JENNISON ASSOCIATES LLC
13F-HR, 1999-08-10
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<PAGE>
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549

FORM 13F

FORM 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: June 30, 1999

Check here if Amendment [ ]; Amendment Number: _____________

This Amendment (Check only one):   [ ] is a restatement.

[ ] adds new holdings entries.

Institutional Investment Manager Filing this Report:

Name: Jennison Associates LLC

Address: 466 Lexington Avenue, New York, NY 10017

Form 13F File Number: 28-74

The institutional investment manager filing this report and the person by

whom it is signed hereby represent that the person signing the report is

authorized to submit it, that all information contained herein is true,

correct and complete, and that it is understood that all required items,

statements, schedules, lists, and tables, are considered integral parts of

this form.

Person Signing this Report on Behalf of Reporting Manager:

Name:  Karen E. Kohler
Title:  Senior Vice President
Phone: 212-421-1000

Signature, Place and Date of Signing:


/s/Karen E. Kohler       New York, New York        August 3, 1999
Karen E. Kohler



Report Type (Check only one):

[X] 13F HOLDINGS REPORT.

[ ] 13F NOTICE.

[ ] 13F COMBINATION REPORT.


</PAGE>



<PAGE>

FORM 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:  1

Form 13F Information Table Entry Total:   157

Form 13F Information Table Value Total:  $  33,590,215,000

List of Other Included Managers:

No.       13F File Number               Name

01        28-256                   Prudential Insurance Company
                                          of America
</PAGE>

<PAGE>

<TABLE> 06/30/1999
                                                             VALUE    SHARES/SH/ PUT/ INVSTMT            -----VOTING AUTHORITY-----
NAME OF ISSUER              -TITLE OF CLASS- --CUSIP-- x$1000    PRN AMTPRN CALL DSCRETN -MANAGERS-     SOLE   SHARED     NONE
                                 <C>
<C>
D AMR CORP                       COMMON           001765106    77764  1139400 SH DEFINED 01          1073800        0    65600
D AT&T LIBERTY MEDIA GROUP       COMMON           001957208   340051  9253100 SH DEFINED 01          8777700        0   475400
D ABERCROMBIE & FITCH            CL A             002896207    46257   963686 SH DEFINED 01           963626        0       60
D ABITIBI-CONSOLIDATED INC.      COMMON           003924107     8798   773400 SH DEFINED 01           749000        0    24400
D AIRBORNE FREIGHT CORP          COMMON           009266107     5236   189100 SH DEFINED 01           183900        0     5200
D ALCAN ALUMINIUM LTD.           COMMON           013716105     8445   264400 SH DEFINED 01           257300        0     7100
D ALLEGIANCE TELECOM, INC.       COMMON           01747T102   249314  4543300 SH DEFINED 01          4316100        0   227200
D ALLIED SIGNAL INC.             COMMON           019512102   330486  5245800 SH DEFINED 01          4981900        0   263900
D ALLSTATE INSURANCE             COMMON           020002101    16528   460700 SH DEFINED 01           387200        0    73500
D ALTERA CORP                    COMMON           021441100   145711  3958200 SH DEFINED 01          3713800        0   244400
D ALZA CORP.                     COMMON           022615108     3500    68800 SH DEFINED 01            68800        0        0
D AMAZON COM INC.                COMMON           023135106     1802    14400 SH DEFINED 01            14400        0        0
D AMERICA ON-LINE                COMMON           02364J104   339856  3089600 SH DEFINED 01          2943600        0   146000
D AMERICAN HOME PRODUCTS         COMMON           026609107   739782 12893800 SH DEFINED 01         12314300        0   579500
D AMERICAN INTL. GROUP           COMMON           026874107   783946  6686100 SH DEFINED 01          6361600        0   324500
D AMGEN INC.                     COMMON           031162100     5004    82200 SH DEFINED 01            82200        0        0
D ANADARKO PETROLEUM CORP        COMMON           032511107     7337   199300 SH DEFINED 01           193900        0     5400
D APPLIED MATERIALS INC.         COMMON           038222105   786296 10643600 SH DEFINED 01         10155200        0   488400
D ASSOCIATES FIRST CAPITAL       CL A             046008108    64647  1465100 SH DEFINED 01          1390800        0    74300
D AUTOZONE INC                   COMMON           053332102    10986   364700 SH DEFINED 01           353600        0    11100
D AVALONBAY COMMUNITIES INC.     COMMON           053484101     6939   187554 SH DEFINED 01           180380        0     7174
D AVIRON                         COMMON           053762100     1466    51000 SH DEFINED 01            51000        0        0
D BANK OF AMERICA CORP.          COMMON           060505104      438     5970 SH DEFINED 01             4636        0     1334
D BOISE CASCADE CORP.            COMMON           097383103    12627   294500 SH DEFINED 01           240700        0    53800
D BOISE CASCADE OFFICE PRODUCTS  COMMON           097403109     3134   266700 SH DEFINED 01           257200        0     9500
D BOWATER INC                    COMMON           102183100     4999   105500 SH DEFINED 01           101500        0     4000
D BRISTOL-MYERS SQUIBB CO.       COMMON           110122108   483800  6868500 SH DEFINED 01          6535400        0   333100
D BROADCOM CORP. - CL. A         COMMON           111320107    14023    97000 SH DEFINED 01            97000        0        0
D BURLINGTON RESOURCES INC.      COMMON           122014103    10203   235900 SH DEFINED 01           229400        0     6500
D CBS CORPORATION                COMMON           12490K107  1125073 25826640 SH DEFINED 01         24608940        0  1217700
D CIGNA CORP.                    COMMON           125509109    19598   220200 SH DEFINED 01           193800        0    26400
D CNF TRANSPORTATION INC         COMMON           12612W104     6230   161800 SH DEFINED 01           156900        0     4900
D CVS CORP                       COMMON           126650100   363821  7168900 SH DEFINED 01          6808600        0   360300
D CADENCE DESIGN SYSTEMS         COMMON           127387108    43263  3426800 SH DEFINED 01          3078900        0   347900
D CARDINAL HEALTH INC            COMMON           14149Y108     1783    27800 SH DEFINED 01            27800        0        0
D CAREINSITE, INC.               COMMON           14170M106     4725   100000 SH DEFINED 01           100000        0        0
D CERNER CORP                    COMMON           156782104      730    34800 SH DEFINED 01            34800        0        0
D CHAMPION INTERNATIONAL CORP.   COMMON           158525105     9394   196200 SH DEFINED 01           190800        0     5400
D CHASE MANHATTAN CORP           COMMON           16161A108  1184895 13698212 SH DEFINED 01         13081156        0   617056
D CHRIS-CRAFT INDS               COMMON           170520100     2294    48675 SH DEFINED 01            48675        0        0
D CISCO SYSTEMS INC.             COMMON           17275R102  1369548 21253900 SH DEFINED 01         20280450        0   973450
D CITIGROUP INC                  COMMON           172967101  1051492 22136675 SH DEFINED 01         20983350        0  1153325
D CLEAR CHANNEL COMMUNICATIONS I COMMON           184502102   596858  8657959 SH DEFINED 01          8232959        0   425000
D CONVERGYS CORPORATION          COMMON           212485106    66846  3450100 SH DEFINED 01          3414500        0    35600
D CROMPTON & KNOWLES CORP        COMMON           227111101    11425   578500 SH DEFINED 01           478400        0   100100
D CYTEC INDUSTRIES INC.          COMMON           232820100    13000   412700 SH DEFINED 01           401500        0    11200
D DANA CORP                      COMMON           235811106     5703   123800 SH DEFINED 01           120500        0     3300
D DELL COMPUTER CORP.            COMMON           247025109   500728 13533200 SH DEFINED 01         12910300        0   622900
D DEXTER CORPORATION             COMMON           252165105    11896   291500 SH DEFINED 01           257700        0    33800
D DOLE FOOD COMPANY              COMMON           256605106     9876   336200 SH DEFINED 01           291500        0    44700
D EMC CORP. MASS.                COMMON           268648102   544743  9904400 SH DEFINED 01          9477100        0   427300
D ENGELHARD CORP                 COMMON           292845104     8233   363900 SH DEFINED 01           319800        0    44100
D EQUANT N V-REGISTERED SHARES   COM N.Y.REG      294409107   245000  2592600 SH DEFINED 01          2465400        0   127200
D FLEET FINANCIAL GROUP          COMMON           338915101    10229   230500 SH DEFINED 01           224400        0     6100
D FOREST LABS CLASS A            COMMON           345838106     1850    40000 SH DEFINED 01            40000        0        0
D GAP INC.                       COMMON           364760108   691800 13733010 SH DEFINED 01         13078650        0   654360
D GENERAL ELECTRIC CO.           COMMON           369604103  1033114  9142600 SH DEFINED 01          8699200        0   443400
D GENERAL MOTORS CORP            COMMON           370442105    29964   454000 SH DEFINED 01           405700        0    48300
D GENERAL MOTORS CL H            COMMON           370442832     6324   112300 SH DEFINED 01           109200        0     3100
D GOLDMAN SACHS GROUP INC.       COMMON           38141G104   128721  1781600 SH DEFINED 01          1697300        0    84300
D B.F. GOODRICH                  COMMON           382388106     8823   207600 SH DEFINED 01           202000        0     5600
D WR GRACE & CO.                 COMMON           38388F108    14689   773100 SH DEFINED 01           641400        0   131700
D HARRAH'S ENTERTAINMENT INC     COMMON           413619107     1099    49800 SH DEFINED 01            49800        0        0
D HEALTHSOUTH CORP               COMMON           421924101    13441   903600 SH DEFINED 01           764500        0   139100
D HEALTH MANAGEMENT ASSOCIATES   CL A             421933102     1377   122400 SH DEFINED 01           122400        0        0
D HERTZ CORP-CL A                CL A             428040109     9411   151800 SH DEFINED 01           147700        0     4100
D HEWLETT PACKARD CO.            COMMON           428236103   595545  5925820 SH DEFINED 01          5615520        0   310300
D HIBERNIA CORP-CLASS A          CL A             428656102    58508  3729600 SH DEFINED 01          3402700        0   326900
D HILTON HOTELS CORP             COMMON           432848109    33510  2361900 SH DEFINED 01          2272600        0    89300
D HOME DEPOT INC                 COMMON           437076102   885645 13744254 SH DEFINED 01         13075756        0   668498
D IDX SYSTEMS                    COMMON           449491109      711    31500 SH DEFINED 01            31500        0        0
D IMC GLOBAL INC                 COMMON           449669100     7474   430200 SH DEFINED 01           370900        0    59300
D INFINITY BROADCASTING CORP - A CL A             45662S102     9504   321500 SH DEFINED 01           321500        0        0
D INFORMIX CORP.                 COMMON           456779107     8059   944700 SH DEFINED 01           751600        0   193100
D INTEL CORP                     COMMON           458140100   623678 10481980 SH DEFINED 01          9962380        0   519600
D INTERGRAPH CORP                COMMON           458683109     4633   597800 SH DEFINED 01           575300        0    22500
D INT'L BUSINESS MACHINES CORP.  COMMON           459200101  1038741  8036680 SH DEFINED 01          7644580        0   392100
D INTERNATIONAL RECTIFIER CORP.  COMMON           460254105    13349  1002800 SH DEFINED 01           863500        0   139300
D INTUIT INC.                    COMMON           461202103   326874  3626900 SH DEFINED 01          3463300        0   163600
D KLA-TENCOR CORPORATION         COMMON           482480100   387959  5980100 SH DEFINED 01          5672300        0   307800
D K MART CORP.                   COMMON           482584109    12590   763000 SH DEFINED 01           739200        0    23800
D KOHL'S CORP.                   COMMON           500255104   669343  8706900 SH DEFINED 01          8256900        0   450000
D LAM RESEARCH CORP              COMMON           512807108      602    12900 SH DEFINED 01            12900        0        0
D ESTEE LAUDER COMPANIES, INC.   CL A             518439104   278008  5546300 SH DEFINED 01          5286700        0   259600
D LEUKOSITE INC.                 COMMON           52728R102      731    60900 SH DEFINED 01            60900        0        0
D LEVEL 3 COMMUNICATIONS, INC.   COMMON           52729N100    82394  1371800 SH DEFINED 01          1311400        0    60400
D LILLY (ELI) & CO.              COMMON           532457108   279438  3901400 SH DEFINED 01          3706800        0   194600
D LIMITED INC                    COMMON           532716107    15120   333219 SH DEFINED 01           289192        0    44027
D LUCENT TECHNOLOGIES, INC.      COMMON           549463107   319865  4743140 SH DEFINED 01          4517730        0   225410
D MBNA CORP                      COMMON           55262L100   506923 16552599 SH DEFINED 01         15755275        0   797324
D MCI WORLDCOM INC.              COMMON           55268B106  1507893 17520900 SH DEFINED 01         16719600        0   801300
D MANPOWER INC                   COMMON           56418H100     9536   421500 SH DEFINED 01           408100        0    13400
D MCDERMOTT INTL INC             COMMON           580037109     6819   241400 SH DEFINED 01           235300        0     6100
D MCDONALD'S CORP.               COMMON           580135101   641587 15600900 SH DEFINED 01         14830300        0   770600
D MCKESSON HBOC INC              COMMON           58155Q103     2147    66700 SH DEFINED 01            66700        0        0
D MERCK AND CO.                  COMMON           589331107   547925  7442100 SH DEFINED 01          7064300        0   377800
D MICROSOFT CORP.                COMMON           594918104  1371770 15210200 SH DEFINED 01         14467800        0   742400
D MILLIPORE CORP.                COMMON           601073109    13117   323400 SH DEFINED 01           276400        0    47000
D MORGAN STANLEY DEAN WITTER & C COMMON           617446448   689917  6722695 SH DEFINED 01          6398885        0   323810
D MOTOROLA INC.                  COMMON           620076109   203410  2146800 SH DEFINED 01          2057200        0    89600
D MUTUAL RISK MANAGEMENT, LTD.   COMMON           628351108    86562  2593624 SH DEFINED 01          2589824        0     3800
D NAT'L SEMICONDUCTOR CORP.      COMMON           637640103    12515   494400 SH DEFINED 01           423700        0    70700
D NAVISTAR INTERNATIONAL CORP.   COMMON           63934E108    10435   208700 SH DEFINED 01           208700        0        0
D NEW YORK TIMES CLASS A         CL A             650111107    19592   532200 SH DEFINED 01           452500        0    79700
D NEXTLINK COMMUNICATIONS-A      CL A             65333H707   115296  1550200 SH DEFINED 01          1470700        0    79500
D NUCOR CORP                     COMMON           670346105     6997   147500 SH DEFINED 01           143400        0     4100
D OGDEN CORP.                    COMMON           676346109     7895   293100 SH DEFINED 01           285300        0     7800
D OMNICOM GROUP                  COMMON           681919106   574530  7181620 SH DEFINED 01          6802520        0   379100
D PEPSI BOTTLING GROUP INC       COMMON           713409100     1149    49700 SH DEFINED 01            49700        0        0
D PHARMACYCLICS INC.             COMMON           716933106      566    20200 SH DEFINED 01            20200        0        0
D PFIZER INC.                    COMMON           717081103   302420  2774500 SH DEFINED 01          2647700        0   126800
D POLAROID CORP.                 COMMON           731095105     7197   261700 SH DEFINED 01           253700        0     8000
D POLO RALPH LAUREN CORP.        CL A             731572103     9472   498500 SH DEFINED 01           483000        0    15500
D PROMUS HOTEL CORP.             COMMON           74342P106    10165   327900 SH DEFINED 01           318900        0     9000
D QUINTILES TRANSNATIONAL CORP   COMMON           748767100     7699   183300 SH DEFINED 01           183300        0        0
D QWEST COMMUNICATIONS INTL      COMMON           749121109   474609 14354900 SH DEFINED 01         13666000        0   688900
D RATIONAL SOFTWARE CORP         COM NEW          75409P202   167168  5075300 SH DEFINED 01          4912600        0   162700
D RAYTHEON CO. - CLASS A         CL A             755111309    16459   238960 SH DEFINED 01           232128        0     6832
D REYNOLDS METALS CO.            COMMON           761763101     6974   118200 SH DEFINED 01           114900        0     3300
D RYDER SYSTEM INC               COMMON           783549108    12152   471900 SH DEFINED 01           396100        0    75800
D ST PAUL CO'S INC.              COMMON           792860108     7969   250500 SH DEFINED 01           243200        0     7300
D SCHERING PLOUGH CORP.          COMMON           806605101   633360 12064000 SH DEFINED 01         11485100        0   578900
D SCHWAB (CHARLES) CORP          COMMON           808513105   308339  2828800 SH DEFINED 01          2703900        0   124900
D SEARS ROEBUCK & CO             COMMON           812387108    11043   247800 SH DEFINED 01           241000        0     6800
D SEPRACOR INC.                  COMMON           817315104      723     8900 SH DEFINED 01             8900        0        0
D SMURFIT-STONE CONTAINER CORP   COMMON           832727101    20447   994345 SH DEFINED 01           818997        0   175348
D STAPLES, INC.                  COMMON           855030102   445382 14396200 SH DEFINED 01         13777050        0   619150
D STONE CONTAINER PREF SERIES E  COMMON           861589307      260    12400 SH DEFINED 01             5000        0     7400
D SUN MICRO SYSTEMS              COMMON           866810104   183586  2665500 SH DEFINED 01          2546700        0   118800
D SYMBOL TECHNOLOGIES INC.       COMMON           871508107   119799  3248800 SH DEFINED 01          3016900        0   231900
D TANDY CORPORATION              COMMON           875382103    11418   233600 SH DEFINED 01           227100        0     6500
D TELLABS INC.                   COMMON           879664100   514374  7613300 SH DEFINED 01          7286200        0   327100
D TEXAS INSTRUMENTS INC.         COMMON           882508104  1219853  8471200 SH DEFINED 01          8080200        0   391000
D 3 COM CORP                     COMMON           885535104     7131   267200 SH DEFINED 01           267200        0        0
D TIFFANY & CO.                  COMMON           886547108   164794  1707700 SH DEFINED 01          1610700        0    97000
D TOSCO CORP                     COMMON           891490302     9382   361700 SH DEFINED 01           352000        0     9700
D TRANSKARYOTIC THERAPIES INC.   COMMON           893735100     1020    30900 SH DEFINED 01            30900        0        0
D TRAVELERS PROP CASUALTY - CL A COMMON           893939108     5259   134400 SH DEFINED 01           130600        0     3800
D TRIBUNE CO                     COMMON           896047107    14741   169200 SH DEFINED 01           164400        0     4800
D UAL CORP.                      COMMON           902549500      207     3200 SH DEFINED 01             2400        0      800
D USX-MARATHON GROUP             COMMON           902905827    10052   308700 SH DEFINED 01           300100        0     8600
D USX-US STEEL GROUP             COMMON           90337T101    11108   411400 SH DEFINED 01           398400        0    13000
D UNIVISION COMMUNICATIONS INC.  CL A             914906102   361323  5558800 SH DEFINED 01          5234300        0   324500
D UNOCAL CORP.                   COMMON           915289102    18374   463700 SH DEFINED 01           376600        0    87100
D VERTEX PHARMACEUTICALS         COMMON           92532F100     9783   405500 SH DEFINED 01           329700        0    75800
D WAL-MART STORES                COMMON           931142103   353861  7333900 SH DEFINED 01          6985200        0   348700
D WARNER LAMBERT CO.             COMMON           934488107   652077  9433300 SH DEFINED 01          8976900        0   456400
D WITCO CORP                     COMMON           977385103     5167   261600 SH DEFINED 01           216700        0    44900
D XEROX CORP.                    COMMON           984121103   563350  9538200 SH DEFINED 01          9082400        0   455800
D ACE LTD.                       ORD              G0070K103   232390  8226200 SH DEFINED 01          7859200        0   367000
D KNIGHTSBRIDGE TANKERS LTD.     ORD              G5299G106     2034   116200 SH DEFINED 01           112100        0     4100
D LORAL SPACE & COMMUNICATIONS   COMMON           G56462107     7929   440500 SH DEFINED 01           366000        0    74500
D XL CAPITAL LTD                 CL A             G98255105    15105   267335 SH DEFINED 01           225567        0    41768
D ERICSSON (L.M.) TEL-SP ADR     ADR              294821400     4997   151700 SH DEFINED 01           151700        0        0
D GLAXO WELLCOME PLC-ADR         ADR              37733W105    19818   350000 SH DEFINED 01           335000        0    15000
D NOKIA CORP-SPONSORED ADR       ADR              654902204   505004  5515400 SH DEFINED 01          5248700        0   266700
D VODAFONE AIRTOUCH PLC-ADR      ADR              92857T107   478208  2427450 SH DEFINED 01          2308300        0   119150
S REPORT SUMMARY                157 DATA RECORDS            33590215             1 OTHER MANAGERS ON WHOSE BEHALF REPORT IS FILED
</TABLE>


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