-Managed Managed Volatility Fund
(the "Fund")

Supplement Dated July 8, 2024
to the Class Y Shares Prospectus, dated January 31, 2024, as amended on April 5, 2024,
May 1, 2024 and May 20, 2024 (the "Prospectus")

This Supplement provides new and additional information beyond that contained in the Prospectus and should be read in conjunction with such Prospectus.

The Prospectus is hereby amended and supplemented to reflect the following changes to the Fund.
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Investment Objectives and Goals - SIMT Tax-Managed Managed Volatility Fund
Jul. 08, 2024
Class F Prospectus  
Prospectus [Line Items]  
Risk/Return [Heading] Tax-Managed Managed Volatility Fund
Class Y Prospectus  
Prospectus [Line Items]  
Risk/Return [Heading] Tax-Managed Managed Volatility Fund
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Investment Strategy - SIMT Tax-Managed Managed Volatility Fund
Jul. 08, 2024
Class F Prospectus  
Prospectus [Line Items]  
Strategy Narrative [Text Block]

Change in Investment Strategy of the Fund

Under the heading titled "Principal Investment Strategies," the following text hereby replaces the third and fourth paragraphs:

The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each such 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 such 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. For example, SIMC may 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 efficiencies, loss harvesting, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE
Class Y Prospectus  
Prospectus [Line Items]  
Strategy Narrative [Text Block]

Change in Investment Strategy of the Fund

Under the heading titled "Principal Investment Strategies," the following text hereby replaces the third and fourth paragraphs:

The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each such 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 such 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. For example, SIMC may 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 efficiencies, loss harvesting, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE
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Jul. 08, 2024
SIMT Tax-Managed Managed Volatility Fund | Class F Prospectus

Change in Investment Strategy of the Fund

Under the heading titled "Principal Investment Strategies," the following text hereby replaces the third and fourth paragraphs:

The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each such 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 such 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. For example, SIMC may 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 efficiencies, loss harvesting, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

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SIMT Tax-Managed Managed Volatility Fund | Class F Prospectus  
Prospectus [Line Items] oef_ProspectusLineItems  
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Strategy Narrative [Text Block] oef_StrategyNarrativeTextBlock

Change in Investment Strategy of the Fund

Under the heading titled "Principal Investment Strategies," the following text hereby replaces the third and fourth paragraphs:

The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each such 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 such 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. For example, SIMC may 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 efficiencies, loss harvesting, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE
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Jul. 08, 2024
SIMT Tax-Managed Managed Volatility Fund | Class Y Prospectus

Change in Investment Strategy of the Fund

Under the heading titled "Principal Investment Strategies," the following text hereby replaces the third and fourth paragraphs:

The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each such 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 such 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. For example, SIMC may 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 efficiencies, loss harvesting, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

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SIMT Tax-Managed Managed Volatility Fund | Class Y Prospectus  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk/Return [Heading] oef_RiskReturnHeading Tax-Managed Managed Volatility Fund
Strategy Narrative [Text Block] oef_StrategyNarrativeTextBlock

Change in Investment Strategy of the Fund

Under the heading titled "Principal Investment Strategies," the following text hereby replaces the third and fourth paragraphs:

The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each such 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 such 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. For example, SIMC may 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 efficiencies, loss harvesting, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE
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A0#% @ M*/H6$=WN+[-#@ 6EP !, M ( !\# '1M,C0Q.3 U.60Q7S0Y-RYH=&U02P4& 4 !0!I ) 0 [C\ end XML 26 tm2419059d1_497_htm.xml IDEA: XBRL DOCUMENT 0000804239 2024-07-08 2024-07-08 0000804239 ck0000804239:doc_Class_F_ProspectusMember ck0000804239:S000017259Member 2024-07-08 2024-07-08 0000804239 ck0000804239:doc_Class_F_ProspectusMember 2024-07-08 2024-07-08 0000804239 ck0000804239:doc_Class_Y_ProspectusMember ck0000804239:S000017259Member 2024-07-08 2024-07-08 0000804239 ck0000804239:doc_Class_Y_ProspectusMember 2024-07-08 2024-07-08 <p style="margin:0pt 0pt 12pt 0pt; text-align: center;"><span style="font-size:13pt; font-family: Arial, Helvetica;">SEI INSTITUTIONAL MANAGED TRUST</span></p> <p style="margin:0pt 0pt 13pt 0pt; text-align: center;"><span style="font-size:11pt; font-family: Arial, Helvetica;">Tax-Managed Managed Volatility Fund<br/>(the "Fund")</span></p> <p style="margin:0pt 0pt 20pt 0pt; text-align: center;"><span style="font-size:11pt; font-family: Arial, Helvetica;">Supplement Dated July 8, 2024<br/>to the Class F Shares Prospectus, dated January 31, 2024, as amended on May 1, 2024 and <br/>May 20, 2024 (the "Prospectus")</span></p> <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;">This Supplement provides new and additional information beyond that contained in the Prospectus and should be read in conjunction with such Prospectus.</span></p> <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;"><i>The Prospectus is hereby amended and supplemented to reflect the following changes to the Fund.</i></span></p> SEI INSTITUTIONAL MANAGED TRUST Tax-Managed Managed Volatility Fund <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;"><span style="text-decoration:underline">Change in Investment Strategy of the Fund</span></span></p> <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;"><i>Under the heading titled "Principal Investment Strategies," the following text hereby replaces the third and fourth paragraphs:</i></span></p> <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;">The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each such 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 such Sub-Adviser's model in the total portfolio determined by SIMC.</span></p> <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;">Pursuant to direction from SIMC, the overlay manager has limited authority to vary from the models. For example, SIMC may 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 efficiencies, loss harvesting, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.</span></p><p style="margin:0pt 0pt 6pt 0pt; text-align: center;"><span style="font-size:8pt; font-family: Arial, Helvetica;">PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE</span></p> <p style="margin:0pt 0pt 12pt 0pt; text-align: center;"><span style="font-size:13pt; font-family: Arial, Helvetica;">SEI INSTITUTIONAL MANAGED TRUST</span></p> <p style="margin:0pt 0pt 13pt 0pt; text-align: center;"><span style="font-size:11pt; font-family: Arial, Helvetica;">Tax-Managed Managed Volatility Fund<br/>(the "Fund")</span></p> <p style="margin:0pt 0pt 20pt 0pt; text-align: center;"><span style="font-size:11pt; font-family: Arial, Helvetica;">Supplement Dated July 8, 2024<br/>to the Class Y Shares Prospectus, dated January 31, 2024, as amended on April 5, 2024, <br/>May 1, 2024 and May 20, 2024 (the "Prospectus")</span></p> <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;">This Supplement provides new and additional information beyond that contained in the Prospectus and should be read in conjunction with such Prospectus.</span></p> <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;"><i>The Prospectus is hereby amended and supplemented to reflect the following changes to the Fund.</i></span></p> Tax-Managed Managed Volatility Fund <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;"><span style="text-decoration:underline">Change in Investment Strategy of the Fund</span></span></p> <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;"><i>Under the heading titled "Principal Investment Strategies," the following text hereby replaces the third and fourth paragraphs:</i></span></p> <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;">The Fund implements the investment recommendations of SIMC and the Sub-Advisers through the use of an overlay manager appointed by SIMC. Each such 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 such Sub-Adviser's model in the total portfolio determined by SIMC.</span></p> <p style="margin:0pt 0pt 5.5pt 0pt; text-align: left;"><span style="font-size:8pt; font-family: Arial, Helvetica;">Pursuant to direction from SIMC, the overlay manager has limited authority to vary from the models. For example, SIMC may 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 efficiencies, loss harvesting, portfolio rebalancing or other portfolio construction objectives as directed by SIMC.</span></p><p style="margin:0pt 0pt 6pt 0pt; text-align: center;"><span style="font-size:8pt; font-family: Arial, Helvetica;">PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE</span></p> false 2024-07-08 497 0000804239 N-1A 2024-07-31