# EDGAR Filing Document

**Accession Number:** 0000804239
**File Stem:** 0001104659-23-036692
**Filing Date:** 2023-3
**Character Count:** 12383
**Document Hash:** f9b4a6a2db3b85568c44a25521de2319
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-23-036692.hdr.sgml**: 20230324

**ACCESSION NUMBER**: 0001104659-23-036692

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20230324

**DATE AS OF CHANGE**: 20230324

**EFFECTIVENESS DATE**: 20230324

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SEI INSTITUTIONAL MANAGED TRUST
- **CENTRAL INDEX KEY:** 0000804239
- **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:** 23760723

**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

## Series and Classes Contracts Data

### SIMT CORE FIXED INCOME FUND (Series ID: S000006667)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | TRLVX         | C000018187 |
| Class Y    | SCFYX         | C000147384 |

---

### SIMT REAL ESTATE FUND (Series ID: S000006669)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | SETAX         | C000018189 |
| Class Y    | SREYX         | C000147385 |

---

### SIMT SMALL CAP GROWTH FUND (Series ID: S000006670)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | SSCGX         | C000018191 |
| Class Y    | SMAYX         | C000147386 |

---

### SIMT LARGE CAP GROWTH FUND (Series ID: S000006671)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | SELCX         | C000018193 |
| Class Y    | SLRYX         | C000147387 |

---

### SIMT SMALL CAP VALUE FUND (Series ID: S000006672)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | SESVX         | C000018195 |
| Class Y    | SPVYX         | C000147388 |

---

### SIMT HIGH YIELD BOND FUND (Series ID: S000006673)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | SHYAX         | C000018196 |
| Class Y    | SIYYX         | C000147389 |

---

### SIMT LARGE CAP VALUE FUND (Series ID: S000006674)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | TRMVX         | C000018198 |
| Class Y    | SVAYX         | C000147390 |

---

### SIMT MID CAP FUND (Series ID: S000006675)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | SEMCX         | C000018199 |
| Class Y    | SFDYX         | C000147391 |

---

### SIMT TAX-MANAGED LARGE CAP FUND (Series ID: S000006676)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | TMLCX         | C000018201 |
| Class Y    | STLYX         | C000147392 |

---

### SIMT TAX-MANAGED SMALL/MID CAP FUND (Series ID: S000006677)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | STMSX         | C000018202 |
| Class Y    | STMPX         | C000147393 |

---

### SIMT US MANAGED VOLATILITY FUND (Series ID: S000006678)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | SVOAX         | C000018203 |
| Class Y    | SUSYX         | C000147394 |

---

### SIMT GLOBAL MANAGED VOLATILITY FUND (Series ID: S000010830)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| CLASS F    | SVTAX         | C000030063 |
| Class Y    | SGLYX         | C000147396 |

---

### SIMT Real Return Fund (Series ID: S000013604)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SRAAX         | C000036881 |
| Class Y    | SRYRX         | C000147397 |

---

### SIMT Tax-Managed Managed Volatility Fund (Series ID: S000017259)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | TMMAX         | C000047774 |
| Class Y    | STVYX         | C000147398 |

---

### SIMT S&P 500 Index Fund (Series ID: S000018490)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SSPIX         | C000051280 |

---

### SIMT Large Cap Fund (Series ID: S000026000)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SLGAX         | C000078064 |
| Class Y    | SLYCX         | C000147400 |

---

### SIMT Small Cap Fund (Series ID: S000026001)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SLLAX         | C000078067 |
| Class Y    | SMYFX         | C000147401 |

---

### SIMT Multi-Strategy Alternative Fund (Series ID: S000028026)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SMSAX         | C000085250 |
| Class Y    | SMUYX         | C000147402 |

---

### SIMT Dynamic Asset Allocation Fund (Series ID: S000050286)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SDYAX         | C000158774 |
| Class Y    | SDYYX         | C000158775 |

---

### SIMT Conservative Income Fund (Series ID: S000053394)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | COIAX         | C000167937 |
| Class Y    | COIYX         | C000167938 |

---

### SIMT Tax-Free Conservative Income Fund (Series ID: S000053395)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | TFCAX         | C000167939 |
| Class Y    | TFCYX         | C000167940 |

---

### SIMT Tax-Managed International Managed Volatility Fund (Series ID: S000054731)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SMINX         | C000171910 |
| Class Y    | SIMYX         | C000171911 |

---

### SIMT Large Cap Index Fund (Series ID: S000061211)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SLGFX         | C000198269 |

---

## Series and Classes Contracts Data

### SIMT CORE FIXED INCOME FUND (Series ID: S000006667)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018187 | CLASS F      | TRLVX           |
| C000147384 | Class Y      | SCFYX           |

### SIMT REAL ESTATE FUND (Series ID: S000006669)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018189 | CLASS F      | SETAX           |
| C000147385 | Class Y      | SREYX           |

### SIMT SMALL CAP GROWTH FUND (Series ID: S000006670)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018191 | CLASS F      | SSCGX           |
| C000147386 | Class Y      | SMAYX           |

### SIMT LARGE CAP GROWTH FUND (Series ID: S000006671)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018193 | CLASS F      | SELCX           |
| C000147387 | Class Y      | SLRYX           |

### SIMT SMALL CAP VALUE FUND (Series ID: S000006672)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018195 | CLASS F      | SESVX           |
| C000147388 | Class Y      | SPVYX           |

### SIMT HIGH YIELD BOND FUND (Series ID: S000006673)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018196 | CLASS F      | SHYAX           |
| C000147389 | Class Y      | SIYYX           |

### SIMT LARGE CAP VALUE FUND (Series ID: S000006674)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018198 | CLASS F      | TRMVX           |
| C000147390 | Class Y      | SVAYX           |

### SIMT MID CAP FUND (Series ID: S000006675)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018199 | CLASS F      | SEMCX           |
| C000147391 | Class Y      | SFDYX           |

### SIMT TAX-MANAGED LARGE CAP FUND (Series ID: S000006676)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018201 | CLASS F      | TMLCX           |
| C000147392 | Class Y      | STLYX           |

### SIMT TAX-MANAGED SMALL/MID CAP FUND (Series ID: S000006677)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018202 | CLASS F      | STMSX           |
| C000147393 | Class Y      | STMPX           |

### SIMT US MANAGED VOLATILITY FUND (Series ID: S000006678)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000018203 | CLASS F      | SVOAX           |
| C000147394 | Class Y      | SUSYX           |

### SIMT GLOBAL MANAGED VOLATILITY FUND (Series ID: S000010830)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000030063 | CLASS F      | SVTAX           |
| C000147396 | Class Y      | SGLYX           |

### SIMT Real Return Fund (Series ID: S000013604)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000036881 | Class F      | SRAAX           |
| C000147397 | Class Y      | SRYRX           |

### SIMT Tax-Managed Managed Volatility Fund (Series ID: S000017259)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000047774 | Class F      | TMMAX           |
| C000147398 | Class Y      | STVYX           |

### SIMT S&P 500 Index Fund (Series ID: S000018490)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000051280 | Class F      | SSPIX           |

### SIMT Large Cap Fund (Series ID: S000026000)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000078064 | Class F      | SLGAX           |
| C000147400 | Class Y      | SLYCX           |

### SIMT Small Cap Fund (Series ID: S000026001)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000078067 | Class F      | SLLAX           |
| C000147401 | Class Y      | SMYFX           |

### SIMT Multi-Strategy Alternative Fund (Series ID: S000028026)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000085250 | Class F      | SMSAX           |
| C000147402 | Class Y      | SMUYX           |

### SIMT Dynamic Asset Allocation Fund (Series ID: S000050286)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000158774 | Class F      | SDYAX           |
| C000158775 | Class Y      | SDYYX           |

### SIMT Conservative Income Fund (Series ID: S000053394)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000167937 | Class F      | COIAX           |
| C000167938 | Class Y      | COIYX           |

### SIMT Tax-Free Conservative Income Fund (Series ID: S000053395)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000167939 | Class F      | TFCAX           |
| C000167940 | Class Y      | TFCYX           |

### SIMT Tax-Managed International Managed Volatility Fund (Series ID: S000054731)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000171910 | Class F      | SMINX           |
| C000171911 | Class Y      | SIMYX           |

### SIMT Large Cap Index Fund (Series ID: S000061211)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000198269 | Class F      | SLGFX           |

SEI INSTITUTIONAL MANAGED TRUST

Dynamic Asset Allocation Fund<br>(the "Fund")

Supplement Dated March 24, 2023<br>to the Class F Shares and Class Y Shares Prospectus, each dated January 31, 2023 <br>(the "Prospectuses") and Statement of Additional Information (the "SAI"), dated January 31, 2023

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

*The Prospectuses and SAI are hereby supplemented to reflect the following changes to the Fund.*

<u>Change in Portfolio Management of the Fund's Subsidiary</u>

*Effective immediately, SSGA Funds Management Inc. no longer serves as a sub-adviser to the Dynamic Commodity Strategy Subsidiary Ltd., a subsidiary of the Fund, but continues to manage a portion of the assets of the Fund.*

*There are no other changes to the Prospectuses or SAI.*

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

SEI-F-1439 (03/23)

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