# EDGAR Filing Document

**Accession Number:** 0001053425
**File Stem:** 0001193125-26-154716
**Filing Date:** 2026-4
**Character Count:** 21179
**Document Hash:** 0dc746f08e7d560a6fa71eb8b9850190
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-154716.hdr.sgml**: 20260414

**ACCESSION NUMBER**: 0001193125-26-154716

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260414

**DATE AS OF CHANGE**: 20260414

**EFFECTIVENESS DATE**: 20260414

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** HARTFORD SERIES FUND INC
- **CENTRAL INDEX KEY:** 0001053425

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-45431
- **FILM NUMBER:** 26860548

**BUSINESS ADDRESS:**
- **STREET 1:** 690 LEE ROAD
- **CITY:** WAYNE
- **STATE:** PA
- **ZIP:** 19087
- **BUSINESS PHONE:** 610-386-4068

**MAIL ADDRESS:**
- **STREET 1:** 690 LEE ROAD
- **CITY:** WAYNE
- **STATE:** PA
- **ZIP:** 19087

## Series and Classes Contracts Data

### HARTFORD BALANCED HLS FUND (Series ID: S000003205)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000008596 | IA           | HADAX           |
| C000008597 | IB           | HAIBX           |

![](g102562sumbluecov24.gif)

April 30, 2026

**Summary Prospectus**

**Hartford Balanced HLS Fund** 

Class IA shares and Class IB shares of the Fund are closed to certain qualified pension and retirement plans. For more information, please see the section entitled "Further Information on the Funds - Purchase and Redemption of Fund Shares" in the Fund's statutory prospectus.

---

| | |
|:---|:---|
| **Class IA** | **Class IB** |
| HADAX | HAIBX |

---

Before you invest, you may want to review the Fund's prospectus, which contains more information about the Fund and its risks. You can find the Fund's prospectus, reports to shareholders, and other information about the Fund online at http://www.hartfordfunds.com/prospectuses.html#hls. You can also get this information at no cost by calling 1-888-843-7824 or request a copy of the prospectus by sending an e-mail to orders@mysummaryprospectus.com. The Fund's prospectus and statement of additional information dated April 30, 2026, each as may be amended, supplemented or restated, are incorporated by reference into this summary prospectus. The Fund's statement of additional information may be obtained, free of charge, in the same manner as the Fund's prospectus. This summary prospectus should be read together with your variable contract prospectus (or other disclosure document) or plan documents.

**INVESTMENT OBJECTIVE.** The Fund seeks long-term total return.

**YOUR EXPENSES.** The table below describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. **Please note that fees and expenses in this table and the example below do not include fees and expenses that will be applied at the variable contract level or by a qualified pension or retirement plan and would be higher if such fees and expenses were included.** You should review your variable contract prospectus (or other disclosure document) or plan documents for more information on those fees and expenses.

**Annual Fund Operating Expenses** (expenses that you pay each year as a percentage of the value of your investment):

---

| | | |
|:---|:---|:---|
| Share Classes | IA | IB |
| Management fees | 0.63% | 0.63% |
| Distribution and/or service (12b-1) fees |  | 0.25% |
| Other expenses | 0.03% | 0.03% |
| Total annual fund operating expenses | 0.66% | 0.91% |

---

**Example.** The example below is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

&nbsp;&nbsp;&nbsp;&nbsp;<sup>●</sup>

You invest $10,000

&nbsp;&nbsp;&nbsp;&nbsp;<sup>●</sup>

Your investment has a 5% return each year

&nbsp;&nbsp;&nbsp;&nbsp;<sup>●</sup>

The Fund's operating expenses remain the same

&nbsp;&nbsp;&nbsp;&nbsp;<sup>●</sup>

You reinvest all dividends and distributions

Your actual costs may be higher or lower. Based on these assumptions, you would pay the following expenses whether or not you were to redeem your investment at the end of each time period indicated:

---

| | | | | |
|:---|:---|:---|:---|:---|
| Share Classes | Year 1 | Year 3 | Year 5 | Year 10 |
| IA | &nbsp;&nbsp;&nbsp; $67 | &nbsp;&nbsp;&nbsp; $211 | &nbsp;&nbsp;&nbsp; $368 | &nbsp;&nbsp;&nbsp; $822 |
| IB | &nbsp;&nbsp;&nbsp; $93 | &nbsp;&nbsp;&nbsp; $290 | &nbsp;&nbsp;&nbsp; $504 | &nbsp;&nbsp;&nbsp; $1120 |

---

**Portfolio Turnover.** The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the fiscal year ended December 31, 2025, the Fund's portfolio turnover rate was 66% of the average value of its portfolio (excluding to be announced (TBA) roll transactions). If TBA roll transactions were included, the Fund's portfolio turnover rate would have been 67% of the average value of its portfolio.

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**PRINCIPAL INVESTMENT STRATEGY.** The Fund seeks its investment objective by allocating its assets among equity securities, debt securities, and money market instruments. Wellington Management Company LLP ("Wellington Management"), the Fund's sub-adviser, targets an allocation between 50% and 70% of the Fund's net assets in equity securities and 30% to 50% of Fund's net assets in debt securities and cash instruments. The Fund will not normally hold more than 10% in cash or cash equivalents. The equity portion of the Fund may invest in stocks with a broad range of market capitalizations, but tends to focus on large capitalization companies with market capitalizations similar to those of companies in the S&P 500 Index. Wellington Management evaluates securities using fundamental analysis. Based on market or economic conditions, the equity portion of the Fund may, through its stock selection process, focus in one or more sectors of the market. The debt securities (other than money market instruments) in which the Fund invests include securities issued or guaranteed by the United States government, its agencies, or its instrumentalities, and other debt securities rated investment grade, including corporate bonds, commercial and residential mortgage-backed securities (including securities acquired or sold in the TBA market), asset-backed securities, and municipal bonds, or if unrated, securities deemed by Wellington Management to be of comparable quality. The Fund is not restricted to any specific maturity or duration term. The Fund may invest up to 20% of its net assets in securities of foreign issuers and non-dollar securities.

**PRINCIPAL RISKS.** The principal risks of investing in the Fund are described below. When you sell your shares they may be worth more or less than what you paid for them, which means that you could lose money as a result of your investment. **An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.** As with any fund, there is no guarantee that the Fund will achieve its investment objective.

**Market Risk –** Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Securities of a company may decline in value due to its financial prospects and activities, including certain operational impacts, such as data breaches and cybersecurity attacks. Securities may also decline in value due to general market and economic movements and trends, including adverse changes to credit markets, or as a result of other events (or threat thereof), such as geopolitical events, natural disasters, or widespread pandemics (such as COVID-19) or other adverse public health developments.

**Asset Allocation Risk –** The risk that if the Fund's strategy for allocating assets among different asset classes does not work as intended, the Fund may not achieve its objective or may underperform other funds with similar investment strategies.

**Equity Risk –** The risk that the price of equity or equity related securities may decline due to changes in a company's financial condition and overall market and economic conditions.

**Large Cap Securities Risk –** The securities of large market capitalization companies may underperform other segments of the market because such companies may be less responsive to competitive challenges and opportunities and may be unable to attain high growth rates during periods of economic expansion.

**Credit Risk –** Credit risk is the risk that the issuer of a security or other instrument will not be able to make principal and interest payments when due. Changes in an issuer's financial strength, credit rating or the market's perception of an issuer's creditworthiness may also affect the value of the Fund's investment in that issuer. The degree of credit risk depends on both the financial condition of the issuer and the terms of the obligation. Periods of market volatility may increase credit risk.

**Interest Rate Risk –** The risk that your investment may go down in value when interest rates rise, because when interest rates rise, the prices of bonds and fixed rate loans fall. A wide variety of factors can cause interest rates to rise, including central bank monetary policies and inflation rates. Generally, the longer the maturity of a bond or fixed rate loan, the more sensitive it is to this risk. Falling interest rates also create the potential for a decline in the Fund's income. These risks are greater during periods of rising inflation. Volatility in interest rates and in fixed income markets may increase the risk that the Fund's investment in fixed income securities will go down in value. Actions taken by the Federal Reserve Board or foreign central banks to stimulate or stabilize economic growth, such as decreases or increases in short-term interest rates, may adversely affect markets, which could, in turn, negatively impact Fund performance.

**Active Investment Management Risk –** The risk that, if the sub-adviser's investment strategy does not perform as expected, the Fund could underperform its peers or lose money. Although the sub-adviser considers several factors when making investment decisions, the sub-adviser may not evaluate every factor prior to investing in a company or issuer, and the sub-adviser may determine that certain factors are more significant than others.

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**Foreign Investments Risk –** Investments in foreign securities may be riskier, more volatile, and less liquid than investments in U.S. securities. Differences between the U.S. and foreign regulatory regimes and securities markets, including the less stringent investor protection, less stringent accounting, corporate governance, financial reporting and disclosure standards of some foreign markets, as well as political and economic developments in foreign countries and regions and the U.S. (including the imposition of sanctions, tariffs, or other governmental restrictions), may affect the value of the Fund's foreign investments. Changes in currency exchange rates may also adversely affect the Fund's foreign investments.

**Currency Risk –** The risk that the value of the Fund's investments in foreign securities or currencies will be affected by the value of the applicable currency relative to the U.S. dollar. When the Fund sells a foreign currency or foreign currency denominated security, its value may be worth less in U.S. dollars even if the investment increases in value in its local market. U.S. dollar-denominated securities of foreign issuers may also be affected by currency risk, as the revenue earned by issuers of these securities may also be affected by changes in the issuer's local currency.

**U.S. Government Securities Risk –** Treasury obligations may differ in their interest rates, maturities, times of issuance and other characteristics. Securities backed by the U.S. Treasury or the full faith and credit of the United States are guaranteed only as to the timely payment of interest and principal when held to maturity. Accordingly, the current market values for these securities will fluctuate with changes in interest rates. Obligations of U.S. Government agencies and authorities are supported by varying degrees of credit but generally are not backed by the full faith and credit of the U.S. Government. No assurance can be given that the U.S. Government will provide financial support to its agencies and authorities if it is not obligated by law to do so. In addition, the value of U.S. Government securities may be affected by changes in the credit rating of the U.S. Government. U.S. Government securities are also subject to the risk that the U.S. Treasury will be unable to meet its payment obligations.

**Mortgage-Related and Asset-Backed Securities Risk –** Mortgage-related and asset-backed securities represent interests in "pools" of mortgages or other assets, including consumer loans or receivables held in trust. These mortgage-related or asset-backed securities are subject to credit risk, interest rate risk, "prepayment risk" (the risk that borrowers will repay a loan more quickly in periods of falling interest rates) and "extension risk" (the risk that borrowers will repay a loan more slowly in periods of rising interest rates). If the Fund invests in mortgage-related or asset-backed securities that are subordinated to other interests in the same mortgage or asset pool, the Fund may only receive payments after the pool's obligations to other investors have been satisfied. An unexpectedly high rate of defaults on the mortgages held by a mortgage pool may limit substantially the pool's ability to make payments of principal or interest to the Fund, reducing the values of those securities or in some cases rendering them worthless. The risk of such defaults is generally higher in the case of mortgage pools that include so-called "subprime" mortgages. The Fund may purchase or sell mortgage-backed securities on a delayed delivery or forward commitment basis through the TBA market. TBA transactions may result in a higher portfolio turnover rate.

**Sector Risk –** To the extent the Fund invests more heavily in a particular sector or sectors, its performance will be especially sensitive to developments that significantly affect those sectors. Individual sectors may be more volatile, and may perform differently, from the broader market.

**Large Shareholder Transaction Risk –** The Fund may experience adverse effects when certain large shareholders redeem or purchase large amounts of shares of the Fund. Such redemptions may cause the Fund to sell securities at times when it would not otherwise do so or borrow money (at a cost to the Fund), which may negatively impact the Fund's performance and liquidity. Similarly, large purchases may adversely affect the Fund's performance to the extent that the Fund is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also increase transaction costs.

The Fund is subject to certain other risks. For more information regarding risks and investments, please see "Additional Information Regarding Investment Strategies and Risks" and "More Information About Risks" in the Fund's statutory prospectus.

**PAST PERFORMANCE.** The performance information below provides some indication of the risks of investing in the Fund. Keep in mind that past performance does not indicate future results. Updated performance information is available at hartfordfunds.com. The returns for the Fund in the bar chart and table:

&nbsp;&nbsp;&nbsp;&nbsp;<sup>●</sup>

Assume reinvestment of all dividends and distributions

&nbsp;&nbsp;&nbsp;&nbsp;<sup>●</sup>

Would be lower if the effect of sales charges or other fees that may be applied at the contract or plan level were included

&nbsp;&nbsp;&nbsp;&nbsp;<sup>●</sup>

Reflect fee waivers, if any. Absent any applicable waivers, performance would have been lower.

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The bar chart:

&nbsp;&nbsp;&nbsp;&nbsp;<sup>●</sup>

Shows how the Fund's total return has varied from year to year

&nbsp;&nbsp;&nbsp;&nbsp;<sup>●</sup>

Shows the returns of Class IA shares. Returns for Class IB shares differ only to the extent that the classes do not have the same expenses.

**Total returns by calendar year**

![](g102562hfeibarchart.jpg)

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| | | |
|:---|:---|:---|
| **During the periods shown in the chart above:** | **Returns** | **Quarter Ended** |
| **Best Quarter Return** | &nbsp;&nbsp; 13.68% | June 30, 2020 |
| **Worst Quarter Return** | &nbsp;&nbsp; -14.50% | March 31, 2020 |

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**Average Annual Total Returns.** The table below shows returns for the Fund over time compared to those of the Fund's blended benchmark and the indices that comprise the blended benchmark. The blended benchmark serves as the Fund's performance index because the Fund's investment manager believes it is more representative of the Fund's investment strategy. The S&P 500 Index, one of the indices included in the Fund's blended benchmark, serves as the Fund's regulatory index and provides a broad measure of market performance.

**Average annual total returns for periods ending December 31, 2025** 

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| | | | |
|:---|:---|:---|:---|
| Share Classes | 1 Year | 5 Years | 10 Years |
| Class IA | &nbsp;&nbsp; 12.14% | &nbsp;&nbsp;&nbsp;&nbsp; 8.20% | &nbsp;&nbsp;&nbsp;&nbsp; 8.97% |
| Class IB | &nbsp;&nbsp; 11.86% | &nbsp;&nbsp;&nbsp;&nbsp; 7.93% | &nbsp;&nbsp;&nbsp;&nbsp; 8.70% |
| 60% S&P 500 Index/ 35% Bloomberg US Government/Credit Bond Index/ 5% ICE BofA US <br> 3-Month Treasury Bill Index\* <br>| &nbsp;&nbsp; 13.38% | &nbsp;&nbsp;&nbsp;&nbsp; 8.59% | &nbsp;&nbsp;&nbsp;&nbsp; 9.86% |
| S&P 500 Index (reflects no deduction for fees, expenses or taxes) | &nbsp;&nbsp; 17.88% | &nbsp;&nbsp;&nbsp;&nbsp; 14.42% | &nbsp;&nbsp;&nbsp;&nbsp; 14.82% |
| Bloomberg US Government/Credit Bond Index (reflects no deduction for fees, expenses or <br> taxes)<br>| &nbsp;&nbsp; 6.88% | &nbsp;&nbsp;&nbsp;&nbsp; -0.59% | &nbsp;&nbsp;&nbsp;&nbsp; 2.16% |
| ICE BofA US 3-Month Treasury Bill Index (reflects no deduction for fees, expenses or taxes) | &nbsp;&nbsp; 4.18% | &nbsp;&nbsp;&nbsp;&nbsp; 3.17% | &nbsp;&nbsp;&nbsp;&nbsp; 2.18% |

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\*

The blended benchmark is calculated by Hartford Funds Management Company, LLC.

**MANAGEMENT.** The Fund's investment manager is Hartford Funds Management Company, LLC. The Fund's sub-adviser is Wellington Management.

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| | | |
|:---|:---|:---|
| Portfolio Manager | Title | &nbsp;&nbsp;&nbsp; Involved with<br> Fund Since<br>|
| Adam H. Illfelder, CFA | Senior Managing Director and Equity Portfolio Manager | 2012 |
| Loren L. Moran, CFA | Senior Managing Director and Fixed Income Portfolio Manager | 2014 |
| Matthew C. Hand, CFA | Senior Managing Director and Equity Portfolio Manager | 2012 |

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**PURCHASE AND SALE OF FUND SHARES.** Class IA shares and Class IB shares of the Fund generally may only be purchased or redeemed through variable contracts and qualified pension plans or retirement plans. Class IA shares and Class IB shares of the Fund are closed to certain qualified pension and retirement plans. For more information, please see the section entitled "Further Information on the Funds - Purchase and Redemption of Fund Shares" in the Fund's statutory prospectus.

Class IA shares and Class IB shares of the Fund do not have any initial or subsequent investment minimums. Any initial or subsequent investment requirements and redemption procedures are governed by the applicable variable contract or plan through which you invest.

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**TAX INFORMATION.** Under current law, owners of variable contracts and qualified pension or retirement plan participants that have invested in the Fund are not subject to federal income tax on Fund earnings and distributions or on gains realized upon the sale or redemption of Fund shares until such amounts are withdrawn from the variable contract or pension or retirement plan. You should review your variable contract prospectus (or other disclosure document) or plan documents for more information.

**PAYMENTS TO BROKER-DEALERS AND OTHER FINANCIAL INTERMEDIARIES.** The Fund and its related companies may make payments to insurance companies (or their affiliates), plan sponsors and other financial intermediaries for distribution and/or other services. These payments may create a conflict of interest by influencing the financial intermediary and its employees to include the Fund as an investment option or to recommend the Fund over another investment option. Ask your financial intermediary or visit your financial intermediary's website for more information.

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8 April 30, 2026 HLSSUM-B_04302026

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