Honeywell International Inc

Lord Abbett
Quarterly Portfolio Holdings Report

Lord Abbett
Alpha Strategy Fund
Durable Growth Fund
Focused Growth Fund
Focused Large Cap Value Fund
Focused Small Cap Value Fund
Fundamental Equity Fund
Global Equity Research Fund
Growth Leaders Fund
Health Care Fund
International Equity Fund
International Opportunities Fund
International Value Fund
Micro Cap Growth Fund
Value Opportunities Fund

For the period ended January 31, 2021

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – ALPHA STRATEGY FUND January 31, 2021

Investments	Shares		Fair Value (000)
INVESTMENTS IN UNDERLYING FUNDS^(a)(b)99.99%

Lord Abbett Developing Growth Fund, Inc. - Class I^*(c)		4,109,788	$	167,022
Lord Abbett Securities Trust - Focused Small Cap Value Fund - Class I^(d)		3,022,501		82,393
Lord Abbett Securities Trust - International Opportunities Fund - Class I^(d)		8,091,863		157,872
Lord Abbett Securities Trust - Micro-Cap Growth Fund - Class I^*(d)		3,660,155		86,563
Lord Abbett Research Fund, Inc. - Small Cap Value Fund - Class I^(d)		8,534,423		163,605
Lord Abbett Securities Trust - Value Opportunities Fund - Class I^*(d)		7,882,711		158,285
Total Investments in Underlying Funds (cost $717,087,662)				815,740

Investments	Principal Amount (000)		Fair Value (000)
SHORT-TERM INVESTMENT 0.09%

Repurchase Agreement
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $731,200 of U.S. Treasury Note at 0.25% due 6/15/2023; value: $733,140; proceeds: $718,704 (cost $718,704)		$719	$	719
Total Investments in Securities 100.08% (cost $717,806,366)				816,459
Liabilities in Excess of Other Assets (0.08)%				(664	)
Net Assets 100.00%			$	815,795

*		Non-income producing security.
^(a)		Affiliated issuer.
^(b)		These investments offer daily redemptions.
^(c)		Fund investment objective is long-term growth of capital through a diversified and actively managed portfolio consisting of developing growth companies, many of which are traded over the counter.
^(d)		Fund investment objective is long-term capital appreciation.

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Investments in Underlying Funds	$	815,740	$	–	$	–	$	815,740
Short-Term Investment
Repurchase Agreement		–		719		–		719
Total	$	815,740	$	719	$	–	$	816,459

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each investment in Underlying Funds.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – DURABLE GROWTH FUND January 31, 2021

Investments	Shares		Fair Value (000)
COMMON STOCKS 99.23%

Aerospace & Defense 0.60%
CAE, Inc. (Canada)^(a)		38,607	$	871

Automobiles 1.63%
Tesla, Inc.*		2,978		2,363

Banks 0.84%
First Republic Bank		8,383		1,215

Beverages 1.74%
Brown-Forman Corp. Class B		10,037		719
Coca-Cola Co. (The)		37,273		1,795
Total				2,514

Biotechnology 1.97%
Amgen, Inc.		4,749		1,147
Seagen, Inc.*		4,214		692
Vertex Pharmaceuticals, Inc.*		4,412		1,011
Total				2,850

Capital Markets 0.67%
Moody’s Corp.		3,652		972

Chemicals 0.70%
Air Products & Chemicals, Inc.		3,775		1,007

Construction Materials 0.85%
Vulcan Materials Co.		8,277		1,234

Containers & Packaging 1.03%
Avery Dennison Corp.		4,940		745
Ball Corp.		8,446		744
Total				1,489

Entertainment 3.26%
Activision Blizzard, Inc.		11,748		1,069
Netflix, Inc.*		4,933		2,626
Walt Disney Co. (The)*		6,028		1,014
Total				4,709

Equity Real Estate Investment Trusts 1.48%
SBA Communications Corp.		7,941		2,134

Investments	Shares		Fair Value (000)
Food & Staples Retailing 0.81%
Walmart, Inc.		8,327	$	1,170

Health Care Equipment & Supplies 5.39%
Align Technology, Inc.*		2,904		1,526
Boston Scientific Corp.*		20,736		735
Danaher Corp.		7,380		1,755
DexCom, Inc.*		3,136		1,176
Intuitive Surgical, Inc.*		2,049		1,532
West Pharmaceutical Services, Inc.		3,547		1,062
Total				7,786

Health Care Providers & Services 0.30%
Guardant Health, Inc.*		2,763		430

Health Care Technology 0.30%
Veeva Systems, Inc. Class A*		1,574		435

Hotels, Restaurants & Leisure 1.52%
Airbnb, Inc. Class A*		1,941		356
Chipotle Mexican Grill, Inc.*		1,061		1,570
Hilton Worldwide Holdings, Inc.		2,699		274
Total				2,200

Household Products 0.32%
Church & Dwight Co., Inc.		5,473		462

Industrial Conglomerates 1.42%
Honeywell International, Inc.		5,661		1,106
Roper Technologies, Inc.		2,410		947
Total				2,053

Information Technology Services 9.35%
Fidelity National Information Services, Inc.		10,857		1,340
Genpact Ltd.		26,697		1,022
Global Payments, Inc.		5,443		961
Mastercard, Inc. Class A		11,121		3,518
PayPal Holdings, Inc.*		15,092		3,536
Twilio, Inc. Class A*		3,759		1,351
Visa, Inc. Class A		9,220		1,782
Total				13,510

2	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – DURABLE GROWTH FUND January 31, 2021

Investments	Shares		Fair Value (000)
Insurance 0.43%
RenaissanceRe Holdings Ltd.		4,147	$	624

Interactive Media & Services 10.07%
Alphabet, Inc. Class A*		3,933		7,187
Facebook, Inc. Class A*		23,422		6,050
Match Group, Inc.*		9,379		1,312
Total				14,549

Internet & Direct Marketing Retail 8.43%
Amazon.com, Inc.*		3,802		12,190

Leisure Products 0.45%
Peloton Interactive, Inc. Class A*		4,453		651

Life Sciences Tools & Services 1.37%
10X Genomics, Inc. Class A*		5,655		968
Repligen Corp.*		5,035		1,007
Total				1,975

Machinery 0.79%
Stanley Black & Decker, Inc.		6,603		1,146

Multi-Line Retail 0.72%
Dollar Tree, Inc.*		10,310		1,048

Personal Products 0.86%
Estee Lauder Cos., Inc. (The) Class A		5,267		1,246

Pharmaceuticals 4.23%
AstraZeneca plc ADR		16,678		844
Bristol-Myers Squibb Co.		19,617		1,205
Eli Lilly and Co.		10,500		2,184
Zoetis, Inc.		12,188		1,880
Total				6,113

Professional Services 0.52%
CoStar Group, Inc.*		838		754

Investments	Shares		Fair Value (000)
Road & Rail 2.40%
J.B. Hunt Transport Services, Inc.		8,854	$	1,192
Norfolk Southern Corp.		4,695		1,111
Old Dominion Freight Line, Inc.		6,006		1,165
Total				3,468

Semiconductors & Semiconductor Equipment 7.48%
Analog Devices, Inc.		10,744		1,583
Lam Research Corp.		2,705		1,309
NVIDIA Corp.		5,767		2,996
NXP Semiconductors NV (Netherlands)^(a)		6,163		989
QUALCOMM, Inc.		19,892		3,109
Xilinx, Inc.		6,284		821
Total				10,807

Software 15.52%
DocuSign, Inc.*		4,104		956
Microsoft Corp.		52,290		12,129
RingCentral, Inc. Class A*		7,132		2,660
salesforce.com, Inc.*		13,811		3,115
ServiceNow, Inc.*		4,475		2,430
Splunk, Inc.*		6,877		1,135
Total				22,425

Specialty Retail 2.30%
Burlington Stores, Inc.*		7,187		1,789
Home Depot, Inc. (The)		5,684		1,539
Total				3,328

Technology Hardware, Storage & Peripheral 7.74%
Apple, Inc.		84,755		11,184

Textiles, Apparel & Luxury Goods 1.74%
NIKE, Inc. Class B		18,775		2,508
Total Common Stocks (cost $110,786,665)				143,420

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – DURABLE GROWTH FUND January 31, 2021

Investments	Principal Amount (000)		Fair Value (000)
SHORT-TERM INVESTMENT 0.69%

Repurchase Agreement
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $1,019,600 of U.S. Treasury Note at 0.25% due 06/15/2023; value: $1,022,305; proceeds: $1,002,212 (cost $1,002,212)		$1,002	$	1,002
Total Investments in Securities 99.92% (cost $111,788,877)				144,422
Other Assets in Excess of Liabilities 0.08%				109
Net Assets 100.00%			$	144,531

ADR		American Depositary Receipt.
*		Non-income producing security.
^(a)		Foreign security traded in U.S. dollars.

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Common Stocks	$	143,420	$	–	$	–	$	143,420
Short-Term Investment
Repurchase Agreement		–		1,002		–		1,002
Total	$	143,420	$	1,002	$	–	$	144,422

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

4	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – FOCUSED GROWTH FUND January 31, 2021

Investments	Shares		Fair Value (000)
COMMON STOCKS 97.86%

Aerospace & Defense 3.13%
Axon Enterprise, Inc.*		8,020	$	1,317

Automobiles 4.56%
Tesla, Inc.*		2,412		1,914

Biotechnology 4.51%
Iovance Biotherapeutics, Inc.*		9,651		423
TG Therapeutics, Inc.*		15,065		727
Turning Point Therapeutics, Inc.*		5,935		745
Total				1,895

Electrical Equipment 2.80%
Generac Holdings, Inc.*		4,779		1,178

Electronic Equipment, Instruments & Components 2.17%
Trimble, Inc.*		13,856		913

Entertainment 10.26%
Netflix, Inc.*		2,547		1,356
Roku, Inc.*		4,269		1,661
Walt Disney Co. (The)*		7,682		1,292
Total				4,309

Health Care Equipment & Supplies 7.46%
Align Technology, Inc.*		1,986		1,043
IDEXX Laboratories, Inc.*		1,855		888
Insulet Corp.*		4,493		1,201
Total				3,132

Hotels, Restaurants & Leisure 2.08%
DraftKings, Inc. Class A*		16,161		874

Information Technology Services 7.60%
PayPal Holdings, Inc.*		5,454		1,278
Shopify, Inc. Class A (Canada)*^(a)		726		797
Square, Inc. Class A*		5,171		1,117
Total				3,192

Investments	Shares		Fair Value (000)
Interactive Media & Services 8.77%
Alphabet, Inc. Class A*		903	$	1,650
Match Group, Inc.*		6,138		859
Snap, Inc. Class A*		22,216		1,176
Total				3,685

Internet & Direct Marketing Retail 8.12%
Amazon.com, Inc.*		712		2,283
MercadoLibre, Inc. (Argentina)*^(a)		635		1,130
Total				3,413

Road & Rail 3.60%
Uber Technologies, Inc.*		29,731		1,514

Semiconductors & Semiconductor Equipment 12.10%
Advanced Micro Devices, Inc.*		11,714		1,003
Enphase Energy, Inc.*		6,894		1,257
NVIDIA Corp.		2,862		1,487
QUALCOMM, Inc.		8,560		1,338
Total				5,085

Software 13.09%
Crowdstrike Holdings, Inc.
Class A*		4,384		946
Five9, Inc.*		6,521		1,084
Microsoft Corp.		9,265		2,149
RingCentral, Inc. Class A*		3,542		1,321
Total				5,500

Technology Hardware, Storage & Peripheral 5.67%
Apple, Inc.		18,043		2,381

Textiles, Apparel & Luxury Goods 1.94%
NIKE, Inc. Class B		6,087		813
Total Common Stocks (cost $33,869,972)				41,115

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – FOCUSED GROWTH FUND January 31, 2021

Investments	Principal Amount (000)		Fair Value (000)
SHORT-TERM INVESTMENT 0.99%

Repurchase Agreement
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $425,700 of U.S. Treasury Note at 0.25% due 6/15/2023; value: $426,829; proceeds: $418,407 (cost $418,407)		$418	$	418
Total Investments in Securities 98.85% (cost $34,288,379)				41,533
Other Assets in Excess of Liabilities 1.15%				483
Net Assets 100.00%			$	42,016

*		Non-income producing security.
^(a)		Foreign security traded in U.S. dollars.

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Common Stocks	$	41,115	$	–	$	–	$	41,115
Short-Term Investment
Repurchase Agreement		–		418		–		418
Total	$	41,115	$	418	$	–	$	41,533

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

6	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – FOCUSED LARGE CAP VALUE FUND January 31, 2021

Investments	Shares		Fair Value (000)
COMMON STOCKS 99.13%

Aerospace & Defense 2.93%
Raytheon Technologies Corp.		282,720	$	18,866

Auto Components 2.86%
Lear Corp.		121,867		18,373

Automobiles 3.04%
Harley-Davidson, Inc.		488,110		19,568

Banks 10.10%
CIT Group, Inc.		619,564		22,862
Citigroup, Inc.		374,282		21,705
JPMorgan Chase & Co.		158,360		20,376
Total				64,943

Biotechnology 2.82%
AbbVie, Inc.		177,190		18,158

Building Products 2.95%
Masco Corp.		349,720		18,993

Capital Markets 9.39%
Ameriprise Financial, Inc.		115,216		22,798
Invesco Ltd.		1,087,718		22,396
KKR & Co., Inc. Class A		389,687		15,178
Total				60,372

Chemicals 2.82%
Dow, Inc.		349,917		18,161

Diversified Telecommunication Services 1.79%
Verizon Communications, Inc.		209,835		11,488

Electric: Utilities 3.62%
NRG Energy, Inc.		561,660		23,258

Electronic Equipment, Instruments & Components 2.60%
Avnet, Inc.		474,191		16,744

Investments	Shares		Fair Value (000)
Energy Equipment & Services 1.28%
Schlumberger Ltd.		370,880	$	8,237

Health Care Providers & Services 7.94%
CVS Health Corp.		236,522		16,947
McKesson Corp.		101,790		17,759
Universal Health Services, Inc. Class B		131,556		16,403
Total				51,109

Hotels, Restaurants & Leisure 3.42%
Caesars Entertainment, Inc.*		312,110		21,969

Household Products 3.94%
Spectrum Brands Holdings, Inc.		335,502		25,354

Insurance 6.40%
Fidelity National Financial, Inc.		562,870		20,432
Hartford Financial Services Group, Inc. (The)		431,910		20,740
Total				41,172

Machinery 5.58%
Allison Transmission Holdings, Inc.		445,000		18,112
Westinghouse Air Brake Technologies Corp.		239,322		17,760
Total				35,872

Media 6.00%
Comcast Corp. Class A		375,030		18,590
Nexstar Media Group, Inc. Class A		176,271		20,037
Total				38,627

Oil, Gas & Consumable Fuels 3.74%
Chevron Corp.		92,075		7,845
ONEOK, Inc.		200,550		7,988
Total SE ADR		195,094		8,209
Total				24,042

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – FOCUSED LARGE CAP VALUE FUND January 31, 2021

Investments	Shares		Fair Value (000)
Pharmaceuticals 2.42%
Bristol-Myers Squibb Co.		253,680	$	15,584

Semiconductors & Semiconductor Equipment 1.82%
Intel Corp.		210,991		11,712

Software 3.50%
McAfee Corp. Class A		1,194,110		22,509

Specialty Retail 6.00%
Lowe’s Cos., Inc.		118,878		19,835
TJX Cos., Inc. (The)		292,850		18,754
Total				38,589

Tobacco 2.17%
Philip Morris International, Inc.		175,600		13,987
Total Common Stocks (cost $517,167,812)				637,687

Investments	Principal Amount (000)		Fair Value (000)
SHORT-TERM INVESTMENT 0.71%

Repurchase Agreement
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $4,671,100 of U.S. Treasury Note at 0.25% due 06/15/2023; value: $4,683,493; proceeds: $4,591,581 (cost $4,591,581)		$4,592	$	4,592
Total Investments in Securities 99.84% (cost $521,759,393)				642,279
Other Assets in Excess of Liabilities 0.16%				1,039
Net Assets 100.00%			$	643,318

ADR		American Depositary Receipt.
*		Non-income producing security.

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Common Stocks	$	637,687	$	–	$	–	$	637,687
Short-Term Investment
Repurchase Agreement		–		4,592		–		4,592
Total	$	637,687	$	4,592	$	–	$	642,279

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

8	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – FOCUSED SMALL CAP VALUE FUND January 31, 2021

Investments	Shares		Fair Value (000)
COMMON STOCKS 96.80%

Aerospace & Defense 0.86%
Triumph Group, Inc.		138,791	$	1,503

Auto Components 2.99%
American Axle & Manufacturing Holdings, Inc.*		596,659		5,257

Automobiles 2.27%
Harley-Davidson, Inc.		99,328		3,982

Banks 16.27%
Bancorp, Inc. (The)*		394,056		6,608
BankUnited, Inc.		120,300		4,168
Pacific Premier Bancorp, Inc.		138,700		4,612
Sterling Bancorp		267,129		4,931
TCF Financial Corp.		99,296		3,859
Western Alliance Bancorp		64,373		4,389
Total				28,567

Building Products 2.72%
Masonite International Corp.*		47,944		4,770

Capital Markets 6.61%
Brightsphere Investment Group, Inc.		173,293		3,177
Moelis & Co. Class A		68,300		3,395
Sculptor Capital Management, Inc.		167,538		2,841
Victory Capital Holdings, Inc. Class A		103,569		2,198
Total				11,611

Chemicals 2.00%
Axalta Coating Systems Ltd.*		129,817		3,504

Commercial Services & Supplies 2.27%
SP Plus Corp.*		137,618		3,991

Construction & Engineering 1.94%
EMCOR Group, Inc.		38,592		3,408

Consumer Finance 1.57%
Nelnet, Inc. Class A		40,000		2,752

Investments	Shares		Fair Value (000)
Containers & Packaging 1.62%
Pactiv Evergreen, Inc.*		201,700	$	2,850

Electronic Equipment, Instruments & Components 2.00%
Avnet, Inc.		99,586		3,516

Energy Equipment & Services 1.23%
Core Laboratories NV (Netherlands)^(a)		65,761		2,169

Equity Real Estate Investment Trusts 3.77%
Outfront Media, Inc.		150,767		2,748
Sunstone Hotel Investors, Inc.		361,672		3,870
Total				6,618

Health Care Equipment & Supplies 1.61%
NuVasive, Inc.*		52,500		2,821

Hotels, Restaurants & Leisure 2.19%
Caesars Entertainment, Inc.*		54,567		3,841

Household Durables 2.85%
Purple Innovation, Inc.*		147,073		5,006

Household Products 2.97%
Spectrum Brands Holdings, Inc.		68,927		5,209

Insurance 4.27%
Axis Capital Holdings Ltd.		60,300		2,768
ProSight Global, Inc.*		84,574		1,053
Stewart Information Services Corp.		79,425		3,683
Total				7,504

Leisure Products 2.43%
Malibu Boats, Inc. Class A*		60,800		4,263

Machinery 9.00%
Blue Bird Corp.*		149,100		3,057
Columbus McKinnon Corp.		87,200		3,766
Hillenbrand, Inc.		145,852		5,995
Miller Industries, Inc.		75,011		2,991
Total				15,809

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – FOCUSED SMALL CAP VALUE FUND January 31, 2021

Investments	Shares		Fair Value (000)
Media 3.45%
EW Scripps Co. (The) Class A		175,600	$	2,601
Nexstar Media Group, Inc. Class A		30,396		3,455
Total				6,056

Metals & Mining 3.95%
Lundin Mining Corp.^(b)	CAD	417,300		3,720
Worthington Industries, Inc.		61,507		3,219
Total				6,939

Oil, Gas & Consumable Fuels 3.30%
Devon Energy Corp.		65,181		1,073
MEG Energy Corp.*^(b)	CAD	640,800		2,135
Par Pacific Holdings, Inc.*		194,308		2,580
Total				5,788

Real Estate Management & Development 2.16%
Realogy Holdings Corp.*		267,375		3,797

Semiconductors & Semiconductor Equipment 4.30%
Advanced Energy Industries, Inc.*		39,100		4,011
Ichor Holdings Ltd.*		98,100		3,541
Total				7,552

Technology Hardware, Storage & Peripherals 2.04%
Diebold Nixdorf, Inc.*		261,784		3,576

Thrifts & Mortgage Finance 4.16%
Essent Group Ltd.		71,400		2,987
Flagstar Bancorp, Inc.		100,800		4,319
Total				7,306
Total Common Stocks (cost $142,505,067)				169,965

Investments	Principal Amount (000)		Fair Value (000)
SHORT-TERM INVESTMENT 2.94%

Repurchase Agreement
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $5,275,600 of U.S. Treasury Note at 0.125% 7/15/2023; value: $5,272,558; proceeds: $5,169,173 (cost $5,169,173)		$5,169	$	5,169
Total Investments in Securities 99.74% (cost $147,674,240)				175,134
Foreign Cash and Other Assets in Excess of Liabilities 0.26%				454
Net Assets 100.00%			$	175,588

CAD		Canadian dollar.
*		Non-income producing security.
^(a)		Foreign security traded in U.S. dollars.
^(b)		Investment in non-U.S. dollar denominated securities.

10	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – FOCUSED SMALL CAP VALUE FUND January 31, 2021

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Common Stocks	$	169,965	$	–	$	–	$	169,965
Short-Term Investment
Repurchase Agreement		–		5,169		–		5,169
Total	$	169,965	$	5,169	$	–	$	175,134

	⁽¹⁾	Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
	⁽²⁾	See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – FUNDAMENTAL EQUITY FUND January 31, 2021

Investments	Shares		Fair Value (000)
COMMON STOCKS 99.46%

Aerospace & Defense 1.80%
Raytheon Technologies Corp.		475,940	$	31,759

Air Freight & Logistics 0.75%
Expeditors International of Washington, Inc.		147,740		13,226

Auto Components 1.42%
Lear Corp.		166,039		25,032

Automobiles 1.53%
General Motors Co.		534,010		27,064

Banks 9.06%
CIT Group, Inc.		802,450		29,610
East West Bancorp, Inc.		555,263		33,283
JPMorgan Chase & Co.		548,196		70,536
Western Alliance Bancorp		391,980		26,725
Total				160,154

Beverages 1.36%
PepsiCo, Inc.		175,416		23,957

Biotechnology 1.32%
AbbVie, Inc.		107,890		11,057
Vertex Pharmaceuticals, Inc.*		53,250		12,198
Total				23,255

Building Products 1.54%
Masco Corp.		502,060		27,267

Capital Markets 4.94%
Ameriprise Financial, Inc.		141,046		27,909
Blackstone Group, Inc. (The) Class A		362,940		24,386
Morgan Stanley		521,576		34,971
Total				87,266

Chemicals 4.34%
Corteva, Inc.		647,610		25,814
Dow, Inc.		434,650		22,558
PPG Industries, Inc.		210,979		28,421
Total				76,793

Investments	Shares		Fair Value (000)
Consumer Finance 1.96%
American Express Co.		298,196	$	34,668

Diversified Telecommunication Services 1.80%
Verizon Communications, Inc.		582,780		31,907

Electric: Utilities 2.28%
Edison International		371,378		21,600
NextEra Energy, Inc.		232,154		18,774
Total				40,374

Electrical Equipment 1.53%
Hubbell, Inc.		174,066		27,085

Equity Real Estate Investment Trusts 2.84%
Alexandria Real Estate Equities, Inc.		108,667		18,159
Host Hotels & Resorts, Inc.		994,919		13,481
Prologis, Inc.		179,403		18,515
Total				50,155

Health Care Equipment & Supplies 3.33%
Medtronic plc (Ireland)^(a)		331,009		36,851
Zimmer Biomet Holdings, Inc.		143,630		22,072
Total				58,923

Health Care Providers & Services 3.66%
CVS Health Corp.		384,006		27,514
McKesson Corp.		87,483		15,263
UnitedHealth Group, Inc.		65,810		21,953
Total				64,730

Hotels, Restaurants & Leisure 1.21%
Choice Hotels International, Inc.		51,352		5,168
Domino’s Pizza, Inc.		43,700		16,202
Total				21,370

Household Products 2.65%
Colgate-Palmolive Co.		309,400		24,133
Procter & Gamble Co. (The)		176,963		22,689
Total				46,822

12	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – FUNDAMENTAL EQUITY FUND January 31, 2021

Investments	Shares		Fair Value (000)
Industrial Conglomerates 2.33%
Honeywell International, Inc.		210,642	$	41,153

Information Technology Services 0.93%
Mastercard, Inc. Class A		51,750		16,368

Insurance 4.92%
American International Group, Inc.		558,752		20,920
Everest Re Group Ltd.		115,015		24,277
Fidelity National Financial, Inc.		677,920		24,608
Globe Life, Inc.		190,640		17,232
Total				87,037

Interactive Media & Services 2.97%
Alphabet, Inc. Class A*		21,990		40,184
Facebook, Inc. Class A*		47,432		12,253
Total				52,437

Internet & Direct Marketing Retail 1.08%
eBay, Inc.		339,090		19,162

Life Sciences Tools & Services 2.08%
Thermo Fisher Scientific, Inc.		26,640		13,578
Waters Corp.*		87,339		23,116
Total				36,694

Machinery 3.29%
Cummins, Inc.		130,002		30,475
Westinghouse Air Brake Technologies Corp.		372,587		27,650
Total				58,125

Media 3.49%
Comcast Corp. Class A		639,652		31,707
Fox Corp. Class A		596,730		18,606
Nexstar Media Group, Inc. Class A		99,750		11,339
Total				61,652

Multi-Utilities 1.03%
CMS Energy Corp.		318,870		18,137

Investments	Shares		Fair Value (000)
Oil, Gas & Consumable Fuels 4.18%
Cabot Oil & Gas Corp.		732,460	$	13,426
Chevron Corp.		204,720		17,442
Marathon Petroleum Corp.		338,793		14,622
ONEOK, Inc.		264,562		10,538
Total SE ADR		424,500		17,863
Total				73,891

Personal Products 1.51%
Unilever plc^(b)	GBP	457,610		26,658

Pharmaceuticals 4.78%
Bristol-Myers Squibb Co.		520,446		31,971
Eli Lilly and Co.		64,510		13,416
Merck & Co., Inc.		219,209		16,895
Sanofi^(b)	EUR	235,550		22,153
Total				84,435

Road & Rail 1.77%
Landstar System, Inc.		128,604		17,928
Norfolk Southern Corp.		56,167		13,290
Total				31,218

Semiconductors & Semiconductor Equipment 6.00%
KLA Corp.		31,800		8,906
Micron Technology, Inc.*		183,630		14,373
QUALCOMM, Inc.		139,728		21,837
Taiwan Semiconductor Manufacturing Co., Ltd.	ADR	218,830		26,592
Texas Instruments, Inc.		207,077		34,310
Total				106,018

Software 2.82%
Microsoft Corp.		115,620		26,819
Oracle Corp.		381,260		23,040
Total				49,859

Specialty Retail 2.84%
Lowe’s Cos., Inc.		153,550		25,620
TJX Cos., Inc. (The)		382,966		24,525
Total				50,145

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – FUNDAMENTAL EQUITY FUND January 31, 2021

Investments	Shares		Fair Value (000)
Technology Hardware, Storage & Peripherals 2.60%
Apple, Inc.		222,530	$	29,365
NetApp, Inc.		250,400		16,637
Total				46,002

Tobacco 0.73%
Philip Morris International, Inc.		161,418		12,857

Water Utilities 0.79%
American Water Works Co., Inc.		88,100		14,010
Total Common Stocks (cost $1,393,190,251)				1,757,665

Investments	Principal Amount (000)		Fair Value (000)
SHORT-TERM INVESTMENT 0.43%

Repurchase Agreement
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $7,711,900 of U.S. Treasury Note at 0.125% due 7/15/2023; value: $7,707,453; proceeds: $7,556,257 (cost $7,556,257)		$7,556	$	7,556
Total Investments in Securities 99.89% (cost $1,400,746,508)				1,765,221
Other Assets in Excess of Liabilities 0.11%				1,942
Net Assets 100.00%			$	1,767,163


ADR		American Depositary Receipt. EUR Euro.
GBP		British pound.
*		Non-income producing security.
^(a)		Foreign security traded in U.S. dollars.
^(b)		Investment in non-U.S. dollar denominated securities.

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Common Stocks
Personal Products	$	–	$	26,658	$	–	$	26,658
Pharmaceuticals		62,282		22,153		–		84,435
Remaining Industries		1,646,572		–		–		1,646,572
Short-Term Investment
Repurchase Agreement		–		7,556		–		7,556
Total	$	1,708,854	$	56,367	$	–	$	1,765,221

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography. The table above is presented by Investment Type. Industries are presented within an Investment Type should such Investment Type include securities classified as two or more levels within the three-tier fair value hierarchy.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

14	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – GLOBAL EQUITY RESEARCH FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
COMMON STOCKS 98.39%

Brazil 1.54%

Metals & Mining
Vale SA		8,109	$	130

Canada 3.60%

Aerospace & Defense 1.36%
CAE, Inc.		5,110		115

Information Technology Services 0.99%
Shopify, Inc.*		76		83

Insurance 0.80%
Intact Financial Corp.		605		67

Oil, Gas & Consumable Fuels 0.45%
Pembina Pipeline Corp.		1,453		38
Total Canada				303

China 2.64%

Construction Materials 0.96%
China Resources Cement Holdings Ltd.		73,329		81

Interactive Media & Services 1.68%
Tencent Holdings Ltd.		1,586		141
Total China				222

Denmark 1.09%

Beverages
Carlsberg A/S Class B		627		92

France 4.13%

Insurance 1.45%
AXA SA		5,522		122

Life Sciences Tools & Services 0.47%
Sartorius Stedim Biotech		95		40

Investments	Shares		U.S. $ Fair Value (000)
France (continued)

Multi-Utilities 1.18%
Engie SA*		6,366	$	99

Personal Products 1.03%
L’Oreal SA		247		87
Total France				348

Germany 1.28%

Semiconductors & Semiconductor Equipment
Infineon Technologies AG		2,684		108

Hong Kong 1.69%

Real Estate Management & Development 0.97%
Kerry Properties Ltd.		31,698		82

Textiles, Apparel & Luxury Goods 0.72%
Stella International Holdings Ltd.		50,959		60
Total Hong Kong				142

India 1.27%

Banks
ICICI Bank Ltd. ADR*		7,077		107

Italy 0.96%

Textiles, Apparel & Luxury Goods
Moncler SpA*		1,431		81

Japan 5.98%

Auto Components 1.26%
Denso Corp.		1,900		106

Building Products 1.16%
Sanwa Holdings Corp.		8,631		98

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – GLOBAL EQUITY RESEARCH FUND January 31, 2021

Investments	Shares		U.S. $ Fair Value (000)
Japan (continued)

Electronic Equipment, Instruments & Components 2.43%
Keyence Corp.		186	$	100
TDK Corp.		649		105
				205

Household Durables 1.13%
Sony Corp.		994		95
Total Japan				504

Mexico 2.00%

Banks 1.25%
Grupo Financiero Banorte SAB de CV*		21,228		105

Transportation Infrastructure 0.75%
Grupo Aeroportuario del Pacifico SAB de CV*		6,278		64
Total Mexico				169

Netherlands 0.74%

Information Technology Services
Adyen NV*^†		30		63

Norway 1.70%

Independent Power and Renewable Electricity Producer 0.81%
Scatec ASA^†		1,799		68

Oil, Gas & Consumable Fuels 0.89%
Equinor ASA		4,168		75
Total Norway				143

South Korea 2.79%

Technology Hardware, Storage & Peripherals
Samsung Electronics Co., Ltd.		3,215		235

Investments	Shares		U.S. $ Fair Value (000)
Sweden 1.20%

Machinery
Alfa Laval AB*		3,870	$	101

Switzerland 2.45%

Capital Markets 1.61%
UBS Group AG		9,386		135

Life Sciences Tools & Services 0.84%
Lonza Group AG		111		71
Total Switzerland				206

Taiwan 2.02%

Semiconductors & Semiconductor Equipment
Taiwan Semiconductor Manufacturing Co., Ltd.		8,052		170

United Kingdom 4.04%

Capital Markets 0.87%
London Stock Exchange Group plc		617		73

Equity Real Estate Investment Trusts 0.99%
UNITE Group plc (The)*		6,345		83

Insurance 0.65%
Prudential plc		3,456		55

Personal Products 0.95%
Unilever PLC		1,366		80

Specialty Retail 0.58%
WH Smith plc		2,349		49
Total United Kingdom				340

United States 57.27%

Auto Components 1.84%
Lear Corp.		1,028		155

16	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – GLOBAL EQUITY RESEARCH FUND January 31, 2021

Investments	Shares		U.S. $ Fair Value (000)
United States (continued)

Banks 1.60%
Bancorp, Inc. (The)*		8,062	$	135

Beverages 1.10%
Coca-Cola Co. (The)		1,928		93

Biotechnology 2.98%
Natera, Inc.*		929		99
TG Therapeutics, Inc.*		942		45
Vertex Pharmaceuticals, Inc.*		466		107
				251

Building Products 0.89%
Masco Corp.		1,387		75

Capital Markets 1.04%
BlackRock, Inc.		125		88

Chemicals 2.34%
Axalta Coating Systems Ltd.*		3,630		98
Valvoline, Inc.		4,153		99
				197

Consumer Finance 2.91%
Ally Financial, Inc.		3,136		119
Discover Financial Services		1,514		126
				245

Electrical Equipment 1.13%
AMETEK, Inc.		834		95

Entertainment 2.93%
Activision Blizzard, Inc.		1,065		97
Live Nation Entertainment, Inc.*		942		63
Roku, Inc.*		224		87
				247

Equity Real Estate Investment Trusts 0.88%
Alexandria Real Estate Equities, Inc.		445		74

Investments	Shares		U.S. $ Fair Value (000)
United States (continued)

Food & Staples Retailing 2.68%
Sysco Corp.		926	$	66
Walmart, Inc.		1,136		160
				226

Health Care Equipment & Supplies 1.52%
DexCom, Inc.*		121		45
Zimmer Biomet Holdings, Inc.		539		83
				128

Health Care Providers & Services 1.19%
UnitedHealth Group, Inc.		300		100

Hotels, Restaurants & Leisure 0.83%
Caesars Entertainment, Inc.*		991		70

Information Technology Services 2.41%
Mastercard, Inc. Class A		351		111
PayPal Holdings, Inc.*		391		92
				203

Interactive Media & Services 4.78%
Alphabet, Inc. Class A*		114		209
Facebook, Inc. Class A*		519		134
Pinterest, Inc. Class A*		878		60
				403

Internet & Direct Marketing Retail 3.00%
Amazon.com, Inc.*		79		253

Life Sciences Tools & Services 1.09%
10X Genomics, Inc. Class A*		538		92

Machinery 2.47%
Hillenbrand, Inc.		3,276		135
Stanley Black & Decker, Inc.		424		73
				208

Multi-Line Retail 1.34%
Dollar Tree, Inc.*		1,116		113

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – GLOBAL EQUITY RESEARCH FUND January 31, 2021

Investments	Shares		U.S. $ Fair Value (000)
United States (continued)

Oil, Gas & Consumable Fuels 1.88%
Marathon Petroleum Corp.		1,394	$	60
Pioneer Natural Resources Co.		811		98
				158

Pharmaceuticals 2.77%
Eli Lilly and Co.		635		132
Merck & Co., Inc.		1,310		101
				233

Road & Rail 1.64%
Norfolk Southern Corp.		582		138

Semiconductors & Semiconductor Equipment 2.83%
Applied Materials, Inc.		940		91
NVIDIA Corp.		284		147
				238

Software 6.29%
Microsoft Corp.		1,233		286
RingCentral, Inc. Class A*		243		91
salesforce.com, Inc.*		369		83
Trade Desk, Inc. (The) Class A*		92		70
				530

Specialty Retail 0.91%
TJX Cos., Inc. (The)		1,204		77
Total United States				4,825
Total Common Stocks (cost $6,889,479)				8,289

Investments	Principal Amount (000)		U.S. $ Fair Value (000)
SHORT-TERM INVESTMENT 1.74%

Repurchase Agreement
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $150,000 of U.S. Treasury Note at 0.25% due 06/15/2023; value: $150,398; proceeds: $147,354 (cost $147,354)		$147	$	147
Total Investments in Securities 100.13% (cost $7,036,833)				8,436
Liabilities in Excess of Foreign Cash and Other Assets (0.13)%				(11	)
Net Assets 100.00%			$	8,425

ADR		American Depositary Receipt.
*		Non-income producing security.
^†		Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At January 31, 2021, the total value of Rule 144A securities was $131, which represents 1.55% of net assets.

18	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – GLOBAL EQUITY RESEARCH FUND January 31, 2021

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Common Stocks
China	$	–	$	222	$	–	$	222
Denmark		–		92		–		92
France		40		308		–		348
Germany		–		108		–		108
Hong Kong		–		142		–		142
Italy		–		81		–		81
Japan		–		504		–		504
Netherlands		–		63		–		63
Norway		–		143		–		143
South Korea		–		235		–		235
Sweden		–		101		–		101
Switzerland		–		206		–		206
Taiwan		–		170		–		170
United Kingdom		80		260		–		340
Remaining Countries		5,534		–		–		5,534
Short-Term Investment
Repurchase Agreement		–		147		–		147
Total	$	5,654	$	2,782	$	–	$	8,436

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography. The table above is presented by Investment Type. Industries are presented within an Investment Type should such Investment Type include securities classified as two or more levels within the three-tier fair value hierarchy.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – GROWTH LEADERS FUND January 31, 2021

			Fair
			Value
Investments	Shares		(000)
COMMON STOCKS 98.38%

Aerospace & Defense 1.60%
Axon Enterprise, Inc.*		753,182	$	123,642
HEICO Corp.		125,350		14,759
Total				138,401

Automobiles 3.79%
Tesla, Inc.*		413,502		328,126

Banks 0.53%
SVB Financial Group*		104,725		45,847

Biotechnology 7.38%
Arena Pharmaceuticals, Inc.*		1,163,312		86,364
Argenx SE ADR*		161,323		47,271
Iovance Biotherapeutics, Inc.*		1,003,033		43,973
Mirati Therapeutics, Inc.*		328,805		67,514
Natera, Inc.*		358,837		38,266
Neurocrine Biosciences, Inc.*		653,862		71,761
Seagen, Inc.*		302,936		49,763
TG Therapeutics, Inc.*		2,396,820		115,695
Turning Point Therapeutics, Inc.*		640,862		80,422
Vertex Pharmaceuticals, Inc.*		169,402		38,807
Total				639,836

Building Products 0.73%
AZEK Co., Inc. (The)*		1,578,458		62,965

Capital Markets 1.35%
MarketAxess Holdings, Inc.		109,591		59,262
MSCI, Inc.		145,874		57,664
Total				116,926

Diversified Consumer Services 0.55%
Bright Horizons Family Solutions, Inc.*		315,818		47,995

Electrical Equipment 2.67%
Generac Holdings, Inc.*		415,524		102,393
Plug Power, Inc.*		1,528,604		96,562

			Fair
			Value
Investments	Shares		(000)
Electrical Equipment (continued)
Shoals Technologies Group, Inc.
Class A*		23,746	$	806
Sunrun, Inc.*		457,685		31,704
Total				231,465

Electronic Equipment, Instruments & Components 3.24%
Amphenol Corp. Class A		750,010		93,661
Cognex Corp.		990,367		81,339
Trimble, Inc.*		1,612,049		106,250
Total				281,250

Entertainment 6.84%
Activision Blizzard, Inc.		1,067,077		97,104
Live Nation Entertainment, Inc.*		976,971		64,920
Netflix, Inc.*		265,786		141,502
Roku, Inc.*		532,418		207,126
Walt Disney Co. (The)*		490,885		82,552
Total				593,204

Health Care Equipment & Supplies 5.72%
Align Technology, Inc.*		215,815		113,385
Danaher Corp.		185,728		44,174
IDEXX Laboratories, Inc.*		166,030		79,475
Insulet Corp.*		468,830		125,262
Intuitive Surgical, Inc.*		94,192		70,422
Nevro Corp.*		389,118		62,955
Total				495,673

Health Care Providers & Services 0.50%
Guardant Health, Inc.*		277,978		43,226

Hotels, Restaurants & Leisure 1.78%
Airbnb, Inc. Class A*		5,485		1,007
DraftKings, Inc. Class A*		1,841,610		99,650
Vail Resorts, Inc.		203,184		54,039
Total				154,696

20	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – GROWTH LEADERS FUND January 31, 2021

			Fair
			Value
Investments	Shares		(000)
Information Technology Services 5.61%
Affirm Holdings, Inc.*		56,907	$	5,667
EPAM Systems, Inc.*		149,327		51,433
Mastercard, Inc. Class A		272,777		86,277
PayPal Holdings, Inc.*		577,319		135,272
Shopify, Inc. Class A (Canada)*^(a)		66,776		73,359
Square, Inc. Class A*		619,742		133,839
Total				485,847

Interactive Media & Services 8.01%
Alphabet, Inc. Class A*		164,164		299,987
Match Group, Inc.*		856,912		119,848
Pinterest, Inc. Class A*		2,175,472		149,041
Snap, Inc. Class A*		2,362,832		125,088
Total				693,964

Internet & Direct Marketing Retail 9.38%
Amazon.com, Inc.*		147,979		474,450
Chewy, Inc. Class A*		816,522		83,138
MercadoLibre, Inc. (Argentina)*^(a)		77,905		138,633
Stitch Fix, Inc. Class A*		1,219,587		116,398
Total				812,619

Leisure Products 0.70%
Peloton Interactive, Inc. Class A*		416,981		60,933

Life Sciences Tools & Services 1.20%
10X Genomics, Inc. Class A*		609,901		104,385

Pharmaceuticals 0.64%
Zoetis, Inc.		357,351		55,121

Professional Services 0.62%
CoStar Group, Inc.*		59,917		53,908

Road & Rail 2.04%
Uber Technologies, Inc.*		3,464,408		176,442

			Fair
			Value
Investments	Shares		(000)
Semiconductors & Semiconductor Equipment 11.26%
Advanced Micro Devices, Inc.*		1,460,680	$	125,093
Applied Materials, Inc.		1,221,053		118,051
Enphase Energy, Inc.*		644,883		117,594
First Solar, Inc.*		854,815		84,755
Inphi Corp.*		501,220		84,511
Monolithic Power Systems, Inc.		239,958		85,255
NVIDIA Corp.		375,673		195,196
QUALCOMM, Inc.		1,055,881		165,013
Total				975,468

Software 13.82%
Avalara, Inc.*		339,897		50,985
C3.ai, Inc. Class A*^(b)		17,412		2,431
Coupa Software, Inc.*		225,370		69,835
Crowdstrike Holdings, Inc. Class A*		685,657		147,965
DocuSign, Inc.*		330,429		76,954
Five9, Inc.*		680,908		113,201
Microsoft Corp.		2,022,234		469,077
Paycom Software, Inc.*		207,114		78,649
Qualtrics International, Inc. Class A*		651,848		28,681
RingCentral, Inc. Class A*		199,567		74,423
Trade Desk, Inc. (The) Class A*		110,998		85,023
Total				1,197,224

Specialty Retail 0.52%
Carvana Co.*		171,221		44,721

Technology Hardware, Storage & Peripherals 5.95%
Apple, Inc.		3,906,931		515,559

Textiles, Apparel & Luxury Goods 1.95%
Lululemon Athletica, Inc. (Canada)*^(a)		175,971		57,838
NIKE, Inc. Class B		833,852		111,394
Total				169,232
Total Common Stocks (cost $5,752,339,032)				8,525,033

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – GROWTH LEADERS FUND January 31, 2021

	Principal		Fair
	Amount		Value
Investments	(000)		(000)
SHORT-TERM INVESTMENTS 0.62%

Repurchase Agreement 0.60%
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $53,438,100 of U.S. Treasury Note at 0.125% due 7/15/2023; value: $53,407,284; proceeds: $52,360,051 (cost $52,360,051)	$	52,360	$	52,360

			Fair
			Value
Investments	Shares		(000)
Money Market Fund 0.02%
Fidelity Government Portfolio^(c) (cost $1,595,058)		1,595,058	$	1,595

Time Deposit 0.00%
CitiBank N.A.^(c) (cost $177,229)		177,229		177
Total Short-Term Investments (cost $54,132,338)				54,132
Total Investments in Securities 99.00% (cost $5,806,471,370)				8,579,165
Other Assets in Excess of Liabilities 1.00%				86,518
Net Assets 100.00%			$	8,665,683

ADR		American Depositary Receipt.
*		Non-income producing security.
^(a)		Foreign security traded in U.S. dollars.
^(b)		All or a portion of this security is temporarily on loan to unaffiliated broker/dealers.
^(c)		Security was purchased with the cash collateral from loaned securities.

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund's investments carried at fair value⁽¹⁾:

	Level 1		Level 2		Level 3		Total
Investment Type⁽²⁾	(000)		(000)		(000)		(000)
Common Stocks	$	8,525,033	$	–	$	–	$	8,525,033
Short-Term Investments
Repurchase Agreement		–		52,360		–		52,360
Money Market Fund		1,595		–		–		1,595
Time Deposit		–		177		–		177
Total	$	8,526,628	$	52,537	$	–	$	8,579,165

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

22	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – HEALTH CARE FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
COMMON STOCKS 96.19%

Belgium 0.80%

Pharmaceuticals
UCB SA		538	$	56

Canada 0.76%

Biotechnology
Trillium Therapeutics, Inc.*		4,041		53

China 2.33%

Biotechnology 1.47%
I-Mab ADR*		847		46
Zai Lab Ltd. ADR*		348		56
				102

Life Sciences Tools & Services 0.86%
Wuxi Biologics Cayman, Inc.*^†		4,324		60
Total China				162

Denmark 2.80%

Biotechnology 1.33%
Genmab A/S*		233		93

Pharmaceuticals 1.47%
Novo Nordisk A/S Class B		1,468		102
Total Denmark				195

France 1.52%

Life Sciences Tools & Services 0.99%
Sartorius Stedim Biotech		165		69

Pharmaceuticals 0.53%
Sanofi		389		37
Total France				106

Germany 0.26%

Biotechnology
MorphoSys AG ADR*		585		18

			U.S. $ Fair
			Value
Investments	Shares		(000)
Japan 0.50%

Health Care Technology
M3, Inc.		409	$	35

Netherlands 0.53%

Biotechnology
Argenx SE*		126		37

Switzerland 4.44%

Biotechnology 0.82%
CRISPR Therapeutics AG*		343		57

Health Care Equipment & Supplies 0.90%
Alcon, Inc.*		880		63

Life Sciences Tools & Services 1.87%
Lonza Group AG		164		105
Tecan Group AG		53		25
				130

Pharmaceuticals 0.85%
Roche Holding AG		171		59
Total Switzerland				309

United Kingdom 2.30%

Pharmaceuticals
AstraZeneca plc		1,196		122
GW Pharmaceuticals plc ADR*		248		38
Total United Kingdom				160

United States 79.95%

Biotechnology 23.34%
Acceleron Pharma, Inc.*		462		53
Amgen, Inc.		245		59
Arena Pharmaceuticals, Inc.*		972		72
Blueprint Medicines Corp.*		421		41
Bridgebio Pharma, Inc.*		1,099		62
ChemoCentryx, Inc.*		578		33

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – HEALTH CARE FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
United States (continued)
Constellation Pharmaceuticals, Inc.*		2,346	$	77
Insmed, Inc.*		2,724		102
Iovance Biotherapeutics, Inc.*		1,406		62
Karuna Therapeutics, Inc.*		372		37
Krystal Biotech, Inc.*		892		62
Mirati Therapeutics, Inc.*		421		87
Natera, Inc.*		1,071		114
Neurocrine Biosciences, Inc.*		494		54
Rigel Pharmaceuticals, Inc.*		14,279		52
Rocket Pharmaceuticals, Inc.*		1,153		64
Seagen, Inc.*		402		66
SpringWorks Therapeutics, Inc.*		642		54
Stoke Therapeutics, Inc.*		513		31
TG Therapeutics, Inc.*		2,141		103
Turning Point Therapeutics, Inc.*		596		75
Twist Bioscience Corp.*		436		72
Ultragenyx Pharmaceutical, Inc.*		386		54
Vertex Pharmaceuticals, Inc.*		608		139
				1,625

Electronic Equipment, Instruments & Components 0.78%
908 Devices, Inc.*		989		54

Health Care Equipment & Supplies 23.66%
Abbott Laboratories		2,161		267
Align Technology, Inc.*		178		93
Axonics Modulation Technologies, Inc.*		1,001		52
Boston Scientific Corp.*		1,708		60
Cooper Cos., Inc. (The)		184		67
Danaher Corp.		907		216
DexCom, Inc.*		195		73
Edwards Lifesciences Corp.*		1,135		94
IDEXX Laboratories, Inc.*		219		105
Inari Medical, Inc.*		620		59
Insulet Corp.*		453		121
Intuitive Surgical, Inc.*		153		114

			U.S. $ Fair
			Value
Investments	Shares		(000)
United States (continued)
Nevro Corp.*		350	$	57
Outset Medical, Inc.*		749		39
Pulmonx Corp.*		845		48
Silk Road Medical, Inc.*		451		24
West Pharmaceutical Services, Inc.		193		58
Zimmer Biomet Holdings, Inc.		649		100
				1,647

Health Care Providers & Services 6.31%
CVS Health Corp.		665		48
Guardant Health, Inc.*		511		79
HCA Healthcare, Inc.		485		79
UnitedHealth Group, Inc.		699		233
				439

Health Care Technology 3.85%
Inspire Medical Systems, Inc.*		252		51
Schrodinger, Inc.*		774		70
Teladoc Health, Inc.*		316		83
Veeva Systems, Inc. Class A*		230		64
				268

Internet & Direct Marketing Retail 0.91%
Chewy, Inc. Class A*		619		63

Life Sciences Tools & Services 11.95%
10X Genomics, Inc. Class A*		469		80
Adaptive Biotechnologies Corp.* 757				42
Berkeley Lights, Inc.*		709		51
Bio-Rad Laboratories, Inc. Class A*		135		78
Charles River Laboratories International, Inc.*		185		48
Codexis, Inc.*		1,629		38
Maravai LifeSciences Holdings, Inc. Class A*		1,840		64
Pacific Biosciences of California, Inc.*		2,110		68

24	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – HEALTH CARE FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
United States (continued)
Quanterix Corp.*		1,086	$	70
Repligen Corp.*		367		74
Seer, Inc.*^(a)		535		33
Thermo Fisher Scientific, Inc.		364		186
				832

Pharmaceuticals 9.15%
Catalent, Inc.*		469		54
Eli Lilly and Co.		1,245		259
Horizon Therapeutics Plc*		998		72
Intra-Cellular Therapies, Inc.*		862		28
Merck & Co., Inc.		1,581		122
Zoetis, Inc.		663		102
				637
Total United States				5,565
Total Common Stocks (cost $5,578,712)				6,696

	Principal
	Amount
	(000)

SHORT-TERM INVESTMENTS 8.42%

Repurchase Agreement 7.94%
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $562,600 of U.S. Treasury Note at 0.25% due 6/15/2023; value: $564,092; proceeds: $552,997 (cost $552,997)	$	553		553

			U.S. $ Fair
			Value
Investments	Shares		(000)
Money Market Fund 0.43%
Fidelity Government Portfolio^(b) (cost $30,262)		30,262	$	30

Time Deposit 0.05%
CitiBank N.A.^(b) (cost $3,363)		3,363		3
Total Short- Term Investments (cost $586,622)				586
Total Investments in Securities 104.61% (cost $6,165,334)				7,282
Liabilities in Excess of Other Assets (4.61)%				(321	)
Net Assets 100.00%			$	6,961

ADR		American Depositary Receipt.
*		Non-income producing security.
^†		Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At January 31, 2021, the total value of Rule 144A securities was $60, which represents 0.86% of net assets.
^(a)		All or a portion of this security is temporarily on loan to unaffiliated broker/dealers.
^(b)		Security was purchased with the cash collateral from loaned securities.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – HEALTH CARE FUND January 31, 2021

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund's investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Common Stocks
Canada	$	53	$	–	$	–	$	53
China		102		60		–		162
France		69		37		–		106
Germany		18		–		–		18
Switzerland		120		189		–		309
United Kingdom		38		122		–		160
United States		5,565		–		–		5,565
Remaining Countries		–		323		–		323
Short-Term Investments
Repurchase Agreement		–		553		–		553
Money Market Fund		30		–		–		30
Time Deposit		–		3		–		3
Total	$	5,995	$	1,287	$	–	$	7,282

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography. The table above is presented by Investment Type. Industries are presented within an Investment Type should such Investment Type include securities classified as two or more levels within the three-tier fair value hierarchy.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund's net assets.

26	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL EQUITY FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
COMMON STOCKS 100.01%

Australia 3.07%

Capital Markets 0.96%
Macquarie Group Ltd.		39,487	$	3,938

Equity Real Estate Investment Trusts 0.65%
Goodman Group		198,093		2,666

Metals & Mining 1.46%
BHP Group Ltd.		178,800		5,963
Total Australia				12,567

Austria 0.60%

Oil, Gas & Consumable Fuels
OMV AG		59,035		2,477

Belgium 1.88%

Banks 1.08%
KBC Group NV*		63,469		4,426

Beverages 0.80%
Anheuser-Busch InBev SA		52,352		3,286
Total Belgium				7,712

Brazil 0.59%

Metals & Mining
Vale SA ADR		150,759		2,435

Canada 2.77%

Aerospace & Defense 0.92%
CAE, Inc.		166,200		3,755

Insurance 0.58%
Intact Financial Corp.		3,000		326
Intact Financial Corp.		18,800		2,073
				2,399

			U.S. $ Fair
			Value
Investments	Shares		(000)
Canada (continued)

Oil, Gas & Consumable Fuels 1.27%
Pembina Pipeline Corp.		109,367	$	2,879
Suncor Energy, Inc.		139,000		2,325
				5,204
Total Canada				11,358

Chile 0.50%

Metals & Mining
Lundin Mining Corp.		229,400		2,045

China 10.83%

Construction Materials 0.52%
China Resources Cement Holdings Ltd.		1,922,000		2,119

Information Technology Services 0.86%
GDS Holdings Ltd. ADR*		33,919		3,513

Insurance 0.98%
Ping An Insurance Group Co. of China Ltd. Class H		342,000		4,028

Interactive Media & Services 2.91%
Tencent Holdings Ltd.		133,700		11,913

Internet & Direct Marketing Retail 2.52%
Alibaba Group Holding Ltd. ADR*		31,939		8,107
Pinduoduo, Inc. ADR*		13,353		2,213
				10,320

Life Sciences Tools & Services 0.88%
Wuxi Biologics Cayman, Inc.*^†		256,000		3,584

Machinery 0.83%
Airtac International Group		96,000		3,415

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL EQUITY FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
China (continued)

Real Estate Management & Development 0.60%
Logan Group Co., Ltd.		1,656,000	$	2,472

Textiles, Apparel & Luxury Goods 0.73%
ANTA Sports Products Ltd.		182,000		2,997
Total China				44,361

Denmark 5.09%

Air Freight & Logistics 0.81%
DSV PANALPINA A/S		21,124		3,296

Beverages 0.95%
Carlsberg A/S Class B		26,582		3,884

Biotechnology 1.15%
Genmab A/S*		11,870		4,726

Electrical Equipment 0.96%
Vestas Wind Systems A/S		18,230		3,914

Pharmaceuticals 1.22%
Novo Nordisk A/S Class B		71,916		5,010
Total Denmark				20,830

Finland 0.87%

Banks
Nordea Bank Abp*		441,856		3,581

France 10.74%

Aerospace & Defense 1.49%
Airbus SE*		28,642		2,880
Safran SA*		25,758		3,238
				6,118

Auto Components 0.91%
Cie Generale des Etablissements Michelin SCA		26,861		3,702

			U.S. $ Fair
			Value
Investments	Shares		(000)
France (continued)

Banks 0.46%
Credit Agricole SA*		166,664	$	1,886

Chemicals 1.09%
Air Liquide SA		27,343		4,472

Electrical Equipment 1.17%
Schneider Electric SE		32,694		4,785

Life Sciences Tools & Services 1.01%
Sartorius Stedim Biotech		9,865		4,130

Multi-Utilities 0.85%
Engie SA*		224,007		3,477

Oil, Gas & Consumable Fuels 1.04%
Total SE		100,819		4,249

Personal Products 1.21%
L'Oreal SA		14,096		4,959

Textiles, Apparel & Luxury Goods 1.51%
LVMH Moet Hennessy Louis Vuitton SE		10,248		6,196
Total France				43,974

Germany 7.06%

Air Freight & Logistics 1.11%
Deutsche Post AG Registered Shares		92,345		4,561

Auto Components 0.66%
Continental AG		19,199		2,687

Automobiles 0.93%
Volkswagen AG		18,039		3,807

Chemicals 0.73%
Symrise AG		24,141		3,004

28	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL EQUITY FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
Germany (continued)

Insurance 1.02%
Allianz SE Registered Shares		18,422	$	4,164

Media 0.55%
Stroeer SE & Co. KGaA		24,887		2,242

Semiconductors & Semiconductor Equipment 1.09%
Infineon Technologies AG		111,554		4,469

Textiles, Apparel & Luxury Goods 0.97%
adidas AG*		12,573		3,987
Total Germany				28,921

Hong Kong 3.84%

Capital Markets 1.26%
Hong Kong Exchanges & Clearing Ltd.		80,800		5,166

Insurance 1.59%
AIA Group Ltd.		540,500		6,516

Machinery 0.99%
Techtronic Industries Co. Ltd.		271,500		4,056
Total Hong Kong				15,738

India 1.72%

Banks
HDFC Bank Ltd. ADR*		44,750		3,227
ICICI Bank Ltd. ADR*		252,680		3,815
Total India				7,042

Indonesia 0.90%

Banks
Bank Rakyat Indonesia Persero Tbk PT		12,458,000		3,693

			U.S. $ Fair
			Value
Investments	Shares		(000)
Ireland 1.37%

Construction Materials 0.87%
CRH plc		86,117	$	3,554

Hotels, Restaurants & Leisure 0.50%
Flutter Entertainment plc*		11,097		2,064
Total Ireland				5,618

Italy 0.79%

Textiles, Apparel & Luxury Goods
Moncler SpA*		57,627		3,247

Japan 15.36%

Auto Components 1.10%
Denso Corp.		81,000		4,502

Automobiles 1.50%
Toyota Motor Corp.		87,800		6,158

Banks 0.64%
Sumitomo Mitsui Financial Group, Inc.		83,800		2,603

Beverages 0.63%
Asahi Group Holdings Ltd.		63,900		2,580

Building Products 1.05%
Daikin Industries Ltd.		20,400		4,307

Diversified Financial Services 0.68%
ORIX Corp.		173,500		2,784

Electrical Equipment 1.13%
Nidec Corp.		34,900		4,644

Electronic Equipment, Instruments & Components 3.73%
Keyence Corp.		10,947		5,877
Murata Manufacturing Co., Ltd.		57,900		5,561
TDK Corp.		23,800		3,849
				15,287

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL EQUITY FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
Japan (continued)

Health Care Equipment & Supplies 1.11%
Hoya Corp.		35,400	$	4,530

Household Durables 1.70%
Sony Corp.		72,700		6,958

Specialty Retail 0.97%
Fast Retailing Co. Ltd.		4,600		3,954

Trading Companies & Distributors 1.12%
ITOCHU Corp.		160,900		4,608
Total Japan				62,915

Mexico 1.03%

Banks 0.54%
Grupo Financiero Banorte SAB de CV*		447,300		2,216

Transportation Infrastructure 0.49%
Grupo Aeroportuario del Pacifico SAB de CV ADR*		19,936		1,990
Total Mexico				4,206

Netherlands 3.44%

Chemicals 0.85%
Akzo Nobel NV		34,369		3,499

Information Technology Services 0.89%
Adyen NV*^†		1,753		3,662

Semiconductors & Semiconductor Equipment 1.70%
ASML Holding NV		13,007		6,944
Total Netherlands				14,105

Norway 0.97%

Oil, Gas & Consumable Fuels
Equinor ASA		221,553		3,970

			U.S. $ Fair
			Value
Investments	Shares		(000)
Poland 0.53%

Air Freight & Logistics
InPost SA*		90,000	$	2,163

South Africa 1.08%

Metals & Mining
Anglo American plc		134,108		4,411

South Korea 2.62%

Technology Hardware, Storage & Peripherals
Samsung Electronics Co., Ltd.		146,948		10,743

Spain 3.18%

Diversified Telecommunication Services 0.92%
Cellnex Telecom SA^†		64,623		3,786

Electric: Utilities 1.32%
Iberdrola SA		393,885		5,333
Iberdrola SA		5,627		76
				5,409

Electrical Equipment 0.94%
Siemens Gamesa Renewable Energy SA		93,693		3,844
Total Spain				13,039

Sweden 1.69%

Machinery
Atlas Copco AB A Shares		56,280		3,053
Sandvik AB*		154,659		3,852
Total Sweden				6,905

Switzerland 6.65%

Capital Markets 1.18%
UBS Group AG		334,544		4,822

Food Products 2.01%
Nestle SA Registered Shares		73,360		8,223

30	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL EQUITY FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
Switzerland (continued)

Insurance 1.08%
Zurich Financial Services AG		11,118	$	4,446

Life Sciences Tools & Services 1.34%
Lonza Group AG		8,619		5,505

Pharmaceuticals 1.04%
Roche Holding AG		12,323		4,253
Total Switzerland				27,249

Taiwan 4.38%

Entertainment 0.50%
Sea Ltd. ADR*		9,385		2,034

Semiconductors & Semiconductor Equipment 3.88%
MediaTek, Inc.		144,000		4,498
Taiwan Semiconductor Manufacturing Co., Ltd.		306,000		6,467
Taiwan Semiconductor Manufacturing Co., Ltd. ADR		40,565		4,929
				15,894
Total Taiwan				17,928

United Kingdom 4.81%

Banks 0.70%
Standard Chartered plc*		472,412		2,858

Capital Markets 0.83%
London Stock Exchange Group plc		28,722		3,410

Equity Real Estate Investment Trusts 0.52%
UNITE Group plc (The)*		161,468		2,118

Insurance 0.88%
Prudential plc		225,769		3,612

Personal Products 0.68%
Unilever plc		47,632		2,775

			U.S. $ Fair
			Value
Investments	Shares		(000)
United Kingdom (continued)

Pharmaceuticals 1.20%
AstraZeneca plc		48,120	$	4,909
Total United Kingdom				19,682

United States 1.65%

Pharmaceuticals 0.64%
Horizon Therapeutics Plc*		36,023		2,611

Trading Companies & Distributors 1.01%
Ferguson plc		35,561		4,129
Total United States				6,740
Total Common Stocks (cost $311,044,003)				409,655
Total Investments in Securities 100.01% (cost $311,044,003)				409,655
Liabilities in Excess of Cash, Foreign Cash and Other Assets (0.01)%				(25	)
Net Assets 100.00%			$	409,630

ADR		American Depositary Receipt.
*		Non-income producing security.
^†		Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At January 31, 2021, the total value of Rule 144A securities was $11,032, which represents 2.69% of net assets.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL EQUITY FUND January 31, 2021

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund's investments carried at fair value⁽¹⁾:

	Level 1		Level 2		Level 3		Total
Investment Type⁽²⁾	(000)		(000)		(000)		(000)
Common Stocks
Brazil	$	2,435	$	–	$	–	$	2,435
Canada		11,032		326		–		11,358
Chile		2,045		–		–		2,045
China		13,833		30,528		–		44,361
France		4,130		39,844		–		43,974
India		7,042		–		–		7,042
Mexico		4,206		–		–		4,206
Poland		2,163		–		–		2,163
Taiwan		6,963		10,965		–		17,928
United States		2,611		4,129		–		6,740
Remaining Countries		–		267,403		–		267,403
Total	$	56,460	$	353,195	$	–	$	409,655

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography. The table above is presented by Investment Type. Industries are presented within an Investment Type should such Investment Type include securities classified as two or more levels within the three-tier fair value hierarchy.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

32	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL OPPORTUNITIES FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
COMMON STOCKS 99.60%

Australia 4.05%

Auto Components 0.86%
GUD Holdings Ltd.		424,273	$	3,848

Diversified Financial Services 0.41%
Omni Bridgeway Ltd.		613,421		1,841

Electric: Utilities 1.09%
AusNet Services		3,732,260		4,913

Food Products 1.04%
Costa Group Holdings Ltd.		1,563,931		4,661

Professional Services 0.65%
IPH Ltd.		609,489		2,937
Total Australia				18,200

Austria 3.24%

Banks 1.00%
BAWAG Group AG*^†		102,833		4,471

Electronic Equipment, Instruments & Components 1.01%
AT&S Austria Technologie & Systemtechnik AG		142,848		4,544

Machinery 1.23%
ANDRITZ AG		116,337		5,526
Total Austria				14,541

Belgium 1.06%

Equity Real Estate Investment Trusts 0.56%
Warehouses De Pauw CVA		69,751		2,505

Wireless Telecommunication Services 0.50%
Orange Belgium SA		84,160		2,270
Total Belgium				4,775

			U.S. $ Fair
			Value
Investments	Shares		(000)
Canada 1.97%

Aerospace & Defense 0.98%
CAE, Inc.		195,700	$	4,421

Paper & Forest Products 0.99%
Interfor Corp.*		238,600		4,447
Total Canada				8,868

Chile 0.92%

Metals & Mining
Lundin Mining Corp.		465,000		4,145

China 2.13%

Biotechnology 0.83%
I-Mab ADR*		68,511		3,726

Marine 1.30%
SITC International Holdings Co. Ltd.		2,552,000		5,850
Total China				9,576

Denmark 0.48%

Machinery
FLSmidth & Co. A/S*		61,490		2,149

France 1.82%

Construction Materials 0.72%
Vicat SA		75,301		3,240

Health Care Providers & Services 1.10%
Korian SA*		133,516		4,933
Total France				8,173

Germany 7.35%

Biotechnology 1.06%
MorphoSys AG*		39,921		4,767

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL OPPORTUNITIES FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
Germany (continued)

Industrial Conglomerates 2.07%
Rheinmetall AG		87,805	$	9,271

Life Sciences Tools & Services 0.68%
Gerresheimer AG		28,766		3,063

Media 0.87%
Stroeer SE & Co. KGaA		43,278		3,900

Real Estate Management & Development 1.29%
PATRIZIA AG		189,606		5,776

Semiconductors & Semiconductor Equipment 1.38%
Aixtron SE*		332,073		6,207
Total Germany				32,984

Hong Kong 5.55%

Building Products 1.24%
Xinyi Glass Holdings Ltd.		2,300,000		5,564

Consumer Finance 0.09%
Sun Hung Kai & Co., Ltd.		1,000,000		409

Hotels, Restaurants & Leisure 1.02%
Melco International Development Ltd.		2,635,000		4,598

Household Durables 0.52%
JS Global Lifestyle Co. Ltd.^†		1,039,500		2,338

Pharmaceuticals 0.46%
SSY Group Ltd.		3,882,000		2,042

Real Estate Management & Development 0.46%
Kerry Properties Ltd.		798,000		2,065

Semiconductors & Semiconductor Equipment 1.05%
ASM Pacific Technology Ltd.		323,000		4,690

			U.S. $ Fair
			Value
Investments	Shares		(000)
Hong Kong (continued)

Textiles, Apparel & Luxury Goods 0.71%
Stella International Holdings Ltd.		2,701,432	$	3,195
Total Hong Kong				24,901

India 3.12%

Banks 1.41%
Federal Bank Ltd.*		6,412,504		6,342

Capital Markets 0.53%
UTI Asset Management Co. Ltd.		310,838		2,364

Information Technology Services 1.18%
Computer Age Management Services Ltd.		218,863		5,319
Total India				14,025

Ireland 1.90%

Health Care Providers & Services 1.35%
UDG Healthcare plc		545,876		6,087

Information Technology Services 0.55%
Keywords Studios plc*		65,870		2,459
Total Ireland				8,546

Israel 1.48%

Machinery
Marel HF^†		1,012,550		6,636

Italy 5.64%

Auto Components 1.23%
Freni Brembo SpA*		405,707		5,515

Construction Materials 0.99%
Buzzi Unicem SpA		181,178		4,458

34	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL OPPORTUNITIES FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
Italy (continued)
Diversified Financial Services 1.73%
Banca Mediolanum SpA*		552,210	$	4,376
doValue SpA*^†		281,190		3,392
				7,768

Textiles, Apparel & Luxury Goods 1.69%
Brunello Cucinelli SpA*		57,404		2,298
Salvatore Ferragamo SpA*		272,506		5,300
				7,598
Total Italy				25,339

Japan 20.30%

Auto Components 1.20%
FCC Co., Ltd.		337,100		5,409

Building Products 1.62%
Sanwa Holdings Corp.		636,300		7,254

Chemicals 1.13%
Kansai Paint Co., Ltd.		172,200		5,069

Construction & Engineering 1.39%
SHO-BOND Holdings Co. Ltd.		143,900		6,261

Distributors 1.04%
PALTAC Corp.		89,400		4,646

Electronic Equipment, Instruments & Components 2.08%
Azbil Corp.		87,300		4,446
Taiyo Yuden Co., Ltd.		83,400		4,893
				9,339

Entertainment 0.49%
Capcom Co., Ltd.		35,400		2,221

Equity Real Estate Investment Trusts 1.11%
GLP J-REIT		1,280		2,062
Nippon Prologis REIT, Inc.		890		2,901
				4,963

			U.S. $ Fair
			Value
Investments	Shares		(000)
Japan (continued)
Food Products 0.43%
Nichirei Corp.		67,000	$	1,941

Information Technology Services 1.35%
TIS, Inc.		273,500		6,082

Machinery 3.64%
CKD Corp.		229,300		5,210
DMG Mori Co., Ltd.		340,400		5,345
OSG Corp.		320,700		5,776
				16,331

Professional Services 1.38%
TechnoPro Holdings, Inc.		81,400		6,198

Software 0.88%
Money Forward, Inc.*		68,600		2,810
Plaid, Inc.*		35,071		1,152
				3,962

Specialty Retail 0.81%
Bic Camera, Inc.		336,400		3,638

Thrifts & Mortgage Finance 0.63%
Aruhi Corp.		171,400		2,824

Wireless Telecommunication Services 1.12%
Okinawa Cellular Telephone Co.		112,600		5,028
Total Japan				91,166

Mexico 1.13%
Banks
Banco Santander Mexico SA Institucion de Banca Multiple Grupo Financiero Santand		1,021,241		5,086

Netherlands 0.29%
Biotechnology
uniQure NV*		36,208		1,282

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL OPPORTUNITIES FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
Norway 2.66%

Independent Power and Renewable Electricity Producer 1.09%
Scatec ASA^†		129,202	$	4,889

Software 1.57%
LINK Mobility Group Holding ASA*		517,595		3,005
Pexip Holding ASA*^(a)		422,614		4,043
				7,048
Total Norway				11,937

Portugal 1.42%

Multi-Utilities
REN - Redes Energeticas Nacionais SGPS SA		2,241,381		6,378

South Korea 2.91%

Food & Staples Retailing 0.78%
GS Retail Co., Ltd.		112,501		3,489

Semiconductors & Semiconductor Equipment 1.05%
WONIK IPS Co., Ltd.*		111,404		4,744

Software 1.08%
Douzone Bizon Co. Ltd.		54,522		4,857
Total South Korea				13,090

Spain 2.87%

Containers & Packaging 1.22%
Vidrala SA		49,969		5,494

Independent Power and Renewable Electricity Producer 0.58%
Solaria Energia y Medio Ambiente SA*		101,312		2,607

Professional Services 1.07%
Applus Services SA*		477,660		4,777
Total Spain				12,878

			U.S. $ Fair
			Value
Investments	Shares		(000)
Sweden 2.27%

Auto Components 0.53%
Dometic Group AB*^†		171,935	$	2,373

Commercial Services & Supplies 1.22%
Loomis AB		212,471		5,451

Food & Staples Retailing 0.52%
Axfood AB		97,859		2,352
Total Sweden				10,176

Switzerland 4.88%

Airlines 0.47%
Wizz Air Holdings plc*^†		35,545		2,121

Containers & Packaging 1.33%
SIG Combibloc Group AG*		250,701		5,950

Insurance 0.89%
Swiss Life Holding AG		8,790		4,008

Life Sciences Tools & Services 1.04%
Tecan Group AG		9,591		4,641

Machinery 1.15%
Sulzer AG		48,065		5,178
Total Switzerland				21,898

Taiwan 1.33%

Semiconductors & Semiconductor Equipment
Realtek Semiconductor Corp.		210,000		3,378
Visual Photonics Epitaxy Co., Ltd.		688,000		2,573
Total Taiwan				5,951

United Arab Emirates 0.31%

Information Technology Services
Network International Holdings plc*^†		300,206		1,399

36	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL OPPORTUNITIES FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
United Kingdom 17.21%

Aerospace & Defense 0.74%
Senior plc*		2,558,219	$	3,342

Beverages 1.08%
Britvic plc		478,822		4,873

Capital Markets 1.21%
Man Group plc		2,714,523		5,419

Construction Materials 1.32%
Breedon Group plc*		5,064,149		5,912

Consumer Finance 0.73%
Arrow Global Group plc*		1,138,339		3,259

Equity Real Estate Investment Trusts 1.93%
Big Yellow Group PLC		224,755		3,391
UNITE Group plc (The)*		403,569		5,293
				8,684

Household Durables 0.51%
Focusrite PLC		157,136		2,271

Insurance 1.44%
Lancashire Holdings Ltd.		695,702		6,474

Internet & Direct Marketing Retail 1.27%
ASOS plc*		93,679		5,724

Machinery 0.79%
Concentric AB		163,095		3,561

Media 1.13%
S4 Capital plc*		748,827		5,079

Multi-Line Retail 0.81%
B&M European Value Retail SA		495,813		3,624

Pharmaceuticals 1.03%
Dechra Pharmaceuticals plc		94,121		4,640

			U.S. $ Fair
			Value
Investments	Shares		(000)
United Kingdom (continued)

Real Estate Management &Development 1.10%
Savills PLC*		343,141	$	4,928

Specialty Retail 0.86%
WH Smith plc		184,369		3,850

Trading Companies & Distributors 1.26%
Grafton Group plc		478,639		5,651
Total United Kingdom				77,291

United States 1.31%

Exchange- Traded Funds
VanEck Vectors Junior Gold Miners		117,180		5,868
Total Common Stocks (cost $379,840,543)				447,258

	Principal
	Amount
	(000)

SHORT-TERM INVESTMENTS 1.04%

Repurchase Agreement 1.03%
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $4,694,000 of U.S. Treasury Note at 0.125% due 07/15/2023; value: $4,691,293; proceeds: $4,599,305 (cost $4,599,305)	$	4,599		4,599

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL OPPORTUNITIES FUND January 31, 2021

			U.S. $ Fair
			Value
Investments	Shares		(000)
Money Market Fund 0.01%
Fidelity Government Portfolio^(b) (cost $47,972)		47,972	$	48

Time Deposit 0.00%
CitiBank N.A.^(b) (cost $5,331)		5,331		5
Total Short-Term Investments (cost $4,652,608)				4,652
Total Investments in Securities 100.64% (cost $384,493,151)				451,910
Liabilities in Excess of Foreign Cash and Other Assets^(c)(0.64)%				(2,871	)
Net Assets 100.00%			$	449,039

ADR		American Depositary Receipt.
REIT		Real Estate Investment Trust.
*		Non-income producing security.
^†		Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At January 31, 2021, the total value of Rule 144A securities was $27,618, which represents 6.15% of net assets.
^(a)		All or a portion of this security is temporarily on loan to unaffiliated broker/dealers.
^(b)		Security was purchased with the cash collateral from loaned securities.
^(c)		Liabilities in Excess of Foreign Cash and Other Assets net unrealized appreciation on total return swaps as follows:

Open Total Return Swap Contracts at January 31, 2021:

Swap

Referenced

Termination

Notional

Notional

Unrealized

Counterparty

Index*

Spread

Units

Position

Date

Amount

Value

Appreciation

Bank of America

MLEILAEN

1 Mo. LIBOR +.36%

94,118

Long

6/11/2021

7,131,321

7,155,513

$24,192

*	Merrill Lynch Custom Basket Index.

38	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL OPPORTUNITIES FUND January 31, 2021

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Common Stocks
Canada	$	8,868	$	–	$	–	$	8,868
Chile		4,145		–		–		4,145
China		3,726		5,850		–		9,576
France		3,240		4,933		–		8,173
Germany		3,063		29,921		–		32,984
Israel		6,636		–		–		6,636
Italy		3,392		21,947		–		25,339
Japan		1,152		90,014		–		91,166
Mexico		5,086		–		–		5,086
Netherlands		1,282		–		–		1,282
Norway		3,005		8,932		–		11,937
Portugal		6,378		–		–		6,378
Spain		5,494		7,384		–		12,878
Sweden		5,451		4,725		–		10,176
United Kingdom		16,604		60,687		–		77,291
United States		5,868		–		–		5,868
Remaining Countries		–		129,475		–		129,475
Short-Term Investments
Repurchase Agreement		–		4,599		–		4,599
Money Market Fund		48		–		–		48
Time Deposit		–		5		–		5
Total	$	83,438	$	368,472	$	–	$	451,910
Other Financial Instruments
Total Return Swap Contracts
Assets		–		24,192		–		24,192
Liabilities		–		–		–		–
Total	$	–	$	24,192	$	–	$	24,192

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography. The table above is presented by Investment Type. Industries are presented within an Investment Type should such Investment Type include securities classified as two or more levels within the three-tier fair value hierarchy.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund's net assets.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL VALUE FUND January 31, 2021

Investments	Shares		U.S. $ Fair Value (000)
COMMON STOCKS 98.18%

Australia 5.38%

Banks 1.80%
National Australia Bank Ltd.		500,793	$	8,977

Capital Markets 0.65%
Macquarie Group Ltd.		32,627		3,254

Equity Real Estate Investment Trusts 0.72%
Goodman Group		268,834		3,618

Metals & Mining 2.21%
BHP Group Ltd.		332,110		11,075
Total Australia				26,924

Austria 1.45%

Banks
BAWAG Group AG*^†		166,637		7,245

Belgium 1.41%

Beverages 0.76%
Anheuser-Busch InBev SA		60,463		3,795

Pharmaceuticals 0.65%
UCB SA		31,517		3,264
Total Belgium				7,059

Cambodia 0.55%

Hotels, Restaurants & Leisure
NagaCorp Ltd.		2,410,000		2,736

Canada 1.96%

Banks 0.98%
Royal Bank of Canada		60,800		4,921

Oil, Gas & Consumable Fuels 0.98%
Pembina Pipeline Corp.		185,333		4,879
Total Canada				9,800

Investments	Shares		U.S. $ Fair Value (000)
Chile 1.22%

Metals & Mining 0.79%
Lundin Mining Corp.		441,255	$	3,934

Water Utilities 0.43%
Aguas Andinas SA		7,164,165		2,174
Total Chile				6,108

China 2.80%

Construction Materials 0.98%
China Resources Cement Holdings Ltd.		4,440,000		4,894

Internet & Direct Marketing Retail 0.56%
Alibaba Group Holding Ltd. ADR*		11,005		2,793

Real Estate Management & Development 0.78%
Logan Group Co., Ltd.		2,640,000		3,941

Specialty Retail 0.48%
Topsports International Holdings Ltd.^†		1,486,000		2,408
Total China				14,036

France 14.54%

Aerospace & Defense 1.85%
Safran SA*		31,673		3,982
Thales SA		58,568		5,255
				9,237

Banks 2.00%
Credit Agricole SA*		883,470		9,999

Building Products 1.67%
Cie de Saint-Gobain*		168,415		8,372

Construction & Engineering 0.96%
Vinci SA		51,977		4,820

40	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL VALUE FUND January 31, 2021

Investments	Shares		U.S. $ Fair Value (000)
France (continued)

Diversified Telecommunication Services 1.40%
Orange SA		597,816	$	7,016

Gas Utilities 0.83%
Rubis SCA		92,326		4,179

Insurance 1.63%
AXA SA		368,282		8,159

Multi-Utilities 1.84%
Engie SA*		592,580		9,196

Pharmaceuticals 2.36%
Sanofi		125,874		11,838
Total France				72,816

Germany 11.23%

Air Freight & Logistics 1.57%
Deutsche Post AG Registered Shares		159,140		7,861

Auto Components 1.62%
Continental AG		58,000		8,117

Automobiles 1.41%
Volkswagen AG		33,305		7,028

Chemicals 1.28%
BASF SE		83,016		6,416

Insurance 2.08%
Allianz SE Registered Shares		46,148		10,430

Machinery 0.81%
KION Group AG		47,107		4,067

Media 0.81%
Stroeer SE & Co. KGaA		45,152		4,068

Pharmaceuticals 0.71%
Merck KGaA		21,184		3,531

Investments	Shares		U.S. $ Fair Value (000)
Germany (continued)

Semiconductors & Semiconductor Equipment 0.94%
Infineon Technologies AG		117,006	$	4,688
Total Germany				56,206

Hong Kong 2.11%

Building Products 0.76%
Xinyi Glass Holdings Ltd.		1,568,000		3,793

Real Estate Management & Development 1.35%
Kerry Properties Ltd.		2,619,500		6,780
Total Hong Kong				10,573

India 0.86%

Oil, Gas & Consumable Fuels
Petronet LNG Ltd.		1,324,889		4,297

Italy 3.19%

Auto Components 0.90%
Freni Brembo SpA*		332,247		4,516

Electric: Utilities 1.32%
Enel SpA		665,034		6,596

Textiles, Apparel & Luxury Goods 0.97%
Moncler SpA*		86,401		4,869
Total Italy				15,981

Japan 17.33%

Auto Components 1.70%
Denso Corp.		153,500		8,532

Banks 1.79%
Sumitomo Mitsui Financial Group, Inc.		288,700		8,969

Beverages 1.63%
Asahi Group Holdings Ltd.		202,600		8,180

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL VALUE FUND January 31, 2021

Investments	Shares		U.S. $ Fair Value (000)
Japan (continued)

Building Products 1.72%
Sanwa Holdings Corp.		755,300	$	8,611

Diversified Financial Services 1.69%
ORIX Corp.		526,600		8,450

Electrical Equipment 1.04%
Fuji Electric Co., Ltd.		130,200		5,188

Electronic Equipment, Instruments & Components 3.47%
Hitachi Ltd.		198,000		8,157
TDK Corp.		57,000		9,216
				17,373

Household Durables 1.69%
Sony Corp.		88,300		8,451

Trading Companies & Distributors 1.70%
ITOCHU Corp.		296,800		8,500

Wireless Telecommunication Services 0.90%
SoftBank Group Corp.		58,300		4,517
Total Japan				86,771

Macau 0.93%

Hotels, Restaurants & Leisure
Sands China Ltd.		1,178,000		4,678

Mexico 1.48%

Banks 0.73%
Grupo Financiero Banorte
SAB de CV*		737,066		3,652

Transportation Infrastructure 0.75%
Grupo Aeroportuario del Pacifico SAB de CV*		374,500		3,775
Total Mexico				7,427

Investments	Shares		U.S. $ Fair Value (000)
Netherlands 2.29%

Oil, Gas & Consumable Fuels
Royal Dutch Shell plc Class A ADR^(a)		310,117	$	11,440

Russia 0.99%

Oil, Gas & Consumable Fuels
Lukoil PJSC ADR		69,826		4,942

South Africa 1.88%

Metals & Mining
Anglo American plc		286,808		9,434

South Korea 2.19%

Technology Hardware, Storage & Peripherals
Samsung Electronics Co., Ltd.		149,666		10,942

Sweden 3.04%

Commercial Services & Supplies 0.98%
Loomis AB		192,198		4,931

Machinery 0.97%
Sandvik AB*		195,782		4,876

Oil, Gas & Consumable Fuels 1.09%
Lundin Energy AB		200,147		5,437
Total Sweden				15,244

Switzerland 6.92%

Capital Markets 2.38%
UBS Group AG		828,220		11,938

Insurance 2.22%
Swiss Life Holding AG*		10,200		4,651
Zurich Financial Services AG		16,120		6,445
				11,096

42	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL VALUE FUND January 31, 2021

Investments	Shares		U.S. $ Fair Value (000)
Switzerland (continued)

Pharmaceuticals 2.32%
Novartis AG Registered Shares		69,652	$	6,306
Roche Holding AG		15,310		5,284
				11,590
Total Switzerland				34,624

United Kingdom 12.92%

Banks 1.62%
Standard Chartered plc*		1,343,495		8,129

Electric: Utilities 0.93%
SSE plc		228,919		4,637

Equity Real Estate Investment Trusts 0.86%
UNITE Group plc (The)*		326,393		4,281

Hotels, Restaurants & Leisure 0.66%
Entain PLC*		195,149		3,303

Household Durables 1.12%
Persimmon plc		161,429		5,619

Insurance 2.20%
Beazley plc		850,545		3,620
Prudential plc		461,465		7,383
				11,003

Multi-Utilities 0.90%
National Grid plc		389,183		4,521

Pharmaceuticals 1.08%
AstraZeneca plc		53,163		5,423

Tobacco 2.42%
British American Tobacco plc		211,695		7,692
Imperial Brands plc		221,141		4,439
				12,131

Investments	Shares		U.S. $ Fair Value (000)
United Kingdom (continued)

Trading Companies & Distributors 1.13%
Ashtead Group plc		112,369	$	5,640
Total United Kingdom				64,687

United States 1.51%

Auto Components
Lear Corp.		50,212		7,570
Total Common Stocks (cost $431,092,475)				491,540

	Principal Amount (000)

SHORT-TERM INVESTMENTS 1.14%

Repurchase Agreement 0.99%
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $5,065,200 of U.S. Treasury Note at 0.125% due 07/15/2023; value: $5,062,279; proceeds: $4,962,922 (cost $4,962,922)	$	4,963		4,963

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – INTERNATIONAL VALUE FUND January 31, 2021

Investments	Shares		U.S. $ Fair Value (000)
Money Market Fund 0.14%

Fidelity Government Portfolio^(b) (cost $678,255)		678,255	$	678

Time Deposit 0.01%
CitiBank N.A.^(b) (cost $75,362)		75,362		76
Total Investments in Securities 99.32% (cost $436,809,014)				497,257
Other Assets in Excess of Liabilities 0.68%				3,415
Net Assets 100.00%			$	500,672

ADR		American Depositary Receipt.
*		Non-income producing security.
^†		Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At January 31, 2021, the total value of Rule 144A securities was $9,653, which represents 1.93% of net assets.
^(a)		All or a portion of this security is temporarily on loan to unaffiliated broker/dealers.
^(b)		Security was purchased with the cash collateral from loaned securities.

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Common Stocks
Canada	$	9,800	$	–	$	–	$	9,800
Chile		6,108		–		–		6,108
China		2,793		11,243		–		14,036
Mexico		7,427		–		–		7,427
Netherlands		11,440		–		–		11,440
Sweden		4,931		10,313		–		15,244
United States		7,570		–		–		7,570
Remaining Countries		–		419,915		–		419,915
Short-Term Investments
Repurchase Agreement		–		4,963		–		4,963
Money Market Fund		678		–		–		678
Time Deposit		–		76		–		76
Total	$	50,747	$	446,510	$	–	$	497,257

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography. The table above is presented by Investment Type. Industries are presented within an Investment Type should such Investment Type include securities classified as two or more levels within the three-tier fair value hierarchy.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund's net assets.

44	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – MICRO CAP GROWTH FUND January 31, 2021

Investments	Shares		Fair Value (000)
COMMON STOCKS 91.53%

Air Freight & Logistics 0.57%
Atlas Air Worldwide Holdings, Inc.*		28,377	$	1,470

Auto Components 0.84%
Gentherm, Inc.*		35,648		2,184

Banks 1.51%
Silvergate Capital Corp.*		42,066		3,915

Beverages 1.26%
Celsius Holdings, Inc.*^(a)		61,610		3,290

Biotechnology 14.40%
Adaptimmune Therapeutics plc ADR*		141,129		771
Beam Therapeutics, Inc.*^(a)		38,077		3,672
CareDx, Inc.*		41,570		3,177
Constellation Pharmaceuticals, Inc.*		71,406		2,354
Insmed, Inc.*		59,543		2,238
Karuna Therapeutics, Inc.*		15,390		1,527
Krystal Biotech, Inc.*		25,353		1,767
Myovant Sciences Ltd. (United Kingdom)*^(b)		113,285		2,638
Rigel Pharmaceuticals, Inc.*		515,972		1,878
Rocket Pharmaceuticals, Inc.*		54,616		3,008
Scholar Rock Holding Corp.*		54,456		3,249
Seres Therapeutics, Inc.*		71,813		1,706
Stoke Therapeutics, Inc.*		18,577		1,135
TG Therapeutics, Inc.*		45,428		2,193
Trillium Therapeutics, Inc. (Canada)*^(a)(b)		135,932		1,788
Turning Point Therapeutics, Inc.*		17,790		2,232
Veracyte, Inc.*		37,555		2,129
Total				37,462

Commercial Services & Supplies 1.07%
Montrose Environmental Group, Inc.*		75,001		2,774

Investments	Shares		Fair Value (000)
Communications Equipment 2.78%
AudioCodes Ltd. (Israel)^(b)		32,354	$	971
Calix, Inc.*		207,353		6,262
Total				7,233

Construction & Engineering 0.77%
Ameresco, Inc. Class A*		35,519		1,992

Electrical Equipment 1.00%
TPI Composites, Inc.*		43,507		2,606

Electronic Equipment, Instruments & Components 1.78%
908 Devices, Inc.*		35,751		1,970
nLight, Inc.*		84,012		2,662
Total				4,632

Health Care Equipment & Supplies 10.65%
Axonics Modulation Technologies, Inc.*		71,646		3,704
CryoPort, Inc.*^(a)		76,763		5,235
GenMark Diagnostics, Inc.*		132,417		1,829
Inari Medical, Inc.*		18,195		1,736
OrthoPediatrics Corp.*		57,067		2,635
Outset Medical, Inc.*		27,583		1,430
Pulmonx Corp.*		43,979		2,495
Shockwave Medical, Inc.*		42,121		4,888
SI-BONE, Inc.*		127,709		3,739
Total				27,691

Health Care Providers & Services 2.02%
Castle Biosciences, Inc.*		49,992		3,341
Ontrak, Inc.*^(a)		24,084		1,910
Total				5,251

Health Care Technology 2.69%
Health Catalyst, Inc.*		36,561		1,816
Inspire Medical Systems, Inc.*		15,264		3,076
Simulations Plus, Inc.		26,427		2,092
Total				6,984

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – MICRO CAP GROWTH FUND January 31, 2021

Investments	Shares		Fair Value (000)
Hotels, Restaurants & Leisure 1.08%
Golden Nugget Online
Gaming, Inc.*^(a)		54,358	$	970
Papa John's International, Inc.		18,081		1,850
Total				2,820

Household Durables 3.27%
LGI Homes, Inc.*		30,010		3,202
Sonos, Inc.*		203,229		5,315
Total				8,517

Household Products 0.86%
Central Garden & Pet Co.*		53,089		2,245

Industrial Conglomerates 1.01%
Raven Industries, Inc.		81,229		2,621

Insurance 1.23%
Trupanion, Inc.*		28,497		3,197

Internet & Direct Marketing Retail 5.01%
Magnite, Inc.*		195,619		6,776
Overstock.com, Inc.*		31,993		2,483
PubMatic, Inc.*^(a)		95,205		3,784
Total				13,043

Internet Software & Services 1.48%
Cardlytics, Inc.*		31,400		3,839

Leisure Products 1.35%
Malibu Boats, Inc. Class A*		50,268		3,524

Life Sciences Tools & Services 4.76%
NanoString Technologies, Inc.*		45,424		3,181
Pacific Biosciences of California, Inc.*		116,971		3,784
Quanterix Corp.*		79,863		5,170
Seer, Inc.*		3,813		238
Total				12,373

Machinery 6.08%
Chart Industries, Inc.*		31,643		3,801
Evoqua Water Technologies Corp.*		82,975		2,261

Investments	Shares		Fair Value (000)
Machinery (continued)
Hydrofarm Holdings Group, Inc.*		23,231	$	1,754
Shyft Group, Inc. (The)		98,654		2,979
SPX Corp.*		34,648		1,792
Westport Innovations, Inc. (Canada)*^(a)(b)		433,617		3,226
Total				15,813

Personal Products 0.87%
elf Beauty, Inc.*		104,472		2,273

Pharmaceuticals 0.93%
Intra-Cellular Therapies, Inc.*		41,501		1,334
Pliant Therapeutics, Inc.*^(a)		43,746		1,077
Total				2,411

Professional Services 0.66%
Willdan Group, Inc.*		38,146		1,705

Real Estate Management & Development 1.29%
eXp World Holdings, Inc.*		31,395		3,346

Semiconductors & Semiconductor Equipment 4.36%
CEVA, Inc.*		75,218		4,422
Ichor Holdings Ltd.*		90,154		3,255
Impinj, Inc.*		22,972		1,217
Rambus, Inc.*		129,050		2,451
Total				11,345

Software 12.06%
Agilysys, Inc.*		146,213		5,379
Cerence, Inc.*		66,362		7,427
Digital Turbine, Inc.*		98,878		5,657
fuboTV, Inc.*^(a)		44,952		1,899
Sprout Social, Inc. Class A*		76,421		5,044
Telos Corp.*		123,377		4,355
Upland Software, Inc.*		33,911		1,617
Total				31,378

46	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – MICRO CAP GROWTH FUND January 31, 2021

Investments	Shares		Fair Value (000)
Specialty Retail 2.29%
National Vision Holdings, Inc.*		23,803	$	1,104
Sleep Number Corp.*		44,978		4,846
Total				5,950

Tobacco 0.98%
Turning Point Brands, Inc.		54,371		2,561

Trading Companies & Distributors 0.62%
Rush Enterprises, Inc. Class A		38,636		1,622
Total Common Stocks (cost $162,697,698)				238,067

	Principal Amount (000)

SHORT-TERM INVESTMENTS 10.09%

Repurchase Agreement 4.30%
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $11,411,300 of U.S. Treasury Note at . 125% due 7/15/2023; value: $11,404,720; proceeds: $11,181,085 (cost $11,181,085)	$	11,181		11,181

Investments	Shares		Fair Value (000)
Money Market Fund 5.21%
Fidelity Government Portfolio^(c) (cost $13,557,606)		13,557,606	$	13,558

Time Deposit 0.58%
CitiBank N.A.^(c) (cost $1,506,401)		1,506,401		1,506
Total Short-Term Investments (cost $26,245,092)				26,245
Total Investments in Securities 101.62% (cost $188,942,790)				264,312
Liabilities in Excess of Other Assets (1.62)%				(4,213	)
Net Assets 100.00%			$	260,099

ADR		American Depositary Receipt.
*		Non-income producing security.
^(a)		All or a portion of this security is temporarily on loan to unaffiliated broker/dealers.
^(b)		Foreign security traded in U.S. dollars.
^(c)		Security was purchased with the cash collateral from loaned securities.

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Common Stocks	$	238,067	$	–	$	–	$	238,067
Short-Term Investments
Repurchase Agreement		–		11,181		–		11,181
Money Market Fund		13,558		–		–		13,558
Time Deposit		–		1,506		–		1,506
Total	$	251,625	$	12,687	$	–	$	264,312

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund's net assets.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST – VALUE OPPORTUNITIES FUND January 31, 2021

Investments	Shares		Fair Value (000)
COMMON STOCKS 99.35%

Aerospace & Defense 1.17%
Hexcel Corp.		411,873	$	17,982


Auto Components 3.79%
Dorman Products, Inc.*		221,370		20,107
LCI Industries		120,545		15,596
Lear Corp.		150,141		22,635
Total				58,338

Banks 7.18%
Bank of Hawaii Corp.		214,490		16,771
East West Bancorp, Inc.		462,735		27,737
Pacific Premier Bancorp, Inc.		469,357		15,606
Signature Bank		23,973		3,960
SVB Financial Group*		43,984		19,255
Western Alliance Bancorp		398,255		27,153
Total				110,482

Beverages 0.88%
Primo Water Corp.		873,468		13,495

Building Products 5.84%
A.O. Smith Corp.		449,242		24,394
Allegion plc (Ireland)^(a)		143,087		15,312
Masonite International Corp.*		256,024		25,474
Simpson Manufacturing Co., Inc.		267,896		24,646
Total				89,826

Capital Markets 0.97%
Moelis & Co. Class A		300,756		14,951

Chemicals 4.69%
Avient Corp.		579,422		22,267
Axalta Coating Systems Ltd.*		874,358		23,599
Valvoline, Inc.		1,110,612		26,366
Total				72,232

Investments	Shares		Fair Value (000)
Commercial Services & Supplies 0.67%
Driven Brands Holdings, Inc.*		367,468	$	10,326

Consumer Finance 1.81%
Discover Financial Services		334,109		27,912

Containers & Packaging 1.71%
Avery Dennison Corp.		174,903		26,388

Electric: Utilities 2.07%
IDACORP, Inc.		184,982		16,334
Portland General Electric Co.		368,767		15,595
Total				31,929

Electrical Equipment 1.48%
Generac Holdings, Inc.*		92,298		22,744

Electronic Equipment, Instruments & Components 1.73%
Littelfuse, Inc.		109,740		26,707

Equity Real Estate Investment Trusts 4.83%
Alexandria Real Estate Equities, Inc.		97,218		16,246
CoreSite Realty Corp.		133,721		17,977
First Industrial Realty Trust, Inc.		549,236		22,321
Sunstone Hotel Investors, Inc.		1,661,300		17,776
Total				74,320

Health Care Equipment & Supplies 5.40%
Cooper Cos., Inc. (The)		43,812		15,949
Hill-Rom Holdings, Inc.		229,098		22,003
NuVasive, Inc.*		332,785		17,884
STERIS plc		146,084		27,334
Total				83,170

Health Care Providers & Services 3.49%
Covetrus, Inc.*		452,773		15,426
Encompass Health Corp.		193,027		15,519
Molina Healthcare, Inc.*		106,651		22,782
Total				53,727

48	See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST – VALUE OPPORTUNITIES FUND January 31, 2021

Investments	Shares		Fair Value (000)
Hotels, Restaurants & Leisure 1.42%
Caesars Entertainment, Inc.*		310,500	$	21,856

Household Durables 5.48%
Helen of Troy Ltd.*		74,173		18,117
Leggett & Platt, Inc.		503,100		20,627
Purple Innovation, Inc.*		742,715		25,282
Sonos, Inc.*		777,150		20,322
Total				84,348

Industrial Conglomerates 1.56%
Carlisle Cos., Inc.		165,188		23,941

Information Technology Services 5.17%
Booz Allen Hamilton Holding Corp.		281,361		23,964
EPAM Systems, Inc.*		24,587		8,468
Euronet Worldwide, Inc.*		238,604		29,816
Jack Henry & Associates, Inc. 119,928				17,364
Total				79,612

Insurance 3.77%
Globe Life, Inc.		165,664		14,974
RenaissanceRe Holdings Ltd.		130,748		19,670
Stewart Information Services Corp.		504,960		23,420
Total				58,064

Internet Software & Services 2.03%
TechTarget, Inc.*		417,871		31,215

Leisure Products 1.17%
Malibu Boats, Inc. Class A*		255,808		17,935

Life Sciences Tools & Services 6.56%
Bio-Techne Corp.		76,837		24,965
Charles River Laboratories International, Inc.*		120,894		31,318
ICON plc (Ireland)*^(a)		87,017		17,735
PerkinElmer, Inc.		183,229		26,947
Total				100,965

Investments	Shares		Fair Value (000)
Machinery 4.15%
Allison Transmission Holdings, Inc.		637,526	$	25,947
Columbus McKinnon Corp/NY.		259,959		11,228
Crane Co.		353,195		26,730
Total				63,905

Metals & Mining 1.48%
Reliance Steel & Aluminum Co.		196,229		22,778

Oil, Gas & Consumable Fuels 2.25%
Cabot Oil & Gas Corp.		667,000		12,226
Par Pacific Holdings, Inc.*		795,269		10,561
Pioneer Natural Resources Co. 97,419				11,778
Total				34,565

Real Estate Management & Development 0.99%
Marcus & Millichap, Inc.*		427,800		15,285

Road & Rail 3.00%
Landstar System, Inc.		172,200		24,005
Saia, Inc.*		125,351		22,156
Total				46,161

Semiconductors & Semiconductor Equipment 6.13%
Advanced Energy Industries, Inc.*		139,843		14,345
Entegris, Inc.		344,959		33,941
Monolithic Power Systems, Inc.		63,667		22,620
Teradyne, Inc.		206,133		23,392
Total				94,298

Software 3.23%
Aspen Technology, Inc.*		180,139		24,121
Fair Isaac Corp.*		56,968		25,642
Total				49,763

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST – VALUE OPPORTUNITIES FUND January 31, 2021

Investments	Shares		Fair Value (000)
Specialty Retail 2.67%
Burlington Stores, Inc.*		64,443	$	16,040
Williams-Sonoma, Inc.		194,666		25,096
Total				41,136

Tobacco 0.58%
Turning Point Brands, Inc.		189,097		8,907
Total Common Stocks (cost $1,143,256,002)				1,529,263

Investments	Principal Amount (000)		Fair Value (000)
SHORT-TERM INVESTMENT 0.96%

Repurchase Agreement
Repurchase Agreement dated 1/29/2021, 0.00% due 2/1/2021 with Fixed Income Clearing Corp. collateralized by $14,611,700 of U.S. Treasury Note at 1.25% due 7/31/2023; value: $15,103,282; proceeds: $14,807,099 (cost $14,807,099)	$	14,807	$	14,807

Total Investments in Securities 100.31% (cost $1,158,063,101)				1,544,070
Liabilities in Excess of Other Assets (0.31)%				(4,794	)
Net Assets 100.00%			$	1,539,276

*		Non-income producing security.
^(a)		Foreign security traded in U.S. dollars.

The following is a summary of the inputs used as of January 31, 2021 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type⁽²⁾	Level 1 (000)		Level 2 (000)		Level 3 (000)		Total (000)
Common Stocks	$	1,529,263	$	–	$	–	$	1,529,263
Short-Term Investment
Repurchase Agreement		–		14,807		–		14,807
Total	$	1,529,263	$	14,807	$	–	$	1,544,070

⁽¹⁾		Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
⁽²⁾		See Schedule of Investments for fair values in each industry and identification of foreign issuers and/or geography.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund's net assets.

50	See Notes to Schedule of Investments.

Notes to Financial Statements (unaudited)

1.	ORGANIZATION

Lord Abbett Securities Trust (the “Trust”) is registered under the Investment Company Act of 1940, as amended (the “Act”), as a diversified, open-end management investment company and was organized as a Delaware statutory trust on February 26, 1993. The Trust consists of the following fourteen funds (separately, a “Fund” and collectively, the “Funds”): Lord Abbett Alpha Strategy Fund (“Alpha Strategy Fund”), Lord Abbett Durable Growth Fund (“Durable Growth Fund”), Lord Abbett Focused Growth Fund (“Focused Growth Fund”), Lord Abbett Focused Large Cap Value Fund (“Focused Large Cap Value Fund”), Lord Abbett Focused Small Cap Value (“Focused Small Cap Value Fund”), Lord Abbett Fundamental Equity Fund (“Fundamental Equity Fund”), Lord Abbett Global Equity Research Fund (“Global Equity Research Fund”), Lord Abbett Growth Leaders Fund (“Growth Leaders Fund”), Lord Abbett Health Care Fund (“Health Care Fund”), Lord Abbett International Equity Fund (“International Equity Fund”), Lord Abbett International Opportunities Fund (“International Opportunities Fund”), Lord Abbett International Value Fund (“International Value Fund”), Lord Abbett Micro-Cap Growth Fund (“Micro Cap Growth Fund”) and Lord Abbett Value Opportunities Fund (“Value Opportunities Fund”).

Each of Alpha Strategy Fund’s, Focused Large Cap Value Fund’s, Focused Small Cap Value Fund’s, Global Equity Research Fund’s, Health Care Fund’s, International Equity Fund’s, International Opportunities Fund’s, and Value Opportunities Fund’s investment objective is to seek long- term capital appreciation. Alpha Strategy Fund invests principally in other funds (“Underlying Funds”) managed by Lord, Abbett & Co. LLC (“Lord Abbett”). Fundamental Equity Fund’s investment objective is long- term growth of capital and income without excessive fluctuations in market value. Durable Growth Fund, Growth Leaders Fund’s and Focused Growth Fund’s investment objective is to seek capital appreciation. International Value Fund’s investment objective is to seek a high level of total return.

2.	SIGNIFICANT ACCOUNTING POLICIES

(a)	Investment Valuation-Under procedures approved by the Funds’ Board of Trustees (the “Board”), Lord, Abbett & Co. LLC (“Lord Abbett”), the Fund’s investment manager, has formed a Pricing Committee to administer the pricing and valuation of portfolio investments and to ensure that prices utilized reasonably reflect fair value. Among other things, these procedures allow the Funds to utilize independent pricing services, quotations from securities and financial instrument dealers and other market sources to determine fair value.

	Securities actively traded on any recognized U.S. or non-U.S. exchange or on The NASDAQ Stock Market LLC are valued at the last sale price or official closing price on the exchange or system on which they are principally traded. Events occurring after the close of trading on non-U.S. exchanges may result in adjustments to the valuation of foreign securities to reflect their fair value as of the close of regular trading on the New York Stock Exchange (“NYSE”). Each Fund may utilize an independent fair valuation service in adjusting the valuations of foreign securities. Unlisted equity securities are valued at the last quoted sale price or, if no sale price is available, at the mean between the most recently quoted bid and asked prices. Exchange traded options and futures contracts are valued at the last quoted sale price in the market where they are principally traded. If no sale has occurred, the mean between the most recently quoted bid and asked prices is used. Swaps are valued daily using independent pricing services or quotations from broker/dealers to the extent available. Investments in the

Notes to Financial Statements (unaudited)(continued)

	Underlying Funds are valued at their net asset value (“NAV”) each business day at the close of regular trading on the NYSE, normally 4:00 p.m. Eastern time.

	Securities for which prices are not readily available are valued at fair value as determined by the Pricing Committee. The Pricing Committee considers a number of factors, including observable and unobservable inputs, when arriving at fair value. The Pricing Committee may use related or comparable assets or liabilities, recent transactions, market multiples, book values and other relevant information to determine the fair value of portfolio investments. The Board or a designated committee thereof regularly reviews fair value determinations made by the Pricing Committee and may employ techniques such as reviewing related market activity, reviewing inputs and assumptions, and retrospectively comparing prices of subsequent purchases and sales transactions to fair value determinations made by the Pricing Committee.

	Short-term securities with 60 days or less remaining to maturity are valued using the amortized cost method, which approximates fair value.

(b)	Fair Value Measurements-Fair value is defined as the price that each Fund would receive upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market of the investment. A three-tier hierarchy is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Inputs refer broadly to the assumptions that market participants would use in pricing the asset or liability, including assumptions about risk - for example, the risk inherent in a particular valuation technique used to measure fair value (such as a pricing model) and/or the risk inherent in the inputs to the valuation technique. Inputs may be observable or unobservable. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The three-tier hierarchy classification is determined based on the lowest level of inputs that is significant to the fair value measurement, and is summarized in the three broad Levels listed below:

·	Level 1 –	unadjusted quoted prices in active markets for identical investments;
·	Level 2 –	other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.); and
·	Level 3 –	significant unobservable inputs (including each Fund’s own assumptions in determining the fair value of investments).

	A summary of inputs used in valuing each Fund’s investments and other financial instruments as of January 31, 2021 and, if applicable, Level 3 rollforwards for the period then ended is included in each Fund’s Schedule of Investments.

	Changes in valuation techniques may result in transfers into or out of an assigned level within the three-tier hierarchy. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.

Notes to Financial Statements (unaudited)(continued)

3.	FEDERAL TAX INFORMATION

It is the policy of the Fund to meet the requirements of Subchapter M of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all taxable income and capital gains to its shareholders. Therefore, no income tax provision is required.

Each Fund files U.S. federal and various state and local tax returns. No income tax returns are currently under examination. The statute of limitations on the Fund’s filed U.S. federal tax returns remains open generally three years after the filing of the tax return. The statutes of limitations on the Fund’s, state and local tax returns may remain open for an additional year depending upon the jurisdiction.

4.	SECURITIES LENDING AGREEMENT

The Fund has established a securities lending agreement with Citibank, N.A. (the “agent”) for the lending of securities to qualified brokers in exchange for securities or cash collateral equal to at least the market value of securities loaned, plus interest, if applicable. Cash collateral is invested in an approved money market fund. In accordance with the Fund’s securities lending agreement, the market value of securities on loan is determined each day at the close of business and any additional collateral required to cover the value of securities on loan is delivered to the Fund on the next business day. As with other extensions of credit, the Fund may experience a delay in the recovery of its securities or incur a loss should the borrower of the securities breach its agreement with the Fund or become insolvent at a time when the collateral is insufficient to cover the cost of repurchasing securities on loan.

The initial collateral received by the Fund is required to have a value equal to at least 100% of the market value of the securities loaned. The collateral must be marked- to- market daily to cover increases in the market value of the securities loaned (or potentially a decline in the value of the collateral). In general, the risk of borrower default will be borne by the Fund’s agent; the Fund will bear the risk of loss with respect to the investment of the cash collateral. The advantage of such loans is that the Fund continues to receive income on loaned securities while receiving a portion of any securities lending fees and earning returns on the cash amounts which may be reinvested for the purchase of investments in securities.

As of January 31, 2021, the market value of securities loaned and collateral received for the Funds were as follows:

Funds	Market Value of Securities Loaned		Collateral Received
Growth Leaders Fund	$	1,638,485	$	1,772,287
Health Care Fund		31,200		33,625
International Opportunities Fund		49,506		53,303
International Value Fund		705,484		753,617
Micro Cap Growth Fund		15,006,721		15,064,007

Notes to Financial Statements (unaudited)(concluded)

5.	TRANSACTIONS WITH AFFILIATED ISSUERS

An affiliated issuer is one in which a Fund has ownership of at least 5% of the outstanding voting securities of the underlying issuer at any point during the fiscal year or any company which is under common ownership or control. Alpha Strategy Fund had the following transactions with affiliated issuers (i.e. the Underlying Funds) during the period ended January 31, 2021:

Alpha Strategy Fund

Affiliated Issuer	Balance of Shares Held at 10/31/2020		Gross Additions		Gross Sales			Balance of Shares Held at 1/31/2021		Fair Value at 1/31/2021		Net Realized Gain (Loss) 11/1/2020 to 1/31/2021			Dividend Income 11/1/2020 to 1/31/2021		Change in Appreciation (Depreciation) 11/1/2020 to 1/31/2021
Lord Abbett Developing Growth Fund, Inc. - Class I		3,985,867		334,402		(210,481	)		4,109,788	$	167,021,800	$	16,210,113	^(a)	$	—	$	23,764,650
Lord Abbett Securities Trust - Focused Small Cap Value Fund - Class I		3,321,048		56,202		(354,749	)		3,022,501		82,393,364		(1,861,828	)		785,231		24,436,983
Lord Abbett Securities Trust - International Opportunities Fund - Class I		8,007,354		176,797		(92,288	)		8,091,863		157,872,254		288,713			—		26,462,378
Lord Abbett Securities Trust - Micro-Cap Growth Fund - Class I		3,286,773		866,948		(493,566	)		3,660,155		86,562,672		19,193,135	^(b)		—		11,218,538
Lord Abbett Research Fund, Inc. - Small Cap Value Fund - Class I		8,851,506		123,787		(440,870	)		8,534,423		163,604,891		(4,662,171	)		1,619,595		40,655,503
Lord Abbett Securities Trust - Value Opportunities Fund - Class I		7,636,112		454,133		(207,534	)		7,882,711		158,284,841		7,245,239	^(c)		681,801		17,659,262
Total										$	815,739,822	$	36,413,201		$	3,086,627	$	144,197,314

^(a)	Includes $11,607,104 of distributed capital gains.
^(b)	Includes $16,385,329 of distributed capital gains.
^(c)	Includes $7,499,811 of distributed capital gains.

Investments in Underlying Funds (unaudited)

Alpha Strategy Fund invests in Underlying Funds managed by Lord Abbett. As of January 31, 2021, Alpha Strategy Fund’s long-term investments were allocated among the Underlying Funds as follows:

Underlying Fund Name	% of Investments
Lord Abbett Developing Growth Fund, Inc. – Class I		20.46%
Lord Abbett Research Fund, Inc.-Small Cap Value Fund – Class I		20.04%
Lord Abbett Securities Trust–Focused Small Cap Value Fund – Class I		10.09%
Lord Abbett Securities Trust–International Opportunities Fund – Class I		19.34%
Lord Abbett Securities Trust–Micro-Cap Growth Fund – Class I		10.60%
Lord Abbett Securities Trust–Value Opportunities Fund – Class I		19.38%

The Ten Largest Holdings and the Holdings by Sector or Credit Rating, as of January 31, 2021, for each Underlying Fund are presented below. Each Underlying Fund’s annual and semiannual reports, which are sent to shareholders and filed with the SEC, contain information about the Underlying Fund’s portfolio holdings, including a complete schedule of holdings. A complete schedule of holdings for each Underlying Fund is also filed with the SEC on Form N-PORT as of the end of each respective Underlying Fund’s first and third quarters. In addition, on or about the first day of the second month following each calendar quarter-end, each Fund makes publicly available a complete schedule of its portfolio holdings as of the last day of each such quarter. The information for the most recently ended calendar quarter may be viewed at www.lordabbett.com or requested at no charge by calling Lord Abbett at 888-522-2388.

Lord Abbett Developing Growth Fund, Inc.

Ten Largest Holdings		% of Investments
Inspire Medical Systems, Inc.		1.90%
Axon Enterprise, Inc.		1.71%
Natera, Inc.		1.67%
RH		1.46%
TG Therapeutics, Inc.		1.45%
MKS Instruments, Inc.		1.43%
Cardlytics, Inc.		1.39%
Axonics Modulation Technologies, Inc.		1.35%
SunPower Corp.		1.33%
Stitch Fix, Inc. Class A		1.32%

Holdings by Sector*		% of Investments
Communication Services		0.83%
Consumer Discretionary		17.09%
Consumer Staples		0.81%
Financials		4.32%
Health Care		30.37%
Industrials		12.20%
Information Technology		25.80%
Materials		0.84%
Real Estate		0.90%
Repurchase Agreement		4.17%
Money Market Fund^(a)		2.40%
Time Deposit^(a)		0.27%
Total		100.00%

*	A sector may comprise several industries.
^(a)	Securities were purchased with the cash collateral from loaned securities.

Investments in Underlying Funds (unaudited)(continued)

Focused Small Cap Value Fund

Ten Largest Holdings		% of Investments
Bancorp, Inc. (The)		3.77%
Hillenbrand, Inc.		3.42%
American Axle & Manufacturing Holdings, Inc.		3.00%
Spectrum Brands Holdings, Inc.		2.97%
Purple Innovation, Inc.		2.86%
Sterling Bancorp		2.82%
Masonite International Corp.		2.72%
Pacific Premier Bancorp, Inc.		2.63%
Western Alliance Bancorp		2.51%
Flagstar Bancorp, Inc.		2.47%

Holdings by Sector*		% of Investments
Communication Services		3.46%
Consumer Discretionary		12.76%
Consumer Staples		2.98%
Energy		4.54%
Financials		32.97%
Health Care		1.61%
Industrials		16.83%
Information Technology		8.36%
Materials		7.59%
Real Estate		5.95%
Repurchase Agreement		2.95%
Total		100.00%
* A sector may comprise several industries.

International Opportunities Fund

Ten Largest Holdings		% of Investments
Rheinmetall AG		2.05%
Sanwa Holdings Corp.		1.61%
Marel HF		1.47%
Lancashire Holdings Ltd.		1.43%
REN – Redes Energeticas Nacionais SGPS SA		1.41%
Federal Bank Ltd.		1.40%
SHO-BOND Holdings Co. Ltd.		1.39%
Aixtron SE		1.37%
TechnoPro Holdings, Inc.		1.37%
UDG Healthcare plc		1.35%

Investments in Underlying Funds (unaudited)(continued)

Holdings by Sector*	% of Investments
Communication Services	4.09%
Consumer Discretionary	12.97%
Consumer Staples	3.83%
Financials	12.42%
Health Care	7.79%
Industrials	24.00%
Information Technology	14.74%
Materials	8.57%
Real Estate	6.40%
Utilities	4.16%
Repurchase Agreement	1.02%
Money Market Fund^(a)	0.01%
Time Deposit^(a)	0.00%	^(b)
Total	100.00%

*	A sector may comprise several industries.
^(a)	Securities were purchased with the cash collateral from loaned securities.
^(b)	Amount is less than 0.01%.

Micro Cap Growth Fund

Ten Largest Holdings		% of Investments
Cerence, Inc.		2.81%
Magnite, Inc.		2.56%
Calix, Inc.		2.37%
Digital Turbine, Inc.		2.14%
Agilysys, Inc.		2.04%
Sonos, Inc.		2.01%
CryoPort, Inc.		1.98%
Quanterix Corp.		1.96%
Sprout Social, Inc. Class A		1.91%
Shockwave Medical, Inc.		1.85%

Holdings by Sector*		% of Investments
Consumer Discretionary		13.63%
Consumer Staples		3.92%
Financials		2.69%
Health Care		34.87%
Industrials		11.58%
Information Technology		22.11%
Real Estate		1.27%
Repurchase Agreement		4.23%
Money Market Fund^(a)		5.13%
Time Deposit^(a)		0.57%
Total		100.00%

*	A sector may comprise several industries.
^(a)	Securities were purchased with the cash collateral from loaned securities.

Investments in Underlying Funds (unaudited)(continued)

Lord Abbett Research Fund, Inc. – Small Cap Value Fund

Ten Largest Holdings		% of Investments
Bancorp, Inc. (The)		3.61%
Hillenbrand, Inc.		2.55%
Spectrum Brands Holdings, Inc.		2.43%
Crane Co.		2.17%
BankUnited, Inc.		2.07%
Flagstar Bancorp, Inc.		1.96%
Sterling Bancorp		1.83%
Advanced Energy Industries, Inc.		1.83%
Bank of Hawaii Corp.		1.78%
TCF Financial Corp.		1.76%

Holdings by Sector*		% of Investments
Communication Services		1.09%
Consumer Discretionary		11.41%
Consumer Staples		3.84%
Energy		4.61%
Financials		25.87%
Health Care		4.50%
Industrials		21.19%
Information Technology		9.82%
Materials		6.38%
Real Estate		9.46%
Utilities		1.83%
Total		100.00%
* A sector may comprise several industries.

Value Opportunities Fund

Ten Largest Holdings		% of Investments
Entegris, Inc.		2.20%
Charles River Laboratories International, Inc.		2.03%
TechTarget, Inc.		2.02%
Euronet Worldwide, Inc.		1.93%
Discover Financial Services		1.81%
East West Bancorp, Inc.		1.80%
STERIS plc		1.77%
Western Alliance Bancorp		1.76%
PerkinElmer, Inc.		1.75%
Crane Co.		1.73%

Investments in Underlying Funds (unaudited)(concluded)

Holdings by Sector*		% of Investments
Consumer Discretionary		14.48%
Consumer Non-Cyclical		0.67%
Consumer Staples		1.45%
Energy		2.24%
Financials		13.69%
Health Care		15.41%
Industrials		17.13%
Information Technology		18.24%
Materials		7.86%
Real Estate		5.80%
Utilities		2.07%
Repurchase Agreement		0.96%
Total		100.00%

*	A sector may comprise several industries.

QPHR-SET-1Q

(03/21)