# EDGAR Filing Document

**Accession Number:** 0000756913
**File Stem:** 0001193125-25-314146
**Filing Date:** 2025-12
**Character Count:** 4736
**Document Hash:** 3c8f8b46c22ee9581c6390164f69bc2d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-314146.hdr.sgml**: 20251210

**ACCESSION NUMBER**: 0001193125-25-314146

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20251210

**DATE AS OF CHANGE**: 20251210

**EFFECTIVENESS DATE**: 20251210

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** JOHN HANCOCK VARIABLE INSURANCE TRUST
- **CENTRAL INDEX KEY:** 0000756913

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0630

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-94157
- **FILM NUMBER:** 251561904

**BUSINESS ADDRESS:**
- **STREET 1:** C/O JOHN HANCOCK FUNDS
- **STREET 2:** 200 BERKELEY STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116
- **BUSINESS PHONE:** 617-663-3000

**MAIL ADDRESS:**
- **STREET 1:** C/O JOHN HANCOCK FUNDS
- **STREET 2:** 200 BERKELEY STREET
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** JOHN HANCOCK TRUST
- **DATE OF NAME CHANGE:** 20050124

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MANUFACTURERS INVESTMENT TRUST
- **DATE OF NAME CHANGE:** 19971022

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NASL SERIES FUND INC
- **DATE OF NAME CHANGE:** 19881030

## Series and Classes Contracts Data

### Health Sciences Trust (Series ID: S000008239)

---

|  |  |  |
|:---|:---|:---|
| Class Name | Ticker Symbol | Class ID   |
| NAV        | JAFMX         | C000022442 |
| Series I   | JEHSX         | C000022443 |
| Series II  | JAFKX         | C000022444 |

---

## Series and Classes Contracts Data

### Health Sciences Trust (Series ID: S000008239)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000022442 | NAV          | JAFMX           |
| C000022443 | Series I     | JEHSX           |
| C000022444 | Series II    | JAFKX           |

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

Prospectus Supplement

**John Hancock Variable Insurance Trust** <br>**Health Sciences Trust (the fund)**

**Supplement dated December 10, 2025 to the current Prospectus, as may be supplemented (the Prospectus)**

Effective April 1, 2026 (the Effective Date), Jeff Holford will be added as a portfolio manager of the fund. Ziad Bakri will continue as a portfolio manager of the fund, and together with Jeff Holford will be jointly and primarily responsible for the day-to-day management of the fund's portfolio. Accordingly, as of the Effective Date, the following information is added under the heading "Portfolio management" in the "Fund summary" section for the fund:

**Jeff Holford** <br>*Vice President* <br>Managed fund since 2026

Also as of the Effective Date, the information in the "Subadvisors and Portfolio Managers" section of the Prospectus under the heading "T. Rowe Price Associates, Inc. ("T. Rowe Price")" is amended to add Jeff Holford as a portfolio manager of the fund within the table of portfolio managers specific to the fund, as well as to include the below in the bulleted list of the portfolio managers below the table:

● *Jeff Holford.* Vice President; joined T. Rowe Price in 2018.

In addition, effective July 1, 2026, Ziad Bakri will no longer serve as a portfolio manager of the fund. Jeff Holford will continue as portfolio manager of the fund, and will be primarily responsible for the day-to-day management of the fund's portfolio. Accordingly, as of July 1, 2026, all references to Mr. Bakri will be removed from the Prospectus.

*You should read this supplement in conjunction with the Prospectus and retain it for your future reference.*

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![](g75586jh_blk.jpg)

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

Statement of Additional Information Supplement

**John Hancock Variable Insurance Trust** <br>**Health Sciences Trust (the fund)** 

**Supplement dated December 10, 2025 to the current Statement of Additional Information, as may be supplemented (the SAI)**

Effective April 1, 2026, Jeff Holford will be added as a portfolio manager of the fund. Ziad Bakri will continue as a portfolio manager of the fund, and together with Jeff Holford will be jointly and primarily responsible for the day-to-day management of the fund's portfolio.

In addition, effective July 1, 2026, Ziad Bakri will no longer serve as a portfolio manager of the fund. Jeff Holford will continue as portfolio manager of the fund, and will be primarily responsible for the day-to-day management of the fund's portfolio. Accordingly, as of July 1, 2026, all references to Mr. Bakri will be removed from the SAI.

*You should read this supplement in conjunction with the SAI and retain it for your future reference.*

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