# EDGAR Filing Document

**Accession Number:** 0000756913
**File Stem:** 0001193125-25-314150
**Filing Date:** 2025-12
**Character Count:** 2877
**Document Hash:** 87fe3a60d01ae55f0fee5a512abf58cf
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-314150.hdr.sgml**: 20251210

**ACCESSION NUMBER**: 0001193125-25-314150

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 2

**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:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-94157
- **FILM NUMBER:** 251561942

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

![](g948721jh_blk.jpg)

&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 Summary Prospectus, as may be supplemented (the Summary 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":

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

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 Summary Prospectus.

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

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