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: Thornburg Investment Management, Inc.
Address: 119 East Marcy Street, Suite 202
Santa Fe, New Mexico 87501
Form 13F File Number: 28-7812
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: Michael Murphy
Title: Compliance Specialist
Phone: 505-954-5293
Signature, Place, and Date of Signing:
Michael Murphy Santa Fe, New Mexico 01/14/00
Signature City, State Date
Report Type:
[X] 13F HOLDINGS REPORT.
[ ] 13F NOTICE.
[ ] 13F COMBINATION REPORT.
List of Other Managers Reporting for this Manager: None
I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIRS EXCHANGE ACT OF 1934.
Form 13F SUMMARY PAGE
Report Summary:
Number of Other Included Managers: None
Form 13F Information Table Entry Total: 100
Form 13F Information Table Value Total: $850,271
(thousands)
List of Other Included Managers: None
<TABLE>
<CAPTION>
Title Value PRN SH Put/ INV Oth
Name of Issuer Class Cusip X1000 Amount PRN Call Desc Mgr Sole Shared None
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
ADOBE SYS INC COM 00724F101 8829 131285 SH SOLE 131285
ADVENT SOFTWARE COM 007974108 15501 240557 SH SOLE 240557
AHREND (KON) COM 523142909 1405 100000 SH SOLE 100000
ALCOA INC COM COM 013817101 62 750 SH SOLE 750
ALSO HOLDING COM 401813902 665 847 SH SOLE 847
AMER FINL HLDGS COM 026075101 12796 1018585 SH SOLE 1018585
AMER HOME PRODS COM PAP 026609008 7495 7500000 PRN SOLE 7500000
AMER TEL + TELE COM PAP 03018B000 5992 6000000 PRN SOLE 6000000
AMER TOWER CORP COM 029912201 16024 524295 SH SOLE 524295
ANNUITY & LIFE RE COM G03910109 674 25800 SH SOLE 25800
APCOA PARKING AG COM 432439909 801 11531 SH SOLE 11531
APPLIED MATERIALS COM 038222105 18370 145000 SH SOLE 145000
ASM LITHOGRAPHY COM N07059111 796 7000 SH SOLE 7000
ATLANTIC RICHFIELD COM 048825103 19810 229015 SH SOLE 229015
AUST+NZ BANK GRP COM 606558005 582 80000 SH SOLE 80000
AVIS RENT A CAR COM 053790101 9821 384205 SH SOLE 384205
BALTIMORE TECH COM 098964901 873 10600 SH SOLE 10600
BALTIMORE TECH ADR 059284109 88 1000 SH SOLE 1000
BANKGESELL BERLIN COM 510785900 708 42570 SH SOLE 42570
BCE INC COM 05534B109 9560 106000 SH SOLE 106000
BELL ATLANTIC CORP COM 077853109 29558 480130 SH SOLE 480130
BELL ATLANTIC NET COM PAP 077996007 6595 6600000 PRN SOLE 6600000
BK AUSTRIA AG COM 499962009 11330 200839 SH SOLE 200839
BOEING CO COM 097023105 12330 296690 SH SOLE 296690
BP AMOCO P L C ADR 055622104 39 654 SH SOLE 654
BRE BANK COM 414305904 475 1500 SH SOLE 1500
BROOKS AUTOMATION COM 11434A100 9710 298200 SH SOLE 298200
CHEVRON CORP COM 166751107 21 245 SH SOLE 245
COMPUTACENTER COM 027993906 747 46000 SH SOLE 46000
CROWN CASTLE INTL COM 228227104 1928 60000 SH SOLE 60000
CVS CORP COM 126650100 26270 657799 SH SOLE 657799
DALLAS SEMICNDCTR COM 235204104 8653 134285 SH SOLE 134285
DIAL CORP NEW COM COM 25247D101 15259 627600 SH SOLE 627600
DIEBOLD INC COM 253651103 12153 517140 SH SOLE 517140
DOW CHEM CO COM 260543103 16697 124951 SH SOLE 124951
DSM NV COM 577398902 1403 35000 SH SOLE 35000
DYCKERHOFF AG COM 576157903 13413 438000 SH SOLE 438000
EDINBURGH FD MGRS COM 030453005 443 52000 SH SOLE 52000
EIRCOM PLC ADR 28257P105 480 30000 SH SOLE 30000
EL PASO ENERGY COM 283905107 19297 497185 SH SOLE 497185
EMRAER EMP AER BR COM 242856904 722 160000 SH SOLE 160000
ERICSSON L M TEL ADR 294821400 1117 17000 SH SOLE 17000
EXXON MOBIL CORP COM 30231G102 36 447 SH SOLE 447
FLUGHAFEN WIEN AG COM 435969001 1043 30000 SH SOLE 30000
FORD MTR CR CO COM PAP 345397004 779 780000 PRN SOLE 780000
FOX ENTMT GROUP COM 35138T107 16297 653500 SH SOLE 653500
GENERAL MOTORS COM PAP 370428005 2690 2700000 PRN SOLE 2700000
GENZYME CORP COM 372917104 15180 337335 SH SOLE 337335
GOLDMAN SACHS GRP COM 38141G104 1177 12500 SH SOLE 12500
HEALTH MGMT ASSOC COM 421933102 28471 2128675 SH SOLE 2128675
HERCULES INC COM 427056106 10312 369925 SH SOLE 369925
HUDSON CITY BANCRP COM 443683107 6383 475000 SH SOLE 475000
ING GROEP N V ADR 456837103 297 4872 SH SOLE 4872
ING GROEP NV COM 505887901 16673 276126 SH SOLE 276126
INTEL CORP COM 458140100 19320 234720 SH SOLE 234720
INVESTMENT TEC GRP COM 46145F105 10532 366334 SH SOLE 366334
JDN RLTY CORP COM 465917102 8096 502105 SH SOLE 502105
JULIUS BAER HLDG COM 411695000 19886 6583 SH SOLE 6583
KIMBERLY CLARK COM 494368103 23189 355370 SH SOLE 355370
KOREA THRUNET CO COM Y49975108 339 5000 SH SOLE 5000
LAM RESH CORP COM 512807108 31 275 SH SOLE 275
LILLY ELI + CO COM 532457108 20928 314704 SH SOLE 314704
MACROMEDIA INC COM 556100105 14886 203570 SH SOLE 203570
MAPQUEST COM INC COM 565644101 97 4290 SH SOLE 4290
MERCK KGAA COM 474184900 1247 40200 SH SOLE 40200
NEWBRIDGE NETWRKS COM 650901101 10460 463585 SH SOLE 463585
NIPPON TEL+TEL COM 664137007 1542 90 SH SOLE 90
NOKIA CORP ADR 654902204 24547 129180 SH SOLE 129180
NORTEL NETWORKS COM 656569100 36635 362725 SH SOLE 362725
NOVELLUS SYS INC COM 670008101 12637 103130 SH SOLE 103130
OCCIDENTAL PETE COM 674599105 6271 290000 SH SOLE 290000
OTP BANK GDR X60746116 404 7000 SH SOLE 7000
PEPSICO INC COM 713448108 17952 509275 SH SOLE 509275
PHARMACIA+UPJOHN COM 716941109 846 18800 SH SOLE 18800
REYNOLDS METALS COM 761763101 31007 404665 SH SOLE 404665
ROLLS ROYCE COM 074776006 1042 300000 SH SOLE 300000
SABRE HLDGS COM 785905100 11261 219735 SH SOLE 219735
SAMSUNG ELECTRNC GDR 796050888 849 7000 SH SOLE 7000
SAMSUNG ELECTRS COM 677172009 398 1700 SH SOLE 1700
SCHWAB CHARLES COM 808513105 10162 264825 SH SOLE 264825
SEAGATE TECH COM 811804103 10758 231045 SH SOLE 231045
SOFTBANK CORP COM 677062903 1914 2000 SH SOLE 2000
SOGECABLE ORD COM 573066909 1405 22000 SH SOLE 22000
SONY CORP COM 682150008 16370 55200 SH SOLE 55200
SONY CORP ADR 835699307 17731 62270 SH SOLE 62270
SUN CMNTYS INC COM 866674104 10189 316560 SH SOLE 316560
SUN MICROSYSTEMS COM 866810104 15786 203860 SH SOLE 203860
SWEDISH MATCH COM 504856907 454 130000 SH SOLE 130000
TAIWAN SEMICNDCT COM 688910900 1054 198000 SH SOLE 198000
TELESP CELULAR SA COM 224693903 403 7500000 SH SOLE 7500000
TERRA NETWORKS SA COM 581372901 55 1000 SH SOLE 1000
TESCO COM 088470000 878 289000 SH SOLE 289000
U S WEST INC COM 91273H101 21988 305395 SH SOLE 305395
UNION PAC CORP COM 907818108 8978 205790 SH SOLE 205790
UNIONBANCAL CORP COM 908906100 12084 306405 SH SOLE 306405
UNITEDGLOBAL COM 913247508 805 11400 SH SOLE 11400
UPM KYMMENE OY COM 505125906 1330 33000 SH SOLE 33000
USWEB CORP COM COM 917327108 96 2165 SH SOLE 2165
WEBS INDEX FD INC COM 92923H889 613 37600 SH SOLE 37600
WELLPOINT HLTH NET COM 94973H108 23986 363765 SH SOLE 363765
</TABLE>
