Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - ALPHA STRATEGY FUND July 31, 2020

Investments	Shares		Fair Value (000)
INVESTMENTS IN UNDERLYING FUNDS(a)(b) 100.07%
Lord Abbett Developing Growth Fund, Inc. - Class I*(c)		4,451,712	$	135,777
Lord Abbett Securities Trust - Focused Small Cap Value Fund - Class I*(d)		3,438,384		67,324
Lord Abbett Securities Trust - International Opportunities Fund - Class I(d)		8,308,945		132,860
Lord Abbett Securities Trust - Micro-Cap Growth Fund - Class I*(d)		3,755,070		68,417
Lord Abbett Research Fund, Inc. - Small Cap Value Fund - Class I(d)		8,915,578		134,001
Lord Abbett Securities Trust - Value Opportunities Fund - Class I(d)		7,707,181		134,722
Total Investments in Underlying Funds (cost $743,574,169)				673,101
Liabilities in Excess of Cash and Other Assets (0.07)%				(460	)
Net Assets 100.00%			$	672,641

*	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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - ALPHA STRATEGY FUND July 31, 2020

The following is a summary of the inputs used as of July 31, 2020 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	$	673,101	$	—	$	—	$	673,101
Total	$	673,101	$	—	$	—	$	673,101

(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 strategy of Underlying Funds.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - DURABLE GROWTH FUND July 31, 2020

Investments	Shares		Fair Value (000)
COMMON STOCKS 99.27%
Aerospace & Defense 0.34%
CAE, Inc. (Canada)(a)		53,155	$	794
Automobiles 0.68%
Tesla, Inc.*		1,097		1,570
Banks 0.75%
First Republic Bank		15,446		1,737
Beverages 2.37%
Brown-Forman Corp. Class B		21,549		1,494
Coca-Cola Co. (The)		59,711		2,821
PepsiCo, Inc.		8,553		1,177
Total				5,492
Biotechnology 4.09%
AbbVie, Inc.		37,198		3,531
Amgen, Inc.		11,173		2,734
Immunomedics, Inc.*		24,164		1,020
Vertex Pharmaceuticals, Inc.*		8,125		2,210
Total				9,495
Capital Markets 0.82%
Moody’s Corp.		6,728		1,893
Chemicals 0.76%
Air Products and Chemicals, Inc.		6,177		1,770
Construction Materials 0.77%
Vulcan Materials Co.		15,249		1,791
Containers & Packaging 0.94%
Avery Dennison Corp.		9,101		1,031
Ball Corp.		15,558		1,146
Total				2,177

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - DURABLE GROWTH FUND July 31, 2020

Investments	Shares		Fair Value (000)
Entertainment 2.20%
Netflix, Inc.*		8,358	$	4,086
Walt Disney Co. (The)		8,766		1,025
Total				5,111
Equity Real Estate Investment Trusts 1.99%
American Tower Corp.		9,678		2,530
SBA Communications Corp.		6,668		2,077
Total				4,607
Food & Staples Retailing 0.86%
Walmart, Inc.		15,343		1,985
Health Care Equipment & Supplies 5.02%
Align Technology, Inc.*		5,921		1,740
Boston Scientific Corp.*		38,199		1,473
Danaher Corp.		13,597		2,771
DexCom, Inc.*		3,519		1,533
Intuitive Surgical, Inc.*		3,775		2,587
West Pharmaceutical Services, Inc.		5,700		1,533
Total				11,637
Health Care Providers & Services 1.41%
Anthem, Inc.		4,374		1,198
Centene Corp.*		31,771		2,073
Total				3,271
Hotels, Restaurants & Leisure 1.15%
Chipotle Mexican Grill, Inc.*		2,303		2,660
Household Products 0.38%
Church & Dwight Co., Inc.		9,127		879
Industrial Conglomerates 1.62%
Honeywell International, Inc.		10,428		1,558
Roper Technologies, Inc.		5,084		2,198
Total				3,756

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - DURABLE GROWTH FUND July 31, 2020

Investments	Shares		Fair Value (000)
Information Technology Services 9.91%
Fidelity National Information Services, Inc.		20,000	$	2,926
Genpact Ltd.		49,182		1,959
Global Payments, Inc.		10,029		1,785
Mastercard, Inc. Class A		20,488		6,321
PayPal Holdings, Inc.*		28,919		5,670
Twilio, Inc. Class A*		3,920		1,088
Visa, Inc. Class A		16,987		3,234
Total				22,983
Insurance 0.59%
RenaissanceRe Holdings Ltd.		7,640		1,378
Interactive Media & Services 10.50%
Alphabet, Inc. Class A*		7,245		10,780
Facebook, Inc. Class A*		43,152		10,946
IAC/InterActiveCorp*		7,968		1,055
Match Group, Inc.*		15,274		1,569
Total				24,350
Internet & Direct Marketing Retail 9.59%
Amazon.com, Inc.*		7,030		22,248
Machinery 0.91%
Stanley Black & Decker, Inc.		13,753		2,109
Multi-Line Retail 0.76%
Dollar Tree, Inc.*		18,994		1,773
Oil, Gas & Consumable Fuels 0.45%
Pioneer Natural Resources Co.		10,893		1,056
Pharmaceuticals 3.44%
AstraZeneca plc ADR		36,397		2,030
Bristol-Myers Squibb Co.		36,369		2,133
Zoetis, Inc.		25,095		3,807
Total				7,970

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - DURABLE GROWTH FUND July 31, 2020

Investments	Shares		Fair Value (000)
Professional Services 0.88%
CoStar Group, Inc.*		2,394	$	2,034
Road & Rail 2.41%
J.B. Hunt Transport Services, Inc.		16,312		2,111
Norfolk Southern Corp.		7,540		1,449
Old Dominion Freight Line, Inc.		11,066		2,023
Total				5,583
Semiconductors & Semiconductor Equipment 6.79%
Analog Devices, Inc.		19,792		2,273
Lam Research Corp.		5,635		2,125
NVIDIA Corp.		10,623		4,510
NXP Semiconductors NV (Netherlands)(a)		11,353		1,334
QUALCOMM, Inc.		32,445		3,427
Xilinx, Inc.		19,270		2,069
Total				15,738
Software 15.31%
DocuSign, Inc.*		7,561		1,639
Microsoft Corp.		90,398		18,533
RingCentral, Inc. Class A*		13,141		3,814
salesforce.com, Inc.*		25,444		4,958
ServiceNow, Inc.*		8,243		3,620
Splunk, Inc.*		13,992		2,936
Total				35,500
Specialty Retail 2.97%
Burlington Stores, Inc.*		14,353		2,699
Home Depot, Inc. (The)		7,145		1,897
O’Reilly Automotive, Inc.*		4,827		2,304
Total				6,900
Technology Hardware, Storage & Peripheral 7.15%
Apple, Inc.		39,019		16,585
Textiles, Apparel & Luxury Goods 1.46%
NIKE, Inc. Class B		34,586		3,376
Total Common Stocks (cost $197,080,415)				230,208

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - DURABLE GROWTH FUND July 31, 2020

Investments	Principal Amount (000)		Fair Value (000)
SHORT-TERM INVESTMENT 0.41%
Repurchase Agreement
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $892,800 of U.S. Treasury Note at 2.25% due 4/30/2024; value: $967,153; proceeds: $948,141 (cost $948,141)	$	948	$	948
Total Investments in Securities 99.68% (cost $198,028,556)				231,156
Other Assets in Excess of Liabilities 0.32%				733
Net Assets 100.00%			$	231,889

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 July 31, 2020 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Common Stocks	$	230,208	$	—	$	—	$	230,208
Short-Term Investment
Repurchase Agreement		—		948		—		948
Total	$	230,208	$	948	$	—	$	231,156

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - FOCUSED GROWTH FUND July 31, 2020

Investments	Shares		Fair Value (000)
COMMON STOCKS 95.65%
Aerospace & Defense 1.68%
Axon Enterprise, Inc.*		4,391	$	365
Automobiles 2.93%
Tesla, Inc.*		445		637
Biotechnology 7.07%
Arena Pharmaceuticals, Inc.*		3,866		237
Argenx SE ADR*		1,267		292
Immunomedics, Inc.*		7,407		313
Mirati Therapeutics, Inc.*		1,743		211
Vertex Pharmaceuticals, Inc.*		1,776		483
Total				1,536
Diversified Consumer Services 2.90%
Chegg, Inc.*		7,787		630
Entertainment 4.87%
Netflix, Inc.*		1,251		612
Spotify Technology SA (Sweden)*(a)		1,738		448
Total				1,060
Health Care Equipment & Supplies 4.93%
DexCom, Inc.*		1,234		538
Nevro Corp.*		4,019		534
Total				1,072
Information Technology Services 12.31%
Mastercard, Inc. Class A		1,929		595
PayPal Holdings, Inc.*		3,832		752
Shopify, Inc. Class A (Canada)*(a)		596		610
Square, Inc. Class A*		5,539		719
Total				2,676
Interactive Media & Services 4.79%
Alphabet, Inc. Class A*		700		1,042

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - FOCUSED GROWTH FUND July 31, 2020

Investments	Shares		Fair Value (000)
Internet & Direct Marketing Retail 9.41%
Amazon.com, Inc.*		480	$	1,519
Chewy, Inc. Class A*		10,019		526
Total				2,045
Real Estate Management & Development 3.32%
Redfin Corp.*		17,379		723
Semiconductors & Semiconductor Equipment 9.90%
Advanced Micro Devices, Inc.*		11,226		869
Inphi Corp.*		3,980		520
NVIDIA Corp.		1,800		764
Total				2,153
Software 22.96%
Crowdstrike Holdings, Inc. Class A*		4,460		505
DocuSign, Inc.*		2,626		569
Five9, Inc.*		5,576		674
Microsoft Corp.		7,054		1,446
Paycom Software, Inc.*		1,101		313
SVMK, Inc.*		18,327		440
Trade Desk, Inc. (The) Class A*		1,247		563
Zoom Video Communications, Inc. Class A*		1,896		481
Total				4,991
Technology Hardware, Storage & Peripheral 5.95%
Apple, Inc.		3,042		1,293
Textiles, Apparel & Luxury Goods 2.63%
Lululemon Athletica, Inc. (Canada)*(a)		1,758		572
Total Common Stocks (cost $15,434,495)				20,795

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - FOCUSED GROWTH FUND July 31, 2020

Investments	Principal Amount (000)		Fair Value (000)
SHORT-TERM INVESTMENT 4.19%
Repurchase Agreement
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $816,900 of U.S. Treasury Note at 2.25% due 8/15/2027; value: $929,360; proceeds: $911,117 (cost $911,117)	$	911	$	911
Total Investments in Securities 99.84% (cost $16,345,612)				21,706
Other Assets in Excess of Liabilities 0.16%				35
Net Assets 100.00%			$	21,741

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 July 31, 2020 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Common Stocks	$	20,795	$	—	$	—	$	20,795
Short-Term Investment
Repurchase Agreement		—		911		—		911
Total	$	20,795	$	911	$	—	$	21,706

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - FOCUSED LARGE CAP VALUE FUND July 31, 2020

Investments	Shares		Fair Value (000)
COMMON STOCKS 99.04%
Aerospace & Defense 5.59%
General Dynamics Corp.		79,317	$	11,639
Raytheon Technologies Corp.		187,360		10,620
Total				22,259
Auto Components 2.53%
Lear Corp.		91,357		10,084
Banks 9.30%
Citigroup, Inc.		263,742		13,190
JPMorgan Chase & Co.		135,320		13,077
Wells Fargo & Co.		444,484		10,783
Total				37,050
Biotechnology 3.04%
AbbVie, Inc.		127,430		12,094
Capital Markets 9.58%
Ameriprise Financial, Inc.		98,446		15,124
Invesco Ltd.		1,194,528		11,993
KKR & Co., Inc. Class A		311,967		11,035
Total				38,152
Chemicals 6.36%
Dow, Inc.*		324,097		13,307
DuPont de Nemours, Inc.		224,846		12,025
Total				25,332
Consumer Finance 3.31%
Discover Financial Services		266,928		13,194
Diversified Telecommunication Services 2.07%
Verizon Communications, Inc.		143,186		8,230
Electric: Utilities 0.05%
PG&E Corp.*		19,397		181

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - FOCUSED LARGE CAP VALUE FUND July 31, 2020

Investments	Shares		Fair Value (000)
Electronic Equipment, Instruments & Components 2.47%
Avnet, Inc.		368,401	$	9,844
Energy Equipment & Services 1.25%
National Oilwell Varco, Inc.		432,926		4,983
Health Care Providers & Services 8.70%
CVS Health Corp.		183,762		11,566
McKesson Corp.		79,070		11,873
Universal Health Services, Inc. Class B		102,226		11,235
Total				34,674
Household Products 3.56%
Spectrum Brands Holdings, Inc.		261,922		14,186
Insurance 6.73%
Everest Re Group Ltd.		57,620		12,607
Hartford Financial Services Group, Inc. (The)		335,630		14,204
Total				26,811
Leisure Products 3.28%
Brunswick Corp.		195,272		13,079
Machinery 2.93%
Westinghouse Air Brake Technologies Corp.		187,542		11,663
Media 6.78%
Comcast Corp. Class A		294,140		12,589
Nexstar Media Group, Inc. Class A		164,751		14,441
Total				27,030
Metals & Mining 2.60%
Nucor Corp.		247,085		10,365
Oil, Gas & Consumable Fuels 4.54%
Marathon Petroleum Corp.		173,162		6,615
Noble Energy, Inc.		577,199		5,766
TOTAL SE ADR		151,534		5,707
Total				18,088

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - FOCUSED LARGE CAP VALUE FUND July 31, 2020

Investments	Shares		Fair Value (000)
Pharmaceuticals 2.90%
Bristol-Myers Squibb Co.		197,090	$	11,561
Semiconductors & Semiconductor Equipment 2.11%
Intel Corp.		176,281		8,414
Specialty Retail 6.52%
Lowe’s Cos., Inc.		95,108		14,163
TJX Cos., Inc. (The)		227,340		11,819
Total				25,982
Tobacco 2.84%
Altria Group, Inc.		274,626		11,301
Total Common Stocks (cost $351,051,340)				394,557
	Principal Amount (000)
SHORT-TERM INVESTMENT 0.78%
Repurchase Agreement
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $2,766,900 of U.S. Treasury Note at 2.25% due 08/15/2027; value: $3,147,810; proceeds: $3,085,987 (cost $3,085,987)	$	3,086		3,086
Total Investments in Securities 99.82% (cost $354,137,327)				397,643
Other Assets in Excess of Liabilities 0.18%				730
Net Assets 100.00%			$	398,373

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

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - FOCUSED LARGE CAP VALUE FUND July 31, 2020

The following is a summary of the inputs used as of July 31, 2020 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Common Stocks	$	394,557	$	—	$	—	$	394,557
Short-Term Investment
Repurchase Agreement		—		3,086		—		3,086
Total	$	394,557	$	3,086	$	—	$	397,643

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - FOCUSED SMALL CAP VALUE FUND July 31, 2020

Investments	Shares		Fair Value (000)
LONG-TERM INVESTMENTS 98.91%
COMMON STOCKS 98.23%
Aerospace & Defense 1.03%
Triumph Group, Inc.		114,191	$	774
Auto Components 2.66%
American Axle & Manufacturing Holdings, Inc.*		282,059		1,991
Automobiles 2.91%
Thor Industries, Inc.		19,177		2,186
Banks 14.39%
Bancorp, Inc. (The)*		249,956		2,357
BankUnited, Inc.		91,000		1,833
Cullen/Frost Bankers, Inc.		24,934		1,797
Pacific Premier Bancorp, Inc.		84,300		1,771
Sterling Bancorp		150,329		1,691
TCF Financial Corp.		48,796		1,341
Total				10,790
Building Products 4.40%
Masonite International Corp.*		39,144		3,302
Capital Markets 9.14%
Brightsphere Investment Group, Inc.*		165,993		2,231
Golub Capital BDC, Inc.		140,375		1,660
Moelis & Co. Class A		44,400		1,323
Victory Capital Holdings, Inc. Class A		92,569		1,643
Total				6,857
Chemicals 4.92%
AdvanSix, Inc.*		157,744		1,964
Axalta Coating Systems Ltd.*		77,817		1,728
Total				3,692

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - FOCUSED SMALL CAP VALUE FUND July 31, 2020

Investments	Shares		Fair Value (000)
Construction & Engineering 4.18%
Arcosa, Inc.		37,009	$	1,563
EMCOR Group, Inc.		22,992		1,575
Total				3,138
Consumer Finance 0.89%
Ally Financial, Inc.		33,173		667
Electronic Equipment, Instruments & Components 2.29%
Avnet, Inc.		64,386		1,720
Energy Equipment & Services 0.75%
Core Laboratories NV (Netherlands)(a)		26,261		560
Equity Real Estate Investment Trusts 3.93%
Outfront Media, Inc.		69,467		1,001
Sunstone Hotel Investors, Inc.		260,172		1,946
Total				2,947
Health Care Equipment & Supplies 1.12%
Natus Medical, Inc.*		44,996		836
Health Care Providers & Services 1.55%
AMN Healthcare Services, Inc.*		21,198		1,165
Household Products 2.99%
Spectrum Brands Holdings, Inc.		41,427		2,244
Insurance 4.68%
Axis Capital Holdings Ltd.		42,500		1,705
ProSight Global, Inc.*		229,662		1,805
Total				3,510
Leisure Products 3.46%
Malibu Boats, Inc. Class A*		44,200		2,598

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - FOCUSED SMALL CAP VALUE FUND July 31, 2020

Investments	Shares		Fair Value (000)
Machinery 10.09%
Alamo Group, Inc.		15,442	$	1,592
Blue Bird Corp.*		70,800		887
Columbus McKinnon Corp.		63,600		2,107
Hillenbrand, Inc.		102,052		2,983
Total				7,569
Media 2.65%
Nexstar Media Group, Inc. Class A		22,696		1,989
Metals & Mining 5.20%
Lundin Mining Corp.(b)	CAD	346,600		1,941
Worthington Industries, Inc.		52,307		1,957
Total				3,898
Oil, Gas & Consumable Fuels 2.87%
MEG Energy Corp.*(b)	CAD	166,900		441
Par Pacific Holdings, Inc.*		98,508		730
Parsley Energy, Inc. Class A		48,271		530
WPX Energy, Inc.*		75,795		453
Total				2,154
Real Estate Management & Development 1.66%
Realogy Holdings Corp.		137,375		1,245
Semiconductors & Semiconductor Equipment 4.58%
Advanced Energy Industries, Inc.*		19,100		1,405
Ichor Holdings Ltd.*		61,900		2,032
Total				3,437
Specialty Retail 1.02%
Williams-Sonoma, Inc.		8,791		766
Thrifts & Mortgage Finance 2.03%
Essent Group Ltd.		42,600		1,526

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - FOCUSED SMALL CAP VALUE FUND July 31, 2020

Investments	Shares		Fair Value (000)
Trading Companies & Distributors 2.84%
Beacon Roofing Supply, Inc.*		68,248	$	2,127
Total Common Stocks (cost $75,463,245)				73,688
	Principal Amount (000)
CORPORATE BONDS 0.67%
Oil, Gas & Consumable Fuels 0.67%
Centennial Resource Production LLC†(c) (cost $1,077,544)	$	1,100,000		501
SHORT-TERM INVESTMENT 1.01%
Repurchase Agreement
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $712,200 of U.S. Treasury Note at 2.25% due 4/30/2024; value: $771,513; proceeds: $756,350 (cost $756,350)		756		756
Total Investments in Securities 99.91% (cost $77,297,139)				74,945
Other Assets in Excess of Liabilities 0.09%				64
Net Assets 100.00%			$	75,009

CAD	Canadian dollar.
*	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 July 31, 2020, the total value of Rule 144A securities was $501, which represents 0.67% of net assets.
(a)	Foreign security traded in U.S. dollars.
(b)	Investment in non-U.S. dollar denominated securities.
(c)	The security has an interest rate 6.88% with a maturity of 4/01/2027.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - FOCUSED SMALL CAP VALUE FUND July 31, 2020

The following is a summary of the inputs used as of July 31, 2020 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)
Long-Term Investments
Common Stocks	$	73,688	$	—	$	—	$	73,688
Corporate Bonds		—		501		—		501
Short-Term Investment
Repurchase Agreement		—		756		—		756
Total	$	73,688	$	1,257	$	—	$	74,945

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - FUNDAMENTAL EQUITY FUND July 31, 2020

Investments	Shares		Fair Value (000)
COMMON STOCKS 99.44%
Aerospace & Defense 3.24%
General Dynamics Corp.		198,182	$	29,081
Raytheon Technologies Corp.		472,598		26,787
Total				55,868
Auto Components 0.96%
Lear Corp.		150,199		16,579
Automobiles 0.72%
General Motors Co.		496,100		12,348
Banks 7.71%
Citigroup, Inc.		710,234		35,519
East West Bancorp, Inc.		641,333		22,229
JPMorgan Chase & Co.		539,643		52,151
U.S. Bancorp		621,505		22,896
Total				132,795
Beverages 1.55%
PepsiCo, Inc.		194,466		26,770
Building Products 1.89%
Masco Corp.		568,590		32,501
Capital Markets 4.65%
Ameriprise Financial, Inc.		196,266		30,152
BlackRock, Inc.		40,585		23,337
E*TRADE Financial Corp.		522,377		26,521
Total				80,010
Chemicals 3.81%
Corteva, Inc.*		777,710		22,211
Dow, Inc.*		423,810		17,402
PPG Industries, Inc.		241,139		25,959
Total				65,572

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - FUNDAMENTAL EQUITY FUND July 31, 2020

Investments	Shares		Fair Value (000)
Consumer Finance 1.68%
American Express Co.		309,600	$	28,892
Diversified Telecommunication Services 2.46%
Verizon Communications, Inc.		737,510		42,392
Electric: Utilities 5.06%
Duke Energy Corp.		308,222		26,119
Edison International		455,798		25,374
FirstEnergy Corp.		412,900		11,974
NextEra Energy, Inc.		76,451		21,460
PG&E Corp.*		232,257		2,171
Total				87,098
Electrical Equipment 1.55%
Hubbell, Inc.		197,456		26,651
Electronic Equipment, Instruments & Components 0.91%
Avnet, Inc.		589,489		15,751
Energy Equipment & Services 0.53%
National Oilwell Varco, Inc.		796,645		9,169
Equity Real Estate Investment Trusts 3.26%
Alexandria Real Estate Equities, Inc.		136,225		24,187
Highwoods Properties, Inc.		212,364		8,142
Prologis, Inc.		225,157		23,736
Total				56,065
Food Products 0.69%
Danone SA(a)	EUR	176,400		11,807
Health Care Equipment & Supplies 3.81%
Alcon, Inc. (Switzerland)*(b)		443,752		26,616
Medtronic plc (Ireland)(b)		403,419		38,922
Total				65,538

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - FUNDAMENTAL EQUITY FUND July 31, 2020

Investments	Shares		Fair Value (000)
Health Care Providers & Services 3.98%
Anthem, Inc.		71,976	$	19,707
CVS Health Corp.		521,476		32,822
McKesson Corp.		106,673		16,018
Total				68,547
Household Products 3.40%
Colgate-Palmolive Co.		459,300		35,458
Procter & Gamble Co. (The)		176,363		23,125
Total				58,583
Industrial Conglomerates 2.27%
Honeywell International, Inc.		262,314		39,182
Information Technology Services 1.25%
Mastercard, Inc. Class A		69,800		21,535
Insurance 5.40%
American International Group, Inc.		610,122		19,609
Axis Capital Holdings Ltd.		391,716		15,716
Everest Re Group Ltd.		87,915		19,235
Globe Life, Inc.		212,400		16,907
Hartford Financial Services Group, Inc. (The)		509,666		21,569
Total				93,036
Interactive Media & Services 3.55%
Alphabet, Inc. Class A*		25,930		38,583
Facebook, Inc. Class A*		89,070		22,594
Total				61,177
Internet & Direct Marketing Retail 2.22%
Booking Holdings, Inc.*		10,286		17,097
eBay, Inc.		383,500		21,200
Total				38,297
Machinery 3.43%
Cummins, Inc.		167,400		32,352

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - FUNDAMENTAL EQUITY FUND July 31, 2020

Investments	Shares		Fair Value (000)
Machinery (continued)
Westinghouse Air Brake Technologies Corp.		428,657	$	26,658
Total				59,010
Media 3.14%
Comcast Corp. Class A		537,922		23,023
Fox Corp. Class A		774,600		19,961
Nexstar Media Group, Inc. Class A		125,750		11,022
Total				54,006
Metals & Mining 0.51%
Nucor Corp.		209,985		8,809
Multi-Utilities 1.29%
CMS Energy Corp.		345,700		22,187
Oil, Gas & Consumable Fuels 4.62%
Cabot Oil & Gas Corp.		944,000		17,653
Chevron Corp.		269,530		22,624
Marathon Petroleum Corp.		443,653		16,948
ONEOK, Inc.		252,362		7,043
TOTAL SE ADR		408,720		15,392
Total				79,660
Personal Products 1.34%
Unilever plc(a)	GBP	387,600		23,080
Pharmaceuticals 5.97%
Bristol-Myers Squibb Co.		573,416		33,637
Johnson & Johnson		149,197		21,747
Merck & Co., Inc.		272,649		21,877
Sanofi(a)	EUR	243,250		25,540
Total				102,801
Semiconductors & Semiconductor Equipment 3.10%
Intel Corp.		499,178		23,826
Texas Instruments, Inc.		232,497		29,655
Total				53,481

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - FUNDAMENTAL EQUITY FUND July 31, 2020

Investments	Shares		Fair Value (000)
Software 2.91%
Microsoft Corp.		128,500	$	26,344
Oracle Corp.		427,410		23,700
Total				50,044
Specialty Retail 3.10%
Lowe’s Cos., Inc.		192,500		28,665
TJX Cos., Inc. (The)		475,406		24,717
Total				53,382
Technology Hardware, Storage & Peripherals 1.97%
Apple, Inc.		79,800		33,918
Tobacco 1.51%
Philip Morris International, Inc.		338,762		26,020
Total Common Stocks (cost $1,540,308,935)				1,712,561
	Principal Amount (000)
SHORT-TERM INVESTMENT 0.46%
Repurchase Agreement
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $7,509,400 of U.S. Treasury Note at 2.25% due 04/30/2024; value: $8,134,790; proceeds: $7,975,264 (cost $7,975,264)	$	7,975		7,975
Total Investments in Securities 99.90% (cost $1,548,284,199)				1,720,536
Cash, Foreign Cash and Other Assets in Excess Liabilities 0.10%				1,748
Net Assets 100.00%			$	1,722,284

ADR	American Depositary Receipt.
EUR	Euro.
GBP	British pound.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - FUNDAMENTAL EQUITY FUND July 31, 2020

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

The following is a summary of the inputs used as of July 31, 2020 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
Food Products	$	—	$	11,807	$	—	$	11,807
Personal Products		—		23,080		—		23,080
Pharmaceuticals		77,261		25,540		—		102,801
Remaining Industries		1,574,873		—		—		1,574,873
Short-Term Investment
Repurchase Agreement		—		7,975		—		7,975
Total	$	1,652,134	$	68,402	$	—	$	1,720,536

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - GLOBAL EQUITY RESEARCH FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
COMMON STOCKS 98.57%
Australia 1.36%
Equity Real Estate Investment Trusts
Goodman Group		7,595	$	92
Belgium 1.19%
Banks
KBC Group NV		1,428		81
Brazil 1.16%
Metals & Mining
Vale SA		6,769		79
Canada 3.26%
Information Technology Services 1.28%
Shopify, Inc. *		85		87
Insurance 1.27%
Intact Financial Corp.		788		86
Oil, Gas & Consumable Fuels 0.71%
Pembina Pipeline Corp.		1,991		48
Total Canada				221
China 6.41%
Air Freight & Logistics 0.52%
ZTO Express Cayman, Inc. ADR		953		35
Gas Utilities 1.02%
ENN Energy Holdings Ltd.		5,692		69
Insurance 1.15%
Ping An Insurance Group Co. of China Ltd. Class H		7,353		78
Interactive Media & Services 1.76%
Tencent Holdings Ltd.		1,742		120
Internet & Direct Marketing Retail 1.96%
Alibaba Group Holding Ltd. ADR *		531		133
Total China				435

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - GLOBAL EQUITY RESEARCH FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Denmark 2.49%
Beverages 1.34%
Carlsberg AS Class B		616	$	91
Pharmaceuticals 1.15%
Novo Nordisk A/S Class B		1,189		78
Total Denmark				169
France 5.04%
Auto Components 0.87%
Cie Generale des Etablissements Michelin SCA		574		59
Multi-Utilities 1.03%
Engie SA *		5,261		70
Oil, Gas & Consumable Fuels 0.93%
Total SE		1,655		63
Personal Products 1.21%
L’Oreal SA		243		82
Textiles, Apparel & Luxury Goods 1.00%
LVMH Moet Hennessy Louis Vuitton SE		157		68
Total France				342
Germany 2.33%
Industrial Conglomerates 1.34%
Siemens AG Registered Shares		714		91
Semiconductors & Semiconductor Equipment 0.99%
Infineon Technologies AG		2,632		67
Total Germany				158
Hong Kong 0.77%
Real Estate Management & Development
Kerry Properties Ltd.		22,040		53
India 0.77%
Banks
ICICI Bank Ltd. ADR *		5,527		52
Italy 0.68%
Machinery
IMA Industria Macchine Automatiche SpA *		579		46

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - GLOBAL EQUITY RESEARCH FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Japan 4.71%
Building Products 1.46%
Sanwa Holdings Corp.		11,592	$	99
Construction & Engineering 1.03%
SHO-BOND Holdings Co. Ltd.		1,619		70
Electronic Equipment, Instruments & Components 2.22%
Azbil Corp.		2,621		87
Keyence Corp.		151		64
				151
Total Japan				320
Mexico 0.81%
Banks
Grupo Financiero Banorte SAB de CV		15,427		55
Russia 0.68%
Oil, Gas & Consumable Fuels
Lukoil PJSC ADR		679		46
South Africa 0.69%
Metals & Mining
Anglo American plc		1,956		47
South Korea 2.11%
Technology Hardware, Storage & Peripherals
Samsung Electronics Co., Ltd.		2,933		143
Spain 1.05%
Diversified Telecommunication Services
Cellnex Telecom SA †		1,129		71
Sweden 1.25%
Machinery
Sandvik AB *		4,555		85

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - GLOBAL EQUITY RESEARCH FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Switzerland 2.22%
Capital Markets 0.91%
UBS Group AG		5,252	$	62
Life Sciences Tools & Services 1.31%
Lonza Group AG		142		89
Total Switzerland				151
Taiwan 1.44%
Semiconductors & Semiconductor Equipment
Taiwan Semiconductor Manufacturing Co., Ltd.		6,709		98
United Kingdom 4.20%
Capital Markets 1.38%
London Stock Exchange Group plc		849		94
Insurance 1.06%
Prudential plc		5,044		72
Pharmaceuticals 1.18%
AstraZeneca plc ADR		1,433		80
Specialty Retail 0.58%
WH Smith plc		3,165		39
Total United Kingdom				285
United States 53.95%
Auto Components 1.41%
Lear Corp.		865		96
Banks 1.27%
JPMorgan Chase & Co.		893		86
Beverages 1.41%
Coca-Cola Co. (The)		2,036		96
Biotechnology 1.30%
Vertex Pharmaceuticals, Inc. *		322		88
Building Products 1.09%
Masco Corp.		1,285		74
Capital Markets 1.24%
MSCI, Inc.		224		84
Chemicals 1.10%
Axalta Coating Systems Ltd. *		3,376		75

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - GLOBAL EQUITY RESEARCH FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
United States (continued)
Consumer Finance 0.97%
Discover Financial Services		1,344	$	66
Electrical Equipment 1.12%
AMETEK, Inc.		813		76
Entertainment 1.08%
Netflix, Inc. *		150		73
Equity Real Estate Investment Trusts 1.27%
Alexandria Real Estate Equities, Inc.		484		86
Food & Staples Retailing 2.90%
Sysco Corp.		999		53
Walmart, Inc.		1,115		144
				197
Health Care Equipment & Supplies 0.75%
DexCom, Inc. *		118		51
Health Care Providers & Services 2.71%
CVS Health Corp.		1,636		103
UnitedHealth Group, Inc.		266		81
				184
Information Technology Services 2.67%
Mastercard, Inc. Class A		344		106
PayPal Holdings, Inc. *		383		75
				181
Interactive Media & Services 4.61%
Alphabet, Inc. Class A *		115		171
Facebook, Inc. Class A *		374		95
Snap, Inc. Class A *		2,086		47
				313
Internet & Direct Marketing Retail 3.83%
Amazon.com, Inc. *		82		260
Leisure Products 0.58%
Peloton Interactive, Inc. Class A *		577		39
Life Sciences Tools & Services 1.18%
Repligen Corp. *		529		80
Machinery 2.12%
Hillenbrand, Inc.		2,695		79
Stanley Black & Decker, Inc.		427		65
				144
Metals & Mining 0.84%
Worthington Industries, Inc.		1,514		57
Multi-Line Retail 1.37%
Dollar Tree, Inc. *		997		93

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - GLOBAL EQUITY RESEARCH FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
United States (continued)
Oil, Gas & Consumable Fuels 0.68%
Noble Energy, Inc.		4,592	$	46
Pharmaceuticals 3.28%
Merck & Co., Inc.		1,352		108
Zoetis, Inc.		757		115
				223
Road & Rail 1.41%
Norfolk Southern Corp.		499		96
Semiconductors & Semiconductor Equipment 1.80%
NVIDIA Corp.		287		122
Software 7.91%
Microsoft Corp.		1,101		226
RingCentral, Inc. Class A *		251		73
salesforce.com, Inc. *		442		86
Splunk, Inc. *		314		66
Trade Desk, Inc. (The) Class A *		191		86
				537
Specialty Retail 0.81%
TJX Cos., Inc. (The)		1,065		55
Tobacco 1.24%
Philip Morris International, Inc.		1,111		85
Total United States				3,663
Total Common Stocks (cost $5,975,487)				6,692
Cash, Foreign Cash and Other Assets in Excess Liabilities 1.43%				97
Net Assets 100.00%			$	6,789

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 July 31, 2020, the total value of Rule 144A securities was $71, which represents 1.05% of net assets.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - GLOBAL EQUITY RESEARCH FUND July 31, 2020

The following is a summary of the inputs used as of July 31, 2020 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
Australia	$	—	$	92	$	—	$	92
Belgium		—		81		—		81
Brazil		79		—		—		79
Canada		221		—		—		221
China		168		267		—		435
Denmark		—		169		—		169
France		—		342		—		342
Germany		—		158		—		158
Hong Kong		—		53		—		53
India		52		—		—		52
Italy		46		—		—		46
Japan		—		320		—		320
Mexico		55		—		—		55
Russia		—		46		—		46
South Africa		—		47		—		47
South Korea		—		143		—		143
Spain		—		71		—		71
Sweden		—		85		—		85
Switzerland		—		151		—		151
Taiwan		—		98		—		98
United Kingdom		80		205		—		285
United States		3,663		—		—		3,663
Total	$	4,364	$	2,328	$	—	$	6,692

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - GROWTH LEADERS FUND July 31, 2020

Investments	Shares		Fair Value (000)
COMMON STOCKS 97.60%
Aerospace & Defense 0.82%
Axon Enterprise, Inc.*		620,841	$	51,611
Air Freight & Logistics 0.28%
ZTO Express Cayman, Inc. ADR		482,543		17,878
Automobiles 2.01%
Tesla, Inc.*		88,276		126,302
Biotechnology 7.43%
Arena Pharmaceuticals, Inc.*		660,826		40,568
Argenx SE ADR*		129,665		29,840
Immunomedics, Inc.*		2,117,325		89,415
Iovance Biotherapeutics, Inc.*		968,921		28,166
Mirati Therapeutics, Inc.*		313,503		38,031
Regeneron Pharmaceuticals, Inc.*		37,244		23,541
Sarepta Therapeutics, Inc.*		249,824		38,353
Seattle Genetics, Inc.*		313,239		52,082
Turning Point Therapeutics, Inc.*		357,304		21,163
Vertex Pharmaceuticals, Inc.*		389,802		106,026
Total				467,185
Capital Markets 1.62%
MarketAxess Holdings, Inc.		101,531		52,461
MSCI, Inc.		130,756		49,162
Total				101,623
Communications Equipment 0.52%
Lumentum Holdings, Inc.*		353,751		32,839
Diversified Consumer Services 1.31%
Chegg, Inc.*		1,021,134		82,681

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - GROWTH LEADERS FUND July 31, 2020

Investments	Shares		Fair Value (000)
Electrical Equipment 1.39%
AMETEK, Inc.		355,288	$	33,131
Generac Holdings, Inc.*		346,379		54,582
Total				87,713
Entertainment 5.31%
Activision Blizzard, Inc.		716,325		59,190
Netflix, Inc.*		253,295		123,831
Roku, Inc.*		394,035		61,032
Spotify Technology SA (Sweden)*(a)		349,602		90,134
Total				334,187
Health Care Equipment & Supplies 5.00%
Danaher Corp.		205,333		41,847
DexCom, Inc.*		199,694		86,975
IDEXX Laboratories, Inc.*		171,676		68,284
Insulet Corp.*		163,369		33,223
Intuitive Surgical, Inc.*		63,673		43,644
Nevro Corp.*		305,450		40,612
Total				314,585
Health Care Technology 1.16%
Teladoc Health, Inc.*		306,751		72,893
Hotels, Restaurants & Leisure 1.39%
Chipotle Mexican Grill, Inc.*		51,880		59,930
DraftKings, Inc. Class A*(b)		825,691		27,557
Total				87,487
Information Technology Services 7.93%
Akamai Technologies, Inc.*		519,453		58,407
EPAM Systems, Inc.*		112,362		32,594
Mastercard, Inc. Class A		381,039		117,562
PayPal Holdings, Inc.*		504,733		98,963
Shopify, Inc. Class A (Canada)*(a)		98,860		101,233
Square, Inc. Class A*		692,168		89,878
Total				498,637

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - GROWTH LEADERS FUND July 31, 2020

Investments	Shares		Fair Value (000)
Interactive Media & Services 5.87%
Alphabet, Inc. Class A*		129,916	$	193,309
Facebook, Inc. Class A*		449,272		113,967
Match Group, Inc.*		605,993		62,235
Total				369,511
Internet & Direct Marketing Retail 9.56%
Alibaba Group Holding Ltd. ADR*		215,092		53,992
Amazon.com, Inc.*		133,614		422,846
Chewy, Inc. Class A*		1,291,741		67,803
MercadoLibre, Inc. (Argentina)*(a)		50,526		56,823
Total				601,464
Leisure Products 1.94%
Peloton Interactive, Inc. Class A*		1,025,724		69,975
YETI Holdings, Inc.*		1,063,976		52,018
Total				121,993
Life Sciences Tools & Services 0.49%
10X Genomics, Inc. Class A*		313,333		30,823
Pharmaceuticals 0.89%
Zoetis, Inc.		369,504		56,046
Professional Services 0.62%
TransUnion		436,856		39,129
Real Estate Management & Development 1.83%
Redfin Corp.*		2,765,449		114,987
Road & Rail 1.41%
Old Dominion Freight Line, Inc.		206,958		37,836
Uber Technologies, Inc.*		1,678,832		50,802
Total				88,638
Semiconductors & Semiconductor Equipment 8.58%
Advanced Micro Devices, Inc.*		1,301,801		100,799
Applied Materials, Inc.		468,520		30,140

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - GROWTH LEADERS FUND July 31, 2020

Investments	Shares		Fair Value (000)
Semiconductors & Semiconductor Equipment (continued)
Enphase Energy, Inc.*		293,722	$	17,729
Inphi Corp.*		691,050		90,293
Monolithic Power Systems, Inc.		248,119		65,754
NVIDIA Corp.		388,451		164,932
QUALCOMM, Inc.		663,274		70,048
Total				539,695
Software 21.72%
Adobe, Inc.*		130,210		57,855
Alteryx, Inc. Class A*		252,150		44,250
Avalara, Inc.*		220,224		29,609
Coupa Software, Inc.*		115,051		35,258
Crowdstrike Holdings, Inc. Class A*		1,042,714		118,035
DocuSign, Inc.*		604,679		131,113
Everbridge, Inc.*		165,154		23,584
Five9, Inc.*		704,067		85,065
Fortinet, Inc.*		256,653		35,495
Intuit, Inc.		93,744		28,720
Microsoft Corp.		1,685,791		345,604
Paycom Software, Inc.*		113,378		32,241
Paylocity Holding Corp.*		407,161		54,234
RingCentral, Inc. Class A*		285,294		82,812
SVMK, Inc.*		2,882,422		69,121
Trade Desk, Inc. (The) Class A*		179,613		81,063
Zoom Video Communications, Inc. Class A*		444,194		112,785
Total				1,366,844
Specialty Retail 0.74%
Carvana Co.*(b)		301,833		46,769
Technology Hardware, Storage & Peripherals 6.62%
Apple, Inc.		979,363		416,268
Textiles, Apparel & Luxury Goods 1.16%
Lululemon Athletica, Inc. (Canada)*(a)		224,187		72,993
Total Common Stocks (cost $4,130,719,354)				6,140,781

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - GROWTH LEADERS FUND July 31, 2020

Investments	Principal Amount (000)		Fair Value (000)
SHORT-TERM INVESTMENTS 4.05%
Repurchase Agreement 3.73%
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $114,068,300 of U.S. Treasury Note at 2.00% due 4/30/2024; $108,790,200 of U.S. Treasury Note at 2.00% due 5/31/2024; value: $239,146,225; proceeds: $234,456,989 (cost $234,456,989)	$	234,457	$	234,457

	Shares
Money Market Fund 0.29%
Fidelity Government Portfolio(c) (cost $18,328,950)		18,328,950		18,329
Time Deposit 0.03%
CitiBank N.A.(c) (cost $2,036,550)		2,036,550		2,036
Total Short-Term Investments (cost $254,822,489)				254,822
Total Investments in Securities 101.65% (cost $4,385,541,843)				6,395,603
Liabilities in Excess of Other Assets (1.65)%				(103,953	)
Net Assets 100.00%			$	6,291,650

ADR	American Depositary Receipt.
*	Non-income producing security.
(a)	Foreign security traded in U.S. dollars.
(b)	All or a portion of these securities are 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 July 31, 2020 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	$	6,140,781	$	—	$	—	$	6,140,781
Short-Term Investments
Repurchase Agreement		—		234,457		—		234,457
Money Market Fund		18,329		—		—		18,329
Time Deposit		—		2,036		—		2,036
Total	$	6,159,110	$	236,493	$	—	$	6,395,603

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - HEALTH CARE FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
COMMON STOCKS 92.56%
Belgium 1.59%
Pharmaceuticals
UCB SA		329	$	42
Denmark 4.27%
Biotechnology 1.48%
Genmab A/S*		114		39
Pharmaceuticals 2.79%
Novo Nordisk A/S Class B		1,125		74
Total Denmark				113
France 1.88%
Life Sciences Tools & Services 0.94%
Sartorius Stedim Biotech		79		25
Pharmaceuticals 0.94%
Sanofi		238		25
Total France				50
Germany 0.79%
Biotechnology
BioNTech SE ADR*		125		10
MorphoSys AG ADR*		340		11
Total Germany				21
Netherlands 1.40%
Biotechnology
Argenx SE*		115		26
uniQure NV*		255		11
Total Netherlands				37
Switzerland 6.00%
Health Care Equipment & Supplies 0.83%
Alcon, Inc.*		359		22
Life Sciences Tools & Services 2.60%
Lonza Group AG		81		50
Tecan Group AG		45		19
				69

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - HEALTH CARE FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Switzerland (continued)
Pharmaceuticals 2.57%
Roche Holding AG		196	$	68
Total Switzerland				159
United Kingdom 3.51%
Pharmaceuticals
AstraZeneca plc		732		81
GW Pharmaceuticals plc ADR*		94		12
Total United Kingdom				93
United States 73.12%
Biotechnology 24.99%
Acceleron Pharma, Inc.*		182		18
Allogene Therapeutics, Inc.*		397		14
Amgen, Inc.		287		70
Arena Pharmaceuticals, Inc.*		383		23
Black Diamond Therapeutics, Inc.*		433		12
Blueprint Medicines Corp.*		227		17
Bridgebio Pharma, Inc.*		591		17
ChemoCentryx, Inc.*		334		18
Coherus Biosciences, Inc.*		510		9
Constellation Pharmaceuticals, Inc.*		590		16
Emergent BioSolutions, Inc.*		140		16
Immunomedics, Inc.*		1,090		46
Insmed, Inc.*		603		16
Iovance Biotherapeutics, Inc.*		701		20
Karuna Therapeutics, Inc.*		168		14
Krystal Biotech, Inc.*		272		11
Mirati Therapeutics, Inc.*		194		23
Natera, Inc.*		484		23
PTC Therapeutics, Inc.*		182		8
Regeneron Pharmaceuticals, Inc.*		47		30
Rocket Pharmaceuticals, Inc.*		840		20
Sarepta Therapeutics, Inc.*		170		26
Seattle Genetics, Inc.*		216		36
Stoke Therapeutics, Inc.*		381		10
TG Therapeutics, Inc.*		1,151		22

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - HEALTH CARE FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
United States (continued)
Biotechnology (continued)
Turning Point Therapeutics, Inc.*		321	$	19
Twist Bioscience Corp.*		620		35
Vertex Pharmaceuticals, Inc.*		269		73
				662
Health Care Equipment & Supplies 20.35%
Abbott Laboratories		950		96
Align Technology, Inc.*		80		23
Axonics Modulation Technologies, Inc.*		441		19
Boston Scientific Corp.*		1,046		40
Cooper Cos., Inc. (The)		64		18
Danaher Corp.		361		74
DexCom, Inc.*		91		40
Edwards Lifesciences Corp.*		234		18
IDEXX Laboratories, Inc.*		86		34
Inari Medical, Inc.*		124		7
Insulet Corp.*		122		25
Intuitive Surgical, Inc.*		68		47
Nevro Corp.*		180		24
NuVasive, Inc.*		169		10
Penumbra, Inc.*		88		19
Silk Road Medical, Inc.*		276		13
Teleflex, Inc.		32		12
Zimmer Biomet Holdings, Inc.		151		20
				539
Health Care Providers & Services 7.63%
Anthem, Inc.		71		19
Centene Corp.*		497		32
CVS Health Corp.		679		43
Guardant Health, Inc.*		185		16
UnitedHealth Group, Inc.		303		92
				202
Health Care Technology 2.30%
Schrodinger, Inc.*		189		14
Teladoc Health, Inc.*		82		19
Veeva Systems, Inc. Class A*		104		28
				61

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - HEALTH CARE FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
United States (continued)
Internet & Direct Marketing Retail 1.06%
Chewy, Inc. Class A*		525	$	28
Life Sciences Tools & Services 8.76%
10X Genomics, Inc. Class A*		225		22
Adaptive Biotechnologies Corp.*		319		12
Bio-Rad Laboratories, Inc. Class A*		69		36
Charles River Laboratories International, Inc.*		104		21
Codexis, Inc.*		999		12
Quanterix Corp.*		422		14
Repligen Corp.*		194		29
Thermo Fisher Scientific, Inc.		209		86
				232
Pharmaceuticals 8.04%
Catalent, Inc.*		289		25
Johnson & Johnson		283		41
Merck & Co., Inc.		864		69
MyoKardia, Inc.*		171		16
Zoetis, Inc.		407		62
				213
Total United States				1,937
Total Common Stocks (cost $2,070,003)				2,452
	Principal Amount (000)
SHORT-TERM INVESTMENT 5.40%
Repurchase Agreement
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $128,400 of U.S. Treasury Note at 2.25% due 8/15/2027; value: $146,076; proceeds: $143,104 (cost $143,104)	$	143		143
Total Investments in Securities 97.96% (cost $2,213,107)				2,595
Other Assets in Excess of Liabilities 2.04%				54
Net Assets 100.00%			$	2,649

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - HEALTH CARE FUND July 31, 2020

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

The following is a summary of the inputs used as of July 31, 2020 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
Belgium	$	—	$	42	$	—	$	42
Denmark		—		113		—		113
France		—		50		—		50
Germany		21		—		—		21
Netherlands		11		26		—		37
Switzerland		22		137		—		159
United Kingdom		12		81		—		93
United States		1,937		—		—		1,937
Short-Term Investment
Repurchase Agreement		—		143		—		143
Total	$	2,003	$	592	$	—	$	2,595

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL EQUITY FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
LONG-TERM INVESTMENTS 97.32%
COMMON STOCKS 97.27%
Australia 3.36%
Capital Markets 1.11%
Macquarie Group Ltd.		48,634	$	4,274
Equity Real Estate Investment Trusts 0.93%
Goodman Group		293,323		3,566
Metals & Mining 1.32%
BHP Group Ltd.		193,737		5,101
Total Australia				12,941
Belgium 2.82%
Banks 0.87%
KBC Group NV		59,063		3,368
Beverages 0.87%
Anheuser-Busch InBev SA		61,440		3,336
Pharmaceuticals 1.08%
UCB SA		32,532		4,180
Total Belgium				10,884
Brazil 0.65%
Metals & Mining
Vale SA ADR		215,828		2,512
Canada 3.09%
Aerospace & Defense 0.52%
CAE, Inc.		134,500		2,007
Food & Staples Retailing 0.69%
Alimentation Couche-Tard, Inc. Class B		76,000		2,641
Insurance 0.70%
Intact Financial Corp.		24,500		2,675
Metals & Mining 0.32%
Lundin Mining Corp.		221,700		1,241
Oil, Gas & Consumable Fuels 0.86%
Pembina Pipeline Corp.		136,967		3,329
Total Canada				11,893

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL EQUITY FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
China 11.59%
Air Freight & Logistics 0.51%
ZTO Express Cayman, Inc. ADR		52,785	$	1,956
Banks 0.63%
China Construction Bank Corp. Class H		3,352,000		2,444
Beverages 0.82%
Budweiser Brewing Co. APAC Ltd.†		866,237		3,143
Information Technology Services 0.82%
GDS Holdings Ltd. ADR*		39,113		3,140
Insurance 1.20%
Ping An Insurance Group Co. of China Ltd. Class H		440,000		4,643
Interactive Media & Services 2.92%
Tencent Holdings Ltd.		164,200		11,264
Internet & Direct Marketing Retail 3.27%
Alibaba Group Holding Ltd. ADR*		50,208		12,603
Real Estate Management & Development 0.86%
Logan Group Co., Ltd.		1,921,000		3,329
Textiles, Apparel & Luxury Goods 0.56%
ANTA Sports Products Ltd.		226,000		2,146
Total China				44,668
Denmark 4.01%
Air Freight & Logistics 0.58%
DSV PANALPINA A/S		16,266		2,226
Beverages 1.14%
Carlsberg AS Class B		29,787		4,399
Biotechnology 1.08%
Genmab A/S*		12,066		4,153
Pharmaceuticals 1.21%
Novo Nordisk A/S Class B		71,158		4,669
Total Denmark				15,447
Finland 0.86%
Banks
Nordea Bank Abp*		426,849		3,297

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL EQUITY FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
France 10.54%
Aerospace & Defense 0.57%
Safran SA*		20,483	$	2,178
Auto Components 0.89%
Cie Generale des Etablissements Michelin SCA		32,966		3,414
Beverages 0.65%
Remy Cointreau SA (a)		15,548		2,494
Chemicals 1.40%
Air Liquide SA		32,845		5,402
Construction & Engineering 0.82%
Vinci SA		36,804		3,168
Electrical Equipment 0.82%
Schneider Electric SE		27,699		3,176
Life Sciences Tools & Services 0.39%
Sartorius Stedim Biotech		4,760		1,489
Multi-Utilities 0.67%
Engie SA*		194,283		2,584
Oil, Gas & Consumable Fuels 0.87%
Total SE		88,845		3,362
Personal Products 1.40%
L’Oreal SA		16,131		5,414
Pharmaceuticals 0.56%
Sanofi		20,584		2,161
Textiles, Apparel & Luxury Goods 1.50%
LVMH Moet Hennessy Louis Vuitton SE		13,333		5,798
Total France				40,640
Germany 6.99%
Air Freight & Logistics 1.10%
Deutsche Post AG Registered Shares*		104,549		4,244
Automobiles 0.72%
Volkswagen AG*		17,874		2,783
Chemicals 0.75%
Symrise AG		23,131		2,891
Insurance 1.14%
Allianz SE Registered Shares		21,144		4,387
Media 0.75%
Stroeer SE & Co. KGaA (a)		42,452		2,907
Software 1.79%
SAP SE		43,580		6,879

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL EQUITY FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Germany (continued)
Textiles, Apparel & Luxury Goods 0.74%
adidas AG*		10,384	$	2,864
Total Germany				26,955
Hong Kong 3.44%
Capital Markets 1.25%
Hong Kong Exchanges & Clearing Ltd.		100,800		4,800
Insurance 1.48%
AIA Group Ltd.		633,500		5,712
Machinery 0.71%
Techtronic Industries Co. Ltd.		261,500		2,735
Total Hong Kong				13,247
India 1.25%
Banks
HDFC Bank Ltd. ADR*		52,775		2,467
ICICI Bank Ltd. ADR*		251,045		2,358
Total India				4,825
Indonesia 0.57%
Banks
Bank Rakyat Indonesia Persero Tbk PT		10,162,600		2,207
Ireland 1.07%
Construction Materials
CRH plc		114,581		4,138
Japan 14.35%
Automobiles 1.41%
Toyota Motor Corp.		91,900		5,455
Banks 0.70%
Sumitomo Mitsui Financial Group, Inc.		101,100		2,694
Building Products 1.73%
Daikin Industries Ltd.		25,700		4,522
Sanwa Holdings Corp.		253,300		2,171
				6,693

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL EQUITY FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Japan (continued)
Commercial Services & Supplies 0.67%
Secom Co. Ltd.		29,900	$	2,586
Electrical Equipment 1.05%
Nidec Corp.		50,800		4,035
Electronic Equipment, Instruments & Components 3.90%
Hitachi Ltd.		62,600		1,875
Keyence Corp.		9,947		4,195
Murata Manufacturing Co., Ltd.		74,000		4,753
TDK Corp.		37,700		4,197
				15,020
Health Care Equipment & Supplies 1.17%
Hoya Corp.		45,700		4,507
Health Care Technology 0.27%
M3, Inc.		20,000		1,027
Household Durables 1.80%
Sony Corp.		89,500		6,954
Specialty Retail 0.65%
Fast Retailing Co. Ltd.		4,700		2,499
Trading Companies & Distributors 1.00%
ITOCHU Corp.		175,400		3,846
Total Japan				55,316
Netherlands 3.40%
Chemicals 1.08%
Akzo Nobel NV		43,938		4,140
Oil, Gas & Consumable Fuels 0.82%
Royal Dutch Shell plc A Shares		216,933		3,171
Semiconductors & Semiconductor Equipment 1.50%
ASML Holding NV		16,295		5,793
Total Netherlands				13,104
Peru 0.56%
Banks
Credicorp Ltd.		17,127		2,178
Russia 1.03%
Oil, Gas & Consumable Fuels
Lukoil PJSC ADR		58,332		3,957

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL EQUITY FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Singapore 0.48%
Banks
United Overseas Bank Ltd.		132,800	$	1,870
South Africa 1.10%
Metals & Mining
Anglo American plc		175,877		4,258
South Korea 2.66%
Personal Products 0.52%
LG Household & Health Care Ltd.		1,737		2,003
Technology Hardware, Storage & Peripherals 2.14%
Samsung Electronics Co., Ltd.		168,990		8,259
Total South Korea				10,262
Spain 1.96%
Diversified Telecommunication Services 0.74%
Cellnex Telecom SA†		45,627		2,872
Electric: Utilities 1.22%
Iberdrola SA		7,803		100
Iberdrola SA		355,112		4,590
				4,690
Total Spain				7,562
Sweden 1.68%
Machinery
Atlas Copco AB A Shares		62,410		2,770
Sandvik AB*		197,474		3,691
Total Sweden				6,461
Switzerland 8.61%
Capital Markets 1.11%
UBS Group AG		363,506		4,282
Food Products 2.33%
Nestle SA Registered Shares		75,608		8,991
Insurance 0.99%
Zurich Financial Services AG		10,265		3,796

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL EQUITY FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Switzerland (continued)
Life Sciences Tools & Services 2.49%
Lonza Group AG		12,176	$	7,614
Tecan Group AG		4,758		1,996
				9,610
Pharmaceuticals 1.69%
Roche Holding AG		18,795		6,510
Total Switzerland				33,189
Taiwan 3.69%
Machinery 0.70%
Airtac International Group		128,000		2,685
Semiconductors & Semiconductor Equipment 2.99%
MediaTek, Inc.		110,000		2,627
Taiwan Semiconductor Manufacturing Co., Ltd. ADR		113,049		8,918
				11,545
Total Taiwan				14,230
United Kingdom 4.75%
Capital Markets 1.04%
London Stock Exchange Group plc		36,342		4,014
Insurance 0.76%
Prudential plc		204,446		2,922
Personal Products 0.73%
Unilever plc		47,632		2,836
Pharmaceuticals 1.49%
AstraZeneca plc		51,912		5,735
Professional Services 0.73%
RELX plc		133,075		2,802
Total United Kingdom				18,309
United States 2.76%
Information Technology Services 1.68%
Accenture plc Class A		13,524		3,040
Fidelity National Information Services, Inc.		23,467		3,434
				6,474
Trading Companies & Distributors 1.08%
Ferguson plc		47,077		4,149
Total United States				10,623
Total Common Stocks (cost $323,741,700)				374,973

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL EQUITY FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
RIGHTS 0.05%
Spain
Diversified Telecommunication Services
Cellnex Telecom SA*(c) (cost $0)		45,627	$	191
Total Long-Term Investments (cost $323,741,700)				375,164
	Principal Amount (000)
SHORT-TERM INVESTMENTS 4.28%
Repurchase Agreement 2.84%
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $10,291,200 of U.S. Treasury Note at 2.25% due 4/30/2024; value: $11,148,261; proceeds: $10,929,660 (cost $10,929,660)	$	10,930		10,930
	Shares
Money Market Fund 1.30%
Fidelity Government Portfolio(b) (cost $5,000,460)		5,000,460		5,000
Time Deposit 0.14%
CitiBank N.A.(b) (cost $555,607)		555,607		556
Total Short-Term Investments (cost $16,485,727)				16,486
Total Investments in Securities 101.60% (cost $340,227,427)				391,650
Liabilities in Excess of Cash, Foreign Cash and Other Assets (1.60)%				(6,173	)
Net Assets 100.00%			$	385,477

ADR American Depositary Receipt.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL EQUITY FUND July 31, 2020

†	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 July 31, 2020, the total value of Rule 144A securities was $6,015,000, which represents 1.56% of net assets.
*	Non-income producing security.
(a)	All or a portion of these securities are temporarily on loan to unaffiliated broker/dealers.
(b)	Security was purchased with the cash collateral from loaned securities.
(c)	Exercise price of 39.45 EUR and expiration date of 8/10/2021.

The following is a summary of the inputs used as of July 31, 2020 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)
Long-Term Investments
Common Stocks
Australia	$	—	$	12,941	$	—	$	12,941
Belgium		—		10,884		—		10,884
Brazil		2,512		—		—		2,512
Canada		11,893		—		—		11,893
China		17,699		26,969		—		44,668
Denmark		—		15,447		—		15,447
Finland		—		3,297		—		3,297
France		—		40,640		—		40,640
Germany		—		26,955		—		26,955
Hong Kong		—		13,247		—		13,247
India		4,825		—		—		4,825
Indonesia		—		2,207		—		2,207
Ireland		—		4,138		—		4,138
Japan		—		55,316		—		55,316
Netherlands		—		13,104		—		13,104
Peru		2,178		—		—		2,178
Russia		—		3,957		—		3,957
Singapore		—		1,870		—		1,870
South Africa		—		4,258		—		4,258
South Korea		—		10,262		—		10,262
Spain		—		7,562		—		7,562
Sweden		—		6,461		—		6,461
Switzerland		—		33,189		—		33,189
Taiwan		8,918		5,312		—		14,230
United Kingdom		—		18,309		—		18,309
United States		6,474		4,149		—		10,623
Right		191		—		—		191
Short-Term Investments
Repurchase Agreement		—		10,930		—		10,930
Money Market Fund		5,000		—		—		5,000
Time Deposit		—		556		—		556
Total	$	59,690	$	331,960	$	—	$	391,650

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL OPPORTUNITIES FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
COMMON STOCKS 97.16%
Australia 4.44%
Auto Components 0.58%
GUD Holdings Ltd.		294,528	$	2,350
Diversified Financial Services 0.74%
Omni Bridgeway Ltd.		906,228		2,966
Electric: Utilities 1.56%
AusNet Services		4,936,100		6,307
Food Products 1.01%
Costa Group Holdings Ltd.		1,917,452		4,074
Professional Services 0.55%
IPH Ltd.		415,373		2,201
Total Australia				17,898
Austria 3.73%
Banks 1.35%
BAWAG Group AG*†		148,122		5,438
Electronic Equipment, Instruments & Components 1.09%
AT&S Austria Technologie & Systemtechnik AG		232,688		4,401
Machinery 1.29%
ANDRITZ AG		155,638		5,225
Total Austria				15,064
Belgium 1.31%
Equity Real Estate Investment Trusts 0.78%
Warehouses De Pauw CVA		97,414		3,135
Wireless Telecommunication Services 0.53%
Orange Belgium SA		128,637		2,154
Total Belgium				5,289
Canada 1.86%
Aerospace & Defense 0.67%
CAE, Inc.		180,200		2,690
Paper & Forest Products 1.19%
Interfor Corp.*		414,600		4,813
Total Canada				7,503

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL OPPORTUNITIES FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Chile 0.93%
Metals & Mining
Lundin Mining Corp.		670,000	$	3,752
Denmark 1.39%
Machinery
FLSmidth & Co. A/S*		187,323		5,590
France 1.63%
Construction Materials 0.62%
Vicat SA		75,301		2,483
Health Care Providers & Services 1.01%
Korian SA*		99,525		4,080
Total France				6,563
Germany 7.42%
Biotechnology 0.95%
MorphoSys AG*		29,905		3,839
Industrial Conglomerates 1.67%
Rheinmetall AG		71,257		6,737
Life Sciences Tools & Services 1.60%
Gerresheimer AG		56,185		6,463
Media 0.66%
Stroeer SE & Co. KGaA (a)		39,032		2,673
Real Estate Management & Development 2.54%
LEG Immobilien AG*		27,426		3,824
PATRIZIA AG		234,313		6,423
				10,247
Total Germany				29,959
Hong Kong 4.40%
Auto Components 1.37%
Xinyi Glass Holdings Ltd.		3,770,000		5,531
Consumer Finance 0.33%
Sun Hung Kai & Co., Ltd.		3,381,000		1,305
Hotels, Restaurants & Leisure 0.91%
Melco International Development Ltd.		1,950,000		3,681
Pharmaceuticals 0.35%
SSY Group Ltd.		2,212,000		1,398

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL OPPORTUNITIES FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Hong Kong (continued)
Real Estate Management & Development 0.32%
Kerry Properties Ltd.		545,500	$	1,298
Semiconductors & Semiconductor Equipment 0.66%
ASM Pacific Technology Ltd.		236,200		2,666
Textiles, Apparel & Luxury Goods 0.46%
Stella International Holdings Ltd.		1,918,432		1,866
Total Hong Kong				17,745
Iceland 1.23%
Machinery
Marel HF†		948,430		4,979
Ireland 3.92%
Equity Real Estate Investment Trusts 0.88%
Hibernia REIT plc		2,650,135		3,546
Health Care Providers & Services 1.32%
UDG Healthcare plc		575,900		5,347
Household Durables 0.42%
Glenveagh Properties plc*†		2,059,635		1,698
Information Technology Services 1.30%
Keywords Studios plc		209,923		5,227
Total Ireland				15,818
Italy 7.88%
Auto Components 1.38%
Freni Brembo SpA*		614,058		5,562
Capital Markets 1.80%
Anima Holding SpA†		1,609,034		7,259
Construction Materials 1.09%
Buzzi Unicem SpA		194,369		4,422
Diversified Financial Services 0.63%
doValue SpA*†(a)		231,033		2,542
Machinery 2.32%
IMA Industria Macchine Automatiche SpA*(a)		117,760		9,363
Textiles, Apparel & Luxury Goods 0.66%
Brunello Cucinelli SpA*		57,404		1,666
Salvatore Ferragamo SpA*		73,342		988
				2,654
Total Italy				31,802

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL OPPORTUNITIES FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Japan 23.37%
Auto Components 0.93%
FCC Co., Ltd.		243,500	$	3,768
Building Products 1.35%
Sanwa Holdings Corp.		636,300		5,453
Chemicals 0.66%
Kansai Paint Co., Ltd.		139,200		2,668
Construction & Engineering 1.95%
SHO-BOND Holdings Co. Ltd.		182,600		7,875
Distributors 1.20%
PALTAC Corp.		89,400		4,842
Electronic Equipment, Instruments & Components 3.40%
Azbil Corp.		319,500		10,651
Taiyo Yuden Co., Ltd.		96,500		3,059
				13,710
Entertainment 1.76%
Capcom Co., Ltd.		180,400		7,090
Equity Real Estate Investment Trusts 2.51%
GLP J-REIT		2,600		4,337
Nippon Prologis REIT, Inc.		1,673		5,775
				10,112
Food Products 1.07%
Nichirei Corp.		151,000		4,311
Information Technology Services 1.82%
BASE, Inc.*		37,800		2,332
TIS, Inc.		234,600		5,024
				7,356
Machinery 1.91%
CKD Corp.		153,900		2,970
OSG Corp.		347,800		4,739
				7,709
Professional Services 0.75%
TechnoPro Holdings, Inc.		59,100		3,020
Real Estate Management & Development 0.60%
Kenedix, Inc.		534,500		2,431
Software 0.82%
Money Forward, Inc.*		49,100		3,305
Specialty Retail 1.08%
Bic Camera, Inc.		336,400		3,390
United Arrows Ltd.		73,400		969
				4,359

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL OPPORTUNITIES FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Japan (continued)
Thrifts & Mortgage Finance 0.44%
Aruhi Corp.		138,700	$	1,784
Wireless Telecommunication Services 1.12%
Okinawa Cellular Telephone Co.		112,600		4,508
Total Japan				94,301
Netherlands 0.37%
Biotechnology
uniQure NV*		36,208		1,511
Norway 0.51%
Software
Pexip Holding ASA*		223,395		2,062
Portugal 1.60%
Multi-Utilities
REN - Redes Energeticas Nacionais SGPS SA		2,241,381		6,448
South Korea 3.17%
Food & Staples Retailing 0.73%
GS Retail Co., Ltd.		103,000		2,973
Semiconductors & Semiconductor Equipment 0.98%
WONIK IPS Co., Ltd.*		121,920		3,947
Software 1.46%
Douzone Bizon Co. Ltd.		66,737		5,884
Total South Korea				12,804
Spain 2.24%
Containers & Packaging 1.29%
Vidrala SA		47,590		5,219
Professional Services 0.95%
Applus Services SA*		494,030		3,829
Total Spain				9,048

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL OPPORTUNITIES FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Sweden 2.14%
Auto Components 0.83%
Dometic Group AB*†		343,004	$	3,349
Commercial Services & Supplies 0.73%
Loomis AB*		123,442		2,949
Food & Staples Retailing 0.58%
Axfood AB		102,997		2,318
Total Sweden				8,616
Switzerland 5.41%
Airlines 0.85%
Wizz Air Holdings plc*†		82,268		3,450
Containers & Packaging 1.20%
SIG Combibloc Group AG*		276,589		4,839
Insurance 0.62%
Swiss Life Holding AG*		6,842		2,501
Life Sciences Tools & Services 1.50%
Tecan Group AG		14,397		6,038
Machinery 1.24%
Sulzer AG		60,459		5,013
Total Switzerland				21,841
Taiwan 1.84%
Semiconductors & Semiconductor Equipment
Realtek Semiconductor Corp.		501,000		6,392
Visual Photonics Epitaxy Co., Ltd.		356,000		1,052
				7,444
United Arab Emirates 1.18%
Information Technology Services
Network International Holdings plc*†		901,185		4,757
United Kingdom 12.72%
Aerospace & Defense 0.43%
Senior plc		2,558,219		1,737
Beverages 1.16%
Britvic plc		451,277		4,691

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL OPPORTUNITIES FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
United Kingdom (continued)
Capital Markets 1.20%
Man Group plc		3,008,728	$	4,854
Construction Materials 1.33%
Breedon Group plc*		5,413,953		5,386
Consumer Finance 0.27%
Arrow Global Group plc		1,079,979		1,069
Equity Real Estate Investment Trusts 0.53%
UNITE Group plc (The)*		174,039		2,136
Insurance 1.75%
Lancashire Holdings Ltd.		695,702		7,042
Internet & Direct Marketing Retail 1.04%
ASOS plc*		95,969		4,198
Machinery 0.92%
Concentric AB*		216,977		3,711
Media 0.49%
S4 Capital plc*		442,072		1,996
Multi-Line Retail 1.57%
B&M European Value Retail SA		1,052,679		6,329
Pharmaceuticals 0.72%
Dechra Pharmaceuticals plc		77,533		2,885
Specialty Retail 0.56%
WH Smith plc		184,369		2,266
Trading Companies & Distributors 0.75%
Grafton Group plc Unit		361,137		3,024
Total United Kingdom				51,324
United States 2.47%
Exchange- Traded Funds
VanEck Vectors Junior Gold Miners		165,038		9,975
Total Common Stocks (cost $380,490,074)				392,093

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL OPPORTUNITIES FUND July 31, 2020

Investments	Principal Amount (000)		U.S. $ Fair Value (000)
SHORT-TERM INVESTMENTS 3.12%
Repurchase Agreement 0.44%
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $1,700,100 of U.S. Treasury Note at 2.25% due 4/30/2024; value: $1,841,686; proceeds: $1,805,488 (cost $1,805,488)	$	1,806	$	1,806
	Shares
Money Market Fund 2.41%
Fidelity Government Portfolio(b) (cost $9,721,765)		9,721,765		9,722
Time Deposit 0.27%
CitiBank N.A.(b) (cost $1,080,197)		1,080,197		1,080
Total Short-Term Investments (cost $12,607,450)				12,608
Total Investments in Securities 100.28% (cost $393,097,524)				404,701
Liabilities in Excess of Foreign Cash and Other Assets(c) (0.28)%				(1,132	)
Net Assets 100.00%			$	403,569

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 July 31, 2020, the total value of Rule 144A securities was $33,472, which represents 8.29% of net assets.
(a)	All or a portion of these securities are 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 depreciation on Total return swaps as follows:

Open Total Return Swap Contracts at July 31, 2020:

Swap Counterparty	Referenced Index*	Referenced Spread	Units	Position	Termination Date	Notional Amount	Notional Value	Unrealized Depreciation
Bank of America	MLEILAEN	1 Mo. LIBOR +.36%	94,118	Long	6/11/2021	$6,061,199	$5,990,846	$(70,353)

* Merrill Lynch Custom Basket Index.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL OPPORTUNITIES FUND July 31, 2020

The following is a summary of the inputs used as of July 31, 2020 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	$	7,503	$	—		$	—	$	7,503
Chile		3,752		—			—		3,752
France		2,483		4,080			—		6,563
Ireland		8,773		7,045			—		15,818
Italy		13,571		18,231			—		31,802
Netherlands		1,511		—			—		1,511
Norway		2,062		—			—		2,062
Sweden		2,949		5,667			—		8,616
United Kingdom		8,451		42,873			—		51,324
United States		9,975		—			—		9,975
Remaining Countries		—		253,167			—		253,167
Short-Term Investments
Repurchase Agreement		—		1,806			—		1,806
Money Market Fund		9,722		—			—		9,722
Time Deposit		—		1,080			—		1,080
Total	$	70,752	$	333,949		$	—	$	404,701
Other Financial Instruments
Total Return Swap Contracts
Assets	$	—	$	—		$	—	$	—
Liabilities		—		(70	)		—		(70	)
Total	$	—	$	(70	)	$	—	$	(70	)

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL VALUE FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
COMMON STOCKS 97.18%
Australia 5.26%
Banks 1.57%
National Australia Bank Ltd.		592,902	$	7,402
Capital Markets 0.92%
Macquarie Group Ltd.		49,085		4,314
Equity Real Estate Investment Trusts 0.97%
Goodman Group		376,125		4,573
Metals & Mining 1.80%
BHP Group Ltd.		322,014		8,478
Total Australia				24,767
Austria 1.31%
Banks
BAWAG Group AG*†		167,557		6,151
Belgium 2.26%
Beverages 1.36%
Anheuser-Busch InBev SA		117,682		6,390
Pharmaceuticals 0.90%
UCB SA		33,198		4,266
Total Belgium				10,656
Brazil 0.90%
Metals & Mining
Vale SA ADR		363,811		4,235
Canada 3.11%
Banks 1.05%
Royal Bank of Canada		71,400		4,925
Metals & Mining 0.78%
Lundin Mining Corp.		653,655		3,660
Oil, Gas & Consumable Fuels 1.28%
Pembina Pipeline Corp.		249,033		6,052
Total Canada				14,637
Chile 0.53%
Water Utilities
Aguas Andinas SA		7,164,165		2,519

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL VALUE FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
China 4.31%
Banks 0.14%
China Construction Bank Corp. Class H		916,000	$	668
Construction Materials 1.09%
China Resources Cement Holdings Ltd.		3,734,000		5,112
Internet & Direct Marketing Retail 1.11%
Alibaba Group Holding Ltd. ADR*		20,791		5,219
Oil, Gas & Consumable Fuels 1.00%
CNOOC Ltd.		4,478,000		4,727
Real Estate Management & Development 0.97%
Logan Group Co., Ltd.		2,640,000		4,575
Total China				20,301
France 15.60%
Aerospace & Defense 0.91%
Safran SA*		40,144		4,269
Banks 1.89%
Credit Agricole SA*		922,465		8,879
Building Products 1.50%
Cie de Saint-Gobain*		191,002		7,066
Construction & Engineering 1.30%
Vinci SA		71,011		6,112
Diversified Telecommunication Services 1.05%
Orange SA		422,875		4,956
Food Products 1.12%
Danone SA		78,617		5,262
Gas Utilities 0.78%
Rubis SCA		78,077		3,683
Insurance 1.56%
AXA SA		366,417		7,352
Multi-Utilities 1.25%
Engie SA*		443,476		5,908
Oil, Gas & Consumable Fuels 1.11%
Total SE		138,673		5,248
Pharmaceuticals 3.13%
Sanofi		140,200		14,721
Total France				73,456
Germany 10.72%
Air Freight & Logistics 1.81%
Deutsche Post AG Registered Shares*		210,124		8,529
Auto Components 0.97%
Continental AG		47,526		4,591

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL VALUE FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Germany (continued)
Automobiles 1.37%
Volkswagen AG*		41,599	$	6,477
Industrial Conglomerates 1.55%
Siemens AG Registered Shares		57,188		7,288
Insurance 2.04%
Allianz SE Registered Shares		46,249		9,595
Machinery 0.95%
KION Group AG		58,350		4,459
Media 0.67%
Stroeer SE & Co. KGaA (a)		46,005		3,150
Pharmaceuticals 0.52%
Bayer AG Registered Shares		37,002		2,458
Semiconductors & Semiconductor Equipment 0.84%
Infineon Technologies AG		154,639		3,943
Total Germany				50,490
Hong Kong 3.24%
Auto Components 1.16%
Xinyi Glass Holdings Ltd.		3,732,000		5,475
Electric: Utilities 0.87%
CK Infrastructure Holdings Ltd.		782,000		4,078
Real Estate Management & Development 1.21%
Kerry Properties Ltd.		2,396,000		5,702
Total Hong Kong				15,255
Italy 0.63%
Auto Components
Freni Brembo SpA (a)		326,964		2,961
Japan 16.20%
Automobiles 1.78%
Toyota Motor Corp.		141,200		8,382
Banks 1.63%
Sumitomo Mitsui Financial Group, Inc.		288,500		7,687
Beverages 1.35%
Asahi Group Holdings Ltd.		194,400		6,337
Building Products 1.48%
Sanwa Holdings Corp.		815,800		6,991
Diversified Financial Services 1.12%
ORIX Corp.		487,600		5,273

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL VALUE FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Japan (continued)
Electronic Equipment, Instruments & Components 2.65%
Hitachi Ltd.		149,700	$	4,484
TDK Corp.		71,800		7,994
				12,478
Household Durables 1.91%
Sony Corp.		115,500		8,974
Insurance 1.16%
Tokio Marine Holdings, Inc.		128,900		5,443
Trading Companies & Distributors 1.46%
ITOCHU Corp.		312,800		6,859
Wireless Telecommunication Services 1.66%
SoftBank Group Corp.		124,200		7,834
Total Japan				76,258
Macau 1.18%
Hotels, Restaurants & Leisure
Sands China Ltd.		1,462,000		5,574
Mexico 0.61%
Banks
Grupo Financiero Banorte SAB de CV		795,266		2,855
Netherlands 1.76%
Oil, Gas & Consumable Fuels
Royal Dutch Shell plc Class A ADR(a)		278,221		8,294
New Zealand 1.13%
Diversified Telecommunication Services
Spark New Zealand Ltd.		1,616,820		5,299
Peru 0.45%
Banks
Credicorp Ltd.		16,648		2,117
Russia 1.26%
Oil, Gas & Consumable Fuels
Lukoil PJSC ADR		87,115		5,909

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL VALUE FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Singapore 0.78%
Electronic Equipment, Instruments & Components
Venture Corp. Ltd.		282,300	$	3,687
South Africa 2.37%
Metals & Mining
Anglo American plc		461,028		11,161
South Korea 2.01%
Technology Hardware, Storage & Peripherals
Samsung Electronics Co., Ltd.		194,102		9,486
Sweden 1.13%
Commercial Services & Supplies 0.79%
Loomis AB*		155,141		3,707
Machinery 0.34%
Sandvik AB*		87,318		1,632
Total Sweden				5,339
Switzerland 6.79%
Capital Markets 1.95%
UBS Group AG		778,917		9,176
Insurance 1.89%
Swiss Life Holding AG*		7,113		2,599
Zurich Financial Services AG		17,086		6,319
				8,918
Pharmaceuticals 2.95%
Novartis AG Registered Shares		77,243		6,362
Roche Holding AG		21,696		7,515
				13,877
Total Switzerland				31,971
Taiwan 0.68%
Semiconductors & Semiconductor Equipment
Realtek Semiconductor Corp.		250,000		3,190

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL VALUE FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
United Kingdom 11.64%
Aerospace & Defense 1.10%
BAE Systems plc		809,581	$	5,188
Hotels, Restaurants & Leisure 0.83%
GVC Holdings plc		451,842		3,910
Household Durables 1.05%
Persimmon plc*		157,592		4,920
Insurance 2.78%
Prudential plc		467,000		6,674
RSA Insurance Group plc		1,147,061		6,402
				13,076
Multi-Utilities 1.39%
National Grid plc		559,832		6,568
Pharmaceuticals 1.38%
AstraZeneca plc		58,966		6,515
Tobacco 2.24%
British American Tobacco plc		211,435		6,988
Imperial Brands plc		212,655		3,543
				10,531
Trading Companies & Distributors 0.87%
Ashtead Group plc		128,536		4,093
Total United Kingdom				54,801
United States 1.32%
Auto Components 0.79%
Lear Corp.		33,559		3,704
Trading Companies & Distributors 0.53%
Ferguson plc		28,323		2,497
Total United States				6,201
Total Common Stocks (cost $463,089,174)				457,570

	Principal Amount (000)
SHORT-TERM INVESTMENTS 2.85%
Repurchase Agreement 1.83%
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $8,179,600 of U.S. Treasury Note at 2.00% due 4/30/2024; value: $8,781,569; proceeds: $8,609,366 (cost $8,609,366)	$	8,609	8,609

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - INTERNATIONAL VALUE FUND July 31, 2020

Investments	Shares		U.S. $ Fair Value (000)
Money Market Fund 0.92%
Fidelity Government Portfolio(b) (cost $4,344,170)		4,344,170	$	4,344
Time Deposit 0.10%
CitiBank N.A.(b) (cost $482,686)		482,686		483
Total Short-Term Investments (cost $13,436,222)				13,436
Total Investments in Securities 100.03% (cost $476,525,396)				471,006
Liabilities in Excess of Foreign Cash and Other Assets (0.03)%				(139	)
Net Assets 100.00%			$	470,867

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 July 31, 2020, the total value of Rule 144A securities was $6,151, which represents 1.31% of net assets.
(a)	All or a portion of this security was on loan to brokers at July 31, 2020.
(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 - INTERNATIONAL VALUE FUND July 31, 2020

The following is a summary of the inputs used as of July 31, 2020 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
Australia	$	—	$	24,767	$	—	$	24,767
Austria		—		6,151		—		6,151
Belgium		—		10,656		—		10,656
Brazil		4,235		—		—		4,235
Canada		14,637		—		—		14,637
Chile		2,519		—		—		2,519
China		5,219		15,082		—		20,301
France		—		73,456		—		73,456
Germany		—		50,490		—		50,490
Hong Kong		—		15,255		—		15,255
Italy		—		2,961		—		2,961
Japan		—		76,258		—		76,258
Macau		—		5,574		—		5,574
Mexico		2,855		—		—		2,855
Netherlands		8,294		—		—		8,294
New Zealand		—		5,299		—		5,299
Peru		2,117		—		—		2,117
Russia		—		5,909		—		5,909
Singapore		—		3,687		—		3,687
South Africa		—		11,161		—		11,161
South Korea		—		9,486		—		9,486
Sweden		3,707		1,632		—		5,339
Switzerland		—		31,971		—		31,971
Taiwan		—		3,190		—		3,190
United Kingdom		—		54,801		—		54,801
United States		3,704		2,497		—		6,201
Short-Term Investments
Repurchase Agreement		—		8,609		—		8,609
Money Market Fund		4,344		—		—		4,344
Time Deposit		—		483		—		483
Total	$	51,631	$	419,375	$	—	$	471,006

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - MICRO CAP GROWTH FUND July 31, 2020

Investments	Shares		Fair Value (000)
COMMON STOCKS 99.99%
Aerospace & Defense 0.92%
AeroVironment, Inc.*		11,445	$	876
Biotechnology 18.03%
Adaptimmune Therapeutics plc ADR*		91,727		858
Alector, Inc.*		23,505		368
Aurinia Pharmaceuticals, Inc. (Canada)*(a)		54,482		770
Beam Therapeutics, Inc.*(b)		25,786		499
Black Diamond Therapeutics, Inc.*		22,240		619
Castle Biosciences, Inc.*		20,095		778
ChemoCentryx, Inc.*		9,742		513
Coherus Biosciences, Inc.*		21,282		374
Deciphera Pharmaceuticals, Inc.*		10,390		482
Denali Therapeutics, Inc.*		21,708		508
Eidos Therapeutics, Inc.*		19,199		770
Insmed, Inc.*		31,016		810
Karuna Therapeutics, Inc.*		10,422		853
Krystal Biotech, Inc.*		17,168		709
Myovant Sciences Ltd. (United Kingdom)*(a)		76,712		1,166
REVOLUTION Medicines, Inc.*		13,627		329
Rocket Pharmaceuticals, Inc.*		46,923		1,104
Stoke Therapeutics, Inc.*		16,392		413
TG Therapeutics, Inc.*		84,443		1,653
Turning Point Therapeutics, Inc.*		17,840		1,057
Twist Bioscience Corp.*		31,173		1,747
Veracyte, Inc.*		21,152		754
Total				17,134
Capital Markets 1.13%
Assetmark Financial Holdings, Inc.*		38,486		1,072
Commercial Services & Supplies 1.08%
Montrose Environmental Group, Inc.*		47,108		1,025

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - MICRO CAP GROWTH FUND July 31, 2020

Investments	Shares		Fair Value (000)
Communications Equipment 3.86%
AudioCodes Ltd. (Ireland)(a)		21,028	$	759
Calix, Inc.*		142,104		2,915
Total				3,674
Construction & Engineering 0.49%
Ameresco, Inc. Class A*		16,743		463
Diversified Financial Services 0.93%
Insurance Acquisition Corp. Class A*		44,452		476
Landcadia Holdings II, Inc. Class A*		35,330		406
Total				882
Electrical Equipment 0.83%
Vivint Solar, Inc.*		38,857		790
Electronic Equipment, Instruments & Components 1.68%
nLight, Inc.*		42,166		977
Wrap Technologies, Inc.*(b)		62,871		616
Total				1,593
Entertainment 0.84%
Glu Mobile, Inc.*		43,439		410
LiveXLive Media, Inc.*(b)		127,330		386
Total				796
Food Products 1.04%
Vital Farms, Inc.*		28,118		991

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - MICRO CAP GROWTH FUND July 31, 2020

Investments	Shares		Fair Value (000)
Health Care Equipment & Supplies 13.22%
Axonics Modulation Technologies, Inc.*(b)		48,519	$	2,055
CryoPort, Inc.*(b)		35,196		1,166
GenMark Diagnostics, Inc.*		85,500		1,527
Inari Medical, Inc.*		18,172		1,022
iRhythm Technologies, Inc.*		7,028		875
OrthoPediatrics Corp.*		35,089		1,480
Shockwave Medical, Inc.*		19,883		981
Silk Road Medical, Inc.*		58,524		2,719
Tactile Systems Technology, Inc.*		18,000		738
Total				12,563
Health Care Providers & Services 0.86%
Ontrak, Inc.*(b)		21,489		822
Health Care Technology 3.22%
Health Catalyst, Inc.*		24,756		864
Inspire Medical Systems, Inc.*		16,893		1,678
Simulations Plus, Inc.		7,380		520
Total				3,062
Hotels, Restaurants & Leisure 1.56%
GAN Ltd. (United Kingdom)*(a)		16,733		324
Papa John’s International, Inc.		12,243		1,159
Total				1,483
Household Durables 3.66%
LGI Homes, Inc.*		20,323		2,319
Sonos, Inc.*		72,743		1,164
Total				3,483
Information Technology Services 3.09%
Endava plc ADR*		13,176		680
I3 Verticals, Inc. Class A*		14,626		354
Limelight Networks, Inc.*		303,948		1,906
Total				2,940
Insurance 2.66%
Goosehead Insurance, Inc. Class A*		12,941		1,337

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - MICRO CAP GROWTH FUND July 31, 2020

Investments	Shares		Fair Value (000)
Insurance (continued)
Trupanion, Inc.*(b)		23,501	$	1,189
Total				2,526
Interactive Media & Services 2.02%
EverQuote, Inc. Class A*		35,179		1,916
Internet & Direct Marketing Retail 7.07%
1-800-Flowers.com, Inc. Class A*		29,816		842
Fiverr International Ltd. (Israel)*(a)		37,834		3,535
Magnite, Inc.*		85,368		513
RealReal, Inc. (The)*		72,160		984
Stamps.com, Inc.*		3,250		846
Total				6,720
Internet Software & Services 0.74%
Cardlytics, Inc.*		10,526		699
Leisure Products 2.58%
Malibu Boats, Inc. Class A*		41,732		2,453
Life Sciences Tools & Services 2.48%
Berkeley Lights, Inc.*		3,870		232
NanoString Technologies, Inc.*		30,759		1,111
Quanterix Corp.*		31,535		1,019
Total				2,362
Machinery 6.32%
Chart Industries, Inc.*		27,210		1,865
Evoqua Water Technologies Corp.*		61,288		1,178
Federal Signal Corp.		27,268		843
Shyft Group, Inc. (The)		57,036		1,077
SPX Corp.*		24,906		1,046
Total				6,009

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - MICRO CAP GROWTH FUND July 31, 2020

Investments	Shares		Fair Value (000)
Personal Products 1.41%
elf Beauty, Inc.*		75,242	$	1,344
Pharmaceuticals 0.70%
Pliant Therapeutics, Inc.*		28,432		662
Real Estate Management & Development 0.79%
Redfin Corp.*		17,993		748
Semiconductors & Semiconductor Equipment 4.61%
CEVA, Inc.*		37,850		1,521
Ichor Holdings Ltd.*		47,584		1,562
Impinj, Inc.*		15,873		375
Rambus, Inc.*		62,811		927
Total				4,385
Software 9.62%
8x8, Inc.*		37,592		598
Agilysys, Inc.*		38,967		817
CERENCE, Inc.*		87,753		3,480
Rapid7, Inc.*		10,233		610
Sprout Social, Inc. Class A*		57,046		1,648
SVMK, Inc.*		28,948		694
Telenav, Inc.*		81,283		421
Upland Software, Inc.*		25,549		879
Total				9,147
Specialty Retail 2.55%
National Vision Holdings, Inc.*		21,823		698
Sleep Number Corp.*		37,077		1,724
Total				2,422
Total Common Stocks (cost $65,126,267)				95,042

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - MICRO CAP GROWTH FUND July 31, 2020

Investments	Principal Amount (000)		Fair Value (000)
SHORT-TERM INVESTMENTS 8.24%
Repurchase Agreement 2.60%
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $2,329,800 of U.S. Treasury Note at 2.25% due 4/30/2024; value: $2,523,828; proceeds: $2,474,256 (cost $2,474,256)	$	2,474	$	2,474

	Shares
Money Market Fund 5.07%
Fidelity Government Portfolio(c) (cost $4,822,002)		4,822,002		4,822
Time Deposit 0.57%
CitiBank N.A.(c) (cost $535,778)		535,778		536
Total Short-Term Investments (cost $7,832,036)				7,832
Total Investments in Securities 108.23% (cost $72,958,303)				102,874
Liabilities in Excess of Other Assets (8.23)%				(7,826	)
Net Assets 100.00%			$	95,048

ADR	American Depositary Receipt.
*	Non-income producing security.
(a)	Foreign security traded in U.S. dollars.
(b)	All or a portion of these securities are 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 July 31, 2020 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	$	95,042	$	—	$	—	$	95,042
Short-Term Investments
Repurchase Agreement		—		2,474		—		2,474
Money Market Fund		4,822		—		—		4,822
Time Deposit		—		536		—		536
Total	$	99,864	$	3,010	$	—	$	102,874

(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.

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SECURITIES TRUST - VALUE OPPORTUNITIES FUND July 31, 2020

Investments	Shares		Fair Value (000)
COMMON STOCKS 99.76%
Aerospace & Defense 0.25%
Teledyne Technologies, Inc.*		11,770	$	3,610
Auto Components 4.65%
Dorman Products, Inc.*		246,370		20,141
LCI Industries		186,345		23,442
Lear Corp.		209,841		23,162
Total				66,745
Banks 5.15%
Bank of Hawaii Corp.		301,327		17,064
East West Bancorp, Inc.		399,535		13,848
First Republic Bank		186,448		20,971
SVB Financial Group*		98,184		22,020
Total				73,903
Beverages 0.93%
Primo Water Corp.		943,968		13,414
Building Products 6.52%
A.O. Smith Corp.		534,242		25,718
Allegion plc (Ireland)(a)		218,287		21,711
Masonite International Corp.*		176,124		14,856
Simpson Manufacturing Co., Inc.		324,996		31,382
Total				93,667
Capital Markets 1.91%
Ares Capital Corp.		1,332,893		18,794
Hamilton Lane, Inc. Class A		119,146		8,607
Total				27,401
Chemicals 4.37%
Avient Corp.		654,622		15,645
Axalta Coating Systems Ltd.*		1,049,358		23,296
Valvoline, Inc.		1,162,112		23,847
Total				62,788

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - VALUE OPPORTUNITIES FUND July 31, 2020

Investments	Shares		Fair Value (000)
Consumer Finance 1.48%
Discover Financial Services		430,909	$	21,300
Containers & Packaging 1.54%
Avery Dennison Corp.		195,403		22,147
Electric: Utilities 3.10%
IDACORP, Inc.		242,382		22,602
Portland General Electric Co.		497,067		21,936
Total				44,538
Electrical Equipment 3.10%
Acuity Brands, Inc.		262,742		26,038
Generac Holdings, Inc.*		116,798		18,405
Total				44,443
Electronic Equipment, Instruments & Components 3.38%
FLIR Systems, Inc.		596,160		24,836
Littelfuse, Inc.		133,040		23,634
Total				48,470
Equity Real Estate Investment Trusts 5.03%
Alexandria Real Estate Equities, Inc.		153,518		27,257
First Industrial Realty Trust, Inc.		592,936		26,042
UDR, Inc.		520,536		18,843
Total				72,142
Health Care Equipment & Supplies 7.20%
Cooper Cos., Inc. (The)		56,512		15,989
Hill-Rom Holdings, Inc.		200,698		19,512
NuVasive, Inc.*		388,185		22,181
STERIS plc		162,984		26,017
Varian Medical Systems, Inc.*		138,115		19,712
Total				103,411
Health Care Providers & Services 2.39%
Encompass Health Corp.		201,927		13,747
Molina Healthcare, Inc.*		111,551		20,604
Total				34,351

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - VALUE OPPORTUNITIES FUND July 31, 2020

Investments	Shares		Fair Value (000)
Hotels, Restaurants & Leisure 1.52%
Dunkin’ Brands Group, Inc.		316,833	$	21,776
Industrial Conglomerates 1.22%
Carlisle Cos., Inc.		147,588		17,575
Information Technology Services 7.36%
Amdocs Ltd.		176,426		10,956
Booz Allen Hamilton Holding Corp.		294,461		24,075
EPAM Systems, Inc.*		44,887		13,021
Euronet Worldwide, Inc.*		208,711		20,066
Jack Henry & Associates, Inc.		121,628		21,686
MAXIMUS, Inc.		213,840		15,869
Total				105,673
Insurance 5.62%
Arch Capital Group Ltd.*		275,785		8,480
Brown & Brown, Inc.		239,721		10,900
Globe Life, Inc.		163,864		13,044
Hanover Insurance Group, Inc. (The)		208,338		21,226
RenaissanceRe Holdings Ltd.		149,548		26,975
Total				80,625
Internet Software & Services 0.91%
TechTarget, Inc.*		360,871		13,096
Leisure Products 1.69%
Malibu Boats, Inc. Class A*		411,508		24,188
Life Sciences Tools & Services 6.82%
Bio-Techne Corp.		80,237		22,078
Charles River Laboratories International, Inc.*		164,594		32,753
ICON plc (Ireland)*(a)		91,117		16,898
PerkinElmer, Inc.		220,729		26,247
Total				97,976

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - VALUE OPPORTUNITIES FUND July 31, 2020

Investments	Shares		Fair Value (000)
Machinery 1.91%
Allison Transmission Holdings, Inc.		283,126	$	10,578
Crane Co.		297,795		16,846
Total				27,424
Media 0.50%
Interpublic Group of Cos., Inc. (The)		399,893		7,218
Metals & Mining 1.49%
Reliance Steel & Aluminum Co.		217,429		21,364
Multi-Utilities 1.51%
NorthWestern Corp.		384,032		21,606
Oil, Gas & Consumable Fuels 1.52%
Cabot Oil & Gas Corp.		395,300		7,392
Par Pacific Holdings, Inc.*		832,169		6,166
Parsley Energy, Inc. Class A		746,873		8,201
Total				21,759
Real Estate Management & Development 0.85%
Marcus & Millichap, Inc.*		447,800		12,198
Road & Rail 3.00%
Landstar System, Inc.		246,700		30,043
Saia, Inc.*		109,251		13,050
Total				43,093
Semiconductors & Semiconductor Equipment 5.87%
Entegris, Inc.		466,259		33,529
Monolithic Power Systems, Inc.		99,267		26,307
Teradyne, Inc.		275,333		24,493
Total				84,329
Software 2.81%
Fair Isaac Corp.*		56,968		25,020
Synopsys, Inc.*		76,654		15,271
Total				40,291

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SECURITIES TRUST - VALUE OPPORTUNITIES FUND July 31, 2020

Investments	Shares		Fair Value (000)
Specialty Retail 2.72%
Burlington Stores, Inc.*		133,443	$	25,087
Williams-Sonoma, Inc.		160,266		13,963
Total				39,050
Textiles, Apparel & Luxury Goods 1.44%
Columbia Sportswear Co.		272,248		20,647
Total Common Stocks (cost $1,231,825,354)				1,432,218
	Principal Amount (000)
SHORT-TERM INVESTMENT 0.15%
Repurchase Agreement
Repurchase Agreement dated 7/31/2020, 0.00% due 8/3/2020 with Fixed Income Clearing Corp. collateralized by $2,011,600 of U.S. Treasury Inflation Index Note at 0.00% due 07/15/2030; value: $2,243,532; proceeds: $2,199,459 (cost $2,199,459)	$	2,199		2,199
Total Investments in Securities 99.91% (cost $1,234,024,813)				1,434,417
Cash and Other Assets in Excess of Liabilities 0.09%				1,277
Net Assets 100.00%			$	1,435,694

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

See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SECURITIES TRUST - VALUE OPPORTUNITIES FUND July 31, 2020

The following is a summary of the inputs used as of July 31, 2020 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	$	1,432,218	$	—	$	—	$	1,432,218
Short-Term Investment
Repurchase Agreement		—		2,199		—		2,199
Total	$	1,432,218	$	2,199	$	—	$	1,434,417

(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.

See Notes to Schedule of Investments.

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 Value Fund (“International Value Fund”), Lord Abbett International Opportunities Fund (“International Opportunities Fund”), Lord Abbett Micro-Cap Growth Fund (“Micro Cap Growth Fund”) and Lord Abbett Value Opportunities Fund (“Value Opportunities Fund”).

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. Forward foreign currency exchange contracts are valued using daily forward exchange rates. Swaps are valued daily using independent pricing services or quotes from broker/dealers to the extent available. Investments in the 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 July 31, 2020 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.

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 Funds have established a securities lending agreement with Citibank, N.A. 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 Funds’ 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 Funds may experience a delay in the recovery of their securities or incur a loss should the borrower of the securities breach its agreement with the Funds 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 funds are 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 Funds’ agent; the Funds will bear the risk of loss with respect to the investment of the cash collateral. The advantage of such loans is that the Funds 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 July 31, 2020, the collateral received and market value of securities loaned for the Funds was as follows:

Funds	Market Value of Securities Loaned		Collateral Received
Growth Leader Fund	$	19,204,395	$	20,365,500
International Equity Fund		5,346,287		5,556,067
International Opportunities Fund		9,462,265		10,801,962
International Value Fund		4,632.673		4,826,856
Micro-Cap Growth Fund		5,083,495		5,357,780

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 July 31, 2020:

Alpha Strategy Fund
Affiliated Issuer	Balance of Shares Held at 10/31/2019	Gross Additions	Gross Sales		Balance of Shares Held at 07/31/2020		Fair Value at 07/31/2020		Net Realized Gain 11/1/2019 to 07/31/2020			Dividend Income 11/1/2019 to 07/31/2020		Change in Appreciation (Depreciation) 11/1/2019 to 07/31/2020
Lord Abbett Developing Growth Fund, Inc. - Class I	6,293,405	1,219,795	(3,061,488	)	4,451,712	$	135,777,210	$	32,226,298	(a)	$	—	$	6,225,064
Lord Abbett Securities Trust - Focused Small Cap Value Fund - Class I	3,528,280	778,098	(867,994	)	3,438,384		67,323,567		5,258,490	(b)		—		(17,609,628	)
Lord Abbett Securities Trust - International Opportunities Fund - Class I	11,395,952	305,386	(3,392,393	)	8,308,945		132,860,027		5,728,116			2,763,597		(14,314,188	)
Lord Abbett Securities Trust - Micro-Cap Growth Fund - Class I	5,576,731	935,326	(2,756,987	)	3,755,070		68,417,384		17,464,394	(c)		—		7,587,626
Lord Abbett Research Fund, Inc. - Small-Cap Value Fund - Class I	8,905,270	1,831,642	(1,821,334	)	8,915,578		134,001,143		(5,365,208)	(d)		880,426		(25,672,884	)
Lord Abbett Securities Trust - Value Opportunities Fund - Class I	9,590,809	1,363,372	(3,247,000	)	7,707,181		134,721,527		7,756,232	(e)		1,099,546		(11,047,373	)
Total						$	673,100,858	$	63,068,322		$	4,743,569	$	(54,831,383	)

(a)	Includes $28,247,947 of distributed capital gains.
(b)	Includes $13,929,615 of distributed capital gains.
(c)	Includes $13,216,296 of distributed capital gains.
(d)	Includes $25,232,472 of distributed capital gains.
(e)	Includes $18,946,901 of distributed capital gains.

Investments in Underlying Funds (unaudited)

Alpha Strategy Fund invests in Underlying Funds managed by Lord Abbett. As of July 31, 2020, 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	20.17	%
Lord Abbett Research Fund, Inc. - Small-Cap Value Fund -Class I	19.91	%
Lord Abbett Securities Trust-Focused Small-Cap Value Fund-Class I	10.00	%
Lord Abbett Securities Trust-International Opportunities Fund-Class I	19.74	%
Lord Abbett Securities Trust-Micro-Cap Growth Fund-Class I	10.16	%
Lord Abbett Securities Trust-Value Opportunities Fund-Class I	20.02	%

The Ten Largest Holdings and the Holdings by Sector, as of July 31, 2020, 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
Inphi Corp.		2.71	%
Five9, Inc.		2.21	%
Redfin Corp.		2.20	%
LGI Homes, Inc.		1.98	%
Fiverr International Ltd. (Israel)		1.90	%
SVMK, Inc.		1.88	%
Wingstop, Inc.		1.85	%
Generac Holdings, Inc.		1.74	%
Stamps.com, Inc.		1.71	%
Inspire Medical Systems, Inc.		1.66	%

Holdings by Sector*	% of Investments
Consumer Discretionary		19.91	%
Consumer Staples		3.05	%
Financial Services		2.41	%
Health Care		28.12	%
Industrials		11.23	%
Information Technology		27.85	%
Real Estate		2.15	%
Money Market Fund (a)		2.01	%
Technology		0.58	%
Repurchase Agreement		2.69	%
Total		100.00	%

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

Focused Small Cap Value Fund

Ten Largest Holdings	% of Investments
Masonite International Corp.		4.41	%
Hillenbrand, Inc.		3.98	%
Malibu Boats, Inc. Class A		3.47	%
Bancorp, Inc. (The)		3.15	%
Spectrum Brands Holdings, Inc.		2.99	%
Brightsphere Investment Group, Inc.		2.98	%
Thor Industries, Inc.		2.92	%
Beacon Roofing Supply, Inc.		2.84	%
Columbus McKinnon Corp.		2.81	%
Ichor Holdings Ltd.		2.71	%

Holdings by Sector*	% of Investments
Communication Services		2.65	%
Consumer Discretionary		10.06	%
Consumer Staples		3.00	%
Energy		4.29	%
Financial Services		31.16	%
Health Care		2.67	%
Industrials		22.56	%
Information Technology		6.88	%
Materials		10.13	%
Real Estate		5.59	%
Repurchase Agreement		1.01	%
Total		100.00	%

* A sector may comprise several industries.

International Opportunities Fund

Ten Largest Holdings	% of Investments
Azbil Corp.		2.70	%
VanEck Vectors Junior Gold Miners		2.53	%
IMA Industria Macchine Automatiche SpA		2.38	%
SHO-BOND Holdings Co. Ltd.		2.00	%
Anima Holding SpA		1.84	%
Capcom Co., Ltd.		1.80	%
Lancashire Holdings Ltd.		1.79	%
Rheinmetall AG		1.71	%
Gerresheimer AG		1.64	%
REN - Redes Energeticas Nacionais SGPS SA		1.64	%

Holdings by Sector*	% of Investments
Communication Services		4.68	%
Consumer Discretionary		13.32	%
Consumer Staples		4.66	%
Financial Services		11.86	%
Health Care		8.01	%
Industrials		21.47	%
Information Technology		15.42	%
Materials		8.53	%
Real Estate		8.35	%
Utilities		3.24	%
Repurchase Agreement		0.46	%
Total		100.00	%

* A sector may comprise several industries.

Micro-Cap Growth Fund

Ten Largest Holdings	% of Investments
Fiverr International Ltd.		3.63	%
CERENCE, Inc.		3.57	%
Calix, Inc.		2.99	%
Silk Road Medical, Inc.		2.79	%
Malibu Boats, Inc. Class A		2.52	%
LGI Homes, Inc.		2.38	%
Axonics Modulation Technologies, Inc.		2.11	%
EverQuote, Inc. Class A		1.96	%
Limelight Networks, Inc.		1.95	%
Chart Industries, Inc.		1.91	%
Total

Holdings by Sector*	% of Investments
Communication Services		2.64	%
Consumer Discretionary		16.10	%
Consumer Staples		2.27	%
Financial Services		4.35	%
Health Care		35.58	%
Industrials		8.91	%
Information Technology		21.81	%
Real Estate		0.73	%
Money Market Fund(a)		5.21	%
Repurchase Agreement		2.40	%
Total		100.00	%

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

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

Ten Largest Holdings	% of Investments
Brightsphere Investment Group, Inc.		2.35	%
Bancorp, Inc. (The)		2.35	%
Masonite International Corp.		2.13	%
Malibu Boats, Inc. Class A		2.09	%
STAG Industrial, Inc.		2.09	%
Hillenbrand, Inc.		2.04	%
Ichor Holdings Ltd.		2.04	%
Spectrum Brands Holdings, Inc.		1.97	%
First Industrial Realty Trust		1.94	%
AMN Healthcare Services		1.87	%

Holdings by Sector*	% of Investments
Communication Services		1.06	%
Consumer Discretionary		9.40	%
Consumer Staples		3.29	%
Energy		3.88	%
Financial Services		27.04	%
Health Care		5.75	%
Industrials		17.01	%
Information Technology		9.82	%
Materials		7.11	%
Real Estate		10.09	%
Utilities		5.55	%
Total		100.00	%

* A sector may comprise several industries.

Value Opportunities Fund

Ten Largest Holdings	% of Investments
Entegris, Inc.		2.34	%
Charles River Laboratories International, Inc.		2.28	%
Simpson Manufacturing Co., Inc.		2.19	%
Landstar System, Inc.		2.09	%
Alexandria Real Estate Equities, Inc.		1.90	%
RenaissanceRe Holdings Ltd.		1.88	%
Monolithic Power Systems, Inc.		1.83	%
PerkinElmer, Inc.		1.83	%
First Industrial Realty Trust, Inc.		1.82	%
Acuity Brands, Inc.		1.82	%

Holdings by Sector*	% of Investments
Communication Services		0.50	%
Consumer Discretionary		12.02	%
Consumer Staples		0.94	%
Energy		1.52	%
Financial Services		14.17	%
Health Care		16.43	%
Industrials		16.02	%
Information Technology		20.35	%
Materials		7.41	%
Real Estate		5.88	%
Utilities		4.61	%
Repurchase Agreement		0.15	%
Total		100.00	%

* A sector may comprise several industries.