# EDGAR Filing Document

**Accession Number:** 0000898031
**File Stem:** 0001410368-25-042271
**Filing Date:** 2025-12
**Character Count:** 7308
**Document Hash:** 8d515ada286374f7cbd7ec478cd2f8f4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-042271.hdr.sgml**: 20251223

**ACCESSION NUMBER**: 0001410368-25-042271

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251031

**FILED AS OF DATE**: 20251223

**DATE AS OF CHANGE**: 20251223

**PERIOD START**: 20251031

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** LORD ABBETT SECURITIES TRUST
- **CENTRAL INDEX KEY:** 0000898031

**ORGANIZATION NAME:**
- **EIN:** 133712440
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-07538
- **FILM NUMBER:** 251599396

**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

### Lord Abbett Alpha Strategy Fund (Series ID: S000007139)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000019521 | Class I      | ALFYX           |
| C000019522 | Class A      | ALFAX           |
| C000019524 | Class C      | ALFCX           |
| C000054925 | Class F      | ALFFX           |
| C000054926 | Class R2     | ALFQX           |
| C000054927 | Class R3     | ALFRX           |
| C000155670 | Class R4     | ALFKX           |
| C000155671 | Class R5     | ALFTX           |
| C000155672 | Class R6     | ALFVX           |
| C000184531 | Class F3     | ALFOX           |

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** LORD ABBETT SECURITIES TRUST

- **b. Investment Company Act file number:** 811-07538

- **c. CIK number of Registrant:** 0000898031

- **d. LEI of Registrant:** 5493002HV0D15KTWO412

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 30 HUDSON STREET

  - **City:** JERSEY CITY

  - **State:** NJ

  - **Foreign country:** US

  - **Zip / Postal Code:** 07302

  - **Telephone number:** 201-827-2000

**Item A.2. Information about the Series.**

- **a. Name of Series:** Lord Abbett Alpha Strategy Fund

- **b. EDGAR series identifier (if any):** S000007139

- **c. LEI of Series:** 549300SWW68LOHCN3898

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2025-10-31

- **b. Date as of which information is reported:** 2025-10-31

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $613884264.78

**Total Liabilities:** $390455.28

**Net Assets:** $613493809.50

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000019521 | 3.83%                | 1.56%                | 0.17%                |
| Class ID C000019522 | 3.80%                | 1.52%                | 0.18%                |
| Class ID C000019524 | 3.76%                | 1.49%                | 0.05%                |
| Class ID C000054925 | 3.78%                | 1.57%                | 0.18%                |
| Class ID C000054926 | 3.77%                | 1.51%                | 0.11%                |
| Class ID C000054927 | 3.80%                | 1.49%                | 0.15%                |
| Class ID C000155670 | 3.81%                | 1.53%                | 0.14%                |
| Class ID C000155671 | 3.82%                | 1.56%                | 0.17%                |
| Class ID C000155672 | 3.83%                | 1.55%                | 0.20%                |
| Class ID C000184531 | 3.83%                | 1.55%                | 0.20%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $1186342.17              | $21532780.72                               |
| Month 2  | $1356776.92              | $8266991.96                                |
| Month 3  | $1780502.48              | $-641470.98                                |

### Schedule of Portfolio Investments

| Name                                         | Title                                        | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Lord Abbett Small Cap Value Fund             | Lord Abbett Small Cap Value Fund             | CUSIP: 543913800<br>LEI: 5493007UOPFNCNRUAX11 | Long             | EC               | RF                | US        |   5773647 | NS      | $118128818.13 | 19.26%            |  |  |  | No            |                  1 | On Loan: No      |
| Lord Abbett International Opportunities Fund | Lord Abbett International Opportunities Fund | CUSIP: 543915813<br>LEI: DJROU6QIURETNZO2HV24 | Long             | EC               | RF                | US        |   5257812 | NS      | $118931703.16 | 19.39%            |  |  |  | No            |                  1 | On Loan: No      |
| Lord Abbett Developing Growth Fund Inc       | Lord Abbett Developing Growth Fund Inc       | CUSIP: 544006505<br>LEI: 549300HWJ2W28SDTJF85 | Long             | EC               | RF                | US        |   3744564 | NS      | $130647822.54 | 21.30%            |  |  |  | No            |                  1 | On Loan: No      |
| Lord Abbett Value Opportunities Fund         | Lord Abbett Value Opportunities Fund         | CUSIP: 54400A506<br>LEI: 549300DSLIHMAFWXRD49 | Long             | EC               | RF                | US        |   5940262 | NS      | $118151819.71 | 19.26%            |  |  |  | No            |                  1 | On Loan: No      |
| Lord Abbett Micro Cap Growth Fund            | Lord Abbett Micro Cap Growth Fund            | CUSIP: 54400V104<br>LEI: 549300VL8AMXUES9JL76 | Long             | EC               | RF                | US        |   2730512 | NS      | $68508557.04  | 11.17%            |  |  |  | No            |                  1 | On Loan: No      |
| Lord Abbett Focused Small Cap Value Fund     | Lord Abbett Focused Small Cap Value Fund     | CUSIP: 54400W102<br>LEI: 549300TBYNRWTGRQG753 | Long             | EC               | RF                | US        |   2072235 | NS      | $59224467.10  | 9.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Fixed Income Clearing Corp                   | FIXED INC CLEARING CORP.REPO                 | CUSIP: 000000000<br>LEI: 549300H47WTHXPU08X20 | Long             | RA               | CORP              | US        |    266432 | PA      | $266432.05    | 0.04%             |  |  |  | No            |                  2 | On Loan: No      |

### Signature

**Date Signed:** 2025-11-14

**Name of Applicant:** LORD ABBETT SECURITIES TRUST

**Signature:** Michael Hebert

**Name of Signer:** Michael Hebert

**Title:** Chief Financial Officer