# EDGAR Filing Document

**Accession Number:** 0000783740
**File Stem:** 0001410368-26-040071
**Filing Date:** 2026-4
**Character Count:** 47207
**Document Hash:** a36aef62e4488e4cc75e2e820d1d3113
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-040071.hdr.sgml**: 20260424

**ACCESSION NUMBER**: 0001410368-26-040071

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 4

**CONFORMED PERIOD OF REPORT**: 20260228

**FILED AS OF DATE**: 20260424

**DATE AS OF CHANGE**: 20260424

**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:** 26892053

**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 Blended Research Growth Equity Fund (Series ID: S000050658)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000160020 | A            | BRWAX           |
| C000160021 | B            | BRWBX           |
| C000160022 | C            | BRWCX           |
| C000160023 | I            | BRWJX           |
| C000160024 | R1           | BRWRX           |
| C000160025 | R2           | BRWSX           |
| C000160026 | R3           | BRWTX           |
| C000160027 | R4           | BRWUX           |
| C000160028 | R6           | BRWVX           |

## Nport-Ex

BRW-Q3

![](imgb4e1cf0d1.gif)

**Quarterly Report**

February 28, 2026

MFS<sup>®</sup> Blended Research<sup>®</sup> <br>Growth Equity Fund

![](imge6a5aa102.gif)

------

**Portfolio of Investments**

2/28/26 (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 – 98.9%  | Common Stocks – 98.9%  | Common Stocks – 98.9%  |
| Aerospace & Defense – 4.4% | Aerospace & Defense – 4.4% |  |
| BWX Technologies, Inc. | 30147 | &nbsp;&nbsp;&nbsp; $6209679 |
| Curtiss-Wright Corp. | 5463 | &nbsp;&nbsp;&nbsp; 3825903 |
| General Electric Co. | 31494 | &nbsp;&nbsp;&nbsp; 10779136 |
| Leidos Holdings, Inc. | 19462 | &nbsp;&nbsp;&nbsp; 3407796 |
|  |  | &nbsp;&nbsp;&nbsp; $24222514 |
| Automotive – 2.7% | Automotive – 2.7% |  |
| Aptiv PLC (a) | 9436 | &nbsp;&nbsp;&nbsp; $693923 |
| Tesla, Inc. (a) | 35470 | &nbsp;&nbsp;&nbsp; 14277030 |
|  |  | &nbsp;&nbsp;&nbsp; $14970953 |
| Biotechnology – 1.2% | Biotechnology – 1.2% |  |
| Gilead Sciences, Inc. | 40150 | &nbsp;&nbsp;&nbsp; $5980343 |
| Illumina, Inc. (a) | 5142 | &nbsp;&nbsp;&nbsp; 691393 |
|  |  | &nbsp;&nbsp;&nbsp; $6671736 |
| Broadcasting – 2.1% | Broadcasting – 2.1% |  |
| Netflix, Inc. (a) | 13045 | &nbsp;&nbsp;&nbsp; $1255451 |
| Spotify Technology S.A. (a) | 10614 | &nbsp;&nbsp;&nbsp; 5465573 |
| TKO Group Holdings, Inc. | 22306 | &nbsp;&nbsp;&nbsp; 4993644 |
|  |  | &nbsp;&nbsp;&nbsp; $11714668 |
| Brokerage & Asset Managers – 2.0% | Brokerage & Asset Managers – 2.0% |  |
| Citigroup, Inc. | 41150 | &nbsp;&nbsp;&nbsp; $4534319 |
| Interactive Brokers Group, Inc. | 88450 | &nbsp;&nbsp;&nbsp; 6296755 |
|  |  | &nbsp;&nbsp;&nbsp; $10831074 |
| Business Services – 1.1% | Business Services – 1.1% |  |
| Dropbox, Inc. (a) | 144107 | &nbsp;&nbsp;&nbsp; $3601234 |
| GoDaddy, Inc. (a) | 9481 | &nbsp;&nbsp;&nbsp; 826364 |
| Verisk Analytics, Inc., "A" | 7551 | &nbsp;&nbsp;&nbsp; 1567361 |
|  |  | &nbsp;&nbsp;&nbsp; $5994959 |
| Computer Software – 13.2% | Computer Software – 13.2% |  |
| Autodesk, Inc. (a) | 25415 | &nbsp;&nbsp;&nbsp; $6248786 |
| Datadog, Inc., "A" (a) | 45834 | &nbsp;&nbsp;&nbsp; 5131575 |
| Elastic N.V. (a) | 9781 | &nbsp;&nbsp;&nbsp; 509297 |
| Guidewire Software, Inc. (a) | 24213 | &nbsp;&nbsp;&nbsp; 3518633 |
| Microsoft Corp. | 119390 | &nbsp;&nbsp;&nbsp; 46889228 |
| Okta, Inc. (a) | 64371 | &nbsp;&nbsp;&nbsp; 4666897 |
| Palantir Technologies, Inc. (a) | 3935 | &nbsp;&nbsp;&nbsp; 539843 |
| Pegasystems, Inc. | 46900 | &nbsp;&nbsp;&nbsp; 2050937 |
| Salesforce, Inc. | 16292 | &nbsp;&nbsp;&nbsp; 3173519 |
|  |  | &nbsp;&nbsp;&nbsp; $72728715 |
| Computer Software - Systems – 11.5% | Computer Software - Systems – 11.5% |  |
| Apple, Inc. | 214845 | &nbsp;&nbsp;&nbsp; $56757752 |
| Arista Networks, Inc. (a) | 50697 | &nbsp;&nbsp;&nbsp; 6768050 |
|  |  | &nbsp;&nbsp;&nbsp; $63525802 |
| Consumer Products – 0.9% | Consumer Products – 0.9% |  |
| Colgate-Palmolive Co.  | 48718 | &nbsp;&nbsp;&nbsp; $4829903 |

---

------

*Portfolio of Investments (unaudited) – continued*

---

| | | |
|:---|:---|:---|
| **Issuer** | **Shares/Par** | **Value ($)** |
| Common Stocks – continued  | Common Stocks – continued  | Common Stocks – continued  |
| Consumer Services – 2.1% | Consumer Services – 2.1% |  |
| Airbnb, Inc., "A" (a) | 41969 | &nbsp;&nbsp;&nbsp; $5670431 |
| Booking Holdings, Inc. | 1126 | &nbsp;&nbsp;&nbsp; 4773508 |
| Uber Technologies, Inc. (a) | 18411 | &nbsp;&nbsp;&nbsp; 1388558 |
|  |  | &nbsp;&nbsp;&nbsp; $11832497 |
| Electrical Equipment – 1.2% | Electrical Equipment – 1.2% |  |
| Amphenol Corp., "A" | 40832 | &nbsp;&nbsp;&nbsp; $5963922 |
| nVent Electric PLC | 7744 | &nbsp;&nbsp;&nbsp; 916580 |
|  |  | &nbsp;&nbsp;&nbsp; $6880502 |
| Electronics – 20.7% | Electronics – 20.7% |  |
| Broadcom, Inc. | 72649 | &nbsp;&nbsp;&nbsp; $23214988 |
| Flex Ltd. (a) | 16451 | &nbsp;&nbsp;&nbsp; 1036742 |
| KLA Corp. | 2321 | &nbsp;&nbsp;&nbsp; 3538480 |
| Lam Research Corp. | 59812 | &nbsp;&nbsp;&nbsp; 13989429 |
| NVIDIA Corp. | 409715 | &nbsp;&nbsp;&nbsp; 72597401 |
|  |  | &nbsp;&nbsp;&nbsp; $114377040 |
| Energy - Independent – 0.4% | Energy - Independent – 0.4% |  |
| Phillips 66  | 13724 | &nbsp;&nbsp;&nbsp; $2118025 |
| Energy - Renewables – 1.8% | Energy - Renewables – 1.8% |  |
| AES Corp. | 95380 | &nbsp;&nbsp;&nbsp; $1648166 |
| GE Vernova, Inc. | 9556 | &nbsp;&nbsp;&nbsp; 8348122 |
|  |  | &nbsp;&nbsp;&nbsp; $9996288 |
| Engineering - Construction – 0.3% | Engineering - Construction – 0.3% |  |
| Primoris Services Corp.  | 10307 | &nbsp;&nbsp;&nbsp; $1553471 |
| Entertainment – 0.4% | Entertainment – 0.4% |  |
| Lamar Advertising Co., REIT  | 14443 | &nbsp;&nbsp;&nbsp; $1989379 |
| Food & Beverages – 1.3% | Food & Beverages – 1.3% |  |
| Monster Beverage Corp. (a)  | 86703 | &nbsp;&nbsp;&nbsp; $7395766 |
| Gaming & Lodging – 1.4% | Gaming & Lodging – 1.4% |  |
| Carnival Corp. | 12413 | &nbsp;&nbsp;&nbsp; $391630 |
| Viking Holdings Ltd. (a) | 94228 | &nbsp;&nbsp;&nbsp; 7351669 |
|  |  | &nbsp;&nbsp;&nbsp; $7743299 |
| Health Maintenance Organizations – 0.6% | Health Maintenance Organizations – 0.6% |  |
| Humana, Inc.  | 17985 | &nbsp;&nbsp;&nbsp; $3426862 |
| Insurance – 0.9% | Insurance – 0.9% |  |
| Equitable Holdings, Inc.  | 121153 | &nbsp;&nbsp;&nbsp; $4872774 |
| Interactive Media Services – 9.8% | Interactive Media Services – 9.8% |  |
| Alphabet, Inc., "A" | 51349 | &nbsp;&nbsp;&nbsp; $16008564 |
| Alphabet, Inc., "C" | 46762 | &nbsp;&nbsp;&nbsp; 14563090 |
| AppLovin Corp. (a) | 3915 | &nbsp;&nbsp;&nbsp; 1702125 |
| Meta Platforms, Inc., "A" | 33652 | &nbsp;&nbsp;&nbsp; 21812553 |
|  |  | &nbsp;&nbsp;&nbsp; $54086332 |
| Internet – 0.1% | Internet – 0.1% |  |
| Etsy, Inc. (a)  | 9761 | &nbsp;&nbsp;&nbsp; $535684 |
| Leisure & Toys – 0.6% | Leisure & Toys – 0.6% |  |
| Roblox Corp., "A" (a)  | 51505 | &nbsp;&nbsp;&nbsp; $3536333 |

---

------

*Portfolio of Investments (unaudited) – continued*

---

| | | |
|:---|:---|:---|
| **Issuer** | **Shares/Par** | **Value ($)** |
| Common Stocks – continued  | Common Stocks – continued  | Common Stocks – continued  |
| Machinery & Tools – 0.5% | Machinery & Tools – 0.5% |  |
| Flowserve Corp.  | 31816 | &nbsp;&nbsp;&nbsp; $2816352 |
| Medical & Health Technology & Services – 2.3% | Medical & Health Technology & Services – 2.3% |  |
| IQVIA Holdings, Inc. (a) | 20584 | &nbsp;&nbsp;&nbsp; $3680625 |
| McKesson Corp. | 7623 | &nbsp;&nbsp;&nbsp; 7526721 |
| Veeva Systems, Inc. (a) | 7389 | &nbsp;&nbsp;&nbsp; 1344872 |
|  |  | &nbsp;&nbsp;&nbsp; $12552218 |
| Medical Equipment – 0.1% | Medical Equipment – 0.1% |  |
| DexCom, Inc. (a)  | 9366 | &nbsp;&nbsp;&nbsp; $687745 |
| Other Banks & Diversified Financials – 4.2% | Other Banks & Diversified Financials – 4.2% |  |
| Mastercard, Inc., "A" | 14144 | &nbsp;&nbsp;&nbsp; $7315418 |
| Northern Trust Corp. | 43689 | &nbsp;&nbsp;&nbsp; 6251459 |
| Popular, Inc. | 37344 | &nbsp;&nbsp;&nbsp; 5054884 |
| Visa, Inc., "A" | 14734 | &nbsp;&nbsp;&nbsp; 4716943 |
|  |  | &nbsp;&nbsp;&nbsp; $23338704 |
| Pharmaceuticals – 3.9% | Pharmaceuticals – 3.9% |  |
| AbbVie, Inc. | 7551 | &nbsp;&nbsp;&nbsp; $1752436 |
| Bristol-Myers Squibb Co. | 112408 | &nbsp;&nbsp;&nbsp; 7010887 |
| Chewy, Inc., "A" (a) | 7788 | &nbsp;&nbsp;&nbsp; 213547 |
| Eli Lilly & Co. | 8478 | &nbsp;&nbsp;&nbsp; 8918771 |
| Incyte Corp. (a) | 28274 | &nbsp;&nbsp;&nbsp; 2863308 |
| Pfizer, Inc. | 24151 | &nbsp;&nbsp;&nbsp; 667775 |
|  |  | &nbsp;&nbsp;&nbsp; $21426724 |
| Restaurants – 0.2% | Restaurants – 0.2% |  |
| Aramark  | 31685 | &nbsp;&nbsp;&nbsp; $1326017 |
| Specialty Stores – 6.0% | Specialty Stores – 6.0% |  |
| Amazon.com, Inc. (a) | 116494 | &nbsp;&nbsp;&nbsp; $24463740 |
| Costco Wholesale Corp. | 1892 | &nbsp;&nbsp;&nbsp; 1912415 |
| O'Reilly Automotive, Inc. (a) | 75281 | &nbsp;&nbsp;&nbsp; 7067380 |
|  |  | &nbsp;&nbsp;&nbsp; $33443535 |
| Utilities - Electric Power – 1.0% | Utilities - Electric Power – 1.0% |  |
| NRG Energy, Inc.  | 31160 | &nbsp;&nbsp;&nbsp; $5576394 |
| **Total Common Stocks**  |  | &nbsp;&nbsp; **$547002265** |
| Mutual Funds (h) – 0.7%  | Mutual Funds (h) – 0.7%  | Mutual Funds (h) – 0.7%  |
| Money Market Funds – 0.7% | Money Market Funds – 0.7% |  |
| MFS Institutional Money Market Portfolio, 3.7% (v)  | 4089293 | &nbsp;&nbsp;&nbsp; $4089702 |
| Other Assets, Less Liabilities – 0.4% |  | &nbsp;&nbsp;&nbsp; 2134438 |
| **Net Assets – 100.0%** | **Net Assets – 100.0%** | &nbsp;&nbsp; **$553226405** |

---

&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 $4,089,702 and $547,002,265, respectively.

&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> REIT Real Estate Investment Trust

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

------

**Supplemental Information**

2/28/26 (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 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 February 28, 2026 in valuing the fund's assets and liabilities:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Financial Instruments** | **Level 1** | **Level 2** | **Level 3** | **Total** |
| Equity Securities | &nbsp;&nbsp;&nbsp; $547002265 | &nbsp;&nbsp;&nbsp; $— | &nbsp;&nbsp;&nbsp; $— | &nbsp;&nbsp;&nbsp; $547002265 |
| Investment Companies | &nbsp;&nbsp;&nbsp; 4089702 | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 4089702 |
| Total | &nbsp;&nbsp;&nbsp; $551091967 | &nbsp;&nbsp;&nbsp; $— | &nbsp;&nbsp;&nbsp; $— | &nbsp;&nbsp;&nbsp; $551091967 |

---

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

------

*Supplemental Information (unaudited) – continued*

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

**(2) 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. The following were affiliated issuers for the period ended February 28, 2026:

&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; $2522680 | &nbsp;&nbsp; $52283917 | &nbsp;&nbsp; $50717003 | &nbsp;&nbsp; $(87)<br>| &nbsp;&nbsp; $195 | &nbsp;&nbsp; $4089702<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; $125767 | &nbsp;&nbsp; $— |

---

------

## 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 Blended Research Growth Equity Fund

- **b. EDGAR series identifier (if any):** S000050658

- **c. LEI of Series:** 549300M0GLI3GVVPMM34

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

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

- **b. Date as of which information is reported:** 2026-02-28

**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:** $551545969.14

**Total Liabilities:** $100158.61

**Net Assets:** $551445810.53

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000160021 | -0.30%               | -0.35%               | -3.01%               |
| Class ID C000160025 | -0.29%               | -0.33%               | -2.92%               |
| Class ID C000160024 | -0.30%               | -0.39%               | -2.97%               |
| Class ID C000160026 | -0.25%               | -0.29%               | -2.92%               |
| Class ID C000160023 | -0.23%               | -0.29%               | -2.91%               |
| Class ID C000160022 | -0.30%               | -0.39%               | -2.98%               |
| Class ID C000160020 | -0.25%               | -0.33%               | -2.91%               |
| Class ID C000160028 | -0.22%               | -0.29%               | -2.90%               |
| Class ID C000160027 | -0.25%               | -0.29%               | -2.90%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $1865018.21              | $-3097497.20                               |
| Month 2  | $909570.83               | $-2524080.04                               |
| Month 3  | $-68.64                  | $-15904926.38                              |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Equitable Holdings Inc                   | Equitable Holdings Inc                   | CUSIP: 29452E101<br>LEI: 549300FIBAKMNHPZ4009 | Long             | EC               | CORP              | US        |    119987 | NS      | $4825877.14   | 0.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Primoris Services Corp                   | Primoris Services Corp                   | CUSIP: 74164F103<br>LEI: 549300UF3OLBJ8D5K349 | Long             | EC               | CORP              | US        |     10208 | NS      | $1538549.76   | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Salesforce Inc                           | Salesforce Inc                           | CUSIP: 79466L302<br>LEI: RCGZFPDMRW58VJ54VR07 | Long             | EC               | CORP              | US        |     16135 | NS      | $3142936.65   | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Okta Inc                                 | Okta Inc                                 | CUSIP: 679295105<br>LEI: 549300N8J06I8MRHU620 | Long             | EC               | CORP              | US        |     63751 | NS      | $4621947.50   | 0.84%             |  |  |  | No            |                  1 | On Loan: No      |
| Amphenol Corp                            | Amphenol Corp                            | CUSIP: 032095101<br>LEI: 549300D3L3G0R4U4VT04 | Long             | EC               | CORP              | US        |     40439 | NS      | $5906520.34   | 1.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Northern Trust Corp                      | Northern Trust Corp                      | CUSIP: 665859104<br>LEI: 549300GLF98S992BC502 | Long             | EC               | CORP              | US        |     43268 | NS      | $6191218.12   | 1.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Interactive Brokers Group Inc            | Interactive Brokers Group Inc            | CUSIP: 45841N107<br>LEI: 5493004DT6DCDUZNDM53 | Long             | EC               | CORP              | US        |     87598 | NS      | $6236101.62   | 1.13%             |  |  |  | No            |                  1 | On Loan: No      |
| AbbVie Inc                               | AbbVie Inc                               | CUSIP: 00287Y109<br>LEI: FR5LCKFTG8054YNNRU85 | Long             | EC               | CORP              | US        |      7478 | NS      | $1735494.24   | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| nVent Electric PLC                       | nVent Electric PLC                       | CUSIP: 000000000<br>LEI: 254900LK60A9DK5W5N81 | Long             | EC               | CORP              | IE        |      7669 | NS      | $907702.84    | 0.16%             |  |  |  | No            |                  1 | On Loan: No      |
| Costco Wholesale Corp                    | Costco Wholesale Corp                    | CUSIP: 22160K105<br>LEI: 29DX7H14B9S6O3FD6V18 | Long             | EC               | CORP              | US        |      1874 | NS      | $1894220.46   | 0.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Uber Technologies Inc                    | Uber Technologies Inc                    | CUSIP: 90353T100<br>LEI: 549300B2FTG34FILDR98 | Long             | EC               | CORP              | US        |     18234 | NS      | $1375208.28   | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Aramark                                  | Aramark                                  | CUSIP: 03852U106<br>LEI: 549300MR6PG2DWZUIL39 | Long             | EC               | CORP              | US        |     31380 | NS      | $1313253.00   | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Citigroup Inc                            | Citigroup Inc                            | CUSIP: 172967424<br>LEI: 6SHGI4ZSSLCXXQSBB395 | Long             | EC               | CORP              | US        |     40754 | NS      | $4490683.26   | 0.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Spotify Technology SA                    | Spotify Technology SA                    | CUSIP: 000000000<br>LEI: 549300B4X0JHWV0DTD60 | Long             | EC               | CORP              | LU        |     10512 | NS      | $5413049.28   | 0.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Dropbox Inc                              | Dropbox Inc                              | CUSIP: 26210C104<br>LEI: 549300JCDF7UAR6TJR51 | Long             | EC               | CORP              | US        |    142720 | NS      | $3566572.80   | 0.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Viking Holdings Ltd                      | Viking Holdings Ltd                      | CUSIP: 000000000<br>LEI: 52990032GOPN7BVQMN13 | Long             | EC               | CORP              | BM        |     93321 | NS      | $7280904.42   | 1.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                             | Alphabet Inc                             | CUSIP: 02079K305<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |     50855 | NS      | $15854554.80  | 2.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Phillips 66                              | Phillips 66                              | CUSIP: 718546104<br>LEI: 5493005JBO5YSIGK1814 | Long             | EC               | CORP              | US        |     13592 | NS      | $2097653.36   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Visa Inc                                 | Visa Inc                                 | CUSIP: 92826C839<br>LEI: 549300JZ4OKEHW3DPJ59 | Long             | EC               | CORP              | US        |     14592 | NS      | $4671482.88   | 0.85%             |  |  |  | No            |                  1 | On Loan: No      |
| NRG Energy Inc                           | NRG Energy Inc                           | CUSIP: 629377508<br>LEI: 5E2UPK5SW04M13XY7I38 | Long             | EC               | CORP              | US        |     30860 | NS      | $5522705.60   | 1.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Lam Research Corp                        | Lam Research Corp                        | CUSIP: 512807306<br>LEI: 549300I4GMO6D34U1T02 | Long             | EC               | CORP              | US        |     59236 | NS      | $13854708.04  | 2.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Leidos Holdings Inc                      | Leidos Holdings Inc                      | CUSIP: 525327102<br>LEI: 549300IUTGTP6EJP8124 | Long             | EC               | CORP              | US        |     19275 | NS      | $3375052.50   | 0.61%             |  |  |  | No            |                  1 | On Loan: No      |
| TKO Group Holdings Inc                   | TKO Group Holdings Inc                   | CUSIP: 87256C101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     22091 | NS      | $4945512.17   | 0.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Pegasystems Inc                          | Pegasystems Inc                          | CUSIP: 705573103<br>LEI: 549300FMCOKPL06FYN26 | Long             | EC               | CORP              | US        |     46448 | NS      | $2031171.04   | 0.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Microsoft Corp                           | Microsoft Corp                           | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |    118241 | NS      | $46437970.34  | 8.42%             |  |  |  | No            |                  1 | On Loan: No      |
| IQVIA Holdings Inc                       | IQVIA Holdings Inc                       | CUSIP: 46266C105<br>LEI: 549300W3R20NM4KQPH86 | Long             | EC               | CORP              | US        |     20386 | NS      | $3645220.66   | 0.66%             |  |  |  | No            |                  1 | On Loan: No      |
| Veeva Systems Inc                        | Veeva Systems Inc                        | CUSIP: 922475108<br>LEI: 549300YZEXPDB92M2F02 | Long             | EC               | CORP              | US        |      7318 | NS      | $1331949.18   | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Aptiv PLC                                | Aptiv PLC                                | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | JE        |      9345 | NS      | $687231.30    | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| NVIDIA Corp                              | NVIDIA Corp                              | CUSIP: 67066G104<br>LEI: 549300S4KLFTLO7GSQ80 | Long             | EC               | CORP              | US        |    405770 | NS      | $71898386.30  | 13.04%            |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                             | Alphabet Inc                             | CUSIP: 02079K107<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |     46312 | NS      | $14422946.16  | 2.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Lamar Advertising Co                     | Lamar Advertising Co                     | CUSIP: 512816109<br>LEI: 529900Y8WW4MKVPTB543 | Long             | EC               | CORP              | US        |     14304 | NS      | $1970232.96   | 0.36%             |  |  |  | No            |                  1 | On Loan: No      |
| O'Reilly Automotive Inc                  | O'Reilly Automotive Inc                  | CUSIP: 67103H107<br>LEI: 549300K2RLMQL149Q332 | Long             | EC               | CORP              | US        |     74556 | NS      | $6999317.28   | 1.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Illumina Inc                             | Illumina Inc                             | CUSIP: 452327109<br>LEI: SQ95QG8SR5Q56LSNF682 | Long             | EC               | CORP              | US        |      5092 | NS      | $684670.32    | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| GoDaddy Inc                              | GoDaddy Inc                              | CUSIP: 380237107<br>LEI: 549300J8H1TB0I2CB447 | Long             | EC               | CORP              | US        |      9390 | NS      | $818432.40    | 0.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Airbnb Inc                               | Airbnb Inc                               | CUSIP: 009066101<br>LEI: 549300HMUDNO0RY56D37 | Long             | EC               | CORP              | US        |     41565 | NS      | $5615847.15   | 1.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Guidewire Software Inc                   | Guidewire Software Inc                   | CUSIP: 40171V100<br>LEI: 549300WXSG0J8IXZCK32 | Long             | EC               | CORP              | US        |     23980 | NS      | $3484773.60   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Etsy Inc                                 | Etsy Inc                                 | CUSIP: 29786A106<br>LEI: 54930089Q7XT501AEA40 | Long             | EC               | CORP              | US        |      9667 | NS      | $530524.96    | 0.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Flowserve Corp                           | Flowserve Corp                           | CUSIP: 34354P105<br>LEI: 6Y0GK87T6V7NJKZJVM41 | Long             | EC               | CORP              | US        |     31510 | NS      | $2789265.20   | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Palantir Technologies Inc                | Palantir Technologies Inc                | CUSIP: 69608A108<br>LEI: 549300UVN46B3BBDHO85 | Long             | EC               | CORP              | US        |      3897 | NS      | $534629.43    | 0.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Incyte Corp                              | Incyte Corp                              | CUSIP: 45337C102<br>LEI: 549300Z4WN6JVZ3T4680 | Long             | EC               | CORP              | US        |     28002 | NS      | $2835762.54   | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Monster Beverage Corp                    | Monster Beverage Corp                    | CUSIP: 61174X109<br>LEI: 52990090AP0E7HCB6F33 | Long             | EC               | CORP              | US        |     85868 | NS      | $7324540.40   | 1.33%             |  |  |  | No            |                  1 | On Loan: No      |
| BWX Technologies Inc                     | BWX Technologies Inc                     | CUSIP: 05605H100<br>LEI: 549300NP85N265KWMS58 | Long             | EC               | CORP              | US        |     29857 | NS      | $6149944.86   | 1.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Netflix Inc                              | Netflix Inc                              | CUSIP: 64110L106<br>LEI: 549300Y7VHGU0I7CE873 | Long             | EC               | CORP              | US        |     12919 | NS      | $1243324.56   | 0.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Mastercard Inc                           | Mastercard Inc                           | CUSIP: 57636Q104<br>LEI: AR5L2ODV9HN37376R084 | Long             | EC               | CORP              | US        |     14008 | NS      | $7245077.68   | 1.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Popular Inc                              | Popular Inc                              | CUSIP: 733174700<br>LEI: 5493008CARDZMVQ3LO89 | Long             | EC               | CORP              | PR        |     36984 | NS      | $5006154.24   | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Broadcom Inc                             | Broadcom Inc                             | CUSIP: 11135F101<br>LEI: 549300WV6GIDOZJTV909 | Long             | EC               | CORP              | US        |     71950 | NS      | $22991622.50  | 4.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Tesla Inc                                | Tesla Inc                                | CUSIP: 88160R101<br>LEI: 54930043XZGB27CTOV49 | Long             | EC               | CORP              | US        |     35128 | NS      | $14139371.28  | 2.56%             |  |  |  | No            |                  1 | On Loan: No      |
| Arista Networks Inc                      | Arista Networks Inc                      | CUSIP: 040413205<br>LEI: 635400H1WKBLOQERUU95 | Long             | EC               | CORP              | US        |     50209 | NS      | $6702901.50   | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Flex Ltd                                 | Flex Ltd                                 | CUSIP: 000000000<br>LEI: 549300EAQH74YHD07T53 | Long             | EC               | CORP              | SG        |     16293 | NS      | $1026784.86   | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| MFS Institutional Money Market Portfolio | MFS Institutional Money Market Portfolio | CUSIP: 55291X109<br>LEI: 5L2W638H85N8T1136O07 | Long             | EC               | RF                | US        |   4074157 | NS      | $4074564.74   | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Curtiss-Wright Corp                      | Curtiss-Wright Corp                      | CUSIP: 231561101<br>LEI: TEL51ETZWP7D0ZM4X325 | Long             | EC               | CORP              | US        |      5410 | NS      | $3788785.30   | 0.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Dexcom Inc                               | Dexcom Inc                               | CUSIP: 252131107<br>LEI: 549300YSK3QDSFR5EU59 | Long             | EC               | CORP              | US        |      9276 | NS      | $681136.68    | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| General Electric Co                      | General Electric Co                      | CUSIP: 369604301<br>LEI: 3C7474T6CDKPR9K6YT90 | Long             | EC               | CORP              | US        |     31191 | NS      | $10675431.66  | 1.94%             |  |  |  | No            |                  1 | On Loan: No      |
| Meta Platforms Inc                       | Meta Platforms Inc                       | CUSIP: 30303M102<br>LEI: BQ4BKCS1HXDV9HN80Z93 | Long             | EC               | CORP              | US        |     33328 | NS      | $21602543.04  | 3.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Pfizer Inc                               | Pfizer Inc                               | CUSIP: 717081103<br>LEI: 765LHXWGK1KXCLTFYQ30 | Long             | EC               | CORP              | US        |     23918 | NS      | $661332.70    | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Autodesk Inc                             | Autodesk Inc                             | CUSIP: 052769106<br>LEI: FRKKVKAIQEF3FCSTPG55 | Long             | EC               | CORP              | US        |     25170 | NS      | $6188547.90   | 1.12%             |  |  |  | No            |                  1 | On Loan: No      |
| GE Vernova Inc                           | GE Vernova Inc                           | CUSIP: 36828A101<br>LEI: 254900DP080RU6OK2553 | Long             | EC               | CORP              | US        |      9464 | NS      | $8267750.40   | 1.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Elastic NV                               | Elastic NV                               | CUSIP: 000000000<br>LEI: 2549003I48WHHH937I59 | Long             | EC               | CORP              | NL        |      9687 | NS      | $504402.09    | 0.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Datadog Inc                              | Datadog Inc                              | CUSIP: 23804L103<br>LEI: 549300F6JNO0KRPO1K63 | Long             | EC               | CORP              | US        |     45393 | NS      | $5082200.28   | 0.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Carnival Corp                            | Carnival Corp                            | CUSIP: 143658300<br>LEI: F1OF2ZSX47CR0BCWA982 | Long             | EC               | CORP              | PA        |     12293 | NS      | $387844.15    | 0.07%             |  |  |  | No            |                  1 | On Loan: No      |
| KLA Corp                                 | KLA Corp                                 | CUSIP: 482480100<br>LEI: 549300H0BF5JCG96TJ81 | Long             | EC               | CORP              | US        |      2299 | NS      | $3504940.45   | 0.64%             |  |  |  | No            |                  1 | On Loan: No      |
| AES Corp/The                             | AES Corp                                 | CUSIP: 00130H105<br>LEI: 2NUNNB7D43COUIRE5295 | Long             | EC               | CORP              | US        |     94462 | NS      | $1632303.36   | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| McKesson Corp                            | McKesson Corp                            | CUSIP: 58155Q103<br>LEI: 549300WZWOM80UCFSF54 | Long             | EC               | CORP              | US        |      7550 | NS      | $7454643.50   | 1.35%             |  |  |  | No            |                  1 | On Loan: No      |
| Verisk Analytics Inc                     | Verisk Analytics Inc                     | CUSIP: 92345Y106<br>LEI: 549300I1YSWNIRKBWP67 | Long             | EC               | CORP              | US        |      7478 | NS      | $1552208.46   | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Humana Inc                               | Humana Inc                               | CUSIP: 444859102<br>LEI: 529900YLDW34GJAO4J06 | Long             | EC               | CORP              | US        |     17812 | NS      | $3393898.48   | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| ROBLOX Corp                              | ROBLOX Corp                              | CUSIP: 771049103<br>LEI: 529900ANZDBDFU91SO19 | Long             | EC               | CORP              | US        |     51009 | NS      | $3502277.94   | 0.64%             |  |  |  | No            |                  1 | On Loan: No      |
| Apple Inc                                | Apple Inc                                | CUSIP: 037833100<br>LEI: HWUPKR0MPOU8FGXBT394 | Long             | EC               | CORP              | US        |    212776 | NS      | $56211163.68  | 10.19%            |  |  |  | No            |                  1 | On Loan: No      |
| Chewy Inc                                | Chewy Inc                                | CUSIP: 16679L109<br>LEI: 254900NPQSTG9I422879 | Long             | EC               | CORP              | US        |      7713 | NS      | $211490.46    | 0.04%             |  |  |  | No            |                  1 | On Loan: No      |
| AppLovin Corp                            | AppLovin Corp                            | CUSIP: 03831W108<br>LEI: 549300LLVXMUAOL3SQ07 | Long             | EC               | CORP              | US        |      3877 | NS      | $1685603.29   | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Booking Holdings Inc                     | Booking Holdings Inc                     | CUSIP: 09857L108<br>LEI: FXM8FAOHMYDIPD38UZ17 | Long             | EC               | CORP              | US        |      1115 | NS      | $4726875.25   | 0.86%             |  |  |  | No            |                  1 | On Loan: No      |
| Colgate-Palmolive Co                     | Colgate-Palmolive Co                     | CUSIP: 194162103<br>LEI: YMEGZFW4SBUSS5BQXF88 | Long             | EC               | CORP              | US        |     48249 | NS      | $4783405.86   | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| Eli Lilly & Co                           | Eli Lilly & Co                           | CUSIP: 532457108<br>LEI: FRDRIPF3EKNDJ2CQJL29 | Long             | EC               | CORP              | US        |      8396 | NS      | $8832508.04   | 1.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Amazon.com Inc                           | Amazon.com Inc                           | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |    115372 | NS      | $24228120.00  | 4.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Bristol-Myers Squibb Co                  | Bristol-Myers Squibb Co                  | CUSIP: 110122108<br>LEI: HLYYNH7UQUORYSJQCN42 | Long             | EC               | CORP              | US        |    111326 | NS      | $6943402.62   | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Gilead Sciences Inc                      | Gilead Sciences Inc                      | CUSIP: 375558103<br>LEI: 549300WTZWR07K8MNV44 | Long             | EC               | CORP              | US        |     39763 | NS      | $5922698.85   | 1.07%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-03-27

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

**Signature:** James Byrne

**Name of Signer:** James Byrne

**Title:** Assistant Treasurer