# EDGAR Filing Document

**Accession Number:** 0000783740
**File Stem:** 0002071691-25-003688
**Filing Date:** 2025-10
**Character Count:** 60878
**Document Hash:** fe1dff198ff1ddfe7096163ab5c052ff
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002071691-25-003688.hdr.sgml**: 20251027

**ACCESSION NUMBER**: 0002071691-25-003688

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 4

**CONFORMED PERIOD OF REPORT**: 20250831

**FILED AS OF DATE**: 20251027

**DATE AS OF CHANGE**: 20251027

**PERIOD START**: 20260531

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MFS SERIES TRUST X
- **CENTRAL INDEX KEY:** 0000783740

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-04492
- **FILM NUMBER:** 251420580

**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 GOVERNMENT MORTGAGE FUND
- **DATE OF NAME CHANGE:** 19930408

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MFS GOVERNMENT INCOME PLUS FUND
- **DATE OF NAME CHANGE:** 19930312

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MASSACHUSETTS MFS GOVERNMENT INCOME PLUS FUND
- **DATE OF NAME CHANGE:** 19921015

## Series and Classes Contracts Data

### MFS International Large Cap Value Fund (Series ID: S000068882)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000220106 | R6           | MKVHX           |
| C000220107 | R4           | MKVGX           |
| C000220108 | R3           | MKVFX           |
| C000220109 | A            | MKVBX           |
| C000220110 | R1           | MKVDX           |
| C000220111 | I            | MKVIX           |
| C000220112 | C            | MKVCX           |
| C000220113 | R2           | MKVEX           |

## Nport-Ex

MKV-Q1

![](img3dfdd9d31.gif)

**Quarterly Report**

August 31, 2025

MFS<sup>®</sup> International Large Cap Value Fund

![](imgabd7b2fc2.gif)

------

**Portfolio of Investments**

8/31/25 (unaudited)

The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

---

| | | |
|:---|:---|:---|
| **Issuer** | **Shares/Par** | **Value ($)** |
| Common Stocks – 97.3%  | Common Stocks – 97.3%  | Common Stocks – 97.3%  |
| Aerospace & Defense – 1.7% | Aerospace & Defense – 1.7% |  |
| BAE Systems PLC | 2489831 | &nbsp;&nbsp;&nbsp; $59144367 |
| Dassault Aviation S.A. | 207463 | &nbsp;&nbsp;&nbsp; 65531960 |
|  |  | &nbsp;&nbsp;&nbsp; $124676327 |
| Airlines – 1.3% | Airlines – 1.3% |  |
| Ryanair Holdings PLC, ADR  | 1479271 | &nbsp;&nbsp;&nbsp; $93889330 |
| Alcoholic Beverages – 2.3% | Alcoholic Beverages – 2.3% |  |
| Diageo PLC | 3460836 | &nbsp;&nbsp;&nbsp; $95845375 |
| Heineken N.V. | 836291 | &nbsp;&nbsp;&nbsp; 67508002 |
|  |  | &nbsp;&nbsp;&nbsp; $163353377 |
| Apparel Manufacturers – 0.7% | Apparel Manufacturers – 0.7% |  |
| Burberry Group PLC (a) | 1511532 | &nbsp;&nbsp;&nbsp; $26221734 |
| Compagnie Financiere Richemont S.A. | 123369 | &nbsp;&nbsp;&nbsp; 21546982 |
|  |  | &nbsp;&nbsp;&nbsp; $47768716 |
| Automotive – 2.5% | Automotive – 2.5% |  |
| Aptiv PLC (a) | 651769 | &nbsp;&nbsp;&nbsp; $51835188 |
| Compagnie Generale des Etablissements Michelin | 1323020 | &nbsp;&nbsp;&nbsp; 47873488 |
| DENSO Corp. | 3100200 | &nbsp;&nbsp;&nbsp; 44300320 |
| USS Co. Ltd. | 2945900 | &nbsp;&nbsp;&nbsp; 35710674 |
|  |  | &nbsp;&nbsp;&nbsp; $179719670 |
| Broadcasting – 1.1% | Broadcasting – 1.1% |  |
| Publicis Groupe  | 860415 | &nbsp;&nbsp;&nbsp; $79360305 |
| Brokerage & Asset Managers – 4.8% | Brokerage & Asset Managers – 4.8% |  |
| B3 S.A. - Brasil Bolsa Balcao | 17727400 | &nbsp;&nbsp;&nbsp; $42439693 |
| Barclays PLC | 31495497 | &nbsp;&nbsp;&nbsp; 153419807 |
| Deutsche Boerse AG | 239274 | &nbsp;&nbsp;&nbsp; 70429546 |
| IG Group Holdings PLC | 5170796 | &nbsp;&nbsp;&nbsp; 78973981 |
|  |  | &nbsp;&nbsp;&nbsp; $345263027 |
| Business Services – 1.8% | Business Services – 1.8% |  |
| RS Group PLC | 3644626 | &nbsp;&nbsp;&nbsp; $27832332 |
| Secom Co. Ltd. | 1070900 | &nbsp;&nbsp;&nbsp; 39650678 |
| Sodexo | 1081744 | &nbsp;&nbsp;&nbsp; 64921807 |
|  |  | &nbsp;&nbsp;&nbsp; $132404817 |
| Computer Software - Systems – 7.6% | Computer Software - Systems – 7.6% |  |
| Amadeus IT Group S.A. | 1184864 | &nbsp;&nbsp;&nbsp; $99249944 |
| Capgemini | 732160 | &nbsp;&nbsp;&nbsp; 104028481 |
| Fujitsu Ltd. | 1660400 | &nbsp;&nbsp;&nbsp; 40314483 |
| Hitachi Ltd. | 3556900 | &nbsp;&nbsp;&nbsp; 95827266 |
| NEC Corp. | 4033000 | &nbsp;&nbsp;&nbsp; 123983231 |
| Samsung Electronics Co. Ltd. | 1767647 | &nbsp;&nbsp;&nbsp; 88445811 |
|  |  | &nbsp;&nbsp;&nbsp; $551849216 |
| Construction – 1.8% | Construction – 1.8% |  |
| CRH PLC | 398687 | &nbsp;&nbsp;&nbsp; $45031697 |
| James Hardie Industries PLC, GDR (a) | 821374 | &nbsp;&nbsp;&nbsp; 16684033 |
| Techtronic Industries Co. Ltd. | 5554500 | &nbsp;&nbsp;&nbsp; 71165517 |
|  |  | &nbsp;&nbsp;&nbsp; $132881247 |

---

------

*Portfolio of Investments (unaudited) – continued*

---

| | | |
|:---|:---|:---|
| **Issuer** | **Shares/Par** | **Value ($)** |
| Common Stocks – continued  | Common Stocks – continued  | Common Stocks – continued  |
| Consumer Products – 1.6% | Consumer Products – 1.6% |  |
| Haleon PLC | 9449220 | &nbsp;&nbsp;&nbsp; $46348012 |
| Reckitt Benckiser Group PLC | 960145 | &nbsp;&nbsp;&nbsp; 71764579 |
|  |  | &nbsp;&nbsp;&nbsp; $118112591 |
| Electrical Equipment – 4.3% | Electrical Equipment – 4.3% |  |
| Legrand S.A. | 423112 | &nbsp;&nbsp;&nbsp; $64399335 |
| Mitsubishi Electric Corp. | 5465700 | &nbsp;&nbsp;&nbsp; 131672450 |
| Schneider Electric SE | 463363 | &nbsp;&nbsp;&nbsp; 113865663 |
|  |  | &nbsp;&nbsp;&nbsp; $309937448 |
| Electronics – 1.8% | Electronics – 1.8% |  |
| Kyocera Corp. | 4174100 | &nbsp;&nbsp;&nbsp; $56008462 |
| NXP Semiconductors N.V. | 302689 | &nbsp;&nbsp;&nbsp; 71086511 |
|  |  | &nbsp;&nbsp;&nbsp; $127094973 |
| Energy - Independent – 0.4% | Energy - Independent – 0.4% |  |
| Woodside Energy Group Ltd.  | 1816829 | &nbsp;&nbsp;&nbsp; $31318525 |
| Energy - Integrated – 6.1% | Energy - Integrated – 6.1% |  |
| Aker BP ASA | 1351047 | &nbsp;&nbsp;&nbsp; $34125121 |
| Cenovus Energy, Inc. | 1311224 | &nbsp;&nbsp;&nbsp; 21806791 |
| Eni S.p.A. | 7213185 | &nbsp;&nbsp;&nbsp; 128622744 |
| Suncor Energy, Inc. | 2268687 | &nbsp;&nbsp;&nbsp; 93780435 |
| TotalEnergies SE | 2598990 | &nbsp;&nbsp;&nbsp; 162669874 |
|  |  | &nbsp;&nbsp;&nbsp; $441004965 |
| Food & Beverages – 1.2% | Food & Beverages – 1.2% |  |
| Danone S.A.  | 1083588 | &nbsp;&nbsp;&nbsp; $90234146 |
| Food & Drug Stores – 1.6% | Food & Drug Stores – 1.6% |  |
| Tesco PLC  | 19788202 | &nbsp;&nbsp;&nbsp; $113054217 |
| General Merchandise – 0.3% | General Merchandise – 0.3% |  |
| B&M European Value Retail S.A.  | 7385467 | &nbsp;&nbsp;&nbsp; $24027149 |
| Insurance – 3.8% | Insurance – 3.8% |  |
| Manulife Financial Corp. | 2389072 | &nbsp;&nbsp;&nbsp; $73497865 |
| St. James's Place PLC | 3079420 | &nbsp;&nbsp;&nbsp; 52817608 |
| Willis Towers Watson PLC | 454929 | &nbsp;&nbsp;&nbsp; 148666248 |
|  |  | &nbsp;&nbsp;&nbsp; $274981721 |
| Interactive Media Services – 0.4% | Interactive Media Services – 0.4% |  |
| Baidu, Inc., ADR (a)  | 269883 | &nbsp;&nbsp;&nbsp; $25719850 |
| Machinery & Tools – 2.6% | Machinery & Tools – 2.6% |  |
| Aalberts Industries N.V. (l) | 631675 | &nbsp;&nbsp;&nbsp; $22110778 |
| Daikin Industries Ltd. | 326100 | &nbsp;&nbsp;&nbsp; 41072189 |
| IHI Corp. | 187700 | &nbsp;&nbsp;&nbsp; 19474785 |
| IMI PLC | 1289694 | &nbsp;&nbsp;&nbsp; 39639240 |
| Kubota Corp. | 1697400 | &nbsp;&nbsp;&nbsp; 19865949 |
| Toyota Industries Corp. | 285300 | &nbsp;&nbsp;&nbsp; 31722650 |
| Weir Group PLC | 468986 | &nbsp;&nbsp;&nbsp; 15618840 |
|  |  | &nbsp;&nbsp;&nbsp; $189504431 |
| Major Banks – 20.2% | Major Banks – 20.2% |  |
| ABN AMRO Group N.V., GDR | 2388486 | &nbsp;&nbsp;&nbsp; $68879243 |
| Bank of Ireland Group PLC | 8679617 | &nbsp;&nbsp;&nbsp; 128350149 |
| BNP Paribas S.A. | 2190505 | &nbsp;&nbsp;&nbsp; 196890074 |

---

------

*Portfolio of Investments (unaudited) – continued*

---

| | | |
|:---|:---|:---|
| **Issuer** | **Shares/Par** | **Value ($)** |
| Common Stocks – continued  | Common Stocks – continued  | Common Stocks – continued  |
| Major Banks – continued | Major Banks – continued |  |
| BPER Banca S.p.A. | 6860898 | &nbsp;&nbsp;&nbsp; $71259840 |
| Lloyds Banking Group PLC | 43603674 | &nbsp;&nbsp;&nbsp; 46864894 |
| Mitsubishi UFJ Financial Group, Inc. | 17658100 | &nbsp;&nbsp;&nbsp; 266884288 |
| National Bank of Greece S.A. | 3440032 | &nbsp;&nbsp;&nbsp; 47609757 |
| NatWest Group PLC | 38992793 | &nbsp;&nbsp;&nbsp; 269099777 |
| Resona Holdings, Inc. | 6780600 | &nbsp;&nbsp;&nbsp; 67556941 |
| Toronto-Dominion Bank | 1259750 | &nbsp;&nbsp;&nbsp; 94590177 |
| UBS Group AG | 4986279 | &nbsp;&nbsp;&nbsp; 201781809 |
|  |  | &nbsp;&nbsp;&nbsp; $1459766949 |
| Medical & Health Technology & Services – 0.9% | Medical & Health Technology & Services – 0.9% |  |
| ICON PLC (a)  | 363137 | &nbsp;&nbsp;&nbsp; $64616598 |
| Medical Equipment – 1.9% | Medical Equipment – 1.9% |  |
| ConvaTec Group PLC | 8619015 | &nbsp;&nbsp;&nbsp; $27562624 |
| Smith & Nephew PLC | 5890392 | &nbsp;&nbsp;&nbsp; 110106906 |
|  |  | &nbsp;&nbsp;&nbsp; $137669530 |
| Metals & Mining – 2.4% | Metals & Mining – 2.4% |  |
| Glencore PLC | 23229705 | &nbsp;&nbsp;&nbsp; $91742821 |
| Rio Tinto PLC | 1273997 | &nbsp;&nbsp;&nbsp; 79932192 |
|  |  | &nbsp;&nbsp;&nbsp; $171675013 |
| Other Banks & Diversified Financials – 3.9% | Other Banks & Diversified Financials – 3.9% |  |
| AIB Group PLC | 11619447 | &nbsp;&nbsp;&nbsp; $94339522 |
| CaixaBank S.A. | 4484782 | &nbsp;&nbsp;&nbsp; 44754747 |
| Edenred | 688336 | &nbsp;&nbsp;&nbsp; 19890522 |
| FinecoBank S.p.A. | 949274 | &nbsp;&nbsp;&nbsp; 20822919 |
| Julius Baer Group Ltd. | 1402040 | &nbsp;&nbsp;&nbsp; 101103178 |
|  |  | &nbsp;&nbsp;&nbsp; $280910888 |
| Pharmaceuticals – 5.0% | Pharmaceuticals – 5.0% |  |
| Novartis AG | 192712 | &nbsp;&nbsp;&nbsp; $24363864 |
| Roche Holding AG | 551755 | &nbsp;&nbsp;&nbsp; 179493628 |
| Sandoz Group AG | 588184 | &nbsp;&nbsp;&nbsp; 36872223 |
| Sanofi | 1260785 | &nbsp;&nbsp;&nbsp; 124622106 |
|  |  | &nbsp;&nbsp;&nbsp; $365351821 |
| Printing & Publishing – 1.3% | Printing & Publishing – 1.3% |  |
| Informa PLC | 5677277 | &nbsp;&nbsp;&nbsp; $66789340 |
| Springer Nature AG & Co. KGaA | 944508 | &nbsp;&nbsp;&nbsp; 24751550 |
|  |  | &nbsp;&nbsp;&nbsp; $91540890 |
| Specialty Chemicals – 1.4% | Specialty Chemicals – 1.4% |  |
| Akzo Nobel N.V. | 515229 | &nbsp;&nbsp;&nbsp; $35563218 |
| Nitto Denko Corp. | 2926800 | &nbsp;&nbsp;&nbsp; 65762464 |
|  |  | &nbsp;&nbsp;&nbsp; $101325682 |
| Specialty Stores – 0.7% | Specialty Stores – 0.7% |  |
| Alibaba Group Holding Ltd., ADR | 202457 | &nbsp;&nbsp;&nbsp; $27331695 |
| Shimamura Co. Ltd. (l) | 320000 | &nbsp;&nbsp;&nbsp; 23702494 |
|  |  | &nbsp;&nbsp;&nbsp; $51034189 |
| Telecom Services – 1.4% | Telecom Services – 1.4% |  |
| Koninklijke KPN N.V. | 15922666 | &nbsp;&nbsp;&nbsp; $75927430 |
| Quebecor, Inc., "B" | 726932 | &nbsp;&nbsp;&nbsp; 22088231 |
|  |  | &nbsp;&nbsp;&nbsp; $98015661 |

---

------

*Portfolio of Investments (unaudited) – continued*

---

| | | |
|:---|:---|:---|
| **Issuer** | **Shares/Par** | **Value ($)** |
| Common Stocks – continued  | Common Stocks – continued  | Common Stocks – continued  |
| Tobacco – 3.2% | Tobacco – 3.2% |  |
| British American Tobacco PLC | 3124776 | &nbsp;&nbsp;&nbsp; $176751267 |
| Imperial Brands PLC | 1270838 | &nbsp;&nbsp;&nbsp; 53625490 |
|  |  | &nbsp;&nbsp;&nbsp; $230376757 |
| Utilities - Electric Power – 5.3% | Utilities - Electric Power – 5.3% |  |
| E.ON SE | 7026288 | &nbsp;&nbsp;&nbsp; $125314728 |
| Iberdrola S.A. | 5789544 | &nbsp;&nbsp;&nbsp; 108878989 |
| National Grid PLC | 10469576 | &nbsp;&nbsp;&nbsp; 147308568 |
|  |  | &nbsp;&nbsp;&nbsp; $381502285 |
| **Total Common Stocks**  |  | &nbsp;&nbsp; **$7029942311** |
| Preferred Stocks – 1.6%  | Preferred Stocks – 1.6%  | Preferred Stocks – 1.6%  |
| Consumer Products – 1.6% |  |  |
| Henkel AG & Co. KGaA  | 1402630 | &nbsp;&nbsp;&nbsp; $118245908 |
| Mutual Funds (h) – 0.4%  | Mutual Funds (h) – 0.4%  | Mutual Funds (h) – 0.4%  |
| Money Market Funds – 0.4% | Money Market Funds – 0.4% |  |
| MFS Institutional Money Market Portfolio, 4.33% (v)  | 27056054 | &nbsp;&nbsp;&nbsp; $27058760 |
| Collateral for Securities Loaned – 0.0%  | Collateral for Securities Loaned – 0.0%  | Collateral for Securities Loaned – 0.0%  |
| JPMorgan U.S. Government Money Market Fund - Class IM Shares, 4.23% (j)  | 1509320 | &nbsp;&nbsp;&nbsp; $1509320 |
| Other Assets, Less Liabilities – 0.7% |  | &nbsp;&nbsp;&nbsp; 51361286 |
| **Net Assets – 100.0%** | **Net Assets – 100.0%** | &nbsp;&nbsp; **$7228117585** |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;(a) Non-income producing security.

&nbsp;&nbsp;&nbsp;&nbsp;(h) An affiliated issuer, which may be considered one in which the fund owns 5% or more
 of the outstanding voting securities, or a company which is under common control. At period end, the aggregate values of the fund's investments in affiliated
 issuers and in unaffiliated issuers were $27,058,760 and $7,149,697,539, respectively.

&nbsp;&nbsp;&nbsp;&nbsp;(j) The rate quoted is the annualized seven-day yield of the fund at period end.

&nbsp;&nbsp;&nbsp;&nbsp;(l) A portion of this security is on loan. See Note 2 for additional information.

&nbsp;&nbsp;&nbsp;&nbsp;(v) Affiliated issuer that is available only to investment companies managed by MFS. The
 rate quoted for the MFS Institutional Money Market Portfolio is the annualized seven-day yield of the fund at period end.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

The following abbreviations are used in this report and are defined: <br> ADR American Depositary Receipt <br> GDR Global Depositary Receipt

See attached supplemental information. For more information see notes to financial statements as disclosed in the most recent semiannual or annual report.

------

**Supplemental Information**

8/31/25 (unaudited)

The fund is an investment company and accordingly follows the investment company accounting and reporting guidance of the Financial

Accounting Standards Board (FASB) Accounting Standards Codification Topic 946 Financial Services - Investment Companies.

**(1) Investment Valuations**

Subject to its oversight, the fund's Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund's investments to MFS as the fund's adviser, pursuant to the fund's valuation policy and procedures which have been adopted by the adviser and approved by the Board. In accordance with Rule 2a-5 under the Investment Company Act of 1940, the Board of Trustees designated the adviser as the "valuation designee" of the fund. If the adviser, as valuation designee, determines that reliable market quotations are not readily available for an investment, the investment is valued at fair value as determined in good faith by the adviser in accordance with the adviser's fair valuation policy and procedures.

Under the fund's valuation policy and procedures, equity securities, including restricted equity securities, are generally valued at the last sale or official closing price on their primary market or exchange as provided by a third-party pricing service. Equity securities, for which there were no sales reported that day, are generally valued at the last quoted daily bid quotation on their primary market or exchange as provided

by a third-party pricing service. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which

approximates market value. Open-end investment companies are generally valued at net asset value per share. The values of foreign securities and other assets and liabilities expressed in foreign currencies are converted to U.S. dollars using the mean of bid and asked prices for rates provided by a third-party pricing service.

Under the fund's valuation policy and procedures, market quotations are not considered to be readily available for debt instruments, floating rate loans, and many types of derivatives. These investments are generally valued at fair value based on information from third-party pricing services or otherwise determined by the adviser in accordance with the adviser's fair valuation policy and procedures. Securities and other assets generally valued on the basis of information from a third-party pricing service may also be valued at a broker/dealer bid quotation. In determining values, third-party pricing services can utilize both transaction data and market information such as yield, quality, coupon rate, maturity, type of issue, trading characteristics, spreads and other market data. An investment may also be valued at fair value if the adviser determines that the investment's value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund's net asset value, or after the halt of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. Events that occur after foreign markets close (such as developments in foreign markets and significant movements in the U.S. markets) and prior to the determination of the fund's net asset value may be deemed to have a material effect on the value of securities traded in foreign markets. Accordingly, the fund's foreign equity securities may often be valued at fair value. The adviser generally relies on third-party pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund's net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of an investment used to determine the fund's net asset value may differ from quoted or published prices for the same investment. There can be no assurance that the fund could obtain the fair value assigned to an investment if it were to

sell the investment at the same time at which the fund determines its net asset value per share.

Various inputs are used in determining the value of the fund's assets or liabilities. These inputs are categorized into three broad levels. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment's level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The fund's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Level 1 includes unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 includes other

------

*Supplemental Information (unaudited) – continued*

significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3 includes significant unobservable inputs, which may include the adviser's own assumptions in determining the fair value of investments. The following is a summary of the levels used as of August 31, 2025 in valuing the fund's assets and liabilities:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Financial Instruments** | **Level 1** | **Level 2** | **Level 3** | **Total** |
| Equity Securities: |  |  |  |  |
| &nbsp;&nbsp;&nbsp; United Kingdom | &nbsp;&nbsp;&nbsp; $1874491120 | &nbsp;&nbsp;&nbsp; $— | &nbsp;&nbsp;&nbsp; $— | &nbsp;&nbsp;&nbsp; $1874491120 |
| &nbsp;&nbsp;&nbsp; France | &nbsp;&nbsp;&nbsp; 1134287761 | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 1134287761 |
| &nbsp;&nbsp;&nbsp; Japan | &nbsp;&nbsp;&nbsp; 55425144 | &nbsp;&nbsp;&nbsp; 1048084180 | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 1103509324 |
| &nbsp;&nbsp;&nbsp; Switzerland | &nbsp;&nbsp;&nbsp; 565161684 | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 565161684 |
| &nbsp;&nbsp;&nbsp; United States | &nbsp;&nbsp;&nbsp; 381236242 | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 381236242 |
| &nbsp;&nbsp;&nbsp; Germany | &nbsp;&nbsp;&nbsp; 338741732 | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 338741732 |
| &nbsp;&nbsp;&nbsp; Ireland | &nbsp;&nbsp;&nbsp; 316579001 | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 316579001 |
| &nbsp;&nbsp;&nbsp; Canada | &nbsp;&nbsp;&nbsp; 305763499 | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 305763499 |
| &nbsp;&nbsp;&nbsp; Netherlands | &nbsp;&nbsp;&nbsp; 269988671 | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 269988671 |
| &nbsp;&nbsp;&nbsp; Other Countries | &nbsp;&nbsp;&nbsp; 650815299 | &nbsp;&nbsp;&nbsp; 207613886 | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 858429185 |
| Investment Companies | &nbsp;&nbsp;&nbsp; 28568080 | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 28568080 |
| Total | &nbsp;&nbsp;&nbsp; $5921058233 | &nbsp;&nbsp;&nbsp; $1255698066 | &nbsp;&nbsp;&nbsp; $— | &nbsp;&nbsp;&nbsp; $7176756299 |

---

For further information regarding security characteristics, see the Portfolio of Investments.

**(2) Securities Lending Collateral**

At August 31, 2025, the value of securities loaned was $28,522,892. These loans were collateralized by cash of $1,509,320 and

U.S. Treasury Obligations (held by the custodian or a triparty custodian) of $28,613,534.

**(3) Investments in Affiliated Issuers**

An affiliated issuer may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. For the purposes of this report, the following were affiliated issuers for the period ended August 31, 2025:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Affiliated Issuers** | **Beginning** <br>**Value**<br>| **Purchases** | **Sales** <br>**Proceeds**<br>| **Realized** <br>**Gain** <br>**(Loss)**<br>| **Change in** <br>**Unrealized** <br>**Appreciation or** <br>**Depreciation**<br>| **Ending** <br>**Value**<br>|
| MFS Institutional Money Market Portfolio  | &nbsp;&nbsp; $98523082 | &nbsp;&nbsp; $225999381 | &nbsp;&nbsp; $297470547 | &nbsp;&nbsp; $4711 | &nbsp;&nbsp; $2133 | &nbsp;&nbsp; $27058760<br>|

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

---

| | | |
|:---|:---|:---|
| **Affiliated Issuers** | **Dividend** <br>**Income**<br>| **Capital Gain** <br>**Distributions**<br>|
| MFS Institutional Money Market Portfolio  | &nbsp;&nbsp; $923520 | &nbsp;&nbsp; $— |

---

**(4) Issuer Country Weightings**

Issuer country weighting percentages of portfolio holdings based on net assets, as of August 31, 2025, are as follows:

---

| | |
|:---|:---|
| United Kingdom | 26.0% |
| France | 15.7% |
| Japan | 15.3% |
| Switzerland | 7.8% |
| United States | 6.2% |
| Germany | 4.7% |
| Ireland | 4.4% |
| Canada | 4.2% |
| Netherlands | 3.7% |
| Other Countries | 12.0% |

---

------

## 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 X

- **b. Investment Company Act file number:** 811-04492

- **c. CIK number of Registrant:** 0000783740

- **d. LEI of Registrant:** 5493001MUVNRNUPJY164

- **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 International Large Cap Value Fund

- **b. EDGAR series identifier (if any):** S000068882

- **c. LEI of Series:** 549300YEW2NKJCMQAR75

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

- **a. Date of fiscal year-end:** 2026-05-31

- **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:** $7251934096.07

**Total Liabilities:** $23815202.62

**Net Assets:** $7228118893.45

**Cash Not Reported:** $244.21

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000220106 | 2.74%                | -0.56%               | 4.24%                |
| Class ID C000220107 | 2.80%                | -0.56%               | 4.17%                |
| Class ID C000220112 | 2.64%                | -0.63%               | 4.10%                |
| Class ID C000220113 | 2.68%                | -0.56%               | 4.13%                |
| Class ID C000220109 | 2.75%                | -0.56%               | 4.20%                |
| Class ID C000220110 | 2.70%                | -0.63%               | 4.09%                |
| Class ID C000220111 | 2.80%                | -0.56%               | 4.17%                |
| Class ID C000220108 | 2.68%                | -0.56%               | 4.19%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $42233823.87             | $142733097.85                              |
| Month 2  | $39489070.27             | $-86110300.05                              |
| Month 3  | $26505832.44             | $255894229.21                              |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| CRH plc                                      | CRH plc                                                    | CUSIP: N/A<br>LEI: 549300MIDJNNTH068E74       | Long             | EC               | CORP              | IE        |    398687 | NS      | $45031696.65  | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| National Bank of Greece SA                   | National Bank of Greece SA                                 | CUSIP: N/A<br>LEI: 5UMCZOEYKCVFAW8ZLO05       | Long             | EC               | CORP              | GR        |   3440032 | NS      | $47609757.37  | 0.66%             |  |  |  | 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        |  26846121 | NS      | $26848805.74  | 0.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Toronto-Dominion Bank (The)                  | Toronto-Dominion Bank (The)                                | CUSIP: 891160509<br>LEI: PT3QB789TSUIDF371261 | Long             | EC               | CORP              | CA        |   1259750 | NS      | $94590177.30  | 1.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Weir Group plc (The)                         | Weir Group plc (The)                                       | CUSIP: N/A<br>LEI: 549300KDR56WHY9I3D10       | Long             | EC               | CORP              | GB        |    468986 | NS      | $15618839.61  | 0.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Informa plc                                  | Informa plc                                                | CUSIP: N/A<br>LEI: 5493006VM2LKUPSEDU20       | Long             | EC               | CORP              | GB        |   5677277 | NS      | $66789339.70  | 0.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Amadeus IT Group SA                          | Amadeus IT Group SA                                        | CUSIP: N/A<br>LEI: 9598004A3FTY3TEHHN09       | Long             | EC               | CORP              | ES        |   1184864 | NS      | $99249943.42  | 1.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Julius Baer Group Ltd.                       | Julius Baer Group Ltd.                                     | CUSIP: N/A<br>LEI: 5299007MF0604ZGJER92       | Long             | EC               | CORP              | CH        |   1402040 | NS      | $101103178.15 | 1.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Danone SA                                    | Danone SA                                                  | CUSIP: N/A<br>LEI: 969500KMUQ2B6CBAF162       | Long             | EC               | CORP              | FR        |   1083588 | NS      | $90234145.85  | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Sanofi SA                                    | Sanofi SA                                                  | CUSIP: N/A<br>LEI: 549300E9PC51EN656011       | Long             | EC               | CORP              | FR        |   1260785 | NS      | $124622105.51 | 1.72%             |  |  |  | No            |                  1 | On Loan: No      |
| British American Tobacco plc                 | British American Tobacco plc                               | CUSIP: N/A<br>LEI: 213800FKA5MF17RJKT63       | Long             | EC               | CORP              | GB        |   3124776 | NS      | $176751267.07 | 2.45%             |  |  |  | No            |                  1 | On Loan: No      |
| ICON plc                                     | ICON plc                                                   | CUSIP: N/A<br>LEI: 6354008SRQGEMC4XFI67       | Long             | EC               | CORP              | IE        |    363137 | NS      | $64616597.78  | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Deutsche Boerse AG                           | Deutsche Boerse AG                                         | CUSIP: N/A<br>LEI: 529900G3SW56SHYNPR95       | Long             | EC               | CORP              | DE        |    239274 | NS      | $70429545.82  | 0.97%             |  |  |  | No            |                  1 | On Loan: No      |
| Nitto Denko Corp.                            | Nitto Denko Corp.                                          | CUSIP: N/A<br>LEI: 3538009GX5P09USH2J25       | Long             | EC               | CORP              | JP        |   2926800 | NS      | $65762463.56  | 0.91%             |  |  |  | No            |                  2 | On Loan: No      |
| Barclays plc                                 | Barclays plc                                               | CUSIP: N/A<br>LEI: 213800LBQA1Y9L22JB70       | Long             | EC               | CORP              | GB        |  31495497 | NS      | $153419806.75 | 2.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Lloyds Banking Group plc                     | Lloyds Banking Group plc                                   | CUSIP: N/A<br>LEI: 549300PPXHEU2JF0AM85       | Long             | EC               | CORP              | GB        |  43603674 | NS      | $46864893.94  | 0.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Bank of Ireland Group plc                    | Bank of Ireland Group plc                                  | CUSIP: N/A<br>LEI: 635400C8EK6DRI12LJ39       | Long             | EC               | CORP              | IE        |   8679617 | NS      | $128350148.90 | 1.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Akzo Nobel NV                                | Akzo Nobel NV                                              | CUSIP: N/A<br>LEI: 724500XYIJUGXAA5QD70       | Long             | EC               | CORP              | NL        |    515229 | NS      | $35563218.03  | 0.49%             |  |  |  | No            |                  1 | On Loan: No      |
| BNP Paribas SA                               | BNP Paribas SA                                             | CUSIP: N/A<br>LEI: R0MUWSFPU8MPRO8K5P83       | Long             | EC               | CORP              | FR        |   2190505 | NS      | $196890074.42 | 2.72%             |  |  |  | No            |                  1 | On Loan: No      |
| UBS Group AG                                 | UBS Group AG (Registered)                                  | CUSIP: N/A<br>LEI: 549300SZJ9VS8SGXAN81       | Long             | EC               | CORP              | CH        |   4986279 | NS      | $201781808.44 | 2.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Eni SpA                                      | Eni SpA                                                    | CUSIP: N/A<br>LEI: BUCRF72VH5RBN7X3VL35       | Long             | EC               | CORP              | IT        |   7213185 | NS      | $128622743.66 | 1.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Publicis Groupe SA                           | Publicis Groupe SA                                         | CUSIP: N/A<br>LEI: 2138004KW8BV57III342       | Long             | EC               | CORP              | FR        |    860415 | NS      | $79360305.28  | 1.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Glencore plc                                 | Glencore plc                                               | CUSIP: N/A<br>LEI: 2138002658CPO9NBH955       | Long             | EC               | CORP              | JE        |  23229705 | NS      | $91742820.84  | 1.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Koninklijke KPN NV                           | Koninklijke KPN NV                                         | CUSIP: N/A<br>LEI: 549300YO0JZHAL7FVP81       | Long             | EC               | CORP              | NL        |  15922666 | NS      | $75927430.29  | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| St James's Place plc                         | St James's Place plc                                       | CUSIP: N/A<br>LEI: 213800M993ICXOMBCP87       | Long             | EC               | CORP              | GB        |   3079420 | NS      | $52817608.28  | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Schneider Electric SE                        | Schneider Electric SE                                      | CUSIP: N/A<br>LEI: 969500A1YF1XUYYXS284       | Long             | EC               | CORP              | FR        |    463363 | NS      | $113865662.94 | 1.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Baidu, Inc.                                  | Baidu, Inc.                                                | CUSIP: 056752108<br>LEI: 254900AL64IANZYI1E02 | Long             | EC               | CORP              | KY        |    269883 | NS      | $25719849.90  | 0.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Resona Holdings, Inc.                        | Resona Holdings, Inc.                                      | CUSIP: N/A<br>LEI: 52990067JE75XZCYYT81       | Long             | EC               | CORP              | JP        |   6780600 | NS      | $67556940.59  | 0.93%             |  |  |  | No            |                  2 | On Loan: No      |
| Hitachi Ltd.                                 | Hitachi Ltd.                                               | CUSIP: N/A<br>LEI: 549300T6IPOCDWLKC615       | Long             | EC               | CORP              | JP        |   3556900 | NS      | $95827265.50  | 1.33%             |  |  |  | No            |                  2 | On Loan: No      |
| Imperial Brands plc                          | Imperial Brands plc                                        | CUSIP: N/A<br>LEI: 549300DFVPOB67JL3A42       | Long             | EC               | CORP              | GB        |   1270838 | NS      | $53625490.09  | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| RS GROUP plc                                 | RS GROUP plc                                               | CUSIP: N/A<br>LEI: 549300KVXDURRKVW7R37       | Long             | EC               | CORP              | GB        |   3644626 | NS      | $27832332.24  | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Tesco plc                                    | Tesco plc                                                  | CUSIP: N/A<br>LEI: 2138002P5RNKC5W2JZ46       | Long             | EC               | CORP              | GB        |  19788202 | NS      | $113054216.87 | 1.56%             |  |  |  | No            |                  1 | On Loan: No      |
| Iberdrola SA                                 | Iberdrola SA                                               | CUSIP: N/A<br>LEI: 5QK37QC7NWOJ8D7WVQ45       | Long             | EC               | CORP              | ES        |   5789544 | NS      | $108878989.51 | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Cie Financiere Richemont SA                  | Cie Financiere Richemont SA (Registered)                   | CUSIP: N/A<br>LEI: 549300YIPGJ6UX2QPS51       | Long             | EC               | CORP              | CH        |    123369 | NS      | $21546982.13  | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Kyocera Corp.                                | Kyocera Corp.                                              | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | CORP              | JP        |   4174100 | NS      | $56008461.69  | 0.77%             |  |  |  | No            |                  2 | 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        |   1509320 | NS      | $1509320.00   | 0.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Cenovus Energy, Inc.                         | Cenovus Energy, Inc.                                       | CUSIP: 15135U109<br>LEI: 549300F4XPHJ7NOSP309 | Long             | EC               | CORP              | CA        |   1311224 | NS      | $21806790.81  | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Legrand SA                                   | Legrand SA                                                 | CUSIP: N/A<br>LEI: 969500XXRPGD7HCAFA90       | Long             | EC               | CORP              | FR        |    423112 | NS      | $64399334.64  | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Sodexo SA                                    | Sodexo SA                                                  | CUSIP: N/A<br>LEI: 969500LCBOG12HXPYM84       | Long             | EC               | CORP              | FR        |   1081744 | NS      | $64921807.30  | 0.90%             |  |  |  | No            |                  1 | On Loan: No      |
| BAE Systems plc                              | BAE Systems plc                                            | CUSIP: N/A<br>LEI: 8SVCSVKSGDWMW2QHOH83       | Long             | EC               | CORP              | GB        |   2489831 | NS      | $59144366.82  | 0.82%             |  |  |  | No            |                  1 | On Loan: No      |
| IG Group Holdings plc                        | IG Group Holdings plc                                      | CUSIP: N/A<br>LEI: 2138003A5Q1M7ANOUD76       | Long             | EC               | CORP              | GB        |   5170796 | NS      | $78973980.98  | 1.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Burberry Group plc                           | Burberry Group plc                                         | CUSIP: N/A<br>LEI: 213800PE1KEFCNFR1R50       | Long             | EC               | CORP              | GB        |   1511532 | NS      | $26221733.67  | 0.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Willis Towers Watson plc                     | Willis Towers Watson plc                                   | CUSIP: N/A<br>LEI: 549300WHC56FF48KL350       | Long             | EC               | CORP              | IE        |    454929 | NS      | $148666247.91 | 2.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Quebecor, Inc.                               | Quebecor, Inc., Class B                                    | CUSIP: 748193208<br>LEI: N/A                  | Long             | EC               | CORP              | CA        |    726932 | NS      | $22088231.23  | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Kubota Corp.                                 | Kubota Corp.                                               | CUSIP: N/A<br>LEI: 549300CSY4INHEHQQT13       | Long             | EC               | CORP              | JP        |   1697400 | NS      | $19865949.05  | 0.27%             |  |  |  | No            |                  2 | On Loan: No      |
| BPER Banca SpA                               | BPER Banca SpA                                             | CUSIP: N/A<br>LEI: N747OI7JINV7RUUH6190       | Long             | EC               | CORP              | IT        |   6860898 | NS      | $71259840.27  | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| Reckitt Benckiser Group plc                  | Reckitt Benckiser Group plc                                | CUSIP: N/A<br>LEI: 5493003JFSMOJG48V108       | Long             | EC               | CORP              | GB        |    960145 | NS      | $71764578.61  | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| Woodside Energy Group Ltd.                   | Woodside Energy Group Ltd.                                 | CUSIP: N/A<br>LEI: 2549005ZC5RXAOO7FH41       | Long             | EC               | CORP              | AU        |   1816829 | NS      | $31318525.02  | 0.43%             |  |  |  | No            |                  2 | On Loan: No      |
| Shimamura Co. Ltd.                           | Shimamura Co. Ltd.                                         | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | CORP              | JP        |    320000 | NS      | $23702493.96  | 0.33%             |  |  |  | No            |                  1 | On Loan: —       |
| James Hardie Industries plc                  | James Hardie Industries plc                                | CUSIP: N/A<br>LEI: 635400NSGXKTVOO7JU45       | Long             | EC               | CORP              | IE        |    821374 | NS      | $16684033.37  | 0.23%             |  |  |  | No            |                  2 | On Loan: No      |
| Diageo plc                                   | Diageo plc                                                 | CUSIP: N/A<br>LEI: 213800ZVIELEA55JMJ32       | Long             | EC               | CORP              | GB        |   3460836 | NS      | $95845375.07  | 1.33%             |  |  |  | No            |                  1 | On Loan: No      |
| NEC Corp.                                    | NEC Corp.                                                  | CUSIP: N/A<br>LEI: 5493000QYMPFRTEY4K28       | Long             | EC               | CORP              | JP        |   4033000 | NS      | $123983230.83 | 1.72%             |  |  |  | No            |                  2 | On Loan: No      |
| Mitsubishi UFJ Financial Group, Inc.         | Mitsubishi UFJ Financial Group, Inc.                       | CUSIP: N/A<br>LEI: 353800V2V8PUY9TK3E06       | Long             | EC               | CORP              | JP        |  17658100 | NS      | $266884287.65 | 3.69%             |  |  |  | No            |                  2 | On Loan: No      |
| Haleon plc                                   | Haleon plc                                                 | CUSIP: N/A<br>LEI: 549300PSB3WWEODCUP19       | Long             | EC               | CORP              | GB        |   9449220 | NS      | $46348012.12  | 0.64%             |  |  |  | No            |                  1 | On Loan: No      |
| National Grid plc                            | National Grid plc                                          | CUSIP: N/A<br>LEI: 8R95QZMKZLJX5Q2XR704       | Long             | EC               | CORP              | GB        |  10469576 | NS      | $147308567.58 | 2.04%             |  |  |  | No            |                  1 | On Loan: No      |
| Roche Holding AG                             | Roche Holding AG                                           | CUSIP: N/A<br>LEI: 549300U41AUUVOAAOB37       | Long             | EC               | CORP              | CH        |    551755 | NS      | $179493628.07 | 2.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Alibaba Group Holding Ltd.                   | Alibaba Group Holding Ltd.                                 | CUSIP: 01609W102<br>LEI: 5493001NTNQJDH60PM02 | Long             | EC               | CORP              | KY        |    202457 | NS      | $27331695.00  | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Edenred SE                                   | Edenred SE                                                 | CUSIP: N/A<br>LEI: 9695006LOD5B2D7Y0N70       | Long             | EC               | CORP              | FR        |    688336 | NS      | $19890521.88  | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Denso Corp.                                  | Denso Corp.                                                | CUSIP: N/A<br>LEI: 549300RYPA10CQM3QK38       | Long             | EC               | CORP              | JP        |   3100200 | NS      | $44300319.62  | 0.61%             |  |  |  | No            |                  2 | On Loan: No      |
| Aker BP ASA                                  | Aker BP ASA                                                | CUSIP: N/A<br>LEI: 549300NFTY73920OYK69       | Long             | EC               | CORP              | NO        |   1351047 | NS      | $34125120.82  | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Springer Nature AG & Co. KGaA                | Springer Nature AG & Co. KGaA                              | CUSIP: N/A<br>LEI: 549300UMNC43HQB3JA96       | Long             | EC               | CORP              | DE        |    944508 | NS      | $24751549.97  | 0.34%             |  |  |  | No            |                  1 | On Loan: No      |
| E.ON SE                                      | E.ON SE                                                    | CUSIP: N/A<br>LEI: Q9MAIUP40P25UFBFG033       | Long             | EC               | CORP              | DE        |   7026288 | NS      | $125314728.32 | 1.73%             |  |  |  | No            |                  1 | On Loan: No      |
| AIB Group plc                                | AIB Group plc                                              | CUSIP: N/A<br>LEI: 635400AKJBGNS5WNQL34       | Long             | EC               | CORP              | IE        |  11619447 | NS      | $94339521.89  | 1.31%             |  |  |  | No            |                  1 | On Loan: No      |
| ABN AMRO Bank NV                             | ABN AMRO Bank NV                                           | CUSIP: N/A<br>LEI: BFXS5XCH7N0Y05NIXW11       | Long             | EC               | CORP              | NL        |   2388486 | NS      | $68879242.89  | 0.95%             |  |  |  | No            |                  1 | On Loan: No      |
| USS Co. Ltd.                                 | USS Co. Ltd.                                               | CUSIP: N/A<br>LEI: 5299000RRQD6UZXG4W72       | Long             | EC               | CORP              | JP        |   2945900 | NS      | $35710673.70  | 0.49%             |  |  |  | No            |                  2 | On Loan: No      |
| Convatec Group plc                           | Convatec Group plc                                         | CUSIP: N/A<br>LEI: 213800LS272L4FIDOH92       | Long             | EC               | CORP              | GB        |   8619015 | NS      | $27562623.96  | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Manulife Financial Corp.                     | Manulife Financial Corp.                                   | CUSIP: 56501R106<br>LEI: 5493007GBX87QOZACS27 | Long             | EC               | CORP              | CA        |   2389072 | NS      | $73497864.35  | 1.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Aalberts NV                                  | Aalberts NV                                                | CUSIP: N/A<br>LEI: 549300EMP9DT6Q35HZ31       | Long             | EC               | CORP              | NL        |    631675 | NS      | $22110777.76  | 0.31%             |  |  |  | No            |                  1 | On Loan: —       |
| Secom Co. Ltd.                               | Secom Co. Ltd.                                             | CUSIP: N/A<br>LEI: 529900TYCL9N3E9PGE47       | Long             | EC               | CORP              | JP        |   1070900 | NS      | $39650677.79  | 0.55%             |  |  |  | No            |                  2 | On Loan: No      |
| Cie Generale des Etablissements Michelin SCA | Cie Generale des Etablissements Michelin SCA               | CUSIP: N/A<br>LEI: 549300SOSI58J6VIW052       | Long             | EC               | CORP              | FR        |   1323020 | NS      | $47873487.98  | 0.66%             |  |  |  | No            |                  1 | On Loan: No      |
| Sandoz Group AG                              | Sandoz Group AG                                            | CUSIP: N/A<br>LEI: 5493000JWK6XWFEUD320       | Long             | EC               | CORP              | CH        |    588184 | NS      | $36872223.26  | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Rio Tinto plc                                | Rio Tinto plc                                              | CUSIP: N/A<br>LEI: 213800YOEO5OQ72G2R82       | Long             | EC               | CORP              | GB        |   1273997 | NS      | $79932192.31  | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Techtronic Industries Co. Ltd.               | Techtronic Industries Co. Ltd.                             | CUSIP: N/A<br>LEI: 549300HZW2SBE758OK89       | Long             | EC               | CORP              | HK        |   5554500 | NS      | $71165517.31  | 0.98%             |  |  |  | No            |                  2 | On Loan: No      |
| TotalEnergies SE                             | TotalEnergies SE                                           | CUSIP: N/A<br>LEI: 529900S21EQ1BO4ESM68       | Long             | EC               | CORP              | FR        |   2598990 | NS      | $162669874.51 | 2.25%             |  |  |  | No            |                  1 | On Loan: No      |
| IHI Corp.                                    | IHI Corp.                                                  | CUSIP: N/A<br>LEI: 549300ETQIESIUQ2OE26       | Long             | EC               | CORP              | JP        |    187700 | NS      | $19474785.21  | 0.27%             |  |  |  | No            |                  2 | On Loan: No      |
| Dassault Aviation SA                         | Dassault Aviation SA                                       | CUSIP: N/A<br>LEI: 969500CVFTUT88V8QN95       | Long             | EC               | CORP              | FR        |    207463 | NS      | $65531960.22  | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Smith & Nephew plc                           | Smith & Nephew plc                                         | CUSIP: N/A<br>LEI: 213800ZTMDN8S67S1H61       | Long             | EC               | CORP              | GB        |   5890392 | NS      | $110106906.44 | 1.52%             |  |  |  | No            |                  1 | On Loan: No      |
| NXP Semiconductors NV                        | NXP Semiconductors NV                                      | CUSIP: N/A<br>LEI: 724500M9BY5293JDF951       | Long             | EC               | CORP              | NL        |    302689 | NS      | $71086511.65  | 0.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Daikin Industries Ltd.                       | Daikin Industries Ltd.                                     | CUSIP: N/A<br>LEI: 549300Y7FWSTSHMW5Y57       | Long             | EC               | CORP              | JP        |    326100 | NS      | $41072188.82  | 0.57%             |  |  |  | No            |                  2 | On Loan: No      |
| Ryanair Holdings plc                         | Ryanair Holdings plc                                       | CUSIP: 783513203<br>LEI: 635400BR2ROC1FVEBQ56 | Long             | EC               | CORP              | IE        |   1479271 | NS      | $93889330.37  | 1.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Heineken NV                                  | Heineken NV                                                | CUSIP: N/A<br>LEI: 724500K5PTPSST86UQ23       | Long             | EC               | CORP              | NL        |    836291 | NS      | $67508002.05  | 0.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Fujitsu Ltd.                                 | Fujitsu Ltd.                                               | CUSIP: N/A<br>LEI: 3538000246DHJLRTUZ24       | Long             | EC               | CORP              | JP        |   1660400 | NS      | $40314483.26  | 0.56%             |  |  |  | No            |                  2 | On Loan: No      |
| CaixaBank SA                                 | CaixaBank SA                                               | CUSIP: N/A<br>LEI: 7CUNS533WID6K7DGFI87       | Long             | EC               | CORP              | ES        |   4484782 | NS      | $44754747.33  | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Novartis AG                                  | Novartis AG (Registered)                                   | CUSIP: N/A<br>LEI: 5493007HIVTX6SY6XD66       | Long             | EC               | CORP              | CH        |    192712 | NS      | $24363864.18  | 0.34%             |  |  |  | No            |                  1 | On Loan: No      |
| B3 SA - Brasil Bolsa Balcao                  | B3 SA - Brasil Bolsa Balcao                                | CUSIP: N/A<br>LEI: 4GTK5S46E6H318LMDS44       | Long             | EC               | CORP              | BR        |  17727400 | NS      | $42439693.46  | 0.59%             |  |  |  | No            |                  1 | On Loan: No      |
| Aptiv plc                                    | Aptiv plc                                                  | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | CORP              | JE        |    651769 | NS      | $51835188.57  | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| FinecoBank Banca Fineco SpA                  | FinecoBank Banca Fineco SpA                                | CUSIP: N/A<br>LEI: 549300L7YCATGO57ZE10       | Long             | EC               | CORP              | IT        |    949274 | NS      | $20822918.49  | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Capgemini SE                                 | Capgemini SE                                               | CUSIP: N/A<br>LEI: 96950077L0TN7BAROX36       | Long             | EC               | CORP              | FR        |    732160 | NS      | $104028481.39 | 1.44%             |  |  |  | No            |                  1 | On Loan: No      |
| B&M European Value Retail SA                 | B&M European Value Retail SA                               | CUSIP: N/A<br>LEI: 213800UK7ZRLY2K1X530       | Long             | EC               | CORP              | LU        |   7385467 | NS      | $24027148.66  | 0.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Suncor Energy, Inc.                          | Suncor Energy, Inc.                                        | CUSIP: 867224107<br>LEI: 549300W70ZOQDVLCHY06 | Long             | EC               | CORP              | CA        |   2268687 | NS      | $93780435.42  | 1.30%             |  |  |  | No            |                  1 | On Loan: No      |
| NatWest Group plc                            | NatWest Group plc                                          | CUSIP: N/A<br>LEI: 2138005O9XJIJN4JPN90       | Long             | EC               | CORP              | GB        |  39603361 | NS      | $273313471.35 | 3.78%             |  |  |  | No            |                  1 | On Loan: No      |
| IMI plc                                      | IMI plc                                                    | CUSIP: N/A<br>LEI: 2138002W9Q21PF751R30       | Long             | EC               | CORP              | GB        |   1289694 | NS      | $39639240.34  | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Mitsubishi Electric Corp.                    | Mitsubishi Electric Corp.                                  | CUSIP: N/A<br>LEI: 549300TRXM9Y6561AX39       | Long             | EC               | CORP              | JP        |   5465700 | NS      | $131672450.23 | 1.82%             |  |  |  | No            |                  2 | On Loan: No      |
| Samsung Electronics Co. Ltd.                 | Samsung Electronics Co. Ltd.                               | CUSIP: N/A<br>LEI: 9884007ER46L6N7EI764       | Long             | EC               | CORP              | KR        |   1767647 | NS      | $88445811.36  | 1.22%             |  |  |  | No            |                  2 | On Loan: No      |
| Henkel AG & Co. KGaA                         | Henkel AG & Co. KGaA (Preference)                          | CUSIP: N/A<br>LEI: 549300VZCL1HTH4O4Y49       | Long             | EC               | CORP              | DE        |   1402630 | NS      | $118245908.52 | 1.64%             |  |  |  | No            |                  1 | On Loan: No      |
| Toyota Industries Corp.                      | Toyota Industries Corp.                                    | CUSIP: N/A<br>LEI: 35380000WKGEAHEMW830       | Long             | EC               | CORP              | JP        |    285300 | NS      | $31722649.79  | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

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

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

**Signature:** James Byrne

**Name of Signer:** James Byrne

**Title:** Assistant Treasurer