# EDGAR Filing Document

**Accession Number:** 0000804239
**File Stem:** 0002048251-25-003567
**Filing Date:** 2025-12
**Character Count:** 26901
**Document Hash:** ed0ef9fd81c380393406258729e843d5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002048251-25-003567.hdr.sgml**: 20251229

**ACCESSION NUMBER**: 0002048251-25-003567

**CONFORMED SUBMISSION TYPE**: 24F-2NT

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251229

**DATE AS OF CHANGE**: 20251229

**EFFECTIVENESS DATE**: 20251229

**FILER**: 

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

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** PA
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 24F-2NT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-09504
- **FILM NUMBER:** 251604359

**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 I                               | SCXIX         | C000018186 |
| CLASS F                               | TRLVX         | C000018187 |
| SIMT Core Fixed Income Fund - Class G | nan           | C000073414 |
| Class Y                               | SCFYX         | C000147384 |

---

### SIMT LARGE CAP DIVERSIFIED ALPHA FUND (Series ID: S000006668)

---

|  |  |
|:---|:---|
| Class Name                                      | Class ID   |
| SIMT LARGE CAP DIVERSIFIED ALPHA FUND - CLASS A | C000018188 |
| SIMT LARGE CAP DIVERSIFIED ALPHA FUND - CLASS I | C000030066 |
| SIMT Large Cap Diversified Alpha Fund - Class G | C000073415 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                      | Ticker Symbol | Class ID   |
| CLASS F                         | SETAX         | C000018189 |
| Class I                         | SEIRX         | C000036883 |
| SIMT Real Estate Fund - Class G | nan           | C000073416 |
| Class Y                         | SREYX         | C000147385 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                           | Ticker Symbol | Class ID   |
| CLASS I                              | SPWIX         | C000018190 |
| CLASS F                              | SSCGX         | C000018191 |
| SIMT Small Cap Growth Fund - Class G | nan           | C000073417 |
| Class Y                              | SMAYX         | C000147386 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                           | Ticker Symbol | Class ID   |
| CLASS I                              | SPGIX         | C000018192 |
| CLASS F                              | SELCX         | C000018193 |
| SIMT Large Cap Growth Fund - Class G | nan           | C000073418 |
| Class Y                              | SLRYX         | C000147387 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                          | Ticker Symbol | Class ID   |
| CLASS I                             | SMVIX         | C000018194 |
| CLASS F                             | SESVX         | C000018195 |
| SIMT Small Cap Value Fund - Class G | nan           | C000073419 |
| Class Y                             | SPVYX         | C000147388 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                          | Ticker Symbol | Class ID   |
| CLASS F                             | SHYAX         | C000018196 |
| Class I                             | SEIYX         | C000036884 |
| SIMT High Yield Bond Fund - Class G | nan           | C000073420 |
| Class Y                             | SIYYX         | C000147389 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                          | Ticker Symbol | Class ID   |
| CLASS I                             | SEUIX         | C000018197 |
| CLASS F                             | TRMVX         | C000018198 |
| SIMT Large Cap Value Fund - Class G | nan           | C000073421 |
| Class Y                             | SVAYX         | C000147390 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                  | Ticker Symbol | Class ID   |
| CLASS F                     | SEMCX         | C000018199 |
| CLASS I                     | SIPIX         | C000030067 |
| SIMT Mid-Cap Fund - Class G | nan           | C000073422 |
| Class Y                     | SFDYX         | C000147391 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                                | Ticker Symbol | Class ID   |
| SIMT TAX-MANAGED LARGE CAP FUND - CLASS T | nan           | C000018200 |
| CLASS F                                   | TMLCX         | C000018201 |
| SIMT Tax-Managed Large Cap Fund - Class G | nan           | C000073423 |
| Class Y                                   | STLYX         | C000147392 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                                    | Ticker Symbol | Class ID   |
| CLASS F                                       | STMSX         | C000018202 |
| SIMT Tax-Managed Small/MID Cap Fund - Class G | nan           | C000073424 |
| Class Y                                       | STMPX         | C000147393 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                                  | Ticker Symbol | Class ID   |
| CLASS F                                     | SVOAX         | C000018203 |
| Class I                                     | SEVIX         | C000036885 |
| SIMT U.S. Managed Volatility Fund - Class G | nan           | C000073425 |
| Class Y                                     | SUSYX         | C000147394 |

---

### SIMT ENHANCED INCOME FUND (Series ID: S000010829)

---

|  |  |  |
|:---|:---|:---|
| Class Name                          | Ticker Symbol | Class ID   |
| CLASS F                             | SEEAX         | C000030062 |
| Class I                             | SEIIX         | C000036886 |
| SIMT Enhanced Income Fund - Class G | nan           | C000073426 |
| Class Y                             | SNHYX         | C000147395 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                                    | Ticker Symbol | Class ID   |
| CLASS F                                       | SVTAX         | C000030063 |
| Class I                                       | SGMIX         | C000036887 |
| SIMT Global Managed Volatility Fund - Class G | nan           | C000073427 |
| Class Y                                       | SGLYX         | C000147396 |

---

### SIMT SMALL/MID CAP DIVERSIFIED ALPHA FUND (Series ID: S000010831)

---

|  |  |
|:---|:---|
| Class Name                                          | Class ID   |
| SIMT SMALL/MID CAP DIVERSIFIED ALPHA FUND - CLASS A | C000030064 |
| SIMT SMALL/MID CAP DIVERSIFIED ALPHA FUND - CLASS I | C000030065 |
| SIMT Small/Mid Cap Diversified Alpha Fund - Class G | C000073428 |

---

### SIMT Enhanced Income Fund - Class F, effective 1-31-2017 (formerly Class A) (Series ID: S000012016)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class F    | C000032747 |

---

### SIMT Global Managed Volatility Fund - Class A (Series ID: S000012017)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class A    | C000032748 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SRAAX         | C000036881 |
| Class I    | SSRIX         | C000036882 |
| Class G    | nan           | C000078070 |
| Class Y    | SRYRX         | C000147397 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                                         | Ticker Symbol | Class ID   |
| Class F                                            | TMMAX         | C000047774 |
| SIMT Tax-Managed Managed Volatility Fund - Class I | nan           | C000047775 |
| SIMT Tax-Managed Managed Volatility Fund - Class G | nan           | C000073429 |
| Class Y                                            | STVYX         | C000147398 |

---

### SIMT Prime Obligation Fund (Series ID: S000018489)

---

|  |  |
|:---|:---|
| Class Name | Class ID   |
| Class A    | C000051279 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SSPIX         | C000051280 |
| Class E    | TRQIX         | C000051281 |
| Class I    | SPIIX         | C000051282 |
| Class Y    | SETYX         | C000158776 |

---

### SIMT U.S. Fixed Income Fund (Series ID: S000025531)

---

|  |  |  |
|:---|:---|:---|
| Class Name                            | Ticker Symbol | Class ID   |
| Class F                               | SUFAX         | C000076445 |
| SIMT U.S. Fixed Income Fund - Class G | nan           | C000076446 |
| Class I                               | SUFIX         | C000076447 |
| Class Y                               | SUSWX         | C000147399 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                    | Ticker Symbol | Class ID   |
| Class F                       | SLGAX         | C000078064 |
| SIMT Large Cap Fund - Class G | nan           | C000078065 |
| SIMT Large Cap Fund - Class I | nan           | C000078066 |
| Class Y                       | SLYCX         | C000147400 |

---

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

---

|  |  |  |
|:---|:---|:---|
| Class Name                    | Ticker Symbol | Class ID   |
| Class F                       | SLLAX         | C000078067 |
| SIMT Small Cap Fund - Class G | nan           | C000078068 |
| SIMT Small Cap Fund - Class I | nan           | C000078069 |
| 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 MULTI-ASSET ACCUMULATION FUND (Series ID: S000035779)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SAAAX         | C000109624 |
| Class Y    | SMOYX         | C000147403 |

---

### SIMT MULTI-ASSET INCOME FUND (Series ID: S000035780)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SIOAX         | C000109625 |
| Class Y    | SLIYX         | C000147404 |

---

### SIMT MULTI-ASSET INFLATION MANAGED FUND (Series ID: S000035781)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SIFAX         | C000109626 |
| Class Y    | SLFYX         | C000147405 |

---

### SIMT MULTI-ASSET CAPITAL STABILITY FUND (Series ID: S000035782)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SCLAX         | C000109627 |
| Class Y    | SMLYX         | C000147406 |

---

### SIMT Long/Short Alternative Fund (Series ID: S000047600)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class F    | SNAAX         | C000149438 |
| Class Y    | SLSFX         | C000152581 |

---

### 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 |

---

### SIMT Liquid Alternative Fund (Series ID: S000080611)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| Class Y    | LLOAX         | C000243125 |
| Class F    | LLOBX         | C000243126 |

---

## Series and Classes Contracts Data

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

| Class ID   | Class Name                            | Ticker Symbol   |
|:---|:---|:---|
| C000018186 | CLASS I                               | SCXIX           |
| C000018187 | CLASS F                               | TRLVX           |
| C000073414 | SIMT Core Fixed Income Fund - Class G |  |
| C000147384 | Class Y                               | SCFYX           |

### SIMT LARGE CAP DIVERSIFIED ALPHA FUND (Series ID: S000006668)

| Class ID   | Class Name                                      | Ticker Symbol   |
|:---|:---|:---|
| C000018188 | SIMT LARGE CAP DIVERSIFIED ALPHA FUND - CLASS A |  |
| C000030066 | SIMT LARGE CAP DIVERSIFIED ALPHA FUND - CLASS I |  |
| C000073415 | SIMT Large Cap Diversified Alpha Fund - Class G |  |

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

| Class ID   | Class Name                      | Ticker Symbol   |
|:---|:---|:---|
| C000018189 | CLASS F                         | SETAX           |
| C000036883 | Class I                         | SEIRX           |
| C000073416 | SIMT Real Estate Fund - Class G |  |
| C000147385 | Class Y                         | SREYX           |

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

| Class ID   | Class Name                           | Ticker Symbol   |
|:---|:---|:---|
| C000018190 | CLASS I                              | SPWIX           |
| C000018191 | CLASS F                              | SSCGX           |
| C000073417 | SIMT Small Cap Growth Fund - Class G |  |
| C000147386 | Class Y                              | SMAYX           |

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

| Class ID   | Class Name                           | Ticker Symbol   |
|:---|:---|:---|
| C000018192 | CLASS I                              | SPGIX           |
| C000018193 | CLASS F                              | SELCX           |
| C000073418 | SIMT Large Cap Growth Fund - Class G |  |
| C000147387 | Class Y                              | SLRYX           |

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

| Class ID   | Class Name                          | Ticker Symbol   |
|:---|:---|:---|
| C000018194 | CLASS I                             | SMVIX           |
| C000018195 | CLASS F                             | SESVX           |
| C000073419 | SIMT Small Cap Value Fund - Class G |  |
| C000147388 | Class Y                             | SPVYX           |

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

| Class ID   | Class Name                          | Ticker Symbol   |
|:---|:---|:---|
| C000018196 | CLASS F                             | SHYAX           |
| C000036884 | Class I                             | SEIYX           |
| C000073420 | SIMT High Yield Bond Fund - Class G |  |
| C000147389 | Class Y                             | SIYYX           |

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

| Class ID   | Class Name                          | Ticker Symbol   |
|:---|:---|:---|
| C000018197 | CLASS I                             | SEUIX           |
| C000018198 | CLASS F                             | TRMVX           |
| C000073421 | SIMT Large Cap Value Fund - Class G |  |
| C000147390 | Class Y                             | SVAYX           |

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

| Class ID   | Class Name                  | Ticker Symbol   |
|:---|:---|:---|
| C000018199 | CLASS F                     | SEMCX           |
| C000030067 | CLASS I                     | SIPIX           |
| C000073422 | SIMT Mid-Cap Fund - Class G |  |
| C000147391 | Class Y                     | SFDYX           |

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

| Class ID   | Class Name                                | Ticker Symbol   |
|:---|:---|:---|
| C000018200 | SIMT TAX-MANAGED LARGE CAP FUND - CLASS T |  |
| C000018201 | CLASS F                                   | TMLCX           |
| C000073423 | SIMT Tax-Managed Large Cap Fund - Class G |  |
| C000147392 | Class Y                                   | STLYX           |

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

| Class ID   | Class Name                                    | Ticker Symbol   |
|:---|:---|:---|
| C000018202 | CLASS F                                       | STMSX           |
| C000073424 | SIMT Tax-Managed Small/MID Cap Fund - Class G |  |
| C000147393 | Class Y                                       | STMPX           |

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

| Class ID   | Class Name                                  | Ticker Symbol   |
|:---|:---|:---|
| C000018203 | CLASS F                                     | SVOAX           |
| C000036885 | Class I                                     | SEVIX           |
| C000073425 | SIMT U.S. Managed Volatility Fund - Class G |  |
| C000147394 | Class Y                                     | SUSYX           |

### SIMT ENHANCED INCOME FUND (Series ID: S000010829)

| Class ID   | Class Name                          | Ticker Symbol   |
|:---|:---|:---|
| C000030062 | CLASS F                             | SEEAX           |
| C000036886 | Class I                             | SEIIX           |
| C000073426 | SIMT Enhanced Income Fund - Class G |  |
| C000147395 | Class Y                             | SNHYX           |

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

| Class ID   | Class Name                                    | Ticker Symbol   |
|:---|:---|:---|
| C000030063 | CLASS F                                       | SVTAX           |
| C000036887 | Class I                                       | SGMIX           |
| C000073427 | SIMT Global Managed Volatility Fund - Class G |  |
| C000147396 | Class Y                                       | SGLYX           |

### SIMT SMALL/MID CAP DIVERSIFIED ALPHA FUND (Series ID: S000010831)

| Class ID   | Class Name                                          | Ticker Symbol   |
|:---|:---|:---|
| C000030064 | SIMT SMALL/MID CAP DIVERSIFIED ALPHA FUND - CLASS A |  |
| C000030065 | SIMT SMALL/MID CAP DIVERSIFIED ALPHA FUND - CLASS I |  |
| C000073428 | SIMT Small/Mid Cap Diversified Alpha Fund - Class G |  |

### SIMT Enhanced Income Fund - Class F, effective 1-31-2017 (formerly Class A) (Series ID: S000012016)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000032747 | Class F      |  |

### SIMT Global Managed Volatility Fund - Class A (Series ID: S000012017)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000032748 | Class A      |  |

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

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000036881 | Class F      | SRAAX           |
| C000036882 | Class I      | SSRIX           |
| C000078070 | Class G      |  |
| C000147397 | Class Y      | SRYRX           |

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

| Class ID   | Class Name                                         | Ticker Symbol   |
|:---|:---|:---|
| C000047774 | Class F                                            | TMMAX           |
| C000047775 | SIMT Tax-Managed Managed Volatility Fund - Class I |  |
| C000073429 | SIMT Tax-Managed Managed Volatility Fund - Class G |  |
| C000147398 | Class Y                                            | STVYX           |

### SIMT Prime Obligation Fund (Series ID: S000018489)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000051279 | Class A      |  |

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

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000051280 | Class F      | SSPIX           |
| C000051281 | Class E      | TRQIX           |
| C000051282 | Class I      | SPIIX           |
| C000158776 | Class Y      | SETYX           |

### SIMT U.S. Fixed Income Fund (Series ID: S000025531)

| Class ID   | Class Name                            | Ticker Symbol   |
|:---|:---|:---|
| C000076445 | Class F                               | SUFAX           |
| C000076446 | SIMT U.S. Fixed Income Fund - Class G |  |
| C000076447 | Class I                               | SUFIX           |
| C000147399 | Class Y                               | SUSWX           |

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

| Class ID   | Class Name                    | Ticker Symbol   |
|:---|:---|:---|
| C000078064 | Class F                       | SLGAX           |
| C000078065 | SIMT Large Cap Fund - Class G |  |
| C000078066 | SIMT Large Cap Fund - Class I |  |
| C000147400 | Class Y                       | SLYCX           |

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

| Class ID   | Class Name                    | Ticker Symbol   |
|:---|:---|:---|
| C000078067 | Class F                       | SLLAX           |
| C000078068 | SIMT Small Cap Fund - Class G |  |
| C000078069 | SIMT Small Cap Fund - Class I |  |
| 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 MULTI-ASSET ACCUMULATION FUND (Series ID: S000035779)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000109624 | Class F      | SAAAX           |
| C000147403 | Class Y      | SMOYX           |

### SIMT MULTI-ASSET INCOME FUND (Series ID: S000035780)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000109625 | Class F      | SIOAX           |
| C000147404 | Class Y      | SLIYX           |

### SIMT MULTI-ASSET INFLATION MANAGED FUND (Series ID: S000035781)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000109626 | Class F      | SIFAX           |
| C000147405 | Class Y      | SLFYX           |

### SIMT MULTI-ASSET CAPITAL STABILITY FUND (Series ID: S000035782)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000109627 | Class F      | SCLAX           |
| C000147406 | Class Y      | SMLYX           |

### SIMT Long/Short Alternative Fund (Series ID: S000047600)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000149438 | Class F      | SNAAX           |
| C000152581 | Class Y      | SLSFX           |

### 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           |

### SIMT Liquid Alternative Fund (Series ID: S000080611)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000243125 | Class Y      | LLOAX           |
| C000243126 | Class F      | LLOBX           |

## FORM 24F-2NT: Annual Notice of Securities Sold Pursuant to Rule 24f-2

### 24F-2NT: Filer Information

**Filer CIK:** 0000804239

**Is this a LIVE or TEST Filing?:** LIVE

**Filer Investment Company Type:** N-1A

### 24F-2NT: Annual Filing Information

**1. Name and address of issuer:**

- **Name of Issuer:** SEI INSTITUTIONAL MANAGED TRUST

- **Address:** One Freedom Valley Drive, Oaks, PA 19456

**2. The Name and EDGAR Identifier of each series or class of securities for which this Form is filed:**

- [ ] Check box if the Form is being filed for all series and classes of the issuer.

**3. Investment Company Act File Number:** 811-04878

   **Securities Act File Number:** 033-09504

**4(a). Last day of fiscal year for which this Form is filed:** 09/30/2025

**4(b). Check box if this Form is being filed late:** [ ]

**4(c). Check box if this is the last time the issuer will be filing this Form:** [ ]

**5. Calculation of registration fee:**

- **(i) Aggregate sale price of securities sold during the fiscal year:** $6916457000.00

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $8056460000.00

- **(iii) Aggregate price of securities redeemed or repurchased during any prior fiscal year:** $6589378000.00

- **(iv) Total available redemption credits [add Items 5(ii) and 5(iii)]:** $14645838000.00

- **(v) Net sales:** $0.00

- **(vi) Redemption credits available for use in future years:** $-7729381000.00

- **(vii) Multiplier for determining registration fee:** 0.0001381

- **(viii) Registration fee due:** $0.00

**Signatures**

**Name and Title:** Controller and Chief Financial Officer

**Date:** 12/29/2025

**Signature:** Glenn Kurdziel