# EDGAR Filing Document

**Accession Number:** 0000918571
**File Stem:** 0001752724-25-200816
**Filing Date:** 2025-8
**Character Count:** 41553
**Document Hash:** 89e542d35e5c7f4355a39b585f5ce7ca
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-25-200816.hdr.sgml**: 20250825

**ACCESSION NUMBER**: 0001752724-25-200816

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250825

**DATE AS OF CHANGE**: 20250825

**PERIOD START**: 20251231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MFS VARIABLE INSURANCE TRUST
- **CENTRAL INDEX KEY:** 0000918571

**ORGANIZATION NAME:**
- **EIN:** 043226600
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-08326
- **FILM NUMBER:** 251248117

**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

## Series and Classes Contracts Data

### MFS New Discovery Series (Series ID: S000002680)

| Class ID   | Class Name    | Ticker Symbol   |
|:---|:---|:---|
| C000007329 | Initial Class |  |
| C000007330 | Service Class |  |

## 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 VARIABLE INSURANCE TRUST

- **b. Investment Company Act file number:** 811-08326

- **c. CIK number of Registrant:** 0000918571

- **d. LEI of Registrant:** 4GB90YGNINHU70MFQX13

- **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 New Discovery Series

- **b. EDGAR series identifier (if any):** S000002680

- **c. LEI of Series:** UL64BH8MFVUS63PN5829

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

- **a. Date of fiscal year-end:** 2025-12-31

- **b. Date as of which information is reported:** 2025-06-30

**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:** $733439681.59

**Total Liabilities:** $16591376.37

**Net Assets:** $716848305.22

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000007329 | 0.39%                | 5.28%                | 5.98%                |
| Class ID C000007330 | 0.40%                | 5.19%                | 5.98%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-2111754.23             | $5133650.67                                |
| Month 2  | $1359285.32              | $33171739.71                               |
| Month 3  | $13096472.63             | $27770401.68                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Ionis Pharmaceuticals Inc                 | Ionis Pharmaceuticals Inc                 | CUSIP: 462222100<br>LEI: 549300SI4ZGLG0BLUZ92 | Long             | EC               | CORP              | US        |    119834 | NS      | $4734641.34   | 0.66%             |  |  |  | No            |                  1 | On Loan: No      |
| UL Solutions Inc                          | UL Solutions Inc                          | CUSIP: 903731107<br>LEI: 549300F7CUV5ESKV9P71 | Long             | EC               | CORP              | US        |     24723 | NS      | $1801317.78   | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Ligand Pharmaceuticals Inc                | Ligand Pharmaceuticals Inc                | CUSIP: 53220K504<br>LEI: 5493008K7TB0IKP37H79 | Long             | EC               | CORP              | US        |     78588 | NS      | $8933883.84   | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Independence Realty Trust Inc             | Independence Realty Trust Inc             | CUSIP: 45378A106<br>LEI: 549300Z3L8NU44NQEB29 | Long             | EC               | CORP              | US        |    447003 | NS      | $7907483.07   | 1.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Onestream Inc                             | Onestream Inc                             | CUSIP: 68278B107<br>LEI: 254900CRBCHIYDC37W82 | Long             | EC               | CORP              | US        |    245533 | NS      | $6948583.90   | 0.97%             |  |  |  | No            |                  1 | On Loan: No      |
| AZEK Co Inc/The                           | AZEK Co Inc/The                           | CUSIP: 05478C105<br>LEI: 5493002LDDDU1RX46815 | Long             | EC               | CORP              | US        |     68818 | NS      | $3740258.30   | 0.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Absci Corp                                | Absci Corp                                | CUSIP: 00091E109<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    507730 | NS      | $1304866.10   | 0.18%             |  |  |  | No            |                  1 | On Loan: —       |
| Alkami Technology Inc                     | Alkami Technology Inc                     | CUSIP: 01644J108<br>LEI: 254900FCNYU4HNEV9L47 | Long             | EC               | CORP              | US        |    315962 | NS      | $9523094.68   | 1.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Mirion Technologies Inc                   | Mirion Technologies Inc                   | CUSIP: 60471A101<br>LEI: 549300BNTOWVWFNVTJ65 | Long             | EC               | CORP              | US        |    250291 | NS      | $5388765.23   | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| P10 Inc                                   | P10 Inc                                   | CUSIP: 69376K106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    455607 | NS      | $4656303.54   | 0.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Exact Sciences Corp                       | Exact Sciences Corp                       | CUSIP: 30063P105<br>LEI: 549300VM3X1FYD4N9Z14 | Long             | EC               | CORP              | US        |     91761 | NS      | $4876179.54   | 0.68%             |  |  |  | No            |                  1 | On Loan: No      |
| BioLife Solutions Inc                     | BioLife Solutions Inc                     | CUSIP: 09062W204<br>LEI: 549300G2IVCMC2TJDW72 | Long             | EC               | CORP              | US        |    245021 | NS      | $5277752.34   | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| UFP Technologies Inc                      | UFP Technologies Inc                      | CUSIP: 902673102<br>LEI: 549300RJ8LY41HS70C91 | Long             | EC               | CORP              | US        |     36316 | NS      | $8866914.56   | 1.24%             |  |  |  | No            |                  1 | On Loan: No      |
| nVent Electric PLC                        | nVent Electric PLC                        | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | IE        |    201539 | NS      | $14762731.75  | 2.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Permian Resources Corp                    | Permian Resources Corp                    | CUSIP: 71424F105<br>LEI: 529900NXUJPOKU7OJ511 | Long             | EC               | CORP              | US        |    302298 | NS      | $4117298.76   | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| ExlService Holdings Inc                   | ExlService Holdings Inc                   | CUSIP: 302081104<br>LEI: 81E3DTNF6OSH489ZOV15 | Long             | EC               | CORP              | US        |    162707 | NS      | $7124939.53   | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| JFrog Ltd                                 | JFrog Ltd                                 | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | IL        |    261857 | NS      | $11490285.16  | 1.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Ollie's Bargain Outlet Holdings Inc       | Ollie's Bargain Outlet Holdings Inc       | CUSIP: 681116109<br>LEI: 529900YO5DSQCPEFDZ05 | Long             | EC               | CORP              | US        |     57301 | NS      | $7551125.78   | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| KBR Inc                                   | KBR Inc                                   | CUSIP: 48242W106<br>LEI: 254900OFQDXZRKRCV808 | Long             | EC               | CORP              | US        |    103399 | NS      | $4956948.06   | 0.69%             |  |  |  | No            |                  1 | On Loan: No      |
| iRhythm Technologies Inc                  | iRhythm Technologies Inc                  | CUSIP: 450056106<br>LEI: 549300FJI72RJGDQS384 | Long             | EC               | CORP              | US        |     29287 | NS      | $4509026.52   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| US Foods Holding Corp                     | US Foods Holding Corp                     | CUSIP: 912008109<br>LEI: 549300UGOZSO64CFPR97 | Long             | EC               | CORP              | US        |    152988 | NS      | $11781605.88  | 1.64%             |  |  |  | No            |                  1 | On Loan: No      |
| Adaptive Biotechnologies Corp             | Adaptive Biotechnologies Corp             | CUSIP: 00650F109<br>LEI: 549300ZTF7OT1FW66Q96 | Long             | EC               | CORP              | US        |    329544 | NS      | $3839187.60   | 0.54%             |  |  |  | No            |                  1 | On Loan: No      |
| Sportradar Group AG                       | Sportradar Group AG                       | CUSIP: 000000000<br>LEI: 549300H1P33YOAT7Z533 | Long             | EC               | CORP              | CH        |    231506 | NS      | $6500688.48   | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Collegium Pharmaceutical Inc              | Collegium Pharmaceutical Inc              | CUSIP: 19459J104<br>LEI: 54930049FXZMTLW8D496 | Long             | EC               | CORP              | US        |    181483 | NS      | $5366452.31   | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Axalta Coating Systems Ltd                | Axalta Coating Systems Ltd                | CUSIP: 000000000<br>LEI: 529900AGLPA40GV6H619 | Long             | EC               | CORP              | BM        |     76898 | NS      | $2283101.62   | 0.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Advanced Energy Industries Inc            | Advanced Energy Industries Inc            | CUSIP: 007973100<br>LEI: 549300756XI3QLFT2U27 | Long             | EC               | CORP              | US        |     82097 | NS      | $10877852.50  | 1.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Modine Manufacturing Co                   | Modine Manufacturing Co                   | CUSIP: 607828100<br>LEI: Z35SZFYJR8GZZRSIUU09 | Long             | EC               | CORP              | US        |     64748 | NS      | $6377678.00   | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| GCM Grosvenor Inc                         | GCM Grosvenor Inc                         | CUSIP: 36831E108<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    458334 | NS      | $5298341.04   | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Ascendis Pharma A/S                       | Ascendis Pharma A/S                       | CUSIP: 04351P101<br>LEI: 549300B66JN3W3J8GH73 | Long             | EC               | CORP              | DK        |     35862 | NS      | $6189781.20   | 0.86%             |  |  |  | No            |                  1 | On Loan: No      |
| Knife River Corp                          | Knife River Corp                          | CUSIP: 498894104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    135831 | NS      | $11089242.84  | 1.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Gerresheimer AG                           | Gerresheimer AG                           | CUSIP: 000000000<br>LEI: 5299006GD4UWSYZOKC28 | Long             | EC               | CORP              | DE        |     64074 | NS      | $3613791.35   | 0.50%             |  |  |  | No            |                  1 | On Loan: No      |
| JP Morgan US Government Money Market Fund | JP Morgan US Government Money Market Fund | CUSIP: 4812C2270<br>LEI: 549300NQ5E5B7ZV4T516 | Long             | STIV             | RF                | US        |  15973000 | NS      | $15973000.00  | 2.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Terreno Realty Corp                       | Terreno Realty Corp                       | CUSIP: 88146M101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    167849 | NS      | $9411293.43   | 1.31%             |  |  |  | No            |                  1 | On Loan: No      |
| QXO INC(PIPE)144APIPE PRIVATEP            | QXO INC(PIPE)144APIPE PRIVATEP            | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    379925 | NS      | $8183584.50   | 1.14%             |  |  |  | Yes           |                  2 | On Loan: No      |
| Ceribell Inc                              | Ceribell Inc                              | CUSIP: 15678C102<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    127979 | NS      | $2397046.67   | 0.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Genius Sports Ltd                         | Genius Sports Ltd                         | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | GG        |   1250102 | NS      | $13001060.80  | 1.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Pegasystems Inc                           | Pegasystems Inc                           | CUSIP: 705573103<br>LEI: 549300FMCOKPL06FYN26 | Long             | EC               | CORP              | US        |    186980 | NS      | $10121227.40  | 1.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Chefs' Warehouse Inc/The                  | Chefs' Warehouse Inc/The                  | CUSIP: 163086101<br>LEI: 549300JYEDC8C547E980 | Long             | EC               | CORP              | US        |    111888 | NS      | $7139573.28   | 1.00%             |  |  |  | No            |                  1 | On Loan: No      |
| James Hardie Industries PLC               | James Hardie Industries PLC               | CUSIP: 47030M106<br>LEI: 635400NSGXKTVOO7JU45 | Long             | EC               | CORP              | IE        |    205964 | NS      | $5538371.96   | 0.77%             |  |  |  | No            |                  1 | On Loan: —       |
| Align Technology Inc                      | Align Technology Inc                      | CUSIP: 016255101<br>LEI: 549300N5YSE0U3LCP840 | Long             | EC               | CORP              | US        |     38144 | NS      | $7221803.52   | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |
| StandardAero Inc                          | StandardAero Inc                          | CUSIP: 85423L103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    176322 | NS      | $5580591.30   | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Viper Energy Inc                          | Viper Energy Inc                          | CUSIP: 927959106<br>LEI: 5299009LINL232255G03 | Long             | EC               | CORP              | US        |    113062 | NS      | $4311054.06   | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Wingstop Inc                              | Wingstop Inc                              | CUSIP: 974155103<br>LEI: 549300SSH3F8HPIM3Q47 | Long             | EC               | CORP              | US        |     25011 | NS      | $8422204.14   | 1.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Bloom Energy Corp                         | Bloom Energy Corp                         | CUSIP: 093712107<br>LEI: 549300XB5J9BFW5JXV97 | Long             | EC               | CORP              | US        |    155477 | NS      | $3719009.84   | 0.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Patrick Industries Inc                    | Patrick Industries Inc                    | CUSIP: 703343103<br>LEI: 549300FZ5ZTCCJ3Z5W14 | Long             | EC               | CORP              | US        |     65637 | NS      | $6056325.99   | 0.84%             |  |  |  | No            |                  1 | On Loan: No      |
| WisdomTree Inc                            | WisdomTree Inc                            | CUSIP: 97717P104<br>LEI: 549300WIU8IS7UFO7871 | Long             | EC               | CORP              | US        |    804402 | NS      | $9258667.02   | 1.29%             |  |  |  | No            |                  1 | On Loan: No      |
| ServiceTitan Inc                          | ServiceTitan Inc                          | CUSIP: 81764X103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     28055 | NS      | $3006934.90   | 0.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Guidewire Software Inc                    | Guidewire Software Inc                    | CUSIP: 40171V100<br>LEI: 549300WXSG0J8IXZCK32 | Long             | EC               | CORP              | US        |     23610 | NS      | $5558974.50   | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Guardant Health Inc                       | Guardant Health Inc                       | CUSIP: 40131M109<br>LEI: 254900M8C3E5VC8BR186 | Long             | EC               | CORP              | US        |     70667 | NS      | $3677510.68   | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Flowserve Corp                            | Flowserve Corp                            | CUSIP: 34354P105<br>LEI: 6Y0GK87T6V7NJKZJVM41 | Long             | EC               | CORP              | US        |    291939 | NS      | $15283006.65  | 2.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Tempus AI Inc                             | Tempus AI Inc                             | CUSIP: 88023B103<br>LEI: 2549009LA0KWRAGQBX50 | Long             | EC               | CORP              | US        |     31071 | NS      | $1974251.34   | 0.28%             |  |  |  | No            |                  1 | On Loan: —       |
| Brunswick Corp/DE                         | Brunswick Corp/DE                         | CUSIP: 117043109<br>LEI: YM4O38W15AX4YLLQKU27 | Long             | EC               | CORP              | US        |     94687 | NS      | $5230509.88   | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| PJT Partners Inc                          | PJT Partners Inc                          | CUSIP: 69343T107<br>LEI: 549300W3WBEQUBKYTN87 | Long             | EC               | CORP              | US        |     40471 | NS      | $6678119.71   | 0.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Kinaxis Inc                               | Kinaxis Inc                               | CUSIP: 49448Q109<br>LEI: 5299009VAZ14K7PFUQ15 | Long             | EC               | CORP              | CA        |     46100 | NS      | $6856010.28   | 0.96%             |  |  |  | No            |                  1 | On Loan: No      |
| GeneDx Holdings Corp                      | GeneDx Holdings Corp                      | CUSIP: 81663L200<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     54442 | NS      | $5025541.02   | 0.70%             |  |  |  | No            |                  1 | On Loan: No      |
| Globus Medical Inc                        | Globus Medical Inc                        | CUSIP: 379577208<br>LEI: 5299003M2P4CIK0RF205 | Long             | EC               | CORP              | US        |    196059 | NS      | $11571402.18  | 1.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Outset Medical Inc                        | Outset Medical Inc                        | CUSIP: 690145206<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    147173 | NS      | $2827193.33   | 0.39%             |  |  |  | No            |                  1 | On Loan: —       |
| Fractyl Health Inc                        | Fractyl Health Inc                        | CUSIP: 35168W103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    206861 | NS      | $335114.82    | 0.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Caris Life Sciences Inc                   | Caris Life Sciences Inc                   | CUSIP: 142152107<br>LEI: 549300LX5LO78M5VPY43 | Long             | EC               | CORP              | US        |    108330 | NS      | $2894577.60   | 0.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Immunocore Holdings PLC                   | Immunocore Holdings PLC                   | CUSIP: 45258D105<br>LEI: 213800IUE3DFS84BVN18 | Long             | EC               | CORP              | GB        |    100063 | NS      | $3139976.94   | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Knight-Swift Transportation Holdings Inc  | Knight-Swift Transportation Holdings Inc  | CUSIP: 499049104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    139705 | NS      | $6179152.15   | 0.86%             |  |  |  | No            |                  1 | On Loan: No      |
| RB Global Inc                             | RB Global Inc                             | CUSIP: 74935Q107<br>LEI: 5493002H8U24DJXQ4886 | Long             | EC               | CORP              | CA        |    101192 | NS      | $10745578.48  | 1.50%             |  |  |  | No            |                  1 | On Loan: No      |
| AptarGroup Inc                            | AptarGroup Inc                            | CUSIP: 038336103<br>LEI: VNPEQDQFAA7IY1T2PX43 | Long             | EC               | CORP              | US        |     46198 | NS      | $7226753.14   | 1.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Jacobs Solutions Inc                      | Jacobs Solutions Inc                      | CUSIP: 46982L108<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     27501 | NS      | $3615006.45   | 0.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Oddity Tech Ltd                           | Oddity Tech Ltd                           | CUSIP: 000000000<br>LEI: 254900QH12XZS53G0V57 | Long             | EC               | CORP              | IL        |     54500 | NS      | $4113115.00   | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Albany International Corp                 | Albany International Corp                 | CUSIP: 012348108<br>LEI: L73WCPNCZIRSQGZTW097 | Long             | EC               | CORP              | US        |     61430 | NS      | $4308085.90   | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Crane Co                                  | Crane Co                                  | CUSIP: 224408104<br>LEI: 5493000CQRQOTHUODL75 | Long             | EC               | CORP              | US        |     65081 | NS      | $12358231.09  | 1.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Littelfuse Inc                            | Littelfuse Inc                            | CUSIP: 537008104<br>LEI: 549300MY7HLQFYTPCX75 | Long             | EC               | CORP              | US        |     30950 | NS      | $7017293.50   | 0.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Blueprint Medicines Corp                  | Blueprint Medicines Corp                  | CUSIP: 09627Y109<br>LEI: 5299004CC60O9T5HVM83 | Long             | EC               | CORP              | US        |     13985 | NS      | $1792597.30   | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| MFS Institutional Money Market Portfolio  | MFS Institutional Money Market Portfolio  | CUSIP: 55291X109<br>LEI: 5L2W638H85N8T1136O07 | Long             | EC               | RF                | US        |  27081090 | NS      | $27083798.47  | 3.78%             |  |  |  | No            |                  1 | On Loan: No      |
| GFL Environmental Inc                     | GFL Environmental Inc                     | CUSIP: 36168Q104<br>LEI: 549300FYK4MBXWIVZU26 | Long             | EC               | CORP              | CA        |    120464 | NS      | $6078613.44   | 0.85%             |  |  |  | No            |                  1 | On Loan: No      |
| FormFactor Inc                            | FormFactor Inc                            | CUSIP: 346375108<br>LEI: 549300YCEEO6SZD1ZR61 | Long             | EC               | CORP              | US        |    285786 | NS      | $9833896.26   | 1.37%             |  |  |  | No            |                  1 | On Loan: No      |
| TechnipFMC PLC                            | TechnipFMC PLC                            | CUSIP: 000000000<br>LEI: 549300D5I93QWCJTCK36 | Long             | EC               | CORP              | GB        |    185305 | NS      | $6381904.20   | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Kymera Therapeutics Inc                   | Kymera Therapeutics Inc                   | CUSIP: 501575104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    104129 | NS      | $4544189.56   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| SentinelOne Inc                           | SentinelOne Inc                           | CUSIP: 81730H109<br>LEI: 984500DCD44DBF954221 | Long             | EC               | CORP              | US        |    344840 | NS      | $6303675.20   | 0.88%             |  |  |  | No            |                  1 | On Loan: No      |
| Bio-Techne Corp                           | Bio-Techne Corp                           | CUSIP: 09073M104<br>LEI: 54930073RLKQ51TILZ35 | Long             | EC               | CORP              | US        |    192073 | NS      | $9882155.85   | 1.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Columbia Sportswear Co                    | Columbia Sportswear Co                    | CUSIP: 198516106<br>LEI: 549300OTMCIEUXAH5Z60 | Long             | EC               | CORP              | US        |     86434 | NS      | $5279388.72   | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| CCC Intelligent Solutions Holdings Inc    | CCC Intelligent Solutions Holdings Inc    | CUSIP: 12510Q100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    994819 | NS      | $9361246.79   | 1.31%             |  |  |  | No            |                  1 | On Loan: No      |
| QIAGEN NV                                 | QIAGEN NV                                 | CUSIP: 000000000<br>LEI: 54930036WK3GMCN17Z57 | Long             | EC               | CORP              | NL        |    222139 | NS      | $10676000.34  | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Etoro Group Ltd                           | Etoro Group Ltd                           | CUSIP: 000000000<br>LEI: 213800XPRPJK2X5QRG86 | Long             | EC               | CORP              | VG        |     58232 | NS      | $3877668.88   | 0.54%             |  |  |  | No            |                  1 | On Loan: —       |
| Elastic NV                                | Elastic NV                                | CUSIP: 000000000<br>LEI: 2549003I48WHHH937I59 | Long             | EC               | CORP              | NL        |     83743 | NS      | $7062047.19   | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| Legend Biotech Corp                       | Legend Biotech Corp                       | CUSIP: 52490G102<br>LEI: 254900EIUFZTW136H859 | Long             | EC               | CORP              | KY        |    103074 | NS      | $3658096.26   | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Allegro MicroSystems Inc                  | Allegro MicroSystems Inc                  | CUSIP: 01749D105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    119062 | NS      | $4070729.78   | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| ACV Auctions Inc                          | ACV Auctions Inc                          | CUSIP: 00091G104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    489069 | NS      | $7932699.18   | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Schrodinger Inc/United States             | Schrodinger Inc/United States             | CUSIP: 80810D103<br>LEI: 984500044BAE4791E559 | Long             | EC               | CORP              | US        |    346609 | NS      | $6973773.08   | 0.97%             |  |  |  | No            |                  1 | On Loan: No      |
| Ultragenyx Pharmaceutical Inc             | Ultragenyx Pharmaceutical Inc             | CUSIP: 90400D108<br>LEI: 529900EV44GVDN1DCX77 | Long             | EC               | CORP              | US        |    104426 | NS      | $3796929.36   | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Harmony Biosciences Holdings Inc          | Harmony Biosciences Holdings Inc          | CUSIP: 413197104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    148413 | NS      | $4689850.80   | 0.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Neurocrine Biosciences Inc                | Neurocrine Biosciences Inc                | CUSIP: 64125C109<br>LEI: 549300FECER0XBN49756 | Long             | EC               | CORP              | US        |     39588 | NS      | $4975815.72   | 0.69%             |  |  |  | No            |                  1 | On Loan: No      |
| HealthEquity Inc                          | HealthEquity Inc                          | CUSIP: 42226A107<br>LEI: 529900LRJU1RAFQHM467 | Long             | EC               | CORP              | US        |     50084 | NS      | $5246799.84   | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Masimo Corp                               | Masimo Corp                               | CUSIP: 574795100<br>LEI: 549300Q4A8JK0PIYCU29 | Long             | EC               | CORP              | US        |     30822 | NS      | $5184876.84   | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| XPO Inc                                   | XPO Inc                                   | CUSIP: 983793100<br>LEI: 54930096DB9LCLPN7H13 | Long             | EC               | CORP              | US        |     49349 | NS      | $6232285.21   | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| CACI International Inc                    | CACI International Inc                    | CUSIP: 127190304<br>LEI: SYRPI2D1O9WRTS2WX210 | Long             | EC               | CORP              | US        |     21601 | NS      | $10297196.70  | 1.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Antero Resources Corp                     | Antero Resources Corp                     | CUSIP: 03674X106<br>LEI: APVBKPOULHUX7YZLKU17 | Long             | EC               | CORP              | US        |    131030 | NS      | $5277888.40   | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Matador Resources Co                      | Matador Resources Co                      | CUSIP: 576485205<br>LEI: 549300CI3Q2UUK5R4G79 | Long             | EC               | CORP              | US        |     91008 | NS      | $4342901.76   | 0.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Certara Inc                               | Certara Inc                               | CUSIP: 15687V109<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    368766 | NS      | $4314562.20   | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| QXO Inc                                   | QXO Inc                                   | CUSIP: 82846H405<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    180604 | NS      | $3890210.16   | 0.54%             |  |  |  | No            |                  1 | On Loan: No      |
| CG oncology Inc                           | CG oncology Inc                           | CUSIP: 156944100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     55280 | NS      | $1437280.00   | 0.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Lantheus Holdings Inc                     | Lantheus Holdings Inc                     | CUSIP: 516544103<br>LEI: 5299005HUB5IOJGO7S39 | Long             | EC               | CORP              | US        |     75932 | NS      | $6215793.52   | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| Cytokinetics Inc                          | Cytokinetics Inc                          | CUSIP: 23282W605<br>LEI: 549300BE5DY1HW7IHA64 | Long             | EC               | CORP              | US        |    107108 | NS      | $3538848.32   | 0.49%             |  |  |  | No            |                  1 | On Loan: No      |
| TriNet Group Inc                          | TriNet Group Inc                          | CUSIP: 896288107<br>LEI: 5299003FJVBETSFKE990 | Long             | EC               | CORP              | US        |     62562 | NS      | $4575784.68   | 0.64%             |  |  |  | No            |                  1 | On Loan: No      |
| STAG Industrial Inc                       | STAG Industrial Inc                       | CUSIP: 85254J102<br>LEI: 549300QWYX2W6FASVQ07 | Long             | EC               | CORP              | US        |    137549 | NS      | $4990277.72   | 0.70%             |  |  |  | No            |                  1 | On Loan: No      |
| Visteon Corp                              | Visteon Corp                              | CUSIP: 92839U206<br>LEI: 549300MOVLYHRW4GGW78 | Long             | EC               | CORP              | US        |    104971 | NS      | $9793794.30   | 1.37%             |  |  |  | No            |                  1 | On Loan: No      |
| elf Beauty Inc                            | elf Beauty Inc                            | CUSIP: 26856L103<br>LEI: 549300U2K9TCON25C029 | Long             | EC               | CORP              | US        |     37308 | NS      | $4642607.52   | 0.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Metsera Inc                               | Metsera Inc                               | CUSIP: 59267L107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     58679 | NS      | $1669417.55   | 0.23%             |  |  |  | No            |                  1 | On Loan: —       |
| Amicus Therapeutics Inc                   | Amicus Therapeutics Inc                   | CUSIP: 03152W109<br>LEI: 549300MRD1SMUTNBPQ53 | Long             | EC               | CORP              | US        |    832160 | NS      | $4768276.80   | 0.67%             |  |  |  | No            |                  1 | On Loan: No      |
| StepStone Group Inc                       | StepStone Group Inc                       | CUSIP: 85914M107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    218207 | NS      | $12110488.50  | 1.69%             |  |  |  | No            |                  1 | On Loan: No      |
| PROCEPT BioRobotics Corp                  | PROCEPT BioRobotics Corp                  | CUSIP: 74276L105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     47292 | NS      | $2724019.20   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Q2 Holdings Inc                           | Q2 Holdings Inc                           | CUSIP: 74736L109<br>LEI: 549300M9RKR9DZXWS696 | Long             | EC               | CORP              | US        |     95826 | NS      | $8968355.34   | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| TopBuild Corp                             | TopBuild Corp                             | CUSIP: 89055F103<br>LEI: 5493007YSKHOL4RWII46 | Long             | EC               | CORP              | US        |     31796 | NS      | $10293637.04  | 1.44%             |  |  |  | No            |                  1 | On Loan: No      |
| DigitalBridge Group Inc                   | DigitalBridge Group Inc                   | CUSIP: 25401T603<br>LEI: 549300XG87L902AGBO89 | Long             | EC               | CORP              | US        |    499176 | NS      | $5166471.60   | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Annexon Inc                               | Annexon Inc                               | CUSIP: 03589W102<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    228352 | NS      | $548044.80    | 0.08%             |  |  |  | No            |                  1 | On Loan: No      |
| Onto Innovation Inc                       | Onto Innovation Inc                       | CUSIP: 683344105<br>LEI: 254900RXZVN73CHOO062 | Long             | EC               | CORP              | US        |     58320 | NS      | $5886237.60   | 0.82%             |  |  |  | No            |                  1 | On Loan: No      |
| Corsair Gaming Inc                        | Corsair Gaming Inc                        | CUSIP: 22041X102<br>LEI: 549300Y7YT18L8G0H525 | Long             | EC               | CORP              | US        |    463314 | NS      | $4369051.02   | 0.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Karman Holdings Inc                       | Karman Holdings Inc                       | CUSIP: 485924104<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     88040 | NS      | $4434574.80   | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-07-15

**Name of Applicant:** MFS VARIABLE INSURANCE TRUST

**Signature:** James Byrne

**Name of Signer:** James Byrne

**Title:** Assistant Treasurer