NPORT-EX 2 PIPDBZ0PRU033125.htm
AST MULTI-SECTOR FIXED INCOME PORTFOLIO
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
Long-Term Investments — 98.3%
Asset-Backed Security — 0.4%
Collateralized Loan Obligation
Benefit Street Partners CLO Ltd. (Cayman Islands),
Series 2019-18A, Class A1R, 144A, 3 Month SOFR + 1.432% (Cap N/A, Floor 1.170%)
5.734%(c)   10/15/34     42,500   $42,490,106
(cost $42,500,000)        
Commercial Mortgage-Backed Securities — 5.8%
BANK,
Series 2018-BN15, Class A3
4.138%   11/15/61     12,743   12,495,195
Benchmark Mortgage Trust,
Series 2018-B07, Class A3
4.241%   05/15/53     13,000   12,698,767
CD Mortgage Trust,
Series 2018-CD07, Class A3
4.013%   08/15/51     24,180   23,548,278
Citigroup Commercial Mortgage Trust,
Series 2015-GC33, Class A3
3.515%   09/10/58     11,391   11,342,106
Series 2016-C01, Class A3
2.944%   05/10/49     18,933   18,617,658
Series 2016-C02, Class A3
2.575%   08/10/49     16,907   16,523,861
Series 2016-P04, Class A3
2.646%   07/10/49     35,000   34,141,296
Series 2016-P06, Class A4
3.458%   12/10/49     4,877   4,784,764
Series 2017-P07, Class A3
3.442%   04/14/50     17,704   17,364,044
Series 2018-C06, Class A3
4.145%   11/10/51     16,375   15,959,324
Commercial Mortgage Trust,
Series 2015-CR26, Class A3
3.359%   10/10/48     10,075   10,040,752
Series 2016-COR01, Class A3
2.826%   10/10/49     24,738   23,944,799
Series 2017-COR02, Class A2
3.239%   09/10/50     38,294   37,116,290
CSAIL Commercial Mortgage Trust,
Series 2018-CX11, Class A4
3.766%   04/15/51     10,778   10,540,402
Deutsche Bank Commercial Mortgage Trust,
Series 2016-C01, Class A3A
3.015%   05/10/49     8,811   8,692,706
Series 2016-C03, Class A4
2.632%   08/10/49     10,641   10,396,930
Series 2017-C06, Class A3
3.269%   06/10/50     3,576   3,465,461
GS Mortgage Securities Trust,
Series 2016-GS02, Class A3
2.791%   05/10/49     19,493   19,149,772
Series 2016-GS03, Class A3
2.592%   10/10/49     22,900   22,343,210
JPMBB Commercial Mortgage Securities Trust,
Series 2015-C30, Class A4
3.551%   07/15/48     5,092   5,073,863
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
Commercial Mortgage-Backed Securities
(continued)
JPMCC Commercial Mortgage Securities Trust,
Series 2019-COR04, Class A4
3.758%   03/10/52     50,750   $47,986,678
JPMorgan Chase Commercial Mortgage Securities Trust,
Series 2016-JP02, Class A3
2.559%   08/15/49     10,730   10,541,324
Morgan Stanley Bank of America Merrill Lynch Trust,
Series 2015-C27, Class A3
3.473%   12/15/47     11,601   11,547,204
Morgan Stanley Capital I Trust,
Series 2016-UB11, Class A3
2.531%   08/15/49     9,765   9,507,445
UBS Commercial Mortgage Trust,
Series 2017-C05, Class A4
3.212%   11/15/50     10,000   9,661,660
Series 2018-C12, Class A4
4.030%   08/15/51     25,000   24,538,592
Wells Fargo Commercial Mortgage Trust,
Series 2016-C35, Class A3
2.674%   07/15/48     19,665   19,223,027
Series 2016-LC24, Class A3
2.684%   10/15/49     29,805   29,185,884
Series 2016-NXS06, Class A3
2.642%   11/15/49     20,000   19,622,738
Series 2017-C42, Class A3
3.330%   12/15/50     15,000   14,568,539
Series 2019-C49, Class A4
3.760%   03/15/52     28,500   27,579,399
Series 2019-C51, Class A3
3.055%   06/15/52     33,002   30,365,160
 
Total Commercial Mortgage-Backed Securities

(cost $593,462,378)

  572,567,128
Corporate Bonds — 88.0%
Aerospace & Defense — 1.6%
Boeing Co. (The),
Sr. Unsec’d. Notes
3.625%   03/01/48     10,905   7,436,989
3.650%   03/01/47     8,861   6,131,930
3.850%   11/01/48     6,466   4,583,043
3.900%   05/01/49     21,715   15,586,869
3.950%   08/01/59     8,125   5,532,666
5.705%   05/01/40     4,630   4,500,398
5.805%   05/01/50(a)     3,295   3,134,810
5.930%   05/01/60     63,469   59,660,778
7.875%   04/15/43     13,929   16,231,939
Lockheed Martin Corp.,
Sr. Unsec’d. Notes
3.800%   03/01/45     3,218   2,552,980
5.700%   11/15/54     11,875   12,051,218
5.900%   11/15/63(a)     7,625   7,888,858
Northrop Grumman Corp.,
Sr. Unsec’d. Notes
4.750%   06/01/43     500   451,577
A1

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Aerospace & Defense (cont’d.)
Northrop Grumman Systems Corp.,
Gtd. Notes
7.875%   03/01/26     2,000   $2,058,397
RTX Corp.,
Sr. Unsec’d. Notes
3.750%   11/01/46     3,050   2,321,535
4.150%   05/15/45     1,150   940,723
4.875%   10/15/40     1,320   1,231,919
6.400%   03/15/54     9,581   10,479,100
              162,775,729
Agriculture — 0.7%
Altria Group, Inc.,
Gtd. Notes
3.400%   02/04/41     2,220   1,626,837
BAT Capital Corp. (United Kingdom),
Gtd. Notes
3.557%   08/15/27     3,987   3,888,194
4.390%   08/15/37     41,810   36,582,939
4.540%   08/15/47     7,057   5,615,170
4.700%   04/02/27     5,130   5,131,834
6.250%   08/15/55(a)     13,440   13,404,224
Reynolds American, Inc. (United Kingdom),
Gtd. Notes
7.000%   08/04/41     3,275   3,483,299
8.125%   05/01/40(a)     650   762,889
              70,495,386
Airlines — 0.6%
American Airlines 2013-1 Class A Pass-Through Trust,
Pass-Through Certificates
4.000%   01/15/27     1,924   1,911,269
American Airlines 2015-1 Class A Pass-Through Trust,
Pass-Through Certificates
3.375%   11/01/28     6,383   6,185,627
American Airlines 2015-2 Class AA Pass-Through Trust,
Pass-Through Certificates
3.600%   03/22/29     2,426   2,350,258
American Airlines 2016-1 Class AA Pass-Through Trust,
Pass-Through Certificates
3.575%   07/15/29     3,211   3,104,000
Delta Air Lines, Inc.,
Sr. Unsec’d. Notes
3.750%   10/28/29     14,229   13,343,881
Delta Air Lines, Inc./SkyMiles IP Ltd.,
Sr. Sec’d. Notes, 144A
4.500%   10/20/25(a)     517   514,936
4.750%   10/20/28     2,645   2,632,436
Southwest Airlines Co.,
Sr. Unsec’d. Notes
5.125%   06/15/27     7,520   7,571,845
U.S. Airways 2013-1 Class A Pass-Through Trust,
Pass-Through Certificates
3.950%   05/15/27     95   94,528
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Airlines (cont’d.)
United Airlines 2014-1 Class A Pass-Through Trust,
Pass-Through Certificates
4.000%   10/11/27(a)     828   $818,304
United Airlines 2014-2 Class A Pass-Through Trust,
Pass-Through Certificates
3.750%   03/03/28(a)     2,597   2,557,586
United Airlines 2016-2 Class AA Pass-Through Trust,
Pass-Through Certificates
2.875%   04/07/30     14,836   13,940,003
United Airlines, Inc.,
Sr. Sec’d. Notes, 144A
4.625%   04/15/29     4,175   3,951,957
              58,976,630
Auto Manufacturers — 1.3%
Ford Holdings LLC,
Gtd. Notes
9.300%   03/01/30     968   1,099,027
Ford Motor Co.,
Sr. Unsec’d. Notes
3.250%   02/12/32     5,650   4,655,480
4.750%   01/15/43     6,670   5,056,358
7.750%   06/15/43     1,510   1,602,929
Ford Motor Credit Co. LLC,
Sr. Unsec’d. Notes
4.271%   01/09/27     1,775   1,737,086
4.687%   06/09/25     34,740   34,665,881
General Motors Co.,
Sr. Unsec’d. Notes
5.000%   04/01/35     3,785   3,497,927
5.150%   04/01/38(a)     3,890   3,518,372
5.200%   04/01/45     9,520   7,979,624
6.250%   10/02/43(a)     21,446   20,679,657
6.600%   04/01/36     13,335   13,776,342
General Motors Financial Co., Inc.,
Gtd. Notes
4.000%   10/06/26     6,525   6,442,366
4.300%   07/13/25     440   439,253
4.350%   01/17/27     3,320   3,288,465
5.250%   03/01/26(a)     3,868   3,875,125
Volkswagen International Finance NV (Germany),
Gtd. Notes, Series 10Y
1.875%   03/30/27   EUR 15,000   15,900,462
              128,214,354
Auto Parts & Equipment — 0.1%
Aptiv Swiss Holdings Ltd.,
Gtd. Notes
3.100%   12/01/51(a)     15,000   8,736,675
Banks — 9.5%
Banco Santander SA (Spain),
Sr. Non-Preferred Notes
3.800%   02/23/28     4,400   4,290,699
5.294%   08/18/27     8,200   8,291,296
 
A2

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Banks (cont’d.)
Bank of America Corp.,
Sr. Unsec’d. Notes
3.419%(ff)   12/20/28     22,418   $21,721,468
Sr. Unsec’d. Notes, MTN
2.676%(ff)   06/19/41     99,540   70,493,157
2.884%(ff)   10/22/30     11,865   10,921,285
3.194%(ff)   07/23/30     5,180   4,857,699
3.824%(ff)   01/20/28     67,232   66,381,210
4.083%(ff)   03/20/51     38,060   29,891,098
4.271%(ff)   07/23/29(a)     3,600   3,557,338
4.443%(ff)   01/20/48     10,675   9,022,482
Sub. Notes
6.110%   01/29/37     1,000   1,037,990
Sub. Notes, MTN
4.450%   03/03/26     18,340   18,304,648
Sub. Notes, Series L, MTN
3.950%   04/21/25(a)     10,185   10,178,369
Bank of New York Mellon Corp. (The),
Jr. Sub. Notes, Series F
4.625%(ff)   09/20/26(a)(oo)     2,386   2,346,681
Barclays PLC (United Kingdom),
Sr. Unsec’d. Notes
4.375%   01/12/26     10,555   10,538,778
4.942%(ff)   09/10/30(a)     2,105   2,094,749
5.785%(ff)   02/25/36     4,210   4,217,235
Sub. Notes
5.088%(ff)   06/20/30(a)     5,685   5,637,037
BNP Paribas SA (France),
Sr. Non-Preferred Notes, 144A
2.871%(ff)   04/19/32     10,000   8,769,388
3.132%(ff)   01/20/33     20,330   17,714,704
Sr. Preferred Notes, 144A
5.335%(ff)   06/12/29     6,770   6,884,290
Citigroup, Inc.,
Jr. Sub. Notes, Series X
3.875%(ff)   02/18/26(oo)     3,750   3,671,569
Sr. Unsec’d. Notes
2.561%(ff)   05/01/32     24,735   21,486,667
2.904%(ff)   11/03/42(a)     5,420   3,811,099
3.668%(ff)   07/24/28     34,800   34,024,310
3.700%   01/12/26     1,800   1,789,039
3.887%(ff)   01/10/28     385   380,399
5.612%(ff)   03/04/56     20,195   19,710,973
5.875%   01/30/42     4,115   4,210,725
6.875%   02/15/98     2,825   3,205,798
8.125%   07/15/39     2,000   2,479,900
Sub. Notes
4.400%   06/10/25     5,400   5,393,041
4.450%   09/29/27     3,905   3,884,307
4.600%   03/09/26     425   424,672
4.750%   05/18/46     1,045   885,828
5.827%(ff)   02/13/35(a)     2,175   2,161,474
Deutsche Bank AG (Germany),
Sr. Non-Preferred Notes
2.311%(ff)   11/16/27     4,260   4,090,874
2.552%(ff)   01/07/28(a)     1,022   983,686
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Banks (cont’d.)
Sub. Notes
3.729%(ff)   01/14/32     11,800   $10,571,149
3.742%(ff)   01/07/33     8,930   7,831,226
7.079%(ff)   02/10/34(a)     3,155   3,314,129
Discover Bank,
Sr. Unsec’d. Notes
3.450%   07/27/26(a)     2,205   2,167,665
Goldman Sachs Group, Inc. (The),
Sr. Unsec’d. Notes
2.908%(ff)   07/21/42     4,500   3,177,239
3.210%(ff)   04/22/42     7,183   5,302,256
ING Groep NV (Netherlands),
Sr. Unsec’d. Notes
5.550%(ff)   03/19/35     5,600   5,627,112
Intesa Sanpaolo SpA (Italy),
Sr. Non-Preferred Notes, 144A
7.778%(ff)   06/20/54     2,045   2,249,502
Sr. Preferred Notes, 144A
7.800%   11/28/53(a)     555   641,573
Sr. Preferred Notes, Series XR, 144A, MTN
4.000%   09/23/29(a)     15,500   14,839,857
JPMorgan Chase & Co.,
Jr. Sub. Notes, Series CC, 3 Month SOFR + 2.842%
7.132%(c)   05/01/25(a)(oo)     4,400   4,420,278
Jr. Sub. Notes, Series II
4.000%(ff)   07/01/25(a)(oo)     26,715   26,848,175
Sr. Unsec’d. Notes
2.069%(ff)   06/01/29(a)     2,035   1,883,948
2.525%(ff)   11/19/41     34,035   23,495,435
3.157%(ff)   04/22/42     15,586   11,623,820
3.328%(ff)   04/22/52     21,704   15,051,700
3.782%(ff)   02/01/28     5,000   4,931,703
3.882%(ff)   07/24/38(a)     42,267   36,672,105
3.897%(ff)   01/23/49     3,000   2,338,296
3.964%(ff)   11/15/48     51,882   40,836,161
4.032%(ff)   07/24/48     3,525   2,811,249
4.260%(ff)   02/22/48(a)     31,042   25,817,675
4.452%(ff)   12/05/29     1,500   1,488,995
Sub. Notes
4.125%   12/15/26     9,450   9,416,590
Lloyds Banking Group PLC (United Kingdom),
Sr. Unsec’d. Notes
3.750%   01/11/27     10,000   9,857,457
Morgan Stanley,
Sr. Unsec’d. Notes
3.217%(ff)   04/22/42     4,550   3,394,493
3.625%   01/20/27     2,600   2,571,216
4.457%(ff)   04/22/39     8,035   7,359,520
5.516%(ff)   11/19/55(a)     15,560   15,201,956
Sr. Unsec’d. Notes, GMTN
3.875%   01/27/26     589   586,001
4.431%(ff)   01/23/30(a)     27,100   26,750,531
5.597%(ff)   03/24/51(a)     23,844   23,471,296
Sr. Unsec’d. Notes, MTN
1.928%(ff)   04/28/32     12,595   10,546,059
2.802%(ff)   01/25/52(a)     13,053   8,048,628
 
A3

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Banks (cont’d.)
3.971%(cc)   07/22/38     17,130   $14,839,483
4.375%   01/22/47     3,800   3,191,923
6.375%   07/24/42     20,875   22,731,254
NatWest Group PLC (United Kingdom),
Sr. Unsec’d. Notes
4.445%(ff)   05/08/30     2,090   2,046,301
Societe Generale SA (France),
Gtd. Notes, 144A, MTN
3.625%   03/01/41(a)     16,230   11,306,292
Truist Financial Corp.,
Jr. Sub. Notes, Series N
6.669%(ff)   09/01/25(oo)     18,520   18,441,087
UBS Group AG (Switzerland),
Sr. Unsec’d. Notes, 144A
1.305%(ff)   02/02/27     500   486,250
2.746%(ff)   02/11/33     6,200   5,294,305
3.126%(ff)   08/13/30     15,000   13,928,807
4.125%   09/24/25     3,499   3,489,803
4.282%   01/09/28     7,135   7,046,060
Wells Fargo & Co.,
Sr. Unsec’d. Notes, MTN
4.611%(ff)   04/25/53(a)     12,450   10,567,351
5.013%(ff)   04/04/51     5,200   4,678,550
Sub. Notes, GMTN
4.900%   11/17/45     8,905   7,718,591
Sub. Notes, MTN
4.650%   11/04/44     3,135   2,658,278
4.750%   12/07/46     13,680   11,529,986
              940,845,278
Beverages — 1.7%
Anheuser-Busch Cos. LLC/Anheuser-Busch InBev Worldwide, Inc. (Belgium),
Gtd. Notes
4.700%   02/01/36     42,615   40,881,094
4.900%   02/01/46     92,788   84,673,012
Anheuser-Busch InBev Worldwide, Inc. (Belgium),
Gtd. Notes
4.439%   10/06/48     5   4,264
4.950%   01/15/42     1,540   1,439,986
5.550%   01/23/49(a)     46,306   46,290,974
              173,289,330
Biotechnology — 0.8%
Amgen, Inc.,
Sr. Unsec’d. Notes
2.600%   08/19/26     800   780,848
2.770%   09/01/53     7,393   4,381,191
4.400%   05/01/45     18,243   15,419,939
4.663%   06/15/51     17,165   14,662,165
5.150%   11/15/41     6,183   5,838,448
5.600%   03/02/43     13,165   13,048,327
5.650%   03/02/53(a)     11,405   11,184,223
5.750%   03/02/63     12,400   12,081,042
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Biotechnology (cont’d.)
Gilead Sciences, Inc.,
Sr. Unsec’d. Notes
4.500%   02/01/45     4,586   $3,995,257
              81,391,440
Building Materials — 0.8%
CRH America Finance, Inc.,
Gtd. Notes
5.875%   01/09/55     2,760   2,791,566
Fortune Brands Innovations, Inc.,
Sr. Unsec’d. Notes
4.000%   06/15/25     6,850   6,834,141
Johnson Controls International PLC,
Sr. Unsec’d. Notes
4.625%   07/02/44     5,204   4,550,872
Macmillan Bloedel Pembroke LP (Canada),
Sr. Unsec’d. Notes
7.700%   02/15/26     1,500   1,539,306
Martin Marietta Materials, Inc.,
Sr. Unsec’d. Notes
5.500%   12/01/54     1,775   1,684,691
Owens Corning,
Sr. Unsec’d. Notes
3.950%   08/15/29     2,700   2,613,151
4.300%   07/15/47     4,279   3,443,175
4.400%   01/30/48     11,815   9,607,910
7.000%   12/01/36     22,334   25,176,873
Vulcan Materials Co.,
Sr. Unsec’d. Notes
4.500%   06/15/47     16,084   13,576,879
4.700%   03/01/48     12,117   10,489,233
              82,307,797
Chemicals — 3.2%
CF Industries, Inc.,
Gtd. Notes
4.950%   06/01/43     21,248   18,521,882
5.150%   03/15/34     14,881   14,438,657
5.375%   03/15/44     4,726   4,328,771
Gtd. Notes, 144A
4.500%   12/01/26     20,768   20,698,989
Dow Chemical Co. (The),
Sr. Unsec’d. Notes
4.625%   10/01/44     3,944   3,298,538
4.800%   05/15/49     3,720   3,095,240
5.550%   11/30/48(a)     1,152   1,075,954
6.900%   05/15/53(a)     29,800   32,543,296
9.400%   05/15/39     351   471,038
DuPont de Nemours, Inc.,
Sr. Unsec’d. Notes
5.319%   11/15/38     17,688   18,239,492
5.419%   11/15/48     27,932   28,104,963
FMC Corp.,
Sr. Unsec’d. Notes
3.450%   10/01/29     1,627   1,503,255
4.500%   10/01/49     8,899   6,718,720
 
A4

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Chemicals (cont’d.)
6.375%   05/18/53     42,360   $40,885,795
Huntsman International LLC,
Sr. Unsec’d. Notes
2.950%   06/15/31     15,709   13,332,794
4.500%   05/01/29     19,700   18,875,739
LYB International Finance BV,
Gtd. Notes
5.250%   07/15/43     6   5,401
LYB International Finance III LLC,
Gtd. Notes
3.375%   10/01/40     4,533   3,344,634
3.625%   04/01/51(a)     11   7,376
4.200%   05/01/50     6,965   5,200,139
Mosaic Co. (The),
Sr. Unsec’d. Notes
5.625%   11/15/43(a)     3,506   3,378,097
Nutrien Ltd. (Canada),
Sr. Unsec’d. Notes
4.125%   03/15/35     7,241   6,496,381
4.200%   04/01/29     735   719,776
4.900%   06/01/43     1,200   1,068,836
5.000%   04/01/49     6,652   5,887,080
5.250%   01/15/45     4,832   4,469,251
5.625%   12/01/40     1,985   1,975,430
5.800%   03/27/53     39,720   39,021,734
Orbia Advance Corp. SAB de CV (Mexico),
Gtd. Notes, 144A
5.500%   01/15/48     2,445   1,967,614
Union Carbide Corp.,
Sr. Unsec’d. Notes
7.750%   10/01/96     500   605,630
Yara International ASA (Brazil),
Sr. Unsec’d. Notes, 144A
4.750%   06/01/28     19,450   19,233,911
              319,514,413
Commercial Services — 1.3%
California Institute of Technology,
Sr. Unsec’d. Notes
3.650%   09/01/2119     3,235   2,073,344
ERAC USA Finance LLC,
Gtd. Notes, 144A
3.300%   12/01/26     4,800   4,722,437
4.200%   11/01/46     32,800   26,875,595
5.625%   03/15/42     1,000   1,006,596
7.000%   10/15/37     3,623   4,123,527
Georgetown University (The),
Unsec’d. Notes, Series A
5.215%   10/01/2118     2,980   2,704,161
Leland Stanford Junior University (The),
Unsec’d. Notes
3.647%   05/01/48     12,125   9,439,438
Massachusetts Institute of Technology,
Unsec’d. Notes
3.885%   07/01/2116     370   262,016
4.678%   07/01/2114     12,715   10,829,846
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Commercial Services (cont’d.)
Northwestern University,
Unsec’d. Notes
4.643%   12/01/44     2,800   $2,600,843
Unsec’d. Notes, Series 2017
3.662%   12/01/57     17,262   12,883,083
President & Fellows of Harvard College,
Sr. Unsec’d. Notes
4.875%   10/15/40     429   422,259
Unsec’d. Notes
5.625%   10/01/38(a)     17,500   18,509,236
RELX Capital, Inc. (United Kingdom),
Gtd. Notes
5.250%   03/27/35     6,335   6,371,748
Trustees of Boston College,
Unsec’d. Notes
3.129%   07/01/52     3,007   2,070,135
Trustees of Princeton University (The),
Unsec’d. Notes
5.700%   03/01/39     3,000   3,199,201
Trustees of the University of Pennsylvania (The),
Sr. Unsec’d. Notes
4.674%   09/01/2112     6,976   5,936,549
University of Notre Dame du Lac,
Unsec’d. Notes, Series 2017
3.394%   02/15/48     6,475   4,871,161
Washington University (The),
Sr. Unsec’d. Notes
4.349%   04/15/2122     3,000   2,338,760
Sr. Unsec’d. Notes, Series 2022
3.524%   04/15/54     6,100   4,509,959
William Marsh Rice University,
Unsec’d. Notes
3.774%   05/15/55     3,500   2,663,300
              128,413,194
Computers — 1.2%
Apple, Inc.,
Sr. Unsec’d. Notes
2.375%   02/08/41     3,024   2,115,167
2.650%   05/11/50     3,495   2,200,942
2.650%   02/08/51     3,500   2,190,493
2.700%   08/05/51(a)     53,215   33,480,415
2.850%   08/05/61     61,959   37,646,809
2.950%   09/11/49     6,855   4,627,377
3.850%   08/04/46     40,406   32,900,052
3.950%   08/08/52(a)     3,795   3,052,472
Leidos, Inc.,
Gtd. Notes
4.375%   05/15/30     1,875   1,819,776
              120,033,503
Electric — 14.1%
AEP Texas, Inc.,
Sr. Unsec’d. Notes
3.800%   10/01/47     5,450   3,934,164
3.950%   06/01/28     6,240   6,113,831
 
A5

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Electric (cont’d.)
Sr. Unsec’d. Notes, 144A
3.850%   10/01/25     7,145   $7,096,809
Sr. Unsec’d. Notes, Series G
4.150%   05/01/49     3,465   2,633,230
AEP Transmission Co. LLC,
Sr. Unsec’d. Notes
3.100%   12/01/26     2,080   2,036,028
3.750%   12/01/47     10,015   7,550,876
3.800%   06/15/49     10,675   8,026,062
4.000%   12/01/46     5,000   3,980,406
Alabama Power Co.,
Sr. Unsec’d. Notes
4.150%   08/15/44     4,500   3,723,590
Ameren Illinois Co.,
First Mortgage
2.900%   06/15/51     2,810   1,783,394
3.700%   12/01/47     12,200   9,207,430
4.500%   03/15/49     1,155   980,319
5.900%   12/01/52     2,310   2,383,914
Sr. Sec’d. Notes
4.150%   03/15/46     7,760   6,404,529
Appalachian Power Co.,
Sr. Unsec’d. Notes
4.450%   06/01/45     6,600   5,365,073
Baltimore Gas & Electric Co.,
Sr. Unsec’d. Notes
3.750%   08/15/47     18,010   13,585,244
4.250%   09/15/48     14,575   11,805,671
Berkshire Hathaway Energy Co.,
Sr. Unsec’d. Notes
4.500%   02/01/45     9,990   8,609,620
CenterPoint Energy Houston Electric LLC,
General Ref. Mortgage
4.500%   04/01/44     10,260   8,937,793
CenterPoint Energy, Inc.,
Sr. Unsec’d. Notes
3.700%   09/01/49     8,960   6,403,536
4.250%   11/01/28     1,095   1,073,373
Cleco Corporate Holdings LLC,
Sr. Unsec’d. Notes
3.375%   09/15/29(a)     9,995   9,245,661
Cleveland Electric Illuminating Co. (The),
Sr. Unsec’d. Notes, 144A
4.550%   11/15/30     9,675   9,453,612
CMS Energy Corp.,
Sr. Unsec’d. Notes
4.875%   03/01/44     4,495   4,020,629
Commonwealth Edison Co.,
First Mortgage
3.000%   03/01/50     18,764   12,122,575
3.650%   06/15/46     15,161   11,372,865
3.700%   03/01/45     4,751   3,657,497
3.800%   10/01/42     3,615   2,871,811
4.000%   03/01/48     4,598   3,606,175
4.000%   03/01/49     4,240   3,284,885
4.350%   11/15/45     5,560   4,675,221
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Electric (cont’d.)
4.600%   08/15/43     2,000   $1,767,923
First Mortgage, Series 123
3.750%   08/15/47     10,400   7,859,430
First Mortgage, Series 127
3.200%   11/15/49     4,455   2,968,011
First Mortgage, Series 130
3.125%   03/15/51     805   527,216
First Mortgage, Series 131
2.750%   09/01/51     4,175   2,528,032
Connecticut Light & Power Co. (The),
First Mortgage
5.250%   01/15/53(a)     2,552   2,421,475
Consolidated Edison Co. of New York, Inc.,
Sr. Unsec’d. Notes
3.850%   06/15/46     625   484,361
3.950%   03/01/43     4,905   3,962,594
5.700%   06/15/40     860   874,032
Sr. Unsec’d. Notes, Series C
4.300%   12/01/56(a)     2,785   2,196,826
Consumers Energy Co.,
First Mortgage
3.750%   02/15/50     3,500   2,681,633
4.350%   04/15/49     1,550   1,309,162
4.350%   08/31/64     6,840   5,478,707
Dominion Energy South Carolina, Inc.,
First Mortgage
5.450%   02/01/41     3,000   2,961,808
6.250%   10/15/53     990   1,062,606
Dominion Energy, Inc.,
Sr. Unsec’d. Notes
4.700%   12/01/44     4,774   4,102,497
Sr. Unsec’d. Notes, Series C
3.375%   04/01/30(a)     5,173   4,831,725
4.050%   09/15/42     1,340   1,069,111
4.900%   08/01/41     8,810   7,947,316
DTE Electric Co.,
General Ref. Mortgage
3.700%   03/15/45     17,700   13,753,600
3.700%   06/01/46     1,305   1,001,800
3.750%   08/15/47     7,900   6,088,640
3.950%   06/15/42(a)     5,800   4,721,906
4.300%   07/01/44     3,975   3,387,142
General Ref. Mortgage, Series A
4.000%   04/01/43     3,535   2,926,938
Duke Energy Carolinas LLC,
First Mortgage
3.200%   08/15/49     39,520   26,653,526
3.450%   04/15/51     380   265,611
3.700%   12/01/47     7,456   5,585,731
3.950%   03/15/48     7,724   5,979,313
4.250%   12/15/41     12,900   11,027,090
6.050%   04/15/38     2,505   2,671,396
First Ref. Mortgage
2.950%   12/01/26     14,955   14,655,962
3.750%   06/01/45     17,780   13,759,663
 
A6

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Electric (cont’d.)
Duke Energy Corp.,
Sr. Unsec’d. Notes
3.750%   09/01/46     7,695   $5,669,082
Duke Energy Florida LLC,
First Mortgage
3.400%   10/01/46     8,280   5,921,039
Duke Energy Indiana LLC,
First Mortgage
5.400%   04/01/53     10,903   10,359,314
6.450%   04/01/39     7,100   7,776,625
First Mortgage, Series WWW
4.900%   07/15/43     7,564   6,894,851
Duke Energy Progress LLC,
First Mortgage
3.700%   10/15/46     20,295   15,229,082
4.100%   03/15/43     1,200   989,134
4.150%   12/01/44     4,802   3,928,905
5.700%   04/01/35     500   512,856
6.125%   09/15/33     4,400   4,685,051
El Paso Electric Co.,
Sr. Unsec’d. Notes
5.000%   12/01/44     4,800   4,212,384
Enel Finance International NV (Italy),
Gtd. Notes, 144A
2.125%   07/12/28     4,580   4,208,515
Entergy Louisiana LLC,
Collateral Trust
3.050%   06/01/31     2,500   2,274,719
4.200%   09/01/48     61,138   48,872,874
4.200%   04/01/50     530   422,649
Entergy Mississippi LLC,
First Mortgage
3.850%   06/01/49     3,123   2,334,725
Entergy Texas, Inc.,
First Mortgage
3.550%   09/30/49(a)     18,180   12,857,858
4.500%   03/30/39     15,760   14,248,566
Evergy Kansas Central, Inc.,
First Mortgage
3.250%   09/01/49     6,685   4,506,663
3.450%   04/15/50     4,420   3,078,572
4.100%   04/01/43     3,000   2,473,487
4.125%   03/01/42     3,010   2,525,470
4.250%   12/01/45     4,365   3,599,355
4.625%   09/01/43     2,780   2,391,861
Eversource Energy,
Sr. Unsec’d. Notes, Series M
3.300%   01/15/28     4,660   4,500,892
Exelon Corp.,
Sr. Unsec’d. Notes
4.450%   04/15/46     5,390   4,462,808
FirstEnergy Pennsylvania Electric Co.,
Sr. Unsec’d. Notes, 144A
3.250%   03/15/28     17,260   16,631,224
3.600%   06/01/29     10,000   9,561,376
4.300%   01/15/29     6,315   6,221,272
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Electric (cont’d.)
FirstEnergy Transmission LLC,
Sr. Unsec’d. Notes, 144A
5.450%   07/15/44     11,103   $10,815,575
Florida Power & Light Co.,
First Mortgage
2.875%   12/04/51     4,622   2,925,557
3.700%   12/01/47     3,870   2,940,168
3.950%   03/01/48(a)     22,070   17,498,645
3.990%   03/01/49     22,600   17,905,502
4.050%   10/01/44     4,104   3,384,946
5.800%   03/15/65     7,692   7,873,475
Fortis, Inc. (Canada),
Sr. Unsec’d. Notes
3.055%   10/04/26     4,737   4,630,465
Georgia Power Co.,
Sr. Unsec’d. Notes
4.300%   03/15/42     5,803   4,971,559
4.300%   03/15/43     10,900   9,240,228
5.400%   06/01/40     3,109   3,074,591
Sr. Unsec’d. Notes, Series 10-C
4.750%   09/01/40     1,900   1,755,746
Sr. Unsec’d. Notes, Series A
3.250%   03/15/51(a)     4,995   3,383,638
Indiana Michigan Power Co.,
Sr. Unsec’d. Notes, Series K
4.550%   03/15/46     7,235   6,150,047
Indianapolis Power & Light Co.,
First Mortgage, 144A
4.700%   09/01/45     13,200   11,311,149
Interstate Power & Light Co.,
Sr. Unsec’d. Notes
4.700%   10/15/43     675   589,218
IPALCO Enterprises, Inc.,
Sr. Sec’d. Notes
4.250%   05/01/30     4,290   4,084,744
ITC Holdings Corp.,
Sr. Unsec’d. Notes
3.250%   06/30/26     10,295   10,109,041
5.300%   07/01/43     1,000   934,160
MidAmerican Energy Co.,
First Mortgage
3.650%   04/15/29(a)     12,000   11,637,762
3.650%   08/01/48     22,370   16,727,213
4.250%   07/15/49     14,505   11,857,183
4.400%   10/15/44     18,980   16,342,758
Nevada Power Co.,
General Ref. Mortgage
6.000%   03/15/54     9,037   9,234,241
General Ref. Mortgage, Series CC
3.700%   05/01/29     8,350   8,106,408
General Ref. Mortgage, Series GG
5.900%   05/01/53     184   184,073
New England Power Co. (United Kingdom),
Sr. Unsec’d. Notes, 144A
3.800%   12/05/47     6,525   4,920,506
 
A7

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Electric (cont’d.)
Northern States Power Co.,
First Mortgage
2.900%   03/01/50     1,900   $1,224,304
3.400%   08/15/42     8,450   6,463,192
3.600%   05/15/46     17,056   12,831,346
3.600%   09/15/47(a)     11,350   8,459,405
4.000%   08/15/45     4,830   3,914,299
4.125%   05/15/44     8,520   7,061,048
5.650%   06/15/54     5,405   5,443,692
Ohio Edison Co.,
First Mortgage
8.250%   10/15/38     2,722   3,421,678
Oklahoma Gas & Electric Co.,
Sr. Unsec’d. Notes
4.000%   12/15/44     9,000   7,135,311
4.550%   03/15/44     1,325   1,170,504
Oncor Electric Delivery Co. LLC,
Sr. Sec’d. Notes
3.700%   05/15/50     27,148   19,756,284
Pacific Gas & Electric Co.,
First Mortgage
3.300%   08/01/40     2,185   1,602,955
3.950%   12/01/47     36,215   26,429,546
4.000%   12/01/46     22,088   16,248,284
4.250%   03/15/46     10,000   7,787,725
4.300%   03/15/45     10,000   7,817,431
4.500%   07/01/40     28,445   24,138,701
4.750%   02/15/44     8,542   7,098,436
4.950%   07/01/50     17,166   14,313,599
PacifiCorp,
First Mortgage
2.700%   09/15/30     8,309   7,438,931
4.125%   01/15/49     39,567   30,508,355
4.150%   02/15/50     14,140   10,905,678
5.350%   12/01/53     14,503   13,284,403
PECO Energy Co.,
First Mortgage
2.800%   06/15/50     6,070   3,814,652
3.000%   09/15/49     3,922   2,595,070
3.050%   03/15/51     1,200   781,031
3.700%   09/15/47     7,507   5,694,479
3.900%   03/01/48     10,494   8,206,505
4.600%   05/15/52     1,545   1,324,009
First Ref. Mortgage
4.800%   10/15/43     1,575   1,421,181
PPL Electric Utilities Corp.,
First Mortgage
3.000%   10/01/49     4,105   2,734,068
3.950%   06/01/47     28,190   22,491,907
4.125%   06/15/44     4,450   3,721,112
6.250%   05/15/39     500   550,324
Progress Energy, Inc.,
Sr. Unsec’d. Notes
7.000%   10/30/31     23,950   26,641,675
7.750%   03/01/31     8,824   10,063,845
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Electric (cont’d.)
Public Service Co. of Colorado,
First Mortgage
3.550%   06/15/46     9,880   $7,149,115
3.700%   06/15/28     2,000   1,956,439
4.100%   06/15/48     4,735   3,679,403
4.300%   03/15/44     165   136,865
5.250%   04/01/53     6,550   6,036,424
Public Service Electric & Gas Co.,
First Mortgage, Series I, MTN
4.000%   06/01/44(a)     2,000   1,604,295
Puget Energy, Inc.,
Sr. Sec’d. Notes
3.650%   05/15/25     16,900   16,862,357
Puget Sound Energy, Inc.,
Sr. Sec’d. Notes
4.434%   11/15/41     1,787   1,508,623
San Diego Gas & Electric Co.,
First Mortgage
4.150%   05/15/48     31,545   24,747,973
5.350%   05/15/35     6,997   7,038,836
5.350%   05/15/40     773   745,506
6.000%   06/01/39     5,700   5,961,039
First Mortgage, Series RRR
3.750%   06/01/47     2,866   2,131,048
First Mortgage, Series TTT
4.100%   06/15/49     5,875   4,568,614
Sempra,
Sr. Unsec’d. Notes
3.250%   06/15/27     14,765   14,306,281
3.400%   02/01/28     19,265   18,613,081
Sierra Pacific Power Co.,
General Ref. Mortgage
5.900%   03/15/54     5,000   5,033,709
Southern California Edison Co.,
First Mortgage
3.650%   02/01/50     26,242   18,224,391
First Ref. Mortgage
4.000%   04/01/47     28,115   20,930,016
4.050%   03/15/42     7,200   5,656,864
4.650%   10/01/43     1,950   1,634,379
5.500%   03/15/40     11,962   11,338,067
First Ref. Mortgage, Series 13-A
3.900%   03/15/43     5,000   3,797,042
First Ref. Mortgage, Series C
3.600%   02/01/45     4,330   3,090,972
4.125%   03/01/48     5,150   3,879,307
Southern Co. (The),
Sr. Unsec’d. Notes
4.250%   07/01/36     13,865   12,587,100
Southwestern Public Service Co.,
First Mortgage
3.700%   08/15/47     4,470   3,272,657
4.500%   08/15/41     550   475,487
Tampa Electric Co.,
Sr. Unsec’d. Notes
4.350%   05/15/44     7,325   6,181,201
 
A8

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Electric (cont’d.)
Toledo Edison Co. (The),
Sr. Sec’d. Notes
6.150%   05/15/37     1,997   $2,160,065
Union Electric Co.,
Sr. Sec’d. Notes
3.650%   04/15/45     9,175   7,004,341
Virginia Electric & Power Co.,
Sr. Unsec’d. Notes
4.000%   01/15/43     1,399   1,134,025
4.450%   02/15/44     1,210   1,035,271
4.600%   12/01/48     635   542,828
Sr. Unsec’d. Notes, Series A
3.500%   03/15/27     2,765   2,721,432
3.800%   04/01/28(a)     5,815   5,712,562
Sr. Unsec’d. Notes, Series C
4.625%   05/15/52     22,842   19,248,321
Sr. Unsec’d. Notes, Series D
4.650%   08/15/43     1,335   1,183,070
Vistra Operations Co. LLC,
Sr. Sec’d. Notes, 144A
3.700%   01/30/27(a)     24,065   23,553,647
4.300%   07/15/29     6,970   6,741,444
Wisconsin Electric Power Co.,
Sr. Unsec’d. Notes
4.250%   06/01/44     850   700,231
Wisconsin Public Service Corp.,
Sr. Unsec’d. Notes
4.752%   11/01/44     5,000   4,513,484
Xcel Energy, Inc.,
Sr. Unsec’d. Notes
3.350%   12/01/26(a)     5,145   5,041,903
              1,398,333,093
Electronics — 0.0%
Fortive Corp.,
Sr. Unsec’d. Notes
4.300%   06/15/46     3,225   2,639,975
Engineering & Construction — 0.2%
Mexico City Airport Trust (Mexico),
Sr. Sec’d. Notes, 144A
4.250%   10/31/26     5,007   4,918,877
5.500%   07/31/47     15,700   12,903,516
              17,822,393
Entertainment — 0.6%
Warnermedia Holdings, Inc.,
Gtd. Notes
4.054%   03/15/29     6,000   5,651,732
5.050%   03/15/42(a)     38,185   30,521,673
5.141%   03/15/52     28,197   20,553,031
              56,726,436
Environmental Control — 0.1%
Republic Services, Inc.,
Sr. Unsec’d. Notes
6.200%   03/01/40     5,000   5,399,645
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Foods — 1.7%
Ahold Finance USA LLC (Netherlands),
Gtd. Notes
6.875%   05/01/29     509   $550,751
JBS USA Holding Lux Sarl/JBS USA Food Co./JBS Lux Co. Sarl,
Gtd. Notes
3.000%   05/15/32     4,920   4,226,377
4.375%   02/02/52(a)     16,656   12,880,183
JBS USA LUX Sarl/JBS USA Food Co./JBS USA Foods Group,
Gtd. Notes, 144A
6.375%   02/25/55     8,310   8,557,795
Kraft Heinz Foods Co.,
Gtd. Notes
3.000%   06/01/26(a)     3,117   3,061,514
4.375%   06/01/46     8,181   6,688,670
4.625%   10/01/39     3,500   3,174,239
5.200%   07/15/45     15,870   14,545,604
Gtd. Notes, 144A
7.125%   08/01/39     5,165   5,878,597
Kroger Co. (The),
Sr. Unsec’d. Notes
4.650%   01/15/48     1,753   1,491,124
5.000%   04/15/42     1,150   1,069,080
5.150%   08/01/43     450   419,050
Mars, Inc.,
Gtd. Notes, 144A
3.950%   04/01/44     22,980   18,736,020
4.125%   04/01/54     11,735   9,291,190
4.200%   04/01/59     10,575   8,165,987
Sr. Unsec’d. Notes, 144A
2.375%   07/16/40     6,188   4,297,915
5.700%   05/01/55(a)     21,440   21,404,468
5.800%   05/01/65     5,755   5,765,036
Nestle Holdings, Inc.,
Gtd. Notes, 144A
3.900%   09/24/38     20,000   17,678,869
Sysco Corp.,
Gtd. Notes
3.300%   07/15/26     6,265   6,169,593
4.500%   04/01/46     4,255   3,550,050
Tyson Foods, Inc.,
Sr. Unsec’d. Notes
3.550%   06/02/27     14,835   14,539,036
              172,141,148
Gas — 1.3%
Atmos Energy Corp.,
Sr. Unsec’d. Notes
3.375%   09/15/49     13,650   9,507,280
6.200%   11/15/53     2,436   2,605,209
CenterPoint Energy Resources Corp.,
Sr. Unsec’d. Notes
4.100%   09/01/47(a)     2,895   2,349,799
NiSource, Inc.,
Sr. Unsec’d. Notes
4.800%   02/15/44     6,745   5,972,431
5.650%   02/01/45     2,260   2,199,804
 
A9

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Gas (cont’d.)
ONE Gas, Inc.,
Sr. Unsec’d. Notes
4.500%   11/01/48     14,125   $11,783,326
Piedmont Natural Gas Co., Inc.,
Sr. Unsec’d. Notes
3.500%   06/01/29     12,500   11,958,694
4.650%   08/01/43     5,960   5,187,335
Southern California Gas Co.,
First Mortgage
4.450%   03/15/44     2,500   2,105,135
First Mortgage, Series VV
4.300%   01/15/49(a)     8,650   6,933,690
First Mortgage, Series WW
3.950%   02/15/50     26,720   20,232,047
First Mortgage, Series XX
2.550%   02/01/30(a)     1,835   1,664,437
Sr. Sec’d. Notes, Series UU
4.125%   06/01/48     11,445   8,883,159
Southern Co. Gas Capital Corp.,
Gtd. Notes
3.250%   06/15/26     9,414   9,278,773
3.950%   10/01/46     5,520   4,231,271
4.400%   06/01/43     750   635,170
4.400%   05/30/47     27,369   22,347,451
              127,875,011
Healthcare-Products — 0.3%
Alcon Finance Corp.,
Gtd. Notes, 144A
5.750%   12/06/52     3,955   3,943,675
DH Europe Finance II Sarl,
Gtd. Notes
1.350%   09/18/39   EUR 5,215   4,020,310
Medtronic, Inc.,
Gtd. Notes
4.150%   10/15/53   EUR 4,685   4,909,861
4.625%   03/15/45     1   897
Thermo Fisher Scientific, Inc.,
Sr. Unsec’d. Notes
2.800%   10/15/41     2,485   1,777,949
Sr. Unsec’d. Notes, EMTN
1.875%   10/01/49   EUR 15,500   10,721,971
              25,374,663
Healthcare-Services — 4.3%
Advocate Health & Hospitals Corp.,
Sr. Unsec’d. Notes
3.829%   08/15/28     7,005   6,855,393
4.272%   08/15/48     8,950   7,597,342
Ascension Health,
Sr. Unsec’d. Notes
3.945%   11/15/46     3,338   2,708,970
Baylor Scott & White Holdings,
Sec’d. Notes
3.967%   11/15/46     17,663   14,412,413
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Healthcare-Services (cont’d.)
Children’s Hospital Corp. (The),
Gtd. Notes, Series 2017
4.115%   01/01/47     6,650   $5,583,860
Cigna Group (The),
Gtd. Notes
3.400%   03/01/27     17,240   16,908,337
3.875%   10/15/47     4,350   3,242,441
4.375%   10/15/28     25,005   24,817,827
4.500%   02/25/26     11,024   11,023,612
4.800%   07/15/46     37,885   32,942,616
4.900%   12/15/48(a)     5,308   4,630,287
5.375%   02/15/42     3,650   3,456,890
Sr. Unsec’d. Notes
2.375%   03/15/31     16,605   14,488,355
3.200%   03/15/40     9,125   6,913,228
Cleveland Clinic Foundation (The),
Unsec’d. Notes
4.858%   01/01/2114     2,875   2,473,273
Dartmouth-Hitchcock Health,
Sec’d. Notes, Series B
4.178%   08/01/48     12,000   9,401,035
Duke University Health System, Inc.,
Sr. Unsec’d. Notes, Series 2017
3.920%   06/01/47     3,265   2,604,412
Elevance Health, Inc.,
Sr. Unsec’d. Notes
3.600%   03/15/51     3,360   2,379,612
3.700%   09/15/49     8,819   6,380,118
4.625%   05/15/42     2,600   2,290,759
4.650%   01/15/43     1,000   879,466
4.850%   08/15/54     510   432,849
5.100%   01/15/44     720   664,745
5.850%   11/01/64(a)     16,830   16,436,417
HCA, Inc.,
Gtd. Notes
4.625%   03/15/52     3,740   2,969,232
5.250%   04/15/25     3,500   3,497,820
5.875%   02/01/29     5,400   5,566,365
Indiana University Health, Inc. Obligated Group,
Sec’d. Notes
3.970%   11/01/48     21,125   16,859,214
Kaiser Foundation Hospitals,
Gtd. Notes
4.150%   05/01/47     10,969   9,105,746
4.875%   04/01/42     1,000   932,974
Unsec’d. Notes, Series 2021
3.002%   06/01/51     11,245   7,306,049
Memorial Sloan-Kettering Cancer Center,
Unsec’d. Notes, Series 2020
2.955%   01/01/50(a)     3,405   2,241,250
MultiCare Health System,
Unsec’d. Notes
2.803%   08/15/50     2,840   1,712,071
MyMichigan Health,
Sec’d. Notes, Series 2020
3.409%   06/01/50     5,230   3,727,835
 
A10

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Healthcare-Services (cont’d.)
Nationwide Children’s Hospital, Inc.,
Unsec’d. Notes
4.556%   11/01/52(a)     2,800   $2,451,055
New York & Presbyterian Hospital (The),
Unsec’d. Notes
4.063%   08/01/56     640   502,378
Unsec’d. Notes, Series 2019
3.954%   08/01/2119     2,225   1,552,507
NYU Langone Hospitals,
Sec’d. Notes
4.368%   07/01/47     12,075   10,372,113
4.784%   07/01/44     7,305   6,763,368
Sr. Sec’d. Notes, Series 13-A
5.750%   07/01/43     700   724,085
OhioHealth Corp.,
Unsec’d. Notes, Series 2020
3.042%   11/15/50     1,005   682,018
Orlando Health Obligated Group,
Sr. Unsec’d. Notes
3.327%   10/01/50     3,300   2,358,770
Unsec’d. Notes
4.089%   10/01/48     2,208   1,798,293
PeaceHealth Obligated Group,
Sr. Unsec’d. Notes, Series 2020
3.218%   11/15/50     2,285   1,495,517
Quest Diagnostics, Inc.,
Sr. Unsec’d. Notes
2.950%   06/30/30(a)     10,560   9,694,870
3.450%   06/01/26     4,715   4,660,539
5.750%   01/30/40     1,251   1,249,900
6.950%   07/01/37     1,704   1,924,690
Roche Holdings, Inc.,
Gtd. Notes, 144A
2.607%   12/13/51     9,985   6,029,801
Southern Baptist Hospital of Florida, Inc.,
Sec’d. Notes
4.857%   07/15/45     3,150   2,859,699
Sutter Health,
Unsec’d. Notes, Series 2018
3.695%   08/15/28     2,400   2,339,113
Texas Health Resources,
Sec’d. Notes
4.330%   11/15/55     5,400   4,517,077
Sr. Unsec’d. Notes
2.328%   11/15/50     5,688   3,259,063
UnitedHealth Group, Inc.,
Sr. Unsec’d. Notes
3.050%   05/15/41     5,000   3,680,298
3.950%   10/15/42     2,060   1,683,951
4.250%   04/15/47     13,715   11,284,871
4.450%   12/15/48     2,000   1,668,222
4.625%   11/15/41     4,601   4,124,627
4.750%   07/15/45     6,770   6,050,028
4.750%   05/15/52     10,905   9,416,910
4.950%   05/15/62     7,570   6,567,986
5.200%   04/15/63     35,500   32,006,114
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Healthcare-Services (cont’d.)
5.375%   04/15/54     6,532   $6,187,082
5.500%   07/15/44     3,255   3,205,543
5.750%   07/15/64     20,375   20,054,988
5.800%   03/15/36(a)     3,945   4,160,138
              428,768,427
Home Builders — 0.0%
Toll Brothers Finance Corp.,
Gtd. Notes
4.875%   11/15/25     915   915,014
Household Products/Wares — 0.0%
SC Johnson & Son, Inc.,
Sr. Unsec’d. Notes, 144A
4.000%   05/15/43     425   341,207
Insurance — 2.6%
Allstate Corp. (The),
Sub. Notes, Series B, 3 Month SOFR + 3.200%
7.523%(c)   08/15/53     800   800,120
Arch Capital Group US, Inc.,
Gtd. Notes
5.144%   11/01/43     8,532   7,907,078
Arthur J Gallagher & Co.,
Sr. Unsec’d. Notes
5.550%   02/15/55(a)     2,180   2,091,886
Berkshire Hathaway Finance Corp.,
Gtd. Notes
4.300%   05/15/43     2,895   2,551,454
Chubb INA Holdings LLC,
Gtd. Notes
2.850%   12/15/51     8,570   5,472,844
3.050%   12/15/61     10,935   6,701,489
Everest Reinsurance Holdings, Inc.,
Sr. Unsec’d. Notes
3.125%   10/15/52     15,000   9,176,261
3.500%   10/15/50     5,045   3,391,993
4.868%   06/01/44     14,360   12,599,649
Fairfax Financial Holdings Ltd. (Canada),
Sr. Unsec’d. Notes
6.350%   03/22/54     4,130   4,188,950
Sr. Unsec’d. Notes, 144A
6.100%   03/15/55     25,995   25,565,638
Hartford Insurance Group, Inc. (The),
Sr. Unsec’d. Notes
2.800%   08/19/29     465   429,903
Liberty Mutual Group, Inc.,
Gtd. Notes, 144A
3.950%   05/15/60     9,999   6,799,041
3.951%   10/15/50     36,115   26,364,452
4.569%   02/01/29(a)     5,880   5,833,456
Lincoln National Corp.,
Sr. Unsec’d. Notes
6.300%   10/09/37     4,385   4,575,643
7.000%   06/15/40     6,248   7,025,100
Markel Group, Inc.,
Sr. Unsec’d. Notes
3.450%   05/07/52     11,395   7,704,604
 
A11

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Insurance (cont’d.)
3.500%   11/01/27     5,000   $4,876,334
4.150%   09/17/50     8,815   6,761,586
4.300%   11/01/47     4,479   3,583,374
5.000%   03/30/43     100   89,796
5.000%   04/05/46     2,360   2,089,621
5.000%   05/20/49     18,590   16,385,947
Marsh & McLennan Cos., Inc.,
Sr. Unsec’d. Notes
5.400%   03/15/55(a)     16,745   16,134,362
New York Life Insurance Co.,
Sub. Notes, 144A
3.750%   05/15/50(a)     4,485   3,300,726
Sompo International Holdings Ltd. (Bermuda),
Sr. Unsec’d. Notes
7.000%   07/15/34     1,700   1,884,525
Teachers Insurance & Annuity Association of America,
Sub. Notes, 144A
4.270%   05/15/47     26,445   21,513,191
4.900%   09/15/44     350   314,285
Unum Group,
Sr. Unsec’d. Notes
4.125%   06/15/51     39,768   29,753,611
5.750%   08/15/42     5,540   5,463,884
7.250%   03/15/28     2,707   2,875,526
W.R. Berkley Corp.,
Sr. Unsec’d. Notes
4.750%   08/01/44     2,675   2,369,171
XL Group Ltd. (Bermuda),
Sr. Unsec’d. Notes
5.250%   12/15/43     2,962   2,823,695
              259,399,195
Internet — 0.6%
Amazon.com, Inc.,
Sr. Unsec’d. Notes
3.250%   05/12/61     23,000   15,153,082
Meta Platforms, Inc.,
Sr. Unsec’d. Notes
5.400%   08/15/54     13,385   13,116,866
5.550%   08/15/64     11,425   11,239,051
Prosus NV (China),
Sr. Unsec’d. Notes, 144A
3.680%   01/21/30     3,715   3,425,750
Uber Technologies, Inc.,
Sr. Unsec’d. Notes
5.350%   09/15/54(a)     14,040   13,141,791
              56,076,540
Lodging — 0.6%
Marriott International, Inc.,
Sr. Unsec’d. Notes
4.500%   10/01/34     13,500   12,624,955
5.000%   10/15/27(a)     12,845   13,007,801
5.500%   04/15/37(a)     10,820   10,686,646
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Lodging (cont’d.)
Sr. Unsec’d. Notes, Series R
3.125%   06/15/26     22,630   $22,244,977
              58,564,379
Machinery-Diversified — 0.5%
Deere & Co.,
Sr. Unsec’d. Notes
3.900%   06/09/42(a)     3,500   2,957,315
Westinghouse Air Brake Technologies Corp.,
Gtd. Notes
4.700%   09/15/28     45,076   45,161,471
              48,118,786
Media — 3.5%
Belo Corp.,
Gtd. Notes
7.250%   09/15/27     150   154,567
Charter Communications Operating LLC/Charter Communications Operating Capital,
Sr. Sec’d. Notes
4.800%   03/01/50     65   48,981
5.375%   04/01/38     13,155   11,848,739
5.375%   05/01/47     41,367   34,195,837
5.750%   04/01/48     41,760   36,018,380
6.484%   10/23/45     10,574   10,014,513
Comcast Corp.,
Gtd. Notes
2.887%   11/01/51     34,931   21,271,513
2.937%   11/01/56     56,194   32,998,588
3.250%   11/01/39     54,500   42,245,127
3.400%   07/15/46     4,867   3,483,292
3.450%   02/01/50     54,000   37,442,743
3.750%   04/01/40     14,385   11,797,685
3.900%   03/01/38     18,880   16,209,240
3.969%   11/01/47     20,719   16,001,613
3.999%   11/01/49     9,318   7,119,848
4.000%   03/01/48     13,223   10,195,305
5.350%   05/15/53(a)     2,750   2,563,460
5.500%   05/15/64     1,760   1,647,616
Cox Communications, Inc.,
Gtd. Notes, 144A
5.950%   09/01/54(a)     7,800   7,208,818
Discovery Communications LLC,
Gtd. Notes
3.950%   06/15/25     3,800   3,790,789
4.125%   05/15/29     11,100   10,474,368
Paramount Global,
Sr. Unsec’d. Notes
3.700%   06/01/28     2,130   2,052,751
Time Warner Cable LLC,
Sr. Sec’d. Notes
5.500%   09/01/41     3,050   2,636,220
5.875%   11/15/40     8,615   7,885,057
6.550%   05/01/37     2,785   2,758,911
6.750%   06/15/39     3,678   3,672,333
 
A12

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Media (cont’d.)
Walt Disney Co. (The),
Gtd. Notes
5.400%   10/01/43     9,675   $9,581,116
7.700%   10/30/25     729   741,539
              346,058,949
Mining — 2.3%
AngloGold Ashanti Holdings PLC (Australia),
Gtd. Notes
3.375%   11/01/28     12,250   11,518,828
Barrick Gold Corp. (Canada),
Sr. Unsec’d. Notes
6.450%   10/15/35     5,000   5,454,982
Barrick International Barbados Corp. (Canada),
Gtd. Notes, 144A
6.350%   10/15/36     22,700   24,369,867
Barrick North America Finance LLC (Canada),
Gtd. Notes
5.700%   05/30/41     7,751   7,686,905
5.750%   05/01/43     7,399   7,392,805
7.500%   09/15/38     10,946   12,733,369
Barrick PD Australia Finance Pty Ltd. (Canada),
Gtd. Notes
5.950%   10/15/39     27,086   27,624,995
BHP Billiton Finance USA Ltd. (Australia),
Gtd. Notes
5.125%   02/21/32     11,300   11,374,694
Freeport-McMoRan, Inc.,
Gtd. Notes
5.450%   03/15/43(a)     17,500   16,436,044
Kinross Gold Corp. (Canada),
Gtd. Notes
4.500%   07/15/27     17,887   17,793,380
6.875%   09/01/41     11,304   12,143,150
Sr. Unsec’d. Notes
6.250%   07/15/33     9,600   10,093,590
Newmont Corp.,
Gtd. Notes
2.250%   10/01/30     4,462   3,946,669
5.875%   04/01/35     4,000   4,192,146
6.250%   10/01/39     4,050   4,348,471
Rio Tinto Finance USA Ltd. (Australia),
Gtd. Notes
2.750%   11/02/51     6,301   3,831,362
5.200%   11/02/40     860   837,180
Rio Tinto Finance USA PLC (Australia),
Gtd. Notes
4.125%   08/21/42     785   656,447
4.750%   03/22/42     1,562   1,418,206
5.750%   03/14/55     10,390   10,347,713
5.875%   03/14/65     6,370   6,434,017
South32 Treasury Ltd. (Australia),
Gtd. Notes, 144A
4.350%   04/14/32     4,800   4,478,485
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Mining (cont’d.)
Southern Copper Corp. (Mexico),
Sr. Unsec’d. Notes
6.750%   04/16/40     8,475   $9,165,374
WMC Finance USA Ltd. (Australia),
Gtd. Notes
6.250%   05/15/33     2,000   2,121,096
Yamana Gold, Inc. (Canada),
Gtd. Notes
2.630%   08/15/31     6,059   5,215,856
4.625%   12/15/27     5,811   5,748,717
              227,364,348
Miscellaneous Manufacturing — 0.3%
Hillenbrand, Inc.,
Gtd. Notes
5.000%   09/15/26     11,200   11,095,734
Parker-Hannifin Corp.,
Sr. Unsec’d. Notes
3.250%   06/14/29     4,175   3,974,509
Siemens Financieringsmaatschappij NV (Germany),
Gtd. Notes, 144A
2.875%   03/11/41     6,185   4,572,145
4.400%   05/27/45     4,260   3,732,286
Textron, Inc.,
Sr. Unsec’d. Notes
4.000%   03/15/26     9,045   8,982,110
              32,356,784
Office/Business Equipment — 0.5%
CDW LLC/CDW Finance Corp.,
Gtd. Notes
2.670%   12/01/26     46,065   44,501,689
Oil & Gas — 6.3%
Aker BP ASA (Norway),
Gtd. Notes, 144A
3.100%   07/15/31     12,543   11,030,435
Sr. Unsec’d. Notes, 144A
3.750%   01/15/30     3,883   3,667,004
5.800%   10/01/54     20,300   18,441,480
6.000%   06/13/33     24,010   24,482,925
BP Capital Markets America, Inc.,
Gtd. Notes
3.119%   05/04/26     6,752   6,659,524
Canadian Natural Resources Ltd. (Canada),
Sr. Unsec’d. Notes
6.250%   03/15/38     32,565   33,762,519
6.450%   06/30/33     2,000   2,113,414
6.500%   02/15/37     370   387,407
6.750%   02/01/39     2,910   3,126,789
Sr. Unsec’d. Notes, 144A
5.400%   12/15/34(a)     4,358   4,290,211
Cenovus Energy, Inc. (Canada),
Sr. Unsec’d. Notes
3.750%   02/15/52     16,394   11,248,518
5.250%   06/15/37     2,231   2,141,284
5.400%   06/15/47     42,322   37,640,721
 
A13

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Oil & Gas (cont’d.)
6.750%   11/15/39     11,798   $12,688,527
Chevron USA, Inc.,
Gtd. Notes
5.250%   11/15/43     1,101   1,093,914
6.000%   03/01/41     3,550   3,824,519
ConocoPhillips Co.,
Gtd. Notes
3.758%   03/15/42     6,810   5,434,585
3.800%   03/15/52     27,200   20,078,728
4.025%   03/15/62     116   84,367
4.150%   11/15/34     847   789,572
4.300%   11/15/44     3,330   2,792,783
5.000%   01/15/35(a)     4,765   4,716,947
5.300%   05/15/53     27,835   26,025,682
5.650%   01/15/65     7,275   7,013,229
5.700%   09/15/63     12,905   12,521,205
Devon Energy Corp.,
Sr. Unsec’d. Notes
4.750%   05/15/42     3,675   3,077,133
5.000%   06/15/45     14,051   11,921,755
5.600%   07/15/41     21,825   20,347,039
5.875%   06/15/28     7,125   7,142,873
Diamondback Energy, Inc.,
Gtd. Notes
3.250%   12/01/26     11,145   10,929,979
4.250%   03/15/52     9,165   6,953,066
4.400%   03/24/51     21,950   17,144,371
5.750%   04/18/54     8,766   8,252,969
5.900%   04/18/64     7,000   6,571,721
6.250%   03/15/53     28,900   28,959,306
EOG Resources, Inc.,
Sr. Unsec’d. Notes
3.900%   04/01/35     4,067   3,704,023
Equinor ASA (Norway),
Gtd. Notes
2.375%   05/22/30     3,260   2,939,006
3.250%   11/18/49     6,000   4,170,145
3.625%   04/06/40     1,380   1,146,374
3.950%   05/15/43     2,796   2,334,651
Exxon Mobil Corp.,
Sr. Unsec’d. Notes
3.095%   08/16/49(a)     13,000   8,821,798
3.567%   03/06/45     4,370   3,350,597
Marathon Petroleum Corp.,
Sr. Unsec’d. Notes
5.000%   09/15/54     11,375   9,300,552
5.125%   12/15/26     13,890   13,997,269
6.500%   03/01/41     6,214   6,436,415
Occidental Petroleum Corp.,
Sr. Unsec’d. Notes
4.100%   02/15/47     3,000   2,057,867
4.200%   03/15/48     21,150   15,093,063
6.200%   03/15/40     12,322   12,194,135
6.450%   09/15/36     5,522   5,681,291
7.500%   05/01/31(a)     4,290   4,728,878
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Oil & Gas (cont’d.)
Ovintiv, Inc.,
Gtd. Notes
7.375%   11/01/31     1,000   $1,096,426
Petroleos Mexicanos (Mexico),
Gtd. Notes
5.350%   02/12/28(a)     6,575   6,091,737
6.350%   02/12/48     2,025   1,336,297
7.690%   01/23/50     12,200   9,111,570
Phillips 66,
Gtd. Notes
2.150%   12/15/30     10,600   9,203,261
3.300%   03/15/52(a)     1,380   881,085
Phillips 66 Co.,
Gtd. Notes
3.550%   10/01/26(a)     11,680   11,519,959
4.680%   02/15/45     500   420,503
4.900%   10/01/46     810   696,195
5.500%   03/15/55(a)     3,059   2,784,025
5.650%   06/15/54(a)     21,628   20,085,415
Pioneer Natural Resources Co.,
Sr. Unsec’d. Notes
1.900%   08/15/30     4,820   4,193,863
Range Resources Corp.,
Gtd. Notes
4.875%   05/15/25     10,000   9,991,130
Shell Finance US, Inc.,
Gtd. Notes
4.000%   05/10/46     3,000   2,395,929
Suncor Energy, Inc. (Canada),
Sr. Unsec’d. Notes
3.750%   03/04/51(a)     9,853   6,923,678
5.950%   12/01/34     1,000   1,030,959
6.800%   05/15/38     5,051   5,454,479
TotalEnergies Capital International SA (France),
Gtd. Notes
3.455%   02/19/29(a)     17,441   16,897,263
TotalEnergies Capital SA (France),
Gtd. Notes
5.425%   09/10/64     11,180   10,463,881
5.638%   04/05/64(a)     2,055   2,008,502
Valero Energy Corp.,
Sr. Unsec’d. Notes
3.650%   12/01/51     9,355   6,314,639
4.350%   06/01/28(a)     25,440   25,257,953
              627,471,314
Oil & Gas Services — 0.3%
Cameron International Corp.,
Gtd. Notes
7.000%   07/15/38     4,000   4,383,250
Halliburton Co.,
Sr. Unsec’d. Notes
4.750%   08/01/43     9,350   8,191,509
5.000%   11/15/45(a)     1,835   1,650,747
 
A14

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Oil & Gas Services (cont’d.)
Schlumberger Holdings Corp.,
Sr. Unsec’d. Notes, 144A
3.900%   05/17/28(a)     18,479   $18,189,440
              32,414,946
Packaging & Containers — 0.1%
Amcor Flexibles North America, Inc.,
Gtd. Notes
2.630%   06/19/30     2,715   2,432,979
Smurfit Westrock Financing DAC (Ireland),
Gtd. Notes, 144A
5.418%   01/15/35     5,000   5,016,638
              7,449,617
Pharmaceuticals — 5.0%
AbbVie, Inc.,
Sr. Unsec’d. Notes
4.050%   11/21/39     91,680   80,432,568
4.300%   05/14/36     2,500   2,336,534
4.400%   11/06/42     7,200   6,358,353
4.500%   05/14/35     4,945   4,742,316
4.550%   03/15/35     42,638   41,156,060
4.625%   10/01/42     3,115   2,827,146
4.700%   05/14/45     16,174   14,579,845
4.875%   11/14/48     3,812   3,484,817
5.500%   03/15/64     875   860,848
Bristol-Myers Squibb Co.,
Sr. Unsec’d. Notes
2.350%   11/13/40     11,500   7,836,224
3.400%   07/26/29(a)     5,204   4,991,526
3.700%   03/15/52     3,330   2,452,899
3.900%   03/15/62     15,215   10,995,999
4.250%   10/26/49     14,610   11,925,846
4.350%   11/15/47     22,307   18,655,614
4.550%   02/20/48     8,519   7,351,353
5.650%   02/22/64     4,865   4,767,616
CVS Health Corp.,
Sr. Unsec’d. Notes
3.250%   08/15/29     57,035   53,244,693
3.875%   07/20/25     1,178   1,175,572
4.300%   03/25/28     9,442   9,324,715
4.780%   03/25/38     40,326   36,262,223
5.125%   07/20/45     41,205   35,935,082
5.300%   12/05/43     20,115   18,043,343
6.250%   06/01/27     1,000   1,032,795
Eli Lilly & Co.,
Sr. Unsec’d. Notes
1.700%   11/01/49   EUR 12,000   8,763,720
4.950%   02/27/63     3,000   2,729,552
5.000%   02/09/54     4,775   4,484,973
5.100%   02/09/64     11,435   10,645,447
5.200%   08/14/64     5,880   5,566,309
GlaxoSmithKline Capital, Inc. (United Kingdom),
Gtd. Notes
6.375%   05/15/38     10,000   10,990,448
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Pharmaceuticals (cont’d.)
Johnson & Johnson,
Sr. Unsec’d. Notes
2.100%   09/01/40(a)     8,585   $5,907,983
3.400%   01/15/38     4,365   3,730,739
3.625%   03/03/37     6,385   5,677,329
Mead Johnson Nutrition Co. (United Kingdom),
Gtd. Notes
4.125%   11/15/25     3,175   3,169,228
Merck & Co., Inc.,
Sr. Unsec’d. Notes
2.750%   12/10/51(a)     4,188   2,598,865
Mylan, Inc.,
Gtd. Notes
5.400%   11/29/43     4,169   3,481,187
Novartis Capital Corp.,
Gtd. Notes
4.000%   11/20/45     4,625   3,859,813
Shire Acquisitions Investments Ireland DAC,
Gtd. Notes
3.200%   09/23/26     110   107,990
Takeda Pharmaceutical Co. Ltd. (Japan),
Sr. Unsec’d. Notes
3.025%   07/09/40     2,375   1,755,863
Utah Acquisition Sub, Inc.,
Gtd. Notes
5.250%   06/15/46     41,068   32,724,110
Viatris, Inc.,
Gtd. Notes
3.850%   06/22/40     4,605   3,345,552
4.000%   06/22/50(a)     5,990   3,910,710
              494,223,805
Pipelines — 9.1%
Boardwalk Pipelines LP,
Gtd. Notes
3.400%   02/15/31     4,460   4,063,080
Buckeye Partners LP,
Sr. Unsec’d. Notes
4.125%   12/01/27     20,000   19,245,191
Columbia Pipelines Operating Co. LLC,
Sr. Unsec’d. Notes, 144A
6.544%   11/15/53     3,620   3,799,223
6.714%   08/15/63     13,890   14,793,793
DCP Midstream Operating LP,
Gtd. Notes
5.125%   05/15/29     6,975   7,019,929
5.375%   07/15/25     17,404   17,407,939
5.600%   04/01/44     7,379   6,862,301
8.125%   08/16/30     6,000   6,871,828
Gtd. Notes, 144A
6.450%   11/03/36     10,766   11,213,218
6.750%   09/15/37     17,644   18,760,367
Eastern Gas Transmission & Storage, Inc.,
Sr. Unsec’d. Notes
4.600%   12/15/44     915   779,335
 
A15

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Pipelines (cont’d.)
Energy Transfer LP,
Gtd. Notes
5.350%   05/15/45     2,875   $2,582,724
Jr. Sub. Notes, Series G
7.125%(ff)   05/15/30(oo)     21,530   21,775,473
Sr. Unsec’d. Notes
4.200%   04/15/27     5,000   4,957,318
4.900%   03/15/35     5,735   5,442,951
5.000%   05/15/50(a)     14,285   12,018,953
5.150%   02/01/43     4,450   3,950,641
5.300%   04/01/44     12,420   11,140,662
5.300%   04/15/47     2,500   2,214,518
5.400%   10/01/47     29,625   26,525,645
6.000%   06/15/48     8,083   7,801,638
6.125%   12/15/45     30,335   29,825,348
6.200%   04/01/55     8,980   8,908,749
6.250%   04/15/49     35,265   34,976,280
7.500%   07/01/38     11,000   12,537,883
Sr. Unsec’d. Notes, Series 20Y
5.800%   06/15/38     19,814   19,688,985
Enterprise Products Operating LLC,
Gtd. Notes
3.700%   01/31/51     9,600   6,974,741
3.950%   01/31/60(a)     4,541   3,307,801
4.200%   01/31/50     16,790   13,337,146
4.250%   02/15/48     18,060   14,614,213
4.450%   02/15/43     7,935   6,843,594
4.850%   08/15/42     3,930   3,576,654
4.850%   03/15/44     5,775   5,225,047
4.900%   05/15/46     25,127   22,655,435
4.950%   10/15/54     3,110   2,730,654
5.100%   02/15/45     12,537   11,645,017
5.375%(ff)   02/15/78     7,380   7,225,697
5.700%   02/15/42     5,100   5,152,320
6.125%   10/15/39(a)     3,937   4,170,379
6.450%   09/01/40     7,879   8,630,736
Gtd. Notes, Series D, 3 Month SOFR + 3.248%
7.571%(c)   08/16/77     4,312   4,303,203
Gulfstream Natural Gas System LLC,
Sr. Unsec’d. Notes, 144A
5.950%   10/15/45     19,904   18,586,660
Kinder Morgan Energy Partners LP,
Gtd. Notes
4.700%   11/01/42     11,190   9,500,612
5.000%   08/15/42     2,010   1,790,177
5.000%   03/01/43     1,176   1,042,400
5.400%   09/01/44     878   810,322
6.500%   02/01/37     900   956,931
6.500%   09/01/39     5,545   5,847,029
6.550%   09/15/40     4,370   4,600,604
Gtd. Notes, MTN
6.950%   01/15/38     575   634,002
Kinder Morgan, Inc.,
Gtd. Notes
3.600%   02/15/51(a)     2,944   2,015,836
5.050%   02/15/46     1,759   1,541,236
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Pipelines (cont’d.)
MPLX LP,
Sr. Unsec’d. Notes
4.500%   04/15/38     8,547   $7,502,591
4.700%   04/15/48     18,002   14,726,273
4.900%   04/15/58(a)     9,705   7,939,126
5.200%   03/01/47     2,690   2,368,071
5.200%   12/01/47     14,490   12,731,780
5.400%   04/01/35     5,120   5,035,152
5.500%   06/01/34     4,932   4,915,154
5.500%   02/15/49(a)     41,550   37,811,375
5.650%   03/01/53     600   554,047
Northwest Pipeline LLC,
Sr. Unsec’d. Notes
4.000%   04/01/27     1,162   1,149,142
ONEOK Partners LP,
Gtd. Notes
6.125%   02/01/41     1,325   1,337,492
6.200%   09/15/43     18,615   18,846,346
6.850%   10/15/37     1,742   1,898,556
ONEOK, Inc.,
Gtd. Notes
3.100%   03/15/30     8,745   8,053,103
3.400%   09/01/29     4,705   4,436,530
4.200%   03/15/45(a)     4,130   3,153,783
4.450%   09/01/49     7,495   5,853,090
4.500%   03/15/50     16,230   12,763,831
4.550%   07/15/28(a)     15,725   15,665,884
4.850%   02/01/49     17,700   14,708,581
4.950%   07/13/47     18,108   15,445,501
5.200%   07/15/48     4,999   4,402,558
6.625%   09/01/53(a)     36,631   38,322,785
Plains All American Pipeline LP/PAA Finance Corp.,
Sr. Unsec’d. Notes
3.550%   12/15/29     4,215   3,971,132
Southern Natural Gas Co. LLC,
Sr. Unsec’d. Notes, 144A
4.800%   03/15/47     1,250   1,052,871
Spectra Energy Partners LP,
Gtd. Notes
4.500%   03/15/45     565   464,857
Targa Resources Corp.,
Gtd. Notes
6.125%   03/15/33     5,000   5,214,865
6.125%   05/15/55(a)     18,305   18,200,764
6.250%   07/01/52     9,000   9,091,350
6.500%   02/15/53(a)     5,093   5,289,427
Tennessee Gas Pipeline Co. LLC,
Gtd. Notes, 144A
2.900%   03/01/30     4,710   4,296,428
Transcontinental Gas Pipe Line Co. LLC,
Sr. Unsec’d. Notes
4.450%   08/01/42     5,603   4,775,132
4.600%   03/15/48     2,100   1,778,650
5.400%   08/15/41     1,544   1,480,328
 
A16

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Pipelines (cont’d.)
Western Midstream Operating LP,
Sr. Unsec’d. Notes
5.300%   03/01/48     8,053   $6,889,478
5.500%   08/15/48     19,930   17,467,365
6.150%   04/01/33(a)     1,085   1,117,947
Williams Cos., Inc. (The),
Sr. Unsec’d. Notes
3.500%   11/15/30     3,770   3,522,975
3.500%   10/15/51     11,622   7,946,905
3.750%   06/15/27     990   973,106
4.900%   01/15/45     10,477   9,232,008
5.100%   09/15/45     13,042   11,771,772
5.300%   08/15/52     7,130   6,537,399
5.400%   03/04/44     22,544   21,262,279
5.750%   06/24/44     13,955   13,695,907
5.800%   11/15/43     3,434   3,386,087
6.300%   04/15/40     15,935   16,795,395
              898,717,596
Real Estate — 0.0%
Ontario Teachers’ Cadillac Fairview Properties Trust (Canada),
Sr. Unsec’d. Notes, 144A
3.875%   03/20/27(a)     4,600   4,530,108
Real Estate Investment Trusts (REITs) — 0.6%
Alexandria Real Estate Equities, Inc.,
Gtd. Notes
3.000%   05/18/51     3,500   2,156,632
5.625%   05/15/54(a)     21,480   20,486,449
Brandywine Operating Partnership LP,
Gtd. Notes
4.550%   10/01/29(a)     1,265   1,150,820
Brixmor Operating Partnership LP,
Sr. Unsec’d. Notes
4.125%   05/15/29     6,449   6,258,071
Simon Property Group LP,
Sr. Unsec’d. Notes
3.250%   09/13/49(a)     1,495   1,005,474
3.800%   07/15/50(a)     4,300   3,173,390
Welltower OP LLC,
Gtd. Notes
2.750%   01/15/31     6,635   5,917,360
3.100%   01/15/30     7,500   6,969,683
4.250%   04/01/26     3,070   3,060,772
4.250%   04/15/28     9,620   9,513,845
              59,692,496
Retail — 1.2%
Alimentation Couche-Tard, Inc. (Canada),
Gtd. Notes, 144A
3.550%   07/26/27     20,000   19,524,446
4.500%   07/26/47     15,758   12,841,856
AutoNation, Inc.,
Sr. Unsec’d. Notes
2.400%   08/01/31     4,570   3,826,184
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Retail (cont’d.)
AutoZone, Inc.,
Sr. Unsec’d. Notes
3.750%   04/18/29     9,490   $9,172,097
Dollar Tree, Inc.,
Sr. Unsec’d. Notes
4.000%   05/15/25     5,000   4,990,446
4.200%   05/15/28     29,165   28,626,311
Home Depot, Inc. (The),
Sr. Unsec’d. Notes
3.350%   04/15/50     1,335   939,983
3.900%   06/15/47     20,500   16,198,786
4.250%   04/01/46     9,395   7,898,031
5.300%   06/25/54     1,765   1,701,878
5.400%   06/25/64     910   875,150
Macy’s Retail Holdings LLC,
Gtd. Notes
5.125%   01/15/42     1,875   1,279,997
McDonald’s Corp.,
Sr. Unsec’d. Notes, MTN
3.625%   09/01/49     5,035   3,671,115
4.600%   05/26/45     5,325   4,646,337
              116,192,617
Semiconductors — 1.1%
Broadcom, Inc.,
Gtd. Notes, 144A
3.500%   02/15/41     10,000   7,833,169
3.750%   02/15/51(a)     3,438   2,568,627
Sr. Unsec’d. Notes, 144A
3.137%   11/15/35     50,673   42,012,157
Foundry JV Holdco LLC,
Sr. Sec’d. Notes, 144A
6.250%   01/25/35     9,603   9,934,618
Intel Corp.,
Sr. Unsec’d. Notes
3.734%   12/08/47     5,000   3,487,892
4.900%   08/05/52     2,813   2,298,267
5.050%   08/05/62     5,630   4,578,274
5.600%   02/21/54(a)     3,556   3,225,722
5.700%   02/10/53(a)     37,906   34,863,975
              110,802,701
Shipbuilding — 0.0%
Huntington Ingalls Industries, Inc.,
Gtd. Notes
3.483%   12/01/27     2,467   2,391,965
Software — 2.9%
Microsoft Corp.,
Sr. Unsec’d. Notes
2.525%   06/01/50     163,729   102,715,788
2.675%   06/01/60     19,513   11,645,292
2.921%   03/17/52     17,488   11,731,635
3.041%   03/17/62(a)     6,837   4,443,880
Oracle Corp.,
Sr. Unsec’d. Notes
3.600%   04/01/40     21,125   16,600,973
 
A17

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Software (cont’d.)
3.600%   04/01/50     16,050   $11,122,947
3.800%   11/15/37     21,055   17,734,189
3.850%   07/15/36(a)     9,668   8,377,367
3.900%   05/15/35     7,346   6,535,811
3.950%   03/25/51     1,920   1,409,464
4.000%   07/15/46     32,902   25,161,256
4.100%   03/25/61     1,180   840,837
4.125%   05/15/45     1,300   1,023,267
4.300%   07/08/34(a)     2,032   1,888,260
4.375%   05/15/55     23,359   18,128,477
5.500%   09/27/64     2,042   1,850,833
5.550%   02/06/53     5,809   5,417,911
6.900%   11/09/52     26,335   29,017,158
Roper Technologies, Inc.,
Sr. Unsec’d. Notes
4.200%   09/15/28     3,885   3,837,808
Synopsys, Inc.,
Sr. Unsec’d. Notes
5.000%   04/01/32     11,842   11,874,651
              291,357,804
Telecommunications — 3.4%
AT&T, Inc.,
Sr. Unsec’d. Notes
3.500%   06/01/41     36,400   28,055,219
3.500%   09/15/53(a)     65,637   44,746,204
3.550%   09/15/55     69,667   47,147,532
3.650%   09/15/59     82,309   55,496,231
3.800%   12/01/57     22,245   15,607,527
4.500%   05/15/35     22,285   20,945,946
4.650%   06/01/44     19,400   16,697,419
Motorola Solutions, Inc.,
Sr. Unsec’d. Notes
2.300%   11/15/30     3,000   2,620,468
T-Mobile USA, Inc.,
Gtd. Notes
3.000%   02/15/41     27,795   20,157,355
3.300%   02/15/51     24,035   16,037,924
4.375%   04/15/40     3,205   2,821,098
4.500%   04/15/50     4,300   3,572,356
5.500%   01/15/55     3,415   3,245,576
Verizon Communications, Inc.,
Sr. Unsec’d. Notes
2.650%   11/20/40     30,555   21,451,958
2.875%   11/20/50     3,510   2,181,658
2.987%   10/30/56     2,320   1,392,402
3.400%   03/22/41     12,000   9,229,797
3.700%   03/22/61(a)     29,291   20,160,496
4.000%   03/22/50     5,566   4,282,642
              335,849,808
Transportation — 1.6%
Burlington Northern Santa Fe LLC,
Sr. Unsec’d. Notes
4.150%   04/01/45     3,535   2,941,043
4.375%   09/01/42     8,705   7,595,243
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Transportation (cont’d.)
4.400%   03/15/42     10,600   $9,324,544
4.450%   03/15/43     11,312   9,954,359
4.550%   09/01/44     2,455   2,175,107
4.700%   09/01/45     3,040   2,725,683
5.050%   03/01/41     1,620   1,547,899
5.150%   09/01/43     3,133   3,021,902
Canadian National Railway Co. (Canada),
Sr. Unsec’d. Notes
4.500%   11/07/43     2,000   1,727,490
Canadian Pacific Railway Co. (Canada),
Gtd. Notes
3.000%   12/02/41     3,135   2,251,744
4.800%   09/15/35     1,645   1,585,847
4.950%   08/15/45     10,000   9,150,690
6.125%   09/15/2115     14,400   14,524,586
CSX Corp.,
Sr. Unsec’d. Notes
2.600%   11/01/26(a)     5,890   5,736,118
3.350%   11/01/25     10,250   10,178,556
4.500%   08/01/54     8,850   7,518,000
4.750%   05/30/42     4,873   4,469,741
6.150%   05/01/37     1,000   1,078,817
6.220%   04/30/40     531   572,575
FedEx Corp.,
Gtd. Notes, 144A
4.100%   04/15/43     825   644,118
4.550%   04/01/46     6,975   5,669,874
4.750%   11/15/45     2,925   2,397,058
Norfolk Southern Corp.,
Sr. Unsec’d. Notes
3.050%   05/15/50(a)     7,626   4,971,778
3.942%   11/01/47     3,667   2,862,880
3.950%   10/01/42     1,140   928,472
4.050%   08/15/52     1,585   1,235,662
4.100%   05/15/2121     10,745   7,572,915
4.450%   06/15/45     1,700   1,454,549
4.650%   01/15/46     700   612,207
4.800%   08/15/43     852   751,364
4.837%   10/01/41(a)     1,080   991,174
5.590%   05/17/25     3,000   3,000,995
Union Pacific Corp.,
Sr. Unsec’d. Notes
2.973%   09/16/62     1,400   816,920
3.350%   08/15/46     4,300   3,115,753
3.799%   04/06/71     23,845   16,375,923
3.875%   02/01/55     4,805   3,617,113
3.950%   08/15/59     5,100   3,790,645
              158,889,344
Trucking & Leasing — 0.1%
Penske Truck Leasing Co. LP/PTL Finance Corp.,
Sr. Unsec’d. Notes, 144A
1.700%   06/15/26     4,325   4,175,955
3.400%   11/15/26     4,275   4,190,705
              8,366,660
 
A18

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Corporate Bonds (continued)
Water — 0.0%
American Water Capital Corp.,
Sr. Unsec’d. Notes
5.450%   03/01/54     4,205   $4,047,984
 
Total Corporate Bonds

(cost $9,988,425,758)

  8,736,170,176
Municipal Bonds — 1.8%
California — 0.2%
Bay Area Toll Authority,
Revenue Bonds, BABs, Series F2
6.263%   04/01/49     7,300   7,814,912
Los Angeles Department of Water & Power, Power System Revenue,
Revenue Bonds, BABs
6.603%   07/01/50     8,000   8,623,699
Regents of the University of California Medical Center Pooled Revenue,
Taxable, Revenue Bonds, Series Q
4.563%   05/15/53     4,375   3,750,911
              20,189,522
District of Columbia — 0.0%
District of Columbia Water & Sewer Authority,
Taxable, Revenue Bonds, Series A
4.814%   10/01/2114     5,000   4,380,374
Illinois — 0.1%
Illinois State Toll Highway Authority,
Revenue Bonds, BABs, Series B
5.851%   12/01/34     100   103,545
State of Illinois,
General Obligation Unlimited, Taxable
5.100%   06/01/33     7,158   7,132,784
              7,236,329
Michigan — 0.3%
Michigan State University,
Taxable, Revenue Bonds, Series A
4.165%   08/15/2122     5,450   3,986,304
University of Michigan,
Taxable, Revenue Bonds, Series A
4.454%   04/01/2122     17,144   13,750,803
Taxable, Revenue Bonds, Series B
2.437%   04/01/40     4,810   3,532,173
Taxable, Revenue Bonds, Series C
3.599%   04/01/47     5,000   4,141,509
              25,410,789
Missouri — 0.1%
Health & Educational Facilities Authority of the State of Missouri,
Taxable, Revenue Bonds, Series A
3.652%   08/15/57     19,000   14,097,499
Missouri Highway & Transportation Commission,
Revenue Bonds, BABs
5.445%   05/01/33     325   331,551
              14,429,050
Interest
Rate
  Maturity
Date
  Principal
Amount
(000)#
  Value
 
Municipal Bonds (continued)
New Jersey — 0.4%
New Jersey Turnpike Authority,
Taxable, Revenue Bonds, BABs, Series A
7.102%   01/01/41     29,125   $33,373,629
Taxable, Revenue Bonds, BABs, Series F
7.414%   01/01/40     5,145   6,183,585
              39,557,214
Ohio — 0.0%
Ohio State University (The),
Taxable, Revenue Bonds, Series A
4.800%   06/01/2111     1,300   1,125,654
Pennsylvania — 0.1%
Pennsylvania Turnpike Commission,
Revenue Bonds, BABs
6.105%   12/01/39     7,575   8,127,841
University of Pittsburgh-of the Commonwealth System of Higher Education,
Taxable, Revenue Bonds
3.555%   09/15/2119     5,575   3,617,048
              11,744,889
Texas — 0.4%
Dallas Fort Worth International Airport,
Taxable, Revenue Bonds, Series A
4.087%   11/01/51     1,025   842,138
North Texas Tollway Authority,
Taxable, Revenue Bonds, BABs, Series B
6.718%   01/01/49     5,410   6,087,349
Permanent University Fund - University of Texas System,
Taxable, Revenue Bonds, Series A
3.376%   07/01/47     16,940   13,035,718
Texas Private Activity Bond Surface Transportation Corp.,
Taxable, Revenue Bonds, Series B
3.922%   12/31/49     20,700   16,536,622
              36,501,827
Virginia — 0.2%
University of Virginia,
Taxable, Revenue Bonds, Series B
2.584%   11/01/51     15,810   9,573,752
Taxable, Revenue Bonds, Series C
4.179%   09/01/2117     10,570   8,069,930
              17,643,682
 
Total Municipal Bonds

(cost $221,206,942)

  178,219,330
U.S. Treasury Obligations — 2.2%
U.S. Treasury Bonds
1.875%   02/15/51(k)     25,380   14,716,434
U.S. Treasury Notes
3.875%   08/15/34     46,770   45,586,135
4.625%   02/15/35(h)(k)     150,070   155,017,620
 
Total U.S. Treasury Obligations

(cost $212,370,665)

  215,320,189
    
 
A19

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
      Shares   Value
Preferred Stocks — 0.1%
Capital Markets — 0.0%
State Street Corp., 5.350%(ff), Series G, Maturing 03/15/26(a)(oo)

117,000   $2,637,180
Financial Services — 0.1%
SCE Trust V, 5.450%(c), 3 Month SOFR + 4.052%, Series K, Maturing 03/15/26(oo)

565,000   12,944,150
 
Total Preferred Stocks

(cost $17,050,000)

  15,581,330
 
Total Long-Term Investments

(cost $11,075,015,743)

  9,760,348,259
Short-Term Investments — 3.8%
Affiliated Mutual Funds
PGIM Core Ultra Short Bond Fund(wb)

60,642,274   60,642,274
PGIM Institutional Money Market Fund (7-day effective yield 4.548%)

(cost $321,038,574; includes $319,516,584 of cash collateral for securities on loan)(b)(wb)

321,236,505   321,043,763
 
Total Short-Term Investments

(cost $381,680,848)

  381,686,037
 
TOTAL INVESTMENTS—102.1%

(cost $11,456,696,591)

  10,142,034,296
 
Liabilities in excess of other assets(z) — (2.1)%

  (210,026,925)
 
Net Assets — 100.0%

  $9,932,007,371
    
Below is a list of the abbreviation(s) used in the quarterly schedule of portfolio holdings:
EUR Euro
    
144A Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, pursuant to the requirements of Rule 144A, may not be resold except to qualified institutional buyers.
BABs Build America Bonds
CDX Credit Derivative Index
CITI Citibank, N.A.
CLO Collateralized Loan Obligation
DAC Designated Activity Company
EMTN Euro Medium Term Note
GMTN Global Medium Term Note
HSBC HSBC Bank PLC
LP Limited Partnership
MTN Medium Term Note
N/A Not Applicable
Q Quarterly payment frequency for swaps
REITs Real Estate Investment Trust
SOFR Secured Overnight Financing Rate
SSB State Street Bank & Trust Company
    
# Principal or notional amount is shown in U.S. dollars unless otherwise stated.
(a) All or a portion of security is on loan. The aggregate market value of such securities, including those sold and pending settlement, is $313,635,295; cash collateral of $319,516,584 (included in liabilities) was received with which the Portfolio purchased highly liquid short-term investments. In the event of significant appreciation in value of securities on loan on the last business day of the reporting period, the Portfolio may reflect a collateral value that is less than the market value of the loaned securities and such shortfall is remedied the following business day.
(b) Represents security, or portion thereof, purchased with cash collateral received for securities on loan and includes dividend reinvestment.
(c) Variable rate instrument. The interest rate shown reflects the rate in effect at March 31, 2025.
(cc) Variable rate instrument. The rate shown is based on the latest available information as of March 31, 2025. Certain variable rate securities are not based on a published reference rate and spread but are determined by the issuer or agent and are based on current market conditions. These securities do not indicate a reference rate and spread in their description.
(ff) Variable rate security. Security may be issued at a fixed coupon rate, which converts to a variable rate at a specified date. Rate shown is the rate in effect as of period end.
(h) Represents security, or a portion thereof, segregated as collateral for OTC derivatives.
(k) Represents security, or a portion thereof, segregated as collateral for centrally cleared/exchange-traded derivatives.
(oo) Perpetual security. Maturity date represents next call date.
(wb) Represents an investment in a Fund affiliated with the Manager. 
(z) Includes net unrealized appreciation/(depreciation) and/or market value of the below holdings which are excluded from the Schedule of Investments:
Futures contracts outstanding at March 31, 2025:
Number
of
Contracts
  Type   Expiration
Date
  Current
Notional
Amount
  Value /
Unrealized
Appreciation
(Depreciation)
Long Positions:
4,134   5 Year U.S. Treasury Notes   Jun. 2025   $447,117,938   $4,938,029
4,657   10 Year U.S. Treasury Notes   Jun. 2025   517,945,719   8,589,979
2,153   10 Year U.S. Ultra Treasury Notes   Jun. 2025   245,711,125   2,492,539
                16,020,547
Short Positions:
206   2 Year U.S. Treasury Notes   Jun. 2025   42,677,406   (183,608)
608   10 Year Euro-Bund   Jun. 2025   84,696,758   2,320,177
4,141   20 Year U.S. Treasury Bonds   Jun. 2025   485,661,656   (6,280,984)
A20

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
Futures contracts outstanding at March 31, 2025 (continued):
Number
of
Contracts
  Type   Expiration
Date
  Current
Notional
Amount
  Value /
Unrealized
Appreciation
(Depreciation)
Short Positions (cont’d):
829   30 Year U.S. Ultra Treasury Bonds   Jun. 2025   $101,345,250   $(852,105)
                (4,996,520)
                $11,024,027
Forward foreign currency exchange contracts outstanding at March 31, 2025:
Purchase
Contracts
  Counterparty   Notional
Amount
(000)
  Value at
Settlement
Date
  Current
Value
  Unrealized
Appreciation
  Unrealized
Depreciation
OTC Forward Foreign Currency Exchange Contracts:
Euro,
Expiring 04/02/25   SSB   EUR 64,757   $70,142,011   $70,029,581   $  $(112,430)
Expiring 04/22/25   HSBC   EUR 23,119   24,974,952   25,028,228   53,276  
              $95,116,963   $95,057,809   53,276   (112,430)
    
Sale
Contracts
  Counterparty   Notional
Amount
(000)
  Value at
Settlement
Date
  Current
Value
  Unrealized
Appreciation
  Unrealized
Depreciation
OTC Forward Foreign Currency Exchange Contracts:
Euro,
Expiring 04/02/25   SSB   EUR 64,757   $67,920,246   $70,029,581   $  $(2,109,335)
Expiring 04/22/25   CITI   EUR 347   378,249   375,187   3,062  
Expiring 05/02/25   SSB   EUR 64,757   70,255,467   70,143,559   111,908  
              $138,553,962   $140,548,327   114,970   (2,109,335)
                      $168,246   $(2,221,765)
Credit default swap agreement outstanding at March 31, 2025:
Reference Entity/
Obligation
Termination
Date
  Fixed
Rate
  Notional
Amount
(000)#(3)
Value at
Trade Date
  Value at
March 31,
2025
  Unrealized
Appreciation
(Depreciation)
Centrally Cleared Credit Default Swap Agreement on credit indices - Buy Protection(1):  
CDX.NA.IG.44.V1 06/20/30   1.000%(Q)     785,101   $(14,697,297)   $(14,438,417)   $258,880  
The Portfolio entered into credit default swaps (“CDS”) to provide a measure of protection against defaults or to take an active long or short position with respect to the likelihood of a particular issuer’s default or the reference entity’s credit soundness. CDS contracts generally trade based on a spread which represents the cost a protection buyer has to pay the protection seller. The protection buyer is said to be short the credit as the value of the contract rises the more the credit deteriorates. The value of the CDS contract increases for the protection buyer if the spread increases.
(1) If the Portfolio is a buyer of protection, it pays the fixed rate. When a credit event occurs, as defined under the terms of that particular swap agreement, the Portfolio will either (i) receive from the seller of protection an amount equal to the notional amount of the swap and make delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) receive a net settlement amount in the form of cash or securities equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index.
(2) If the Portfolio is a seller of protection, it receives the fixed rate. When a credit event occurs, as defined under the terms of that particular swap agreement, the Portfolio will either (i) pay to the buyer of protection an amount equal to the notional amount of the swap and take delivery of the referenced obligation or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash or securities equal to the notional amount of the swap less the recovery value of the referenced obligation or underlying securities comprising the referenced index.
A21

AST MULTI-SECTOR FIXED INCOME PORTFOLIO (continued)
SCHEDULE OF INVESTMENTS as of March 31, 2025(unaudited)
(3) Notional amount represents the maximum potential amount the Portfolio could be required to pay as a seller of credit protection or receive as a buyer of credit protection if a credit event occurs as defined under the terms of that particular swap agreement.
(4) Implied credit spreads, represented in absolute terms, utilized in determining the fair value of credit default swap agreements where the Portfolio is the seller of protection as of the reporting date serve as an indicator of the current status of the payment/ performance risk and represent the likelihood of risk of default for the credit derivative. The implied credit spread of a particular referenced entity reflects the cost of buying/selling protection and may include up-front payments required to be made to enter into the agreement. Wider credit spreads represent a deterioration of the referenced entity’s credit soundness and a greater likelihood of risk of default or other credit event occurring as defined under the terms of the agreement.
Other information regarding the Portfolio is available in the Portfolio’s most recent Report to Shareholders. This information is available on the Securities and Exchange Commission’s website (www.sec.gov).
A22