# EDGAR Filing Document

**Accession Number:** 0000906185
**File Stem:** 0001193125-23-019432
**Filing Date:** 2023-1
**Character Count:** 6825
**Document Hash:** d2265c9987a8b582541734a54c5150b9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-019432.hdr.sgml**: 20230131

**ACCESSION NUMBER**: 0001193125-23-019432

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230131

**DATE AS OF CHANGE**: 20230130

**EFFECTIVENESS DATE**: 20230131

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** JANUS ASPEN SERIES
- **CENTRAL INDEX KEY:** 0000906185
- **IRS NUMBER:** 841235540
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-63212
- **FILM NUMBER:** 23569960

**BUSINESS ADDRESS:**
- **STREET 1:** 151 DETROIT STREET
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80206
- **BUSINESS PHONE:** 3033333863

**MAIL ADDRESS:**
- **STREET 1:** 151 DETROIT STREET
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80206

## Series and Classes Contracts Data

### Janus Henderson Balanced Portfolio (Series ID: S000010394)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Service Shares       | nan           | C000028716 |
| Institutional Shares | JABLX         | C000028717 |

---

### Janus Henderson Research Portfolio (Series ID: S000010395)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Service Shares       | nan           | C000028718 |
| Institutional Shares | JAGRX         | C000028719 |

---

### Janus Henderson Mid Cap Value Portfolio (Series ID: S000010397)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Service Shares       | nan           | C000028722 |
| Institutional Shares | JAMVX         | C000028723 |

---

### Janus Henderson Global Research Portfolio (Series ID: S000010402)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Service Shares       | nan           | C000028728 |
| Institutional Shares | JAWGX         | C000028730 |

---

### Janus Henderson Global Technology and Innovation Portfolio (Series ID: S000010408)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Service Shares       | nan           | C000028740 |
| Institutional Shares | JGLTX         | C000028742 |

---

### Janus Henderson Overseas Portfolio (Series ID: S000010410)

---

|  |  |  |
|:---|:---|:---|
| Class Name           | Ticker Symbol | Class ID   |
| Service Shares       | nan           | C000028745 |
| Institutional Shares | JAIGX         | C000028747 |

---

## Series and Classes Contracts Data

### Janus Henderson Balanced Portfolio (Series ID: S000010394)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000028716 | Service Shares       |  |
| C000028717 | Institutional Shares | JABLX           |

### Janus Henderson Research Portfolio (Series ID: S000010395)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000028718 | Service Shares       |  |
| C000028719 | Institutional Shares | JAGRX           |

### Janus Henderson Mid Cap Value Portfolio (Series ID: S000010397)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000028722 | Service Shares       |  |
| C000028723 | Institutional Shares | JAMVX           |

### Janus Henderson Global Research Portfolio (Series ID: S000010402)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000028728 | Service Shares       |  |
| C000028730 | Institutional Shares | JAWGX           |

### Janus Henderson Global Technology and Innovation Portfolio (Series ID: S000010408)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000028740 | Service Shares       |  |
| C000028742 | Institutional Shares | JGLTX           |

### Janus Henderson Overseas Portfolio (Series ID: S000010410)

| Class ID   | Class Name           | Ticker Symbol   |
|:---|:---|:---|
| C000028745 | Service Shares       |  |
| C000028747 | Institutional Shares | JAIGX           |

## Janus Aspen Series
Janus Henderson Balanced Portfolio

Janus Henderson Global Research Portfolio

Janus Henderson Global Technology and Innovation Portfolio

Janus Henderson Mid Cap Value Portfolio

Janus Henderson Overseas Portfolio

Janus Henderson Research Portfolio

(each, a "Portfolio" and collectively, the "Portfolios")

Supplement dated January 31, 2023

to Currently Effective Prospectuses

Effective immediately, the prospectuses for the Portfolios are amended as follows:

1. Under **"Additional Investment Strategies and General Portfolio Policies"** in the **Additional Information about the Portfolios** section of the Portfolios' prospectuses, the following paragraph is added:

**Consideration of ESG Factors** 

The portfolio managers and/or investment personnel of **Janus Henderson Global Research Portfolio, Janus Henderson Global Technology and Innovation Portfolio, Janus Henderson Mid Cap Value Portfolio, Janus Henderson Overseas Portfolio, Janus Henderson Research Portfolio,** and the equity portion of **Janus Henderson Balanced Portfolio** may consider one or more environmental, social, or governance ("ESG") factors alongside other fundamental characteristics considered in the investment research process. In the portfolio managers' and/or investment personnel's view, ESG factors, along with other attributes relevant to fundamental analysis, could potentially impact investment risk and/or returns. The identification of an ESG risk factor will not necessarily exclude a particular security or sector that, in a portfolio manager's and/or investment personnel's view, is otherwise suitable for investment. To facilitate their assessment of ESG factors, the portfolio managers and/or investment personnel use a mix of third-party data and internally generated analyses and may engage directly with companies. ESG factors may or may not be relevant or considered for each and every investment decision depending on the portfolio managers' and/or investment personnel's perspective. The portfolio managers and/or investment personnel may assess the relevance of ESG factors to their fundamental research process differently across issuers, sectors, regions, and asset classes.

2. Under **"Risks of the Portfolios"** in the **Additional Information about the Portfolios** section of the Portfolios' prospectuses, the following paragraph is added:

***Portfolio Management Risk.*** The Portfolios are actively managed investment portfolios and are therefore subject to the risk that the investment strategies and research process employed for the Portfolios may fail to produce the intended results. A Portfolio may underperform its benchmark index or other mutual funds with similar investment objectives.

**Please retain this Supplement with your records.**