# EDGAR Filing Document

**Accession Number:** 0000063068
**File Stem:** 0002071691-25-003689
**Filing Date:** 2025-10
**Character Count:** 40225
**Document Hash:** b561dfb42b92ec31239c24f1d229af70
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002071691-25-003689.hdr.sgml**: 20251027

**ACCESSION NUMBER**: 0002071691-25-003689

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250831

**FILED AS OF DATE**: 20251027

**DATE AS OF CHANGE**: 20251027

**PERIOD START**: 20250831

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MFS SERIES TRUST IV
- **CENTRAL INDEX KEY:** 0000063068

**ORGANIZATION NAME:**
- **EIN:** 046382595
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-02594
- **FILM NUMBER:** 251420581

**BUSINESS ADDRESS:**
- **STREET 1:** 111 HUNTINGTON AVENUE
- **STREET 2:** 21ST FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02199
- **BUSINESS PHONE:** 18006372929

**MAIL ADDRESS:**
- **STREET 1:** 111 HUNTINGTON AVENUE
- **STREET 2:** 21ST FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02199

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MFS MUNICIPAL BOND FUND /MA/
- **DATE OF NAME CHANGE:** 19930910

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MASSACHUSETTS CASH MANAGEMENT TRUST
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### MFS Mid Cap Growth Fund (Series ID: S000002434)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000006504 | A            | OTCAX           |
| C000006505 | R4           | OTCJX           |
| C000006509 | B            | OTCBX           |
| C000006510 | C            | OTCCX           |
| C000006511 | I            | OTCIX           |
| C000006513 | R1           | OTCGX           |
| C000006515 | R2           | MCPRX           |
| C000006516 | R3           | OTCHX           |
| C000124428 | R6           | OTCKX           |

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** MFS Series Trust IV

- **b. Investment Company Act file number:** 811-02594

- **c. CIK number of Registrant:** 0000063068

- **d. LEI of Registrant:** 549300SSA281MOJG8J61

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 111 Huntington Avenue

  - **City:** Boston

  - **State:** MA

  - **Foreign country:** US

  - **Zip / Postal Code:** 02199

  - **Telephone number:** 617-954-5000

**Item A.2. Information about the Series.**

- **a. Name of Series:** MFS Mid Cap Growth Fund

- **b. EDGAR series identifier (if any):** S000002434

- **c. LEI of Series:** XPX0WXKIO6CLKBLYF666

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2025-08-31

- **b. Date as of which information is reported:** 2025-08-31

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $15203557343.57

**Total Liabilities:** $18377975.99

**Net Assets:** $15185179367.58

**Cash Not Reported:** $247.98

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000006513 | 5.53%                | -0.35%               | 0.39%                |
| Class ID C000006516 | 5.58%                | -0.26%               | 0.43%                |
| Class ID C000006511 | 5.59%                | -0.27%               | 0.45%                |
| Class ID C000006509 | 5.54%                | -0.34%               | 0.35%                |
| Class ID C000124428 | 5.60%                | -0.23%               | 0.44%                |
| Class ID C000006505 | 5.62%                | -0.24%               | 0.43%                |
| Class ID C000006515 | 5.57%                | -0.28%               | 0.39%                |
| Class ID C000006510 | 5.51%                | -0.31%               | 0.36%                |
| Class ID C000006504 | 5.58%                | -0.26%               | 0.42%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $308157829.35            | $528530020.58                              |
| Month 2  | $539308599.23            | $-576369862.40                             |
| Month 3  | $176305667.14            | $-107155111.09                             |

### Schedule of Portfolio Investments

| Name                                      | Title                                                      | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| CBRE Group, Inc.                          | CBRE Group, Inc., Class A                                  | CUSIP: 12504L109<br>LEI: 52990016II9MJ2OSWA10 | Long             | EC               | CORP              | US        |   1887761 | NS      | $306043813.32 | 2.02%             |  |  |  | No            |                  1 | On Loan: No      |
| ServiceTitan, Inc.                        | ServiceTitan, Inc., Class A                                | CUSIP: 81764X103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    270672 | NS      | $29024158.56  | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Cadence Design Systems, Inc.              | Cadence Design Systems, Inc.                               | CUSIP: 127387108<br>LEI: GCT7RXJOGLXPV0NXZY22 | Long             | EC               | CORP              | US        |    746375 | NS      | $261552191.25 | 1.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Mirion Technologies, Inc.                 | Mirion Technologies, Inc.                                  | CUSIP: 60471A101<br>LEI: 549300BNTOWVWFNVTJ65 | Long             | EC               | CORP              | US        |   2208881 | NS      | $45282060.50  | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Vulcan Materials Co.                      | Vulcan Materials Co.                                       | CUSIP: 929160109<br>LEI: 549300Q8LSNHAVWBNI21 | Long             | EC               | CORP              | US        |    783086 | NS      | $228003319.76 | 1.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Robinhood Markets, Inc.                   | Robinhood Markets, Inc., Class A                           | CUSIP: 770700102<br>LEI: 213800FS5AO3YWIE6F63 | Long             | EC               | CORP              | US        |   2451382 | NS      | $255017269.46 | 1.68%             |  |  |  | No            |                  1 | On Loan: No      |
| AMETEK, Inc.                              | AMETEK, Inc.                                               | CUSIP: 031100100<br>LEI: 549300WZDEF9KKE40E98 | Long             | EC               | CORP              | US        |    131819 | NS      | $24360151.20  | 0.16%             |  |  |  | No            |                  1 | On Loan: No      |
| CoStar Group, Inc.                        | CoStar Group, Inc.                                         | CUSIP: 22160N109<br>LEI: 984500Q1D53D08E2E698 | Long             | EC               | CORP              | US        |   2649488 | NS      | $237102681.12 | 1.56%             |  |  |  | No            |                  1 | On Loan: No      |
| Oddity Tech Ltd.                          | Oddity Tech Ltd., Class A                                  | CUSIP: N/A<br>LEI: 254900QH12XZS53G0V57       | Long             | EC               | CORP              | IL        |   1067706 | NS      | $64286578.26  | 0.42%             |  |  |  | No            |                  1 | On Loan: No      |
| MFS Institutional Money Market Portfolio  | MFS Institutional Money Market Portfolio, Class A          | CUSIP: 55291X109<br>LEI: 5L2W638H85N8T1136O07 | Long             | STIV             | RF                | US        | 140761426 | NS      | $140775502.09 | 0.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Curtiss-Wright Corp.                      | Curtiss-Wright Corp.                                       | CUSIP: 231561101<br>LEI: TEL51ETZWP7D0ZM4X325 | Long             | EC               | CORP              | US        |    244142 | NS      | $116736497.30 | 0.77%             |  |  |  | No            |                  1 | On Loan: No      |
| BJ's Wholesale Club Holdings, Inc.        | BJ's Wholesale Club Holdings, Inc.                         | CUSIP: 05550J101<br>LEI: 549300UCIWH1C93V0J03 | Long             | EC               | CORP              | US        |   1136331 | NS      | $110996812.08 | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Waters Corp.                              | Waters Corp.                                               | CUSIP: 941848103<br>LEI: 5T547R1474YC9HOD8Q74 | Long             | EC               | CORP              | US        |    189423 | NS      | $57167861.40  | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Howmet Aerospace, Inc.                    | Howmet Aerospace, Inc.                                     | CUSIP: 443201108<br>LEI: 549300HO5WFZUT5N2T22 | Long             | EC               | CORP              | US        |   3238792 | NS      | $563873687.20 | 3.71%             |  |  |  | No            |                  1 | On Loan: No      |
| Floor & Decor Holdings, Inc.              | Floor & Decor Holdings, Inc., Class A                      | CUSIP: 339750101<br>LEI: 549300M5FR3N688XGQ36 | Long             | EC               | CORP              | US        |    443309 | NS      | $36315873.28  | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Expand Energy Corp.                       | Expand Energy Corp.                                        | CUSIP: 165167735<br>LEI: X2MT1W32SPAZ9WSKLE78 | Long             | EC               | CORP              | US        |    897830 | NS      | $86891987.40  | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Trimble, Inc.                             | Trimble, Inc.                                              | CUSIP: 896239100<br>LEI: 549300E2MI7NSZFQWS19 | Long             | EC               | CORP              | US        |   2373788 | NS      | $191849546.16 | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Cheniere Energy, Inc.                     | Cheniere Energy, Inc.                                      | CUSIP: 16411R208<br>LEI: MIHC87W9WTYSYZWV1J40 | Long             | EC               | CORP              | US        |   1168741 | NS      | $282624948.62 | 1.86%             |  |  |  | No            |                  1 | On Loan: No      |
| N/A                                       | Constellation Software, Inc.                               | CUSIP: 21037X134<br>LEI: N/A                  | N/A              | DO               |  | CA        |    115391 | NS      | $0.00         | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| Bullish                                   | Bullish                                                    | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | CORP              | KY        |    215461 | NS      | $12718662.83  | 0.08%             |  |  |  | No            |                  1 | On Loan: No      |
| Spotify Technology SA                     | Spotify Technology SA                                      | CUSIP: N/A<br>LEI: 549300B4X0JHWV0DTD60       | Long             | EC               | CORP              | LU        |    634864 | NS      | $432901064.32 | 2.85%             |  |  |  | No            |                  1 | On Loan: No      |
| Bright Horizons Family Solutions, Inc.    | Bright Horizons Family Solutions, Inc.                     | CUSIP: 109194100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |   1026269 | NS      | $121140792.76 | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| Tempus AI, Inc.                           | Tempus AI, Inc.                                            | CUSIP: 88023B103<br>LEI: 2549009LA0KWRAGQBX50 | Long             | EC               | CORP              | US        |    224112 | NS      | $17001136.32  | 0.11%             |  |  |  | No            |                  1 | On Loan: —       |
| Morningstar, Inc.                         | Morningstar, Inc.                                          | CUSIP: 617700109<br>LEI: 529900YGNQPOVAXQ7F29 | Long             | EC               | CORP              | US        |    168515 | NS      | $44221706.30  | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| US Foods Holding Corp.                    | US Foods Holding Corp.                                     | CUSIP: 912008109<br>LEI: 549300UGOZSO64CFPR97 | Long             | EC               | CORP              | US        |    565516 | NS      | $43884041.60  | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Aramark                                   | Aramark                                                    | CUSIP: 03852U106<br>LEI: 549300MR6PG2DWZUIL39 | Long             | EC               | CORP              | US        |   2694108 | NS      | $105366563.88 | 0.69%             |  |  |  | No            |                  1 | On Loan: No      |
| DraftKings, Inc.                          | DraftKings, Inc., Class A                                  | CUSIP: 26142V105<br>LEI: 2549006G33IUL6IVOD83 | Long             | EC               | CORP              | US        |   4943661 | NS      | $237196854.78 | 1.56%             |  |  |  | No            |                  1 | On Loan: No      |
| Pegasystems, Inc.                         | Pegasystems, Inc.                                          | CUSIP: 705573103<br>LEI: 549300FMCOKPL06FYN26 | Long             | EC               | CORP              | US        |   1161353 | NS      | $62956946.13  | 0.41%             |  |  |  | No            |                  1 | On Loan: No      |
| PTC, Inc.                                 | PTC, Inc.                                                  | CUSIP: 69370C100<br>LEI: 54930050SSMU8SKDJ030 | Long             | EC               | CORP              | US        |    121856 | NS      | $26016256.00  | 0.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Westinghouse Air Brake Technologies Corp. | Westinghouse Air Brake Technologies Corp.                  | CUSIP: 929740108<br>LEI: 06BTX5UWZD0GQ5N5Y745 | Long             | EC               | CORP              | US        |    554582 | NS      | $107311617.00 | 0.71%             |  |  |  | No            |                  1 | On Loan: No      |
| ACV Auctions, Inc.                        | ACV Auctions, Inc., Class A                                | CUSIP: 00091G104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |   5126540 | NS      | $59775456.40  | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Viking Holdings Ltd.                      | Viking Holdings Ltd.                                       | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | CORP              | BM        |   2430593 | NS      | $154634326.66 | 1.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Chipotle Mexican Grill, Inc.              | Chipotle Mexican Grill, Inc.                               | CUSIP: 169656105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    489609 | NS      | $20632123.26  | 0.14%             |  |  |  | No            |                  1 | On Loan: No      |
| Carvana Co.                               | Carvana Co.                                                | CUSIP: 146869102<br>LEI: 5493003WEAK2PJ5WS063 | Long             | EC               | CORP              | US        |    450609 | NS      | $167590499.28 | 1.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Veeva Systems, Inc.                       | Veeva Systems, Inc., Class A                               | CUSIP: 922475108<br>LEI: 549300YZEXPDB92M2F02 | Long             | EC               | CORP              | US        |    766615 | NS      | $206372758.00 | 1.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Vertiv Holdings Co.                       | Vertiv Holdings Co., Class A                               | CUSIP: 92537N108<br>LEI: 549300KTTIRAOGXCRV69 | Long             | EC               | CORP              | US        |    522451 | NS      | $66638625.05  | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |
| ROBLOX Corp.                              | ROBLOX Corp., Class A                                      | CUSIP: 771049103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |   3072942 | NS      | $382857843.78 | 2.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Performance Food Group Co.                | Performance Food Group Co.                                 | CUSIP: 71377A103<br>LEI: 549300EUK8GR9IT1YK57 | Long             | EC               | CORP              | US        |    861040 | NS      | $87309456.00  | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Dollar General Corp.                      | Dollar General Corp.                                       | CUSIP: 256677105<br>LEI: OPX52SQVOZI8IVSWYU66 | Long             | EC               | CORP              | US        |    568463 | NS      | $61826035.88  | 0.41%             |  |  |  | No            |                  1 | On Loan: No      |
| TransDigm Group, Inc.                     | TransDigm Group, Inc.                                      | CUSIP: 893641100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     24637 | NS      | $34464206.56  | 0.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Royal Caribbean Cruises Ltd.              | Royal Caribbean Cruises Ltd.                               | CUSIP: N/A<br>LEI: K2NEH8QNVW44JIWK7Z55       | Long             | EC               | CORP              | LR        |    471849 | NS      | $171384993.78 | 1.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Natera, Inc.                              | Natera, Inc.                                               | CUSIP: 632307104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |   1420710 | NS      | $239034457.50 | 1.57%             |  |  |  | No            |                  1 | On Loan: No      |
| MSCI, Inc.                                | MSCI, Inc.                                                 | CUSIP: 55354G100<br>LEI: 549300HTIN2PD78UB763 | Long             | EC               | CORP              | US        |     68953 | NS      | $39145997.16  | 0.26%             |  |  |  | No            |                  1 | On Loan: No      |
| JPMORGAN US GOVERNMENT MONEY MKT FD       | JPMORGAN US GOVERNMENT MONEY MARKET FUND OPEN-END FUND USD | CUSIP: 4812C2270<br>LEI: 549300NQ5E5B7ZV4T516 | Long             | STIV             | RF                | US        |   4987245 | NS      | $4987245.15   | 0.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Axon Enterprise, Inc.                     | Axon Enterprise, Inc.                                      | CUSIP: 05464C101<br>LEI: 549300QP2IEEGFE16681 | Long             | EC               | CORP              | US        |    480692 | NS      | $359216324.68 | 2.37%             |  |  |  | No            |                  1 | On Loan: No      |
| ASM International NV                      | ASM International NV                                       | CUSIP: N/A<br>LEI: 7245001I22ND6ZFHX623       | Long             | EC               | CORP              | NL        |     43454 | NS      | $20878687.98  | 0.14%             |  |  |  | No            |                  1 | On Loan: No      |
| Exact Sciences Corp.                      | Exact Sciences Corp.                                       | CUSIP: 30063P105<br>LEI: 549300VM3X1FYD4N9Z14 | Long             | EC               | CORP              | US        |   2049849 | NS      | $97203839.58  | 0.64%             |  |  |  | No            |                  1 | On Loan: No      |
| Nasdaq, Inc.                              | Nasdaq, Inc.                                               | CUSIP: 631103108<br>LEI: 549300L8X1Q78ERXFD06 | Long             | EC               | CORP              | US        |   2457967 | NS      | $232867793.58 | 1.53%             |  |  |  | No            |                  1 | On Loan: No      |
| TKO Group Holdings, Inc.                  | TKO Group Holdings, Inc.                                   | CUSIP: 87256C101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |   1394733 | NS      | $264385587.48 | 1.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Live Nation Entertainment, Inc.           | Live Nation Entertainment, Inc.                            | CUSIP: 538034109<br>LEI: 5493007B9BM9ZXJINO78 | Long             | EC               | CORP              | US        |   2069757 | NS      | $344593842.93 | 2.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Datadog, Inc.                             | Datadog, Inc., Class A                                     | CUSIP: 23804L103<br>LEI: 549300F6JNO0KRPO1K63 | Long             | EC               | CORP              | US        |   1510491 | NS      | $206453909.88 | 1.36%             |  |  |  | No            |                  1 | On Loan: No      |
| BWX Technologies, Inc.                    | BWX Technologies, Inc.                                     | CUSIP: 05605H100<br>LEI: 549300NP85N265KWMS58 | Long             | EC               | CORP              | US        |    723309 | NS      | $117204990.36 | 0.77%             |  |  |  | No            |                  1 | On Loan: No      |
| Firefly Aerospace, Inc.                   | Firefly Aerospace, Inc.                                    | CUSIP: 31816X106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    395061 | NS      | $17923917.57  | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| VF Corp.                                  | VF Corp.                                                   | CUSIP: 918204108<br>LEI: CWAJJ9DJ5Z7P057HV541 | Long             | EC               | CORP              | US        |   1146201 | NS      | $17342021.13  | 0.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Carnival Corp.                            | Carnival Corp.                                             | CUSIP: 143658300<br>LEI: F1OF2ZSX47CR0BCWA982 | Long             | EC               | CORP              | PA        |   2049606 | NS      | $65361935.34  | 0.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Okta, Inc.                                | Okta, Inc.                                                 | CUSIP: 679295105<br>LEI: 549300N8J06I8MRHU620 | Long             | EC               | CORP              | US        |   1662729 | NS      | $154251369.33 | 1.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Ascendis Pharma A/S                       | Ascendis Pharma A/S                                        | CUSIP: 04351P101<br>LEI: 549300B66JN3W3J8GH73 | Long             | EC               | CORP              | DK        |   1282886 | NS      | $249226263.22 | 1.64%             |  |  |  | No            |                  1 | On Loan: No      |
| Expedia Group, Inc.                       | Expedia Group, Inc.                                        | CUSIP: 30212P303<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    199418 | NS      | $42834986.40  | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Arthur J Gallagher & Co.                  | Arthur J Gallagher & Co.                                   | CUSIP: 363576109<br>LEI: 54930049QLLMPART6V29 | Long             | EC               | CORP              | US        |    393813 | NS      | $119226885.75 | 0.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Dexcom, Inc.                              | Dexcom, Inc.                                               | CUSIP: 252131107<br>LEI: 549300YSK3QDSFR5EU59 | Long             | EC               | CORP              | US        |   2883049 | NS      | $217208911.66 | 1.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Quanta Services, Inc.                     | Quanta Services, Inc.                                      | CUSIP: 74762E102<br>LEI: SHVRXXEACT60MMH07S24 | Long             | EC               | CORP              | US        |    562860 | NS      | $212738565.60 | 1.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Manhattan Associates, Inc.                | Manhattan Associates, Inc.                                 | CUSIP: 562750109<br>LEI: 529900Q1GJP7KD52SW51 | Long             | EC               | CORP              | US        |    411608 | NS      | $88676827.52  | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Take-Two Interactive Software, Inc.       | Take-Two Interactive Software, Inc.                        | CUSIP: 874054109<br>LEI: BOMSTHHJK882EWYX3334 | Long             | EC               | CORP              | US        |   2008471 | NS      | $468516030.17 | 3.09%             |  |  |  | No            |                  1 | On Loan: No      |
| TPG, Inc.                                 | TPG, Inc.                                                  | CUSIP: 872657101<br>LEI: 549300NLO4R8MX77XJ02 | Long             | EC               | CORP              | US        |   1995140 | NS      | $120406699.00 | 0.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Wingstop, Inc.                            | Wingstop, Inc.                                             | CUSIP: 974155103<br>LEI: 549300SSH3F8HPIM3Q47 | Long             | EC               | CORP              | US        |    597718 | NS      | $196123230.16 | 1.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Vistra Corp.                              | Vistra Corp.                                               | CUSIP: 92840M102<br>LEI: 549300KP43CPCUJOOG15 | Long             | EC               | CORP              | US        |   2126480 | NS      | $402138632.80 | 2.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Masimo Corp.                              | Masimo Corp.                                               | CUSIP: 574795100<br>LEI: 549300Q4A8JK0PIYCU29 | Long             | EC               | CORP              | US        |   1647493 | NS      | $230171247.03 | 1.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Verisk Analytics, Inc.                    | Verisk Analytics, Inc.                                     | CUSIP: 92345Y106<br>LEI: 549300I1YSWNIRKBWP67 | Long             | EC               | CORP              | US        |    850644 | NS      | $228074669.28 | 1.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Guidewire Software, Inc.                  | Guidewire Software, Inc.                                   | CUSIP: 40171V100<br>LEI: 549300WXSG0J8IXZCK32 | Long             | EC               | CORP              | US        |   1966105 | NS      | $426684107.10 | 2.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Amer Sports, Inc.                         | Amer Sports, Inc.                                          | CUSIP: N/A<br>LEI: 391200YCSWTRD1J21867       | Long             | EC               | CORP              | KY        |    808578 | NS      | $31793286.96  | 0.21%             |  |  |  | No            |                  1 | On Loan: No      |
| GFL Environmental, Inc.                   | GFL Environmental, Inc.                                    | CUSIP: 36168Q104<br>LEI: 549300FYK4MBXWIVZU26 | Long             | EC               | CORP              | CA        |   2695434 | NS      | $134879517.36 | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Agilent Technologies, Inc.                | Agilent Technologies, Inc.                                 | CUSIP: 00846U101<br>LEI: QUIX8Y7A2WP0XRMW7G29 | Long             | EC               | CORP              | US        |    873143 | NS      | $109719149.38 | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Figma, Inc.                               | Figma, Inc., Class A                                       | CUSIP: 316841105<br>LEI: 254900273Q0J4Z65HU28 | Long             | EC               | CORP              | US        |    245294 | NS      | $17239262.32  | 0.11%             |  |  |  | No            |                  1 | On Loan: No      |
| LPL Financial Holdings, Inc.              | LPL Financial Holdings, Inc.                               | CUSIP: 50212V100<br>LEI: 549300XROQ4Y8G2L7682 | Long             | EC               | CORP              | US        |    872223 | NS      | $317907839.04 | 2.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Hubbell, Inc.                             | Hubbell, Inc.                                              | CUSIP: 443510607<br>LEI: 54930088VDQ6840Y6597 | Long             | EC               | CORP              | US        |     83532 | NS      | $36001456.68  | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Ares Management Corp.                     | Ares Management Corp.                                      | CUSIP: 03990B101<br>LEI: 529900JUV61FH7B8VW38 | Long             | EC               | CORP              | US        |   1410856 | NS      | $252825395.20 | 1.66%             |  |  |  | No            |                  1 | On Loan: No      |
| Sportradar Group AG                       | Sportradar Group AG, Class A                               | CUSIP: N/A<br>LEI: 549300H1P33YOAT7Z533       | Long             | EC               | CORP              | CH        |   3652251 | NS      | $113000645.94 | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| TransUnion                                | TransUnion                                                 | CUSIP: 89400J107<br>LEI: 549300ZS772LUNUMRB03 | Long             | EC               | CORP              | US        |   2433650 | NS      | $215134660.00 | 1.42%             |  |  |  | No            |                  1 | On Loan: No      |
| CDW Corp.                                 | CDW Corp.                                                  | CUSIP: 12514G108<br>LEI: 9845001B052ABF0B6755 | Long             | EC               | CORP              | US        |     99268 | NS      | $16355395.68  | 0.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Hexcel Corp.                              | Hexcel Corp.                                               | CUSIP: 428291108<br>LEI: S6Q7LW43WUBUHXY2QP69 | Long             | EC               | CORP              | US        |   1001266 | NS      | $63229947.90  | 0.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Tapestry, Inc.                            | Tapestry, Inc.                                             | CUSIP: 876030107<br>LEI: 549300LJNVY5SW3VTN33 | Long             | EC               | CORP              | US        |   1047556 | NS      | $106662151.92 | 0.70%             |  |  |  | No            |                  1 | On Loan: No      |
| Coupang, Inc.                             | Coupang, Inc.                                              | CUSIP: 22266T109<br>LEI: 549300XR4L1D80AK4W76 | Long             | EC               | CORP              | US        |   7685735 | NS      | $219658306.30 | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| STERIS plc                                | STERIS plc                                                 | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | CORP              | IE        |    553757 | NS      | $135703690.42 | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Tradeweb Markets, Inc.                    | Tradeweb Markets, Inc., Class A                            | CUSIP: 892672106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    717351 | NS      | $88492419.36  | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Tractor Supply Co.                        | Tractor Supply Co.                                         | CUSIP: 892356106<br>LEI: 549300OJ9VZHZRO6I137 | Long             | EC               | CORP              | US        |    614890 | NS      | $37975606.40  | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Astera Labs, Inc.                         | Astera Labs, Inc.                                          | CUSIP: 04626A103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |   1265590 | NS      | $230590498.00 | 1.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Tyler Technologies, Inc.                  | Tyler Technologies, Inc.                                   | CUSIP: 902252105<br>LEI: 25490040SMU4Z8LBCW70 | Long             | EC               | CORP              | US        |    461809 | NS      | $259943049.92 | 1.71%             |  |  |  | No            |                  1 | On Loan: No      |
| Copart, Inc.                              | Copart, Inc.                                               | CUSIP: 217204106<br>LEI: 549300KVYX3JWMYEHU61 | Long             | EC               | CORP              | US        |   1406165 | NS      | $68634913.65  | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Cameco Corp.                              | Cameco Corp.                                               | CUSIP: 13321L108<br>LEI: N4BHALMXL3GMZKCUON55 | Long             | EC               | CORP              | CA        |   1418201 | NS      | $109754575.39 | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| O'Reilly Automotive, Inc.                 | O'Reilly Automotive, Inc.                                  | CUSIP: 67103H107<br>LEI: 549300K2RLMQL149Q332 | Long             | EC               | CORP              | US        |   2151640 | NS      | $223082035.20 | 1.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Q2 Holdings, Inc.                         | Q2 Holdings, Inc.                                          | CUSIP: 74736L109<br>LEI: 549300M9RKR9DZXWS696 | Long             | EC               | CORP              | US        |   1018876 | NS      | $80216107.48  | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Constellation Software, Inc.              | Constellation Software, Inc.                               | CUSIP: 21037X100<br>LEI: 549300B6PYHMCTDWQV29 | Long             | EC               | CORP              | CA        |     83398 | NS      | $276323774.22 | 1.82%             |  |  |  | No            |                  1 | On Loan: No      |
| Hyatt Hotels Corp.                        | Hyatt Hotels Corp., Class A                                | CUSIP: 448579102<br>LEI: T27JQIMTYSH41TCD5186 | Long             | EC               | CORP              | US        |   1117087 | NS      | $161173312.36 | 1.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Carlyle Group, Inc. (The)                 | Carlyle Group, Inc. (The)                                  | CUSIP: 14316J108<br>LEI: 529900NGGVF94UK6PG95 | Long             | EC               | CORP              | US        |   3541573 | NS      | $228643952.88 | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Caris Life Sciences, Inc.                 | Caris Life Sciences, Inc.                                  | CUSIP: 142152107<br>LEI: 549300LX5LO78M5VPY43 | Long             | EC               | CORP              | US        |    494099 | NS      | $18968460.61  | 0.12%             |  |  |  | No            |                  1 | On Loan: —       |
| Burlington Stores, Inc.                   | Burlington Stores, Inc.                                    | CUSIP: 122017106<br>LEI: 5299003Z37DVGKKC1W09 | Long             | EC               | CORP              | US        |    585860 | NS      | $170297784.80 | 1.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Chewy, Inc.                               | Chewy, Inc., Class A                                       | CUSIP: 16679L109<br>LEI: 254900NPQSTG9I422879 | Long             | EC               | CORP              | US        |   1139935 | NS      | $46691737.60  | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Cloudflare, Inc.                          | Cloudflare, Inc., Class A                                  | CUSIP: 18915M107<br>LEI: 5493007DY18BGNLDWU14 | Long             | EC               | CORP              | US        |    563371 | NS      | $117581161.41 | 0.77%             |  |  |  | No            |                  1 | On Loan: No      |
| Block, Inc.                               | Block, Inc.                                                | CUSIP: 852234103<br>LEI: 549300OHIIUWSTIZME52 | Long             | EC               | CORP              | US        |   1429076 | NS      | $113811612.64 | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Monolithic Power Systems, Inc.            | Monolithic Power Systems, Inc.                             | CUSIP: 609839105<br>LEI: 529900TB7O85LSZ1XU31 | Long             | EC               | CORP              | US        |    356628 | NS      | $298055417.28 | 1.96%             |  |  |  | No            |                  1 | On Loan: No      |
| Melrose Industries plc                    | Melrose Industries plc                                     | CUSIP: N/A<br>LEI: 213800RGNXXZY2M7TR85       | Long             | EC               | CORP              | GB        |   6198923 | NS      | $49265370.24  | 0.32%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-09-30

**Name of Applicant:** MFS Series Trust IV

**Signature:** James Byrne

**Name of Signer:** James Byrne

**Title:** Assistant Treasurer