# EDGAR Filing Document

**Accession Number:** 0000783740
**File Stem:** 0001752724-23-009167
**Filing Date:** 2023-1
**Character Count:** 11419
**Document Hash:** 3c01ff8efd3fbb96642caf2f4e944730
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-23-009167.hdr.sgml**: 20230124

**ACCESSION NUMBER**: 0001752724-23-009167

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20221130

**FILED AS OF DATE**: 20230124

**DATE AS OF CHANGE**: 20230124

**PERIOD START**: 20230531

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MFS SERIES TRUST X
- **CENTRAL INDEX KEY:** 0000783740
- **IRS NUMBER:** 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:** 23546020

**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 Managed Wealth Fund (Series ID: S000045806)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000142775 | A            | MNWAX           |
| C000142776 | B            | MNWBX           |
| C000142777 | C            | MNWCX           |
| C000142778 | I            | MNWIX           |
| C000142779 | R1           | MNWRX           |
| C000142780 | R2           | MNWSX           |
| C000142781 | R3           | MNWTX           |
| C000142782 | R4           | MNWUX           |
| C000195688 | R6           | MNWZX           |

## 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 Managed Wealth Fund

- **b. EDGAR series identifier (if any):** S000045806

- **c. LEI of Series:** 5493001FM265HSCY4362

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

- **a. Date of fiscal year-end:** 2023-05-31

- **b. Date as of which information is reported:** 2022-11-30

**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:** $92332767.42

**Total Liabilities:** $758703.33

**Net Assets:** $91574064.09

**Cash Not Reported:** $804704.96

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000142779 | -1.12%               | 0.57%                | 2.17%                |
| Class ID C000142777 | -1.13%               | 0.67%                | 2.08%                |
| Class ID C000142776 | -1.12%               | 0.57%                | 2.07%                |
| Class ID C000142780 | -1.09%               | 0.64%                | 2.09%                |
| Class ID C000142778 | -1.07%               | 0.72%                | 2.15%                |
| Class ID C000142775 | -1.08%               | 0.73%                | 2.16%                |
| Class ID C000142782 | -1.07%               | 0.72%                | 2.15%                |
| Class ID C000195688 | -0.98%               | 0.63%                | 2.24%                |
| Class ID C000142781 | -1.08%               | 0.63%                | 2.16%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-9316.60                | $-7031112.61                               |
| Month 2  | $-145818.45              | $5516168.02                                |
| Month 3  | $722821.04               | $6207063.04                                |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Chicago Mercantile Exchange                           | E-MINI RUSS 1000 GDEC22                               | CUSIP: 000000000<br>LEI: SNZ2OJLFK8MNNCLQOF39 | N/A              | DE               |  | US        |      -188 | NC      | $384629.44    | 0.42%             |  |  |  | No            |                  1 | On Loan: No      |
| United States Treasury                                | United States Treasury Note/Bond                      | CUSIP: 912828S35<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   1000000 | PA      | $980976.56    | 1.07%             | 2023-06-30      | Fixed         | 1.38%                 | No            |                  2 | On Loan: No      |
| United States Treasury                                | United States Treasury Note/Bond                      | CUSIP: 91282CDR9<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   1000000 | PA      | $958476.56    | 1.05%             | 2023-12-31      | Fixed         | 0.75%                 | No            |                  2 | On Loan: No      |
| Exchange traded                                       | S+P 500 INDEX                                         | CUSIP: 000000000<br>LEI: N/A                  | N/A              | DE               |  | US        |        10 | NC      | $33100.00     | 0.04%             |  |  |  | No            |                  1 | On Loan: No      |
| MFS Growth Fund                                       | MFS Growth Fund                                       | CUSIP: 552985673<br>LEI: K4ZYIH3WSXKUSPKIPM59 | Long             | EC               | RF                | US        |    196101 | NS      | $28175748.72  | 30.77%            |  |  |  | No            |                  1 | On Loan: No      |
| Exchange traded                                       | S+P 500 INDEX                                         | CUSIP: 000000000<br>LEI: N/A                  | N/A              | DE               |  | US        |        10 | NC      | $1510.00      | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| MFS Institutional Trust-MFS International Equity Fund | MFS Institutional Trust-MFS International Equity Fund | CUSIP: 552966806<br>LEI: DMEBH0UWWHA1KO5Z5N87 | Long             | EC               | RF                | US        |    967538 | NS      | $28242429.11  | 30.84%            |  |  |  | No            |                  1 | On Loan: No      |
| United States Treasury                                | United States Treasury Note/Bond                      | CUSIP: 912828ZD5<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   1000000 | PA      | $988621.73    | 1.08%             | 2023-03-15      | Fixed         | 0.50%                 | No            |                  2 | On Loan: No      |
| United States Treasury                                | United States Treasury Note/Bond                      | CUSIP: 91282CEG2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   1000000 | PA      | $969609.38    | 1.06%             | 2024-03-31      | Fixed         | 2.25%                 | No            |                  2 | On Loan: No      |
| MFS Institutional Money Market Portfolio              | MFS Institutional Money Market Portfolio              | CUSIP: 55291X109<br>LEI: 5L2W638H85N8T1136O07 | Long             | STIV             | RF                | US        |   2700500 | NS      | $2700499.69   | 2.95%             |  |  |  | No            |                  1 | On Loan: No      |
| United States Treasury                                | United States Treasury Note/Bond                      | CUSIP: 912828YW4<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   1000000 | PA      | $999277.56    | 1.09%             | 2022-12-15      | Fixed         | 1.63%                 | No            |                  2 | On Loan: No      |
| Exchange traded                                       | RUSSELL 2000 INDEX                                    | CUSIP: 000000000<br>LEI: N/A                  | N/A              | DE               |  | US        |         6 | NC      | $1476.00      | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| ICE Futures U.S., Inc.                                | MSCI EAFE DEC22                                       | CUSIP: 000000000<br>LEI: 5493004R83R1LVX2IL36 | N/A              | DE               |  | US        |      -229 | NC      | $-1910874.75  | -2.09%            |  |  |  | No            |                  1 | On Loan: No      |
| MFS Value Fund                                        | MFS Value Fund                                        | CUSIP: 55273H353<br>LEI: HV6C0RMURVKFUQ3UTB42 | Long             | EC               | RF                | US        |    539377 | NS      | $28090764.47  | 30.68%            |  |  |  | No            |                  1 | On Loan: No      |
| Chicago Mercantile Exchange                           | E-MINI RUSS 1000 VDEC22                               | CUSIP: 000000000<br>LEI: SNZ2OJLFK8MNNCLQOF39 | N/A              | DE               |  | US        |      -282 | NC      | $-845585.55   | -0.92%            |  |  |  | No            |                  1 | On Loan: No      |
| Exchange traded                                       | RUSSELL 2000 INDEX                                    | CUSIP: 000000000<br>LEI: N/A                  | N/A              | DE               |  | US        |         6 | NC      | $15480.00     | 0.02%             |  |  |  | No            |                  2 | On Loan: No      |
| United States Treasury                                | United States Treasury Note/Bond                      | CUSIP: 912828T26<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   1000000 | PA      | $972460.94    | 1.06%             | 2023-09-30      | Fixed         | 1.38%                 | No            |                  2 | On Loan: No      |

### Signature

**Date Signed:** 2022-12-14

**Name of Applicant:** MFS SERIES TRUST X

**Signature:** Kasey Phillips

**Name of Signer:** Kasey Phillips

**Title:** Assistant Treasurer