Lord Abbett Series Fund NPORT-P Growth Opportunities Portfolio (Mar 2024 report)

Lord Abbett
Quarterly Portfolio Holdings Report

Lord Abbett

Bond Debenture Portfolio

Developing Growth Portfolio

Dividend Growth Portfolio

Fundamental Equity Portfolio

Growth and Income Portfolio

Growth Opportunities Portfolio

Mid Cap Stock Portfolio

Short Duration Income Portfolio

Total Return Portfolio

For the period ended March 31, 2024

Schedule of Investments (unaudited)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
LONG-TERM INVESTMENTS 109.10%
ASSET-BACKED SECURITIES 5.70%
Automobiles 1.39%
Carvana Auto Receivables Trust Series NP1 2020-N1A Class E†	5.20%		7/15/2027	$	1,250,000	$	1,224,757
Credit Acceptance Auto Loan Trust Series 2023-3A Class A†	6.39%		8/15/2033		945,000		958,935
Exeter Automobile Receivables Trust Series 2023-5A Class B	6.58%		4/17/2028		1,815,000		1,840,596
Flagship Credit Auto Trust Series 2023-1 Class B†	5.05%		1/18/2028		425,000		420,874
Flagship Credit Auto Trust Series 2023-1 Class C†	5.43%		5/15/2029		470,000		466,239
Ford Credit Auto Lease Trust Series 2023-A Class B	5.29%		6/15/2026		1,150,000		1,145,507
Ford Credit Auto Lease Trust Series 2023-A Class C	5.54%		12/15/2026		1,385,000		1,377,767
Santander Drive Auto Receivables Trust Series 2023-1 Class C	5.09%		5/15/2030		1,740,000		1,721,521
Santander Drive Auto Receivables Trust Series 2023-3 Class C	5.77%		11/15/2030		1,900,000		1,916,127
Westlake Automobile Receivables Trust Series 2021-1A Class F†	3.91%		9/15/2027		3,118,000		3,045,185
Westlake Automobile Receivables Trust Series 2024-1 Class D†	6.02%		10/15/2029		1,310,000		1,314,868
Total							15,432,376
Credit Card 0.12%
Genesis Sales Finance Master Trust Series 2021-AA Class A†	1.20%		12/21/2026		1,298,000		1,254,110
Home Equity 0.13%
Towd Point Mortgage Trust Series 2024-CES1 Class A1A†	5.848%	#(a)	1/25/2064		1,420,421		1,421,984
Other 4.03%
Affirm Asset Securitization Trust Series 2023-A Class 1A†	6.61%		1/18/2028		3,245,000		3,265,560
Affirm Asset Securitization Trust Series 2023-B Class A†	6.82%		9/15/2028		1,725,000		1,751,751
Affirm Asset Securitization Trust Series 2024-A Class A†	5.61%		2/15/2029		835,000		833,632

See Notes to Schedule of Investments. 1

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity  Date	Principal Amount‡		Fair Value
Other (continued)
AGL CLO 28 Ltd. Series 2023-28A Class D†	10.153% (3 mo. USD Term SOFR + 4.85%	)#	1/21/2037	$	730,000	$	734,936
Anchorage Capital CLO 28 Ltd. Series 2024-28A Class C†	7.985% (3 mo. USD Term SOFR + 2.70%	)#	4/20/2037		750,000		749,844
Arbor Realty Commercial Real Estate Notes Ltd. Series 2021-FL2 Class A†	6.54% (1 mo. USD Term SOFR + 1.21%	)#	5/15/2036		527,859		526,622
Arbor Realty Commercial Real Estate Notes Ltd. Series 2022-FL2 Class A†	7.175% (1 mo. USD Term SOFR + 1.85%	)#	5/15/2037		1,410,000		1,410,007
Avant Loans Funding Trust Series 2021-REV1 Class A†	1.21%		7/15/2030		41,667		41,613
Ballyrock CLO 20 Ltd. Series 2022-20A Class BR†	7.914% (3 mo. USD Term SOFR + 2.60%	)#	7/15/2034		450,000		450,672
Ballyrock CLO 25 Ltd. Series 2023-25A Class C†	10.024% (3 mo. USD Term SOFR + 4.70%	)#	1/25/2036		520,000		526,394
Ballyrock CLO Ltd. Series 2019-1A Class A1R†	6.606% (3 mo. USD Term SOFR + 1.29%	)#	7/15/2032		450,000		450,777
Carlyle U.S. CLO Ltd. Series 2023-4A Class C†	8.174% (3 mo. USD Term SOFR + 2.80%	)#	10/25/2036		490,000		492,679
Carlyle U.S. CLO Ltd. Series 2023-5A Class D†	10.423% (3 mo. USD Term SOFR + 5.10%	)#	1/27/2036		520,000		525,299
Carlyle U.S. CLO Ltd. Series 2024-1A Class C†	7.744% (3 mo. USD Term SOFR + 2.45%	)#	4/15/2037		760,000		759,757
CIFC Funding Ltd. Series 2023-3A Class A†	6.916% (3 mo. USD Term SOFR + 1.60%	)#	1/20/2037		2,460,000		2,466,297
CIFC Funding Ltd. Series 2023-3A Class D†	9.566% (3 mo. USD Term SOFR + 4.25%	)#	1/20/2037		760,000		765,602
CIFC Funding Ltd. Series 2024-2A Class C†(b)	6.29% (3 mo. USD Term SOFR + 2.40%	)#	4/22/2037		740,000		741,983
Dryden 113 CLO Ltd. Series 2022-113A Class CR†	8.116% (3 mo. USD Term SOFR + 2.70%	)#	10/20/2035		540,000		540,748

2 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
Other (continued)
Dryden 115 CLO Ltd. Series 2024-115A Class D†	9.101% (3 mo. USD Term SOFR + 3.80%	)#	4/18/2037	$	600,000	$	600,000
Elmwood CLO 27 Ltd. Series 2024-3A Class B†(b)	11.00% (3 mo. USD Term SOFR + 1.95%	)#	4/18/2037		1,200,000		1,201,715
Elmwood CLO VII Ltd. Series 2020-4A Class CR†	8.017% (3 mo. USD Term SOFR + 2.70%	)#	1/17/2034		470,000		473,213
Flatiron CLO 18 Ltd. Series 2018-1A Class A†	6.528% (3 mo. USD Term SOFR + 1.21%	)#	4/17/2031		1,150,303		1,149,625
Generate CLO 14 Ltd. Series 2024-14A Class B†	7.425% (3 mo. USD Term SOFR + 2.10%	)#	4/22/2037		1,300,000		1,299,925
GoldenTree Loan Management U.S. CLO Ltd. Series 2022-16A Class DR†	10.107% (3 mo. USD Term SOFR + 4.75%	)#	1/20/2034		720,000		722,399
Gracie Point International Funding Series 2023-1A Class A†	7.308% (90 day USD SOFR Average + 1.95%	)#	9/1/2026		1,941,289		1,956,559
Halcyon Loan Advisors Funding Ltd. Series 2017-2A Class A2†	7.278% (3 mo. USD Term SOFR + 1.96%	)#	1/17/2030		679,855		682,283
Hardee’s Funding LLC Series 2018-1A Class A2II†	4.959%		6/20/2048		560,583		556,378	(c)
Hardee’s Funding LLC Series 2024-1A Class A2†(b)	7.253%		3/20/2054		345,000		349,063
Invesco U.S. CLO Ltd. Series 2023-4A Class D†	10.61% (3 mo. USD Term SOFR + 5.25%	)#	1/18/2037		680,000		684,396
Madison Park Funding Ltd. Series 2024-58A Class B†(b)	5.85% (3 mo. USD Term SOFR + 1.95%	)#	4/25/2037		600,000		600,750	(c)
Madison Park Funding XIII Ltd. Series 2014-13A Class AR2†	6.521% (3 mo. USD Term SOFR + 1.21%	)#	4/19/2030		480,084		480,182
Madison Park Funding XXIX Ltd. Series 2018-29A Class BR†(b)	7.109% (3 mo. USD Term SOFR + 1.80%	)#	10/18/2030		1,660,000		1,662,372
Magnetite XXXIX Ltd. Series 2023-39A Class C†	7.935% (3 mo. USD Term SOFR + 2.55%	)#	10/25/2033		930,000		935,621

See Notes to Schedule of Investments. 3

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
Other (continued)
MF1 LLC Series 2022-FL9 Class A†	7.476% (1 mo. USD Term SOFR + 2.15%	)#	6/19/2037	$	2,620,000	$	2,623,137
MF1 LLC Series 2024-FL14 Class A†	7.063% (1 mo. USD Term SOFR + 1.74%	)#	3/19/2039		2,490,000		2,495,453
Oaktree CLO Ltd. Series 2022-2a Class DR†	9.814% (3 mo. USD Term SOFR + 4.50%	)#	7/15/2033		370,000		371,969
OCP CLO Ltd. Series 2024-31A Class D†	9.243% (3 mo. USD Term SOFR + 3.95%	)#	4/20/2037		910,000		917,436
OHA Credit Funding 16 Ltd. Series 2023-16A Class C†	8.006% (3 mo. USD Term SOFR + 2.65%	)#	10/20/2036		1,300,000		1,308,303
Palmer Square CLO Ltd. Series 2023-4A Class C†	8.013% (3 mo. USD Term SOFR + 2.60%	)#	10/20/2033		810,000		813,926
SEB Funding LLC Series 2021-1A Class A2†	4.969%		1/30/2052		1,457,348		1,376,773
Sixth Street CLO XXIII Ltd. Series 2023-23A Class C†	8.072% (3 mo. USD Term SOFR + 2.70%	)#	10/23/2036		490,000		492,686
Sixth Street CLO XXIV Ltd. Series 2024-24A Class B†(b)	8.579% (3 mo. USD Term SOFR + 2.00%	)#	4/23/2037		960,000		960,000
Sunrun Demeter Issuer LLC Series 2021-2A Class A†	2.27%		1/30/2057		1,278,393		1,045,682
Texas Debt Capital CLO Ltd. Series 2024-1A Class C†	7.679% (3 mo. USD Term SOFR + 2.35%	)#	4/22/2037		460,000		459,964
TICP CLO VII Ltd. Series 2017-7A Class BR2†	6.963% (3 mo. USD Term SOFR + 1.90%	)#	4/15/2033		1,000,000		1,000,011
Valley Stream Park CLO Ltd. Series 2022-1A Class CR†	7.968% (3 mo. USD Term SOFR + 2.65%	)#	10/20/2034		450,000		450,646
Total							44,704,640
Rec Vehicle Loan 0.03%
Octane Receivables Trust Series 2022-2A Class A†	5.11%		2/22/2028		358,440		356,940
Total Asset-Backed Securities (cost $63,362,672)							63,170,050

4 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
COMMON STOCKS 7.64%
Aerospace & Defense 0.10%
Huntington Ingalls Industries, Inc.		3,801	$	1,107,877
Automobile Components 0.07%
Chassix Holdings, Inc.		173,592		737,767
Banks 0.21%
First Citizens BancShares, Inc. Class A		1,447		2,365,845
Beverages 0.12%
Celsius Holdings, Inc.*		16,178		1,341,480
Biotechnology 0.10%
Natera, Inc.*		12,219		1,117,550
Broadline Retail 0.16%
Amazon.com, Inc.*		9,714		1,752,211
Building Products 0.10%
Trane Technologies PLC (Ireland)(d)		3,647		1,094,829
Capital Markets 0.51%
ARES Management Corp. Class A		8,347		1,109,984
Coinbase Global, Inc. Class A*		8,649		2,293,023
Tradeweb Markets, Inc. Class A		21,710		2,261,531
Total				5,664,538
Chemicals 0.10%
Sherwin-Williams Co.		3,338		1,159,388
Commercial Services & Supplies 0.11%
Republic Services, Inc.		6,239		1,194,394
Consumer Finance 0.10%
American Express Co.		4,853		1,104,980
Consumer Staples Distribution & Retail 0.20%
Maplebear, Inc.*		29,016		1,082,007
U.S. Foods Holding Corp.*		21,046		1,135,852
Total				2,217,859
Diversified Consumer Services 0.10%
Bright Horizons Family Solutions, Inc.*		10,157		1,151,398

See Notes to Schedule of Investments. 5

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Electrical Equipment 0.20%
Eaton Corp. PLC		3,515	$	1,099,070
Hubbell, Inc.		2,673		1,109,429
Total				2,208,499
Electric-Generation 0.00%
Frontera Generation Holdings LLC		9,472		4,736
Energy Equipment & Services 0.11%
Weatherford International PLC*		10,506		1,212,602
Entertainment 0.36%
Netflix, Inc.*		1,961		1,190,974
Nintendo Co. Ltd.(e)		19,400		1,058,553
Spotify Technology SA (Sweden)*(d)		6,415		1,692,919
Total				3,942,446
Financial Services 0.21%
Fiserv, Inc.*		7,540		1,205,043
PayPal Holdings, Inc.*		17,084		1,144,457
Total				2,349,500
Food Products 0.10%
McCormick & Co., Inc.		14,361		1,103,068
Ground Transportation 0.40%
Canadian Pacific Kansas City Ltd.(e)		12,881		1,135,712
Old Dominion Freight Line, Inc.		7,574		1,661,054
Uber Technologies, Inc.*		20,866		1,606,473
Total				4,403,239
Health Care Equipment & Supplies 0.42%
GE HealthCare Technologies, Inc.		12,856		1,168,739
Glaukos Corp.*		12,658		1,193,523
Intuitive Surgical, Inc.*		5,699		2,274,414
Total				4,636,676
Health Care Providers & Services 0.11%
Universal Health Services, Inc. Class B		6,795		1,239,816
Hotels, Restaurants & Leisure 0.49%
Aristocrat Leisure Ltd.(e)		37,400		1,047,234
Domino’s Pizza, Inc.		2,870		1,426,046
DraftKings, Inc. Class A*		39,666		1,801,233
Dutch Bros, Inc. Class A*		34,657		1,143,681
Total				5,418,194

6 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Insurance 0.32%
Progressive Corp.		11,597	$	2,398,492
Willis Towers Watson PLC (United Kingdom)(d)		4,060		1,116,500
Total				3,514,992
Interactive Media & Services 0.15%
Meta Platforms, Inc. Class A		3,503		1,700,987
Life Sciences Tools & Services 0.10%
Danaher Corp.		4,401		1,099,018
Machinery 0.20%
PACCAR, Inc.		8,908		1,103,612
Xylem, Inc.		8,928		1,153,855
Total				2,257,467
Marine Transportation 0.10%
Kirby Corp.*		11,880		1,132,402
Metals & Mining 0.23%
Southern Copper Corp.		12,625		1,344,815
Teck Resources Ltd. Class B (Canada)(d)		26,141		1,196,735
Total				2,541,550
Miscellaneous Financials 0.04%
Utex Industries		8,205		441,019	(f)
Oil, Gas & Consumable Fuels 0.25%
Frontline PLC (Norway)(d)(g)		45,491		1,063,580
Imperial Oil Ltd.(e)		24,604		1,697,059
Total				2,760,639
Personal Care Products 0.06%
Gibson Brands Private Equity		9,315		675,337
Professional Services 0.20%
Booz Allen Hamilton Holding Corp.		7,525		1,117,011
Leidos Holdings, Inc.		8,491		1,113,085
Total				2,230,096
Real Estate Management & Development 0.11%
CoStar Group, Inc.*		12,367		1,194,652

See Notes to Schedule of Investments. 7

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments			Shares		Fair Value
Semiconductors & Semiconductor Equipment 0.35%
Advanced Micro Devices, Inc.*				6,148	$	1,109,652
Broadcom, Inc.				855		1,133,226
KLA Corp.				2,404		1,679,362
Total						3,922,240
Software 0.17%
AppLovin Corp. Class A*				26,523		1,835,922
Specialty Retail 0.28%
Claire’s Holdings LLC				1,067		69,370
Floor & Decor Holdings, Inc. Class A*				9,441		1,223,742
O’Reilly Automotive, Inc.*				1,587		1,791,533
Total						3,084,645
Textiles, Apparel & Luxury Goods 0.47%
Birkenstock Holding PLC (United Kingdom)*(d)(g)				27,306		1,290,208
Deckers Outdoor Corp.*				1,203		1,132,336
Hermes International SCA(e)				654		1,671,480
Lululemon Athletica, Inc. (Canada)*(d)				2,823		1,102,805
Total						5,196,829
Trading Companies & Distributors 0.22%
SiteOne Landscape Supply, Inc.*				6,189		1,080,290
United Rentals, Inc.				1,914		1,380,204
Total						2,460,494
Transportation Infrastructure 0.01%
ACBL Holdings Corp.				3,684		162,096
Total Common Stocks (cost $76,741,404)						84,739,277
	Interest Rate	Maturity Date		Principal Amount‡
CORPORATE BONDS 69.62%
Advertising 0.19%
Clear Channel Outdoor Holdings, Inc.†	7.75%	4/15/2028	$	386,000		338,371
Clear Channel Outdoor Holdings, Inc.†	7.875%	4/1/2030		1,075,000		1,069,389
Clear Channel Outdoor Holdings, Inc.†	9.00%	9/15/2028		632,000		658,870
Total						2,066,630
Aerospace/Defense 1.90%
BAE Systems PLC (United Kingdom)†(d)	5.25%	3/26/2031		472,000		474,358
Boeing Co.	5.15%	5/1/2030		1,000,000		967,996

8 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Aerospace/Defense (continued)
Boeing Co.	5.805%	5/1/2050	$	2,273,000	$	2,152,661
Bombardier, Inc. (Canada)†(d)	6.00%	2/15/2028		1,052,000		1,035,983
Bombardier, Inc. (Canada)†(d)	7.125%	6/15/2026		1,418,000		1,440,054
Bombardier, Inc. (Canada)†(d)	7.50%	2/1/2029		1,724,000		1,777,192
HEICO Corp.	5.35%	8/1/2033		680,000		682,588
RTX Corp.	5.15%	2/27/2033		1,105,000		1,107,682
Spirit AeroSystems, Inc.	4.60%	6/15/2028		758,000		711,304
Spirit AeroSystems, Inc.†	9.375%	11/30/2029		984,000		1,074,564
Spirit AeroSystems, Inc.†	9.75%	11/15/2030		1,237,000		1,385,212
TransDigm, Inc.	4.625%	1/15/2029		2,887,000		2,682,616
TransDigm, Inc.	5.50%	11/15/2027		3,862,000		3,782,993
Triumph Group, Inc.†	9.00%	3/15/2028		1,670,000		1,762,655
Total						21,037,858
Agriculture 0.75%
BAT Capital Corp.	7.75%	10/19/2032		1,051,000		1,187,053
Imperial Brands Finance PLC (United Kingdom)†(d)	6.125%	7/27/2027		1,175,000		1,199,201
JT International Financial Services BV (Netherlands)†(d)	6.875%	10/24/2032		1,273,000		1,420,634
Philip Morris International, Inc.	5.125%	2/13/2031		912,000		906,444
Viterra Finance BV (Netherlands)†(d)	2.00%	4/21/2026		1,082,000		1,005,264
Viterra Finance BV (Netherlands)†(d)	3.20%	4/21/2031		1,518,000		1,317,719
Viterra Finance BV (Netherlands)†(d)	5.25%	4/21/2032		1,306,000		1,289,742
Total						8,326,057
Airlines 2.03%
Air Canada (Canada)†(d)	3.875%	8/15/2026		2,301,000		2,198,492
Alaska Airlines Pass-Through Trust†	4.80%	2/15/2029		1,442,574		1,409,063
American Airlines Pass-Through Trust	3.00%	4/15/2030		586,190		534,795
American Airlines, Inc.†	7.25%	2/15/2028		2,188,000		2,223,717
American Airlines, Inc./AAdvantage Loyalty IP Ltd.†	5.75%	4/20/2029		6,185,487		6,084,975
Azul Secured Finance LLP†	11.93%	8/28/2028		1,237,000		1,268,968
British Airways Pass-Through Trust (United Kingdom)†(d)	3.30%	6/15/2034		633,392		569,842
British Airways Pass-Through Trust Class A (United Kingdom)†(d)	4.25%	5/15/2034		476,239		445,340
Delta Air Lines, Inc./SkyMiles IP Ltd.†	4.75%	10/20/2028		1,446,135		1,414,883
Hawaiian Brand Intellectual Property Ltd./HawaiianMiles Loyalty Ltd.†	5.75%	1/20/2026		2,367,596		2,224,537
JetBlue Pass-Through Trust	2.95%	11/15/2029		826,912		737,524

See Notes to Schedule of Investments. 9

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date		Principal Amount‡		Fair Value
Airlines (continued)
United Airlines Pass-Through Trust	5.80%		7/15/2037		$	1,348,000	$	1,375,832
United Airlines Pass-Through Trust Series 2020-1 Class A	5.875%		4/15/2029			1,396,800		1,393,616
United Airlines, Inc.†	4.625%		4/15/2029			696,000		648,056
Total								22,529,640
Auto Manufacturers 0.40%
Allison Transmission, Inc.†	3.75%		1/30/2031			2,429,000		2,121,625
Aston Martin Capital Holdings Ltd. (Jersey)†(d)	10.00%		3/31/2029			1,097,000		1,118,024
Jaguar Land Rover Automotive PLC (United Kingdom)†(d)	5.875%		1/15/2028			1,189,000		1,171,244
Total								4,410,893
Auto Parts & Equipment 0.44%
Adient Global Holdings Ltd.†	7.00%		4/15/2028			771,000		788,518
Clarios Global LP/Clarios U.S. Finance Co.†	6.75%		5/15/2028			1,057,000		1,072,256
Tenneco, Inc.†	8.00%		11/17/2028			1,221,000		1,115,277
ZF North America Capital, Inc.†	6.875%		4/14/2028			1,064,000		1,104,619
ZF North America Capital, Inc.†	7.125%		4/14/2030			759,000		800,469
Total								4,881,139
Banks 5.47%
ABN AMRO Bank NV (Netherlands)†(d)	3.324% (5 yr. CMT + 1.90%	)#	3/13/2037			1,600,000		1,302,027
Akbank TAS (Turkey)†(d)	9.369% (5 yr. CMT + 5.27%	)#	–	(h)		1,291,000		1,290,613
Alfa Bank AO Via Alfa Bond Issuance PLC (Ireland)(d)	5.50% (5 yr. CMT + 4.55%	)#	10/26/2031			2,645,000		–	(f)(i)
Australia & New Zealand Banking Group Ltd. (Australia)†(d)	6.742%		12/8/2032			2,525,000		2,714,730
Banco de Credito e Inversiones SA (Chile)†(d)	8.75% (5 yr. CMT + 4.94%	)#	–	(h)		277,000		285,829
Bank of Ireland Group PLC (Ireland)†(d)	2.029% (1 yr. CMT + 1.10%	)#	9/30/2027			1,201,000		1,099,142
Bank of Ireland Group PLC (Ireland)†(d)	6.253% (1 yr. CMT + 2.65%	)#	9/16/2026			1,466,000		1,475,650
Bank OZK	2.75% (3 mo. USD Term SOFR + 2.09%	)#	10/1/2031			2,182,000		1,823,536
BankUnited, Inc.	4.875%		11/17/2025			1,178,000		1,149,516
BBVA Bancomer SA†	8.125% (5 yr. CMT + 4.21%	)#	1/8/2039			2,198,000		2,278,658

10 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date		Principal Amount‡		Fair Value
Banks (continued)
BBVA Bancomer SA†	8.45% (5 yr. CMT + 4.66%	)#	6/29/2038		$	1,110,000	$	1,172,839
BNP Paribas SA (France)†(d)	5.894% (SOFR + 1.87%	)#	12/5/2034			1,174,000		1,228,118
CaixaBank SA (Spain)†(d)	6.208% (SOFR + 2.70%	)#	1/18/2029			2,569,000		2,622,849
Citizens Financial Group, Inc.	5.841% (SOFR + 2.01%	)#	1/23/2030			1,088,000		1,086,963
Danske Bank AS (Denmark)†(d)	4.298% (1 yr. CMT + 1.75%	)#	4/1/2028			1,084,000		1,046,418
Danske Bank AS (Denmark)†(d)	6.466% (1 yr. CMT + 2.10%	)#	1/9/2026			1,187,000		1,191,550
Deutsche Bank AG	6.72% (SOFR + 3.18%	)#	1/18/2029			2,168,000		2,243,407
Deutsche Bank AG	7.079% (SOFR + 3.65%	)#	2/10/2034			2,717,000		2,796,420
Fifth Third Bancorp	6.339% (SOFR + 2.34%	)#	7/27/2029			846,000		872,443
First Republic Bank	4.375%		8/1/2046			1,248,000		56,160
First Republic Bank	4.625%		2/13/2047			500,000		23,750
First-Citizens Bank & Trust Co.	6.125%		3/9/2028			2,543,000		2,613,556
Freedom Mortgage Corp.†	12.00%		10/1/2028			275,000		300,040
Home BancShares, Inc.	3.125% (3 mo. USD Term SOFR + 1.82%	)#	1/30/2032			1,058,000		802,730
KeyBank NA	3.90%		4/13/2029			1,946,000		1,748,707
KeyBank NA	5.85%		11/15/2027			859,000		852,340
Lloyds Banking Group PLC (United Kingdom)(d)	5.871% (1 yr. CMT + 1.70%	)#	3/6/2029			1,102,000		1,120,230
Lloyds Banking Group PLC (United Kingdom)(d)	6.912% (SOFR + 1.56%	)#	8/7/2027			1,605,000		1,629,501
Macquarie Bank Ltd. (United Kingdom)(d)	6.125% (5 yr. USD Swap + 3.70%	)#	–	(h)		501,000		481,300
Mitsubishi UFJ Financial Group, Inc. (Japan)(d)	8.20% (5 yr. CMT + 3.29%	)#	–	(h)		677,000		732,178
NatWest Group PLC (United Kingdom)(d)	7.472% (1 yr. CMT + 2.85%	)#	11/10/2026			1,874,000		1,925,760
Norinchukin Bank (Japan)†(d)	5.43%		3/9/2028			885,000		897,221
Standard Chartered PLC (United Kingdom)†(d)	6.097% (1 yr. CMT + 2.10%	)#	1/11/2035			934,000		962,452
Standard Chartered PLC (United Kingdom)†(d)	7.767% (1 yr. CMT + 3.45%	)#	11/16/2028			2,010,000		2,151,645
Sumitomo Mitsui Financial Group, Inc. (Japan)(d)	6.60% (5 yr. CMT + 2.28%	)#	–	(h)		669,000		671,521

See Notes to Schedule of Investments. 11

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date		Principal Amount‡		Fair Value
Banks (continued)
SVB Financial Group(j)	4.25% (5 yr. CMT + 3.07%	)	–	(h)	$	3,922,000	$	77,602
TC Ziraat Bankasi AS (Turkey)†(d)	8.00%		1/16/2029			1,498,000		1,521,255
Truist Financial Corp.	5.711% (SOFR + 1.92%	)#	1/24/2035			569,000		571,722
Turkiye Garanti Bankasi AS (Turkey)†(d)	8.375% (5 yr. CMT + 4.09%	)#	2/28/2034			524,000		524,362
U.S. Bancorp	5.384% (SOFR + 1.56%	)#	1/23/2030			1,088,000		1,093,088
UBS Group AG (Switzerland)†(d)	3.869% (3 mo. USD LIBOR + 1.41%	)#	1/12/2029			3,550,000		3,358,433
UBS Group AG (Switzerland)†(d)	9.25% (5 yr. CMT + 4.75%	)#	–	(h)		1,209,000		1,312,944
UBS Group AG (Switzerland)†(d)	9.25% (5 yr. CMT + 4.76%	)#	–	(h)		802,000		907,092
UniCredit SpA (Italy)†(d)	7.296% (5 yr. USD ICE Swap + 4.91%	)#	4/2/2034			2,274,000		2,339,120
Webster Financial Corp.	4.10%		3/25/2029			1,622,000		1,490,748
Western Alliance Bancorp	3.00% (3 mo. USD Term SOFR + 2.25%	)#	6/15/2031			1,995,000		1,722,204
Yapi ve Kredi Bankasi AS (Turkey)†(d)	9.25% (5 yr. CMT + 5.28%	)#	1/17/2034			1,024,000		1,054,843
Total								60,623,212
Beverages 0.30%
Bacardi Ltd.†	4.70%		5/15/2028			1,331,000		1,299,389
Bacardi Ltd./Bacardi-Martini BV†	5.25%		1/15/2029			898,000		889,778
Central American Bottling Corp./CBC Bottling Holdco SL/Beliv Holdco SL (Guatemala)†(d)	5.25%		4/27/2029			1,196,000		1,140,873
Total								3,330,040
Building Materials 1.22%
ACProducts Holdings, Inc.†	6.375%		5/15/2029			1,468,000		1,140,628
Builders FirstSource, Inc.†	4.25%		2/1/2032			1,153,000		1,034,840
Builders FirstSource, Inc.†	6.375%		6/15/2032			1,079,000		1,095,909
Carrier Global Corp.	5.90%		3/15/2034			388,000		407,965
Carrier Global Corp.	6.20%		3/15/2054			413,000		455,109
EMRLD Borrower LP/Emerald Co.-Issuer, Inc.†	6.625%		12/15/2030			2,783,000		2,813,176
Griffon Corp.	5.75%		3/1/2028			819,000		802,666
MIWD Holdco II LLC/MIWD Finance Corp.†	5.50%		2/1/2030			1,800,000		1,658,370
Smyrna Ready Mix Concrete LLC†	6.00%		11/1/2028			1,190,000		1,164,513
St. Mary’s Cement, Inc. (Canada)†(d)	5.75%		4/2/2034			414,000		411,102
Standard Industries, Inc.†	4.375%		7/15/2030			768,000		690,617
Summit Materials LLC/Summit Materials Finance Corp.†	7.25%		1/15/2031			808,000		840,435
Vulcan Materials Co.	4.50%		6/15/2047			1,186,000		1,038,057
Total								13,553,387

12 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Chemicals 1.30%
Cabot Corp.	5.00%	6/30/2032	$	1,611,000	$	1,574,176
Celanese U.S. Holdings LLC	6.165%	7/15/2027		2,351,000		2,395,551
Ingevity Corp.†	3.875%	11/1/2028		1,275,000		1,152,870
OCI NV (Netherlands)†(d)	6.70%	3/16/2033		1,111,000		1,108,302
OCP SA (Malaysia)†(d)	3.75%	6/23/2031		2,235,000		1,910,757
Olin Corp.	5.00%	2/1/2030		1,347,000		1,279,503
Olympus Water U.S. Holding Corp.†	9.75%	11/15/2028		1,160,000		1,237,101
SCIH Salt Holdings, Inc.†	4.875%	5/1/2028		1,141,000		1,064,143
SCIH Salt Holdings, Inc.†	6.625%	5/1/2029		1,341,000		1,243,027
SK Invictus Intermediate II SARL (Luxembourg)†(d)	5.00%	10/30/2029		1,575,000		1,405,514
Total						14,370,944
Coal 0.36%
SunCoke Energy, Inc.†	4.875%	6/30/2029		1,812,000		1,642,484
Teck Resources Ltd. (Canada)(d)	3.90%	7/15/2030		1,670,000		1,541,198
Warrior Met Coal, Inc.†	7.875%	12/1/2028		849,000		855,914
Total						4,039,596
Commercial Services 1.37%
Adani Ports & Special Economic Zone Ltd. (India)(d)	4.00%	7/30/2027		825,000		757,852
Adani Ports & Special Economic Zone Ltd. (India)(d)	4.20%	8/4/2027		407,000		376,316
Allied Universal Holdco LLC†	7.875%	2/15/2031		1,195,000		1,211,786
Allied Universal Holdco LLC/Allied Universal Finance Corp.†	6.625%	7/15/2026		276,000		276,050
Allied Universal Holdco LLC/Allied Universal Finance Corp./Atlas Luxco 4 SARL (Luxembourg)†(d)	4.625%	6/1/2028		1,262,000		1,153,860
Ashtead Capital, Inc.†	5.50%	8/11/2032		892,000		872,684
Ashtead Capital, Inc.†	5.55%	5/30/2033		902,000		887,667
Ashtead Capital, Inc.†	5.80%	4/15/2034		486,000		485,729
Brink’s Co.†	4.625%	10/15/2027		762,000		724,051
CoreCivic, Inc.	8.25%	4/15/2029		1,204,000		1,260,281
Garda World Security Corp. (Canada)†(d)	7.75%	2/15/2028		717,000		735,871
Gartner, Inc.†	3.625%	6/15/2029		1,796,000		1,627,826
GXO Logistics, Inc.	2.65%	7/15/2031		1,389,000		1,132,005
Hertz Corp.	Zero Coupon	10/15/2024		987,000		39,480

See Notes to Schedule of Investments. 13

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Commercial Services (continued)
Hertz Corp.†	Zero Coupon	1/15/2028	$	1,887,000	$	188,700
ITR Concession Co. LLC†	5.183%	7/15/2035		785,000		679,363
NESCO Holdings II, Inc.†	5.50%	4/15/2029		1,166,000		1,104,455
Wand NewCo 3, Inc.†	7.625%	1/30/2032		1,657,000		1,715,106
Total						15,229,082
Computers 1.28%
Booz Allen Hamilton, Inc.	5.95%	8/4/2033		954,000		988,112
Crowdstrike Holdings, Inc.	3.00%	2/15/2029		5,172,000		4,592,568
Fortinet, Inc.	2.20%	3/15/2031		1,119,000		934,944
McAfee Corp.†	7.375%	2/15/2030		1,302,000		1,195,420
NCR Atleos Corp.†	9.50%	4/1/2029		2,085,000		2,232,272
NCR Voyix Corp.†	5.125%	4/15/2029		1,170,000		1,086,472
NetApp, Inc.	2.70%	6/22/2030		518,000		449,029
Seagate HDD Cayman (Cayman Islands)†(d)	8.25%	12/15/2029		1,034,000		1,112,071
Seagate HDD Cayman (Cayman Islands)†(d)	8.50%	7/15/2031		448,000		484,596
Western Digital Corp.	3.10%	2/1/2032		1,421,000		1,145,498
Total						14,220,982
Distribution/Wholesale 0.67%
American Builders & Contractors Supply Co., Inc.†	4.00%	1/15/2028		1,214,000		1,137,525
Ferguson Finance PLC (United Kingdom)†(d)	3.25%	6/2/2030		1,457,000		1,304,383
H&E Equipment Services, Inc.†	3.875%	12/15/2028		1,190,000		1,090,883
LKQ Corp.	6.25%	6/15/2033		1,344,000		1,400,581
Ritchie Bros Holdings, Inc.†	7.75%	3/15/2031		1,087,000		1,138,625
Windsor Holdings III LLC†	8.50%	6/15/2030		1,263,000		1,325,846
Total						7,397,843
Diversified Financial Services 2.25%
AG Issuer LLC†	6.25%	3/1/2028		1,220,000		1,195,671
Aircastle Ltd.†	6.50%	7/18/2028		1,132,000		1,155,546
Ally Financial, Inc.	6.70%	2/14/2033		2,277,000		2,302,641
Apollo Global Management, Inc.	6.375%	11/15/2033		1,000,000		1,076,197
ARES Management Corp.	6.375%	11/10/2028		1,162,000		1,218,862
Avolon Holdings Funding Ltd. (Ireland)†(d)	4.25%	4/15/2026		1,562,000		1,508,135
Azul Secured Finance LLP†	11.50%	5/28/2029		1,953,666		1,679,561
Coinbase Global, Inc.†	3.375%	10/1/2028		2,129,000		1,826,422
Coinbase Global, Inc.†	3.625%	10/1/2031		642,000		519,130
Freedom Mortgage Holdings LLC†	9.25%	2/1/2029		1,048,000		1,073,516
Global Aircraft Leasing Co. Ltd. (Cayman Islands)†(d)	6.50%	9/15/2024		1,356,447		1,287,641

14 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date		Principal Amount‡		Fair Value
Diversified Financial Services (continued)
ILFC E-Capital Trust I†	7.145% (3 mo. USD Term SOFR + 1.81%	)#	12/21/2065		$	752,000	$	589,256
ILFC E-Capital Trust II†	7.395% (3 mo. USD Term SOFR + 2.06%	)#	12/21/2065			394,000		316,397
Jane Street Group/JSG Finance, Inc.†	4.50%		11/15/2029			896,000		829,762
LPL Holdings, Inc.†	4.00%		3/15/2029			1,077,000		990,824
Macquarie Airfinance Holdings Ltd. (United Kingdom)†(d)	6.50%		3/26/2031			799,000		813,850
Navient Corp.	5.50%		3/15/2029			1,390,000		1,295,760
Navient Corp.	6.75%		6/15/2026			1,077,000		1,086,629
Neuberger Berman Group LLC/Neuberger Berman Finance Corp.†	4.875%		4/15/2045			1,377,000		1,118,349
PennyMac Financial Services, Inc.†	7.875%		12/15/2029			1,190,000		1,223,849
Synchrony Financial	7.25%		2/2/2033			1,830,000		1,818,764
Total								24,926,762
Electric 3.39%
Ausgrid Finance Pty. Ltd. (Australia)†(d)	4.35%		8/1/2028			1,217,000		1,170,294
Calpine Corp.†	4.50%		2/15/2028			1,198,000		1,137,205
Calpine Corp.†	4.625%		2/1/2029			3,814,000		3,533,848
Calpine Corp.†	5.125%		3/15/2028			1,328,000		1,275,662
Cleveland Electric Illuminating Co.†	3.50%		4/1/2028			1,118,000		1,044,536
Constellation Energy Generation LLC	5.60%		6/15/2042			1,031,000		1,019,675
Constellation Energy Generation LLC	5.80%		3/1/2033			1,390,000		1,433,400
Constellation Energy Generation LLC	6.25%		10/1/2039			2,067,000		2,179,243
Constellation Energy Generation LLC	6.50%		10/1/2053			768,000		845,591
ITC Holdings Corp.†	4.95%		9/22/2027			1,129,000		1,122,292
Minejesa Capital BV (Netherlands)†(d)	4.625%		8/10/2030			1,441,190		1,371,405
NextEra Energy Operating Partners LP†	4.50%		9/15/2027			1,774,000		1,661,696
NRG Energy, Inc.†	7.00%		3/15/2033			826,000		882,189
NRG Energy, Inc.†	10.25% (5 yr. CMT + 5.92%	)#	–	(h)		2,111,000		2,266,471
NSG Holdings LLC/NSG Holdings, Inc.†	7.75%		12/15/2025			88,414		88,039
Pacific Gas & Electric Co.	6.15%		1/15/2033			3,075,000		3,172,808
Palomino Funding Trust I†	7.233%		5/17/2028			2,239,000		2,352,261
Pattern Energy Operations LP/Pattern Energy Operations, Inc.†	4.50%		8/15/2028			1,173,000		1,094,527
PG&E Corp.	5.25%		7/1/2030			1,133,000		1,077,811
Pike Corp.†	5.50%		9/1/2028			1,283,000		1,229,377
Pike Corp.†	8.625%		1/31/2031			792,000		842,622
Puget Energy, Inc.	4.10%		6/15/2030			1,000,000		915,004
Talen Energy Supply LLC†	8.625%		6/1/2030			1,237,000		1,323,724

See Notes to Schedule of Investments. 15

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date		Principal Amount‡		Fair Value
Electric (continued)
Vistra Corp.†	7.00% (5 yr. CMT + 5.74%	)#	–	(h)	$	1,135,000	$	1,124,945
Vistra Operations Co. LLC†	4.375%		5/1/2029			3,748,000		3,475,988
Total								37,640,613
Electronics 0.21%
Imola Merger Corp.†	4.75%		5/15/2029			886,000		831,543
Trimble, Inc.	6.10%		3/15/2033			1,426,000		1,490,557
Total								2,322,100
Energy-Alternate Sources 0.43%
TerraForm Power Operating LLC†	4.75%		1/15/2030			1,484,000		1,361,503
TerraForm Power Operating LLC†	5.00%		1/31/2028			1,000,000		953,163
Topaz Solar Farms LLC†	5.75%		9/30/2039			2,484,735		2,483,344
Total								4,798,010
Engineering & Construction 1.00%
Aeropuerto Internacional de Tocumen SA (Panama)†(d)	5.125%		8/11/2061			2,690,000		1,973,643
Brand Industrial Services, Inc.†	10.375%		8/1/2030			2,015,000		2,184,085
Fluor Corp.	4.25%		9/15/2028			1,340,000		1,253,335
Heathrow Finance PLC	6.625%		3/1/2031		GBP	863,000		1,079,409
Jacobs Engineering Group, Inc.	5.90%		3/1/2033		$	1,087,000		1,101,301
Jacobs Engineering Group, Inc.	6.35%		8/18/2028			845,000		873,833
MasTec, Inc.†	4.50%		8/15/2028			1,146,000		1,090,643
TAV Havalimanlari Holding AS (Turkey)†(d)	8.50%		12/7/2028			1,080,000		1,115,883
TopBuild Corp.†	4.125%		2/15/2032			451,000		399,578
Total								11,071,710
Entertainment 1.75%
AMC Entertainment Holdings, Inc.†	10.00%		6/15/2026			1,307,604		976,117
Boyne USA, Inc.†	4.75%		5/15/2029			1,174,000		1,089,011
Caesars Entertainment, Inc.†	4.625%		10/15/2029			1,956,000		1,785,184
Caesars Entertainment, Inc.†	7.00%		2/15/2030			1,549,000		1,590,993
Churchill Downs, Inc.†	4.75%		1/15/2028			1,787,000		1,702,384
Churchill Downs, Inc.†	5.50%		4/1/2027			1,631,000		1,602,030
Merlin Entertainments Ltd. (United Kingdom)†(d)	5.75%		6/15/2026			1,360,000		1,348,287
Midwest Gaming Borrower LLC/Midwest Gaming Finance Corp.†	4.875%		5/1/2029			1,984,000		1,838,714
Mohegan Tribal Gaming Authority†	8.00%		2/1/2026			1,980,000		1,939,143
Resorts World Las Vegas LLC/RWLV Capital, Inc.†	4.625%		4/16/2029			2,000,000		1,826,903
SeaWorld Parks & Entertainment, Inc.†	5.25%		8/15/2029			2,394,000		2,256,463
WMG Acquisition Corp.†	3.75%		12/1/2029			1,613,000		1,446,594
Total								19,401,823

16 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Environmental Control 0.25%
Madison IAQ LLC†	4.125%	6/30/2028	$	1,677,000	$	1,552,540
Madison IAQ LLC†	5.875%	6/30/2029		1,372,000		1,256,608
Total						2,809,148
Food 1.21%
Albertsons Cos., Inc./Safeway, Inc./New Albertsons LP/Albertsons LLC†	3.50%	3/15/2029		2,486,000		2,233,670
Bellis Acquisition Co. PLC	3.25%	2/16/2026	GBP	1,350,000		1,613,243
Chobani LLC/Chobani Finance Corp., Inc.†	4.625%	11/15/2028	$	827,000		772,151
Chobani LLC/Chobani Finance Corp., Inc.†	7.625%	7/1/2029		710,000		720,650
J M Smucker Co.	6.20%	11/15/2033		710,000		757,771
Lamb Weston Holdings, Inc.†	4.125%	1/31/2030		1,243,000		1,134,533
McCormick & Co., Inc.	4.95%	4/15/2033		934,000		924,229
Post Holdings, Inc.†	4.50%	9/15/2031		1,190,000		1,071,597
Post Holdings, Inc.†	4.625%	4/15/2030		1,174,000		1,078,628
Smithfield Foods, Inc.†	5.20%	4/1/2029		2,021,000		1,947,702
U.S. Foods, Inc.†	4.75%	2/15/2029		1,241,000		1,179,514
Total						13,433,688
Gas 0.21%
Brooklyn Union Gas Co.†	3.407%	3/10/2026		1,368,000		1,312,570
Southwest Gas Corp.	4.05%	3/15/2032		1,055,000		969,022
Total						2,281,592
Hand/Machine Tools 0.29%
Regal Rexnord Corp.†	6.40%	4/15/2033		3,145,000		3,264,909
Health Care-Products 0.77%
Bausch & Lomb Corp. (Canada)†(d)	8.375%	10/1/2028		1,066,000		1,104,280
Boston Scientific Corp.	6.50%	11/15/2035		701,000		780,400
GE HealthCare Technologies, Inc.	6.377%	11/22/2052		699,000		789,761
Medline Borrower LP†	3.875%	4/1/2029		2,370,000		2,158,742
Medline Borrower LP†	5.25%	10/1/2029		1,293,000		1,223,092
Solventum Corp.†	5.45%	3/13/2031		1,417,000		1,413,814
Solventum Corp.†	5.60%	3/23/2034		1,012,000		1,015,762
Total						8,485,851
Health Care-Services 3.40%
Catalent Pharma Solutions, Inc.†	3.125%	2/15/2029		3,691,000		3,530,548
Charles River Laboratories International, Inc.†	3.75%	3/15/2029		1,304,000		1,191,385
CHS/Community Health Systems, Inc.†	4.75%	2/15/2031		5,153,000		3,981,475
CHS/Community Health Systems, Inc.†	5.25%	5/15/2030		1,116,000		910,971

See Notes to Schedule of Investments. 17

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Health Care-Services (continued)
CHS/Community Health Systems, Inc.†	6.875%	4/15/2029	$	808,000	$	605,703
DaVita, Inc.†	4.625%	6/1/2030		3,318,000		2,972,742
HCA, Inc.	3.50%	9/1/2030		2,358,000		2,133,234
HCA, Inc.	5.50%	6/1/2033		1,121,000		1,125,428
HCA, Inc.	7.69%	6/15/2025		420,000		425,194
Heartland Dental LLC/Heartland Dental Finance Corp.†	8.50%	5/1/2026		1,187,000		1,178,161
IQVIA, Inc.	6.25%	2/1/2029		745,000		774,163
LifePoint Health, Inc.†	9.875%	8/15/2030		1,137,000		1,190,771
LifePoint Health, Inc.†	11.00%	10/15/2030		1,312,000		1,403,894
Molina Healthcare, Inc.†	3.875%	11/15/2030		1,975,000		1,757,552
Molina Healthcare, Inc.†	3.875%	5/15/2032		2,065,000		1,799,627
Montefiore Obligated Group	5.246%	11/1/2048		2,454,000		1,859,847
RegionalCare Hospital Partners Holdings, Inc./LifePoint Health, Inc.†	9.75%	12/1/2026		591,000		592,248
Star Parent, Inc.†	9.00%	10/1/2030		1,879,000		1,990,906
Surgery Center Holdings, Inc.†(b)	7.25%	4/15/2032		1,175,000		1,185,593
Tenet Healthcare Corp.	4.375%	1/15/2030		1,319,000		1,220,209
Tenet Healthcare Corp.	6.125%	10/1/2028		3,345,000		3,335,805
Tenet Healthcare Corp.	6.125%	6/15/2030		1,286,000		1,284,657
Tenet Healthcare Corp.†	6.75%	5/15/2031		1,270,000		1,294,740
Total						37,744,853
Holding Companies-Diversified 0.20%
Benteler International AG (Austria)†(d)	10.50%	5/15/2028		1,000,000		1,082,408
Stena International SA (Luxembourg)†(d)	7.25%	1/15/2031		1,175,000		1,173,588
Total						2,255,996
Home Builders 0.20%
PulteGroup, Inc.	6.375%	5/15/2033		1,017,000		1,080,426
Toll Brothers Finance Corp.	4.35%	2/15/2028		1,144,000		1,106,378
Total						2,186,804
Home Furnishings 0.07%
Leggett & Platt, Inc.	4.40%	3/15/2029		828,000		777,454
Insurance 2.45%
Alliant Holdings Intermediate LLC/Alliant Holdings Co-Issuer†	6.75%	10/15/2027		1,486,000		1,465,261
Alliant Holdings Intermediate LLC/Alliant Holdings Co-Issuer†	6.75%	4/15/2028		2,130,000		2,147,217
Arch Capital Finance LLC	4.011%	12/15/2026		1,011,000		980,916
Ardonagh Finco Ltd. (United Kingdom)†(d)	7.75%	2/15/2031		952,000		948,674

18 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
Insurance (continued)
Ardonagh Group Finance Ltd. (United Kingdom)†(d)	8.875%		2/15/2032	$	1,131,000	$	1,117,889
Arthur J Gallagher & Co.	6.75%		2/15/2054		704,000		799,837
Athene Holding Ltd.	5.875%		1/15/2034		1,812,000		1,816,780
AXIS Specialty Finance PLC (United Kingdom)(d)	5.15%		4/1/2045		1,595,000		1,419,680
Brown & Brown, Inc.	2.375%		3/15/2031		1,581,000		1,311,734
Howden U.K. Refinance PLC/Howden U.K. Refinance 2 PLC/Howden U.S. Refinance LLC (United Kingdom)†(d)	7.25%		2/15/2031		1,222,000		1,227,880
HUB International Ltd.†	7.25%		6/15/2030		1,572,000		1,616,656
HUB International Ltd.†	7.375%		1/31/2032		909,000		915,689
Jones Deslauriers Insurance Management, Inc. (Canada)†(d)	8.50%		3/15/2030		540,000		563,358
Old Republic International Corp.	5.75%		3/28/2034		720,000		723,783
Panther Escrow Issuer LLC†(b)	7.125%		6/1/2031		1,376,000		1,400,094
PartnerRe Finance B LLC	3.70%		7/2/2029		1,041,000		995,385
RenaissanceRe Holdings Ltd.	5.75%		6/5/2033		2,242,000		2,262,231
Selective Insurance Group, Inc.	5.375%		3/1/2049		721,000		690,130
Swiss RE Subordinated Finance PLC (United Kingdom)†(b)(d)	5.698% (3 mo. USD Term SOFR + 1.81%	)#	4/5/2035		1,200,000		1,201,134
Transatlantic Holdings, Inc.	8.00%		11/30/2039		934,000		1,196,844
Willis North America, Inc.	5.90%		3/5/2054		2,364,000		2,395,108
Total							27,196,280
Internet 0.45%
EquipmentShare.com, Inc.†	9.00%		5/15/2028		2,756,000		2,842,102
Gen Digital, Inc.†	6.75%		9/30/2027		1,126,000		1,143,194
Tencent Holdings Ltd. (China)†(d)	3.595%		1/19/2028		1,078,000		1,024,076
Total							5,009,372
Investment Companies 0.26%
ARES Capital Corp.	7.00%		1/15/2027		1,746,000		1,796,910
Blackstone Private Credit Fund†	6.25%		1/25/2031		1,114,000		1,119,872
Total							2,916,782
Iron-Steel 0.48%
ArcelorMittal SA (Luxembourg)(d)	6.55%		11/29/2027		1,037,000		1,076,660
Commercial Metals Co.	4.375%		3/15/2032		791,000		713,469
Mineral Resources Ltd. (Australia)†(d)	8.50%		5/1/2030		1,340,000		1,381,670
Steel Dynamics, Inc.	3.45%		4/15/2030		948,000		870,122
U.S. Steel Corp.	6.875%		3/1/2029		1,240,000		1,253,011
Total							5,294,932

See Notes to Schedule of Investments. 19

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Leisure Time 1.51%
Carnival Corp.†	4.00%	8/1/2028	$	2,100,000	$	1,957,557
Carnival Corp.†	5.75%	3/1/2027		2,494,000		2,469,959
Carnival Corp.†	6.00%	5/1/2029		1,528,000		1,508,648
NCL Corp. Ltd.†	5.875%	3/15/2026		1,728,000		1,706,937
NCL Corp. Ltd.†	5.875%	2/15/2027		1,378,000		1,362,377
NCL Corp. Ltd.†	8.375%	2/1/2028		621,000		656,424
Polaris, Inc.	6.95%	3/15/2029		2,322,000		2,471,819
Royal Caribbean Cruises Ltd.†	5.50%	8/31/2026		2,000,000		1,983,660
Royal Caribbean Cruises Ltd.†	6.25%	3/15/2032		1,088,000		1,097,351
Viking Cruises Ltd.†	5.875%	9/15/2027		1,354,000		1,329,378
Viking Ocean Cruises Ship VII Ltd.†	5.625%	2/15/2029		241,000		234,750
Total						16,778,860
Lodging 1.53%
Genting New York LLC/GENNY Capital, Inc.†	3.30%	2/15/2026		1,306,000		1,253,592
Hilton Domestic Operating Co., Inc.†	3.75%	5/1/2029		1,268,000		1,164,186
Hilton Grand Vacations Borrower Escrow LLC/Hilton Grand Vacations Borrower Escrow, Inc.†	6.625%	1/15/2032		1,343,000		1,349,409
Las Vegas Sands Corp.	3.50%	8/18/2026		965,000		914,056
Marriott International, Inc.	3.50%	10/15/2032		1,250,000		1,096,370
MGM China Holdings Ltd. (Macau)†(d)	5.875%	5/15/2026		1,150,000		1,136,499
Sands China Ltd. (Macau)(d)	2.85%	3/8/2029		2,826,000		2,458,022
Sands China Ltd. (Macau)(d)	4.625%	6/18/2030		2,240,000		2,055,890
Sands China Ltd. (Macau)(d)	5.40%	8/8/2028		1,442,000		1,415,089
Studio City Finance Ltd. (Hong Kong)(d)	5.00%	1/15/2029		1,278,000		1,125,490
Wynn Las Vegas LLC/Wynn Las Vegas Capital Corp.†	5.25%	5/15/2027		1,861,000		1,823,879
Wynn Macau Ltd. (Macau)†(d)	5.50%	10/1/2027		1,193,000		1,142,901
Total						16,935,383
Machinery: Construction & Mining 0.08%
Vertiv Group Corp.†	4.125%	11/15/2028		921,000		857,978
Machinery-Diversified 0.68%
Husky Injection Molding Systems Ltd./Titan Co.-Borrower LLC (Canada)†(d)	9.00%	2/15/2029		582,000		602,584
nVent Finance SARL (Luxembourg)(d)	2.75%	11/15/2031		1,086,000		896,634
nVent Finance SARL (Luxembourg)(d)	5.65%	5/15/2033		1,794,000		1,809,230
SPX FLOW, Inc.†	8.75%	4/1/2030		874,000		883,495
TK Elevator U.S. Newco, Inc.†	5.25%	7/15/2027		2,389,000		2,310,700
Westinghouse Air Brake Technologies Corp.	5.611%	3/11/2034		1,048,000		1,061,950
Total						7,564,593

20 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Media 2.89%
AMC Networks, Inc.	4.25%	2/15/2029	$	1,450,000	$	1,028,727
AMC Networks, Inc.†(b)	10.25%	1/15/2029		874,000		880,892
CCO Holdings LLC/CCO Holdings Capital Corp.†	5.00%	2/1/2028		1,746,000		1,626,504
CCO Holdings LLC/CCO Holdings Capital Corp.†	5.375%	6/1/2029		2,373,000		2,174,042
CCO Holdings LLC/CCO Holdings Capital Corp.†	6.375%	9/1/2029		1,629,000		1,546,561
CCO Holdings LLC/CCO Holdings Capital Corp.†	7.375%	3/1/2031		2,658,000		2,608,316
CSC Holdings LLC†	4.125%	12/1/2030		471,000		337,161
CSC Holdings LLC†	5.375%	2/1/2028		820,000		706,006
CSC Holdings LLC†	6.50%	2/1/2029		875,000		742,136
CSC Holdings LLC†	11.75%	1/31/2029		1,326,000		1,328,897
DISH DBS Corp.	5.875%	11/15/2024		1,722,000		1,651,345
DISH Network Corp.†	11.75%	11/15/2027		5,254,000		5,369,120
FactSet Research Systems, Inc.	3.45%	3/1/2032		1,066,000		942,142
Gray Television, Inc.†	5.375%	11/15/2031		1,552,000		1,019,159
LCPR Senior Secured Financing DAC (Ireland)†(d)	6.75%	10/15/2027		1,108,000		1,040,953
News Corp.†	3.875%	5/15/2029		1,198,000		1,096,514
Nexstar Media, Inc.†	4.75%	11/1/2028		1,280,000		1,167,526
Sunrise FinCo I BV (Netherlands)†(d)	4.875%	7/15/2031		2,867,000		2,561,515
Univision Communications, Inc.†	4.50%	5/1/2029		2,508,000		2,243,492
VZ Secured Financing BV (Netherlands)†(d)	5.00%	1/15/2032		2,312,000		1,987,334
Total						32,058,342
Metal Fabricate-Hardware 0.23%
Roller Bearing Co. of America, Inc.†	4.375%	10/15/2029		2,799,000		2,566,317
Mining 1.84%
Alcoa Nederland Holding BV (Netherlands)†(d)	7.125%	3/15/2031		517,000		527,290
Anglo American Capital PLC (United Kingdom)†(d)	5.625%	4/1/2030		1,100,000		1,116,628
First Quantum Minerals Ltd. (Canada)†(d)	8.625%	6/1/2031		1,406,000		1,368,503
First Quantum Minerals Ltd. (Canada)†(d)	9.375%	3/1/2029		360,000		373,379
FMG Resources August 2006 Pty. Ltd. (Australia)†(d)	4.375%	4/1/2031		2,270,000		2,030,347
FMG Resources August 2006 Pty. Ltd. (Australia)†(d)	6.125%	4/15/2032		2,271,000		2,247,936
Freeport Indonesia PT (Indonesia)(d)	6.20%	4/14/2052		1,729,000		1,720,179
Freeport-McMoRan, Inc.	5.40%	11/14/2034		1,782,000		1,761,858
Glencore Funding LLC†	2.50%	9/1/2030		1,162,000		987,260
Hecla Mining Co.	7.25%	2/15/2028		1,194,000		1,196,954
Kaiser Aluminum Corp.†	4.50%	6/1/2031		1,528,000		1,353,342

See Notes to Schedule of Investments. 21

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date		Principal Amount‡		Fair Value
Mining (continued)
Kinross Gold Corp. (Canada)†(d)	6.25%		7/15/2033		$	1,800,000	$	1,868,528
Mirabela Nickel Ltd.	Zero Coupon		9/10/2044			15,172		–	(f)
Novelis Corp.†	4.75%		1/30/2030			2,071,000		1,912,481
WE Soda Investments Holding PLC (United Kingdom)†(d)	9.50%		10/6/2028			1,815,000		1,889,295
Total								20,353,980
Oil & Gas 9.43%
Antero Resources Corp.†	5.375%		3/1/2030			4,893,000		4,703,446
Apache Corp.	4.25%		1/15/2030			1,155,000		1,070,359
Apache Corp.	4.75%		4/15/2043			2,325,000		1,834,683
Apache Corp.	5.10%		9/1/2040			2,569,000		2,206,391
Baytex Energy Corp. (Canada)†(d)	8.50%		4/30/2030			1,680,000		1,755,723
Borr IHC Ltd./Borr Finance LLC†	10.00%		11/15/2028			2,415,000		2,521,919
BP Capital Markets PLC (United Kingdom)(d)	6.45% (5 yr. CMT + 2.15%	)#	–	(h)		473,000		491,016
Callon Petroleum Co.†	8.00%		8/1/2028			1,951,000		2,046,080
Cenovus Energy, Inc. (Canada)(d)	3.75%		2/15/2052			798,000		587,256
Cenovus Energy, Inc. (Canada)(d)	5.40%		6/15/2047			3,346,000		3,164,268
Chesapeake Energy Corp.†	6.75%		4/15/2029			958,000		969,040
CITGO Petroleum Corp.†	7.00%		6/15/2025			1,160,000		1,159,279
CITGO Petroleum Corp.†	8.375%		1/15/2029			1,426,000		1,499,455
Civitas Resources, Inc.†	8.625%		11/1/2030			999,000		1,073,388
Civitas Resources, Inc.†	8.75%		7/1/2031			1,345,000		1,440,912
Comstock Resources, Inc.†	6.75%		3/1/2029			1,713,000		1,635,132
Continental Resources, Inc.	4.375%		1/15/2028			1,131,000		1,093,361
Continental Resources, Inc.†	5.75%		1/15/2031			2,222,000		2,210,193
Cosan Luxembourg SA (Luxembourg)†(d)	7.25%		6/27/2031			1,202,000		1,228,367
Crescent Energy Finance LLC†	7.625%		4/1/2032			891,000		898,503
Crescent Energy Finance LLC†	9.25%		2/15/2028			1,039,000		1,097,944
Diamond Foreign Asset Co./Diamond Finance LLC (Cayman Islands)†(d)	8.50%		10/1/2030			1,058,000		1,117,389
Ecopetrol SA (Colombia)(d)	5.875%		5/28/2045			3,051,000		2,280,337
Encino Acquisition Partners Holdings LLC†	8.50%		5/1/2028			1,734,000		1,754,106
Helmerich & Payne, Inc.	2.90%		9/29/2031			1,462,000		1,228,589
Kosmos Energy Ltd.†	7.75%		5/1/2027			2,079,000		2,054,254
Marathon Oil Corp.	5.70%		4/1/2034			1,482,000		1,482,542
Matador Resources Co.†(b)	6.50%		4/15/2032			1,172,000		1,174,886
Matador Resources Co.†	6.875%		4/15/2028			2,168,000		2,219,653
MC Brazil Downstream Trading SARL (Luxembourg)†(d)	7.25%		6/30/2031			2,125,880		1,925,989
MEG Energy Corp. (Canada)†(d)	5.875%		2/1/2029			3,062,000		3,011,472

22 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Oil & Gas (continued)
Murphy Oil Corp.	6.375%	7/15/2028	$	727,000	$	732,374
Nabors Industries, Inc.†	7.375%	5/15/2027		1,124,000		1,122,841
Noble Finance II LLC†	8.00%	4/15/2030		1,002,000		1,044,425
Occidental Petroleum Corp.	6.125%	1/1/2031		1,899,000		1,968,446
Occidental Petroleum Corp.	6.625%	9/1/2030		837,000		887,689
Occidental Petroleum Corp.	7.50%	5/1/2031		1,013,000		1,128,237
Occidental Petroleum Corp.	8.875%	7/15/2030		1,000,000		1,162,635
Ovintiv, Inc.	6.50%	2/1/2038		1,948,000		2,031,574
Patterson-UTI Energy, Inc.	5.15%	11/15/2029		1,562,000		1,529,401
Patterson-UTI Energy, Inc.	7.15%	10/1/2033		1,203,000		1,294,095
Permian Resources Operating LLC†	6.875%	4/1/2027		731,000		731,732
Petroleos Mexicanos (Mexico)(d)	5.35%	2/12/2028		1,589,000		1,408,830
Petroleos Mexicanos (Mexico)(d)	10.00%	2/7/2033		2,153,000		2,145,614
Phillips 66 Co.	4.95%	12/1/2027		1,119,000		1,120,163
Precision Drilling Corp. (Canada)†(d)	6.875%	1/15/2029		1,295,000		1,293,798
Raizen Fuels Finance SA (Luxembourg)†(d)	6.45%	3/5/2034		816,000		837,716
Range Resources Corp.†	4.75%	2/15/2030		2,643,000		2,466,448
Rockcliff Energy II LLC†	5.50%	10/15/2029		1,291,000		1,209,300
Seadrill Finance Ltd.†	8.375%	8/1/2030		1,084,000		1,138,248
SM Energy Co.	6.625%	1/15/2027		4,388,000		4,387,104
Southwestern Energy Co.	5.375%	2/1/2029		1,546,000		1,502,911
Southwestern Energy Co.	5.375%	3/15/2030		1,659,000		1,598,266
Suncor Energy, Inc. (Canada)(d)	7.15%	2/1/2032		1,408,000		1,560,842
Talos Production, Inc.†	9.00%	2/1/2029		859,000		912,879
Transocean, Inc.†	8.75%	2/15/2030		2,718,000		2,835,787
Vermilion Energy, Inc. (Canada)†(d)	6.875%	5/1/2030		1,670,000		1,632,038
Viper Energy, Inc.†	5.375%	11/1/2027		1,751,000		1,715,155
Viper Energy, Inc.†	7.375%	11/1/2031		784,000		815,737
Vital Energy, Inc.†	7.75%	7/31/2029		1,921,000		1,938,377
Vital Energy, Inc.†	7.875%	4/15/2032		1,370,000		1,392,814
Vital Energy, Inc.	9.75%	10/15/2030		1,161,000		1,270,613
Vital Energy, Inc.	10.125%	1/15/2028		3,500,000		3,675,101
YPF SA (Argentina)(d)	9.50%	1/17/2031		1,076,000		1,100,513
Total						104,527,635
Oil & Gas Services 0.67%
Kodiak Gas Services LLC†	7.25%	2/15/2029		1,083,000		1,103,851
Oceaneering International, Inc.	6.00%	2/1/2028		1,964,000		1,936,513
USA Compression Partners LP/USA Compression Finance Corp.	6.875%	9/1/2027		1,271,000		1,274,818

See Notes to Schedule of Investments. 23

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Oil & Gas Services (continued)
USA Compression Partners LP/USA Compression Finance Corp.†	7.125%	3/15/2029	$	887,000	$	898,612
Weatherford International Ltd.†	8.625%	4/30/2030		2,101,000		2,195,112
Total						7,408,906
Packaging & Containers 0.83%
Ardagh Packaging Finance PLC/Ardagh Holdings USA, Inc. (Ireland)†(d)	4.125%	8/15/2026		1,189,000		1,077,138
Ardagh Packaging Finance PLC/Ardagh Holdings USA, Inc. (Ireland)†(d)	5.25%	8/15/2027		635,000		400,732
LABL, Inc.†	6.75%	7/15/2026		989,000		977,888
LABL, Inc.†	10.50%	7/15/2027		383,000		380,174
Mauser Packaging Solutions Holding Co.†	7.875%	8/15/2026		1,904,000		1,941,130
Mauser Packaging Solutions Holding Co.†	9.25%	4/15/2027		1,124,000		1,116,317
Owens-Brockway Glass Container, Inc.†	7.25%	5/15/2031		1,087,000		1,108,470
Sealed Air Corp.†	6.875%	7/15/2033		1,060,000		1,105,663
Trivium Packaging Finance BV (Netherlands)†(d)	5.50%	8/15/2026		1,115,000		1,100,352
Total						9,207,864
Pharmaceuticals 0.52%
BellRing Brands, Inc.†	7.00%	3/15/2030		1,506,000		1,553,035
Organon & Co./Organon Foreign Debt Co.-Issuer BV†	5.125%	4/30/2031		1,249,000		1,111,407
Owens & Minor, Inc.†	4.50%	3/31/2029		526,000		482,144
Owens & Minor, Inc.†	6.625%	4/1/2030		611,000		606,942
Perrigo Finance Unlimited Co. (Ireland)(d)	4.65%	6/15/2030		1,197,000		1,101,370
Teva Pharmaceutical Finance Netherlands III BV (Netherlands)(d)	3.15%	10/1/2026		979,000		916,042
Total						5,770,940
Pipelines 3.26%
AI Candelaria Spain SA (Spain)†(d)	5.75%	6/15/2033		1,646,000		1,337,143
AI Candelaria Spain SA (Spain)(d)	5.75%	6/15/2033		1,012,000		822,107
AI Candelaria Spain SA (Spain)(d)	5.75%	6/15/2033		251,000		203,902
AI Candelaria Spain SA (Spain)†(d)	7.50%	12/15/2028		1,072,498		1,051,168
Boardwalk Pipelines LP	5.625%	8/1/2034		1,659,000		1,660,381
Cheniere Energy Partners LP	3.25%	1/31/2032		1,350,000		1,151,043
Colonial Enterprises, Inc.†	3.25%	5/15/2030		1,241,000		1,120,844
Columbia Pipelines Operating Co. LLC†	5.927%	8/15/2030		651,000		668,181
CQP Holdco LP/BIP-V Chinook Holdco LLC†	5.50%	6/15/2031		2,373,000		2,244,659
Delek Logistics Partners LP/Delek Logistics Finance Corp.†	8.625%	3/15/2029		1,626,000		1,661,510

24 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Pipelines (continued)
DT Midstream, Inc.†	4.30%	4/15/2032	$	1,293,000	$	1,175,865
EnLink Midstream LLC†	6.50%	9/1/2030		1,587,000		1,634,151
EQM Midstream Partners LP†	6.375%	4/1/2029		1,037,000		1,045,430
EQM Midstream Partners LP†	6.50%	7/1/2027		1,536,000		1,550,952
Hess Midstream Operations LP†	5.125%	6/15/2028		918,000		889,052
Kinder Morgan, Inc.	5.20%	6/1/2033		1,059,000		1,043,482
NGPL PipeCo LLC†	3.25%	7/15/2031		1,530,000		1,308,076
NGPL PipeCo LLC†	4.875%	8/15/2027		852,000		831,579
ONEOK, Inc.	3.95%	3/1/2050		913,000		673,946
ONEOK, Inc.	4.45%	9/1/2049		1,063,000		865,190
ONEOK, Inc.	6.05%	9/1/2033		1,596,000		1,665,326
Sabal Trail Transmission LLC†	4.246%	5/1/2028		1,125,000		1,088,841
Venture Global Calcasieu Pass LLC†	4.125%	8/15/2031		1,293,000		1,150,711
Venture Global LNG, Inc.†	8.125%	6/1/2028		659,000		672,715
Venture Global LNG, Inc.†	8.375%	6/1/2031		1,186,000		1,223,826
Venture Global LNG, Inc.†	9.50%	2/1/2029		1,243,000		1,340,561
Western Midstream Operating LP	4.05%	2/1/2030		3,702,000		3,456,378
Western Midstream Operating LP	6.35%	1/15/2029		1,053,000		1,092,906
Williams Cos., Inc.	5.65%	3/15/2033		1,485,000		1,524,193
Total						36,154,118
Real Estate 0.31%
Cushman & Wakefield U.S. Borrower LLC†	6.75%	5/15/2028		1,104,000		1,091,048
Hunt Cos., Inc.†	5.25%	4/15/2029		1,866,000		1,708,643
Newmark Group, Inc.†	7.50%	1/12/2029		610,000		627,893
Total						3,427,584
REITS 1.29%
Brixmor Operating Partnership LP	5.50%	2/15/2034		1,187,000		1,172,667
EPR Properties	3.60%	11/15/2031		330,000		276,035
EPR Properties	3.75%	8/15/2029		233,000		206,000
GLP Capital LP/GLP Financing II, Inc.	4.00%	1/15/2030		1,272,000		1,162,077
GLP Capital LP/GLP Financing II, Inc.	4.00%	1/15/2031		1,278,000		1,141,262
GLP Capital LP/GLP Financing II, Inc.	5.75%	6/1/2028		1,000,000		1,001,529
Goodman U.S. Finance Five LLC†	4.625%	5/4/2032		1,095,000		1,005,932
Kite Realty Group LP	5.50%	3/1/2034		474,000		471,186
Rayonier LP	2.75%	5/17/2031		2,532,000		2,091,860
Regency Centers LP	5.25%	1/15/2034		711,000		708,561
Retail Opportunity Investments Partnership LP	6.75%	10/15/2028		1,147,000		1,188,680

See Notes to Schedule of Investments. 25

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
REITS (continued)
VICI Properties LP/VICI Note Co., Inc.†	4.625%	6/15/2025	$	1,101,000	$	1,085,062
VICI Properties LP/VICI Note Co., Inc.†	4.625%	12/1/2029		2,948,000		2,789,839
Total						14,300,690
Retail 2.41%
1011778 BC ULC/New Red Finance, Inc. (Canada)†(d)	4.00%	10/15/2030		1,294,000		1,153,888
Advance Auto Parts, Inc.	3.50%	3/15/2032		1,465,000		1,256,982
Advance Auto Parts, Inc.	3.90%	4/15/2030		1,262,000		1,145,209
Alimentation Couche-Tard, Inc. (Canada)†(d)	5.267%	2/12/2034		830,000		828,199
Bath & Body Works, Inc.	5.25%	2/1/2028		1,060,000		1,038,902
Carvana Co.†	13.00%	6/1/2030		1,187,000		1,158,684
Dick’s Sporting Goods, Inc.	4.10%	1/15/2052		2,222,000		1,612,469
Gap, Inc.†	3.875%	10/1/2031		2,669,000		2,260,445
Global Auto Holdings Ltd./AAG FH U.K. Ltd. (United Kingdom)†(d)	8.375%	1/15/2029		1,510,000		1,476,954
Global Auto Holdings Ltd./AAG FH U.K. Ltd. (United Kingdom)†(d)	8.75%	1/15/2032		766,000		741,913
LBM Acquisition LLC†	6.25%	1/15/2029		1,247,000		1,170,394
Murphy Oil USA, Inc.	4.75%	9/15/2029		1,500,000		1,423,812
NMG Holding Co., Inc./Neiman Marcus Group LLC†	7.125%	4/1/2026		1,118,000		1,095,835
PetSmart, Inc./PetSmart Finance Corp.†	4.75%	2/15/2028		985,000		923,152
PetSmart, Inc./PetSmart Finance Corp.†	7.75%	2/15/2029		1,697,000		1,653,442
SRS Distribution, Inc.†	4.625%	7/1/2028		1,478,000		1,490,313
Staples, Inc.†	7.50%	4/15/2026		1,169,000		1,142,039
Staples, Inc.†	10.75%	4/15/2027		1,302,000		1,238,800
Stonegate Pub Co. Financing 2019 PLC	8.25%	7/31/2025	GBP	1,515,000		1,855,987
Tiffany & Co.	4.90%	10/1/2044	$	1,466,000		1,388,465
White Cap Buyer LLC†	6.875%	10/15/2028		686,000		673,658
Total						26,729,542
Savings & Loans 0.00%
Washington Mutual Bank/Debt not acquired by JPMorgan(j)	6.875%	6/15/2011		1,250,000		–	(f)(i)
Semiconductors 0.82%
Entegris, Inc.†	4.75%	4/15/2029		1,024,000		982,488
Marvell Technology, Inc.	5.95%	9/15/2033		1,107,000		1,147,721
Micron Technology, Inc.	5.30%	1/15/2031		665,000		669,090
ON Semiconductor Corp.†	3.875%	9/1/2028		1,171,000		1,077,032
Qorvo, Inc.†	3.375%	4/1/2031		1,324,000		1,139,850

26 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Semiconductors (continued)
Qorvo, Inc.	4.375%	10/15/2029	$	1,083,000	$	1,016,085
SK Hynix, Inc. (South Korea)†(d)	5.50%	1/16/2029		1,398,000		1,395,183
SK Hynix, Inc. (South Korea)(d)	6.50%	1/17/2033		1,564,000		1,667,598
Total						9,095,047
Shipbuilding 0.17%
Huntington Ingalls Industries, Inc.	4.20%	5/1/2030		2,060,000		1,933,172
Software 1.81%
AthenaHealth Group, Inc.†	6.50%	2/15/2030		1,929,000		1,766,296
Cloud Software Group, Inc.†	6.50%	3/31/2029		2,910,000		2,763,893
Cloud Software Group, Inc.†	9.00%	9/30/2029		3,442,000		3,304,568
Constellation Software, Inc. (Canada)†(d)	5.461%	2/16/2034		712,000		716,993
Intuit, Inc.	5.50%	9/15/2053		1,062,000		1,103,235
MSCI, Inc.†	3.25%	8/15/2033		1,483,000		1,223,153
MSCI, Inc.†	3.875%	2/15/2031		3,447,000		3,076,783
MSCI, Inc.†	4.00%	11/15/2029		1,449,000		1,340,957
ROBLOX Corp.†	3.875%	5/1/2030		1,928,000		1,699,923
Roper Technologies, Inc.	1.75%	2/15/2031		960,000		773,308
Twilio, Inc.	3.625%	3/15/2029		757,000		681,582
Twilio, Inc.	3.875%	3/15/2031		719,000		628,334
Workday, Inc.	3.80%	4/1/2032		1,079,000		983,061
Total						20,062,086
Telecommunications 1.92%
Altice France SA (France)†(d)	5.50%	10/15/2029		1,383,000		940,147
Altice France SA (France)†(d)	8.125%	2/1/2027		2,251,000		1,761,494
Connect Finco SARL/Connect U.S. Finco LLC (Luxembourg)†(d)	6.75%	10/1/2026		1,264,000		1,239,927
Frontier Communications Holdings LLC†	5.875%	10/15/2027		2,402,000		2,327,361
Frontier Communications Holdings LLC†	6.00%	1/15/2030		61,000		51,736
Frontier Communications Holdings LLC†	6.75%	5/1/2029		3,016,000		2,691,131
Frontier Communications Holdings LLC†	8.75%	5/15/2030		2,295,000		2,350,327
Hughes Satellite Systems Corp.	5.25%	8/1/2026		1,834,000		1,527,864
Level 3 Financing, Inc.†	11.00%	11/15/2029		734,326		764,617
Lumen Technologies, Inc.†	4.125%	4/15/2029		372,762		236,704
Lumen Technologies, Inc.†	4.125%	4/15/2030		372,761		232,976
Sprint Capital Corp.	6.875%	11/15/2028		2,527,000		2,694,874
Vmed O2 U.K. Financing I PLC (United Kingdom)†(d)	4.25%	1/31/2031		3,935,000		3,335,313
Vmed O2 U.K. Financing I PLC (United Kingdom)†(d)	4.75%	7/15/2031		1,253,000		1,081,162
Total						21,235,633

See Notes to Schedule of Investments. 27

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
Transportation 0.31%
Central Japan Railway Co. (Japan)†(d)	4.25%		11/24/2045	$	1,524,000	$	1,308,173
Rand Parent LLC†	8.50%		2/15/2030		1,099,000		1,089,906
XPO, Inc.†	7.125%		2/1/2032		961,000		989,971
Total							3,388,050
Trucking & Leasing 0.16%
Fortress Transportation & Infrastructure Investors LLC†	5.50%		5/1/2028		1,770,000		1,716,898
Total Corporate Bonds (cost $780,406,659)							771,909,600
FLOATING RATE LOANS(k) 4.14%
Aerospace/Defense 0.18%
Alloy Finco Ltd. 2020 USD Term Loan B2 (Jersey)(d)	12.072% (3 mo. USD Term SOFR + 6.50%	)	12/6/2024		656,228		655,407
Alloy Finco Ltd. USD Holdco PIK Term Loan 13.50% (Jersey)(d)	0.50%		3/6/2025		1,570,535		1,335,936
Bleriot U.S. Bidco, Inc. 2023 Term Loan B	–	(l)	10/31/2028		1,832		1,839
Total							1,993,182
Automotive 0.10%
DexKo Global, Inc. 2021 USD Term Loan B	9.321% (3 mo. USD Term SOFR + 3.75%	)	10/4/2028		1,142,987		1,133,700
Beverages 0.10%
Triton Water Holdings, Inc. Term Loan	8.562% (3 mo. USD Term SOFR + 3.25%	)	3/31/2028		1,104,162		1,093,954
Building Materials 0.33%
ACProducts, Inc. 2021 Term Loan B	9.814% (3 mo. USD Term SOFR + 4.25%	)	5/17/2028		334,515		306,187
CP Atlas Buyer, Inc. 2021 Term Loan B	9.18% (1 mo. USD Term SOFR + 3.75%	)	11/23/2027		891,371		882,341
MI Windows and Doors LLC 2024 Term Loan B2	–	(l)	3/21/2031		480,000		482,851
Quikrete Holdings, Inc. 2024 Term Loan B	–	(l)	3/25/2031		1,007,000		1,008,682
Quikrete Holdings, Inc. 2024 Term Loan B1	–	(l)	3/19/2029		1,007,000		1,008,662
Total							3,688,723
Chemicals 0.10%
Iris Holding, Inc. Term Loan	10.163% (3 mo. USD Term SOFR + 4.75%	)	6/28/2028		1,122,453		1,075,680

28 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
Construction & Engineering 0.10%
Brand Industrial Services, Inc. 2023 Term Loan B	10.806% (3 mo. USD Term SOFR + 5.50%	)	8/1/2030	$	1,065,469	$	1,071,366
Consumer Non-Durables 0.08%
Anastasia Parent LLC 2018 Term Loan B	9.321% (3 mo. USD Term SOFR + 3.75%	)	8/11/2025		1,212,006		888,013
Diversified Capital Goods 0.11%
CeramTec AcquiCo GmbH 2022 EUR Term Loan B	7.452% (3 mo. EURIBOR + 3.50%	)	3/16/2029	EUR	1,162,111		1,241,206
Diversified Financial Services 0.15%
Jane Street Group LLC 2024 Term Loan B	7.942% (1 mo. USD Term SOFR + 2.50%	)	1/26/2028	$	1,695,619		1,698,374
Electric 0.00%
Helix Gen Funding LLC 2023 Term Loan	10.059% (3 mo. USD Term SOFR + 4.75%	)	12/31/2027		353		356
Electric: Generation 0.02%
Astoria Energy LLC 2020 Term Loan B	8.942% (3 mo. USD Term SOFR + 3.50%	)	12/10/2027		25,475		25,555
Frontera Generation Holdings LLC 2021 2nd Lien Term Loan	7.064% (3 mo. USD Term SOFR + 1.50%	)	7/28/2028		129,376		78,919
Frontera Generation Holdings LLC 2021 Term Loan	18.564% (3 mo. USD Term SOFR + 13.00%	)	7/28/2026		133,293		156,453
Total							260,927
Entertainment 0.15%
Motion Finco SARL 2024 USD Term Loan B (Luxembourg)(d)	9.071% (3 mo. USD Term SOFR + 3.50%	)	11/12/2029		1,700,000		1,699,363
Gas Distribution 0.10%
Freeport LNG Investments LLLP Term Loan B	9.079% (3 mo. USD Term SOFR + 3.50%	)	12/21/2028		1,139,961		1,133,680

See Notes to Schedule of Investments. 29

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
Health Care Products 0.20%
Bausch & Lomb Corp. Term Loan (Canada)(d)	8.677% (1 mo. USD Term SOFR + 3.25%	)	5/10/2027	$	2,260,940	$	2,240,026
Health Care Services 0.06%
Pacific Dental Services LLC 2024 Term Loan B	–	(l)	3/7/2031		652,022		652,974
Healthcare 0.20%
Athenahealth Group, Inc. 2022 Term Loan B	8.58% (1 mo. USD Term SOFR + 3.25%	)	2/15/2029		1,069,490		1,062,057
eResearchTechnology, Inc. 2020 1st Lien Term Loan	9.829% (1 mo. USD Term SOFR + 4.50%	)	2/4/2027		1,138,955		1,143,682
Total							2,205,739
Information Technology 0.26%
Cloud Software Group, Inc. 2022 USD Term Loan B	9.909% (2 mo. USD Term SOFR + 4.50% (3 mo. USD Term SOFR + 4.50%	) )	3/30/2029		1,171,888		1,167,886
McAfee LLC 2022 USD Term Loan B	9.176% (1 mo. USD Term SOFR + 3.75%	)	3/1/2029		1,655,787		1,656,598
Total							2,824,484
Machinery: Diversified 0.21%
LSF12 Badger Bidco LLC Term Loan B	11.33% (1 mo. USD Term SOFR + 6.00%	)	8/30/2030		1,143,146		1,149,582
SPX Flow, Inc. 2022 Term Loan	9.927% (1 mo. USD Term SOFR + 4.50%	)	4/5/2029		1,147,400		1,153,556
Total							2,303,138
Manufacturing 0.02%
II-VI, Inc. 2022 Term Loan B	8.195% (1 mo. USD Term SOFR + 2.75%	)	7/2/2029		211,643		212,331
Media 0.34%
Cengage Learning, Inc. 2024 Term Loan B	9.579% (3 mo. USD Term SOFR + 4.25%	)	3/15/2031		1,053,000		1,053,163
Sinclair Television Group, Inc. 2021 Term Loan B3	8.445% (1 mo. USD Term SOFR + 3.00%	)	4/1/2028		1,225,426		988,514

30 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
Media (continued)
Sinclair Television Group, Inc. 2022 Term Loan B4	9.18% (1 mo. USD Term SOFR + 3.75%	)	4/21/2029	$	66,256	$	53,198
Virgin Media Bristol LLC 2023 USD Term Loan Y	8.79% (6 mo. USD Term SOFR + 3.25%	)	3/31/2031		1,703,000		1,680,052
Total							3,774,927
Metal Fabricate/Hardware 0.19%
Crosby U.S. Acquisition Corp. 2024 Term Loan B	9.327% (1 mo. USD Term SOFR + 4.00%	)	8/16/2029		1,107,838		1,115,338
Tank Holding Corp. 2022 Term Loan	11.177% (1 mo. USD Term SOFR + 5.75%	)	3/31/2028		1,032,313		1,022,155
Total							2,137,493
Oil & Gas 0.10%
Parkway Generation LLC Term Loan B	10.324% (3 mo. USD Term SOFR + 4.75%	)	2/18/2029		1,008,728		1,007,719
Parkway Generation LLC Term Loan C	10.324% (3 mo. USD Term SOFR + 4.75%	)	2/18/2029		134,002		133,868
Total							1,141,587
Personal & Household Products 0.00%
FGI Operating Co. LLC Exit Term Loan	–	(l)	5/16/2024		77,716		9,753	(m)
Real Estate 0.03%
Cushman & Wakefield U.S. Borrower LLC 2023 Term Loan B	9.33% (1 mo. USD Term SOFR + 4.00%	)	1/31/2030		260,632		261,609
Retail 0.29%
IRB Holding Corp. 2024 Term Loan B	8.177% (1 mo. USD Term SOFR + 2.75%	)	12/15/2027		1,492,000		1,494,104
Restoration Hardware, Inc. Term Loan B	7.942% (1 mo. USD Term SOFR + 2.50%	)	10/20/2028		1,787,900		1,747,252
Total							3,241,356
Semiconductors 0.13%
MKS Instruments, Inc. 2023 USD Term Loan B	7.823% (1 mo. USD Term SOFR + 2.50%	)	8/17/2029		1,389,747		1,392,499

See Notes to Schedule of Investments. 31

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
Service 0.10%
Brown Group Holding LLC 2022 Incremental Term Loan B2	8.327% (1 mo. USD Term SOFR + 3.00%	)	7/2/2029	$	1,135,065	$	1,136,416
Software 0.34%
Applied Systems, Inc. 2024 1st Lien Term Loan	8.809% (3 mo. USD Term SOFR + 3.50%	)	2/24/2031		1,144,399		1,152,575
Banff Merger Sub, Inc. 2023 USD Term Loan	9.58% (1 mo. USD Term SOFR + 4.25%	)	12/29/2028		1,090,807		1,099,102
Project Alpha Intermediate Holding, Inc. 2023 1st Lien Term Loan B	10.063% (3 mo. USD Term SOFR + 4.75%	)	10/28/2030		1,463,000		1,472,649
Total							3,724,326
Utilities 0.15%
Calpine Corp. 2024 Term Loan B10	–	(l)	1/31/2031		278,127		276,750
Calpine Corp. Term Loan B9	–	(l)	1/31/2031		1,373,873		1,367,718
Total							1,644,468
Total Floating Rate Loans (cost $45,963,308)							45,881,650
FOREIGN GOVERNMENT OBLIGATIONS 5.13%
Angola 0.25%
Angola Government International Bonds(d)	9.375%		5/8/2048		3,148,000		2,724,345
Argentina 0.27%
Argentina Republic Government International Bonds(d)	0.75%	(n)	7/9/2030		5,764,869		3,034,051
Benin 0.06%
Benin Government International Bonds†(d)	7.96%		2/13/2038		635,000		619,522
Brazil 0.19%
Brazil Notas do Tesouro Nacional	10.00%		1/1/2029	BRL	11,000,000		2,145,531
Colombia 0.15%
Colombia Government International Bonds(d)	8.00%		4/20/2033	$	1,575,000		1,665,532
Costa Rica 0.25%
Costa Rica Government International Bonds†(d)	7.158%		3/12/2045		2,596,000		2,724,443
Dominican Republic 0.43%
Dominican Republic International Bonds†(d)	6.00%		2/22/2033		4,891,000		4,761,308

32 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
Ecuador 0.20%
Ecuador Government International Bonds†(d)	6.00%	(n)	7/31/2030	$	3,304,551	$	2,249,202
Egypt 0.12%
Egypt Government International Bonds(d)	8.50%		1/31/2047		239,000		190,211
Egypt Government International Bonds(d)	8.50%		1/31/2047		1,419,000		1,129,325
Total							1,319,536
El Salvador 0.33%
El Salvador Government International Bonds(d)	8.625%		2/28/2029		4,234,000		3,693,162
Gabon 0.12%
Gabon Government International Bonds(d)	6.95%		6/16/2025		444,000		436,341
Gabon Government International Bonds(d)	6.95%		6/16/2025		954,000		937,543
Total							1,373,884
Kenya 0.20%
Republic of Kenya Government International Bonds(d)	7.00%		5/22/2027		1,067,000		1,042,451
Republic of Kenya Government International Bonds†(d)	9.75%		2/16/2031		1,141,000		1,171,664
Total							2,214,115
Mexico 0.34%
Mexico Bonos	7.50%		5/26/2033	MXN	70,000,000		3,751,860
Montenegro 0.08%
Montenegro Government International Bonds†(d)	7.25%		3/12/2031	$	923,000		940,403
Nigeria 0.35%
Nigeria Government International Bonds(d)	7.143%		2/23/2030		3,077,000		2,802,144
Nigeria Government International Bonds(d)	7.625%		11/28/2047		1,421,000		1,107,513
Total							3,909,657
Panama 0.19%
Panama Government International Bonds(d)	6.40%		2/14/2035		785,000		743,261
Panama Government International Bonds(d)	7.50%		3/1/2031		451,000		468,608
Panama Government International Bonds(d)	9.375%		4/1/2029		793,000		889,184
Total							2,101,053
Paraguay 0.06%
Paraguay Government International Bonds†	7.90%		2/9/2031	PYG	4,329,000,000		608,601
Senegal 0.34%
Senegal Government International Bonds†(d)	6.25%		5/23/2033	$	4,458,000		3,810,935

See Notes to Schedule of Investments. 33

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount‡		Fair Value
Serbia 0.20%
Serbia International Bonds†(d)	6.25%	5/26/2028	$	2,144,000	$	2,192,279
Sri Lanka 0.13%
Sri Lanka Government International Bonds†(d)(j)	5.875%	7/25/2022		2,340,000		1,389,068
Turkey 0.63%
Istanbul Metropolitan Municipality†(d)	10.50%	12/6/2028		1,074,000		1,151,919
Turkiye Government International Bonds(d)	5.125%	2/17/2028		4,668,000		4,440,267
Turkiye Government International Bonds(d)	9.375%	3/14/2029		1,300,000		1,416,220
Total						7,008,406
Uruguay 0.21%
Uruguay Government International Bonds	9.75%	7/20/2033	UYU	82,483,888		2,312,031
Venezuela 0.03%
Venezuela Government International Bonds(b)(d)(j)	11.75%	10/21/2026	$	1,826,400		338,849
Venezuela Government International Bonds(d)(j)	12.75%	8/23/2022		237,800		41,603
Total						380,452
Total Foreign Government Obligations (cost $54,543,842)						56,929,376
GOVERNMENT SPONSORED ENTERPRISES PASS-THROUGHS 9.47%
Government National Mortgage Association(o)	2.50%	TBA		1,732,000		1,476,463
Government National Mortgage Association(o)	3.00%	TBA		7,324,000		6,463,922
Government National Mortgage Association(o)	3.50%	TBA		3,025,000		2,754,742
Government National Mortgage Association(o)	4.00%	TBA		5,624,000		5,264,337
Government National Mortgage Association(o)	4.50%	TBA		4,107,000		3,946,766
Government National Mortgage Association(o)	5.00%	TBA		5,567,000		5,473,181
Government National Mortgage Association(o)	5.50%	TBA		5,471,000		5,464,392
Government National Mortgage Association(o)	6.00%	TBA		5,386,000		5,429,498
Government National Mortgage Association(o)	6.50%	TBA		10,799,000		10,972,036
Government National Mortgage Association(o)	7.00%	TBA		5,324,000		5,436,260
Uniform Mortgage-Backed Security(o)	2.50%	TBA		1,481,000		1,225,228
Uniform Mortgage-Backed Security(o)	4.00%	TBA		1,525,000		1,412,986
Uniform Mortgage-Backed Security(o)	4.50%	TBA		3,697,000		3,521,606
Uniform Mortgage-Backed Security(o)	5.50%	TBA		13,085,000		13,070,382
Uniform Mortgage-Backed Security(o)	6.00%	TBA		15,087,000		15,270,893
Uniform Mortgage-Backed Security(o)	6.50%	TBA		7,063,000		7,213,983
Uniform Mortgage-Backed Security(o)	7.00%	TBA		10,333,000		10,641,458
Total Government Sponsored Enterprises Pass-Throughs (cost $104,863,893)						105,038,133

34 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡			Fair Value
INVESTMENTS IN AFFILIATED UNDERLYING FUNDS 0.07%
Lord Abbett Private Credit Fund 1, LP(p)(q) (cost $746,854)				$	746,854	(r)	$	746,854
MUNICIPAL BONDS 0.40%
Government 0.10%
Foothill-Eastern Transportation Corridor Agency CA	4.094%		1/15/2049		1,292,000			1,089,973
Miscellaneous 0.21%
Dallas Convention Center Hotel Development Corp. TX	7.088%		1/1/2042		1,210,000			1,382,721
New York City Industrial Development Agency NY†	11.00%		3/1/2029		820,000			926,118
Total								2,308,839
Tax Revenue 0.09%
Memphis-Shelby County Industrial Development Board Tax Allocation TN(j)	7.00%		7/1/2045		1,415,000			1,063,094	(c)
Total Municipal Bonds (cost $5,236,009)								4,461,906
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES 6.78%
Bank Series 2024-5YR5 Class A3	5.702%		2/15/2029		1,150,000			1,179,535
BBCMS Mortgage Trust Series 2019-BWAY Class A†	6.396% (1 mo. USD Term SOFR + 1.07%	)#	11/15/2034		970,000			689,327
Benchmark Mortgage Trust Series 2024-V5 Class A3	5.805%		1/10/2057		1,210,000			1,247,063
Benchmark Mortgage Trust Series 2024-V6 Class A3(b)	5.926%		3/15/2029		2,500,000			2,583,285
BHMS Mortgage Trust Series 2018-ATLS Class A†	6.872% (1 mo. USD Term SOFR + 1.55%	)#	7/15/2035		2,770,000			2,767,787
BLP Commercial Mortgage Trust Series 2024-IND2 Class A†	6.668% (1 mo. USD Term SOFR + 1.34%	)#	3/15/2041		2,920,000			2,925,109
BMO Mortgage Trust Series 2023-C5 Class A5	5.765%		6/15/2056		450,000			472,858
BX Commercial Mortgage Trust Series 2020-VIV4 Class A†	2.843%		3/9/2044		1,449,000			1,254,973
BX Commercial Mortgage Trust Series 2021-VOLT Class A†	6.14% (1 mo. USD Term SOFR + 0.81%	)#	9/15/2036		2,770,000			2,751,233
BX Commercial Mortgage Trust Series 2024-XL4 Class A†	6.767% (1 mo. USD Term SOFR + 1.44%	)#	2/15/2039		1,850,000			1,855,068

See Notes to Schedule of Investments. 35

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES (continued)
BX Commercial Mortgage Trust Series 2024-XL5 Class A†	6.692% (1 mo. USD Term SOFR + 1.39%	)#	3/15/2041	$	1,420,000	$	1,422,821
BX Trust Series 2021-ARIA Class A†	6.339% (1 mo. USD Term SOFR + 1.01%	)#	10/15/2036		500,000		495,416
BX Trust Series 2022-PSB Class A†	7.776% (1 mo. USD Term SOFR + 2.45%	)#	8/15/2039		1,784,051		1,797,420
CF Trust Series 2019-BOSS Class A1†	8.623% (1 mo. USD Term SOFR + 3.30%	)#	12/15/2024		1,340,000		1,314,089
Chase Home Lending Mortgage Trust Series 2024-1A2 Class A2†	6.50%	#(s)	1/25/2055		2,010,388		2,030,776
CIM Trust Series 2018-INV1 Class B1†	4.711%	#(s)	8/25/2048		435,017		409,382
CIM Trust Series 2020-J1 Class A2†	2.50%	#(s)	7/25/2050		437,563		357,749
CIM Trust Series 2021-J1 Class A1†	2.50%	#(s)	3/25/2051		447,213		360,454
Citigroup Mortgage Loan Trust, Inc. Series 2021-INV2 Class A3A†	2.50%	#(s)	5/25/2051		2,084,650		1,690,612
Citigroup Mortgage Loan Trust, Inc. Series 2022-INV1 Class A3B†	3.00%	#(s)	11/27/2051		3,001,292		2,520,060
CSMC Trust Series 2021-BPNY Class A†	9.155% (1 mo. USD Term SOFR + 3.83%	)#	8/15/2026		1,960,000		1,763,256
Federal Home Loan Mortgage Corp. STACR REMICS Notes Series 2022-HQA2 Class M1B†	9.32% (30 day USD SOFR Average + 4.00%	)#	7/25/2042		380,000		404,723
Federal Home Loan Mortgage Corp. STACR REMICS Notes Series 2023-DNA2 Class M1A†	7.42% (30 day USD SOFR Average + 2.10%	)#	4/25/2043		1,129,730		1,151,117
Federal Home Loan Mortgage Corp. STACR REMICS Notes Series 2023-DNA2 Class M1B†	8.57% (30 day USD SOFR Average + 3.25%	)#	4/25/2043		2,200,000		2,311,488
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2021-HQA3 Class M1†	6.17% (30 day USD SOFR Average + 0.85%	)#	9/25/2041		1,048,528		1,044,192
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2022-DNA2 Class M1B†	7.72% (30 day USD SOFR Average + 2.40%	)#	2/25/2042		800,000		815,630

36 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES (continued)
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2022-HQA3 Class M1A†	7.62% (30 day USD SOFR Average + 2.30%	)#	8/25/2042	$	1,407,796	$	1,438,581
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2022-HQA3 Class M1B†	8.87% (30 day USD SOFR Average + 3.55%	)#	8/25/2042		1,570,000		1,650,380
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2023-HQA3 Class M2†	8.67% (30 day USD SOFR Average + 3.35%	)#	11/25/2043		1,350,000		1,415,772
Federal National Mortgage Association Connecticut Avenue Securities Series 2022-R01 Class 1B2†	11.32% (30 day USD SOFR Average + 6.00%	)#	12/25/2041		1,100,000		1,160,534
Federal National Mortgage Association Connecticut Avenue Securities Series 2022-R03 Class 1M2†	8.82% (30 day USD SOFR Average + 3.50%	)#	3/25/2042		650,000		682,306
Federal National Mortgage Association Connecticut Avenue Securities Series 2023-R03 Class 2M2†	9.22% (30 day USD SOFR Average + 3.90%	)#	4/25/2043		900,000		960,999
Federal National Mortgage Association Connecticut Avenue Securities Series 2023-R06 Class 1M2†	8.02% (30 day USD SOFR Average + 2.70%	)#	7/25/2043		500,000		518,399
Federal National Mortgage Association Connecticut Avenue Securities Series 2024-R01 Class 1M2†	7.12% (30 day USD SOFR Average + 1.80%	)#	1/25/2044		500,000		503,380
Federal National Mortgage Association Connecticut Avenue Securities Trust Series 2019-R05 Class 1B1†	9.535% (30 day USD SOFR Average + 4.21%	)#	7/25/2039		904,658		942,883
Federal National Mortgage Association Connecticut Avenue Securities Trust Series 2022-R02 Class 2M1†	6.52% (30 day USD SOFR Average + 1.20%	)#	1/25/2042		573,978		575,097
Federal National Mortgage Association Connecticut Avenue Securities Trust Series 2022-R08 Class 1M1†	7.87% (30 day USD SOFR Average + 2.55%	)#	7/25/2042		977,063		1,003,473

See Notes to Schedule of Investments. 37

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES (continued)
Federal National Mortgage Association Connecticut Avenue Securities Trust Series 2023-R01 Class 1M1†	7.721% (30 day USD SOFR Average + 2.40%	)#	12/25/2042	$	2,281,445	$	2,344,243
Flagstar Mortgage Trust Series 2021-8INV Class A3†	2.50%	#(s)	9/25/2051		523,584		422,009
Great Wolf Trust Series 2024-WOLF Class A†	6.842% (1 mo. USD Term SOFR + 1.54%	)#	3/15/2039		1,370,000		1,374,351
GS Mortgage Securities Corp. Trust Series 2021-PJ1 Class A2†	2.50%	#(s)	6/25/2051		952,577		767,778
GS Mortgage Securities Corp. Trust Series 2021-PJ5 Class A2†	2.50%	#(s)	10/25/2051		321,968		259,507
GS Mortgage Securities Corp. Trust Series 2023-FUN Class A†	7.417% (1 mo. USD Term SOFR + 2.09%	)#	3/15/2028		2,090,000		2,100,166
GS Mortgage-Backed Securities Corp. Trust Series 2021-PJ6 Class A8†	2.50%	#(s)	11/25/2051		733,585		639,783
GS Mortgage-Backed Securities Corp. Trust Series 2022-PJ4 Class A34†	2.50%	#(s)	9/25/2052		1,324,690		1,056,155
GS Mortgage-Backed Securities Trust Series 2021-PJ6 Class A2†	2.50%	#(s)	11/25/2051		1,103,227		889,202
GS Mortgage-Backed Securities Trust Series 2021-PJ7 Class A2†	2.50%	#(s)	1/25/2052		707,252		570,046
Hilton Orlando Trust Series 2018-ORL Class A†	6.392% (1 mo. USD Term SOFR + 1.07%	)#	12/15/2034		747,000		746,682
HPLY Trust Series 2019-HIT Class A†	6.436% (1 mo. USD Term SOFR + 1.11%	)#	11/15/2036		1,041,979		1,039,614
JP Morgan Mortgage Trust Series 2020-7 Class A3†	3.00%	#(s)	1/25/2051		449,508		382,228
JP Morgan Mortgage Trust Series 2021-12 Class A3†	2.50%	#(s)	2/25/2052		558,922		450,491
JP Morgan Mortgage Trust Series 2021-7 Class A3†	2.50%	#(s)	11/25/2051		360,886		290,875
JP Morgan Mortgage Trust Series 2021-INV5 Class A2†	3.00%	#(s)	12/25/2051		407,484		342,147
JP Morgan Mortgage Trust Series 2021-INV8 Class A2†	3.00%	#(s)	5/25/2052		1,977,089		1,660,079
JP Morgan Mortgage Trust Series 2022-4 Class A2A†	3.00%	#(s)	10/25/2052		882,239		740,779

38 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount‡		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES (continued)
JPMorgan Chase Commercial Mortgage Securities Trust Series 2021-BOLT Class D†	12.141% (1 mo. USD Term SOFR + 6.81%	)#	8/15/2033	$	2,110,000	$	1,299,195	(c)
Life Mortgage Trust Series 2022-BMR2 Class A1†	6.621% (1 mo. USD Term SOFR + 1.30%	)#	5/15/2039		1,830,000		1,816,040
NRTH Mortgage Trust Series 2024-PARK Class A†	6.941% (1 mo. USD Term SOFR + 1.64%	)#	3/15/2041		1,770,000		1,775,266
SHOW Trust Series 2022-BIZ Class A†	8.302% (1 mo. USD Term SOFR + 2.98%	)#	1/15/2027		3,850,000		3,597,474
SMRT Commercial Mortgage Trust Series 2022-MINI Class A†	6.326% (1 mo. USD Term SOFR + 1.00%	)#	1/15/2039		750,000		745,906
WB Commercial Mortgage Trust Series 2024-HQ Class A†	6.134%	#(s)	3/15/2040		1,350,000		1,359,093
Total Non-Agency Commercial Mortgage-Backed Securities (cost $76,442,461)							75,136,336
	Dividend          Rate				Shares
PREFERRED STOCKS 0.15%
Automobiles 0.05%
Dr Ing hc F Porsche AG†(e)	2.31%				5,945		591,862	(c)
Transportation Infrastructure 0.10%
ACBL Holdings Corp.	Zero Coupon				16,904		1,098,760
Total Preferred Stocks (cost $1,019,592)							1,690,622
Total Long-Term Investments (cost $1,209,326,694)							1,209,703,804
					Principal Amount‡
SHORT-TERM INVESTMENTS 0.52%
REPURCHASE AGREEMENTS 0.39%
Repurchase Agreement dated 3/28/2024, 2.800%% due 4/1/2024 with Fixed Income Clearing Corp. collateralized by $4,318,600 of U.S. Treasury Inflation Indexed Bond at 2.125% due 2/15/2054; value: $4,383,477; proceeds: $4,298,766 (cost $4,297,429)				$	4,297,429		4,297,429

See Notes to Schedule of Investments. 39

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
MONEY MARKET FUNDS 0.12%
Fidelity Government Portfolio(t) (cost $1,317,407)		1,317,407	$	1,317,407
TIME DEPOSITS 0.01%
CitiBank N.A.(t) (cost $146,379)		146,379		146,379
Total Short-Term Investments (cost $5,761,215)				5,761,215
Total Investments in Securities 109.62% (cost $1,215,087,909)				1,215,465,019
Other Assets and Liabilities – Net(u) (9.62)%				(106,691,688	)
Net Assets 100.00%			$	1,108,773,331

BRL	Brazilian Real.
EUR	Euro.
GBP	British Pound.
MXN	Mexican Peso.
PYG	Paraguay Guarani.
UYU	Uruguayan Peso.
CMT	Constant Maturity Rate.
EURIBOR	Euro Interbank Offered Rate.
ICE	Intercontinental Exchange.
LIBOR	London Interbank Offered Rate.
PIK	Payment-in-kind.
REITS	Real Estate Investment Trusts.
REMICS	Real Estate Mortgage Investment Conduits.
SOFR	Secured Overnight Financing Rate.
STACR	Structured Agency Credit Risk.

‡	Principal Amount is denominated in U.S. dollars unless otherwise noted.
†	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 March 31, 2024, the total value of Rule 144A securities was $662,084,864, which represents 59.71% of net assets.
#	Variable rate security. The interest rate represents the rate in effect at March 31, 2024.
*	Non-income producing security.
(a)	Variable Rate is Fixed to Float: Rate remains fixed or at Zero Coupon until designated future date.
(b)	Securities purchased on a when-issued basis.
(c)	Level 3 Investment as described in Note 2(b) in the Notes to Schedule of Investments. Security valued utilizing third party pricing information without adjustment. Such valuations are based on unobservable inputs. A significant change in third party information could result in a significantly lower or higher value of such Level 3 investments.
(d)	Foreign security traded in U.S. dollars.
(e)	Investment in non-U.S. dollar denominated securities.
(f)	Level 3 Investment as described in Note 2(b) in the Notes to Schedule of Investments. Security fair valued by the Pricing Committee.
(g)	All or a portion of this security is temporarily on loan to unaffiliated broker/dealers.
(h)	Security is perpetual in nature and has no stated maturity.
(i)	Amount is less than $1.
(j)	Defaulted (non-income producing security).
(k)	Floating Rate Loans in which the Fund invests generally pay interest at rates which are periodically re-determined at a margin above the Secured Overnight Financing Rate (“SOFR”) or the prime rate offered by major U.S. banks. The rate(s) shown is the rate(s) in effect at March 31, 2024.
(l)	Interest Rate to be determined.
(m)	Level 3 Investment as described in Note 2(b) in the Notes to Schedule of Investments. Floating Rate Loan fair valued by the Pricing Committee.
(n)	Step Bond – Security with a predetermined schedule of interest rate changes.
(o)	To-be-announced (“TBA”). Security purchased on a forward commitment basis with an approximate principal and maturity date. Actual principal and maturity will be determined upon settlement when the specific mortgage pools are assigned.
(p)	Affiliated issuers (See Note 5).

40 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

(q)	Restricted securities (including private placement) – investments in securities not registered under the Securities Act of 1933 (excluding 144A issues). At March 31, 2024, the value of restricted securities (excluding 144A) issues amounted to $746,854 or 0.07% of net assets.
(r)	Principal amount represents partnership interest.
(s)	Interest rate is based on the weighted average interest rates of the underlying mortgages within the mortgage pool.
(t)	Security was purchased with the cash collateral from loaned securities.
(u)	Other Assets and Liabilities – Net include net unrealized appreciation/depreciation on forward foreign currency exchange contracts, futures contracts and swap contracts as follows:

Centrally Cleared Consumer Price Index (“CPI”) Swap Contracts at March 31, 2024:

Swap Counterparty	Payments to be Made By The Fund at Termination Date	Payments to be Received By The Fund at Termination Date	Termination Date	Notional Amount	Value/Unrealized Appreciation
Bank of America	2.544%	CPI Urban Consumer NSA	3/2/2052	$1,392,911		$	33,753	(1)
Bank of America	2.544%	CPI Urban Consumer NSA	3/2/2052	2,807,089			68,022
Total Unrealized Appreciation on Centrally Cleared CPI Swap Contracts						$	101,775

Centrally Cleared Consumer Price Index (“CPI”) Swap Contracts at March 31, 2024:

Swap Counterparty	Payments to be Made By The Fund at Termination Date	Payments to be Received By The Fund at Termination Date	Termination Date	Notional Amount	Value/Unrealized Depreciation
Bank of America	2.665%	CPI Urban Consumer NSA	10/23/2028	$10,000,000		$	(88,463	)
Bank of America	2.665%	CPI Urban Consumer NSA	5/12/2052	4,373,000			(62,802	)
Bank of America	2.748%	CPI Urban Consumer NSA	4/20/2052	6,000,000			(181,321	)
Total Unrealized Depreciation on Centrally Cleared CPI Swap Contracts						$	(332,586	)

NSA	Non-seasonally adjusted.
(1)	Unrealized appreciation on Centrally Cleared CPI Swap Contract is $27,420, which includes upfront payment of $6,333. Upfront payments paid (received) by Central Clearing Party are presented net of amortization.

Forward Foreign Currency Exchange Contracts at March 31, 2024:

Forward Foreign Currency Exchange Contracts	Transaction Type	Counterparty	Expiration Date	Foreign Currency	U.S. $ Cost on Origination Date		U.S. $ Current Value		Unrealized Appreciation
Australian dollar	Sell	State Street Bank and Trust	5/10/2024	1,970,000	$	1,293,612	$	1,285,115		$	8,497
Australian dollar	Sell	State Street Bank and Trust	5/10/2024	505,000		330,515		329,433			1,082
British pound	Sell	Morgan Stanley	5/17/2024	709,000		904,760		895,081			9,679
British pound	Sell	State Street Bank and Trust	5/17/2024	152,000		194,593		191,893			2,700
Canadian dollar	Sell	Bank of America	5/9/2024	1,083,000		803,476		799,964			3,512
Canadian dollar	Sell	Morgan Stanley	5/9/2024	738,000		548,797		545,128			3,669
Canadian dollar	Sell	State Street Bank and Trust	5/9/2024	749,000		556,175		553,253			2,922
Canadian dollar	Sell	State Street Bank and Trust	5/9/2024	450,000		333,800		332,395			1,405
Euro	Sell	Morgan Stanley	5/22/2024	2,964,000		3,214,226		3,203,943			10,283
Euro	Sell	State Street Bank and Trust	5/22/2024	553,000		597,768		597,767			1
Japanese yen	Sell	Morgan Stanley	5/16/2024	182,000,000		1,225,254		1,210,440			14,814
Total Unrealized Appreciation on Forward Foreign Currency Exchange Contracts										$	58,564

See Notes to Schedule of Investments. 41

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Forward Foreign Currency Exchange Contracts	Transaction Type	Counterparty	Expiration Date	Foreign Currency	U.S. $ Cost on Origination Date		U.S. $ Current Value		Unrealized Depreciation
Australian dollar	Buy	State Street Bank and Trust	5/10/2024	780,000	$	512,250	$	508,827		$	(3,423	)
Australian dollar	Buy	State Street Bank and Trust	5/10/2024	889,000		581,541		579,932			(1,609	)
British pound	Buy	Morgan Stanley	5/17/2024	217,000		274,780		273,953			(827	)
British pound	Buy	Morgan Stanley	5/17/2024	124,000		157,415		156,544			(871	)
Euro	Buy	Morgan Stanley	5/22/2024	182,000		197,280		196,733			(547	)
Euro	Buy	Morgan Stanley	5/22/2024	202,000		221,341		218,352			(2,989	)
Australian dollar	Sell	State Street Bank and Trust	5/10/2024	400,000		260,905		260,937			(32	)
Australian dollar	Sell	State Street Bank and Trust	5/10/2024	439,000		286,170		286,378			(208	)
British pound	Sell	Morgan Stanley	5/17/2024	3,138,000		3,961,259		3,961,584			(325	)
Canadian dollar	Sell	Morgan Stanley	5/9/2024	256,000		188,572		189,096			(524	)
Canadian dollar	Sell	Morgan Stanley	5/9/2024	433,000		318,991		319,838			(847	)
Total Unrealized Depreciation on Forward Foreign Currency Exchange Contracts										$	(12,202	)

Futures Contracts at March 31, 2024:

Type	Expiration	Contracts	Position	Notional Amount			Notional Value			Unrealized Appreciation
U.S. 5-Year Treasury Note	June 2024	186	Long	$19,883,538			$19,904,906					$21,368
Type	Expiration	Contracts	Position	Notional Amount			Notional Value			Unrealized Depreciation
U.S. 10-Year Treasury Note	June 2024	155	Long	$	17,282,471		$	17,173,516			$	(108,955	)
U.S. 2-Year Treasury Note	June 2024	372	Long		76,279,683			76,068,188				(211,495	)
U.S. Long Bond	June 2024	267	Short		(31,498,928	)		(32,156,812	)			(657,884	)
U.S. Ultra Treasury Bond	June 2024	105	Short		(13,225,541	)		(13,545,000	)			(319,459	)
Total Unrealized Depreciation on Futures Contracts											$	(1,297,793	)

42 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

The following is a summary of the inputs used as of March 31, 2024 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2			Level 3			Total
Long-Term Investments
Asset-Backed Securities
Other	$	–	$	43,547,512		$	1,157,128		$	44,704,640
Remaining Industries		–		18,465,410			–			18,465,410
Common Stocks
Automobile Components		–		737,767			–			737,767
Electric-Generation		–		4,736			–			4,736
Entertainment		2,883,893		1,058,553			–			3,942,446
Hotels, Restaurants & Leisure		4,370,960		1,047,234			–			5,418,194
Miscellaneous Financials		–		–			441,019			441,019
Personal Care Products		–		675,337			–			675,337
Specialty Retail		3,015,275		69,370			–			3,084,645
Textiles, Apparel & Luxury Goods		3,525,349		1,671,480			–			5,196,829
Transportation Infrastructure		–		162,096			–			162,096
Remaining Industries		65,076,208		–			–			65,076,208
Corporate Bonds
Banks		–		60,623,212			–	(3)		60,623,212
Mining		–		20,353,980			–	(4)		20,353,980
Savings & Loans		–		–			–	(3)		–	(3)
Remaining Industries		–		690,932,408			–			690,932,408
Floating Rate Loans					��
Personal & Household Products		–		–			9,753			9,753
Remaining Industries		–		45,871,897			–			45,871,897
Foreign Government Obligations		–		56,929,376			–			56,929,376
Government Sponsored Enterprises Pass-Throughs		–		105,038,133			–			105,038,133
Investments in Affiliated Underlying Funds		746,854		–			–			746,854
Municipal Bonds
Tax Revenue		–		–			1,063,094			1,063,094
Remaining Industries		–		3,398,812			–			3,398,812
Non-Agency Commercial Mortgage-Backed Securities		–		73,837,141			1,299,195			75,136,336
Preferred Stocks		–		1,098,760			591,862			1,690,622
Short-Term Investments
Repurchase Agreements		–		4,297,429			–			4,297,429
Money Market Funds		1,317,407		–			–			1,317,407
Time Deposits		–		146,379			–			146,379
Total	$	80,935,946	$	1,129,967,022		$	4,562,051		$	1,215,465,019

See Notes to Schedule of Investments. 43

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SERIES FUND, INC. – BOND DEBENTURE PORTFOLIO March 31, 2024

Investment Type(2)	Level 1			Level 2			Level 3		Total
Other Financial Instruments
Centrally Cleared CPI Swap Contracts
Assets	$	–		$	101,775		$	–	$	101,775
Liabilities		–			(332,586	)		–		(332,586	)
Forward Foreign Currency Exchange Contracts
Assets		–			58,564			–		58,564
Liabilities		–			(12,202	)		–		(12,202	)
Futures Contracts
Assets		21,368			–			–		21,368
Liabilities		(1,297,793	)		–			–		(1,297,793	)
Total	$	(1,276,425	)	$	(184,449	)	$	–	$	(1,460,874	)

(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. 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. When applicable, each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.
(3)	Amount is less than $1.
(4)	Includes securities with zero fair value.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets. Management has determined not to provide a reconciliation as the balance of Level 3 investments was not considered to be material to the Fund’s net assets at the beginning or end of the period.

44 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SERIES FUND, INC. - DEVELOPING GROWTH PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
LONG-TERM INVESTMENTS 97.28%
COMMON STOCKS 97.28%
Aerospace & Defense 3.16%
AeroVironment, Inc.*		9,800	$	1,502,144
Axon Enterprise, Inc.*		2,649		828,819
Total				2,330,963
Biotechnology 17.32%
Arcellx, Inc.*		19,742		1,373,056
Blueprint Medicines Corp.*		15,689		1,488,259
Bridgebio Pharma, Inc.*		32,290		998,407
Crinetics Pharmaceuticals, Inc.*		13,889		650,144
Cytokinetics, Inc.*		4,401		308,554
Immunovant, Inc.*		13,822		446,589
Janux Therapeutics, Inc.*(a)		7,388		278,158
Krystal Biotech, Inc.*		7,859		1,398,352
Madrigal Pharmaceuticals, Inc.*(a)		2,145		572,801
Natera, Inc.*		14,906		1,363,303
Nuvalent, Inc. Class A*		9,846		739,336
SpringWorks Therapeutics, Inc.*		26,369		1,297,882
Vaxcyte, Inc.*		8,426		575,580
Viking Therapeutics, Inc.*		7,633		625,906
Xenon Pharmaceuticals, Inc. (Canada)*(b)		15,429		664,218
Total				12,780,545
Building Products 4.51%
AAON, Inc.		12,943		1,140,278
AZEK Co., Inc.*		11,557		580,393
Trex Co., Inc.*		16,137		1,609,666
Total				3,330,337
Capital Markets 3.51%
Evercore, Inc. Class A		5,006		964,106
Hamilton Lane, Inc. Class A		6,280		708,133
Piper Sandler Cos.		4,619		916,825
Total				2,589,064
Commercial Services & Supplies 2.05%
MSA Safety, Inc.		3,970		768,552
Tetra Tech, Inc.		4,034		745,120
Total				1,513,672
Construction & Engineering 4.56%
Comfort Systems USA, Inc.		4,829		1,534,221
EMCOR Group, Inc.		3,113		1,090,173
Sterling Infrastructure, Inc.*		6,704		739,518
Total				3,363,912

See Notes to Schedule of Investments. 45

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. - DEVELOPING GROWTH PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Diversified Consumer Services 3.10%
Bright Horizons Family Solutions, Inc.*		8,026	$	909,828
Duolingo, Inc.*		6,235		1,375,316
Total				2,285,144
Electrical Equipment 1.82%
NEXTracker, Inc. Class A*		9,084		511,157
nVent Electric PLC (United Kingdom)(b)		11,074		834,979
Total				1,346,136
Financial Services 3.63%
AvidXchange Holdings, Inc.*		79,118		1,040,402
Remitly Global, Inc.*		42,032		871,743
StoneCo Ltd. Class A (Brazil)*(b)		45,957		763,346
Total				2,675,491
Food Products 1.57%
Freshpet, Inc.*		10,030		1,162,076
Ground Transportation 5.04%
Lyft, Inc. Class A*		72,753		1,407,771
Saia, Inc.*		2,570		1,503,450
XPO, Inc.*		6,610		806,618
Total				3,717,839
Health Care Equipment & Supplies 5.23%
Glaukos Corp.*		15,311		1,443,674
iRhythm Technologies, Inc.*		5,298		614,568
RxSight, Inc.*		27,701		1,428,818
TransMedics Group, Inc.*		4,993		369,182
Total				3,856,242
Hotels, Restaurants & Leisure 6.62%
Cava Group, Inc.*		26,311		1,843,085
MakeMyTrip Ltd. (India)*(b)		12,063		857,076
Shake Shack, Inc. Class A*		5,559		578,303
Wingstop, Inc.		4,385		1,606,664
Total				4,885,128
Information Technology Services 0.54%
Globant SA (Uruguay)*(b)		1,230		248,337
Wix.com Ltd. (Israel)*(b)		1,076		147,929
Total				396,266
Life Sciences Tools & Services 0.85%
Quanterix Corp.*		26,723		629,594
Machinery 1.32%
Crane Co.		7,209		974,152

46 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. - DEVELOPING GROWTH PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Personal Care Products 2.83%
BellRing Brands, Inc.*		9,670	$	570,820
elf Beauty, Inc.*		4,946		969,564
Oddity Tech Ltd. Class A (Israel)*(b)		12,673		550,642
Total				2,091,026
Pharmaceuticals 0.98%
Intra-Cellular Therapies, Inc.*		10,408		720,234
Professional Services 2.46%
Parsons Corp.*		11,707		971,096
Verra Mobility Corp.*		33,739		842,463
Total				1,813,559
Semiconductors & Semiconductor Equipment 6.09%
Astera Labs, Inc.*		9,909		735,149
Camtek Ltd. (Israel)*(b)		14,711		1,232,341
Credo Technology Group Holding Ltd.*		26,333		557,996
Onto Innovation, Inc.*		6,651		1,204,363
Rambus, Inc.*		12,388		765,702
Total				4,495,551
Software 17.60%
Agilysys, Inc.*		12,334		1,039,263
Appfolio, Inc. Class A*		5,718		1,410,859
CyberArk Software Ltd. (Israel)*(b)		5,482		1,456,184
Descartes Systems Group, Inc. (Canada)*(b)		9,373		857,911
DoubleVerify Holdings, Inc.*		11,113		390,733
Freshworks, Inc. Class A*		28,835		525,085
Gitlab, Inc. Class A*		16,734		975,927
Guidewire Software, Inc.*		6,697		781,607
JFrog Ltd. (Israel)*(b)		28,610		1,265,134
Monday.com Ltd. (Israel)*(b)		3,640		822,167
Samsara, Inc. Class A*		21,116		797,974
SentinelOne, Inc. Class A*		40,792		950,861
SPS Commerce, Inc.*		4,969		918,768
Varonis Systems, Inc.*		16,841		794,390
Total				12,986,863
Technology Hardware, Storage & Peripherals 1.56%
Super Micro Computer, Inc.*		1,139		1,150,424
Textiles, Apparel & Luxury Goods 0.93%
Deckers Outdoor Corp.*		726		683,355
Total Common Stocks (cost $54,284,399)				71,777,573

See Notes to Schedule of Investments. 47

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SERIES FUND, INC. - DEVELOPING GROWTH PORTFOLIO March 31, 2024

Investments	Principal Amount		Fair Value
SHORT-TERM INVESTMENTS 3.31%
REPURCHASE AGREEMENTS 2.42%
Repurchase Agreement dated 3/28/2024, 2.800% due 4/1/2024 with Fixed Income Clearing Corp. collateralized by $1,838,900 of U.S. Treasury Bond at 4.250% due 2/15/2054; value: $1,816,886; proceeds: $1,781,777 (cost $1,781,223)	$	1,781,223	$	1,781,223
	Shares
MONEY MARKET FUNDS 0.80%
Fidelity Government Portfolio(c) (cost $592,546)		592,546		592,546
TIME DEPOSITS 0.09%
CitiBank N.A.(c) (cost $65,838)		65,838		65,838
Total Short-Term Investments (cost $2,439,607)				2,439,607
Total Investments in Securities 100.59% (cost $56,724,006)				74,217,180
Other Assets and Liabilities – Net (0.59)%				(435,759	)
Net Assets 100.00%			$	73,781,421

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

The following is a summary of the inputs used as of March 31, 2024 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Long-Term Investments
Common Stocks	$	71,777,573	$	–	$	–	$	71,777,573
Short-Term Investments
Repurchase Agreements		–		1,781,223		–		1,781,223
Money Market Funds		592,546		–		–		592,546
Time Deposits		–		65,838		–		65,838
Total	$	72,370,119	$	1,847,061	$	–	$	74,217,180

(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. When applicable, each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.

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

48 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SERIES FUND, INC. - DIVIDEND GROWTH PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
LONG-TERM INVESTMENTS 99.10%
COMMON STOCKS 99.10%
Aerospace & Defense 1.39%
Northrop Grumman Corp.		5,485	$	2,625,450
Banks 2.37%
Bank of America Corp.		118,658		4,499,511
Beverages 2.13%
Coca-Cola Co.		50,202		3,071,358
Pernod Ricard SA(a)		5,998		970,981
Total				4,042,339
Biotechnology 2.76%
AbbVie, Inc.		28,714		5,228,819
Capital Markets 7.68%
Ameriprise Financial, Inc.		6,151		2,696,845
Charles Schwab Corp.		48,104		3,479,843
Evercore, Inc. Class A		6,424		1,237,198
Morgan Stanley		35,825		3,373,282
S&P Global, Inc.		8,858		3,768,636
Total				14,555,804
Chemicals 1.25%
Sherwin-Williams Co.		6,819		2,368,443
Construction Materials 2.21%
CRH PLC (Ireland)(b)		48,457		4,179,901
Consumer Staples Distribution & Retail 3.39%
Costco Wholesale Corp.		3,358		2,460,172
Walmart, Inc.		65,860		3,962,796
Total				6,422,968
Electric: Utilities 1.71%
NextEra Energy, Inc.		50,796		3,246,372
Electrical Equipment 1.51%
Eaton Corp. PLC		9,132		2,855,394
Financial Services 4.24%
Jack Henry & Associates, Inc.		7,984		1,387,060
Mastercard, Inc. Class A		13,813		6,651,927
Total				8,038,987

See Notes to Schedule of Investments. 49

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. - DIVIDEND GROWTH PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Ground Transportation 3.88%
Old Dominion Freight Line, Inc.		14,406	$	3,159,380
Union Pacific Corp.		17,047		4,192,368
Total				7,351,748
Health Care Equipment & Supplies 1.93%
Abbott Laboratories		32,132		3,652,123
Health Care Providers & Services 2.91%
UnitedHealth Group, Inc.		11,148		5,514,916
Hotels, Restaurants & Leisure 1.95%
McDonald’s Corp.		9,227		2,601,553
Starbucks Corp.		11,919		1,089,277
Total				3,690,830
Industrial Conglomerates 0.75%
Honeywell International, Inc.		6,936		1,423,614
Information Technology Services 2.14%
Accenture PLC Class A (Ireland)(b)		11,682		4,049,098
Insurance 3.82%
Allstate Corp.		9,238		1,598,266
Arthur J Gallagher & Co.		9,514		2,378,881
Chubb Ltd. (Switzerland)(b)		12,603		3,265,815
Total				7,242,962
Life Sciences Tools & Services 2.47%
Danaher Corp.		11,189		2,794,117
West Pharmaceutical Services, Inc.		4,773		1,888,724
Total				4,682,841
Machinery 2.20%
Parker-Hannifin Corp.		7,493		4,164,534
Media 1.86%
Comcast Corp. Class A		81,434		3,530,164
Metals & Mining 1.20%
Reliance, Inc.		6,815		2,277,437
Multi-Utilities 1.12%
CMS Energy Corp.		35,043		2,114,495

50 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. - DIVIDEND GROWTH PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Oil, Gas & Consumable Fuels 4.34%
Exxon Mobil Corp.		63,482	$	7,379,148
Marathon Petroleum Corp.		4,184		843,076
Total				8,222,224
Pharmaceuticals 3.69%
Eli Lilly & Co.		6,206		4,828,020
Zoetis, Inc.		12,776		2,161,827
Total				6,989,847
Semiconductors & Semiconductor Equipment 11.85%
Analog Devices, Inc.		6,234		1,233,023
Broadcom, Inc.		2,806		3,719,100
Lam Research Corp.		4,876		4,737,375
NVIDIA Corp.		11,212		10,130,715
Taiwan Semiconductor Manufacturing Co. Ltd. ADR		19,401		2,639,506
Total				22,459,719
Software 13.29%
Intuit, Inc.		2,531		1,645,150
Microsoft Corp.		40,919		17,215,442
Oracle Corp.		20,687		2,598,494
Roper Technologies, Inc.		6,651		3,730,147
Total				25,189,233
Specialty Retail 4.44%
Home Depot, Inc.		5,706		2,188,822
Lowe’s Cos., Inc.		9,997		2,546,536
TJX Cos., Inc.		36,272		3,678,706
Total				8,414,064
Technology Hardware, Storage & Peripherals 2.60%
Apple, Inc.		28,742		4,928,678
Textiles, Apparel & Luxury Goods 0.35%
NIKE, Inc. Class B		7,018		659,552
Tobacco 1.67%
Philip Morris International, Inc.		34,566		3,166,937
Total Common Stocks (cost $145,337,931)				187,789,004

See Notes to Schedule of Investments. 51

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SERIES FUND, INC. - DIVIDEND GROWTH PORTFOLIO March 31, 2024

Investments	Principal Amount		Fair Value
SHORT-TERM INVESTMENTS 1.12%
REPURCHASE AGREEMENTS 1.12%
Repurchase Agreement dated 3/28/2024, 2.800% due 4/1/2024 with Fixed Income Clearing Corp. collateralized by $2,126,500 of U.S. Treasury Bond at 2.125% due 2/15/2054; value: $2,158,446; proceeds: $2,116,763 (cost $2,116,104)	$	2,116,104	$	2,116,104
Total Investments in Securities 100.22% (cost $147,454,035)				189,905,108
Other Assets and Liabilities – Net (0.22)%				(410,305	)
Net Assets 100.00%			$	189,494,803

ADR American Depositary Receipt.

(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 March 31, 2024 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Long-Term Investments
Common Stocks
Beverages	$	3,071,358	$	970,981	$	–	$	4,042,339
Remaining Industries		183,746,665		–		–		183,746,665
Short-Term Investments
Repurchase Agreements		–		2,116,104		–		2,116,104
Total	$	186,818,023	$	3,087,085	$	–	$	189,905,108

(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. When applicable, each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.

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

52 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SERIES FUND, INC. - FUNDAMENTAL EQUITY PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
LONG-TERM INVESTMENTS 99.56%
COMMON STOCKS 99.56%
Aerospace & Defense 1.62%
Lockheed Martin Corp.		8,670	$	3,943,723
Banks 6.19%
JPMorgan Chase & Co.		49,190		9,852,757
Wells Fargo & Co.		89,610		5,193,796
Total				15,046,553
Beverages 1.53%
Carlsberg AS Class B(a)		27,240		3,730,384
Biotechnology 1.94%
AbbVie, Inc.		25,940		4,723,674
Building Products 3.46%
Allegion PLC (Ireland)(b)		29,000		3,906,590
Masco Corp.		57,050		4,500,104
Total				8,406,694
Capital Markets 7.62%
Ameriprise Financial, Inc.		7,360		3,226,918
Charles Schwab Corp.		84,740		6,130,092
KKR & Co., Inc.		53,510		5,382,036
Morgan Stanley		40,080		3,773,933
Total				18,512,979
Chemicals 1.63%
Avient Corp.		91,490		3,970,666
Construction & Engineering 1.73%
EMCOR Group, Inc.		11,990		4,198,898
Construction Materials 1.85%
CRH PLC (Ireland)(b)		52,070		4,491,558
Consumer Staples Distribution & Retail 3.68%
BJ’s Wholesale Club Holdings, Inc.*		49,170		3,719,711
Target Corp.		29,440		5,217,062
Total				8,936,773

See Notes to Schedule of Investments. 53

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. - FUNDAMENTAL EQUITY PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Electric: Utilities 2.73%
Entergy Corp.		29,040	$	3,068,947
FirstEnergy Corp.		92,540		3,573,895
Total				6,642,842
Electronic Equipment, Instruments & Components 3.81%
Littelfuse, Inc.		10,330		2,503,476
Mirion Technologies, Inc.*		326,460		3,711,850
TD SYNNEX Corp.		26,860		3,037,866
Total				9,253,192
Energy Equipment & Services 1.27%
Liberty Energy, Inc.		148,410		3,075,055
Financial Services 1.77%
Fiserv, Inc.*		26,890		4,297,560
Ground Transportation 1.22%
Landstar System, Inc.		15,420		2,972,359
Health Care Equipment & Supplies 1.52%
Becton Dickinson & Co.		14,930		3,694,429
Health Care Providers & Services 7.43%
Laboratory Corp. of America Holdings		19,840		4,334,246
Molina Healthcare, Inc.*		12,560		5,160,025
Tenet Healthcare Corp.*		43,880		4,612,227
UnitedHealth Group, Inc.		7,980		3,947,706
Total				18,054,204
Household Durables 1.01%
Helen of Troy Ltd.*		21,320		2,456,917
Industrial REITS 0.84%
Prologis, Inc.		15,750		2,050,965
Insurance 7.16%
Allstate Corp.		28,180		4,875,422
Arch Capital Group Ltd.*		39,230		3,626,421
Kemper Corp.		77,330		4,788,273
RenaissanceRe Holdings Ltd.		17,520		4,117,726
Total				17,407,842

54 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. - FUNDAMENTAL EQUITY PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Interactive Media & Services 2.63%
Alphabet, Inc. Class A*		42,380	$	6,396,413
Leisure Products 1.39%
Malibu Boats, Inc. Class A*		77,810		3,367,617
Life Sciences Tools & Services 1.27%
Thermo Fisher Scientific, Inc.		5,300		3,080,413
Machinery 3.44%
Crane Co.		27,100		3,662,023
Parker-Hannifin Corp.		8,450		4,696,425
Total				8,358,448
Media 1.49%
Comcast Corp. Class A		83,440		3,617,124
Metals & Mining 1.02%
Reliance, Inc.		7,410		2,476,274
Oil, Gas & Consumable Fuels 8.03%
Chesapeake Energy Corp.		52,260		4,642,256
Diamondback Energy, Inc.		21,730		4,306,234
Permian Resources Corp.		289,840		5,118,574
Shell PLC ADR		81,120		5,438,285
Total				19,505,349
Professional Services 1.44%
WNS Holdings Ltd. (India)*(b)		69,440		3,508,803
Real Estate Management & Development 1.53%
CBRE Group, Inc. Class A*		38,290		3,723,320
Residential REITS 0.84%
American Homes 4 Rent Class A		55,820		2,053,060
Semiconductors & Semiconductor Equipment 3.37%
Silicon Motion Technology Corp. ADR		47,600		3,662,344
Taiwan Semiconductor Manufacturing Co. Ltd. ADR		33,330		4,534,546
Total				8,196,890
Software 3.39%
Adobe, Inc.*		6,880		3,471,648
Microsoft Corp.		11,350		4,775,172
Total				8,246,820

See Notes to Schedule of Investments. 55

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. - FUNDAMENTAL EQUITY PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Specialty Retail 6.20%
Academy Sports & Outdoors, Inc.		45,940	$	3,102,788
AutoZone, Inc.*		810		2,552,836
Best Buy Co., Inc.		48,910		4,012,087
Lowe’s Cos., Inc.		14,090		3,589,146
Valvoline, Inc.*		40,890		1,822,467
Total				15,079,324
Technology Hardware, Storage & Peripherals 1.51%
NetApp, Inc.		34,900		3,663,453
Trading Companies & Distributors 2.00%
AerCap Holdings NV (Ireland)*(b)		55,840		4,853,054
Total Common Stocks (cost $199,412,552)				241,993,629
	Principal Amount
SHORT-TERM INVESTMENTS 0.48%
REPURCHASE AGREEMENTS 0.48%
Repurchase Agreement dated 3/28/2024, 2.800% due 4/1/2024 with Fixed Income Clearing Corp. collateralized by $1,197,900 of U.S. Treasury Bond at 4.250% due 2/15/2054; value: $1,183,560; proceeds: $1,160,620 (cost $1,160,259)	$	1,160,259		1,160,259
Total Investments in Securities 100.04% (cost $200,572,811)				243,153,888
Other Assets and Liabilities – Net (0.04)%				(98,321	)
Net Assets 100.00%			$	243,055,567

ADR	American Depositary Receipt.
REITS	Real Estate Investment Trusts.

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

56 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SERIES FUND, INC. - FUNDAMENTAL EQUITY PORTFOLIO March 31, 2024

The following is a summary of the inputs used as of March 31, 2024 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Long-Term Investments
Common Stocks
Beverages	$	–	$	3,730,384	$	–	$	3,730,384
Remaining Industries		238,263,245		–		–		238,263,245
Short-Term Investments
Repurchase Agreements		–		1,160,259		–		1,160,259
Total	$	238,263,245	$	4,890,643	$	–	$	243,153,888

(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. When applicable, each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.

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

See Notes to Schedule of Investments. 57

Schedule of Investments (unaudited)

LORD ABBETT SERIES FUND, INC. – GROWTH AND INCOME PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
LONG-TERM INVESTMENTS 100.26%
COMMON STOCKS 100.26%
Aerospace & Defense 1.68%
Lockheed Martin Corp.		19,430	$	8,838,124
Air Freight & Logistics 0.88%
Expeditors International of Washington, Inc.		37,990		4,618,444
Banks 6.54%
JPMorgan Chase & Co.		109,110		21,854,733
Wells Fargo & Co.		216,010		12,519,940
Total				34,374,673
Beverages 1.52%
Carlsberg AS Class B(a)		58,340		7,989,375
Biotechnology 2.24%
AbbVie, Inc.		64,600		11,763,660
Building Products 5.56%
Allegion PLC (Ireland)(b)		63,800		8,594,498
Builders FirstSource, Inc.*		50,180		10,465,039
Masco Corp.		129,160		10,188,141
Total				29,247,678
Capital Markets 7.66%
Ameriprise Financial, Inc.		15,970		7,001,887
Charles Schwab Corp.		185,450		13,415,453
KKR & Co., Inc.		116,370		11,704,495
Morgan Stanley		86,890		8,181,562
Total				40,303,397
Chemicals 1.46%
Dow, Inc.		132,340		7,666,456
Construction & Engineering 2.07%
EMCOR Group, Inc.		31,080		10,884,216
Construction Materials 1.92%
CRH PLC (Ireland)(b)		116,870		10,081,206
Consumer Finance 1.54%
American Express Co.		35,690		8,126,256

58 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – GROWTH AND INCOME PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Consumer Staples Distribution & Retail 3.73%
BJ’s Wholesale Club Holdings, Inc.*		106,940	$	8,090,011
Target Corp.		65,200		11,554,092
Total				19,644,103
Electric: Utilities 2.88%
Entergy Corp.		47,710		5,041,993
FirstEnergy Corp.		130,170		5,027,165
NextEra Energy, Inc.		79,540		5,083,402
Total				15,152,560
Electronic Equipment, Instruments & Components 2.28%
TD SYNNEX Corp.		58,770		6,646,887
Teledyne Technologies, Inc.*		12,420		5,332,154
Total				11,979,041
Energy Equipment & Services 1.95%
Schlumberger NV		187,370		10,269,750
Financial Services 1.99%
Fiserv, Inc.*		65,610		10,485,790
Health Care Equipment & Supplies 1.53%
Becton Dickinson & Co.		32,470		8,034,702
Health Care Providers & Services 7.30%
Laboratory Corp. of America Holdings		43,140		9,424,364
McKesson Corp.		16,420		8,815,077
Molina Healthcare, Inc.*		26,270		10,792,504
UnitedHealth Group, Inc.		18,940		9,369,618
Total				38,401,563
Hotels, Restaurants & Leisure 0.99%
Caesars Entertainment, Inc.*		119,040		5,206,810
Household Products 0.95%
Procter & Gamble Co.		30,690		4,979,453
Industrial REITS 0.86%
Prologis, Inc.		34,670		4,514,727
Insurance 7.05%
Allstate Corp.		80,970		14,008,620
Arch Capital Group Ltd.*		86,200		7,968,328
Arthur J Gallagher & Co.		26,590		6,648,563
RenaissanceRe Holdings Ltd.		35,960		8,451,679
Total				37,077,190

See Notes to Schedule of Investments. 59

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – GROWTH AND INCOME PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Interactive Media & Services 2.63%
Alphabet, Inc. Class A*		91,520	$	13,813,114
Life Sciences Tools & Services 1.52%
Thermo Fisher Scientific, Inc.		13,740		7,985,825
Machinery 2.95%
Cummins, Inc.		18,060		5,321,379
Parker-Hannifin Corp.		18,320		10,182,073
Total				15,503,452
Media 1.99%
Comcast Corp. Class A		241,940		10,488,099
Metals & Mining 1.07%
Reliance, Inc.		16,780		5,607,540
Oil, Gas & Consumable Fuels 7.21%
Chesapeake Energy Corp.		122,740		10,902,994
Diamondback Energy, Inc.		70,200		13,911,534
Shell PLC ADR		195,600		13,113,024
Total				37,927,552
Real Estate Management & Development 1.53%
CBRE Group, Inc. Class A*		82,990		8,069,948
Residential REITS 0.89%
American Homes 4 Rent Class A		127,420		4,686,508
Semiconductors & Semiconductor Equipment 2.94%
KLA Corp.		8,510		5,944,831
Taiwan Semiconductor Manufacturing Co. Ltd. ADR		70,030		9,527,581
Total				15,472,412
Software 3.66%
Adobe, Inc.*		14,970		7,553,862
Microsoft Corp.		27,740		11,670,773
Total				19,224,635
Specialty Retail 5.46%
AutoZone, Inc.*		1,780		5,609,937
Best Buy Co., Inc.		106,360		8,724,711
Lowe’s Cos., Inc.		30,270		7,710,677
Valvoline, Inc.*		149,140		6,647,170
Total				28,692,495

60 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SERIES FUND, INC. – GROWTH AND INCOME PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Technology Hardware, Storage & Peripherals 1.82%
NetApp, Inc.		91,290	$	9,582,711
Trading Companies & Distributors 2.01%
AerCap Holdings NV (Ireland)*(b)		121,430		10,553,481
Total Common Stocks (cost $381,724,129)				527,246,946
	Principal Amount
SHORT-TERM INVESTMENTS 0.81%
REPURCHASE AGREEMENTS 0.81%
Repurchase Agreement dated 3/28/2024, 2.800% due 4/1/2024 with Fixed Income Clearing Corp. collateralized by $4,399,500 of U.S. Treasury Bond at 4.250% due 2/15/2054; value: $4,346,833; proceeds: $4,262,861 (cost $4,261,535)	$	4,261,535		4,261,535
Total Investments in Securities 101.07% (cost $385,985,664)				531,508,481
Other Assets and Liabilities – Net (1.07)%				(5,637,243	)
Net Assets 100.00%			$	525,871,238

ADR	American Depositary Receipt.
REITS	Real Estate Investment Trusts.
*	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 March 31, 2024 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Long-Term Investments
Common Stocks
Beverages	$	–	$	7,989,375	$	–	$	7,989,375
Remaining Industries		519,257,571		–		–		519,257,571
Short-Term Investments
Repurchase Agreements		–		4,261,535		–		4,261,535
Total	$	519,257,571	$	12,250,910	$	–	$	531,508,481

(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. When applicable, each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.

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

See Notes to Schedule of Investments. 61

Schedule of Investments (unaudited)

LORD ABBETT SERIES FUND, INC. – GROWTH OPPORTUNITIES PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
LONG-TERM INVESTMENTS 98.97%
COMMON STOCKS 98.97%
Aerospace & Defense 3.85%
Axon Enterprise, Inc.*		5,483	$	1,715,521
TransDigm Group, Inc.		1,385		1,705,766
Total				3,421,287
Beverages 0.43%
Celsius Holdings, Inc.*		4,640		384,749
Biotechnology 8.17%
Apellis Pharmaceuticals, Inc.*		7,950		467,301
Arcellx, Inc.*		10,651		740,777
Blueprint Medicines Corp.*		7,578		718,849
Bridgebio Pharma, Inc.*		16,689		516,024
Krystal Biotech, Inc.*		5,701		1,014,379
Natera, Inc.*		17,474		1,598,172
Neurocrine Biosciences, Inc.*		9,615		1,326,101
SpringWorks Therapeutics, Inc.*		17,775		874,885
Total				7,256,488
Broadline Retail 1.70%
MercadoLibre, Inc. (Uruguay)*(a)		996		1,505,912
Building Products 2.30%
Lennox International, Inc.		1,324		647,118
Trex Co., Inc.*		13,996		1,396,101
Total				2,043,219
Capital Markets 5.14%
ARES Management Corp. Class A		9,534		1,267,831
Cboe Global Markets, Inc.		4,293		788,753
Coinbase Global, Inc. Class A*		5,310		1,407,787
Tradeweb Markets, Inc. Class A		10,592		1,103,369
Total				4,567,740
Commercial Services & Supplies 1.36%
Copart, Inc.*		20,792		1,204,273
Communications Equipment 2.02%
Arista Networks, Inc.*		6,175		1,790,626

62 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – GROWTH OPPORTUNITIES PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Construction & Engineering 4.13%
Comfort Systems USA, Inc.		3,831	$	1,217,147
EMCOR Group, Inc.		3,532		1,236,907
Quanta Services, Inc.		4,678		1,215,344
Total				3,669,398
Consumer Staples Distribution & Retail 1.15%
Maplebear, Inc.*		27,504		1,025,624
Diversified Consumer Services 1.42%
Duolingo, Inc.*		5,709		1,259,291
Electrical Equipment 2.02%
Vertiv Holdings Co. Class A		21,986		1,795,597
Entertainment 4.05%
Live Nation Entertainment, Inc.*		8,671		917,132
Spotify Technology SA (Sweden)*(a)		10,155		2,679,904
Total				3,597,036
Financial Services 2.39%
Affirm Holdings, Inc.*		17,510		652,423
Apollo Global Management, Inc.		13,040		1,466,348
Total				2,118,771
Ground Transportation 2.25%
Saia, Inc.*		3,411		1,995,435
Health Care Equipment & Supplies 6.59%
Dexcom, Inc.*		11,854		1,644,150
Glaukos Corp.*		10,311		972,224
IDEXX Laboratories, Inc.*		1,692		913,562
RxSight, Inc.*		16,557		854,010
Shockwave Medical, Inc.*		4,504		1,466,637
Total				5,850,583
Hotels, Restaurants & Leisure 9.85%
Cava Group, Inc.*		16,093		1,127,315
Chipotle Mexican Grill, Inc.*		479		1,392,343
DoorDash, Inc. Class A*		21,613		2,976,542
DraftKings, Inc. Class A*		48,051		2,181,996
Wingstop, Inc.		2,907		1,065,125
Total				8,743,321

See Notes to Schedule of Investments. 63

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – GROWTH OPPORTUNITIES PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Household Durables 1.28%
Lennar Corp. Class A		6,606	$	1,136,100
Information Technology Services 3.07%
MongoDB, Inc.*		3,055		1,095,645
Shopify, Inc. Class A (Canada)*(a)		21,133		1,630,834
Total				2,726,479
Interactive Media & Services 1.53%
Pinterest, Inc. Class A*		39,264		1,361,283
Life Sciences Tools & Services 0.95%
Repligen Corp.*		4,589		844,009
Media 1.67%
Trade Desk, Inc. Class A*		16,965		1,483,080
Personal Care Products 1.00%
elf Beauty, Inc.*		4,538		889,584
Professional Services 1.05%
Booz Allen Hamilton Holding Corp.		6,278		931,906
Real Estate Management & Development 0.75%
CoStar Group, Inc.*		6,941		670,501
Semiconductors & Semiconductor Equipment 4.55%
Entegris, Inc.		8,002		1,124,601
KLA Corp.		1,458		1,018,515
Monolithic Power Systems, Inc.		2,805		1,900,163
Total				4,043,279
Software 19.46%
AppLovin Corp. Class A*		18,729		1,296,421
Cadence Design Systems, Inc.*		3,528		1,098,196
Crowdstrike Holdings, Inc. Class A*		6,554		2,101,147
CyberArk Software Ltd. (Israel)*(a)		5,310		1,410,495
Datadog, Inc. Class A*		13,563		1,676,387
Gitlab, Inc. Class A*		16,129		940,643
HubSpot, Inc.*		2,552		1,598,981
Manhattan Associates, Inc.*		3,431		858,539
Monday.com Ltd. (Israel)*(a)		5,712		1,290,169
Palantir Technologies, Inc. Class A*		49,951		1,149,373

64 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – GROWTH OPPORTUNITIES PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Software (continued)
Procore Technologies, Inc.*		14,638	$	1,202,805
Samsara, Inc. Class A*		23,951		905,108
Synopsys, Inc.*		1,161		663,512
Zscaler, Inc.*		5,681		1,094,331
Total				17,286,107
Specialty Retail 1.20%
Ross Stores, Inc.		7,261		1,065,624
Technology Hardware, Storage & Peripherals 1.83%
Super Micro Computer, Inc.*		1,608		1,624,128
Textiles, Apparel & Luxury Goods 1.81%
Deckers Outdoor Corp.*		1,706		1,605,790
Total Common Stocks (cost $70,295,484)				87,897,220
	Principal Amount
SHORT-TERM INVESTMENTS 2.03%
REPURCHASE AGREEMENTS 2.03%
Repurchase Agreement dated 3/28/2024, 2.800% due 4/1/2024 with Fixed Income Clearing Corp. collateralized by $1,858,600 of U.S. Treasury Bond at 4.250% due 2/15/2054; value: $1,836,350; proceeds: $1,800,844 (cost $1,800,284)	$	1,800,284		1,800,284
Total Investments in Securities 101.00% (cost $72,095,768)				89,697,504
Other Assets and Liabilities – Net (1.00)%				(890,274	)
Net Assets 100.00%			$	88,807,230

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

See Notes to Schedule of Investments. 65

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SERIES FUND, INC. – GROWTH OPPORTUNITIES PORTFOLIO March 31, 2024

The following is a summary of the inputs used as of March 31, 2024 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Long-Term Investments
Common Stocks	$	87,897,220	$	–	$	–	$	87,897,220
Short-Term Investments
Repurchase Agreements		–		1,800,284		–		1,800,284
Total	$	87,897,220	$	1,800,284	$	–	$	89,697,504

(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. When applicable, each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized

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

66 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

LORD ABBETT SERIES FUND, INC. – MID CAP STOCK PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
LONG-TERM INVESTMENTS 99.33%
COMMON STOCKS 99.33%
Banks 1.79%
East West Bancorp, Inc.		60,840	$	4,813,052
Beverages 1.51%
Carlsberg AS Class B(a)		29,570		4,049,466
Building Products 5.73%
Allegion PLC (Ireland)(b)		32,380		4,361,910
Builders FirstSource, Inc.*		22,980		4,792,479
Masco Corp.		78,930		6,225,998
Total				15,380,387
Capital Markets 5.85%
Ameriprise Financial, Inc.		10,960		4,805,303
KKR & Co., Inc.		60,250		6,059,945
Moelis & Co. Class A		85,290		4,841,913
Total				15,707,161
Chemicals 1.30%
Avient Corp.		80,550		3,495,870
Communications Equipment 1.12%
F5, Inc.*		15,930		3,020,169
Construction & Engineering 1.72%
EMCOR Group, Inc.		13,190		4,619,138
Construction Materials 3.20%
CRH PLC (Ireland)(b)		50,990		4,398,398
Eagle Materials, Inc.		15,460		4,201,255
Total				8,599,653
Consumer Staples Distribution & Retail 3.73%
BJ’s Wholesale Club Holdings, Inc.*		55,570		4,203,871
Target Corp.		32,840		5,819,576
Total				10,023,447
Containers & Packaging 1.16%
Avery Dennison Corp.		13,910		3,105,408

See Notes to Schedule of Investments. 67

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – MID CAP STOCK PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Electric: Utilities 4.25%
Entergy Corp.		41,000	$	4,332,880
FirstEnergy Corp.		97,703		3,773,290
Portland General Electric Co.		78,489		3,296,538
Total				11,402,708
Electronic Equipment, Instruments & Components 6.32%
Crane NXT Co.		44,270		2,740,313
Keysight Technologies, Inc.*		25,070		3,920,446
Littelfuse, Inc.		10,322		2,501,537
TD SYNNEX Corp.		35,370		4,000,347
Teledyne Technologies, Inc.*		8,850		3,799,482
Total				16,962,125
Energy Equipment & Services 1.00%
Liberty Energy, Inc.		129,560		2,684,483
Financial Services 1.50%
Global Payments, Inc.		30,080		4,020,493
Ground Transportation 2.65%
Landstar System, Inc.		19,710		3,799,299
Norfolk Southern Corp.		13,040		3,323,505
Total				7,122,804
Health Care Providers & Services 8.63%
Cencora, Inc.		24,910		6,052,881
Laboratory Corp. of America Holdings		24,840		5,426,546
Molina Healthcare, Inc.*		16,220		6,663,663
Tenet Healthcare Corp.*		47,860		5,030,565
Total				23,173,655
Hotels, Restaurants & Leisure 1.17%
Caesars Entertainment, Inc.*		71,650		3,133,971
Household Durables 1.23%
Helen of Troy Ltd.*		28,680		3,305,083
Insurance 10.70%
Allstate Corp.		29,050		5,025,941
American Financial Group, Inc.		29,870		4,076,658
Arch Capital Group Ltd.*		45,100		4,169,044
Arthur J Gallagher & Co.		11,050		2,762,942

68 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – MID CAP STOCK PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Insurance (continued)
Kemper Corp.		81,170	$	5,026,046
RenaissanceRe Holdings Ltd.		17,770		4,176,483
White Mountains Insurance Group Ltd.		1,950		3,498,885
Total				28,735,999
Leisure Products 1.09%
Brunswick Corp.		30,470		2,940,964
Machinery 4.73%
Crane Co.		21,269		2,874,080
Cummins, Inc.		11,340		3,341,331
Parker-Hannifin Corp.		11,670		6,486,069
Total				12,701,480
Media 1.00%
Nexstar Media Group, Inc.		15,630		2,692,893
Multi-Utilities 1.40%
CMS Energy Corp.		62,550		3,774,267
Oil, Gas & Consumable Fuels 6.05%
Chesapeake Energy Corp.		58,810		5,224,092
Devon Energy Corp.		108,210		5,429,978
Permian Resources Corp.		316,620		5,591,509
Total				16,245,579
Professional Services 4.14%
CACI International, Inc. Class A*		8,710		3,299,609
Maximus, Inc.		47,490		3,984,411
WNS Holdings Ltd. (India)*(b)		76,130		3,846,849
Total				11,130,869
Real Estate Management & Development 1.75%
CBRE Group, Inc. Class A*		48,310		4,697,664
Residential REITS 1.07%
American Homes 4 Rent Class A		78,340		2,881,345
Retail REITS 1.03%
Kimco Realty Corp.		140,730		2,759,715

See Notes to Schedule of Investments. 69

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – MID CAP STOCK PORTFOLIO March 31, 2024

Investments	Shares		Fair Value
Semiconductors & Semiconductor Equipment 2.50%
Silicon Motion Technology Corp. ADR		34,900	$	2,685,206
Teradyne, Inc.		35,820		4,041,571
Total				6,726,777
Software 1.04%
Aspen Technology, Inc.*		13,110		2,796,101
Specialty Retail 3.91%
Academy Sports & Outdoors, Inc.		50,530		3,412,796
Best Buy Co., Inc.		53,590		4,395,988
Valvoline, Inc.*		60,160		2,681,331
Total				10,490,115
Technology Hardware, Storage & Peripherals 1.90%
NetApp, Inc.		48,660		5,107,840
Trading Companies & Distributors 3.16%
AerCap Holdings NV (Ireland)*(b)		61,190		5,318,023
Core & Main, Inc. Class A*		55,210		3,160,772
Total				8,478,795
Total Common Stocks (cost $205,820,466)				266,779,476
	Principal Amount
SHORT-TERM INVESTMENTS 1.20%
REPURCHASE AGREEMENTS 1.20%
Repurchase Agreement dated 3/28/2024, 2.800% due 4/1/2024 with Fixed Income Clearing Corp. collateralized by $1,746,100 of U.S. Treasury Bond at 2.125% due 2/15/2054; $1,527,900 of U.S. Treasury Inflation Indexed Bond at 4.25% due 2/15/2054; value: $3,281,940; proceeds: $3,218,551 (cost $3,217,550)	$	3,217,550		3,217,550
Total Investments in Securities 100.53% (cost $209,038,016)				269,997,026
Other Assets and Liabilities – Net (0.53)%				(1,425,189	)
Net Assets 100.00%			$	268,571,837

ADR	American Depositary Receipt.
REITS	Real Estate Investment Trusts.
*	Non-income producing security.
(a)	Investment in non-U.S. dollar denominated securities.
(b)	Foreign security traded in U.S. dollars.

70 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SERIES FUND, INC. – MID CAP STOCK PORTFOLIO March 31, 2024

The following is a summary of the inputs used as of March 31, 2024 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Long-Term Investments
Common Stocks
Beverages	$	–	$	4,049,466	$	–	$	4,049,466
Remaining Industries		262,730,010		–		–		262,730,010
Short-Term Investments
Repurchase Agreements		–		3,217,550		–		3,217,550
Total	$	262,730,010	$	7,267,016	$	–	$	269,997,026

(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. When applicable, each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.

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

See Notes to Schedule of Investments. 71

Schedule of Investments (unaudited)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
LONG-TERM INVESTMENTS 98.72%
ASSET-BACKED SECURITIES 23.87%
Automobiles 8.93%
Ally Auto Receivables Trust Series 2023-1 Class A3	5.46%		5/15/2028	$	300,000	$	301,768
AmeriCredit Automobile Receivables Trust Series 2023-1 Class A2A	5.84%		10/19/2026		154,812		154,884
AmeriCredit Automobile Receivables Trust Series 2023-1 Class A3	5.62%		11/18/2027		170,000		170,854
AmeriCredit Automobile Receivables Trust Series 2023-1 Class C	5.80%		12/18/2028		100,000		100,859
AmeriCredit Automobile Receivables Trust Series 2023-A2 Class A2	6.19%		4/19/2027		306,116		307,146
Avis Budget Rental Car Funding AESOP LLC Series 2019-3A Class A†	2.36%		3/20/2026		115,000		112,287
Avis Budget Rental Car Funding AESOP LLC Series 2020-2A Class A†	2.02%		2/20/2027		260,000		245,589
Bayview Opportunity Master Fund VII LLC Series 2024-CAR1 Class A†(a)	6.572% (30 day USD SOFR Average + 1.10%	)#	12/26/2031		250,000		250,000
BMW Vehicle Lease Trust Series 2023-2 Class A3	5.99%		9/25/2026		495,000		499,170
CarMax Auto Owner Trust Series 2020-2 Class D	5.75%		5/17/2027		275,000		274,929
CarMax Auto Owner Trust Series 2023-3 Class A2A	5.72%		11/16/2026		242,810		242,980
CarMax Auto Owner Trust Series 2023-3 Class A3	5.28%		5/15/2028		300,000		300,726
Carvana Auto Receivables Trust Series 2021-N1 Class A	0.70%		1/10/2028		14,738		14,125
Carvana Auto Receivables Trust Series 2022-P1 Class A3	3.35%		2/10/2027		285,381		280,943
Carvana Auto Receivables Trust Series 2022-P2 Class A4	4.68%		2/10/2028		120,000		118,521
Citizens Auto Receivables Trust Series 2023-1 Class A3†	5.84%		1/18/2028		300,000		302,680
Citizens Auto Receivables Trust Series 2023-2 Class A2A†	6.09%		10/15/2026		134,638		134,930
Credit Acceptance Auto Loan Trust Series 2021-3A Class A†	1.00%		5/15/2030		56,002		55,604
Drive Auto Receivables Trust Series 2021-2 Class D	1.39%		3/15/2029		171,000		163,752
Enterprise Fleet Financing LLC Series 2023-1 Class A2†	5.51%		1/22/2029		101,834		101,781
Exeter Automobile Receivables Trust Series 2021-2A Class C	0.98%		6/15/2026		10,495		10,414
First Investors Auto Owners Trust Series 2022-2A Class A†	6.26%		7/15/2027		110,139		110,385
Flagship Credit Auto Trust Series 2022-4 Class A2†	6.15%		9/15/2026		92,536		92,607

72 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
Automobiles (continued)
Flagship Credit Auto Trust Series 2022-4 Class A3†	6.32%	6/15/2027	$	285,000	$	286,809
Flagship Credit Auto Trust Series 2023-1 Class A3†	5.01%	8/16/2027		270,000		268,379
Ford Credit Auto Lease Trust Series 2024-A Class A3	5.06%	5/15/2027		160,000		159,850
Ford Credit Auto Lease Trust Series 2024-A Class B	5.29%	6/15/2027		310,000		309,333
Ford Credit Auto Owner Trust Series 2020-C Class A3	0.41%	7/15/2025		9,401		9,360
Ford Credit Auto Owner Trust Series 2022-1 Class A†	3.88%	11/15/2034		240,000		232,474
GM Financial Automobile Leasing Trust Series 2022-2 Class A3	3.42%	6/20/2025		111,133		110,749
GM Financial Automobile Leasing Trust Series 2023-3 Class A3	5.38%	11/20/2026		680,000		680,949
GM Financial Consumer Automobile Receivables Trust Series 2021-1 Class A3	0.35%	10/16/2025		13,382		13,277
Hertz Vehicle Financing III LP Series 2021-2A Class A†	1.68%	12/27/2027		255,000		233,004
Hertz Vehicle Financing LLC Series 2021-1A Class A†	1.21%	12/26/2025		175,000		170,901
Honda Auto Receivables Owner Trust Series 2023-1 Class A2	5.22%	10/21/2025		333,341		332,929
Huntington Auto Trust Series 2024-1A Class A3†	5.23%	1/16/2029		200,000		200,485
Hyundai Auto Lease Securitization Trust Series 2024-A Class A3†	5.02%	3/15/2027		145,000		144,384
NextGear Floorplan Master Owner Trust Series 2023-1A Class A2†	5.74%	3/15/2028		235,000		236,970
OneMain Direct Auto Receivables Trust Series 2021-1A Class A†	0.87%	7/14/2028		159,665		154,013
PenFed Auto Receivables Owner Trust Series 2022-A Class A3†	3.96%	4/15/2026		266,222		264,521
Santander Drive Auto Receivables Trust Series 2022-6 Class C	4.96%	11/15/2028		325,000		321,509
Santander Drive Auto Receivables Trust Series 2024-1 Class A2	5.71%	2/16/2027		225,000		225,137
SBNA Auto Lease Trust Series 2023-A Class A3†	6.51%	4/20/2027		335,000		340,402
SBNA Auto Lease Trust Series 2024-A Class A3†	5.39%	11/20/2026		180,000		180,078
SFS Auto Receivables Securitization Trust Series 2023-1A Class A3†	5.47%	10/20/2028		130,000		130,659
SFS Auto Receivables Securitization Trust Series 2024-1 Class A3†	4.95%	5/21/2029		85,000		84,654
Volkswagen Auto Lease Trust Series 2024-A Class A3	5.21%	6/21/2027		225,000		225,612
Westlake Automobile Receivables Trust Series 2021-2A Class C†	0.89%	7/15/2026		67,085		66,222
Westlake Automobile Receivables Trust Series 2022-2A Class A2A†	5.87%	7/15/2026		181,327		181,428
Westlake Automobile Receivables Trust Series 2022-2A Class B†	6.14%	3/15/2028		100,000		100,563

See Notes to Schedule of Investments. 73

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Automobiles (continued)
Westlake Automobile Receivables Trust Series 2022-2A Class C†	4.85%		9/15/2027	$	80,000	$	79,237
Westlake Automobile Receivables Trust Series 2023-1A Class A2A†	5.51%		6/15/2026		95,789		95,737
Westlake Automobile Receivables Trust Series 2023-3A Class A2A†	5.96%		10/15/2026		567,318		567,841
Westlake Flooring Master Trust Series 2024-1A Class A†	5.43%		2/15/2028		195,000		195,361
Total							10,949,761
Credit Card 1.35%
Capital One Multi-Asset Execution Trust Series 2022-A2 Class A	3.49%		5/15/2027		680,000		666,598
Discover Card Execution Note Trust Series 2022-A4 Class A	5.03%		10/15/2027		120,000		119,827
Discover Card Execution Note Trust Series 2023-A2 Class A	4.93%		6/15/2028		690,000		689,151
Synchrony Card Funding LLC Series 2023-A1 Class A	5.54%		7/15/2029		185,000		186,861
Total							1,662,437
Other 13.14%
ACAM Ltd. Series 2019-FL1 Class A†	6.841% (1 mo. USD Term SOFR + 1.51%	)#	11/17/2034		3,362		3,359
ACREC Ltd. Series 2021-FL1 Class A†	6.591% (1 mo. USD Term SOFR + 1.26%	)#	10/16/2036		249,491		247,786
ACRES Commercial Realty Ltd. Series 2021-FL2 Class A†	6.84% (1 mo. USD Term SOFR + 1.51%	)#	1/15/2037		311,516		307,906
Affirm Asset Securitization Trust Series 2023-B Class 1A†	6.82%		9/15/2028		225,000		228,489
Affirm Asset Securitization Trust Series 2023-B Class A†	6.82%		9/15/2028		180,000		182,791
Affirm Asset Securitization Trust Series 2024-A Class A†	5.61%		2/15/2029		100,000		99,836
Apidos CLO XXII Ltd. Series 2015-22A Class A1R†	6.639% (3 mo. USD Term SOFR + 1.32%	)#	4/20/2031		225,401		225,838
Apidos CLO XXXI Ltd. Series 2019-31A Class A1R†	6.676% (3 mo. USD Term SOFR + 1.36%	)#	4/15/2031		250,000		250,129
Aqua Finance Trust Series 2021-A Class A†	1.54%		7/17/2046		102,250		91,485
Arbor Realty Commercial Real Estate Notes Ltd. Series 2021-FL2 Class A†	6.54% (1 mo. USD Term SOFR + 1.21%	)#	5/15/2036		159,957		159,582

74 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Other (continued)
Arbor Realty Commercial Real Estate Notes Ltd. Series 2021-FL3 Class A†	6.51% (1 mo. USD Term SOFR + 1.18%	)#	8/15/2034	$	150,000	$	148,551
Arbor Realty Commercial Real Estate Notes Ltd. Series 2022-FL1 Class A†	6.769% (30 day USD SOFR Average + 1.45%	)#	1/15/2037		230,000		229,094
ARES L CLO Ltd. Series 2018-50A Class AR†	6.626% (3 mo. USD Term SOFR + 1.31%	)#	1/15/2032		250,000		250,075
Bain Capital Credit CLO Ltd. Series 2017-1A Class A1R†	6.549% (3 mo. USD Term SOFR + 1.23%	)#	7/20/2030		179,825		180,259
Bain Capital Credit CLO Ltd. Series 2019-1A Class AR†	6.701% (3 mo. USD Term SOFR + 1.39%	)#	4/19/2034		450,000		449,657
Ballyrock CLO Ltd. Series 2019-2A Class A1RR†	6.719% (3 mo. USD Term SOFR + 1.40%	)#	2/20/2036		250,000		250,545
Barings CLO Ltd. Series 2019-3A Class A1R†	6.649% (3 mo. USD Term SOFR + 1.33%	)#	4/20/2031		500,000		501,151
Benefit Street Partners CLO IV Ltd. Series 2014-IVA Class AR4†	6.671% (3 mo. USD Term SOFR + 1.35%	)#	4/20/2034		250,000		249,962
Betony CLO 2 Ltd. Series 2018-1A Class A1†	6.659% (3 mo. USD Term SOFR + 1.34%	)#	4/30/2031		343,799		344,567
BlueMountain Fuji U.S. CLO I Ltd. Series 2017-1A Class A1R†	6.559% (3 mo. USD Term SOFR + 1.24%	)#	7/20/2029		206,106		206,028
BSPRT Issuer Ltd. Series 2021-FL7 Class A†	6.76% (1 mo. USD Term SOFR + 1.43%	)#	12/15/2038		218,677		218,158
Carlyle Global Market Strategies CLO Ltd. Series 2015-1A Class AR3†	6.559% (3 mo. USD Term SOFR + 1.24%	)#	7/20/2031		440,160		440,270
Carlyle U.S. CLO Ltd. Series 2017-3A Class A1AR†	6.479% (3 mo. USD Term SOFR + 1.16%	)#	7/20/2029		186,660		186,609
Carlyle U.S. CLO Ltd. Series 2019-1A Class A1AR†	6.659% (3 mo. USD Term SOFR + 1.34%	)#	4/20/2031		250,000		250,250
Cedar Funding IX CLO Ltd. Series 2018-9A Class A1†	6.559% (3 mo. USD Term SOFR + 1.24%	)#	4/20/2031		218,124		218,309

See Notes to Schedule of Investments. 75

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Other (continued)
Cedar Funding X CLO Ltd. Series 2019-10A Class AR†	6.679% (3 mo. USD Term SOFR + 1.36%	)#	10/20/2032	$	250,000	$	250,030
Cedar Funding XI Clo Ltd. Series 2019-11A Class A1R†	6.655% (3 mo. USD Term SOFR + 1.31%	)#	5/29/2032		220,000		220,548
Cedar Funding XIV CLO Ltd. Series 2021-14A Class A†	6.676% (3 mo. USD Term SOFR + 1.36%	)#	7/15/2033		250,000		250,080
CIFC Funding Ltd. Series 2013-2A Class A1L2†	6.56% (3 mo. USD Term SOFR + 1.26%	)#	10/18/2030		445,506		445,506
Dell Equipment Finance Trust Series 2023-2 Class A2†	5.84%		1/22/2029		345,016		345,342
Dryden 113 CLO Ltd. Series 2022-113A Class A1R†	7.046% (3 mo. USD Term SOFR + 1.63%	)#	10/20/2035		250,000		251,247
Dryden Senior Loan Fund Series 2017-47A Class A1R†	6.556% (3 mo. USD Term SOFR + 1.24%	)#	4/15/2028		118,276		118,523
Elmwood CLO VII Ltd. Series 2020-4A Class AR†	6.947% (3 mo. USD Term SOFR + 1.63%	)#	1/17/2034		250,000		251,153
Galaxy XIX CLO Ltd. Series 2015-19A Class A1RR†	6.53% (3 mo. USD Term SOFR + 1.21%	)#	7/24/2030		122,966		123,225
GreatAmerica Leasing Receivables Series 2024-1 Class A4†	5.08%		12/16/2030		375,000		374,146
Greystone CRE Notes Ltd. Series 2021-FL3 Class A†	6.46% (1 mo. USD Term SOFR + 1.13%	)#	7/15/2039		170,000		168,319
HGI CRE CLO Ltd. Series 2021-FL2 Class A†	6.441% (1 mo. USD Term SOFR + 1.11%	)#	9/17/2036		109,640		108,832
KKR CLO 24 Ltd. Series 24 Class A1R†	6.659% (3 mo. USD Term SOFR + 1.34%	)#	4/20/2032		250,000		250,063
Lendmark Funding Trust Series 2021-2A Class A†	2.00%		4/20/2032		260,000		235,383
LFT CRE Ltd. Series 2021-FL1 Class B†	7.19% (1 mo. USD Term SOFR + 1.86%	)#	6/15/2039		200,000		192,911
LoanCore Issuer Ltd. Series 2022-CRE7 Class A†	6.869% (30 day USD SOFR Average + 1.55%	)#	1/17/2037		259,964		257,710
Madison Park Funding XI Ltd. Series 2013-11A Class AR2†	6.477% (3 mo. USD Term SOFR + 1.16%	)#	7/23/2029		223,712		223,779

76 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Other (continued)
Madison Park Funding XVII Ltd. Series 2015-17A Class AR2†	6.579% (3 mo. USD Term SOFR + 1.26%	)#	7/21/2030	$	234,444	$	234,377
Magnetite Xxix Ltd. Series 2021-29A Class A†	6.566% (3 mo. USD Term SOFR + 1.25%	)#	1/15/2034		250,000		250,325
Mariner Finance Issuance Trust Series 2021-BA Class A†	2.10%		11/20/2036		305,000		276,710
Mariner Finance Issuance Trust Series 2022-AA Class A†	6.45%		10/20/2037		330,000		330,929
MF1 LLC Series 2022-FL9 Class A†	7.476% (1 mo. USD Term SOFR + 2.15%	)#	6/19/2037		100,000		100,120
MF1 LLC Series 2024-FL14 Class A†	7.063% (1 mo. USD Term SOFR + 1.74%	)#	3/19/2039		280,000		280,613
MF1 Ltd. Series 2021-FL7 Class A†	6.521% (1 mo. USD Term SOFR + 1.19%	)#	10/16/2036		207,418		206,121
Mountain View CLO LLC Series 2017-1A Class AR†	6.666% (3 mo. USD Term SOFR + 1.35%	)#	10/16/2029		82,838		82,839
Newark BSL CLO 1 Ltd. Series 2016-1A Class A1R†	6.681% (3 mo. USD Term SOFR + 1.36%	)#	12/21/2029		172,553		172,858
OCP CLO Ltd. Series 2016-11A Class A1R2†	6.741% (3 mo. USD Term SOFR + 1.42%	)#	4/26/2036		250,000		249,548
OCP CLO Ltd. Series 2019-17A Class A1R†	6.619% (3 mo. USD Term SOFR + 1.30%	)#	7/20/2032		300,000		299,795
Octagon Investment Partners XIV Ltd. Series 2012-1A Class AARR†	6.526% (3 mo. USD Term SOFR + 1.21%	)#	7/15/2029		119,197		119,253
Octagon Investment Partners XVII Ltd. Series 2013-1A Class A1R2†	6.586% (3 mo. USD Term SOFR + 1.26%	)#	1/25/2031		202,708		202,819
Octagon Investment Partners XXI Ltd. Series 2014-1A Class AAR3†	6.568% (3 mo. USD Term SOFR + 1.26%	)#	2/14/2031		500,000		501,148
Octagon Loan Funding Ltd. Series 2014-1A Class ARR†	6.761% (3 mo. USD Term SOFR + 1.44%	)#	11/18/2031		250,000		250,788
OneMain Financial Issuance Trust Series 2018-2A Class A†	3.57%		3/14/2033		24,073		23,962
OneMain Financial Issuance Trust Series 2021-1A Class A1†	1.55%		6/16/2036		140,000		126,928

See Notes to Schedule of Investments. 77

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Other (continued)
OneMain Financial Issuance Trust Series 2021-3A Class A†	5.94%		5/15/2034	$	245,000	$	246,484
Pagaya AI Debt Trust Series 2022-1 Class A†	2.03%		10/15/2029		53,685		53,165
PFS Financing Corp. Series 2023-A Class A†	5.80%		3/15/2028		220,000		222,550
Rad CLO 2 Ltd. Series 2018-2A Class AR†	6.656% (3 mo. USD Term SOFR + 1.34%	)#	10/15/2031		230,963		231,450
Romark CLO Ltd. Series 2017-1A Class A1R†	6.607% (3 mo. USD Term SOFR + 1.29%	)#	10/23/2030		181,890		182,289
RR Ltd. Series 2022-24A Class A1AR†	7.077% (3 mo. USD Term SOFR + 1.73%	)#	1/15/2036		360,000		361,345
SCF Equipment Leasing LLC Series 2021-1A Class A3†	0.83%		8/21/2028		77,754		76,966
SCF Equipment Leasing LLC Series 2022-1A Class A3†	2.92%		7/20/2029		277,569		272,804
TCI-Flatiron CLO Ltd. Series 2018-1A Class ANR†	6.641% (3 mo. USD Term SOFR + 1.32%	)#	1/29/2032		250,000		250,449
Upstart Securitization Trust Series 2021-5 Class A†	1.31%		11/20/2031		3,140		3,131
Valley Stream Park CLO Ltd. Series 2022-1A Class AR†	6.948% (3 mo. USD Term SOFR + 1.63%	)#	10/20/2034		300,000		301,178
Verizon Master Trust Series 2024-2 Class A†	4.83%		12/22/2031		225,000		225,311
Total							16,123,738
Rec Vehicle Loan 0.12%
Octane Receivables Trust Series 2021-1A Class A†	0.93%		3/22/2027		7,370		7,289
Octane Receivables Trust Series 2022-1A Class A2†	4.18%		3/20/2028		62,933		62,433
Octane Receivables Trust Series 2022-2A Class A†	5.11%		2/22/2028		75,461		75,145
Total							144,867
Student Loan 0.33%
Navient Private Education Refi Loan Trust Series 2020-FA Class A†	1.22%		7/15/2069		61,490		55,728
Navient Private Education Refi Loan Trust Series 2021-CA Class A†	1.06%		10/15/2069		167,584		147,415
Navient Private Education Refi Loan Trust Series 2022-A Class A†	2.23%		7/15/2070		164,645		145,484
Nelnet Student Loan Trust Series 2021-A Class APT1†	1.36%		4/20/2062		60,206		54,474
Towd Point Asset Trust Series 2018-SL1 Class A†	6.044% (1 mo. USD Term SOFR + 0.71%	)#	1/25/2046		884		884
Total							403,985
Total Asset-Backed Securities (cost $29,372,075)							29,284,788

78 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
CORPORATE BONDS 63.93%
Aerospace/Defense 0.72%
BAE Systems PLC (United Kingdom)†(b)	5.00%	3/26/2027	$	200,000	$	199,651
Boeing Co.	2.196%	2/4/2026		158,000		147,987
Boeing Co.	4.875%	5/1/2025		62,000		61,321
HEICO Corp.	5.25%	8/1/2028		60,000		60,392
Hexcel Corp.	4.95%	8/15/2025		135,000		132,752
L3Harris Technologies, Inc.	5.40%	1/15/2027		124,000		124,937
RTX Corp.	5.75%	11/8/2026		71,000		72,111
RTX Corp.	5.75%	1/15/2029		76,000		78,691
Total						877,842
Agriculture 1.40%
BAT Capital Corp.	2.789%	9/6/2024		54,000		53,324
BAT Capital Corp.	3.222%	8/15/2024		385,000		381,259
BAT International Finance PLC (United Kingdom)(b)	5.931%	2/2/2029		109,000		111,948
Imperial Brands Finance PLC (United Kingdom)†(b)	6.125%	7/27/2027		400,000		408,239
Philip Morris International, Inc.	4.75%	2/12/2027		18,000		17,907
Philip Morris International, Inc.	4.875%	2/13/2029		135,000		134,232
Philip Morris International, Inc.	5.125%	11/17/2027		151,000		151,841
Reynolds American, Inc.	4.45%	6/12/2025		76,000		75,006
Viterra Finance BV (Netherlands)†(b)	2.00%	4/21/2026		411,000		381,852
Total						1,715,608
Airlines 0.21%
British Airways Pass-Through Trust Series 2013-1 Class A (United Kingdom)†(b)	4.625%	12/20/2025		7,427		7,410
Mileage Plus Holdings LLC/Mileage Plus Intellectual Property Assets Ltd.†	6.50%	6/20/2027		115,344		116,071
United Airlines Pass-Through Trust Series 2020-1 Class A	5.875%	4/15/2029		132,972		132,669
Total						256,150
Apparel 0.20%
PVH Corp.	4.625%	7/10/2025		38,000		37,444
Tapestry, Inc.	7.05%	11/27/2025		168,000		171,532
Tapestry, Inc.	7.35%	11/27/2028		34,000		35,846
Total						244,822
Auto Manufacturers 3.46%
Daimler Truck Finance North America LLC†	5.00%	1/15/2027		150,000		149,620
Ford Motor Credit Co. LLC	2.30%	2/10/2025		200,000		194,005
Ford Motor Credit Co. LLC	3.375%	11/13/2025		400,000		385,013
Ford Motor Credit Co. LLC	4.134%	8/4/2025		200,000		195,549

See Notes to Schedule of Investments. 79

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Auto Manufacturers (continued)
Ford Motor Credit Co. LLC	5.125%		6/16/2025	$	200,000	$	198,268
Ford Motor Credit Co. LLC	5.80%		3/8/2029		237,000		238,053
General Motors Financial Co., Inc.	2.75%		6/20/2025		134,000		129,541
General Motors Financial Co., Inc.	2.90%		2/26/2025		54,000		52,692
General Motors Financial Co., Inc.	3.95%		4/13/2024		140,000		139,883
General Motors Financial Co., Inc.	4.35%		1/17/2027		62,000		60,577
General Motors Financial Co., Inc.	5.40%		4/6/2026		73,000		73,050
General Motors Financial Co., Inc.	5.40%		5/8/2027		103,000		103,301
Hyundai Capital America†	0.875%		6/14/2024		160,000		158,368
Hyundai Capital America†	1.00%		9/17/2024		47,000		45,987
Hyundai Capital America†	1.30%		1/8/2026		75,000		69,751
Hyundai Capital America†	1.50%		6/15/2026		91,000		83,736
Hyundai Capital America†	2.00%		6/15/2028		121,000		106,295
Hyundai Capital America†	5.25%		1/8/2027		117,000		116,928
Hyundai Capital America†	5.30%		1/8/2029		68,000		68,120
Hyundai Capital America†	5.50%		3/30/2026		112,000		112,222
Hyundai Capital America†	5.65%		6/26/2026		121,000		121,426
Hyundai Capital America†	5.95%		9/21/2026		130,000		131,550
Hyundai Capital America†	6.10%		9/21/2028		128,000		131,933
Hyundai Capital America†	6.25%		11/3/2025		166,000		167,762
Hyundai Capital America†	6.50%		1/16/2029		151,000		158,496
Nissan Motor Acceptance Co. LLC†	6.95%		9/15/2026		229,000		235,335
Volkswagen Group of America Finance LLC†	5.40%		3/20/2026		200,000		200,136
Volkswagen Group of America Finance LLC†	5.70%		9/12/2026		200,000		202,061
Volkswagen Group of America Finance LLC†	5.80%		9/12/2025		213,000		214,018
Total							4,243,676
Banks 21.47%
ABN AMRO Bank NV (Netherlands)†(b)	6.339% (1 yr. CMT + 1.65%	)#	9/18/2027		200,000		203,510
AIB Group PLC (Ireland)†(b)	4.263% (3 mo. USD LIBOR + 1.87%	)#	4/10/2025		600,000		599,671
AIB Group PLC (Ireland)†(b)	6.608% (SOFR + 2.33%	)#	9/13/2029		400,000		417,182
Australia & New Zealand Banking Group Ltd. (Australia)†(b)	4.40%		5/19/2026		200,000		195,210
Banco Bilbao Vizcaya Argentaria SA (Spain)(b)	5.381%		3/13/2029		200,000		201,857
Bank of America Corp.	1.197% (SOFR + 1.01%	)#	10/24/2026		31,000		29,024
Bank of America Corp.	1.319% (SOFR + 1.15%	)#	6/19/2026		237,000		225,353

80 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Banks (continued)
Bank of America Corp.	1.53% (SOFR + 0.65%	)#	12/6/2025	$	78,000	$	75,820
Bank of America Corp.	1.734% (SOFR + 0.96%	)#	7/22/2027		74,000		68,240
Bank of America Corp.	3.384% (SOFR + 1.33%	)#	4/2/2026		271,000		265,132
Bank of America Corp.	3.95%		4/21/2025		157,000		154,526
Bank of America Corp.	4.948% (SOFR + 2.04%	)#	7/22/2028		168,000		166,781
Bank of Ireland Group PLC (Ireland)†(b)	2.029% (1 yr. CMT + 1.10%	)#	9/30/2027		400,000		366,076
Bank of Ireland Group PLC (Ireland)†(b)	5.601% (SOFR + 1.62%	)#	3/20/2030		200,000		200,752
Bank of Ireland Group PLC (Ireland)†(b)	6.253% (1 yr. CMT + 2.65%	)#	9/16/2026		400,000		402,633
Bank of Montreal (Canada)(b)	5.266%		12/11/2026		231,000		232,098
Bank of New York Mellon Corp.	4.543% (SOFR + 1.17%	)#	2/1/2029		51,000		50,266
Bank of New York Mellon Corp.	4.947% (SOFR + 1.03%	)#	4/26/2027		70,000		69,697
Bank of Nova Scotia (Canada)(b)	5.35%		12/7/2026		194,000		195,053
Barclays PLC (United Kingdom)(b)	3.932% (3 mo. USD LIBOR + 1.61%	)#	5/7/2025		307,000		306,383
Barclays PLC (United Kingdom)(b)	5.829% (SOFR + 2.21%	)#	5/9/2027		200,000		200,484
Barclays PLC (United Kingdom)(b)	6.496% (SOFR + 1.88%	)#	9/13/2027		200,000		204,080
Barclays PLC (United Kingdom)(b)	7.385% (1 yr. CMT + 3.30%	)#	11/2/2028		200,000		212,185
BNP Paribas SA (France)†(b)	1.904% (SOFR + 1.61%	)#	9/30/2028		200,000		178,136
BNP Paribas SA (France)†(b)	2.219% (SOFR + 2.07%	)#	6/9/2026		229,000		220,268
BNP Paribas SA (France)†(b)	2.591% (SOFR + 1.23%	)#	1/20/2028		414,000		383,490
BNP Paribas SA (France)†(b)	5.125% (1 yr. CMT + 1.45%	)#	1/13/2029		200,000		199,770
BNP Paribas SA (France)†(b)	5.497% (SOFR + 1.59%	)#	5/20/2030		200,000		200,515
BPCE SA (France)†(b)	4.50%		3/15/2025		200,000		197,115
BPCE SA (France)†(b)	4.875%		4/1/2026		200,000		196,301
BPCE SA (France)†(b)	5.203%		1/18/2027		250,000		250,588

See Notes to Schedule of Investments. 81

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Banks (continued)
BPCE SA (France)†(b)	5.975% (SOFR + 2.10%	)#	1/18/2027	$	250,000	$	250,770
CaixaBank SA (Spain)†(b)	5.673% (SOFR + 1.78%	)#	3/15/2030		200,000		200,001
Canadian Imperial Bank of Commerce (Canada)(b)	5.001%		4/28/2028		134,000		133,598
Citigroup, Inc.	3.106% (SOFR + 2.84%	)#	4/8/2026		743,000		724,384
Citigroup, Inc.	3.352% (3 mo. USD Term SOFR + 1.16%	)#	4/24/2025		233,000		232,617
Citigroup, Inc.	3.875%		3/26/2025		59,000		58,009
Citigroup, Inc.	5.174% (SOFR + 1.36%	)#	2/13/2030		231,000		229,990
Citizens Bank NA	4.575% (SOFR + 2.00%	)#	8/9/2028		250,000		239,380
Citizens Bank NA	6.064% (SOFR + 1.45%	)#	10/24/2025		250,000		249,035
Citizens Financial Group, Inc.	5.841% (SOFR + 2.01%	)#	1/23/2030		79,000		78,925
Credit Agricole SA (France)†(b)	4.375%		3/17/2025		435,000		428,428
Danske Bank AS (Denmark)†(b)	0.976% (1 yr. CMT + 0.55%	)#	9/10/2025		200,000		195,570
Danske Bank AS (Denmark)†(b)	1.621% (1 yr. CMT + 1.35%	)#	9/11/2026		200,000		188,360
Danske Bank AS (Denmark)†(b)	3.244% (3 mo. USD LIBOR + 1.59%	)#	12/20/2025		400,000		392,144
Danske Bank AS (Denmark)†(b)	4.298% (1 yr. CMT + 1.75%	)#	4/1/2028		600,000		579,198
Danske Bank AS (Denmark)†(b)	5.427% (1 yr. CMT + 0.95%	)#	3/1/2028		200,000		200,490
Danske Bank AS (Denmark)†(b)	5.705% (1 yr. CMT + 1.40%	)#	3/1/2030		200,000		201,356
Danske Bank AS (Denmark)†(b)	6.466% (1 yr. CMT + 2.10%	)#	1/9/2026		400,000		401,533
Discover Bank	4.25%		3/13/2026		250,000		243,671
Federation des Caisses Desjardins du Quebec (Canada)†(b)	5.25%		4/26/2029		200,000		199,604
Federation des Caisses Desjardins du Quebec (Canada)†(b)	5.70%		3/14/2028		200,000		203,162
First-Citizens Bank & Trust Co.	2.969% (3 mo. USD Term SOFR + 1.72%	)#	9/27/2025		250,000		244,825
Goldman Sachs Group, Inc.	1.948% (SOFR + 0.91%	)#	10/21/2027		242,000		222,511

82 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Banks (continued)
Goldman Sachs Group, Inc.	2.64% (SOFR + 1.11%	)#	2/24/2028	$	75,000	$	69,874
Goldman Sachs Group, Inc.	4.223% (3 mo. USD Term SOFR + 1.56%	)#	5/1/2029		152,000		146,343
Goldman Sachs Group, Inc.	5.798% (SOFR + 1.08%	)#	8/10/2026		94,000		94,329
HSBC Holdings PLC (United Kingdom)(b)	0.976% (SOFR + 0.71%	)#	5/24/2025		200,000		198,469
HSBC Holdings PLC (United Kingdom)(b)	2.999% (SOFR + 1.43%	)#	3/10/2026		200,000		194,873
HSBC Holdings PLC (United Kingdom)(b)	5.887% (SOFR + 1.57%	)#	8/14/2027		200,000		201,793
Huntington Bancshares, Inc.	4.443% (SOFR + 1.97%	)#	8/4/2028		63,000		60,821
Huntington National Bank	4.008% (SOFR + 1.21%	)#	5/16/2025		250,000		249,069
ING Groep NV (Netherlands)(b)	6.083% (SOFR + 1.56%	)#	9/11/2027		252,000		255,201
Intesa Sanpaolo SpA (Italy)†(b)	3.25%		9/23/2024		200,000		197,626
Intesa Sanpaolo SpA (Italy)†(b)	5.017%		6/26/2024		1,000,000		996,786
JPMorgan Chase & Co.	0.768% (SOFR + 0.49%	)#	8/9/2025		148,000		145,218
JPMorgan Chase & Co.	0.824% (3 mo. USD Term SOFR + 0.54%	)#	6/1/2025		172,000		170,517
JPMorgan Chase & Co.	3.782% (3 mo. USD Term SOFR + 1.60%	)#	2/1/2028		64,000		61,650
JPMorgan Chase & Co.	4.851% (SOFR + 1.99%	)#	7/25/2028		69,000		68,441
JPMorgan Chase & Co.	6.277% (SOFR + 0.92%	)#	2/24/2026		115,000		115,580
JPMorgan Chase & Co.	6.538% (SOFR + 1.18%	)#	2/24/2028		77,000		77,911
KeyBank NA	4.70%		1/26/2026		250,000		244,294
KeyBank NA	5.683% (SOFR + 0.32%	)#	6/14/2024		250,000		249,833
Lloyds Banking Group PLC (United Kingdom)(b)	4.582%		12/10/2025		200,000		196,193
Lloyds Banking Group PLC (United Kingdom)(b)	5.462% (1 yr. CMT + 1.38%	)#	1/5/2028		200,000		200,109
Lloyds Banking Group PLC (United Kingdom)(b)	5.985% (1 yr. CMT + 1.48%	)#	8/7/2027		200,000		201,946
M&T Bank Corp.	4.553% (SOFR + 1.78%	)#	8/16/2028		94,000		89,792

See Notes to Schedule of Investments. 83

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Banks (continued)
Macquarie Bank Ltd. (Australia)†(b)	5.391%		12/7/2026	$	104,000	$	104,569
Macquarie Group Ltd. (Australia)†(b)	1.201% (SOFR + 0.69%	)#	10/14/2025		76,000		74,113
Macquarie Group Ltd. (Australia)†(b)	1.34% (SOFR + 1.07%	)#	1/12/2027		65,000		60,316
Macquarie Group Ltd. (Australia)†(b)	3.763% (3 mo. USD LIBOR + 1.37%	)#	11/28/2028		28,000		26,336
Macquarie Group Ltd. (Australia)†(b)	5.108% (SOFR + 2.21%	)#	8/9/2026		180,000		179,116
Manufacturers & Traders Trust Co.	4.65%		1/27/2026		524,000		512,877
Mitsubishi UFJ Financial Group, Inc. (Japan)(b)	0.962% (1 yr. CMT + 0.45%	)#	10/11/2025		200,000		194,899
Mitsubishi UFJ Financial Group, Inc. (Japan)(b)	4.788% (1 yr. CMT + 1.70%	)#	7/18/2025		215,000		214,264
Mitsubishi UFJ Financial Group, Inc. (Japan)(b)	5.063% (1 yr. CMT + 1.55%	)#	9/12/2025		200,000		199,334
Morgan Stanley	0.79% (SOFR + 0.53%	)#	5/30/2025		276,000		273,454
Morgan Stanley	4.679% (SOFR + 1.67%	)#	7/17/2026		30,000		29,687
Morgan Stanley	5.123% (SOFR + 1.73%	)#	2/1/2029		76,000		75,844
Morgan Stanley	5.449% (SOFR + 1.63%	)#	7/20/2029		106,000		106,965
Morgan Stanley	6.138% (SOFR + 1.77%	)#	10/16/2026		59,000		59,695
NatWest Group PLC (United Kingdom)(b)	5.583% (1 yr. CMT + 1.10%	)#	3/1/2028		200,000		201,075
NatWest Group PLC (United Kingdom)(b)	5.808% (1 yr. CMT + 1.95%	)#	9/13/2029		400,000		406,365
NatWest Group PLC (United Kingdom)(b)	5.847% (1 yr. CMT + 1.35%	)#	3/2/2027		200,000		201,031
PNC Financial Services Group, Inc.	6.615% (SOFR + 1.73%	)#	10/20/2027		80,000		82,386
Royal Bank of Canada (Canada)(b)	6.00%		11/1/2027		80,000		82,718
Santander Holdings USA, Inc.	2.49% (SOFR + 1.25%	)#	1/6/2028		68,000		61,825
Santander Holdings USA, Inc.	5.807% (SOFR + 2.33%	)#	9/9/2026		40,000		40,035
Santander U.K. Group Holdings PLC (United Kingdom)(b)	2.469% (SOFR + 1.22%	)#	1/11/2028		200,000		183,871
Santander U.K. Group Holdings PLC (United Kingdom)†(b)	4.75%		9/15/2025		200,000		196,390

84 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Banks (continued)
Santander U.K. Group Holdings PLC (United Kingdom)(b)	6.534% (SOFR + 2.60%	)#	1/10/2029	$	200,000	$	206,857
Societe Generale SA (France)†(b)	2.226% (1 yr. CMT + 1.05%	)#	1/21/2026		200,000		193,929
Standard Chartered PLC (United Kingdom)†(b)	6.187% (1 yr. CMT + 1.85%	)#	7/6/2027		200,000		202,075
Sumitomo Mitsui Financial Group, Inc. (Japan)(b)	5.80%		7/13/2028		200,000		206,135
Swedbank AB (Sweden)†(b)	6.136%		9/12/2026		200,000		203,660
Toronto-Dominion Bank (Canada)(b)	4.693%		9/15/2027		98,000		97,111
Toronto-Dominion Bank (Canada)(b)	5.532%		7/17/2026		6,000		6,055
Truist Financial Corp.	1.267% (SOFR + 0.61%	)#	3/2/2027		90,000		83,224
Truist Financial Corp.	4.873% (SOFR + 1.44%	)#	1/26/2029		55,000		54,114
Truist Financial Corp.	5.435% (SOFR + 1.62%	)#	1/24/2030		69,000		68,939
Truist Financial Corp.	6.047% (SOFR + 2.05%	)#	6/8/2027		71,000		71,976
U.S. Bancorp	4.548% (SOFR + 1.66%	)#	7/22/2028		117,000		114,721
U.S. Bancorp	4.653% (SOFR + 1.23%	)#	2/1/2029		112,000		109,822
U.S. Bancorp	5.384% (SOFR + 1.56%	)#	1/23/2030		53,000		53,248
U.S. Bancorp	5.775% (SOFR + 2.02%	)#	6/12/2029		123,000		125,182
U.S. Bancorp	6.787% (SOFR + 1.88%	)#	10/26/2027		180,000		186,443
UBS AG (Switzerland)(b)	5.125%		5/15/2024		600,000		598,802
UBS Group AG (Switzerland)†(b)	1.305% (SOFR + 0.98%	)#	2/2/2027		250,000		231,407
UBS Group AG (Switzerland)†(b)	1.494% (1 yr. CMT + 0.85%	)#	8/10/2027		200,000		181,920
UBS Group AG (Switzerland)†(b)	2.193% (SOFR + 2.04%	)#	6/5/2026		250,000		239,772
UBS Group AG (Switzerland)†(b)	4.488% (1 yr. CMT + 1.55%	)#	5/12/2026		400,000		394,424
UBS Group AG (Switzerland)†(b)	5.428% (1 yr. CMT + 1.52%	)#	2/8/2030		200,000		200,360
UBS Group AG (Switzerland)†(b)	5.711% (1 yr. CMT + 1.55%	)#	1/12/2027		600,000		602,067
Wells Fargo & Co.	2.188% (SOFR + 2.00%	)#	4/30/2026		84,000		80,915

See Notes to Schedule of Investments. 85

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Banks (continued)
Wells Fargo & Co.	4.54% (SOFR + 1.56%	)#	8/15/2026	$	161,000	$	158,988
Wells Fargo & Co.	4.808% (SOFR + 1.98%	)#	7/25/2028		169,000		166,570
Wells Fargo & Co.	5.198% (SOFR + 1.50%	)#	1/23/2030		177,000		176,678
Wells Fargo & Co.	5.574% (SOFR + 1.74%	)#	7/25/2029		195,000		197,371
Wells Fargo & Co.	6.303% (SOFR + 1.79%	)#	10/23/2029		99,000		103,145
Total							26,335,500
Beverages 0.11%
Bacardi Ltd./Bacardi-Martini BV†	5.25%		1/15/2029		140,000		138,718
Biotechnology 0.26%
Amgen, Inc.	5.15%		3/2/2028		81,000		81,558
Illumina, Inc.	5.75%		12/13/2027		154,000		155,866
Illumina, Inc.	5.80%		12/12/2025		84,000		84,175
Total							321,599
Building Materials 0.05%
Carrier Global Corp.	5.80%		11/30/2025		62,000		62,435
Chemicals 0.45%
Celanese U.S. Holdings LLC	6.165%		7/15/2027		354,000		360,708
International Flavors & Fragrances, Inc.†	1.23%		10/1/2025		200,000		187,266
Total							547,974
Coal 0.39%
Alliance Resource Operating Partners LP/Alliance Resource Finance Corp.†	7.50%		5/1/2025		275,000		274,182
Coronado Finance Pty. Ltd. (Australia)†(b)	10.75%		5/15/2026		200,000		209,496
Total							483,678
Commercial Services 0.57%
Block, Inc.	2.75%		6/1/2026		21,000		19,771
Element Fleet Management Corp. (Canada)†(b)	5.643%		3/13/2027		85,000		85,291
Gartner, Inc.†	4.50%		7/1/2028		139,000		132,574
Global Payments, Inc.	2.65%		2/15/2025		36,000		35,079
Global Payments, Inc.	4.95%		8/15/2027		178,000		176,679
Triton Container International Ltd.†	1.15%		6/7/2024		211,000		209,124
Triton Container International Ltd.†	2.05%		4/15/2026		46,000		42,404
Total							700,922

86 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Computers 0.38%
Booz Allen Hamilton, Inc.†	3.875%		9/1/2028	$	130,000	$	121,916
Dell International LLC/EMC Corp.	4.90%		10/1/2026		146,000		145,141
Dell International LLC/EMC Corp.	6.02%		6/15/2026		153,000		155,030
Hewlett Packard Enterprise Co.	5.90%		10/1/2024		48,000		48,080
Total							470,167
Diversified Financial Services 3.29%
AerCap Ireland Capital DAC/AerCap Global Aviation Trust (Ireland)(b)	1.75%		10/29/2024		300,000		292,930
AerCap Ireland Capital DAC/AerCap Global Aviation Trust (Ireland)†(b)	6.45%		4/15/2027		156,000		160,234
AerCap Ireland Capital DAC/AerCap Global Aviation Trust (Ireland)(b)	6.50%		7/15/2025		198,000		199,978
Aircastle Ltd.†	5.25%		8/11/2025		113,000		112,046
Ally Financial, Inc.	3.875%		5/21/2024		232,000		231,312
Ally Financial, Inc.	5.75%		11/20/2025		103,000		102,306
American Express Co.	5.098% (SOFR + 1.00%	)#	2/16/2028		70,000		69,916
American Express Co.	5.282% (SOFR + 1.28%	)#	7/27/2029		223,000		224,484
American Express Co.	5.389% (SOFR + 0.97%	)#	7/28/2027		36,000		36,133
Ameriprise Financial, Inc.	5.70%		12/15/2028		103,000		106,306
Aviation Capital Group LLC†	1.95%		1/30/2026		132,000		123,273
Aviation Capital Group LLC†	5.50%		12/15/2024		109,000		108,609
Aviation Capital Group LLC†	6.25%		4/15/2028		174,000		177,722
Avolon Holdings Funding Ltd. (Ireland)†(b)	2.125%		2/21/2026		249,000		232,094
Avolon Holdings Funding Ltd. (Ireland)†(b)	2.75%		2/21/2028		84,000		75,203
Avolon Holdings Funding Ltd. (Ireland)†(b)	3.25%		2/15/2027		68,000		63,229
Avolon Holdings Funding Ltd. (Ireland)†(b)	3.95%		7/1/2024		450,000		447,430
Avolon Holdings Funding Ltd. (Ireland)†(b)	4.25%		4/15/2026		116,000		112,000
Avolon Holdings Funding Ltd. (Ireland)†(b)	5.75%		3/1/2029		81,000		80,664
Avolon Holdings Funding Ltd. (Ireland)†(b)	6.375%		5/4/2028		33,000		33,693
Bread Financial Holdings, Inc.†	7.00%		1/15/2026		25,000		25,186
Capital One Financial Corp.	4.166% (SOFR + 1.37%	)#	5/9/2025		96,000		95,806
LPL Holdings, Inc.†	4.00%		3/15/2029		169,000		155,477
LPL Holdings, Inc.†	4.625%		11/15/2027		189,000		181,531
LPL Holdings, Inc.	6.75%		11/17/2028		150,000		157,171
Navient Corp.	5.875%		10/25/2024		144,000		143,968
Navient Corp.	6.75%		6/25/2025		37,000		37,308

See Notes to Schedule of Investments. 87

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Diversified Financial Services (continued)
Nuveen Finance LLC†	4.125%		11/1/2024	$	148,000	$	146,735
Radian Group, Inc.	6.20%		5/15/2029		107,000		108,662
Total							4,041,406
Electric 6.32%
AES Corp.†	3.30%		7/15/2025		433,000		419,731
AES Corp.	5.45%		6/1/2028		136,000		135,795
Alexander Funding Trust II†	7.467%		7/31/2028		200,000		211,614
Algonquin Power & Utilities Corp. (Canada)(b)	5.365%	(c)	6/15/2026		96,000		95,509
Alliant Energy Finance LLC†	5.95%		3/30/2029		279,000		287,581
Ameren Corp.	5.00%		1/15/2029		127,000		126,380
American Electric Power Co., Inc.	5.20%		1/15/2029		168,000		168,492
Black Hills Corp.	5.95%		3/15/2028		105,000		108,457
Calpine Corp.†	5.25%		6/1/2026		14,000		13,865
CenterPoint Energy, Inc.	5.25%		8/10/2026		83,000		83,214
Cleco Corporate Holdings LLC	3.743%		5/1/2026		414,000		398,265
Constellation Energy Generation LLC	5.60%		3/1/2028		95,000		96,804
DTE Energy Co.	4.22%	(c)	11/1/2024		207,000		205,123
DTE Energy Co.	4.875%		6/1/2028		145,000		143,436
DTE Energy Co.	5.10%		3/1/2029		140,000		139,499
Duke Energy Corp.	4.85%		1/5/2029		93,000		92,171
Electricite de France SA (France)†(b)	5.70%		5/23/2028		201,000		203,999
Evergy Missouri West, Inc.†	5.15%		12/15/2027		182,000		182,191
Eversource Energy	5.00%		1/1/2027		48,000		47,888
Eversource Energy	5.95%		2/1/2029		106,000		109,427
Fells Point Funding Trust†	3.046%		1/31/2027		355,000		333,171
FirstEnergy Pennsylvania Electric Co.†	5.15%		3/30/2026		65,000		64,509
FirstEnergy Transmission LLC†	4.35%		1/15/2025		247,000		244,053
ITC Holdings Corp.†	4.95%		9/22/2027		78,000		77,537
Liberty Utilities Co.†	5.577%		1/31/2029		80,000		80,490
National Grid PLC (United Kingdom)(b)	5.602%		6/12/2028		70,000		71,340
NextEra Energy Capital Holdings, Inc.	5.749%		9/1/2025		117,000		117,541
NextEra Energy Capital Holdings, Inc.	6.051%		3/1/2025		80,000		80,330
NextEra Energy Operating Partners LP†	3.875%		10/15/2026		309,000		288,407
NRG Energy, Inc.†	3.75%		6/15/2024		262,000		260,627
Oncor Electric Delivery Co. LLC	4.30%		5/15/2028		31,000		30,345
Pacific Gas & Electric Co.	3.15%		1/1/2026		258,645		248,798
Pacific Gas & Electric Co.	3.30%		12/1/2027		100,000		92,954
Pacific Gas & Electric Co.	5.45%		6/15/2027		48,000		48,166
Pacific Gas & Electric Co.	5.55%		5/15/2029		84,000		84,761

88 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Electric (continued)
PacifiCorp	5.10%		2/15/2029	$	57,000	$	57,454
Public Service Enterprise Group, Inc.	5.85%		11/15/2027		93,000		95,291
Southern Co.	4.475%	(c)	8/1/2024		820,000		816,004
Southern Co.	5.113%		8/1/2027		177,000		177,165
System Energy Resources, Inc.	6.00%		4/15/2028		639,000		652,228
Vistra Operations Co. LLC†	3.55%		7/15/2024		350,000		347,516
Vistra Operations Co. LLC†	4.875%		5/13/2024		123,000		122,921
WEC Energy Group, Inc.	5.60%		9/12/2026		95,000		96,120
Total							7,757,169
Electronics 0.09%
Arrow Electronics, Inc.	6.125%		3/1/2026		58,000		57,983
Keysight Technologies, Inc.	4.60%		4/6/2027		55,000		54,155
Total							112,138
Energy-Alternate Sources 0.16%
Greenko Dutch BV (Netherlands)†(b)	3.85%		3/29/2026		203,500		191,677
Engineering & Construction 0.20%
Jacobs Engineering Group, Inc.	6.35%		8/18/2028		240,000		248,189
Entertainment 0.31%
SeaWorld Parks & Entertainment, Inc.†	8.75%		5/1/2025		130,000		130,203
Warnermedia Holdings, Inc.	3.638%		3/15/2025		115,000		112,734
Warnermedia Holdings, Inc.	3.755%		3/15/2027		65,000		62,049
Warnermedia Holdings, Inc.	3.788%		3/15/2025		82,000		80,497
Total							385,483
Environmental Control 0.25%
Veralto Corp.†	5.35%		9/18/2028		140,000		141,898
Veralto Corp.†	5.50%		9/18/2026		161,000		161,687
Total							303,585
Equity Real Estate 0.06%
Jones Lang LaSalle, Inc.	6.875%		12/1/2028		73,000		77,363
Food 0.54%
Albertsons Cos., Inc./Safeway, Inc./New Albertsons LP/Albertsons LLC†	3.25%		3/15/2026		143,000		136,492
Albertsons Cos., Inc./Safeway, Inc./New Albertsons LP/Albertsons LLC†	4.625%		1/15/2027		262,000		253,743
Campbell Soup Co.	5.20%		3/19/2027		46,000		46,126
Campbell Soup Co.	5.20%		3/21/2029		36,000		36,186

See Notes to Schedule of Investments. 89

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
Food (continued)
Campbell Soup Co.	5.30%	3/20/2026	$	46,000	$	46,054
Conagra Brands, Inc.	5.30%	10/1/2026		104,000		104,267
Tyson Foods, Inc.	5.40%	3/15/2029		36,000		36,335
Total						659,203
Gas 0.61%
Brooklyn Union Gas Co.†	4.632%	8/5/2027		254,000		246,748
National Fuel Gas Co.	5.50%	1/15/2026		211,000		210,803
National Fuel Gas Co.	5.50%	10/1/2026		80,000		80,051
NiSource, Inc.	5.25%	3/30/2028		36,000		36,265
Southwest Gas Corp.	5.45%	3/23/2028		80,000		81,238
Southwest Gas Corp.	5.80%	12/1/2027		89,000		91,130
Total						746,235
Hand/Machine Tools 0.38%
Regal Rexnord Corp.†	6.05%	2/15/2026		187,000		188,064
Regal Rexnord Corp.†	6.05%	4/15/2028		273,000		276,977
Total						465,041
Health Care-Products 0.44%
Baxter International, Inc.	1.322%	11/29/2024		71,000		68,982
Solventum Corp.†	5.40%	3/1/2029		235,000		235,538
Solventum Corp.†	5.45%	2/25/2027		143,000		143,529
Zimmer Biomet Holdings, Inc.	5.35%	12/1/2028		91,000		92,357
Total						540,406
Health Care-Services 0.99%
Centene Corp.	2.45%	7/15/2028		130,000		115,412
Centene Corp.	4.25%	12/15/2027		687,000		655,556
HCA, Inc.	5.25%	4/15/2025		237,000		236,066
HCA, Inc.	5.25%	6/15/2026		18,000		17,953
HCA, Inc.	5.375%	2/1/2025		52,000		51,862
Humana, Inc.	5.70%	3/13/2026		78,000		77,930
IQVIA, Inc.	6.25%	2/1/2029		63,000		65,466
Total						1,220,245
Home Builders 0.04%
Toll Brothers Finance Corp.	4.875%	11/15/2025		45,000		44,517
Home Furnishings 0.04%
Leggett & Platt, Inc.	3.50%	11/15/2027		54,000		50,567

90 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Insurance 3.38%
Aon Corp.	8.205%		1/1/2027	$	100,000	$	107,869
Aon North America, Inc.	5.125%		3/1/2027		60,000		60,380
Aon North America, Inc.	5.15%		3/1/2029		167,000		168,039
Athene Global Funding†	5.339%		1/15/2027		125,000		124,516
Athene Global Funding†	5.516%		3/25/2027		138,000		138,198
Athene Global Funding†	5.583%		1/9/2029		117,000		117,844
Athene Global Funding†	5.684%		2/23/2026		99,000		99,418
Brighthouse Financial Global Funding†	1.55%		5/24/2026		256,217		234,634
CNO Financial Group, Inc.	5.25%		5/30/2025		119,000		118,404
CNO Global Funding†	1.75%		10/7/2026		150,000		136,820
Corebridge Global Funding†	5.20%		1/12/2029		70,000		70,126
Corebridge Global Funding†	5.75%		7/2/2026		51,000		51,080
Equitable Financial Life Global Funding†	1.40%		7/7/2025		143,000		135,650
Equitable Financial Life Global Funding†	5.45%		3/3/2028		138,000		137,810
F&G Annuities & Life, Inc.	7.40%		1/13/2028		155,000		161,129
F&G Global Funding†	0.90%		9/20/2024		59,000		57,580
F&G Global Funding†	1.75%		6/30/2026		332,000		301,213
F&G Global Funding†	2.30%		4/11/2027		114,000		102,469
F&G Global Funding†	5.15%		7/7/2025		307,000		302,443
GA Global Funding Trust†	0.80%		9/13/2024		300,000		293,564
GA Global Funding Trust†	3.85%		4/11/2025		372,000		365,143
GA Global Funding Trust†	5.50%		1/8/2029		163,000		163,734
Jackson Financial, Inc.	5.17%		6/8/2027		46,000		45,963
Jackson National Life Global Funding†	1.75%		1/12/2025		150,000		145,519
Jackson National Life Global Funding†	5.50%		1/9/2026		150,000		149,431
Jackson National Life Global Funding†	6.516% (SOFR + 1.15%	)#	6/28/2024		245,000		245,464
MGIC Investment Corp.	5.25%		8/15/2028		59,000		57,370
Mutual of Omaha Cos Global Funding†	5.80%		7/27/2026		50,000		50,481
Total							4,142,291
Leisure Time 0.25%
NCL Corp. Ltd.†	3.625%		12/15/2024		212,000		209,014
Royal Caribbean Cruises Ltd.†	8.25%		1/15/2029		88,000		93,215
Total							302,229
Lodging 0.28%
Hyatt Hotels Corp.	1.80%		10/1/2024		57,000		55,809
Hyatt Hotels Corp.	5.75%		1/30/2027		81,000		82,288
Las Vegas Sands Corp.	3.50%		8/18/2026		212,000		200,808
Total							338,905

See Notes to Schedule of Investments. 91

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
Machinery: Construction & Mining 0.47%
Weir Group PLC (United Kingdom)†(b)	2.20%	5/13/2026	$	616,000	$	571,974
Machinery-Diversified 0.02%
AGCO Corp.	5.45%	3/21/2027		28,000		28,137
Media 0.27%
AMC Networks, Inc.	4.75%	8/1/2025		35,000		34,978
Charter Communications Operating LLC/Charter Communications Operating Capital	6.15%	11/10/2026		123,000		123,993
FactSet Research Systems, Inc.	2.90%	3/1/2027		52,000		48,914
Nexstar Media, Inc.†	5.625%	7/15/2027		131,000		125,761
Total						333,646
Mining 1.52%
Anglo American Capital PLC (United Kingdom)†(b)	3.625%	9/11/2024		200,000		197,733
Anglo American Capital PLC (United Kingdom)†(b)	4.50%	3/15/2028		200,000		193,898
Anglo American Capital PLC (United Kingdom)†(b)	4.75%	4/10/2027		200,000		196,060
Freeport Indonesia PT (Indonesia)†(b)	4.763%	4/14/2027		200,000		195,777
Freeport-McMoRan, Inc.	4.55%	11/14/2024		226,000		224,427
Glencore Funding LLC†	1.625%	4/27/2026		26,000		24,117
Glencore Funding LLC†	3.875%	10/27/2027		34,000		32,637
Glencore Funding LLC†	4.00%	3/27/2027		407,000		393,604
Glencore Funding LLC†(a)	5.338%	4/4/2027		163,000		162,968
Glencore Funding LLC†(a)	5.371%	4/4/2029		162,000		162,378
Glencore Funding LLC†	6.125%	10/6/2028		85,000		87,889
Total						1,871,488
Miscellaneous Manufacturing 0.16%
Parker-Hannifin Corp.	3.65%	6/15/2024		53,000		52,772
Trinity Industries, Inc.	4.55%	10/1/2024		141,000		139,720
Total						192,492
Oil & Gas 6.07%
Apache Corp.	4.375%	10/15/2028		370,000		350,741
California Resources Corp.†	7.125%	2/1/2026		179,000		180,184
Canadian Natural Resources Ltd. (Canada)(b)	3.85%	6/1/2027		79,000		76,211
Chesapeake Energy Corp.†	5.50%	2/1/2026		159,000		158,088
Chord Energy Corp.†	6.375%	6/1/2026		116,000		116,570
Civitas Resources, Inc.†	5.00%	10/15/2026		200,000		195,687
Continental Resources, Inc.†	2.268%	11/15/2026		661,000		608,670
Continental Resources, Inc.	3.80%	6/1/2024		241,000		240,046
Continental Resources, Inc.	4.375%	1/15/2028		209,000		202,045

92 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
Oil & Gas (continued)
CrownRock LP/CrownRock Finance, Inc.†	5.625%	10/15/2025	$	99,000	$	98,827
Devon Energy Corp.	5.25%	10/15/2027		225,000		225,327
Ecopetrol SA (Colombia)(b)	5.375%	6/26/2026		122,000		120,046
Endeavor Energy Resources LP/EER Finance, Inc.†	5.75%	1/30/2028		120,000		121,048
EQT Corp.†	3.125%	5/15/2026		243,000		230,925
EQT Corp.	5.70%	4/1/2028		82,000		82,833
EQT Corp.	6.125%	2/1/2025		133,000		133,248
HF Sinclair Corp.†	5.00%	2/1/2028		201,000		195,371
Magnolia Oil & Gas Operating LLC/Magnolia Oil & Gas Finance Corp.†	6.00%	8/1/2026		222,000		218,535
Marathon Oil Corp.	5.30%	4/1/2029		117,000		116,825
Matador Resources Co.	5.875%	9/15/2026		282,000		282,206
MEG Energy Corp. (Canada)†(b)	7.125%	2/1/2027		182,000		184,830
Neptune Energy Bondco PLC (United Kingdom)†(b)	6.625%	5/15/2025		375,000		375,230
Occidental Petroleum Corp.	6.375%	9/1/2028		325,000		337,780
Ovintiv, Inc.	5.375%	1/1/2026		250,000		249,138
Ovintiv, Inc.	5.65%	5/15/2025		76,000		76,031
Ovintiv, Inc.	5.65%	5/15/2028		139,000		141,373
Patterson-UTI Energy, Inc.	3.95%	2/1/2028		145,000		137,142
PDC Energy, Inc.	5.75%	5/15/2026		338,000		337,644
Permian Resources Operating LLC†	6.875%	4/1/2027		54,000		54,054
Permian Resources Operating LLC†	7.75%	2/15/2026		142,000		143,941
Petroleos Mexicanos (Mexico)(b)	6.49%	1/23/2027		460,000		434,212
Range Resources Corp.	8.25%	1/15/2029		12,000		12,491
Sitio Royalties Operating Partnership LP/Sitio Finance Corp.†	7.875%	11/1/2028		118,000		122,153
SM Energy Co.	5.625%	6/1/2025		154,000		153,374
SM Energy Co.	6.75%	9/15/2026		129,000		129,217
Strathcona Resources Ltd. (Canada)†(b)	6.875%	8/1/2026		183,000		183,457
Suncor Energy, Inc. (Canada)(b)	7.875%	6/15/2026		103,000		108,220
Tengizchevroil Finance Co. International Ltd. (Kazakhstan)†(b)	2.625%	8/15/2025		200,000		190,345
Viper Energy, Inc.†	5.375%	11/1/2027		130,000		127,339
Total						7,451,404
Oil & Gas Services 0.17%
Welltec International ApS (Denmark)†(b)	8.25%	10/15/2026		200,000		205,412
Pharmaceuticals 0.98%
Bayer U.S. Finance II LLC†	4.25%	12/15/2025		300,000		292,611
Bayer U.S. Finance II LLC†	4.375%	12/15/2028		246,000		231,669

See Notes to Schedule of Investments. 93

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
Pharmaceuticals (continued)
Bayer U.S. Finance LLC†	6.125%	11/21/2026	$	200,000	$	201,711
Bayer U.S. Finance LLC†	6.25%	1/21/2029		400,000		407,178
Cigna Group	5.685%	3/15/2026		69,000		68,994
Total						1,202,163
Pipelines 1.91%
Buckeye Partners LP	3.95%	12/1/2026		181,000		173,164
Cheniere Corpus Christi Holdings LLC	5.875%	3/31/2025		55,000		55,023
Columbia Pipelines Holding Co. LLC†	6.055%	8/15/2026		269,000		272,048
DCP Midstream Operating LP	5.375%	7/15/2025		50,000		49,844
Enbridge, Inc. (Canada)(b)	5.90%	11/15/2026		75,000		76,414
Energy Transfer LP†	5.625%	5/1/2027		177,000		176,473
Energy Transfer LP†	6.00%	2/1/2029		183,000		184,742
EnLink Midstream LLC†	5.625%	1/15/2028		58,000		57,487
Kinder Morgan, Inc.	5.00%	2/1/2029		153,000		152,466
Kinetik Holdings LP†	6.625%	12/15/2028		89,000		90,637
ONEOK, Inc.	5.55%	11/1/2026		64,000		64,606
ONEOK, Inc.	5.65%	11/1/2028		64,000		65,458
Plains All American Pipeline LP/PAA Finance Corp.	3.60%	11/1/2024		58,000		57,273
Sabine Pass Liquefaction LLC	5.75%	5/15/2024		100,000		99,974
Targa Resources Partners LP/Targa Resources Partners Finance Corp.	6.50%	7/15/2027		173,000		175,024
Targa Resources Partners LP/Targa Resources Partners Finance Corp.	6.875%	1/15/2029		238,000		245,035
Western Midstream Operating LP	4.75%	8/15/2028		65,000		63,281
Western Midstream Operating LP	6.35%	1/15/2029		39,000		40,478
Williams Cos., Inc.	4.90%	3/15/2029		115,000		114,294
Williams Cos., Inc.	5.30%	8/15/2028		87,000		87,786
Williams Cos., Inc.	5.40%	3/2/2026		39,000		39,119
Total						2,340,626
REITS 2.08%
American Tower Corp.	1.60%	4/15/2026		202,000		187,656
American Tower Corp.	3.60%	1/15/2028		261,000		246,913
American Tower Corp.	3.65%	3/15/2027		125,000		119,866
American Tower Corp.	5.25%	7/15/2028		82,000		82,049
American Tower Corp.	5.50%	3/15/2028		123,000		124,097
Crown Castle, Inc.	3.65%	9/1/2027		94,000		89,139
Crown Castle, Inc.	4.80%	9/1/2028		70,000		68,672
Crown Castle, Inc.	5.00%	1/11/2028		74,000		73,256
EPR Properties	4.50%	6/1/2027		70,000		66,651

94 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
REITS (continued)
EPR Properties	4.75%	12/15/2026	$	171,000	$	165,609
GLP Capital LP/GLP Financing II, Inc.	5.375%	4/15/2026		79,000		78,364
HAT Holdings I LLC/HAT Holdings II LLC†	3.375%	6/15/2026		187,000		176,323
Kite Realty Group Trust	4.00%	3/15/2025		72,000		70,697
Prologis Targeted U.S. Logistics Fund LP†	5.25%	4/1/2029		60,000		59,870
VICI Properties LP/VICI Note Co., Inc.†	3.50%	2/15/2025		189,000		184,976
VICI Properties LP/VICI Note Co., Inc.†	3.75%	2/15/2027		178,000		168,815
VICI Properties LP/VICI Note Co., Inc.†	4.25%	12/1/2026		100,000		96,217
VICI Properties LP/VICI Note Co., Inc.†	4.50%	9/1/2026		111,000		107,753
VICI Properties LP/VICI Note Co., Inc.†	4.625%	6/15/2025		248,000		244,410
Vornado Realty LP	2.15%	6/1/2026		46,000		41,837
Vornado Realty LP	3.50%	1/15/2025		97,000		94,854
Total						2,548,024
Retail 0.28%
Sizzling Platter LLC/Sizzling Platter Finance Corp.†	8.50%	11/28/2025		175,000		176,943
Walgreens Boots Alliance, Inc.	3.45%	6/1/2026		170,000		162,196
Total						339,139
Semiconductors 0.37%
Entegris, Inc.†	4.75%	4/15/2029		121,000		116,095
Microchip Technology, Inc.	4.25%	9/1/2025		59,000		58,053
Micron Technology, Inc.	4.185%	2/15/2027		29,000		28,268
Micron Technology, Inc.	5.375%	4/15/2028		22,000		22,225
Qorvo, Inc.	1.75%	12/15/2024		30,000		29,169
SK Hynix, Inc. (South Korea)†(b)	5.50%	1/16/2027		200,000		200,229
Total						454,039
Shipbuilding 0.10%
Huntington Ingalls Industries, Inc.	2.043%	8/16/2028		143,000		124,924
Software 0.17%
Concentrix Corp.	6.65%	8/2/2026		59,000		59,474
Oracle Corp.	2.30%	3/25/2028		104,000		93,947
Take-Two Interactive Software, Inc.	4.95%	3/28/2028		59,000		58,797
Total						212,218
Telecommunications 0.82%
AT&T, Inc.	5.539%	2/20/2026		173,000		172,911
Motorola Solutions, Inc.	5.00%	4/15/2029		48,000		47,783
NBN Co. Ltd. (Australia)†(b)	5.75%	10/6/2028		200,000		206,905
Sprint Capital Corp.	6.875%	11/15/2028		190,000		202,622

See Notes to Schedule of Investments. 95

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Telecommunications (continued)
Sprint LLC	7.125%		6/15/2024	$	114,000	$	114,267
Telecom Italia SpA (Italy)†(b)	5.303%		5/30/2024		200,000		199,049
T-Mobile USA, Inc.	3.75%		4/15/2027		70,000		67,434
Total							1,010,971
Toys/Games/Hobbies 0.27%
Hasbro, Inc.	3.90%		11/19/2029		352,000		326,908
Transportation 0.05%
Ryder System, Inc.	5.30%		3/15/2027		59,000		59,441
Trucking & Leasing 0.92%
Fortress Transportation & Infrastructure Investors LLC†	6.50%		10/1/2025		118,000		117,914
GATX Corp.	5.40%		3/15/2027		50,000		50,369
Penske Truck Leasing Co. LP/PTL Finance Corp.†	3.40%		11/15/2026		48,000		45,682
Penske Truck Leasing Co. LP/PTL Finance Corp.†	4.20%		4/1/2027		271,000		263,356
Penske Truck Leasing Co. LP/PTL Finance Corp.†	5.35%		1/12/2027		151,000		151,185
Penske Truck Leasing Co. LP/PTL Finance Corp.†(a)	5.35%		3/30/2029		59,000		59,066
Penske Truck Leasing Co. LP/PTL Finance Corp.†	6.05%		8/1/2028		239,000		246,058
SMBC Aviation Capital Finance DAC (Ireland)†(b)	5.45%		5/3/2028		200,000		200,664
Total							1,134,294
Total Corporate Bonds (cost $78,475,576)							78,433,040
FLOATING RATE LOANS(d) 4.61%
Airlines 0.03%
Mileage Plus Holdings LLC 2020 Term Loan B	10.733% (3 mo. USD Term SOFR + 5.25%	)	6/21/2027		36,563		37,697
Diversified Financial Services 0.78%
Fleetcor Technologies Operating Co. LLC 2021 Term Loan B4	7.177% (1 mo. USD Term SOFR + 1.75%	)	4/28/2028		337,134		337,251
Jane Street Group LLC 2024 Term Loan B	7.942% (1 mo. USD Term SOFR + 2.50%	)	1/26/2028		249,356		249,761
NFP Corp. 2020 Term Loan	8.695% (1 mo. USD Term SOFR + 3.25%	)	2/16/2027		184,519		184,958
Setanta Aircraft Leasing Designated Activity Co. Term Loan B (Ireland)(b)	7.564% (3 mo. USD Term SOFR + 2.00%	)	11/5/2028		181,654		182,234
Total							954,204

96 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Electrical Components & Equipment 0.24%
Energizer Holdings, Inc. 2020 Term Loan	7.693% (1 mo. USD Term SOFR + 2.25%	)	12/22/2027	$	298,227	$	298,451
Food 0.15%
U.S. Foods, Inc. 2019 Term Loan B	7.442% (1 mo. USD Term SOFR + 2.00%	)	9/13/2026		178,958		179,539
Health Care Services 0.34%
DaVita, Inc. 2020 Term Loan B	7.192% (1 mo. USD Term SOFR + 1.75%	)	8/12/2026		269,726		270,027
HCA, Inc. 2021 Term Loan A	6.802% (1 mo. USD Term SOFR + 1.38%	)	6/30/2026		150,149		150,524
Total							420,551
Health Services 0.36%
Catalent Pharma Solutions, Inc. 2021 Term Loan B3	7.443% (1 mo. USD Term SOFR + 2.00%	)	2/22/2028		442,000		442,276
Housing 0.10%
SRS Distribution, Inc. 2021 Term Loan B	–	(e)	6/2/2028		122,000		122,982
Internet 0.53%
Gen Digital, Inc. 2021 Term Loan A	–	(e)	9/10/2027		320,724		320,289
Match Group, Inc. 2020 Term Loan B	7.233% (3 mo. USD Term SOFR + 1.75%	)	2/13/2027		325,000		325,000
Total							645,289
Leisure Time 0.04%
Carnival Corp. 2023 Term Loan B	8.319% (1 mo. USD Term SOFR + 3.00%	)	8/8/2027		54,588		54,735
Lodging 0.24%
Hilton Domestic Operating Co., Inc. 2023 Term Loan B3	7.179% (1 mo. USD Term SOFR + 1.75%	)	6/21/2028		291,646		292,501
Manufacturing 0.34%
DirecTV Financing LLC Term Loan	10.445% (1 mo. USD Term SOFR + 5.00%	)	8/2/2027		164,421		164,832
Virgin Media Bristol LLC USD Term Loan N	7.94% (1 mo. USD Term SOFR + 2.50%	)	1/31/2028		250,000		246,595
Total							411,427

See Notes to Schedule of Investments. 97

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Media 0.31%
Charter Communications Operating LLC 2019 Term Loan B2	7.076% (1 mo. USD Term SOFR + 1.75%	)	2/1/2027	$	383,114	$	383,455
Pharmaceuticals 0.15%
Elanco Animal Health, Inc. Term Loan B	7.176% (1 mo. USD Term SOFR + 1.75%	)	8/1/2027		181,493		181,054
Pipelines 0.09%
Buckeye Partners LP 2024 Term Loan B3	7.33% (1 mo. USD Term SOFR + 2.00%	)	11/1/2026		106,936		107,255
Real Estate Investment Trusts 0.51%
Invitation Homes Operating Partnership LP 2020 Term Loan A	6.427% (1 mo. USD Term SOFR + 1.00%	)	1/31/2025		628,665		624,736
Retail 0.18%
KFC Holding Co. 2021 Term Loan B	7.191% (1 mo. USD Term SOFR + 1.75%	)	3/15/2028		223,720		223,870
Software 0.22%
SS&C European Holdings SARL 2018 Term Loan B4 (Luxembourg)(b)	–	(e)	4/16/2025		133,326		133,490
SS&C Technologies, Inc. 2018 Term Loan B3	–	(e)	4/16/2025		140,894		141,067
Total							274,557
Total Floating Rate Loans (cost $5,658,385)							5,654,579
FOREIGN GOVERNMENT OBLIGATIONS(b) 0.09%
Romania
Romania Government International Bonds† (cost $109,435)	5.875%		1/30/2029		110,000		110,179
GOVERNMENT SPONSORED ENTERPRISES COLLATERALIZED MORTGAGE OBLIGATIONS 0.05%
Government National Mortgage Association Series 2014-112 Class A	3.00%	#(f)	1/16/2048		2,255		2,009
Government National Mortgage Association Series 2014-78 Class IO(g)	0.007%	#(f)	3/16/2056		10,689		9
Government National Mortgage Association Series 2017-23 Class AB	2.60%		12/16/2057		10,770		9,492
Government National Mortgage Association Series 2017-44 Class AD	2.65%		11/17/2048		8,794		8,294
Government National Mortgage Association Series 2017-53 Class B	2.75%		3/16/2050		28,817		25,625

98 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
GOVERNMENT SPONSORED ENTERPRISES COLLATERALIZED MORTGAGE OBLIGATIONS (continued)
Government National Mortgage Association Series 2017-61 Class A	2.60%		8/16/2058	$	6,835	$	6,385
Government National Mortgage Association Series 2017-76 Class AS	2.65%		11/16/2050		13,909		12,241
Total Government Sponsored Enterprises Collateralized Mortgage Obligations (cost $71,092)							64,055
GOVERNMENT SPONSORED ENTERPRISES PASS-THROUGHS 0.03%
Federal Home Loan Mortgage Corp.	5.823% (1Yr. RFUCCT + 1.85%	)#	6/1/2042		1,463		1,505
Federal Home Loan Mortgage Corp.	5.876% (1Yr. RFUCCT + 1.79%	)#	6/1/2041		3,569		3,674
Federal Home Loan Mortgage Corp.	6.143% (1Yr. RFUCCT + 1.89%	)#	12/1/2040		1,966		1,974
Federal National Mortgage Association	5.655% (1Yr. RFUCCT + 1.78%	)#	10/1/2036		8,031		8,261
Federal National Mortgage Association	5.866% (1Yr. RFUCCT + 1.72%	)#	6/1/2042		1,463		1,509
Federal National Mortgage Association	5.887% (1Yr. RFUCCT + 1.79%	)#	3/1/2042		1,559		1,609
Federal National Mortgage Association	6.048% (1Yr. RFUCCT + 1.81%	)#	1/1/2042		7,828		8,066
Federal National Mortgage Association	6.059% (1Yr. RFUCCT + 1.81%	)#	10/1/2040		122		126
Federal National Mortgage Association	6.061% (1Yr. RFUCCT + 1.81%	)#	12/1/2040		234		241
Federal National Mortgage Association	6.076% (1Yr. RFUCCT + 1.82%	)#	12/1/2040		476		491
Federal National Mortgage Association	6.164% (1Yr. RFUCCT + 1.81%	)#	4/1/2040		4,510		4,645
Federal National Mortgage Association	7.517% (1Yr. RFUCCT + 1.60%	)#	10/1/2045		542		557
Federal National Mortgage Association	7.577% (1Yr. RFUCCT + 1.60%	)#	12/1/2045		944		971
Federal National Mortgage Association	7.687% (1Yr. RFUCCT + 1.60%	)#	12/1/2045		5,348		5,507
Total Government Sponsored Enterprises Pass-Throughs (cost $39,515)							39,136
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES 5.51%
Bank Series 2023-5YR2 Class A3	6.656%	#(f)	7/15/2056		150,000		158,374
Bank Series 2023-5YR4 Class A3	6.50%		12/15/2056		280,000		295,268
BBCMS Mortgage Trust Series 2018-TALL Class A†	6.245% (1 mo. USD Term SOFR + 0.92%	)#	3/15/2037		200,000		192,239

See Notes to Schedule of Investments. 99

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES (continued)
Benchmark Mortgage Trust Series 2024-V5 Class A3	5.805%		1/10/2057	$	120,000	$	123,676
Benchmark Mortgage Trust Series 2024-V6 Class A3(a)	5.926%		3/15/2029		600,000		619,988
BMO Mortgage Trust Series 2023-5C2 Class A3	7.055%	#(f)	11/15/2056		110,000		118,993
BX Commercial Mortgage Trust Series 2021-ACNT Class A†	6.29% (1 mo. USD Term SOFR + 0.96%	)#	11/15/2038		137,892		136,626
BX Commercial Mortgage Trust Series 2021-XL2 Class A†	6.128% (1 mo. USD Term SOFR + 0.80%	)#	10/15/2038		156,386		155,315
BX Commercial Mortgage Trust Series 2024-XL4 Class A†	6.767% (1 mo. USD Term SOFR + 1.44%	)#	2/15/2039		180,000		180,493
BX Commercial Mortgage Trust Series 2024-XL5 Class A†	6.692% (1 mo. USD Term SOFR + 1.39%	)#	3/15/2041		380,000		380,755
BX Trust Series 2022-LBA6 Class A†	6.325% (1 mo. USD Term SOFR + 1.00%	)#	1/15/2039		150,000		149,318
BX Trust Series 2022-PSB Class A†	7.776% (1 mo. USD Term SOFR + 2.45%	)#	8/15/2039		174,252		175,558
BX Trust Series 2024-CNYN Class A†(a)	6.742% (1 mo. USD Term SOFR + 1.44%	)#	4/15/2029		200,000		200,313
BXHPP Trust Series 2021-FILM Class A†	6.09% (1 mo. USD Term SOFR + 0.76%	)#	8/15/2036		280,000		269,703
CFCRE Commercial Mortgage Trust Series 2016-C6 Class XA(g)	1.074%	#(f)	11/10/2049		172,386		3,570
CFCRE Commercial Mortgage Trust Series 2016-C7 Class XA(g)	0.638%	#(f)	12/10/2054		169,110		2,409
Citigroup Commercial Mortgage Trust Series 2015-GC27 Class AAB	2.944%		2/10/2048		875		870
Citigroup Commercial Mortgage Trust Series 2015-GC31 Class XA(g)	0.326%	#(f)	6/10/2048		853,581		2,511
Citigroup Commercial Mortgage Trust Series 2016-GC36 Class A5	3.616%		2/10/2049		280,000		267,663
Commercial Mortgage Pass-Through Certificates Series 2014-UBS5 Class XB1†(g)	0.075%	#(f)	9/10/2047		2,000,000		693
Commercial Mortgage Pass-Through Certificates Series 2014-CR19 Class A4	3.532%		8/10/2047		4,469		4,442
Commercial Mortgage Pass-Through Certificates Series 2014-UBS3 Class A4	3.819%		6/10/2047		184,000		183,095
Commercial Mortgage Pass-Through Certificates Series 2015-PC1 Class XA†(g)	0.373%	#(f)	7/10/2050		59,385		166

100 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES (continued)
Commercial Mortgage Pass-Through Certificates Series 2016-CD1 Class XA(g)	1.357%	#(f)	8/10/2049	$	45,349	$	974
Credit Suisse Mortgage Capital Certificates Trust Series 2014-USA Class X1†(g)	0.54%	#(f)	9/15/2037		978,382		4,458
Credit Suisse Mortgage Capital Certificates Trust Series 2021-NQM3 Class A1†	1.015%	#(f)	4/25/2066		47,998		39,231
CSAIL Commercial Mortgage Trust Series 2016-C6 Class XA(g)	1.856%	#(f)	1/15/2049		593,708		15,994
DBJPM Mortgage Trust Series 2016-C3 Class XA(g)	1.407%	#(f)	8/10/2049		157,712		3,979
DBWF Mortgage Trust Series 2015-LCM Class A1†	2.998%		6/10/2034		5,905		5,600
DBWF Mortgage Trust Series 2016-85T Class XA†(g)	0.014%	#(f)	12/10/2036		3,140,000		3,871
Federal Home Loan Mortgage Corp. STACR REMICS Notes Series 2023-DNA2 Class M1A†	7.42% (30 day USD SOFR Average + 2.10%	)#	4/25/2043		248,198		252,897
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2021-HQA3 Class M1†	6.17% (30 day USD SOFR Average + 0.85%	)#	9/25/2041		85,108		84,756
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2022-DNA4 Class M1A†	7.52% (30 day USD SOFR Average + 2.20%	)#	5/25/2042		191,860		195,289
Federal National Mortgage Association Connecticut Avenue Securities Trust Series 2022-R02 Class 2M1†	6.52% (30 day USD SOFR Average + 1.20%	)#	1/25/2042		119,579		119,812
Federal National Mortgage Association Connecticut Avenue Securities Trust Series 2022-R08 Class 1M1†	7.87% (30 day USD SOFR Average + 2.55%	)#	7/25/2042		229,938		236,153
Federal National Mortgage Association Connecticut Avenue Securities Trust Series 2023-R01 Class 1M1†	7.721% (30 day USD SOFR Average + 2.40%	)#	12/25/2042		248,885		255,736
Federal National Mortgage Association Connecticut Avenue Securities Trust Series 2023-R03 Class 2M1†	7.82% (30 day USD SOFR Average + 2.50%	)#	4/25/2043		120,354		122,771
GS Mortgage Securities Corp. Trust Series 2017-485L Class XB†(g)	0.111%	#(f)	2/10/2037		1,590,000		6,223

See Notes to Schedule of Investments. 101

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES (continued)
GS Mortgage Securities Corp. Trust Series 2021-ARDN Class A†	6.69% (1 mo. USD Term SOFR + 1.36%	)#	11/15/2036	$	100,000	$	98,438
GS Mortgage Securities Corp. Trust Series 2021-ROSS Class A†	6.591% (1 mo. USD Term SOFR + 1.26%	)#	5/15/2026		100,000		93,270
GS Mortgage Securities Corp. Trust Series 2021-ROSS Class H†	11.341% (1 mo. USD Term SOFR + 6.01%	)#	5/15/2026		100,000		33,537
GS Mortgage Securities Trust Series 2015-GS1 Class XB(g)	0.18%	#(f)	11/10/2048		1,082,000		3,761
HMH Trust Series 2017-NSS Class A†	3.062%		7/5/2031		100,000		84,015
HMH Trust Series 2017-NSS Class B†	3.343%		7/5/2031		100,000		68,044	(h)
HMH Trust Series 2017-NSS Class C†	3.787%		7/5/2031		100,000		54,251
HMH Trust Series 2017-NSS Class D†	4.723%		7/5/2031		100,000		25,937
Hudsons Bay Simon JV Trust Series 2015-HB7 Class XA7†(g)	1.252%	#(f)	8/5/2034		796,237		141
JP Morgan Chase Commercial Mortgage Securities Trust Series 2014-DSTY Class A†	3.429%		6/10/2027		200,000		71,034
JP Morgan Chase Commercial Mortgage Securities Trust Series 2016-JP4 Class XA(g)	0.57%	#(f)	12/15/2049		764,718		8,849
JP Morgan Chase Commercial Mortgage Securities Trust Series 2017-JP7 Class XA(g)	0.985%	#(f)	9/15/2050		867,248		19,811
JP Morgan Chase Commercial Mortgage Securities Trust Series 2018-PTC Class A†	6.823% (1 mo. USD Term SOFR + 1.50%	)#	4/15/2031		90,000		61,200
JP Morgan Chase Commercial Mortgage Securities Trust Series 2018-PTC Class B†	7.523% (1 mo. USD Term SOFR + 2.20%	)#	4/15/2031		24,000		14,628
JP Morgan Chase Commercial Mortgage Securities Trust Series 2018-PTC Class C†	7.923% (1 mo. USD Term SOFR + 2.60%	)#	4/15/2031		18,000		10,081
JP Morgan Chase Commercial Mortgage Securities Trust Series 2020-MKST Class E†	8.19% (1 mo. USD Term SOFR + 2.86%	)#	12/15/2036		420,000		60,875
JPMBB Commercial Mortgage Securities Trust Series 2014-C26 Class XA(g)	0.914%	#(f)	1/15/2048		591,732		1,256
JPMBB Commercial Mortgage Securities Trust Series 2015-C30 Class XA(g)	0.419%	#(f)	7/15/2048		676,094		2,798
KIND Trust Series 2021-KIND Class A†	6.395% (1 mo. USD Term SOFR + 1.06%	)#	8/15/2038		158,700		155,902
Life Mortgage Trust Series 2022-BMR2 Class A1†	6.621% (1 mo. USD Term SOFR + 1.30%	)#	5/15/2039		150,000		148,856

102 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES (continued)
LSTAR Commercial Mortgage Trust Series 2016-4 Class XA†(g)	1.66%	#(f)	3/10/2049	$	507,891	$	5,499
LSTAR Commercial Mortgage Trust Series 2017-5 Class A3†	4.50%		3/10/2050		43,230		42,611
Morgan Stanley Bank of America Merrill Lynch Trust Series 2015-C23 Class XA(g)	0.541%	#(f)	7/15/2050		344,399		1,522
Morgan Stanley Bank of America Merrill Lynch Trust Series 2016-C31 Class XA(g)	1.263%	#(f)	11/15/2049		771,313		18,491
Morgan Stanley Capital I Trust Series 2015-UBS8 Class ASB	3.626%		12/15/2048		3,270		3,222
Morgan Stanley Capital I Trust Series 2016-UB11 Class XB(g)	0.88%	#(f)	8/15/2049		1,000,000		18,698
MSCG Trust Series 2015-ALDR Class A1†	2.612%		6/7/2035		3,583		3,420
MTN Commercial Mortgage Trust Series 2022-LPFL Class A†	6.727% (1 mo. USD Term SOFR + 1.40%	)#	3/15/2039		300,000		297,213
Palisades Center Trust Series 2016-PLSD Class D†	4.737%		4/13/2033		77,000		1,628
Ready Capital Mortgage Financing LLC Series 2021-FL6 Class A†	6.394% (1 mo. USD Term SOFR + 1.06%	)#	7/25/2036		55,392		54,911
SG Commercial Mortgage Securities Trust Series 2019-787E Class X†(g)	0.305%	#(f)	2/15/2041		4,149,000		61,588
Shops at Crystals Trust Series 2016-CSTL Class XB†(g)	0.203%	#(f)	7/5/2036		1,000,000		4,385
SMRT Commercial Mortgage Trust Series 2022-MINI Class A†	6.326% (1 mo. USD Term SOFR + 1.00%	)#	1/15/2039		150,000		149,181
Verus Securitization Trust Series 2020-4 Class A1†	1.502%	(c)	5/25/2065		19,045		18,051
Verus Securitization Trust Series 2021-R2 Class A1†	0.918%	#(f)	2/25/2064		29,016		25,796
Verus Securitization Trust Series 2021-R3 Class A1†	1.02%	#(f)	4/25/2064		38,279		34,141
Wells Fargo Commercial Mortgage Trust Series 2015-C29 Class XB(g)	0.014%	#(f)	6/15/2048		2,000,000		1,138
Wells Fargo Commercial Mortgage Trust Series 2015-SG1 Class XA(g)	0.645%	#(f)	9/15/2048		794,824		4,694
Wells Fargo Commercial Mortgage Trust Series 2016-BNK1 Class XA(g)	1.71%	#(f)	8/15/2049		887,871		25,440
Total Non-Agency Commercial Mortgage-Backed Securities (cost $7,650,248)							6,758,095

See Notes to Schedule of Investments. 103

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
U.S. TREASURY OBLIGATIONS 0.63%
U.S. Treasury Inflation-Indexed Notes(i) (cost $761,126)	0.25%	1/15/2025	$	786,354	$	772,974
Total Long-Term Investments (cost $122,137,452)						121,116,846
SHORT-TERM INVESTMENTS 1.91%
COMMERCIAL PAPER 0.71%
Retail
Bayer Corp.†	6.372%	7/8/2024		500,000		491,954
Walgreens Boots Alliance, Inc.†	6.525%	4/18/2024		382,000		380,846
Total Commercial Paper (cost $872,788)						872,800
REPURCHASE AGREEMENTS 1.20%
Repurchase Agreement dated 3/28/2024, 5.150% due 4/1/2024 with Barclays Bank PLC collateralized by $1,042,000 of U.S. Treasury Bond at 3.875% due 8/15/2033; value: $1,020,000; proceeds: $1,000,572 (cost $1,000,000)				1,000,000		1,000,000
Repurchase Agreement dated 3/28/2024, 2.800% due 4/1/2024 with Fixed Income Clearing Corp. collateralized by $478,700 of U.S. Treasury Bond at 4.250% due 2/15/2054; value: $472,969; proceeds: $463,810 (cost $463,665)				463,665		463,665
Total Repurchase Agreements (cost $1,463,665)						1,463,665
Total Short-Term Investments (cost $2,336,453)						2,336,465
Total Investments in Securities 100.63% (cost $124,473,905)						123,453,311
Other Assets and Liabilities – Net(j) (0.63)%						(771,448	)
Net Assets 100.00%					$	122,681,863

CMT	Constant Maturity Rate.
IO	Interest Only.
LIBOR	London Interbank Offered Rate.
REITS	Real Estate Investment Trusts.
REMICS	Real Estate Mortgage Investment Conduits.
RFUCCT	Refinitiv USD IBOR Consumer Cash Fallbacks Term.
SOFR	Secured Overnight Financing Rate.
STACR	Structured Agency Credit Risk.
†	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 March 31, 2024, the total value of Rule 144A securities was $67,243,588, which represents 54.81% of net assets.
#	Variable rate security. The interest rate represents the rate in effect at March 31, 2024.
(a)	Securities purchased on a when-issued basis.
(b)	Foreign security traded in U.S. dollars.

104 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

(c)	Step Bond – Security with a predetermined schedule of interest rate changes.
(d)	Floating Rate Loans in which the Fund invests generally pay interest at rates which are periodically re-determined at a margin above the Secured Overnight Financing Rate (“SOFR”) or the prime rate offered by major U.S. banks. The rate(s) shown is the rate(s) in effect at March 31, 2024.
(e)	Interest Rate to be determined.
(f)	Interest rate is based on the weighted average interest rates of the underlying mortgages within the mortgage pool.
(g)	Interest-only security. The principal amount shown is a notional amount representing the outstanding principal of the underlying debt obligation(s). Holders of interest only securities do not receive principal payments on the underlying debt obligation(s).
(h)	Level 3 Investment as described in Note 2(b) in the Notes to Schedule of Investments. Security valued utilizing third party pricing information without adjustment. Such valuations are based on unobservable inputs. A significant change in third party information could result in a significantly lower or higher value of such Level 3 investments.
(i)	Treasury Inflation Protected Security. A U.S. Treasury Note or Bond that offers protection from inflation by paying a fixed rate of interest on principal amount that is adjusted for inflation based on the Consumer Price Index.
(j)	Other Assets and Liabilities - Net include net unrealized appreciation/depreciation on futures contracts and swap contracts as follows:

Centrally Cleared Interest Rate Swap Contracts at March 31, 2024:

Central Clearingparty	Periodic Payments to be Made By The Fund (Quarterly	)	Periodic Payments to be Received By The Fund (Quarterly	)	Termination Date	Notional Amount		Value/Unrealized Appreciation
Goldman Sachs(1)	3.872%		12-Month USD SOFR Index		5/31/2028	$	6,974,000			$50,379	(2)
Central Clearingparty	Periodic Payments to be Made By The Fund (Quarterly	)	Periodic Payments to be Received By The Fund (Quarterly	)	Termination Date	Notional Amount		Value/Unrealized Depreciation
Goldman Sachs(1)	4.258%		12-Month USD SOFR Index		3/25/2027	$	8,752,000		$	(159	)(3)
Goldman Sachs(1)	4.264%		12-Month USD SOFR Index		3/31/2026		7,387,000		(23,075		)
Goldman Sachs(1)	4.718%		12-Month USD SOFR Index		9/28/2025		8,568,000		(4,345		)
Goldman Sachs(1)	5.013%		12-Month USD SOFR Index		3/7/2025		13,055,000		(9,087		)(4)
Unrealized Depreciation on Centrally Cleared Interest Rate Swap Contracts									$	(36,666	)

SOFR     Secured Overnight Financing Rate.
(1)	Central clearinghouse: Chicago Mercantile Exchange (CME).
(2)	Unrealized appreciation on Centrally Cleared CPI Swap Contract is $75,020, which includes upfront payment of $(24,641). Upfront payments paid (received) by Central Clearing Party are presented net of amortization.
(3)	Unrealized depreciation on Centrally Cleared CPI Swap Contract is $280, which includes upfront payment of $121. Upfront payments paid (received) by Central Clearing Party are presented net of amortization.
(4)	Unrealized depreciation on Centrally Cleared CPI Swap Contract is $9,017, which includes upfront payment of $(70). Upfront payments paid (received) by Central Clearing Party are presented net of amortization.

See Notes to Schedule of Investments. 105

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

Centrally Cleared Consumer Price Index (“CPI”) Swap Contracts at March 31, 2024:

Swap Counterparty	Payments to be Made By The Fund at Termination Date	Payments to be Received By The Fund at Termination Date	Termination Date	Notional Amount		Value/Unrealized Appreciation
Goldman Sachs	2.079%	CPI Urban Consumer NSA	7/15/2024		$299,000		$2,342
Goldman Sachs	2.285%	CPI Urban Consumer NSA	7/15/2025		299,000		1,312

Centrally Cleared Consumer Price Index (“CPI”) Swap Contracts at March 31, 2024:

Swap Counterparty	Payments to be Made By The Fund at Termination Date	Payments to be Received By The Fund at Termination Date	Termination Date	Notional Amount		Value/Unrealized Appreciation
Goldman Sachs	2.548%	CPI Urban Consumer NSA	3/27/2025		$600,000		$	3,230
Goldman Sachs	4.145%	CPI Urban Consumer NSA	4/15/2024		581,000		6,578
Total Unrealized Appreciation on Centrally Cleared CPI Swap Contracts							$	13,462

NSA    Non-seasonally adjusted.

Futures Contracts at March 31, 2024:

Type	Expiration	Contracts	Position	Notional Amount			Notional Value			Unrealized Depreciation
U.S. 2-Year Treasury Note	June 2024	69	Long		$14,120,840			$14,109,422			$	(11,418	)
U.S. 5-Year Treasury Note	June 2024	93	Short		(9,930,631	)		(9,952,453	)		(21,822		)
Total Unrealized Depreciation on Futures Contracts											$	(33,240	)

106 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SERIES FUND, INC. – SHORT DURATION INCOME PORTFOLIO March 31, 2024

The following is a summary of the inputs used as of March 31, 2024 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1			Level 2			Level 3		Total
Long-Term Investments
Asset-Backed Securities	$	–		$	29,284,788		$	–	$	29,284,788
Corporate Bonds		–			78,433,040			–		78,433,040
Floating Rate Loans		–			5,654,579			–		5,654,579
Foreign Government Obligations		–			110,179			–		110,179
Government Sponsored Enterprises Collateralized Mortgage Obligations		–			64,055			–		64,055
Government Sponsored Enterprises Pass-Throughs		–			39,136			–		39,136
Non-Agency Commercial Mortgage-Backed Securities		–			6,690,051			68,044		6,758,095
U.S. Treasury Obligations		–			772,974			–		772,974
Short-Term Investments
Commercial Paper		–			872,800			–		872,800
Repurchase Agreements		–			1,463,665			–		1,463,665
Total	$	–		$	123,385,267		$	68,044	$	123,453,311
Other Financial Instruments
Centrally Cleared Interest Rate Swap Contracts
Assets	$	–		$	50,379		$	–	$	50,379
Liabilities		–			(36,666	)		–		(36,666	)
Centrally Cleared CPI Swap Contracts
Assets		–			13,462			–		13,462
Liabilities		–			–			–		–
Futures Contracts
Assets		–			–			–		–
Liabilities		(33,240	)		–			–		(33,240	)
Total	$	(33,240	)	$	27,175		$	–	$	(6,065	)

(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. When applicable, each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets. Management has determined not to provide a reconciliation as the balance of Level 3 investments was not considered to be material to the Fund’s net assets at the beginning or end of the period.

See Notes to Schedule of Investments. 107

Schedule of Investments (unaudited)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
LONG-TERM INVESTMENTS 110.15%
ASSET-BACKED SECURITIES 16.43%
Automobiles 5.63%
Bank of America Auto Trust Series 2023-1A Class A3†	5.53%	2/15/2028	$	1,640,000	$	1,648,689
CarMax Auto Owner Trust Series 2023-1 Class B	4.98%	1/16/2029		2,130,000		2,113,606
Carvana Auto Receivables Trust Series NP1 2020-N1A Class E†	5.20%	7/15/2027		1,500,000		1,469,709
Chase Auto Owner Trust Series 2024-1A Class A3†	5.13%	5/25/2029		2,675,000		2,680,382
Citizens Auto Receivables Trust Series 2023-2 Class A3†	5.83%	2/15/2028		3,575,000		3,609,373
Exeter Automobile Receivables Trust Series 2020-2A Class E†	7.19%	9/15/2027		2,380,000		2,398,131
First Investors Auto Owner Trust Series 2021-1A Class E†	3.35%	4/15/2027		1,000,000		962,901
Flagship Credit Auto Trust Series 2018-4 Class E†	5.51%	3/16/2026		1,244,445		1,243,434
Flagship Credit Auto Trust Series 2022-3 Class A3†	4.55%	4/15/2027		1,795,838		1,784,083
Flagship Credit Auto Trust Series 2023-3 Class C†	6.01%	7/16/2029		1,570,000		1,581,354
Ford Credit Auto Lease Trust Series 2023-A Class A3	4.94%	3/15/2026		2,750,000		2,740,834
Ford Credit Auto Lease Trust Series 2023-A Class B	5.29%	6/15/2026		1,505,000		1,499,120
GM Financial Automobile Leasing Trust Series 2023-1 Class B	5.51%	1/20/2027		1,300,000		1,297,121
Santander Consumer Auto Receivables Trust Series 2020-BA Class C†	1.29%	4/15/2026		453,107		451,691
Santander Consumer Auto Receivables Trust Series 2021-AA Class E†	3.28%	3/15/2027		1,386,000		1,319,027
Santander Drive Auto Receivables Trust 2023-2 Class C	5.47%	12/16/2030		1,470,000		1,467,723
Santander Drive Auto Receivables Trust Series 2020-3 Class D	1.64%	11/16/2026		946,014		934,113
Santander Drive Auto Receivables Trust Series 2022-7 Class C	6.69%	3/17/2031		2,470,000		2,521,384
SBNA Auto Receivables Trust Series 2024-A Class A3†	5.32%	12/15/2028		1,980,000		1,981,317
Westlake Automobile Receivables Trust Series 2020-3A Class E†	3.34%	6/15/2026		1,450,000		1,431,648
Westlake Automobile Receivables Trust Series 2023-1A Class C†	5.74%	8/15/2028		885,000		884,940
Total						36,020,580

108 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Credit Card 1.46%
Capital One Multi-Asset Execution Trust Series 2022-A1 Class A1	2.80%		3/15/2027	$	9,540,000	$	9,314,640
Other 9.34%
Affirm Asset Securitization Trust Series 2023-A Class 1A†	6.61%		1/18/2028		1,810,000		1,821,468
Affirm Asset Securitization Trust Series 2023-B Class A†	6.82%		9/15/2028		2,510,000		2,548,924
Affirm Asset Securitization Trust Series 2024-A Class A†	5.61%		2/15/2029		485,000		484,205
Arbor Realty Commercial Real Estate Notes Ltd. Series 2021-FL2 Class A†	6.54% (1 mo. USD Term SOFR + 1.21%	)#	5/15/2036		1,071,713		1,069,202
Arbor Realty Commercial Real Estate Notes Ltd. Series 2021-FL4 Class A†	6.79% (1 mo. USD Term SOFR + 1.46%	)#	11/15/2036		1,173,500		1,170,383
ARES XL CLO Ltd. Series 2016-40A Class A1RR†	6.446% (3 mo. USD Term SOFR + 1.13%	)#	1/15/2029		404,037		404,481
Avant Loans Funding Trust Series 2022-REV1 Class A†	6.54%		9/15/2031		2,409,288		2,407,402
Bain Capital Credit CLO Ltd. Series 2023-4A Class C†	8.323% (3 mo. USD Term SOFR + 2.90%	)#	10/21/2036		710,000		714,869
Bain Capital Credit CLO Ltd. Series 2023-4A Class D†	10.423% (3 mo. USD Term SOFR + 5.00%	)#	10/21/2036		1,330,000		1,354,815
Ballyrock CLO 23 Ltd. Series 2023-23A Class A1†	7.305% (3 mo. USD Term SOFR + 1.98%	)#	4/25/2036		1,950,000		1,959,144
Ballyrock CLO 25 Ltd. Series 2023-25A Class A2†	7.774% (3 mo. USD Term SOFR + 2.45%	)#	1/25/2036		1,270,000		1,277,524
Barings CLO Ltd. Series 2019-3A Class A1R†	6.649% (3 mo. USD Term SOFR + 1.33%	)#	4/20/2031		1,000,000		1,002,302
BlueMountain CLO XXXI Ltd. Series 2021-31A Class A1†	6.721% (3 mo. USD Term SOFR + 1.41%	)#	4/19/2034		1,370,000		1,367,259
Carlyle Global Market Strategies CLO Ltd. Series 2012-3A Class A1A2†	6.756% (3 mo. USD Term SOFR + 1.44%	)#	1/14/2032		765,554		766,881

See Notes to Schedule of Investments. 109

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Other (continued)
Carlyle U.S. CLO Ltd. Series 2021-1A Class A1†	6.716% (3 mo. USD Term SOFR + 1.40%	)#	4/15/2034	$	2,860,000	$	2,865,968
Carlyle U.S. CLO Ltd. Series 2023-2A Class C†	8.318% (3 mo. USD Term SOFR + 3.00%	)#	7/20/2036		1,100,000		1,108,174
Carlyle U.S. CLO Ltd. Series 2024-1A Class B†	7.294% (3 mo. USD Term SOFR + 2.00%	)#	4/15/2037		1,290,000		1,289,608
CIFC Funding Ltd. Series 2014-5A Class A1R2†	6.778% (3 mo. USD Term SOFR + 1.46%	)#	10/17/2031		640,000		641,718
CIFC Funding Ltd. Series 2021-1A Class B†	7.136% (3 mo. USD Term SOFR + 1.81%	)#	4/25/2033		650,000		652,097
Dryden 107 CLO Ltd. Series 2023-107A Class C†	8.307% (3 mo. USD Term SOFR + 3.00%	)#	8/15/2035		820,000		826,174
Elmwood CLO 24 Ltd. Series 2023-3A Class B†	7.694% (3 mo. USD Term SOFR + 2.35%	)#	12/11/2033		1,210,000		1,217,551
GoldenTree Loan Management U.S. CLO 19 Ltd. Series 2014-19A Class C†	7.671% (3 mo. USD Term SOFR + 2.35%	)#	4/20/2037		940,000		941,171
GoldenTree Loan Management U.S. CLO Ltd. Series 2022-16A Class BR†	7.857% (3 mo. USD Term SOFR + 2.50%	)#	1/20/2034		1,430,000		1,438,891
Lending Funding Trust Series 2020-2A Class A†	2.32%		4/21/2031		1,840,000		1,710,807
Lendmark Funding Trust Series 2021-1A Class A†	1.90%		11/20/2031		1,400,000		1,282,098
LoanCore Issuer Ltd. Series 2022-CRE7 Class A†	6.869% (30 day USD SOFR Average + 1.55%	)#	1/17/2037		1,199,833		1,189,430
Logan CLO I Ltd. Series 2021-1A Class A†	6.739% (3 mo. USD Term SOFR + 1.42%	)#	7/20/2034		1,040,000		1,039,512
Madison Park Funding Ltd. Series 2024-58A Class D†(a)	9.03% (3 mo. USD Term SOFR + 3.65%	)#	4/25/2037		960,000		963,600	(b)
Madison Park Funding XI Ltd. Series 2013-11A Class AR2†	6.477% (3 mo. USD Term SOFR + 1.16%	)#	7/23/2029		1,623,252		1,623,738

110 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Other (continued)
Magnetite XXXVIII Ltd. Series 2024-38A Class B†	7.294% (3 mo. USD Term SOFR + 2.00%	)#	4/15/2037	$	1,210,000	$	1,210,000
Marble Point CLO XVII Ltd. Series 2020-1A Class A†	6.879% (3 mo. USD Term SOFR + 1.56%	)#	4/20/2033		1,134,614		1,132,967
Marlette Funding Trust Series 2020-2A Class D†	4.65%		9/16/2030		510,047		509,228
MF1 LLC Series 2024-FL14 Class A†	7.063% (1 mo. USD Term SOFR + 1.74%	)#	3/19/2039		1,430,000		1,433,132
Mountain View CLO LLC Series 2017-1A Class AR†	6.666% (3 mo. USD Term SOFR + 1.35%	)#	10/16/2029		346,915		346,918
Neuberger Berman CLO XVII Ltd. Seires 2014-17A Class BR2†	7.079% (3 mo. USD Term SOFR + 1.76%	)#	4/22/2029		1,390,000		1,395,506
OCP CLO Ltd. Series 2014-7A Class A1RR†	6.699% (3 mo. USD Term SOFR + 1.38%	)#	7/20/2029		662,941		664,230
OneMain Financial Issuance Trust Series 2020-2A Class C†	2.76%		9/14/2035		2,745,000		2,448,576
Peebles Park CLO Ltd. Series 2024-1A Class B1†	7.304% (3 mo. USD Term SOFR + 2.00%	)#	4/21/2037		990,000		990,731
Regatta XXVII Funding Ltd. Series 2024-1A Class B†	7.296% (3 mo. USD Term SOFR + 2.00%	)#	4/26/2037		1,020,000		1,019,575
RR Ltd. Series 2022-24A Class A2R†	7.747% (3 mo. USD Term SOFR + 2.40%	)#	1/15/2036		1,410,000		1,418,710
SCF Equipment Leasing LLC Series 2019-2A Class C†	3.11%		6/21/2027		976,701		970,046
SEB Funding LLC Series 2021-1A Class A2†	4.969%		1/30/2052		1,052,363		994,179
Signal Peak CLO 8 Ltd. Series 2020-8A Class A†	6.849% (3 mo. USD Term SOFR + 1.53%	)#	4/20/2033		2,004,915		2,003,581
Sunrun Demeter Issuer LLC Series 2021-2A Class A†	2.27%		1/30/2057		706,294		577,725
Texas Debt Capital CLO Ltd. Series 2024-1A Class B†	7.279% (3 mo. USD Term SOFR + 1.95%	)#	4/22/2037		1,610,000		1,609,893
THL Credit Wind River CLO Ltd. Series 2013-2A Class AR2†	6.56% (3 mo. USD Term SOFR + 1.26%	)#	10/18/2030		898,502		900,565

See Notes to Schedule of Investments. 111

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Other (continued)
Valley Stream Park CLO Ltd. Series 2022-1A Class BR†	7.568% (3 mo. USD Term SOFR + 2.25%	)#	10/20/2034	$	1,180,000	$	1,179,912
Voya CLO Ltd. Series 2018-1A Class A2†	6.871% (3 mo. USD Term SOFR + 1.56%	)#	4/19/2031		800,000		801,211
Voya CLO Ltd. Series 2018-2A Class A1†	6.576% (3 mo. USD Term SOFR + 1.26%	)#	7/15/2031		1,010,144		1,010,469
Total							59,756,550
Student Loan 0.00%
Towd Point Asset Trust Series 2018-SL1 Class A†	6.044% (1 mo. USD Term SOFR + 0.71%	)#	1/25/2046		7,141		7,138
Total Asset-Backed Securities (cost $105,836,514)							105,098,908
CORPORATE BONDS 45.94%
Advertising 0.10%
Clear Channel Outdoor Holdings, Inc.†	7.50%		6/1/2029		766,000		634,184
Aerospace/Defense 0.21%
BAE Systems PLC (United Kingdom)†(c)	5.30%		3/26/2034		1,322,000		1,329,128
Agriculture 1.24%
BAT Capital Corp.	3.222%		8/15/2024		1,937,000		1,918,179
BAT Capital Corp.	5.834%		2/20/2031		601,000		606,493
BAT Capital Corp.	6.343%		8/2/2030		1,635,000		1,704,400
Philip Morris International, Inc.	5.625%		11/17/2029		1,700,000		1,751,552
Viterra Finance BV (Netherlands)†(c)	4.90%		4/21/2027		2,000,000		1,966,656
Total							7,947,280
Airlines 0.33%
American Airlines, Inc.†	7.25%		2/15/2028		624,000		634,186
British Airways Pass-Through Trust Class A (United Kingdom)†(c)	4.25%		5/15/2034		1,010,413		944,856
VistaJet Malta Finance PLC/Vista Management Holding, Inc. (Malta)†(c)	7.875%		5/1/2027		656,000		555,291
Total							2,134,333
Apparel 0.25%
Tapestry, Inc.	7.35%		11/27/2028		1,522,000		1,604,639

112 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Auto Manufacturers 0.97%
Ford Motor Credit Co. LLC	3.375%		11/13/2025	$	798,000	$	768,102
Ford Motor Credit Co. LLC	4.134%		8/4/2025		732,000		715,711
Ford Motor Credit Co. LLC	6.125%		3/8/2034		1,316,000		1,323,857
Hyundai Capital America†	1.80%		10/15/2025		1,025,000		969,224
Hyundai Capital America†	5.40%		1/8/2031		934,000		938,408
Hyundai Capital America†	5.80%		6/26/2025		711,000		712,869
JB Poindexter & Co., Inc.†	8.75%		12/15/2031		742,000		767,882
Total							6,196,053
Banks 12.53%
ABN AMRO Bank NV (Netherlands)†(c)	3.324% (5 yr. CMT + 1.90%	)#	3/13/2037		800,000		651,013
Bank of America Corp.	2.087% (SOFR + 1.06%	)#	6/14/2029		3,203,000		2,831,357
Bank of America Corp.	3.97% (3 mo. USD Term SOFR + 1.33%	)#	3/5/2029		3,996,000		3,820,912
Bank of New York Mellon Corp.	4.967% (SOFR + 1.61%	)#	4/26/2034		1,059,000		1,039,993
BankUnited, Inc.	5.125%		6/11/2030		1,140,000		1,058,492
Barclays PLC (United Kingdom)(c)	3.932% (3 mo. USD LIBOR + 1.61%	)#	5/7/2025		2,200,000		2,195,580
BBVA Bancomer SA†	8.125% (5 yr. CMT + 4.21%	)#	1/8/2039		1,150,000		1,192,200
BNP Paribas SA (France)†(c)	2.219% (SOFR + 2.07%	)#	6/9/2026		1,914,000		1,841,019
BNP Paribas SA (France)†(c)	4.375% (5 yr. USD Swap + 1.48%	)#	3/1/2033		1,296,000		1,230,096
BNP Paribas SA (France)†(c)	5.738% (SOFR + 1.88%	)#	2/20/2035		1,217,000		1,226,033
Citigroup, Inc.	3.887% (3 mo. USD Term SOFR + 1.82%	)#	1/10/2028		2,186,000		2,108,546
Citigroup, Inc.	3.98% (3 mo. USD Term SOFR + 1.60%	)#	3/20/2030		4,576,000		4,313,100
Citigroup, Inc.	4.14% (SOFR + 1.37%	)#	5/24/2025		605,000		603,321
Citigroup, Inc.	5.827% (SOFR + 2.06%	)#	2/13/2035		1,622,000		1,606,537
Citizens Bank NA	4.119% (SOFR + 1.40%	)#	5/23/2025		1,375,000		1,369,695
Danske Bank AS (Denmark)†(c)	6.466% (1 yr. CMT + 2.10%	)#	1/9/2026		1,570,000		1,576,018

See Notes to Schedule of Investments. 113

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Banks (continued)
First-Citizens Bank & Trust Co.	2.969% (3 mo. USD Term SOFR + 1.72%	)#	9/27/2025	$	1,271,000	$	1,244,691
Freedom Mortgage Corp.†	12.25%		10/1/2030		556,000		612,058
Intesa Sanpaolo SpA (Italy)†(c)	6.625%		6/20/2033		1,782,000		1,850,570
JPMorgan Chase & Co.	3.54% (3 mo. USD Term SOFR + 1.64%	)#	5/1/2028		1,436,000		1,372,207
JPMorgan Chase & Co.	3.845% (SOFR + 0.98%	)#	6/14/2025		2,186,000		2,176,573
M&T Bank Corp.	5.053% (SOFR + 1.85%	)#	1/27/2034		978,000		909,818
Macquarie Bank Ltd. (Australia)†(c)	3.624%		6/3/2030		516,000		459,225
Macquarie Group Ltd. (Australia)†(c)	2.691% (SOFR + 1.44%	)#	6/23/2032		2,044,000		1,704,182
Macquarie Group Ltd. (Australia)†(c)	4.654% (3 mo. USD LIBOR + 1.73%	)#	3/27/2029		1,931,000		1,886,547
Mitsubishi UFJ Financial Group, Inc. (Japan)(c)	5.541% (1 yr. CMT + 1.50%	)#	4/17/2026		760,000		760,022
Morgan Stanley	4.21% (SOFR + 1.61%	)#	4/20/2028		912,000		886,541
Morgan Stanley	4.431% (3 mo. USD Term SOFR + 1.89%	)#	1/23/2030		5,916,000		5,731,313
Morgan Stanley	5.297% (SOFR + 2.62%	)#	4/20/2037		907,000		870,808
NatWest Group PLC (United Kingdom)(c)	5.808% (1 yr. CMT + 1.95%	)#	9/13/2029		808,000		820,857
NatWest Group PLC (United Kingdom)(c)	7.472% (1 yr. CMT + 2.85%	)#	11/10/2026		1,205,000		1,238,282
Royal Bank of Canada (Canada)(c)	6.00%		11/1/2027		1,456,000		1,505,470
Truist Financial Corp.	5.711% (SOFR + 1.92%	)#	1/24/2035		1,332,000		1,338,373
U.S. Bancorp	4.839% (SOFR + 1.60%	)#	2/1/2034		1,407,000		1,336,727
U.S. Bancorp	4.967% (SOFR + 2.11%	)#	7/22/2033		2,235,000		2,114,000
U.S. Bancorp	5.678% (SOFR + 1.86%	)#	1/23/2035		1,349,000		1,362,694
UBS AG (Switzerland)(c)	5.125%		5/15/2024		1,399,000		1,396,207
UBS Group AG (Switzerland)†(c)	1.364% (1 yr. CMT + 1.08%	)#	1/30/2027		1,127,000		1,043,359
UBS Group AG (Switzerland)†(c)	1.494% (1 yr. CMT + 0.85%	)#	8/10/2027		1,717,000		1,561,783

114 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Banks (continued)
UBS Group AG (Switzerland)†(c)	4.703% (1 yr. CMT + 2.05%	)#	8/5/2027	$	869,000	$	852,939
UBS Group AG (Switzerland)†(c)	4.988% (1 yr. CMT + 2.40%	)#	8/5/2033		1,507,000		1,449,371
UBS Group AG (Switzerland)†(c)	6.327% (1 yr. CMT + 1.60%	)#	12/22/2027		662,000		676,491
UBS Group AG (Switzerland)†(c)	6.373% (SOFR + 3.34%	)#	7/15/2026		2,400,000		2,417,664
UBS Group AG (Switzerland)†(c)	6.442% (SOFR + 3.70%	)#	8/11/2028		2,000,000		2,059,885
Wachovia Corp.	7.574%	(d)	8/1/2026		660,000		691,266
Wells Fargo & Co.	2.188% (SOFR + 2.00%	)#	4/30/2026		1,422,000		1,369,776
Wells Fargo & Co.	2.393% (SOFR + 2.10%	)#	6/2/2028		3,925,000		3,593,630
Wells Fargo & Co.	2.406% (3 mo. USD Term SOFR + 1.09%	)#	10/30/2025		1,573,000		1,543,250
Wells Fargo & Co.	3.584% (3 mo. USD Term SOFR + 1.57%	)#	5/22/2028		1,873,000		1,781,262
Wells Fargo & Co.	5.389% (SOFR + 2.02%	)#	4/24/2034		412,000		409,579
Yapi ve Kredi Bankasi AS (Turkey)†(c)	9.25% (5 yr. CMT + 5.28%	)#	1/17/2034		475,000		489,307
Total							80,180,639
Beverages 0.35%
Bacardi Ltd./Bacardi-Martini BV†	5.40%		6/15/2033		1,259,000		1,249,762
Constellation Brands, Inc.	4.80%		1/15/2029		1,008,000		999,937
Total							2,249,699
Biotechnology 0.06%
Baxalta, Inc.	4.00%		6/23/2025		375,000		369,029
Building Materials 0.20%
Smyrna Ready Mix Concrete LLC†	6.00%		11/1/2028		631,000		617,485
Standard Industries, Inc.†	4.375%		7/15/2030		719,000		646,554
Total							1,264,039
Chemicals 0.87%
Celanese U.S. Holdings LLC	6.05%		3/15/2025		2,042,000		2,046,441
CVR Partners LP/CVR Nitrogen Finance Corp.†	6.125%		6/15/2028		649,000		624,364
International Flavors & Fragrances, Inc.†	1.23%		10/1/2025		2,351,000		2,201,312

See Notes to Schedule of Investments. 115

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Chemicals (continued)
Rain Carbon, Inc.†	12.25%		9/1/2029	$	645,000	$	669,876
Rain CII Carbon LLC/CII Carbon Corp.†	7.25%		4/1/2025		14,000		13,718
Total							5,555,711
Coal 0.10%
SunCoke Energy, Inc.†	4.875%		6/30/2029		698,000		632,701
Commercial Services 0.75%
Adani Ports & Special Economic Zone Ltd. (India)(c)	4.00%		7/30/2027		670,000		615,467
Allied Universal Holdco LLC†	7.875%		2/15/2031		638,000		646,962
Allied Universal Holdco LLC/Allied Universal Finance Corp.†	6.00%		6/1/2029		749,000		645,308
ERAC USA Finance LLC†	5.00%		2/15/2029		1,355,000		1,358,051
Global Payments, Inc.	4.95%		8/15/2027		1,579,000		1,567,281
Total							4,833,069
Computers 0.28%
Leidos, Inc.	5.75%		3/15/2033		825,000		846,089
McAfee Corp.†	7.375%		2/15/2030		1,005,000		922,732
Total							1,768,821
Diversified Financial Services 2.22%
Aircastle Ltd.†	2.85%		1/26/2028		1,114,000		1,000,642
Aviation Capital Group LLC†	1.95%		1/30/2026		812,000		758,319
Aviation Capital Group LLC†	5.50%		12/15/2024		1,928,000		1,921,086
Aviation Capital Group LLC†	6.375%		7/15/2030		1,471,000		1,515,786
Avolon Holdings Funding Ltd. (Ireland)†(c)	2.125%		2/21/2026		3,181,000		2,965,021
Avolon Holdings Funding Ltd. (Ireland)†(c)	4.25%		4/15/2026		1,300,000		1,255,170
Capital One Financial Corp.	5.70% (SOFR + 1.91%	)#	2/1/2030		880,000		887,709
GGAM Finance Ltd. (Ireland)†(c)	8.00%		2/15/2027		608,000		628,152
LPL Holdings, Inc.†	4.00%		3/15/2029		1,291,000		1,187,700
Navient Corp.	4.875%		3/15/2028		685,000		639,082
Neuberger Berman Group LLC/Neuberger Berman Finance Corp.†	4.50%		3/15/2027		913,000		886,021
Neuberger Berman Group LLC/Neuberger Berman Finance Corp.†	4.875%		4/15/2045		677,000		549,835
Total							14,194,523
Electric 3.76%
AES Corp.†	3.95%		7/15/2030		1,138,000		1,038,112
Alfa Desarrollo SpA (Chile)†(c)	4.55%		9/27/2051		1,184,563		906,105

116 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Electric (continued)
Appalachian Power Co.	5.65%		4/1/2034	$	1,003,000	$	1,012,734
Ausgrid Finance Pty. Ltd. (Australia)†(c)	4.35%		8/1/2028		1,320,000		1,269,341
Constellation Energy Generation LLC	6.25%		10/1/2039		1,303,000		1,373,756
Electricite de France SA (France)†(c)	6.25%		5/23/2033		1,871,000		1,961,837
Entergy Louisiana LLC	5.70%		3/15/2054		960,000		977,358
Indianapolis Power & Light Co.†	5.65%		12/1/2032		1,762,000		1,796,841
IPALCO Enterprises, Inc.†	5.75%		4/1/2034		870,000		867,763
Minejesa Capital BV (Netherlands)†(c)	4.625%		8/10/2030		1,049,744		998,914
Minejesa Capital BV (Netherlands)(c)	5.625%		8/10/2037		406,000		369,689
Narragansett Electric Co.†	5.35%		5/1/2034		1,005,000		1,015,241
National Grid PLC (United Kingdom)(c)	5.809%		6/12/2033		1,858,000		1,899,248
NextEra Energy Operating Partners LP†	7.25%		1/15/2029		736,000		753,909
NRG Energy, Inc.†	4.45%		6/15/2029		537,000		508,122
Oncor Electric Delivery Co. LLC	5.65%		11/15/2033		1,183,000		1,231,363
Southern Co.	4.475%	(d)	8/1/2024		2,400,000		2,388,305
Vistra Operations Co. LLC†	3.55%		7/15/2024		3,061,000		3,039,277
Vistra Operations Co. LLC†	7.75%		10/15/2031		591,000		619,374
Total							24,027,289
Energy-Alternate Sources 0.15%
Greenko Dutch BV (Netherlands)†(c)	3.85%		3/29/2026		1,043,400		982,778
Engineering & Construction 0.43%
Cellnex Finance Co. SA (Spain)†(c)	3.875%		7/7/2041		1,687,000		1,325,171
IRB Infrastructure Developers Ltd. (India)†(c)	7.11%		3/11/2032		776,000		787,640
Weekley Homes LLC/Weekley Finance Corp.†	4.875%		9/15/2028		690,000		638,632
Total							2,751,443
Entertainment 0.35%
Cinemark USA, Inc.†	5.875%		3/15/2026		531,000		524,648
Jacobs Entertainment, Inc.†	6.75%		2/15/2029		609,000		592,128
Warnermedia Holdings, Inc.	3.788%		3/15/2025		1,114,000		1,093,577
Total							2,210,353
Environmental Control 0.10%
Veralto Corp.†	5.45%		9/18/2033		641,000		649,302
Food 0.10%
NBM U.S. Holdings, Inc.	7.00%		5/14/2026		611,000		613,822

See Notes to Schedule of Investments. 117

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
Gas 0.66%
CenterPoint Energy Resources Corp.	4.40%	7/1/2032	$	1,443,000	$	1,374,515
National Fuel Gas Co.	5.50%	1/15/2026		1,622,000		1,620,481
Southwest Gas Corp.	4.05%	3/15/2032		1,373,000		1,261,106
Total						4,256,102
Hand/Machine Tools 0.21%
Regal Rexnord Corp.†	6.05%	2/15/2026		1,336,000		1,343,605
Health Care-Products 1.04%
GE HealthCare Technologies, Inc.	5.65%	11/15/2027		2,613,000		2,661,794
Revvity, Inc.	0.85%	9/15/2024		1,605,000		1,567,999
Solventum Corp.†	5.45%	3/13/2031		1,284,000		1,281,113
Solventum Corp.†	5.60%	3/23/2034		1,160,000		1,164,313
Total						6,675,219
Health Care-Services 1.69%
Centene Corp.	2.45%	7/15/2028		2,405,000		2,135,132
Centene Corp.	3.375%	2/15/2030		2,313,000		2,048,327
Centene Corp.	4.25%	12/15/2027		869,000		829,225
CHS/Community Health Systems, Inc.†	5.25%	5/15/2030		1,132,000		924,032
DaVita, Inc.†	4.625%	6/1/2030		708,000		634,328
Humana, Inc.	1.35%	2/3/2027		1,608,000		1,448,854
Humana, Inc.	5.875%	3/1/2033		280,000		289,054
LifePoint Health, Inc.†	9.875%	8/15/2030		586,000		613,713
Molina Healthcare, Inc.†	4.375%	6/15/2028		640,000		602,124
UnitedHealth Group, Inc.	5.375%	4/15/2054		1,284,000		1,306,866
Total						10,831,655
Insurance 0.72%
Assurant, Inc.	2.65%	1/15/2032		595,000		489,243
GA Global Funding Trust†	3.85%	4/11/2025		1,689,000		1,657,868
Howden U.K. Refinance PLC/Howden U.K. Refinance 2 PLC/Howden U.S. Refinance LLC (United Kingdom)†(c)	7.25%	2/15/2031		708,000		711,407
HUB International Ltd.†	7.375%	1/31/2032		493,000		496,628
Metropolitan Life Global Funding I†	4.05%	8/25/2025		252,000		248,008
New York Life Global Funding†	4.55%	1/28/2033		1,027,000		991,805
Total						4,594,959

118 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
Internet 0.38%
EquipmentShare.com, Inc.†	9.00%	5/15/2028	$	895,000	$	922,961
Prosus NV (Netherlands)†(c)	3.257%	1/19/2027		1,660,000		1,539,283
Total						2,462,244
Leisure Time 0.26%
Carnival Corp.†	6.00%	5/1/2029		634,000		625,970
Royal Caribbean Cruises Ltd.†	6.25%	3/15/2032		411,000		414,533
Royal Caribbean Cruises Ltd.†	7.25%	1/15/2030		583,000		606,137
Total						1,646,640
Lodging 0.30%
Genting New York LLC/GENNY Capital, Inc.†	3.30%	2/15/2026		669,000		642,154
MGM China Holdings Ltd. (Macau)(c)	4.75%	2/1/2027		650,000		619,774
Wynn Macau Ltd. (Macau)†(c)	5.625%	8/26/2028		670,000		636,514
Total						1,898,442
Machinery-Diversified 0.36%
nVent Finance SARL (Luxembourg)(c)	4.55%	4/15/2028		2,361,000		2,296,317
Media 0.78%
CCO Holdings LLC/CCO Holdings Capital Corp.†	4.75%	3/1/2030		700,000		601,486
CSC Holdings LLC†	11.75%	1/31/2029		618,000		619,350
Directv Financing LLC/Directv Financing Co.-Obligor, Inc.†	5.875%	8/15/2027		658,000		622,903
FactSet Research Systems, Inc.	3.45%	3/1/2032		2,105,000		1,860,422
Globo Comunicacao e Participacoes SA (Brazil)†(c)	4.875%	1/22/2030		750,000		656,682
Gray Television, Inc.†	7.00%	5/15/2027		680,000		632,979
Total						4,993,822
Mining 0.70%
FMG Resources August 2006 Pty. Ltd. (Australia)†(c)	4.375%	4/1/2031		701,000		626,992
Freeport Indonesia PT (Indonesia)(c)	6.20%	4/14/2052		690,000		686,480
Glencore Funding LLC†	4.875%	3/12/2029		1,115,000		1,098,014
Glencore Funding LLC†(a)	5.634%	4/4/2034		1,449,000		1,453,637
Glencore Funding LLC†	6.375%	10/6/2030		570,000		601,833
Total						4,466,956
Miscellaneous Manufacturing 0.10%
LSB Industries, Inc.†	6.25%	10/15/2028		646,000		622,393
Multi-National 0.71%
Inter-American Investment Corp.	4.25%	2/14/2029		4,583,000		4,539,497

See Notes to Schedule of Investments. 119

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date	Principal Amount		Fair Value
Oil & Gas 4.35%
Antero Resources Corp.†	7.625%	2/1/2029	$	1,160,000	$	1,192,339
Apache Corp.	4.25%	1/15/2030		709,000		657,043
Baytex Energy Corp. (Canada)†(c)	8.50%	4/30/2030		838,000		875,771
CITGO Petroleum Corp.†	8.375%	1/15/2029		618,000		649,834
Civitas Resources, Inc.†	8.375%	7/1/2028		884,000		931,702
CNX Resources Corp.†	6.00%	1/15/2029		645,000		632,132
Comstock Resources, Inc.†	6.75%	3/1/2029		968,000		923,997
Continental Resources, Inc.†	5.75%	1/15/2031		4,100,000		4,078,214
Cosan Luxembourg SA (Luxembourg)†(c)	7.25%	6/27/2031		545,000		556,955
Coterra Energy, Inc.	5.60%	3/15/2034		1,563,000		1,575,362
Crescent Energy Finance LLC†	9.25%	2/15/2028		876,000		925,696
Diamond Foreign Asset Co./Diamond Finance LLC (Cayman Islands)†(c)	8.50%	10/1/2030		592,000		625,231
Ecopetrol SA (Colombia)(c)	8.375%	1/19/2036		947,000		956,512
EQT Corp.	5.75%	2/1/2034		983,000		980,370
EQT Corp.	7.00%	2/1/2030		3,141,000		3,339,530
Occidental Petroleum Corp.	6.625%	9/1/2030		2,364,000		2,507,164
Ovintiv, Inc.	6.50%	2/1/2038		1,193,000		1,244,183
Patterson-UTI Energy, Inc.	3.95%	2/1/2028		507,000		479,523
Petroleos Mexicanos (Mexico)(c)	6.70%	2/16/2032		1,540,000		1,281,692
Rockcliff Energy II LLC†	5.50%	10/15/2029		661,000		619,169
Transocean, Inc.†	8.00%	2/1/2027		922,000		915,781
Valaris Ltd.†	8.375%	4/30/2030		591,000		610,138
Vital Energy, Inc.†	7.875%	4/15/2032		640,000		650,658
Vital Energy, Inc.	10.125%	1/15/2028		577,000		605,867
Total						27,814,863
Oil & Gas Services 0.10%
Kodiak Gas Services LLC†	7.25%	2/15/2029		627,000		639,072
Packaging & Containers 0.34%
Clydesdale Acquisition Holdings, Inc.†	8.75%	4/15/2030		975,000		958,995
LABL, Inc.†	9.50%	11/1/2028		575,000		582,363
Mauser Packaging Solutions Holding Co.†	9.25%	4/15/2027		632,000		627,680
Total						2,169,038
Pharmaceuticals 0.97%
Bayer U.S. Finance LLC†	6.375%	11/21/2030		1,065,000		1,089,548
Cigna Group	2.40%	3/15/2030		611,000		527,935
CVS Health Corp.	1.75%	8/21/2030		1,631,000		1,340,451

120 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Pharmaceuticals (continued)
CVS Health Corp.	3.25%		8/15/2029	$	3,378,000	$	3,099,816
CVS Health Corp.	5.05%		3/25/2048		151,000		137,226
Total							6,194,976
Pipelines 2.25%	��
Cheniere Energy Partners LP	3.25%		1/31/2032		692,000		590,016
Columbia Pipeline Group, Inc.	4.50%		6/1/2025		845,000		833,338
Eastern Gas Transmission & Storage, Inc.	3.00%		11/15/2029		846,000		757,185
EIG Pearl Holdings SARL (Luxembourg)†(c)	3.545%		8/31/2036		1,650,000		1,412,212
Enbridge, Inc. (Canada)(c)	6.20%		11/15/2030		657,000		696,441
Enbridge, Inc. (Canada)(c)	8.50% (5 yr. CMT + 4.43%	)#	1/15/2084		1,449,000		1,578,012
EQM Midstream Partners LP†	7.50%		6/1/2030		580,000		620,522
Galaxy Pipeline Assets Bidco Ltd. (United Arab Emirates)†(c)	3.25%		9/30/2040		1,813,000		1,384,969
Genesis Energy LP/Genesis Energy Finance Corp.	8.25%		1/15/2029		607,000		623,657
Kinder Morgan Energy Partners LP	4.25%		9/1/2024		1,360,000		1,351,423
NGL Energy Operating LLC/NGL Energy Finance Corp.†	8.375%		2/15/2032		799,000		819,592
NGPL PipeCo LLC†	3.25%		7/15/2031		1,170,000		1,000,293
Sabine Pass Liquefaction LLC	5.625%		3/1/2025		1,512,000		1,511,064
Venture Global LNG, Inc.†	8.375%		6/1/2031		1,159,000		1,195,965
Total							14,374,689
REITS 1.56%
American Tower Corp.	2.40%		3/15/2025		949,000		920,245
American Tower Corp.	2.95%		1/15/2025		497,000		486,549
American Tower Corp.	3.80%		8/15/2029		2,150,000		2,007,229
Crown Castle, Inc.	2.10%		4/1/2031		1,001,000		810,677
Crown Castle, Inc.	3.30%		7/1/2030		2,928,000		2,604,180
EPR Properties	4.50%		6/1/2027		522,000		497,026
EPR Properties	4.95%		4/15/2028		732,000		697,276
Iron Mountain Information Management Services, Inc.†	5.00%		7/15/2032		697,000		637,247
VICI Properties LP	6.125%		4/1/2054		479,000		472,933
VICI Properties LP/VICI Note Co., Inc.†	4.625%		12/1/2029		910,000		861,178
Total							9,994,540
Retail 0.60%
Alimentation Couche-Tard, Inc. (Canada)†(c)	5.267%		2/12/2034		1,293,000		1,290,194
Bayer Corp.†	6.65%		2/15/2028		670,000		690,102

See Notes to Schedule of Investments. 121

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Retail (continued)
Macy’s Retail Holdings LLC†	5.875%		4/1/2029	$	636,000	$	624,563
PetSmart, Inc./PetSmart Finance Corp.†	7.75%		2/15/2029		646,000		629,419
Staples, Inc.†	7.50%		4/15/2026		635,000		620,355
Total							3,854,633
Semiconductors 0.39%
Broadcom, Inc.†	4.15%		4/15/2032		983,000		912,315
Micron Technology, Inc.	5.30%		1/15/2031		726,000		730,465
SK Hynix, Inc. (South Korea)†(c)	5.50%		1/16/2029		872,000		870,243
Total							2,513,023
Software 0.82%
Cloud Software Group, Inc.†	6.50%		3/31/2029		679,000		644,908
Cloud Software Group, Inc.†	9.00%		9/30/2029		650,000		624,047
Oracle Corp.	2.875%		3/25/2031		2,024,000		1,760,814
Oracle Corp.	6.25%		11/9/2032		1,004,000		1,074,695
Workday, Inc.	3.80%		4/1/2032		1,290,000		1,175,300
Total							5,279,764
Telecommunications 1.21%
Altice France SA (France)†(c)	8.125%		2/1/2027		676,000		528,996
AT&T, Inc.	4.30%		2/15/2030		1,272,000		1,222,793
Frontier Communications Holdings LLC†	5.00%		5/1/2028		673,000		625,175
Frontier Communications Holdings LLC	5.875%		11/1/2029		745,000		630,315
Sprint Capital Corp.	6.875%		11/15/2028		520,000		554,545
T-Mobile USA, Inc.	3.875%		4/15/2030		2,682,000		2,513,240
T-Mobile USA, Inc.	4.85%		1/15/2029		1,650,000		1,638,566
Total							7,713,630
Transportation 0.09%
Rand Parent LLC†	8.50%		2/15/2030		610,000		604,952
Total Corporate Bonds (cost $299,034,996)							293,909,866
FLOATING RATE LOANS(e) 2.43%
Building Materials 0.34%
Emrld Borrower LP Term Loan B	–	(f)	5/31/2030		1,904,449		1,905,877
MI Windows and Doors LLC 2024 Term Loan B2	–	(f)	3/21/2031		300,000		301,782
Total							2,207,659

122 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Commercial Services 0.15%
PG Investment Co. 59 SARL Term Loan B (Luxembourg)(c)	–	(f)	2/24/2031	$	950,098	$	953,067
Diversified Financial Services 0.13%
Nuvei Technologies Corp. USD Term Loan (Canada)(c)	–	(f)	12/19/2030		843,469		846,455
Financial 0.10%
Hudson River Trading LLC 2021 Term Loan	8.445% (1 mo. USD Term SOFR + 3.00%	)	3/20/2028		637,357		633,973
Health Care Services 0.20%
Star Parent, Inc. Term Loan B	–	(f)	9/27/2030		1,290,000		1,283,634
Insurance 0.15%
Asurion LLC 2020 Term Loan B8	8.692% (1 mo. USD Term SOFR + 3.25%	)	12/23/2026		954,633		937,583
Internet 0.10%
MH Sub I LLC 2023 Term Loan	9.58% (1 mo. USD Term SOFR + 4.25%	)	5/3/2028		642,382		639,315
Lodging 0.23%
Hilton Domestic Operating Co., Inc. 2023 Term Loan B3	7.179% (1 mo. USD Term SOFR + 1.75%	)	6/21/2028		1,489,229		1,493,592
Media 0.49%
Cengage Learning, Inc. 2024 Term Loan B	9.579% (3 mo. USD Term SOFR + 4.25%	)	3/15/2031		766,000		766,119
Charter Communications Operating LLC 2019 Term Loan B2	7.076% (1 mo. USD Term SOFR + 1.75%	)	2/1/2027		888,372		889,163
Charter Communications Operating LLC 2023 Term Loan B4	7.329% (3 mo. USD Term SOFR + 2.00%	)	12/7/2030		1,490,093		1,476,943
Total							3,132,225
Pipelines 0.30%
Oryx Midstream Services Permian Basin LLC 2024 Term Loan B	8.436% (1 mo. USD Term SOFR + 3.00%	)	10/5/2028		948,343		953,004
WhiteWater DBR HoldCo LLC Term Loan B	–	(f)	3/3/2031		949,000		951,766
Total							1,904,770

See Notes to Schedule of Investments. 123

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
Software 0.24%
AppLovin Corp. 2024 Term Loan (2030)	–	(f)	8/16/2030	$	895,349	$	895,908
Cotiviti Corp. 2024 Term Loan	–	(f)	2/21/2031		640,000		639,200
Total							1,535,108
Total Floating Rate Loans (cost $15,578,415)							15,567,381
FOREIGN GOVERNMENT OBLIGATIONS(c) 1.67%
Brazil 0.14%
Brazil Government International Bonds	6.125%		3/15/2034		897,000		888,664
Colombia 0.15%
Colombia Government International Bonds	7.50%		2/2/2034		955,000		978,304
Japan 0.65%
Development Bank of Japan, Inc.†	1.25%		10/20/2026		2,066,000		1,889,148
Japan International Cooperation Agency	2.125%		10/20/2026		2,394,000		2,238,522
Total							4,127,670
Mexico 0.23%
Mexico Government International Bonds	4.875%		5/19/2033		1,560,000		1,480,635
Senegal 0.09%
Senegal Government International Bonds†	6.25%		5/23/2033		640,000		547,106
Sweden 0.31%
Svensk Exportkredit AB	4.25%		2/1/2029		2,015,000		2,000,584
Turkey 0.10%
Turkiye Ihracat Kredi Bankasi AS†	7.50%		2/6/2028		642,000		645,165
Total Foreign Government Obligations (cost $10,706,316)							10,668,128
GOVERNMENT SPONSORED ENTERPRISES COLLATERALIZED MORTGAGE OBLIGATIONS 0.57%
Federal Home Loan Mortgage Corp. Multifamily Structured Pass-Through Certificates Series 145 Class A2	2.58%		5/25/2032		1,648,000		1,419,284
Federal Home Loan Mortgage Corp. Multifamily Structured Pass-Through Certificates Series G07 Class A2	3.123%	#(g)	8/25/2032		2,510,000		2,248,118
Total Government Sponsored Enterprises Collateralized Mortgage Obligations (cost $3,691,271)							3,667,402
GOVERNMENT SPONSORED ENTERPRISES PASS-THROUGHS 21.19%
Federal Home Loan Mortgage Corp.	2.00%		9/1/2050		1,877,431		1,498,427
Federal Home Loan Mortgage Corp.	2.50%		11/1/2050 - 7/1/2051		3,147,463		2,643,099
Federal Home Loan Mortgage Corp.	3.00%		5/1/2050		2,033,935		1,777,980

124 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date		Principal Amount		Fair Value
GOVERNMENT SPONSORED ENTERPRISES PASS-THROUGHS (continued)
Federal Home Loan Mortgage Corp.	3.50%		2/1/2046	$	987,030	$	909,426
Federal Home Loan Mortgage Corp.	4.50%		8/1/2052		2,500,862		2,414,385
Federal Home Loan Mortgage Corp.	5.00%		7/1/2052 - 8/1/2052		5,353,431		5,289,023
Federal National Mortgage Association	2.00%		6/1/2051 - 11/1/2051		5,606,663		4,478,969
Federal National Mortgage Association	2.50%		8/1/2050 - 5/1/2052		27,640,402		23,325,604
Federal National Mortgage Association	3.00%		12/1/2048 - 1/1/2051		4,378,642		3,849,297
Federal National Mortgage Association	3.50%		7/1/2045 - 4/1/2052		3,641,998		3,315,565
Federal National Mortgage Association	4.00%		5/1/2052 - 6/1/2052		4,216,664		3,957,520
Federal National Mortgage Association	5.00%		7/1/2052 - 8/1/2052		3,746,382		3,706,065
Federal National Mortgage Association	5.887% (1Yr. RFUCCT + 1.79%	)#	3/1/2042		70,138		72,391
Government National Mortgage Association(h)	2.00%		TBA		1,644,000		1,347,135
Government National Mortgage Association(h)	2.50%		TBA		4,269,000		3,639,158
Government National Mortgage Association(h)	3.00%		TBA		8,750,000		7,722,462
Government National Mortgage Association(h)	3.50%		TBA		4,552,000		4,145,318
Government National Mortgage Association(h)	4.00%		TBA		5,367,000		5,023,773
Government National Mortgage Association(h)	4.50%		TBA		5,702,000		5,479,537
Government National Mortgage Association(h)	5.00%		TBA		9,675,000		9,511,951
Government National Mortgage Association(h)	5.50%		TBA		7,642,000		7,632,771
Government National Mortgage Association(h)	6.00%		TBA		4,017,000		4,049,442
Government National Mortgage Association(h)	6.50%		TBA		993,000		1,008,911
Uniform Mortgage-Backed Security(h)	2.00%		TBA		3,643,000		2,885,605
Uniform Mortgage-Backed Security(h)	2.50%		TBA		1,461,000		1,208,683
Uniform Mortgage-Backed Security(h)	3.00%		TBA		847,000		728,797
Uniform Mortgage-Backed Security(h)	4.00%		TBA		1,506,000		1,395,382
Uniform Mortgage-Backed Security(h)	5.00%		TBA		1,600,000		1,561,311
Uniform Mortgage-Backed Security(h)	5.50%		TBA		3,840,000		3,869,664
Uniform Mortgage-Backed Security(h)	6.00%		TBA		7,398,000		7,508,084
Uniform Mortgage-Backed Security(h)	6.50%		TBA		5,885,000		6,010,801
Uniform Mortgage-Backed Security(h)	7.00%		TBA		3,513,000		3,617,869
Total Government Sponsored Enterprises Pass-Throughs (cost $139,110,690)							135,584,405

See Notes to Schedule of Investments. 125

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES 8.12%
Angel Oak Mortgage Trust Series 2020-1 Class A1†	2.466%	#(g)	12/25/2059	$	52,790	$	50,091
Bank Series 2022-BNK44 Class A5	5.745%	#(g)	11/15/2055		1,530,000		1,612,895
Bank Series 2023-5YR2 Class A3	6.656%	#(g)	7/15/2056		760,000		802,430
Bank Series 2023-5YR4 Class A3	6.50%		12/15/2056		1,270,000		1,339,252
BBCMS Mortgage Trust Series 2019-BWAY Class B†	6.75% (1 mo. USD Term SOFR + 1.42%	)#	11/15/2034		288,000		100,964
Benchmark Mortgage Trust Series 2024-V5 Class A3	5.805 %		1/10/2057		580,000		597,765
BHMS Mortgage Trust Series 2018-ATLS Class A†	6.872% (1 mo. USD Term SOFR + 1.55%	)#	7/15/2035		1,080,000		1,079,137
BMO Mortgage Trust Series 2023-5C2 Class A3	7.055%	#(g)	11/15/2056		1,320,000		1,427,912
BMO Mortgage Trust Series 2023-C5 Class A4	5.494 %		6/15/2056		1,130,000		1,164,580
BRAVO Residential Funding Trust Series 2021-NQM2 Class A1†	0.97 %	#(g)	3/25/2060		1,184,629		1,107,018
BX Commercial Mortgage Trust Series 2021-XL2 Class A†	6.128% (1 mo. USD Term SOFR + 0.80%	)#	10/15/2038		421,460		418,575
BX Commercial Mortgage Trust Series 2024-XL4 Class A†	6.767% (1 mo. USD Term SOFR + 1.44%	)#	2/15/2039		1,570,000		1,574,301
BX Commercial Mortgage Trust Series 2024-XL5 Class A†	6.692% (1 mo. USD Term SOFR + 1.39%	)#	3/15/2041		820,000		821,629
Chase Home Lending Mortgage Trust Series 2024-1A2 Class A2†	6.50%	#(g)	1/25/2055		1,176,813		1,188,747
CIM Trust Series 2021-J3 Class A1†	2.50%	#(g)	6/25/2051		2,028,114		1,638,500
COMM Mortgage Trust Series 2014-CR17 Class AM	4.174%		5/10/2047		1,460,000		1,411,315
COMM Mortgage Trust Series 2015-LC21 Class AM	4.043%	#(g)	7/10/2048		1,228,000		1,186,244
Commercial Mortgage Pass-Through Certificates Series 2014-CR17 Class A5	3.977%		5/10/2047		627,173		625,887
CSMC Trust Series 2020-AFC1 Class A1†	3.24%	#(g)	2/25/2050		167,345		154,242
EQUS Mortgage Trust Series 2021-EQAZ Class A†	6.195% (1 mo. USD Term SOFR + 0.87%	)#	10/15/2038		560,989		558,233

126 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES (continued)
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2021-DNA3 Class M2†	7.42% (30 day USD SOFR Average + 2.10%	)#	10/25/2033	$	1,040,000	$	1,058,935
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2022-DNA1 Class M2†	7.82% (30 day USD SOFR Average + 2.50%	)#	1/25/2042		1,470,000		1,497,399
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2022-DNA4 Class M1B†	8.67% (30 day USD SOFR Average + 3.35%	)#	5/25/2042		680,000		711,528
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2022-HQA2 Class M1A†	7.97% (30 day USD SOFR Average + 2.65%	)#	7/25/2042		818,136		840,536
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2022-HQA3 Class A1†	7.17% (30 day USD SOFR Average + 1.85%	)#	11/25/2043		1,472,785		1,491,430
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2022-HQA3 Class M1A†	7.62% (30 day USD SOFR Average + 2.30%	)#	8/25/2042		1,660,883		1,697,203
Federal Home Loan Mortgage Corp. STACR REMICS Trust Series 2024-HQA1 Class A1†	6.569% (30 day USD SOFR Average + 1.25%	)#	3/25/2044		1,280,000		1,282,173
Federal National Mortgage Association Connecticut Avenue Securities Series 2023-R04 Class 1M1†	7.621% (30 day USD SOFR Average + 2.30%	)#	5/25/2043		907,787		927,027
Federal National Mortgage Association Connecticut Avenue Securities Series 2023-R04 Class 1M2†	8.871% (30 day USD SOFR Average + 3.55%	)#	5/25/2043		776,940		828,857
Federal National Mortgage Association Connecticut Avenue Securities Series 2023-R07 Class 2M1†	7.271% (30 day USD SOFR Average + 1.95%	)#	9/25/2043		403,892		407,837
Federal National Mortgage Association Connecticut Avenue Securities Trust Series 2023-R02 Class 1M1†	7.62% (30 day USD SOFR Average + 2.30%	)#	1/25/2043		1,057,997		1,083,812

See Notes to Schedule of Investments. 127

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date	Principal Amount		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES (continued)
Federal National Mortgage Association Connecticut Avenue Securities Trust Series 2023-R03 Class 2M1†	7.82% (30 day USD SOFR Average + 2.50%	)#	4/25/2043	$	1,243,655	$	1,268,634
Flagstar Mortgage Trust Series 2021-3INV Class A2†	2.50%	#(g)	6/25/2051		1,423,046		1,146,976
Flagstar Mortgage Trust Series 2021-7 Class A1†	2.50%	#(g)	8/25/2051		1,302,714		1,049,989
GCAT Trust Series 2024-INV1 Class 1A2†	5.50%	#(g)	1/25/2054		1,384,818		1,363,552
GS Mortgage Securities Corp. Trust Series 2021-ROSS Class G†	10.091% (1 mo. USD Term SOFR + 4.76%	)#	5/15/2026		1,230,000		474,300
GS Mortgage-Backed Securities Trust Series 2021-PJ2 Class A2†	2.50%	#(g)	7/25/2051		1,072,283		864,261
GS Mortgage-Backed Securities Trust Series 2021-PJ8 Class A2†	2.50%	#(g)	1/25/2052		1,659,136		1,337,265
GS Mortgage-Backed Securities Trust Series 2022-PJ6 Class A4†	3.00%	#(g)	1/25/2053		2,575,766		2,162,764
GS Mortgage-Backed Securities Trust Series 2023-PJ1 Class A4†	3.50%	#(g)	2/25/2053		1,172,960		1,024,429
JP Morgan Chase Commercial Mortgage Securities Trust Series 2018-MINN Class A†	6.642% (1 mo. USD Term SOFR + 1.32%	)#	11/15/2035		542,000		516,586
JP Morgan Mortgage Trust Series 2021-13 Class A3†	2.50%	#(g)	4/25/2052		1,141,520		920,066
JP Morgan Mortgage Trust Series 2021-15 Class A2†	3.00%	#(g)	6/25/2052		2,529,199		2,123,663
JP Morgan Mortgage Trust Series 2021-INV8 Class A2†	3.00%	#(g)	5/25/2052		1,070,923		899,210
JP Morgan Mortgage Trust Series 2022-4 Class A3†	3.00%	#(g)	10/25/2052		882,239		740,779
Morgan Stanley Bank of America Merrill Lynch Trust Series 2015-C23 Class XA(i)	0.541%	#(g)	7/15/2050		13,775,954		60,883
New Residential Mortgage Loan Trust Series 2020-NQM1 Class A1†	2.464%	#(g)	1/26/2060		61,273		56,149
PFP Ltd. Series 2023-10 Class A†	7.692% (1 mo. USD Term SOFR + 2.36%	)#	9/16/2038		1,050,000		1,052,602
Ready Capital Mortgage Financing LLC Series 2022-FL8 Class A†	6.971% (30 day USD SOFR Average + 1.65%	)#	1/25/2037		1,735,485		1,738,739
Residential Mortgage Loan Trust Series 2020-1 Class A1†	2.376%	#(g)	1/26/2060		26,435		25,302

128 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate		Maturity Date		Principal Amount		Fair Value
NON-AGENCY COMMERCIAL MORTGAGE-BACKED SECURITIES (continued)
Starwood Mortgage Residential Trust Series 2020-1 Class A1†	2.275%	#(g)	2/25/2050	$	14,830	$	13,930
Starwood Mortgage Residential Trust Series 2020-3 Class A1†	1.486%	#(g)	4/25/2065		309,957		293,346
Verus Securitization Trust Series 2020-1 Class A1†	3.417%	(d)	1/25/2060		92,601		88,656
Verus Securitization Trust Series 2020-5 Class A1†	1.218%	(d)	5/25/2065		403,345		379,469
Verus Securitization Trust Series 2021-2 Class A1†	1.031%	#(g)	2/25/2066		815,823		707,275
Vista Point Securitization Trust Series 2020-2 Class A1†	1.475%	#(g)	4/25/2065		216,268		198,057
Wells Fargo Mortgage Backed Securities Trust Series 2021-INV2 Class A2†	2.50%	#(g)	9/25/2051		922,580		743,600
Total Non-Agency Commercial Mortgage-Backed Securities (cost $53,217,176)							51,936,936
U.S. TREASURY OBLIGATIONS 13.80%
U.S. Treasury Bonds	3.875%		2/15/2043		10,532,000		9,739,220
U.S. Treasury Bonds	4.25%		2/15/2054		5,732,000		5,638,407
U.S. Treasury Bonds	4.375%		8/15/2043		18,140,000		17,930,256
U.S. Treasury Notes	4.25%		2/28/2029		23,469,500		23,504,338
U.S. Treasury Notes	4.50%		3/31/2026		7,371,200		7,353,060
U.S. Treasury Notes(j)	4.625%		2/28/2026		24,156,000		24,138,072
Total U.S. Treasury Obligations (cost $88,824,035)							88,303,353
Total Long-Term Investments (cost $715,999,413)							704,736,379
SHORT-TERM INVESTMENTS 5.39%
U.S. TREASURY OBLIGATIONS 0.90%
U.S. Treasury Bills (Cost $5,744,500)	Zero Coupon		4/4/2024		5,747,000		5,744,516

See Notes to Schedule of Investments. 129

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investments	Interest Rate	Maturity Date		Principal Amount		Fair Value
REPURCHASE AGREEMENTS 4.49%
Repurchase Agreement dated 3/28/2024, 5.390% due 4/1/2024 with Barclays Bank PLC collateralized by $23,588,000 of U.S. Treasury Note at 5.000% due 9/30/2025; value: $24,249,214; proceeds: $23,787,977 (cost $23,773,739)			$	23,773,739	$	23,773,739
Repurchase Agreement dated 3/28/2024, 5.340% due 4/1/2024 with JPMorgan Chase & Co. collateralized by $4,918,000 of U.S. Treasury Bond at 4.500% due 11/15/2033; value: $5,103,979; proceeds: $5,002,967 (cost $5,000,000)				5,000,000		5,000,000
Total Repurchase Agreements (cost $28,773,739)						28,773,739
Total Short-Term Investments (cost $34,518,239)						34,518,255
Total Investments in Securities 115.54% (cost $750,517,652)						739,254,634
Other Assets and Liabilities – Net(k) (15.54)%						(99,450,786	)
Net Assets 100.00%					$	639,803,848

CMT	Constant Maturity Rate.
LIBOR	London Interbank Offered Rate.
REITS	Real Estate Investment Trusts.
REMICS	Real Estate Mortgage Investment Conduits.
RFUCCT	Refinitiv USD IBOR Consumer Cash Fallbacks Term.
SOFR	Secured Overnight Financing Rate.
STACR	Structured Agency Credit Risk.

†	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 March 31, 2024, the total value of Rule 144A securities was $263,678,982, which represents 41.21% of net assets.
#	Variable rate security. The interest rate represents the rate in effect at March 31, 2024.
(a)	Securities purchased on a when-issued basis.
(b)	Level 3 Investment as described in Note 2(b) in the Notes to Schedule of Investments. Security valued utilizing third party pricing information without adjustment. Such valuations are based on unobservable inputs. A significant change in third party information could result in a significantly lower or higher value of such Level 3 investments.
(c)	Foreign security traded in U.S. dollars.
(d)	Step Bond – Security with a predetermined schedule of interest rate changes.
(e)	Floating Rate Loans in which the Fund invests generally pay interest at rates which are periodically re-determined at a margin above the Secured Overnight Financing Rate (“SOFR”) or the prime rate offered by major U.S. banks. The rate(s) shown is the rate(s) in effect at March 31, 2024.
(f)	Interest Rate to be determined.
(g)	Interest rate is based on the weighted average interest rates of the underlying mortgages within the mortgage pool.
(h)	To-be-announced (“TBA”). Security purchased on a forward commitment basis with an approximate principal and maturity date. Actual principal and maturity will be determined upon settlement when the specific mortgage pools are assigned.
(i)	Interest-only security. The principal amount shown is a notional amount representing the outstanding principal of the underlying debt obligation(s). Holders of interest only securities do not receive principal payments on the underlying debt obligation(s).
(j)	Security has been fully or partially segregated for open reverse repurchase agreements as of March 31, 2024.
(k)	Other Assets and Liabilities – Net include net unrealized appreciation/depreciation on futures contracts and reverse repurchase agreement as follows:

130 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Futures Contracts at March 31, 2024:

Type	Expiration	Contracts	Position	Notional Amount			Notional Value			Unrealized Appreciation
U.S. 10-Year Ultra Treasury Note	June 2024	59	Short	$	(6,808,938	)	$	(6,761,953	)		$	46,985
U.S. Ultra Treasury Bond	June 2024	318	Long		40,167,865			41,022,000				854,135
Total Unrealized Appreciation on Futures Contracts											$	901,120

Type	Expiration	Contracts	Position	Notional Amount	Notional Value	Unrealized Depreciation
U.S. 2-Year Treasury Note	June 2024	519	Long	$106,287,657	$106,127,391	$(160,266)

Reverse Repurchase Agreement Payables as of March 31, 2024

Counterparty	Principal		Collateral Held by Counterparty	Interest Rate(1)	Trade Date	Maturity Date	Fair Value(2)
Barclays Bank PLC	$	23,773,739	$24,156,000 principal, U.S. Treasury Notes at 4.625% due 2/28/2026, $24,138,072 fair value	4.940%	3/28/2024	4/1/2024	$	23,786,788

(1)	The positive interest rate on the reverse repurchase agreement results in interest expense to the Fund.
(2)	Total fair value of reverse repurchase agreement is presented net of interest payable of $13,049.

The following is a summary of the inputs used as of March 31, 2024 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Long-Term Investments
Asset-Backed Securities
Other	$	–	$	58,792,950	$	963,600	$	59,756,550
Remaining Industries		–		45,342,358		–		45,342,358
Corporate Bonds		–		293,909,866		–		293,909,866
Floating Rate Loans		–		15,567,381		–		15,567,381
Foreign Government Obligations		–		10,668,128		–		10,668,128
Government Sponsored Enterprises
Collateralized Mortgage Obligations		–		3,667,402		–		3,667,402
Government Sponsored Enterprises
Pass-Throughs		–		135,584,405		–		135,584,405
Non-Agency Commercial
Mortgage-Backed Securities		–		51,936,936		–		51,936,936
U.S. Treasury Obligations		–		88,303,353		–		88,303,353
Short-Term Investments
U.S. Treasury Obligations		–		5,744,516		–		5,744,516
Repurchase Agreements		–		28,773,739		–		28,773,739
Total	$	–	$	738,291,034	$	963,600	$	739,254,634

See Notes to Schedule of Investments. 131

Schedule of Investments (unaudited)(concluded)

LORD ABBETT SERIES FUND, INC. – TOTAL RETURN PORTFOLIO March 31, 2024

Investment Type(2)	Level 1			Level 2			Level 3		Total
Other Financial Instruments
Futures Contracts
Assets	$	901,120		$	–		$	–	$	901,120
Liabilities		(160,266	)		–			–		(160,266	)
Reverse Repurchase Agreements
Asset		–			–			–		–
Liabilities		–			(23,786,788	)		–		(23,786,788	)
Total	$	740,854		$	(23,786,788	)	$	–	$	(23,045,934	)

(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. When applicable, each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets. Management has determined not to provide a reconciliation as the balance of Level 3 investments was not considered to be material to the Fund’s net assets at the beginning or end of the period.

132 See Notes to Schedule of Investments.

Notes to Schedule of Investments (unaudited)

1. ORGANIZATION  

Lord Abbett Series Fund, Inc. (the “Company”) is registered under the Investment Company Act of 1940, as amended (the “Act”), as an open-end management investment company and was incorporated under Maryland law in 1989. The Company consists of the following nine portfolios (separately, a “Fund” and collectively, the “Funds”): Bond Debenture Portfolio (“Bond Debenture”), Developing Growth Portfolio (“Developing Growth”), Dividend Growth Portfolio (“Dividend Growth”), Fundamental Equity Portfolio (“Fundamental Equity”), Growth and Income Portfolio (“Growth and Income”), Growth Opportunities Portfolio (“Growth Opportunities”), Mid Cap Stock Portfolio (“Mid Cap Stock”), Short Duration Income Portfolio (“Short Duration Income”) and Total Return Portfolio (“Total Return”). Each Fund is diversified as defined in the Act.

2. SIGNIFICANT ACCOUNTING POLICIES  

(a)

Investment Valuation–Under procedures approved by the Funds’ Board of Directors (the “Board”), the Board has designated the determination of fair value of the Funds’ portfolio investments to Lord, Abbett & Co. LLC (“Lord Abbett”) as its valuation designee. Accordingly, Lord Abbett is responsible for, among other things, assessing and managing valuation risks, establishing, applying and testing fair value methodologies, and evaluating pricing services. Lord Abbett has formed a Pricing Committee that performs these responsibilities on behalf of Lord Abbett, administers the pricing and valuation of the portfolio investments and ensures that prices utilized reasonably reflect fair value. Among other things, these procedures allow Lord Abbett, subject to Board oversight, 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. When valuing foreign equity securities that meet certain criteria, the Pricing Committee uses a third-party fair valuation service that values such securities to reflect market trading that occurs after the close of the applicable foreign markets of comparable securities or other instruments that correlate to the fair-valued 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 ask 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 ask prices is used. Fixed income securities are valued based on evaluated prices supplied by independent pricing services, which reflect broker/dealer supplied valuations and the independent pricing services’ own electronic data processing techniques. Floating rate loans are valued at the average of bid and ask quotations obtained from dealers in loans on the basis of prices supplied by independent pricing services. Forward foreign currency exchange contracts are valued using daily forward exchange rates. Swaps, options and options on swaps (“swaptions”) are valued daily using independent pricing services or quotations from broker/dealers to the extent available.

133

Notes to Schedule of Investments (unaudited)(continued)

	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 observable inputs such as yield curves, broker quotes, observable trading activity, option adjusted spread models and other relevant information to determine the fair value of portfolio investments. The Board or a designated committee thereof periodically reviews reports that may include fair value determinations made by the Pricing Committee, related market activity, inputs and assumptions, and retrospective comparison of 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. Investments in open-end money market mutual funds are valued at their NAV as of the close of each business day.
(b)	Fair Value Measurements–Fair value is defined as the price that the 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 the Fund’s own assumptions in determining the fair value of investments).

A summary of inputs used in valuing the Fund’s investments and other financial instruments as of March 31, 2024 and, if applicable, Level 3 rollforwards for the period then ended is included in the 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.

134

Notes to Schedule of Investments (unaudited)(concluded)

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 statute 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 Funds 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 the borrower becomes 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 is required to have a value equal to at least 100% of the market value of the securities loaned. The collateral must be marked-to-market daily to cover increases in the market value of the securities loaned (or potentially a decline in the value of the collateral). In general, the risk of borrower default will be borne by Citibank, N.A.; 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 continue 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 March 31, 2024, the market value of securities loaned and collateral received for the Funds were as follows:

Funds	Market Value of Securities Loaned		Collateral Received
Bond Debenture Portfolio	$	1,440,922	$	1,463,786
Developing Growth Portfolio		654,836		658,384

5. TRANSACTIONS WITH AFFILIATED FUNDS  

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. The Fund had the following transactions with affiliated issuers during the period ended March 31, 2024:

Affiliated Issuer	Value at 12/31/2023	Purchases at Cost		Proceeds from Sales	Net Realized Gain (Loss)	Change in Appreciation (Depreciation)	Value at 3/31/2024		Shares as of 3/31/2024	Dividend Income	Percent Ownership at 3/31/2024
Lord Abbett Private Credit Fund 1, LP	–		$746,854	–	–	–		$746,854	746,854	–	0.07%

135

QPHR-SERIES-1Q

(05/24)