# EDGAR Filing Document

**Accession Number:** 0000855396
**File Stem:** 0000930413-26-000408
**Filing Date:** 2026-2
**Character Count:** 10179
**Document Hash:** 2299153cbb7009ab9c411a2b4ed00882
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000930413-26-000408.hdr.sgml**: 20260212

**ACCESSION NUMBER**: 0000930413-26-000408

**CONFORMED SUBMISSION TYPE**: 485BXT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260212

**DATE AS OF CHANGE**: 20260212

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LORD ABBETT SERIES FUND INC
- **CENTRAL INDEX KEY:** 0000855396

**ORGANIZATION NAME:**
- **EIN:** 133536969
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-05876
- **FILM NUMBER:** 26625243

**BUSINESS ADDRESS:**
- **STREET 1:** 30 HUDSON STREET
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302
- **BUSINESS PHONE:** 201-827-2000

**MAIL ADDRESS:**
- **STREET 1:** 30 HUDSON STREET
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LORD ABBETT SERIES FUND INC
- **CENTRAL INDEX KEY:** 0000855396

**ORGANIZATION NAME:**
- **EIN:** 133536969
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-31072
- **FILM NUMBER:** 26625242

**BUSINESS ADDRESS:**
- **STREET 1:** 30 HUDSON STREET
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302
- **BUSINESS PHONE:** 201-827-2000

**MAIL ADDRESS:**
- **STREET 1:** 30 HUDSON STREET
- **CITY:** JERSEY CITY
- **STATE:** NJ
- **ZIP:** 07302

## Series and Classes Contracts Data

### Short Duration Income Portfolio (Series ID: S000045029)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000139705 | Class VC     |  |
| C000272081 | Class I      |  |

**As filed with the U.S. Securities and Exchange Commission on February 12, 2026**

Securities Act File No. 033-31072

Investment Company Act File No. 811-05876

**UNITED STATES<br> SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM N-1A**

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| | |
|:---|:---|
| **REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933** | **X** |
| **Pre-Effective Amendment No.** | |
| **Post-Effective Amendment No. 66** | **X** |
| and/or |  |
| **REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940** | **X** |
| **Amendment No. 67** | **X** |

---

**<u>LORD ABBETT SERIES FUND, INC.</u>**

(Exact Name of Registrant as Specified in Charter)<br>

30 Hudson Street, Jersey City, New Jersey 07302-4804<br> (Address of Principal Executive Office) (Zip Code)

<u>Registrant's Telephone Number, including Area Code: (888) 522-2388<br></u> 

<br> Brooke A. Fapohunda, Esq.

Vice President, Secretary and Chief Legal Officer<br> <u>30 Hudson Street, Jersey City, New Jersey 07302-4804</u><br> (Name and Address of Agent for Service)<br>

It is proposed that this filing will become effective (check appropriate box):

---

| | |
|:---|:---|
| <u>___</u> | immediately upon filing pursuant to paragraph (b) |
| <u>X</u> | on March 13, 2026 pursuant to paragraph (b) |
| <u>___</u> | 60 days after filing pursuant to paragraph (a)(1) |
| <u>___</u> | on (date) pursuant to paragraph (a)(1) |
| <u>___</u> | 75 days after filing pursuant to paragraph (a)(2) |
| <u>___</u> | on (date) pursuant to paragraph (a)(2) of Rule 485 |
| If appropriate, check the following box: | If appropriate, check the following box: |
| <u>X</u> | This post-effective amendment designates a new effective date for a previously filed post-effective amendment. |

---

**EXPLANATORY NOTE**

This Post-Effective Amendment No. 66 to the Registrant's Registration Statement on Form N-1A is being filed pursuant to paragraph (b)(1)(iii) of Rule 485 under the Securities Act of 1933, as amended (the "Securities Act"), solely for the purpose of designating March 13, 2026 as the new effective date of Post-Effective Amendment No. 65, which was filed on December 18, 2025 pursuant to paragraph (a) of Rule 485 under the Securities Act, relating to Lord Abbett Short Duration Income Portfolio. This Post-Effective Amendment No. 66 incorporates by reference the information relating to Lord Abbett Short Duration Income Portfolio contained in [Parts A, B, and C of Post-Effective Amendment No. 65.](https://www.sec.gov/Archives/edgar/data/855396/000093041325003708/c114698_485apos.htm)

This filing relates solely to Lord Abbett Short Duration Income Portfolio. No information contained herein is intended to amend or supersede any prior filing relating to any other series of the Registrant.

**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act of 1933, as amended, and has duly caused this Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Jersey City, and State of New Jersey on the 12th day of February, 2026.

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| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;**LORD ABBETT SERIES FUND, INC.** | &nbsp;&nbsp;**LORD ABBETT SERIES FUND, INC.** | &nbsp;&nbsp;**LORD ABBETT SERIES FUND, INC.** | &nbsp;&nbsp;**LORD ABBETT SERIES FUND, INC.** |
| &nbsp;&nbsp;BY: <u>/s/ Brooke A. Fapohunda</u> | &nbsp;&nbsp;BY: <u>/s/ Brooke A. Fapohunda</u> | &nbsp;&nbsp;BY: <u>/s/ Brooke A. Fapohunda</u> | &nbsp;&nbsp;BY: <u>/s/ Brooke A. Fapohunda</u> |
| &nbsp;&nbsp;Brooke A. Fapohunda | &nbsp;&nbsp;Brooke A. Fapohunda | &nbsp;&nbsp;Brooke A. Fapohunda | &nbsp;&nbsp;Brooke A. Fapohunda |
| &nbsp;&nbsp;Vice President, Secretary and <br> Chief Legal Officer | &nbsp;&nbsp;Vice President, Secretary and <br> Chief Legal Officer | &nbsp;&nbsp;Vice President, Secretary and <br> Chief Legal Officer | &nbsp;&nbsp;Vice President, Secretary and <br> Chief Legal Officer |
| &nbsp;&nbsp;BY: <u>/s/ Michael J. Hebert</u> | &nbsp;&nbsp;BY: <u>/s/ Michael J. Hebert</u> | &nbsp;&nbsp;BY: <u>/s/ Michael J. Hebert</u> | &nbsp;&nbsp;BY: <u>/s/ Michael J. Hebert</u> |
| &nbsp;&nbsp;Michael J. Hebert | &nbsp;&nbsp;Michael J. Hebert | &nbsp;&nbsp;Michael J. Hebert | &nbsp;&nbsp;Michael J. Hebert |
| &nbsp;&nbsp;Principal Accounting Officer, Chief Financial <br> Officer and Treasurer | &nbsp;&nbsp;Principal Accounting Officer, Chief Financial <br> Officer and Treasurer | &nbsp;&nbsp;Principal Accounting Officer, Chief Financial <br> Officer and Treasurer | &nbsp;&nbsp;Principal Accounting Officer, Chief Financial <br> Officer and Treasurer |
| &nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated. | &nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated. | &nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated. | &nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated. |
| &nbsp;&nbsp;**Signatures** | &nbsp;&nbsp;**Signatures** | &nbsp;&nbsp;**Title** | &nbsp;&nbsp;**Date** |
| &nbsp;&nbsp;<u>Evelyn E. Guernsey\*</u> | &nbsp;&nbsp;<u>Evelyn E. Guernsey\*</u> | &nbsp;&nbsp;Chair and Director | &nbsp;&nbsp;February 12, 2026 |
| &nbsp;&nbsp;Evelyn E. Guernsey | &nbsp;&nbsp;Evelyn E. Guernsey |  |  |
| &nbsp;&nbsp;<u>Douglas B. Sieg\*</u> | &nbsp;&nbsp;<u>Douglas B. Sieg\*</u> | &nbsp;&nbsp;President, CEO, and Director | &nbsp;&nbsp;February 12, 2026 |
| &nbsp;&nbsp;Douglas B. Sieg | &nbsp;&nbsp;Douglas B. Sieg |  |  |
| &nbsp;&nbsp;<u>Kathleen M. Lutito\*</u> | &nbsp;&nbsp;<u>Kathleen M. Lutito\*</u> | &nbsp;&nbsp;Director | &nbsp;&nbsp;February 12, 2026 |
| &nbsp;&nbsp;Kathleen M. Lutito | &nbsp;&nbsp;Kathleen M. Lutito |  |  |
| &nbsp;&nbsp;<u>Peter McNamara\*</u> | &nbsp;&nbsp;<u>Peter McNamara\*</u> | &nbsp;&nbsp;Director | &nbsp;&nbsp;February 12, 2026 |
| &nbsp;&nbsp;Peter McNamara | &nbsp;&nbsp;Peter McNamara |  |  |
| &nbsp;&nbsp;<u>Karla M. Rabusch\*</u> | &nbsp;&nbsp;<u>Karla M. Rabusch\*</u> | &nbsp;&nbsp;Director | &nbsp;&nbsp;February 12, 2026 |
| &nbsp;&nbsp;Karla M. Rabusch | &nbsp;&nbsp;Karla M. Rabusch |  |  |
| &nbsp;&nbsp;<u>Lorin Patrick Taylor Radtke\*</u> | &nbsp;&nbsp;<u>Lorin Patrick Taylor Radtke\*</u> | &nbsp;&nbsp;Director | &nbsp;&nbsp;February 12, 2026 |
| &nbsp;&nbsp;Lorin Patrick Taylor Radtke | &nbsp;&nbsp;Lorin Patrick Taylor Radtke |  |  |
| &nbsp;&nbsp;<u>Leah Song Richardson\*</u> | &nbsp;&nbsp;<u>Leah Song Richardson\*</u> | &nbsp;&nbsp;Director | &nbsp;&nbsp;February 12, 2026 |
| &nbsp;&nbsp;Leah Song Richardson | &nbsp;&nbsp;Leah Song Richardson |  |  |
| &nbsp;&nbsp;<u>Mark A. Schmid\*</u> | &nbsp;&nbsp;<u>Mark A. Schmid\*</u> | &nbsp;&nbsp;Director | &nbsp;&nbsp;February 12, 2026 |
| &nbsp;&nbsp;Mark A. Schmid | &nbsp;&nbsp;Mark A. Schmid |  |  |
| &nbsp;&nbsp;\*BY: | &nbsp;&nbsp;/<u>s/ Brooke A. Fapohunda</u><br> Brooke A. Fapohunda<br> Attorney-in-Fact, signed pursuant to power of attorney filed in Post-Effective Amendment No. 94 to Lord Abbett Municipal Income Fund's Registration Statement on Form N-1A filed on January 28, 2026. Accession Number 0000930413-26-000270. | &nbsp;&nbsp;/<u>s/ Brooke A. Fapohunda</u><br> Brooke A. Fapohunda<br> Attorney-in-Fact, signed pursuant to power of attorney filed in Post-Effective Amendment No. 94 to Lord Abbett Municipal Income Fund's Registration Statement on Form N-1A filed on January 28, 2026. Accession Number 0000930413-26-000270. | &nbsp;&nbsp;/<u>s/ Brooke A. Fapohunda</u><br> Brooke A. Fapohunda<br> Attorney-in-Fact, signed pursuant to power of attorney filed in Post-Effective Amendment No. 94 to Lord Abbett Municipal Income Fund's Registration Statement on Form N-1A filed on January 28, 2026. Accession Number 0000930413-26-000270. |

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