<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: December 31, 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 February 9, 2000
Karen E. Kohler
Report Type (Check only one):
[X] 13F HOLDINGS REPORT.
[ ] 13F NOTICE.
[ ] 13F COMBINATION REPORT.
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FORM 13F SUMMARY PAGE
Report Summary:
Number of Other Included Managers: 1
Form 13F Information Table Entry Total: 185
Form 13F Information Table Value Total: $ 41,535,515
List of Other Included Managers:
No. 13F File Number Name
01 28-256 Prudential Insurance Company
of America
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<TABLE> 12/31/1999
VALUE SHARES/
SH/ PUT/ INVSTMT -----VOTING AUTHORITY-----
NAME OF ISSUER -TITLE OF CLASS- --CUSIP-- x$1000 PRN AMT
PRN CALL DSCRETN -MANAGERS- SOLE SHARED NONE
<C>
<C>
D AK STEEL HOLDING CORP COMMON 001547108 9315 493500 SH
DEFINED 01 427900 0 65600
D AMR CORP COMMON 001765106 15309 228500 SH
DEFINED 01 201600 0 26900
D AT&T LIBERTY MEDIA GROUP COMMON 001957208 712958 12549300 SH
DEFINED 01 11877800 0 671500
D ABITIBI-CONSOLIDATED INC. COMMON 003924107 7790 656000 SH
DEFINED 01 652400 0 3600
D ALCAN ALUMINIUM LTD. COMMON 013716105 13588 328400 SH
DEFINED 01 263200 0 65200
D ALLEGIANCE TELECOM, INC. COMMON 01747T102 407957 4422300 SH
DEFINED 01 4172500 0 249800
D ALLERGAN COMMON 018490102 1741 35000 SH
DEFINED 01 35000 0 0
D ALLSCRIPTS INC. COMMON 019886100 3828 87000 SH
DEFINED 01 87000 0 0
D ALLSTATE INSURANCE COMMON 020002101 12121 503700 SH
DEFINED 01 431700 0 72000
D ALZA CORP. COMMON 022615108 1683 48600 SH
DEFINED 01 47600 0 1000
D AMAZON COM INC. COMMON 023135106 4750 62400 SH
DEFINED 01 62400 0 0
D AMERADA HESS CORP COMMON 023551104 3189 56200 SH
DEFINED 01 56200 0 0
D AMERICA ON-LINE COMMON 02364J104 648177 8542700 SH
DEFINED 01 8081000 0 461700
D AMERICAN EXPRESS CO. COMMON 025816109 468659 2819000 SH
DEFINED 01 2667200 0 151800
D AMERICAN HOME PRODUCTS COMMON 026609107 642271 16363600 SH
DEFINED 01 15545200 0 818400
D AMERICAN INTL. GROUP COMMON 026874107 1179884 10912225 SH
DEFINED 01 10335625 0 576600
D AMGEN INC. COMMON 031162100 514664 8568800 SH
DEFINED 01 8105800 0 463000
D ANADARKO PETROLEUM CORP COMMON 032511107 7863 230400 SH
DEFINED 01 229000 0 1400
D APPLIED MATERIALS INC. COMMON 038222105 649476 5126600 SH
DEFINED 01 4869600 0 257000
D AUTOZONE INC COMMON 053332102 10498 324900 SH
DEFINED 01 323000 0 1900
D AVALONBAY COMMUNITIES INC. COMMON 053484101 5922 171044 SH
DEFINED 01 171044 0 0
D AVIRON COMMON 053762100 5058 319900 SH
DEFINED 01 319900 0 0
D BANK OF AMERICA CORP. COMMON 060505104 300 5970 SH
DEFINED 01 4636 0 1334
D BOISE CASCADE CORP. COMMON 097383103 13993 345500 SH
DEFINED 01 282400 0 63100
D BOISE CASCADE OFFICE PRODUCTS COMMON 097403109 5563 370800 SH
DEFINED 01 366700 0 4100
D BRISTOL-MYERS SQUIBB CO. COMMON 110122108 424196 6608700 SH
DEFINED 01 6266700 0 342000
D BROADCOM CORP. - CL. A CL A 111320107 428909 1574700 SH
DEFINED 01 1491900 0 82800
D BURLINGTON RESOURCES INC. COMMON 122014103 7829 236800 SH
DEFINED 01 235500 0 1300
D CBS CORPORATION COMMON 12490K107 1375413 21511840 SH
DEFINED 01 20371040 0 1140800
D CIGNA CORP. COMMON 125509109 10812 134200 SH
DEFINED 01 133000 0 1200
D CK WITCO CORP COMMON 12562C108 9923 741897 SH
DEFINED 01 622929 0 118968
D CABOT CORP. COMMON 127055101 479 23500 SH
DEFINED 01 23500 0 0
D CANADIAN PACIFIC LTD. COMMON 135923100 507 23500 SH
DEFINED 01 23500 0 0
D CHASE MANHATTAN CORP COMMON 16161A108 636930 8198612 SH
DEFINED 01 7762356 0 436256
D CHRIS-CRAFT INDS COMMON 170520100 5516 76475 SH
DEFINED 01 76075 0 400
D CISCO SYSTEMS INC. COMMON 17275R102 1824151 17028250 SH
DEFINED 01 16173500 0 854750
D CITIGROUP INC COMMON 172967101 1365833 24526750 SH
DEFINED 01 23354325 0 1172425
D CITRIX SYSTEMS INC. COMMON 177376100 2583 21000 SH
DEFINED 01 21000 0 0
D CLEAR CHANNEL COMMUNICATIONS I COMMON 184502102 816599 9149559 SH
DEFINED 01 8688959 0 460600
D COLUMBIA HCA HEALTHCARE CORP COMMON 197677107 8729 297800 SH
DEFINED 01 295500 0 2300
D CONTINENTAL AIRLINES INC. 'B' CL B 210795308 10340 233000 SH
DEFINED 01 231700 0 1300
D CYGNUS INC COMMON 232560102 8612 471900 SH
DEFINED 01 471900 0 0
D CYTEC INDUSTRIES INC. COMMON 232820100 5803 252300 SH
DEFINED 01 252300 0 0
D DANA CORP COMMON 235811106 6532 218200 SH
DEFINED 01 216500 0 1700
D DELL COMPUTER CORP. COMMON 247025109 586847 11506800 SH
DEFINED 01 10920900 0 585900
D DEXTER CORPORATION COMMON 252165105 11321 284800 SH
DEFINED 01 252300 0 32500
D DIAMOND OFFSHORE DRILLING COMMON 25271C102 4230 138400 SH
DEFINED 01 137200 0 1200
D DIEBOLD, INC. COMMON 253651103 5583 237600 SH
DEFINED 01 235500 0 2100
D EMC CORP. MASS. COMMON 268648102 895642 8198100 SH
DEFINED 01 7813200 0 384900
D EBENX INC. COMMON 278668108 1810 40000 SH
DEFINED 01 40000 0 0
D ENGELHARD CORP COMMON 292845104 11946 632900 SH
DEFINED 01 568200 0 64700
D EQUANT N V-REGISTERED SHARES COM N.Y.REG 294409107 559518 4995700 SH
DEFINED 01 4746100 0 249600
D FIRSTENERGY CORP. COMMON 337932107 976 43000 SH
DEFINED 01 43000 0 0
D FLEET BOSTON FINANCIAL CORP COMMON 339030108 11269 323700 SH
DEFINED 01 290000 0 33700
D FREEMARKETS INC. COMMON 356602102 8260 24200 SH
DEFINED 01 24200 0 0
D GAP INC. COMMON 364760108 734780 15973487 SH
DEFINED 01 15140827 0 832660
D GENENTECH INC. COMMON 368710406 397904 2958400 SH
DEFINED 01 2800100 0 158300
D GENERAL ELECTRIC CO. COMMON 369604103 1406817 9090900 SH
DEFINED 01 8587500 0 503400
D GENERAL MOTORS CORP COMMON 370442105 14232 195800 SH
DEFINED 01 172600 0 23200
D GENERAL MOTORS CL H CLASS H 370442832 19248 200500 SH
DEFINED 01 200500 0 0
D GENTEX CORP COMMON 371901109 4887 176100 SH
DEFINED 01 176100 0 0
D B.F. GOODRICH COMMON 382388106 9127 331900 SH
DEFINED 01 329100 0 2800
D WR GRACE & CO. COMMON 38388F108 3041 215300 SH
DEFINED 01 213600 0 1700
D GREAT LAKES CHEMICAL CORP COMMON 390568103 917 24000 SH
DEFINED 01 24000 0 0
D HARRAH'S ENTERTAINMENT INC COMMON 413619107 1250 47300 SH
DEFINED 01 47300 0 0
D THE HARTFORD FINANCIAL SVCS GR COMMON 416515104 10101 213200 SH
DEFINED 01 211900 0 1300
D HEALTH MANAGEMENT ASSOCIATES CL A 421933102 9161 684900 SH
DEFINED 01 679300 0 5600
D HEALTHEXTRAS INC. COMMON 422211102 120 10000 SH
DEFINED 01 10000 0 0
D HERTZ CORP-CL A CL A 428040109 12501 249400 SH
DEFINED 01 219100 0 30300
D HEWLETT PACKARD CO. COMMON 428236103 1123533 9877220 SH
DEFINED 01 9385120 0 492100
D HIBERNIA CORP-CLASS A CL A 428656102 4189 394300 SH
DEFINED 01 394300 0 0
D HILTON HOTELS CORP COMMON 432848109 13900 1453575 SH
DEFINED 01 1284375 0 169200
D HOME DEPOT INC COMMON 437076102 1576013 22923834 SH
DEFINED 01 21707337 0 1216497
D HOMESTAKE MINING COMMON 437614100 391 50000 SH
DEFINED 01 50000 0 0
D INFINITY BROADCASTING CORP - A CL A 45662S102 13426 371000 SH
DEFINED 01 371000 0 0
D INFORMIX CORP. COMMON 456779107 10464 914900 SH
DEFINED 01 711000 0 203900
D INTEL CORP COMMON 458140100 972735 11817580 SH
DEFINED 01 11202280 0 615300
D INTERNATIONAL RECTIFIER CORP. COMMON 460254105 21708 834900 SH
DEFINED 01 733600 0 101300
D INTUIT INC. COMMON 461202103 414 6900 SH
DEFINED 01 6900 0 0
D JDS UNIPHASE CORP COMMON 46612J101 550140 3410400 SH
DEFINED 01 3228200 0 182200
D JOHNS MANVILE CORP COMMON 478129109 474 34000 SH
DEFINED 01 34000 0 0
D JOHNSON AND JOHNSON COMMON 478160104 129226 1385800 SH
DEFINED 01 1385800 0 0
D JUNIPER NETWORKS INC. COMMON 48203R104 274244 806600 SH
DEFINED 01 762700 0 43900
D KLA-TENCOR CORPORATION COMMON 482480100 455814 4092600 SH
DEFINED 01 3875400 0 217200
D K MART CORP. COMMON 482584109 5728 569300 SH
DEFINED 01 565500 0 3800
D KANSAS CITY POWER & LIGHT COMMON 485134100 563 25500 SH
DEFINED 01 25500 0 0
D KNIGHT RIDDER NEWSPAPER INC. COMMON 499040103 9102 152800 SH
DEFINED 01 151700 0 1100
D KNIGHT/TRIMARK GROUP, INC. CL A 499067106 506 11000 SH
DEFINED 01 11000 0 0
D KOHL'S CORP. COMMON 500255104 617903 8559700 SH
DEFINED 01 8098400 0 461300
D LAM RESEARCH CORP COMMON 512807108 1439 12900 SH
DEFINED 01 12900 0 0
D ESTEE LAUDER COMPANIES, INC. CL A 518439104 342390 6788400 SH
DEFINED 01 6423000 0 365400
D LEUCADIA NATIONAL CORP COMMON 527288104 694 30000 SH
DEFINED 01 30000 0 0
D LEVEL 3 COMMUNICATIONS, INC. COMMON 52729N100 269622 3293100 SH
DEFINED 01 3114200 0 178900
D LILLY (ELI) & CO. COMMON 532457108 146214 2198700 SH
DEFINED 01 2043800 0 154900
D LIMITED INC COMMON 532716107 6551 151232 SH
DEFINED 01 150133 0 1099
D LITTON INDUSTRIES INC COMMON 538021106 7611 152600 SH
DEFINED 01 151500 0 1100
D LOEWS CORP COMMON 540424108 2379 39200 SH
DEFINED 01 39200 0 0
D LONG DRUGS STORES CORP. COMMON 543162101 800 31000 SH
DEFINED 01 31000 0 0
D LUCENT TECHNOLOGIES, INC. COMMON 549463107 489052 6520695 SH
DEFINED 01 6173085 0 347610
D MCI WORLDCOM INC. COMMON 55268B106 712953 13436100 SH
DEFINED 01 12721950 0 714150
D MANDALAY RESORT GROUP MANDALAY 562567107 845 42000 SH
DEFINED 01 42000 0 0
D MANPOWER INC COMMON 56418H100 8605 228700 SH
DEFINED 01 226500 0 2200
D MCCORMICK & CO NO VOTE 579780206 277 9300 SH
DEFINED 01 9300 0 0
D MCDONALD'S CORP. COMMON 580135101 519100 12876900 SH
DEFINED 01 12143600 0 733300
D MEDICALOGIC INC. COMMON 584642102 966 46000 SH
DEFINED 01 46000 0 0
D MERCK AND CO. COMMON 589331107 340190 5063300 SH
DEFINED 01 4624700 0 438600
D MEREDITH CORP. COMMON 589433101 417 10000 SH
DEFINED 01 10000 0 0
D METROMEDIA FIBER NETWORK,INC. CL A 591689104 250392 5223300 SH
DEFINED 01 4954200 0 269100
D MICROSOFT CORP. COMMON 594918104 2061514 17657500 SH
DEFINED 01 16747200 0 910300
D MILLIPORE CORP. COMMON 601073109 20278 525000 SH
DEFINED 01 448000 0 77000
D MITCHELL ENERGY AND DEVELOPEME CL B 606592301 1078 50000 SH
DEFINED 01 50000 0 0
D MONSANTO CO COMMON 611662107 2371 66900 SH
DEFINED 01 66900 0 0
D MORGAN STANLEY DEAN WITTER & C COMMON 617446448 908223 6362335 SH
DEFINED 01 6023825 0 338510
D MOTOROLA INC. COMMON 620076109 730242 4959200 SH
DEFINED 01 4724600 0 234600
D MURPHY OIL CORP COMMON 626717102 1434 25000 SH
DEFINED 01 25000 0 0
D NTL INCORPORATED COMMON 629407107 916704 7348325 SH
DEFINED 01 7001675 0 346650
D NAT'L SEMICONDUCTOR CORP. COMMON 637640103 14338 334900 SH
DEFINED 01 287200 0 47700
D NEW YORK TIMES CLASS A CL A 650111107 17950 365400 SH
DEFINED 01 321300 0 44100
D NEWMONT MINING CORP. COMMON 651639106 6032 246200 SH
DEFINED 01 246200 0 0
D NEXTLINK COMMUNICATIONS-A CL A 65333H707 341935 4116600 SH
DEFINED 01 3909700 0 206900
D NIAGARA MOHAWK COMMON 653520106 2174 156000 SH
DEFINED 01 156000 0 0
D NUCOR CORP COMMON 670346105 9066 165400 SH
DEFINED 01 165400 0 0
D OCTEL CORP. COMMON 675727101 623 60000 SH
DEFINED 01 60000 0 0
D OMNICOM GROUP COMMON 681919106 675172 6751720 SH
DEFINED 01 6369820 0 381900
D OVERSEAS SHIPHOLDING GROUP INC COMMON 690368105 615 41500 SH
DEFINED 01 41500 0 0
D PACTIV CORPORATION COMMON 695257105 10171 957200 SH
DEFINED 01 810500 0 146700
D PHARMACIA AND UPJOHN INC. COMMON 716941109 9158 203500 SH
DEFINED 01 203500 0 0
D PHILIP MORRIS COS, INC. COMMON 718154107 621 27000 SH
DEFINED 01 27000 0 0
D PHONE.COM, INC. COMMON 71920Q100 5217 45000 SH
DEFINED 01 45000 0 0
D PLACER DOME INC COMMON 725906101 3467 322500 SH
DEFINED 01 319500 0 3000
D POLAROID CORP. COMMON 731095105 3477 184800 SH
DEFINED 01 183900 0 900
D POLO RALPH LAUREN CORP. CL A 731572103 9377 549600 SH
DEFINED 01 487100 0 62500
D PREVIEW TRAVEL INC. COMMON 74137R101 4034 77400 SH
DEFINED 01 77400 0 0
D QLT PHOTOTHERAPEUTICS INC. COMMON 746927102 2990 50900 SH
DEFINED 01 50900 0 0
D QWEST COMMUNICATIONS INTL COMMON 749121109 1075366 25008500 SH
DEFINED 01 23747000 0 1261500
D REEBOK INTERNATIONAL LTD. COMMON 758110100 287 35000 SH
DEFINED 01 35000 0 0
D ROBERT HALF INTL INC COMMON 770323103 8212 287500 SH
DEFINED 01 285400 0 2100
D ROUSE CO COMMON 779273101 510 24000 SH
DEFINED 01 24000 0 0
D RYDER SYSTEM INC COMMON 783549108 4051 165800 SH
DEFINED 01 164600 0 1200
D SAKS INCORPORATED COMMON 79377W108 8934 574100 SH
DEFINED 01 489700 0 84400
D SCHERING PLOUGH CORP. COMMON 806605101 216286 5104100 SH
DEFINED 01 4822900 0 281200
D SCIQUEST.COM INC. COMMON 80908Q107 1208 15200 SH
DEFINED 01 15200 0 0
D SEPRACOR INC. COMMON 817315104 4285 43200 SH
DEFINED 01 43200 0 0
D SMURFIT-STONE CONTAINER CORP COMMON 832727101 12320 502833 SH
DEFINED 01 457134 0 45699
D SNAP ON INC. COMMON 833034101 5433 204500 SH
DEFINED 01 203200 0 1300
D SOLECTRON CORP COMMON 834182107 6554 68900 SH
DEFINED 01 68900 0 0
D STMICROELECTRONICS NV-NY SHS COMMON 861012102 122073 806100 SH
DEFINED 01 770400 0 35700
D STONE CONTAINER PREF SERIES E PFD E CV $1.75 861589307 291 12400 SH
DEFINED 01 12400 0 0
D SUN MICROSYSTEMS COMMON 866810104 540150 6975300 SH
DEFINED 01 6604100 0 371200
D SUPERVALU INC. COMMON 868536103 3320 166000 SH
DEFINED 01 164500 0 1500
D SYCAMORE NETWORKS, INC. COMMON 871206108 17248 56000 SH
DEFINED 01 56000 0 0
D TELLABS INC. COMMON 879664100 545068 8491800 SH
DEFINED 01 8074400 0 417400
D TEXACO, INC. COMMON 881694103 1222 22500 SH
DEFINED 01 22500 0 0
D TEXAS INSTRUMENTS INC. COMMON 882508104 1160979 12015300 SH
DEFINED 01 11418800 0 596500
D 3 COM CORP COMMON 885535104 5137 109300 SH
DEFINED 01 109300 0 0
D TIFFANY & CO. COMMON 886547108 672713 7537400 SH
DEFINED 01 7166200 0 371200
D TOSCO CORP COMMON 891490302 10590 389500 SH
DEFINED 01 389500 0 0
D TOY'S R US COMMON 892335100 465 32500 SH
DEFINED 01 32500 0 0
D TRAVELERS PROP CASUALTY - CL A CL A 893939108 18334 535300 SH
DEFINED 01 463400 0 71900
D TRIBUNE CO COMMON 896047107 8678 157600 SH
DEFINED 01 157600 0 0
D UAL CORP. COM PAR $0.01 902549500 248 3200 SH
DEFINED 01 2400 0 800
D USX-MARATHON GROUP COMMON 902905827 6557 265600 SH
DEFINED 01 264200 0 1400
D USX-US STEEL GROUP COMMON 90337T101 10732 325200 SH
DEFINED 01 323300 0 1900
D UNISOURCE ENERGY CORP. COMMON 909205106 615 55000 SH
DEFINED 01 55000 0 0
D UNITED PARCEL SERVICE - CL. B CL B 911312106 1835 26600 SH
DEFINED 01 26600 0 0
D UNITRIN INC COMMON 913275103 320 8500 SH
DEFINED 01 8500 0 0
D UNIVISION COMMUNICATIONS INC. CL A 914906102 613943 6008000 SH
DEFINED 01 5677200 0 330800
D UNOCAL CORP. COMMON 915289102 10649 317300 SH
DEFINED 01 270100 0 47200
D UNUMPROVIDENT CORP COMMON 91529Y106 9314 290500 SH
DEFINED 01 247900 0 42600
D VERITAS SOFTWARE CORPORATION COMMON 923436109 241824 1689600 SH
DEFINED 01 1602000 0 87600
D VERTEX PHARMACEUTICALS COMMON 92532F100 11470 327700 SH
DEFINED 01 275400 0 52300
D VIROPHARMA INC. COMMON 928241108 8836 238800 SH
DEFINED 01 238800 0 0
D VISX INC/DEL COMMON 92844S105 6764 130700 SH
DEFINED 01 130700 0 0
D WAL-MART STORES COMMON 931142103 706499 10220600 SH
DEFINED 01 9666000 0 554600
D WARNER LAMBERT CO. COMMON 934488107 1015198 12389900 SH
DEFINED 01 11771300 0 618600
D WASHINGTON POST CO CL B 939640108 1834 3300 SH
DEFINED 01 3300 0 0
D WEYERHAUSER COMPANY COMMON 962166104 1005 14000 SH
DEFINED 01 14000 0 0
D LORAL SPACE & COMMUNICATIONS COMMON G56462107 14597 600400 SH
DEFINED 01 598300 0 2100
D TRITON ENERGY LTD. ORD G90751101 7990 387400 SH
DEFINED 01 350700 0 36700
D WHITE MOUNTAIN INSURANCE GROUP COMMON G9618E107 542 4500 SH
DEFINED 01 4500 0 0
D GLAXO WELLCOME PLC-ADR ADR - LISTED 37733W105 402328 7200500 SH
DEFINED 01 6820900 0 379600
D IMPERIAL CHEM INDS PLC ADR ADR - LISTED 452704505 724 17000 SH
DEFINED 01 17000 0 0
D NOKIA CORP-SPONSORED ADR ADR - LISTED 654902204 1349799 7064700 SH
DEFINED 01 6687300 0 377400
D SONY CORP. ADR-NEW ADR - LISTED 835699307 10479 36800 SH
DEFINED 01 36800 0 0
D VODAFONE AIRTOUCH PLC-ADR ADR - LISTED 92857T107 994727 20095495 SH
DEFINED 01 19111245 0 984250
S REPORT SUMMARY 185 DATA RECORDS 41535515
1 OTHER MANAGERS ON WHOSE BEHALF REPORT IS FILED
</TABLE>
