13F-HR 1 march2003.txt JWS MARCH 31, 2003 13F FILING
03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 1 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE A D C TELECOMMUNICATIONS COMMON 000886101 5,873,666 2,851,294 X 2,851,294 2,429,465 1,179,352 X 1,179,352 AFLAC INC COMMON 001055102 24,699,813 770,665 X 770,665 139,738 4,360 X 4,360 AES CORP COMMON 00130H105 44,945,562 12,415,901 X 12,415,901 11,029,561 3,046,840 X 3,046,840 AOL TIME WARNER COMMON 00184A105 12,911,237 1,188,880 X 1,188,880 AT&T CORP COMMON 001957505 966,427 59,656 X 59,656 ATMI INC COMMON 00207R101 5,378,085 279,236 X 279,236 878,757 45,626 X 45,626 AT & T WIRELESS GROUP COMMON 00209A106 8,981,775 1,360,875 X 1,360,875 59,301 8,985 X 8,985 AVX CORP NEW COMMON 002444107 2,012,085 223,565 X 223,565 1,251,675 139,075 X 139,075 ABBOTT LABS COMMON 002824100 3,972,180 105,615 X 105,615 57,355 1,525 X 1,525 ABERCROMBIE & FITCH CO COMMON 002896207 3,483,480 116,000 X 116,000 ACTIVCARD CORP COMMON 00505N109 66,880 6,783 X 6,783 00506J107 11,683,420 1,184,931 X 1,184,931 ACXIOM CORP COMMON 005125109 10,025,210 595,675 X 595,675 2,305,777 137,004 X 137,004 ADAPTEC INC COMMON 00651F108 12,308,936 2,041,283 X 2,041,283 4,263,717 707,084 X 707,084 ADOBE SYS INC COMMON 00724F101 7,608,227 246,780 X 246,780 8,016 260 X 260 ADVANCE AUTO PARTS COMMON 00751Y106 17,641,878 381,446 X 381,446 5,843,549 126,347 X 126,347 ADVANCED MEDICAL OPTICS COMMON 00763M108 X AEROFLEX INCORPORATED COMMON 007768104 10,035,259 1,773,014 X 1,773,014 3,253,000 574,735 X 574,735 ADVANCED MICRO DEVICES INC COMMON 007903107 36,129,763 5,846,240 X 5,846,240 32,723 5,295 X 5,295 Total 250,276,518 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 2 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE AETNA INC NEW COMMON 00817Y108 1,503,650 30,500 X 30,500 AFFILIATED COMPUTER SERVICES COMMON 008190100 21,433,657 484,267 X 484,267 8,188 185 X 185 AFFILIATED MANAGERS GROUP COMMON 008252108 9,037,443 217,403 X 217,403 2,092,301 50,332 X 50,332 AGERE SYSTEMS INC CL A COMMON 00845V100 13,187,541 8,242,213 X 8,242,213 542,672 339,170 X 339,170 AGERE SYSTEMS INC - CLASS B COMMON 00845V209 X X AGILE SOFTWARE CORP COMMON 00846X105 15,057,860 2,345,461 X 2,345,461 5,131,044 799,228 X 799,228 AIR PRODS & CHEMS INC COMMON 009158106 41,457,344 1,000,660 X 1,000,660 72,917 1,760 X 1,760 AIRGAS INC COMMON 009363102 16,001,321 864,469 X 864,469 5,413,509 292,464 X 292,464 ELECTROLUX AB COMMON 010198208 22,079 693 X 693 267,305 8,390 X 8,390 ALCOA INC COMMON 013817101 1,550,400 80,000 X 80,000 ALCATEL SA COMMON 013904305 18,610 2,701 X 2,701 235,156 34,130 X 34,130 ALEXION PHARMACEUTICALS INC COMMON 015351109 5,782,931 475,570 X 475,570 1,159,724 95,372 X 95,372 ALLERGAN INC COMMON 018490102 14,952,314 219,210 X 219,210 107,090 1,570 X 1,570 ALLIANCE GAMING CORPORATION COMMON 01859P609 8,106,270 540,418 X 540,418 1,730,970 115,398 X 115,398 ALLIANCE IMAGING INCORPORATED COMMON 018606202 1,691,317 538,636 X 538,636 429,141 136,669 X 136,669 ALLIANT TECHSYSTEMS INC COMMON 018804104 5,720,685 105,919 X 105,919 1,922,486 35,595 X 35,595 ALLMERICA FINL CORP COMMON 019754100 18,169 1,295 X 1,295 ALLSTATE CORP COMMON 020002101 106,232,896 3,202,680 X 3,202,680 Total 280,886,988 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 3 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE 28,163,917 849,078 X 849,078 ALLTEL CORP COMMON 020039103 43,697,845 976,270 X 976,270 34,018 760 X 760 ALTRIA GROUP INC COMMON 02209S103 96,318,853 3,214,915 X 3,214,915 19,321,983 644,926 X 644,926 AMAZON COM INC COMMON 023135106 3,519,256 135,200 X 135,200 4,295 165 X 165 AMEREN CORP COMMON 023608102 42,955 1,100 X 1,100 AMERICA MOVIL - ADR SERIES L COMMON 02364W105 467,950 35,000 X 35,000 UNITED CUSTOMER MNGNT SOLUTIONS COMMON 0246718 1 1,289,200 X 1,289,200 AMERICAN CAPITAL STRATEGIES COMMON 024937104 13,612,256 607,690 X 607,690 2,903,421 129,617 X 129,617 AMERICAN EAGLE OUTFITTERS INC COMMON 02553E106 12,301,019 847,205 X 847,205 503,610 34,685 X 34,685 AMERICAN EXPRESS CO COMMON 025816109 41,087,234 1,236,450 X 1,236,450 AMERICAN INTL GROUP INC COMMON 026874107 52,470,653 1,061,085 X 1,061,085 119,521 2,417 X 2,417 AMERICAN ITALIAN PASTA CO COMMON 027070101 13,732,178 317,507 X 317,507 734,428 16,981 X 16,981 AMERICAN MEDICAL SYSTEMS HOLDINGSCOMMON 02744M108 218,195 15,100 X 15,100 AMETEK INC NEW COMMON 031100100 11,904,363 360,629 X 360,629 4,094,791 124,047 X 124,047 AMGEN INC COMMON 031162100 46,784,697 812,940 X 812,940 353,645 6,145 X 6,145 AMKOR TECHNOLOGY INC COMMON 031652100 47,228,622 9,135,130 X 9,135,130 33,760 6,530 X 6,530 AMPHENOL CORP NEW COMMON 032095101 39,471,265 968,620 X 968,620 38,101 935 X 935 AMSURG CORP COMMON 03232P405 6,322,630 250,898 X 250,898 1,844,690 73,202 X 73,202 ANADARKO PETE CORP COMMON 032511107 2,674,490 58,780 X 58,780 Total 490,004,643 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 4 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE ANALOG DEVICES INC COMMON 032654105 17,375,188 631,825 X 631,825 84,150 3,060 X 3,060 ANHEUSER BUSCH COS INC COMMON 035229103 3,409,988 73,160 X 73,160 ANTHEM, INC. COMMON 03674B104 12,809,438 193,350 X 193,350 APACHE CORP COMMON 037411105 8,068,183 130,680 X 130,680 APOGENT TECHNOLOGIES, INC. COMMON 03760A101 32,687,850 2,241,965 X 2,241,965 30,545 2,095 X 2,095 APRIA HEALTHCARE GROUP INC COMMON 037933108 34,189,416 1,463,588 X 1,463,588 7,492,206 320,728 X 320,728 APPLIED MATLS INC COMMON 038222105 7,099,838 564,375 X 564,375 98,187 7,805 X 7,805 APPLIED MICRO CIRCUITS CORP COMMON 03822W109 6,940,119 2,128,871 X 2,128,871 2,339,376 717,600 X 717,600 ARACRUZ CELULOSE S.A.-ADR COMMON 038496204 328,164 16,400 X 16,400 ARAMARK CORPORATION COMMON 038521100 3,802,408 166,044 X 166,044 2,513,733 109,770 X 109,770 ARRIS GROUP INC COMMON 04269Q100 4,516,712 1,220,733 X 1,220,733 860,942 232,687 X 232,687 ASTRAZENECA PLC -SPONS ADR COMMON 046353108 1,152,816 33,600 X 33,600 AUTODESK INC COMMON 052769106 119,004,835 7,798,482 X 7,798,482 112,390 7,365 X 7,365 AVAYA INCORPORATED COMMON 053499109 2 1 X 1 AVENTIS -SPON ADR COMMON 053561106 29,536 669 X 669 339,602 7,692 X 7,692 AVERY DENNISON CORP COMMON 053611109 18,498,064 315,290 X 315,290 62,484 1,065 X 1,065 AVON PRODS INC COMMON 054303102 8,396,619 147,180 X 147,180 BISYS GROUP INC COMMON 055472104 23,524,448 1,441,449 X 1,441,449 12,485 765 X 765 BJ SVCS CO COMMON 055482103 31,669,820 920,902 X 920,902 Total 347,449,541 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 5 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE 4,419,253 128,504 X 128,504 BP PLC - SPONS ADR COMMON 055622104 1,970,791 51,070 X 51,070 189,284 4,905 X 4,905 BMC SOFTWARE INC COMMON 055921100 100,106,094 6,633,936 X 6,633,936 93,332 6,185 X 6,185 BALDOR ELEC CO COMMON 057741100 4,879,243 228,002 X 228,002 1,877,615 87,739 X 87,739 BANK OF AMERICA CORP COMMON 060505104 59,071,855 883,780 X 883,780 BANK OF NEW YORK CO INC. COMMON 064057102 72,952,366 3,558,652 X 3,558,652 18,367,447 895,973 X 895,973 BANK ONE CORP COMMON 06423A103 6,924 200 X 200 BANKNORTH GROUP INC COMMON 06646R107 2,579,491 118,271 X 118,271 1,607,942 73,725 X 73,725 BARCLAYS PLC -SPONS ADR COMMON 06738E204 28,475 1,220 X 1,220 320,668 13,739 X 13,739 BARR LABS INC COMMON 068306109 6,517,950 114,350 X 114,350 BAXTER INTL INC COMMON 071813109 65,173,642 3,496,440 X 3,496,440 14,861,970 797,316 X 797,316 BEA SYS INC COMMON 073325102 3,483,090 343,500 X 343,500 3,549 350 X 350 BEAR STEARNS COS INC COMMON 073902108 39,471,520 601,700 X 601,700 BECKMAN COULTER INC COMMON 075811109 51,099,788 1,501,610 X 1,501,610 43,388 1,275 X 1,275 BECTON DICKINSON & CO COMMON 075887109 48,363,059 1,404,270 X 1,404,270 47,699 1,385 X 1,385 BED BATH & BEYOND INC COMMON 075896100 9,396,607 272,050 X 272,050 39,376 1,140 X 1,140 BELLSOUTH CORP COMMON 079860102 6,501 300 X 300 BERKLEY W R CORP COMMON 084423102 41,327,411 964,467 X 964,467 1,161,021 27,095 X 27,095 BHP LTD COMMON 088606108 36,175 3,259 X 3,259 Total 549,503,524 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 6 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE 432,212 38,938 X 38,938 BIOGEN INC COMMON 090597105 5,389,804 179,900 X 179,900 5,543 185 X 185 BIOMET INC COMMON 090613100 9,103,050 297,000 X 297,000 9,502 310 X 310 BIOVAIL CORPORATION COMMON 09067J109 21,033,817 527,560 X 527,560 BOEING CO COMMON 097023105 1,076,076 42,940 X 42,940 111,893 4,465 X 4,465 BOISE CASCADE CORP COMMON 097383103 9,506,935 435,100 X 435,100 BOSTON SCIENTIFIC CORP COMMON 101137107 77,303,174 1,896,545 X 1,896,545 61,344 1,505 X 1,505 BOWATER INC COMMON 102183100 26,704,720 718,835 X 718,835 603,873 16,255 X 16,255 BRINKER INTL INC COMMON 109641100 3,659,695 119,990 X 119,990 2,260,142 74,103 X 74,103 BRISTOL MYERS SQUIBB CO COMMON 110122108 67,614,986 3,199,952 X 3,199,952 15,389,338 728,317 X 728,317 BRITISH SKY BROADCASTING GROUP PLCOMMON 111013108 18,628 471 X 471 222,429 5,624 X 5,624 BROWN & BROWN INC COMMON 115236101 8,311,302 265,452 X 265,452 1,856,182 59,284 X 59,284 BURLINGTON NORTHN SANTA FE CP COMMON 12189T104 2,500,956 100,440 X 100,440 BURLINGTON RES INC COMMON 122014103 10,038,184 210,400 X 210,400 BUSINESS OBJECTS SA-SP ADR COMMON 12328X107 9,868,598 603,584 X 603,584 1,732,462 105,961 X 105,961 C H ROBINSON WORLDWIDE INC COMMON 12541W100 8,351,580 255,400 X 255,400 8,993 275 X 275 CSG SYS INTL INC COMMON 126349109 53,985,342 6,226,683 X 6,226,683 34,983 4,035 X 4,035 CSX CORP COMMON 126408103 33,053,824 1,158,970 X 1,158,970 5,370,316 188,300 X 188,300 CV THERAPEUTICS INC. COMMON 126667104 5,391,403 299,024 X 299,024 Total 381,011,286 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 7 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE 1,694,586 93,987 X 93,987 CACI INTL INC COMMON 127190304 11,375,026 340,978 X 340,978 3,040,464 91,141 X 91,141 CADENCE DESIGN SYSTEM INC COMMON 127387108 106,747,780 10,674,778 X 10,674,778 93,800 9,380 X 9,380 CADMUS COMMUNICATIONS CORP COMMON 127587103 9,967,040 1,245,880 X 1,245,880 376,416 47,052 X 47,052 CALIFORNIA PIZZA KITCHEN INC COMMON 13054D109 2,322,908 100,996 X 100,996 1,414,615 61,505 X 61,505 CANON INC COMMON 138006309 38,353 1,093 X 1,093 428,695 12,217 X 12,217 CARDINAL HEALTH INC COMMON 14149Y108 12,888,893 226,240 X 226,240 CAREER EDUCATION CORP COMMON 141665109 18,821,970 384,750 X 384,750 5,251,171 107,342 X 107,342 CAREMARK RX INC COMMON 141705103 10,797,816 594,921 X 594,921 5,899,730 325,054 X 325,054 CARNIVAL CORP COMMON 143658102 2,367,843 98,210 X 98,210 35,442 1,470 X 1,470 CATERPILLAR INC DEL COMMON 149123101 2,632,200 53,500 X 53,500 CELL GENESYS INC COMMON 150921104 1,758,029 237,893 X 237,893 489,292 66,210 X 66,210 CELGENE CORP COMMON 151020104 2,316,556 88,825 X 88,825 1,434,556 55,006 X 55,006 CEPHALON INC COMMON 156708109 5,214,766 130,565 X 130,565 5,592 140 X 140 CHARLES RIVER LABORATORIES COMMON 159864107 58,652,922 2,298,312 X 2,298,312 53,209 2,085 X 2,085 CHARTER ONE FINL INC COMMON 160903100 12,198 441 X 441 CHEESECAKE FACTORY INC COMMON 163072101 7,868,910 243,846 X 243,846 1,469,318 45,532 X 45,532 CHEVRONTEXACO COMMON 166764100 93,895,397 1,452,365 X 1,452,365 25,441,908 393,533 X 393,533 Total 394,807,401 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 8 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE CHICOS FAS INC COMMON 168615102 24,793,820 1,239,691 X 1,239,691 2,615,240 130,762 X 130,762 CHOICE HOTELS INTL INC COMMON 169905106 3,789,140 155,420 X 155,420 810,391 33,240 X 33,240 CHOICEPOINT INC COMMON 170388102 6,935,093 204,575 X 204,575 3,055,950 90,146 X 90,146 CIRRUS LOGIC CORP COMMON 172755100 366,620 182,398 X 182,398 CISCO SYS INC COMMON 17275R102 100,433,736 7,737,576 X 7,737,576 295,256 22,747 X 22,747 CINTAS CORP COMMON 172908105 7,168,252 217,880 X 217,880 7,403 225 X 225 CITIGROUP INC COMMON 172967101 180,968,640 5,253,081 X 5,253,081 29,797,872 864,960 X 864,960 CITRIX SYS INC COMMON 177376100 31,668,685 2,406,435 X 2,406,435 31,584 2,400 X 2,400 CLARCOR INC COMMON 179895107 8,164,982 225,552 X 225,552 2,861,791 79,055 X 79,055 CLAYTON HOMES INC COMMON 184190106 9,113,686 825,515 X 825,515 405,168 36,700 X 36,700 CLEAR CHANNEL COMMUNICATIONS COMMON 184502102 97,293,923 2,868,335 X 2,868,335 228,790 6,745 X 6,745 COACH INCORPORATED COMMON 189754104 2,676,584 69,830 X 69,830 757,018 19,750 X 19,750 COCA COLA CO COMMON 191216100 30,202,735 746,115 X 746,115 161,920 4,000 X 4,000 COGNEX CORP COMMON 192422103 7,796,930 368,127 X 368,127 1,535,253 72,486 X 72,486 COGNOS INC COMMON 19244C109 5,228,779 230,113 X 230,113 1,562,546 68,766 X 68,766 COLLEGE HORIZON 17 COMMON 19499X915 9,229,680 1,002,137 X 1,002,137 COLLEGE HORIZON 2 COMMON 19499X923 4,992,328 519,493 X 519,493 COLLEGE HORIZON SENIOR COMMON 19499X931 1,278,409 127,327 X 127,327 Total 576,228,203 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 9 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE COLLEGE HORIZON 7 COMMON 19499X949 11,770,092 1,233,762 X 1,233,762 COMCAST CORP -CL A COMMON 20030N101 15,131,400 529,255 X 529,255 COMCAST CORP COMMON 20030N200 1,924,300 70,000 X 70,000 COMMERCIAL FEDERAL CORPORATION COMMON 201647104 12,197,952 561,600 X 561,600 643,672 29,635 X 29,635 COMMUNITY HEALTH SYSTEMS COMMON 203668108 24,677,685 1,204,377 X 1,204,377 8,252,081 402,737 X 402,737 COMMUNITY FIRST BANKSHARES INC COMMON 203902101 5,229,012 204,658 X 204,658 785,228 30,733 X 30,733 COMPANHIA VALE DO RIO DOCE ADR COMMON 204412209 673,750 25,000 X 25,000 MINAS BUENAVENTURA SPONSORED ADRCOMMON 204448104 750,000 30,000 X 30,000 COMPASS BANCSHARES INC COMMON 20449H109 12,508 400 X 400 COMPUTER ASSOC INTL INC COMMON 204912109 118,786,199 8,695,915 X 8,695,915 101,221 7,410 X 7,410 COMPUTER NETWORK TECH CORP COMMON 204925101 2,804,852 407,682 X 407,682 638,808 92,850 X 92,850 CONCORD EFS INC COMMON 206197105 7,477,700 795,500 X 795,500 CONOCOPHILLIPS COMMON 20825C104 29,652,806 553,224 X 553,224 CONSOLIDATED EDISON CO N Y INC COMMON 209115104 984,832 25,600 X 25,600 CONSTELLATION BRANDS INC - A COMMON 21036P108 11,585,740 510,385 X 510,385 601,845 26,513 X 26,513 CONTINENTAL AIRLS INC COMMON 210795308 7,631,053 1,490,440 X 1,490,440 454,426 88,755 X 88,755 CONVERGYS CORP COMMON 212485106 963,600 73,000 X 73,000 COOPER COS INC COMMON 216648402 11,113,770 371,698 X 371,698 3,751,374 125,464 X 125,464 CORINTHIAN COLLEGES INCORPORATED COMMON 218868107 16,749,541 424,039 X 424,039 5,725,802 144,957 X 144,957 CORNING INC COMMON 219350105 2,069,112 354,300 X 354,300 Total 303,140,360 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 10 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE 2,190 375 X 375 CORPORATE EXECUTIVE BOARD CO COMMON 21988R102 17,018,595 477,782 X 477,782 4,030,474 113,152 X 113,152 COST PLUS INC CALIF COMMON 221485105 1,853,244 70,412 X 70,412 405,407 15,403 X 15,403 COSTCO WHOLESALE CORPORATION COMMON 22160K105 92,573,451 3,082,699 X 3,082,699 24,913,248 829,612 X 829,612 COUNTRYWIDE FINANCIAL CORP COMMON 222372104 11,500 200 X 200 COVANCE INC COMMON 222816100 13,251,806 573,175 X 573,175 13,988 605 X 605 COX RADIO INC COMMON 224051102 22,167,849 1,072,984 X 1,072,984 8,043,702 389,337 X 389,337 CREDIT SUISSE GROUP-SPONSOR ADRCOMMON 225401108 14,356 826 X 826 171,975 9,895 X 9,895 CROMPTON CORPORATION COMMON 227116100 6,072,258 1,499,323 X 1,499,323 390,420 96,400 X 96,400 CUBIC CORP COMMON 229669106 18,187,269 1,114,416 X 1,114,416 2,551,469 156,340 X 156,340 CURAGEN CORPORATION COMMON 23126R101 1,103 269 X 269 CYBERONICS INC COMMON 23251P102 321 15 X 15 CYMER INC COMMON 232572107 5,609,317 236,980 X 236,980 2,292,700 96,861 X 96,861 DRS TECHNOLOGIES INC COMMON 23330X100 2,203,131 88,090 X 88,090 236,620 9,461 X 9,461 DSP GROUP INC. COMMON 23332B106 8,881,561 489,882 X 489,882 1,979,760 109,198 X 109,198 DSM NV - SPONSORED ADR COMMON 23332H202 22,395 2,323 X 2,323 273,601 28,380 X 28,380 DADE BEHRING HOLDINGS INC COMMON 23342J206 5,002,875 266,820 X 266,820 3,938 210 X 210 DAIWA SECURITIES-UNSPONS ADR COMMON 234064202 9,775 238 X 238 119,515 2,910 X 2,910 Total 238,309,811 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 11 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE DANAHER CORP DEL COMMON 235851102 10,793,518 164,135 X 164,135 10,522 160 X 160 DEERE & CO COMMON 244199105 12,601,675 320,980 X 320,980 DEL GLOBAL TECHNOLOGIES CORPORATICOMMON 245073101 1,900 819 X 819 DELL COMPUTER CORP COMMON 247025109 87,344,890 3,198,275 X 3,198,275 166,181 6,085 X 6,085 DEVON ENERGY CORPORATION COMMON 25179M103 21,051,888 436,580 X 436,580 DIAGNOSTIC PRODS CORP COMMON 252450101 14,063,209 376,525 X 376,525 4,560,323 122,097 X 122,097 DIEBOLD INC COMMON 253651103 8,829,491 260,150 X 260,150 9,334 275 X 275 DISNEY WALT CO COMMON 254687106 3,389,244 199,133 X 199,133 50,124 2,945 X 2,945 DIXONS GROUP PLC COMMON 255875205 43,405 10,705 X 10,705 DOCTOR REDDYS LAB - ADR COMMON 256135203 972,000 50,000 X 50,000 DOCUMENTUM INC COMMON 256159104 15,546,846 1,184,973 X 1,184,973 5,755,980 438,718 X 438,718 DOW CHEM CO COMMON 260543103 121,702,644 4,407,919 X 4,407,919 27,144,302 983,133 X 983,133 DU PONT E I DE NEMOURS & CO COMMON 263534109 31,865 820 X 820 DYNEGY INC COMMON 26816Q101 16,052 6,150 X 6,150 E M C CORP MASS COMMON 268648102 2,976,953 411,750 X 411,750 42,404 5,865 X 5,865 ENSCO INTL INC COMMON 26874Q100 7,413,053 290,594 X 290,594 4,885,905 191,529 X 191,529 EOG RESOURCES INC COMMON 26875P101 3,968,738 100,322 X 100,322 2,681,812 67,791 X 67,791 EAST WEST BANCORP INCORPORATED COMMON 27579R104 12,818,514 415,511 X 415,511 4,363,054 141,428 X 141,428 EATON VANCE CORP COMMON 278265103 2,351,411 87,969 X 87,969 Total 375,587,235 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 12 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE 1,467,504 54,901 X 54,901 EBAY INC COMMON 278642103 30,495,766 357,470 X 357,470 32,844 385 X 385 ECOLAB INC COMMON 278865100 12,169,958 246,705 X 246,705 12,086 245 X 245 EDUCATION MGMT CORP COMMON 28139T101 6,711,506 168,758 X 168,758 1,465,604 36,852 X 36,852 J.D. EDWARDS & CO COMMON 281667105 59,207,430 5,367,854 X 5,367,854 7,317,975 663,461 X 663,461 EDWARDS LIFESCIENCES CORP COMMON 28176E108 25,494,686 930,463 X 930,463 4,438,636 161,994 X 161,994 EL PASO CORPORATION COMMON 28336L109 30,250 5,000 X 5,000 18,513 3,060 X 3,060 ELECTRONIC ARTS INC COMMON 285512109 40,239,354 686,210 X 686,210 43,394 740 X 740 EMBRAER AIRCRAFT CORP - ADR COMMON 29081M102 579,500 50,000 X 50,000 EMCOR GROUP INC COMMON 29084Q100 6,182,031 128,125 X 128,125 2,235,519 46,332 X 46,332 ENPRO INDUSTRIES INCORPORATED COMMON 29355X107 2,308 580 X 580 ENTERCOM COMMUNICATIONS CORP COMMON 293639100 4,634,042 105,535 X 105,535 2,900,914 66,065 X 66,065 ENZON PHARMACEUTICALS INC COMMON 293904108 13,439,002 1,184,053 X 1,184,053 2,482,177 218,694 X 218,694 EON LABS INCORPORATED COMMON 29412E100 12,453,281 466,415 X 466,415 421,860 15,800 X 15,800 EQUITABLE RES INC COMMON 294549100 13,513,165 360,255 X 360,255 836,435 22,299 X 22,299 EXAR CORP COMMON 300645108 10,813,897 850,818 X 850,818 3,697,441 290,908 X 290,908 EXELON CORPORATION COMMON 30161N101 18,702,614 371,010 X 371,010 EXPEDITORS INTL WASH INC COMMON 302130109 14,262,084 396,720 X 396,720 1,405,537 39,097 X 39,097 Total 297,707,311 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 13 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE EXXON MOBIL CORP COMMON 30231G102 52,227,847 1,494,359 X 1,494,359 FNB CORP PA COMMON 302520101 8,021,577 280,083 X 280,083 1,478,798 51,634 X 51,634 FAIR ISAAC & CO INC COMMON 303250104 53,893,085 1,060,470 X 1,060,470 52,345 1,030 X 1,030 FAMILY DLR STORES INC COMMON 307000109 2,164,040 70,079 X 70,079 1,413,069 45,760 X 45,760 FASTENAL CO COMMON 311900104 6,184,745 219,395 X 219,395 6,061 215 X 215 FANNIE MAE COMMON 313586109 105,524,827 1,614,764 X 1,614,764 30,523,221 467,073 X 467,073 FIDELITY NATL FINL INC COMMON 316326107 12,194,965 357,100 X 357,100 FIRST DATA CORP COMMON 319963104 86,292,479 2,331,599 X 2,331,599 140,638 3,800 X 3,800 FISERV INC COMMON 337738108 9,748,412 309,670 X 309,670 10,231 325 X 325 FLEET BOSTON FINANCIAL CORP COMMON 339030108 101,644,957 4,256,489 X 4,256,489 24,743,716 1,036,169 X 1,036,169 FORD MOTOR COMPANY COMMON 345370860 50,823,521 6,758,447 X 6,758,447 12,455,278 1,656,287 X 1,656,287 FOREST LABS INC COMMON 345838106 8,822,476 163,470 X 163,470 FRANCE TELECOM SA - SP ADR COMMON 35177Q105 18,818 825 X 825 191,718 8,405 X 8,405 FREDS INC COMMON 356108100 18,891,491 678,330 X 678,330 1,572,745 56,472 X 56,472 FURNITURE BRANDS INTL INC COMMON 360921100 10,417,363 532,585 X 532,585 623,025 31,852 X 31,852 GALLAHER GROUP PLC- SPONS ADR COMMON 363595109 1,758,429 45,900 X 45,900 GANNETT COMPANY COMMON 364730101 819,101 11,630 X 11,630 GENETECH INC COMMON 368710406 9,368,676 267,600 X 267,600 138,290 3,950 X 3,950 Total 612,165,942 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 14 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE GENERAL ELEC CO COMMON 369604103 170,436,416 6,683,781 X 6,683,781 20,402,321 800,091 X 800,091 GENERAL MLS INC COMMON 370334104 18,586,222 408,040 X 408,040 GENERAL MTRS CORP COMMON 370442105 13,753,606 409,090 X 409,090 GENTEX CORP COMMON 371901109 13,891,119 545,820 X 545,820 14,634 575 X 575 GENUINE PARTS CO COMMON 372460105 13,424 440 X 440 GENZYME CORP COMMON 372917104 7,406,640 203,200 X 203,200 6,561 180 X 180 GEORGIA GULF CORP COMMON 373200203 13,733,290 682,230 X 682,230 14,393 715 X 715 GEORGIA PACIFIC CORP COMMON 373298108 83,415,985 6,001,150 X 6,001,150 19,372,791 1,393,726 X 1,393,726 GEOGRAPHIC NETWORK AFFILIATES INCOMMON 373999994 100,000 X 100,000 GILEAD SCIENCES INC COMMON 375558103 6,061,466 144,355 X 144,355 7,558 180 X 180 GILLETTE CO COMMON 375766102 33,208,088 1,073,306 X 1,073,306 59,405 1,920 X 1,920 GLADSTONE CAPITAL CORPORATION COMMON 376535100 4,922,862 304,256 X 304,256 1,248,530 77,165 X 77,165 GLAXOSMITHKLINE PLC- ADS COMMON 37733W105 922,435 26,213 X 26,213 324,452 9,220 X 9,220 GOLDEN WEST FINL CORP DEL COMMON 381317106 515,738 7,170 X 7,170 GOODRICH CORPORATION COMMON 382388106 61,680,686 4,386,962 X 4,386,962 12,196,867 867,487 X 867,487 GRACO INC COMMON 384109104 8,529,221 303,531 X 303,531 3,079,367 109,586 X 109,586 GREENPOINT FINL CORP COMMON 395384100 17,973,739 401,110 X 401,110 GROUPE DANONE - SPONS ADR COMMON 399449107 18,700 745 X 745 216,739 8,635 X 8,635 GUCCI GROUP NV NY REGULAR SHARESCOMMON 401566104 2,258,847 23,700 X 23,700 Total 514,272,100 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 15 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE GYMBOREE CORP COMMON 403777105 7,139,533 474,703 X 474,703 2,425,095 161,243 X 161,243 HCA HEALTHCARE COMPANY COMMON 404119109 44,255 1,070 X 1,070 HCC INS HLDGS INC COMMON 404132102 11,912,545 466,062 X 466,062 4,428,142 173,245 X 173,245 HSBC HOLDINGS PLC -SPON ADR COMMON 404280406 30,672 600 X 600 348,536 6,818 X 6,818 HARLEY DAVIDSON INC COMMON 412822108 11,797,126 297,082 X 297,082 147,642 3,718 X 3,718 HARMAN INTL INDS INC COMMON 413086109 13,192,893 225,250 X 225,250 776,931 13,265 X 13,265 HARMONY GOLD MNG-SPON ADR COMMON 413216300 2,176,940 178,000 X 178,000 HARRAHS ENTMT INC COMMON 413619107 3,058,205 85,664 X 85,664 2,012,480 56,372 X 56,372 HEALTHETECH INCORPORATED COMMON 422210104 1,898,820 1,150,800 X 1,150,800 HEARTLAND EXPRESS INC COMMON 422347104 8,270,838 431,222 X 431,222 2,864,111 149,328 X 149,328 HEINEKEN NV - UNSPON ADR COMMON 423012202 19,361 522 X 522 214,566 5,785 X 5,785 HELLENIC TELECOMMUN ORG-ADR COMMON 423325307 407,485 86,149 X 86,149 HELMERICH & PAYNE INC COMMON 423452101 74,810 2,920 X 2,920 HEWITT ASSOCIATES INCORPORATED COMMON 42822Q100 1,191,494 40,527 X 40,527 725,004 24,660 X 24,660 HEWLETT PACKARD CO COMMON 428236103 52,529,953 3,378,132 X 3,378,132 147,352 9,476 X 9,476 HILB ROGAL & HAMILTON CO COMMON 431294107 6,932,531 221,912 X 221,912 1,289,993 41,293 X 41,293 HILTON HOTELS CORP COMMON 432848109 7,915,164 681,754 X 681,754 3,037,246 261,606 X 261,606 HOLLYWOOD ENTMT CORP COMMON 436141105 13,219,701 826,748 X 826,748 2,674,264 167,246 X 167,246 Total 162,903,686 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 16 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE HOME DEPOT INC COMMON 437076102 4,275,302 175,505 X 175,505 4,507 185 X 185 HOT TOPIC INC COMMON 441339108 3,988,411 171,103 X 171,103 1,040,488 44,637 X 44,637 HUNT J B TRANS SVCS INC COMMON 445658107 6,588,805 244,755 X 244,755 265,566 9,865 X 9,865 IDEC PHARMACEUTICALS CORP COMMON 449370105 13,681,156 399,800 X 399,800 66,387 1,940 X 1,940 IMS HEALTH INC COMMON 449934108 859 55 X 55 IDEX CORP COMMON 45167R104 5,979,220 206,180 X 206,180 2,111,345 72,805 X 72,805 IDEXX LABS CORP COMMON 45168D104 8,636,716 246,975 X 246,975 9,092 260 X 260 ILLINOIS TOOL WKS INC COMMON 452308109 17,410,692 299,410 X 299,410 INDEPENDENT ENERGY HOLDINGS -ADR COMMON 45384X108 51 X 51 INFORMATICA CORP COMMON 45666Q102 23,159,867 3,590,677 X 3,590,677 4,695,968 728,057 X 728,057 INFOSYS TECHNOLOGIES-AP ADR COMMON 456788108 2,404,920 39,200 X 39,200 ING GROEP N V COMMON 456837103 12,720 1,090 X 1,090 155,911 13,360 X 13,360 INNKEEPERS USA TR COMMON 4576J0104 8,229,488 1,266,075 X 1,266,075 538,428 82,835 X 82,835 INTEGRA LIFESCIENCES HOLDING COMMON 457985208 2,091,321 90,927 X 90,927 780,873 33,951 X 33,951 INTEGRATED CIRCUIT SYSTEMS, INC. COMMON 45811K208 21,049 970 X 970 INTEL CORP COMMON 458140100 47,858,235 2,939,695 X 2,939,695 318,648 19,573 X 19,573 INTERMUNE INC COMMON 45884X103 11,646,433 545,245 X 545,245 2,391,359 111,955 X 111,955 INTERNATIONAL BUSINESS MACHS COMMON 459200101 207,451,742 2,645,056 X 2,645,056 29,235,724 372,762 X 372,762 Total 405,051,229 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 17 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE INTERNATIONAL GAME TECHNOLOGY COMMON 459902102 26,558,123 324,275 X 324,275 26,208 320 X 320 INTL PAPER CO COMMON 460146103 103,678,728 3,067,418 X 3,067,418 24,170,988 715,118 X 715,118 INTERPUBLIC GROUP COS INC COMMON 460690100 9 1 X 1 INTERSIL HOLDING CORP COMMON 46069S109 611,508 39,300 X 39,300 INTUIT COMMON 461202103 15,375,318 413,315 X 413,315 4,836 130 X 130 IRON MOUNTAIN COMMON 462846106 5,610,204 146,672 X 146,672 1,369,924 35,815 X 35,815 ITO-YOKADO CO LTD SPON ADR COMMON 465714301 16,521 616 X 616 214,292 7,990 X 7,990 ITRON INC COMMON 465741106 28,889,835 1,728,895 X 1,728,895 26,903 1,610 X 1,610 JDS UNIPHASE CORP COMMON 46612J101 2,971,125 1,042,500 X 1,042,500 3,050 1,070 X 1,070 JP MORGAN CHASE & CO. COMMON 46625H100 136,989,409 5,777,706 X 5,777,706 25,803,498 1,088,296 X 1,088,296 JEFFERIES GROUP INC (NEW) COMMON 472319102 4,792,315 133,305 X 133,305 1,347,909 37,494 X 37,494 JOHNSON & JOHNSON COMMON 478160104 70,791,387 1,223,283 X 1,223,283 395,252 6,830 X 6,830 JUNIPER NETWORKS INC COMMON 48203R104 2,905,252 355,600 X 355,600 2,900 355 X 355 KLA-TENCORP CORP COMMON 482480100 13,885,783 386,345 X 386,345 4,852 135 X 135 KEY ENERGY GROUP INC COMMON 492914106 10,632,424 1,054,804 X 1,054,804 3,469,758 344,222 X 344,222 KEYCORP NEW COMMON 493267108 19,480,109 863,480 X 863,480 KIMBERLY CLARK CORP COMMON 494368103 65,893,724 1,449,488 X 1,449,488 16,750,828 368,474 X 368,474 KNIGHT RIDDER INC COMMON 499040103 10,528,830 179,980 X 179,980 Total 593,201,804 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 18 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE KNIGHT TRANSN INC COMMON 499064103 6,430,557 326,590 X 326,590 2,115,848 107,458 X 107,458 KOHLS CORP COMMON 500255104 12,771,803 225,730 X 225,730 28,856 510 X 510 KORN/FERRY INTERNATIONAL COMMON 500643200 8,146,104 1,243,680 X 1,243,680 219,294 33,480 X 33,480 LABORATORY CORP OF AMERICA HOLDICOMMON 50540R409 174,210,265 5,875,557 X 5,875,557 985,685 33,244 X 33,244 LAFARGE S.A. -SPONSORED ADR COMMON 505861401 9,610 672 X 672 115,473 8,075 X 8,075 LAM RESH CORP COMMON 512807108 1,720,486 151,044 X 151,044 1,074,330 94,317 X 94,317 LAMAR ADVERTISING CO COMMON 512815101 6,880,553 234,511 X 234,511 4,247,787 144,778 X 144,778 LEAR CORP COMMON 521865105 13,885,127 392,790 X 392,790 LENNAR CORP COMMON 526057104 12,295,080 229,600 X 229,600 LEXMARK INTERNATIONAL, INC. COMMON 529771107 201,048,440 3,002,964 X 3,002,964 173,735 2,595 X 2,595 LIFEPOINT HOSPITALS INCORPORATED COMMON 53219L109 17,058,956 679,369 X 679,369 5,679,932 226,202 X 226,202 LILLY ELI & CO COMMON 532457108 20,405,979 357,060 X 357,060 138,589 2,425 X 2,425 LINCARE HLDGS INC COMMON 532791100 4,743,845 154,573 X 154,573 507,981 16,552 X 16,552 LINEAR TECHNOLOGY CORP COMMON 535678106 6,194,374 200,660 X 200,660 LINENS N THINGS INC COMMON 535679104 2,032,000 100,000 X 100,000 LOCKHEED MARTIN CORP COMMON 539830109 16,191,393 340,513 X 340,513 LONE STAR TECHNOLOGIES INC COMMON 542312103 5,157,504 244,200 X 244,200 1,036,211 49,063 X 49,063 LOWES COS INC COMMON 548661107 18,079,586 442,910 X 442,910 LUBRIZOL CORP COMMON 549271104 660,220 22,000 X 22,000 Total 544,245,600 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 19 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE LYONDELL PETROCHEMICAL CO COMMON 552078107 14,918,967 1,069,460 X 1,069,460 674,413 48,345 X 48,345 MBIA INC COMMON 55262C100 15,456 400 X 400 MBNA CORP COMMON 55262L100 3,547,887 235,740 X 235,740 26,563 1,765 X 1,765 MGIC INVT CORP WIS COMMON 552848103 209,309 5,330 X 5,330 MGI PHARMA INCORPORATED COMMON 552880106 918,540 72,900 X 72,900 MACROVISION CORPORATION COMMON 555904101 12,588,073 1,049,881 X 1,049,881 4,470,196 372,827 X 372,827 MANDALAY RESORT GROUP COMMON 562567107 2,125,152 77,110 X 77,110 MARATHON OIL CORP COMMON 565849106 31,161 1,300 X 1,300 MARVEL ENTERPRISES INC COMMON 57383M108 232,176 16,800 X 16,800 MCDATA CORPORATION - CLASS A COMMON 580031201 12,898,486 1,501,570 X 1,501,570 3,979,704 463,295 X 463,295 MCGRAW HILL COS INC COMMON 580645109 41,358,126 743,985 X 743,985 38,635 695 X 695 MEDICAL STAFFING NETWORK HOLDINGSCOMMON 58463F104 4,445,237 419,362 X 419,362 1,073,356 101,260 X 101,260 MEDICINES COMPANY COMMON 584688105 12,524,831 671,933 X 671,933 4,445,621 238,499 X 238,499 MEDICIS PHARMACEUTICAL CORP COMMON 584690309 1,301,362 23,410 X 23,410 MEDIMMUNE INC COMMON 584699102 27,561,770 839,530 X 839,530 174,820 5,325 X 5,325 MEDTRONIC INC COMMON 585055106 123,400,989 2,734,951 X 2,734,951 28,577,293 633,362 X 633,362 MERCK & CO INC COMMON 589331107 28,225,943 515,260 X 515,260 124,351 2,270 X 2,270 MERCURY INTERACTIVE CORP COMMON 589405109 11,192,328 377,100 X 377,100 11,872 400 X 400 MERIDIAN GOLD INCORPORATED COMMON 589975101 1,381,401 146,180 X 146,180 Total 342,474,018 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 20 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE MERRILL LYNCH & CO INC COMMON 590188108 16,539,942 467,230 X 467,230 MICHAELS STORES INC COMMON 594087108 11,063,199 442,351 X 442,351 726,616 29,053 X 29,053 MICREL INC COMMON 594793101 4,497,646 488,294 X 488,294 1,500,775 162,934 X 162,934 MICROSOFT CORP COMMON 594918104 316,670,649 13,080,159 X 13,080,159 559,469 23,109 X 23,109 MINERALS TECHNOLOGIES INC COMMON 603158106 20,185,800 529,672 X 529,672 3,370,296 88,436 X 88,436 MITSUBISHI TOKYO FINANCE - ADR COMMON 606816106 11,681 3,140 X 3,140 140,170 37,680 X 37,680 MOHAWK INDS INC COMMON 608190104 16,197,967 337,880 X 337,880 MOLEX INC COMMON 608554101 4,611,756 214,700 X 214,700 4,833 225 X 225 MOTOROLA INC COMMON 620076109 18,445,984 2,233,170 X 2,233,170 14,579 1,765 X 1,765 MUELLER INDS INC COMMON 624756102 10,317,354 413,190 X 413,190 545,020 21,827 X 21,827 NPS PHARMACEUTICALS INCORPORATED COMMON 62936P103 1,146,359 74,150 X 74,150 NTT DOCOMO INC COMMON 62942M201 476,554 25,268 X 25,268 254,799 13,510 X 13,510 NATIONAL CITY CORP COMMON 635405103 7,917,755 284,300 X 284,300 NATIONAL SEMICONDUCTOR CORP COMMON 637640103 3,498,312 205,300 X 205,300 3,664 215 X 215 NAVISTAR INTL CORP NEW COMMON 63934E108 22,410,235 910,615 X 910,615 828,496 33,665 X 33,665 NEIMAN MARCUS GRP - CL A COMMON 640204202 87,550 3,020 X 3,020 NETWORKS ASSOCS INC COMMON 640938106 49,052,499 3,551,955 X 3,551,955 36,251 2,625 X 2,625 NESTLE S A COMMON 641069406 28,800 582 X 582 323,529 6,538 X 6,538 Total 511,468,537 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 21 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE NETIQ CORP COMMON 64115P102 35,324,491 3,165,277 X 3,165,277 18,749 1,680 X 1,680 NEW YORK COMMUNITY BANCORP COMMON 649445103 7,431,882 249,392 X 249,392 2,975,411 99,846 X 99,846 NEWFIELD EXPL CO COMMON 651290108 3,328,574 98,217 X 98,217 2,157,200 63,653 X 63,653 NEWS CORP LTD COMMON 652487703 1,737,890 67,100 X 67,100 NEXTEL COMMUNICATIONS INC COMMON 65332V103 7,001,631 522,900 X 522,900 7,431 555 X 555 NIPPON TELEG & TEL CORP COMMON 654624105 22,261 1,311 X 1,311 283,023 16,668 X 16,668 NISSAN MOTOR CO LTD COMMON 654744408 16,691 1,254 X 1,254 201,287 15,123 X 15,123 NOKIA CORP-SPONSORED ADR A COMMON 654902204 27,551,856 1,966,585 X 1,966,585 439,199 31,349 X 31,349 NOBLE ENERGY INC COMMON 655044105 6,254,153 182,390 X 182,390 NORTH FORK BANCORPORATION NY COMMON 659424105 3,308,442 112,341 X 112,341 2,180,301 74,034 X 74,034 NOVA CHEMICALS CORP COMMON 66977W109 12,441,072 679,840 X 679,840 494,192 27,005 X 27,005 NOVARTIS A G COMMON 66987V109 31,872 860 X 860 345,918 9,334 X 9,334 NOVELLUS SYS INC COMMON 670008101 5,494,360 201,480 X 201,480 5,590 205 X 205 NOVEN PHARMACEUTICALS INC COMMON 670009109 258,820 18,330 X 18,330 NUCOR CORP COMMON 670346105 7,634 200 X 200 OSI PHARMACEUTICALS INC COMMON 671040103 6,816,448 426,028 X 426,028 1,777,984 111,124 X 111,124 OAKLEY INC COMMON 673662102 10,107,471 1,225,148 X 1,225,148 3,643,885 441,683 X 441,683 OCCIDENTAL PETE CORP DEL COMMON 674599105 2,322,200 77,510 X 77,510 Total 143,987,917 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 22 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE OCEAN ENERGY INC (NEW) COMMON 67481E106 3,422,120 171,106 X 171,106 2,176,260 108,813 X 108,813 OCEAN WEST HOLDING CORPORATION COMMON 67517P109 20 100 X 100 ODYSSEY HEALTHCARE INCORPORATED COMMON 67611V101 7,737,539 325,517 X 325,517 2,279,804 95,911 X 95,911 OFFICE DEPOT INC COMMON 676220106 2,978,120 251,743 X 251,743 1,858,162 157,072 X 157,072 OLD REP INTL CORP COMMON 680223104 10,817,700 404,400 X 404,400 OLIN CORP COMMON 680665205 16,788,862 923,988 X 923,988 1,142,384 62,872 X 62,872 OMNICARE INC COMMON 681904108 44,760 1,645 X 1,645 OMNICELL INCORPORATED COMMON 68213N109 505,106 152,600 X 152,600 ORACLE CORP COMMON 68389X105 15,342,057 1,414,320 X 1,414,320 95,242 8,780 X 8,780 OSHKOSH TRUCK CORPORATION COMMON 688239201 7,908,549 126,943 X 126,943 2,225,854 35,728 X 35,728 OUTBACK STEAKHOUSE INC COMMON 689899102 4,353,509 123,050 X 123,050 OXFORD HEALTH PLANS INC COMMON 691471106 9,602,109 316,275 X 316,275 390,885 12,875 X 12,875 P & O PRINCESS CRUISES - ADR COMMON 693070104 25,417 953 X 953 162,020 6,075 X 6,075 P.F. CHANGS CHINA BISTRO INC COMMON 69333Y108 15,522,462 419,526 X 419,526 2,491,950 67,350 X 67,350 PMI GROUP INC COMMON 69344M101 23,798,318 931,441 X 931,441 647,437 25,340 X 25,340 PNC BK CORP COMMON 693475105 966,264 22,800 X 22,800 POSCO SPONSORED ADR COMMON 693483109 16,193 822 X 822 205,865 10,450 X 10,450 PPG INDS INC COMMON 693506107 2,614,640 58,000 X 58,000 PACCAR INC COMMON 693718108 6,666,305 132,610 X 132,610 Total 142,785,914 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 23 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE PACTIV CORPORATION COMMON 695257105 9,639,232 474,839 X 474,839 2,481,939 122,263 X 122,263 PARAMETRIC TECHNOLOGY CORP COMMON 699173100 234,360 108,000 X 108,000 PATTERSON-UTI ENERGY INC COMMON 703481101 15,297,460 473,459 X 473,459 3,524,407 109,081 X 109,081 PENN NATL GAMING INC COMMON 707569109 4,825,196 271,842 X 271,842 770,918 43,432 X 43,432 PENNEY J C INC COMMON 708160106 100,637,285 5,124,098 X 5,124,098 25,016,745 1,273,765 X 1,273,765 PEOPLESOFT INC COMMON 712713106 14,028,570 916,900 X 916,900 2,831 185 X 185 PEPCO HOLDINGS INC COMMON 713291102 19,140 1,100 X 1,100 PEPSICO INC COMMON 713448108 4,313,000 107,825 X 107,825 64,200 1,605 X 1,605 PERFORMANCE FOOD GROUP CO COMMON 713755106 751,906 24,524 X 24,524 PETCO ANIMAL SUPPLIES COMMON 716016209 7,967,028 422,654 X 422,654 2,455,646 130,273 X 130,273 PFIZER INC COMMON 717081103 97,104,936 3,116,333 X 3,116,333 445,276 14,290 X 14,290 PHARMACEUTICAL PROD DEV INC COMMON 717124101 13,081,544 487,180 X 487,180 14,097 525 X 525 PHARMACOPEIA INC COMMON 71713B104 9,429,250 1,075,171 X 1,075,171 375,768 42,847 X 42,847 PHARMACIA CORP. COMMON 71713U102 43,563,697 1,006,090 X 1,006,090 182,510 4,215 X 4,215 PIONEER NAT RES CO COMMON 723787107 12,754,414 508,144 X 508,144 2,537,359 101,090 X 101,090 PITNEY BOWES INC COMMON 724479100 9,775,819 306,260 X 306,260 72,458 2,270 X 2,270 PITTSTON BRINKS GROUP COMMON 725701106 9,185,008 662,699 X 662,699 516,548 37,269 X 37,269 PLANTRONICS INC NEW COMMON 727493108 11,838,191 810,280 X 810,280 Total 402,906,738 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 24 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE 7,378 505 X 505 PORTUGAL TELECOM S A COMMON 737273102 17,562 2,575 X 2,575 131,660 19,305 X 19,305 POWERWAVE TECHNOLOGIES INC COMMON 739363109 227,732 66,980 X 66,980 140,240 41,247 X 41,247 PRAXAIR INC COMMON 74005P104 133,551,303 2,370,032 X 2,370,032 33,777,655 599,426 X 599,426 PRICE T ROWE GROUP, INC. COMMON 74144T108 1,964,708 72,445 X 72,445 1,223,248 45,105 X 45,105 PRINTCAFE SOFTWARE INCORPORATION COMMON 742562101 967,818 399,100 X 399,100 PRIORITY HEALTHCARE CORP COMMON 74264T102 21,788,001 817,561 X 817,561 6,980,355 261,927 X 261,927 PROCTER & GAMBLE CO COMMON 742718109 58,603,449 658,096 X 658,096 54,766 615 X 615 PROGRESS SOFTWARE CORP COMMON 743312100 10,301,577 573,904 X 573,904 2,411,744 134,359 X 134,359 PROTEIN DESIGN LABS INC COMMON 74369L103 11,356,904 1,528,520 X 1,528,520 683,226 91,955 X 91,955 PULTE HOMES CORP COMMON 745867101 12,206,009 243,390 X 243,390 QLOGIC CORP COMMON 747277101 11,124,916 299,540 X 299,540 11,142 300 X 300 QUALCOMM INC COMMON 747525103 4,724,136 131,226 X 131,226 70,776 1,966 X 1,966 QUEST DIAGNOSTICS INC COMMON 74834L100 190,290,825 3,187,985 X 3,187,985 248,907 4,170 X 4,170 RF MICRO DEVICES INC COMMON 749941100 2,803,846 466,700 X 466,700 3,004 500 X 500 RADIAN GROUP INC. COMMON 750236101 9,738,615 291,750 X 291,750 RADIOSHACK CORPORATION COMMON 750438103 64,975 2,915 X 2,915 RARE HOSPITALITY INTL INC COMMON 753820109 15,729,600 565,000 X 565,000 4,293,735 154,229 X 154,229 RAYTHEON COMPANY COMMON 755111507 12,313,715 434,040 X 434,040 Total 547,813,524 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 25 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE READERS DIGEST ASSN INC COMMON 755267101 20,931 2,050 X 2,050 REGAL ENTERTAINMENT GROUP - A COMMON 758766109 2,324,238 129,484 X 129,484 1,443,898 80,440 X 80,440 RESOURCES CONNECTION INCORPORATEDCOMMON 76122Q105 18,165,821 853,657 X 853,657 5,365,497 252,138 X 252,138 RESPIRONICS INC COMMON 761230101 14,400,801 418,980 X 418,980 4,700,075 136,745 X 136,745 ROBERT HALF INTL INC COMMON 770323103 3,909,892 293,756 X 293,756 2,395,840 180,003 X 180,003 ROCHE HOLDINGS LTD COMMON 771195104 24,363 407 X 407 282,237 4,715 X 4,715 ROCKWELL AUTOMATION, INC COMMON 773903109 19,645,439 949,055 X 949,055 20,700 1,000 X 1,000 ROHM & HAAS CO COMMON 775371107 5,991,736 201,200 X 201,200 6,403 215 X 215 ROWAN COS INC COMMON 779382100 14,632,152 744,260 X 744,260 ROYAL DUTCH PETE CO COMMON 780257804 20,458,538 502,050 X 502,050 SBC COMMUNICATIONS INC COMMON 78387G103 19,648,750 979,499 X 979,499 SK TELECOM CO LTD-ADR COMMON 78440P108 9,738 715 X 715 107,053 7,860 X 7,860 SLM CORP COMMON 78442P106 4,148,408 37,400 X 37,400 SABRE GROUP HLDGS INC COMMON 785905100 29,529,437 1,856,030 X 1,856,030 29,513 1,855 X 1,855 ST JUDE MED INC COMMON 790849103 9,316,125 191,100 X 191,100 105,788 2,170 X 2,170 ST PAUL COS INC COMMON 792860108 102,392,534 3,219,891 X 3,219,891 27,687,688 870,682 X 870,682 SANGSTAT MED CORP COMMON 801003104 1,109,707 113,120 X 113,120 SAP AG-SPONSORED ADR COMMON 803054204 3,965,200 209,135 X 209,135 57,733 3,045 X 3,045 SATYAM COMPUTER SERVICES LTD - ADCOMMON 804098101 608,249 73,460 X 73,460 Total 312,504,481 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 26 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE SCHEIN HENRY INC COMMON 806407102 1,526,680 33,851 X 33,851 939,568 20,833 X 20,833 SCIENTIFIC ATLANTA INC COMMON 808655104 577,080 42,000 X 42,000 SEARS ROEBUCK & CO COMMON 812387108 80,163,993 3,319,420 X 3,319,420 19,990,404 827,760 X 827,760 SELECT MEDICAL CORPORATION COMMON 816196109 28,350,646 1,989,519 X 1,989,519 6,159,021 432,212 X 432,212 SEMTECH CORP COMMON 816850101 12,373,338 816,722 X 816,722 4,101,226 270,708 X 270,708 SEROLOGICALS CORP COMMON 817523103 4,355,239 512,381 X 512,381 833,740 98,087 X 98,087 SHELL TRANSPORT & TRADING CO-ADR COMMON 822703609 31,982 883 X 883 360,135 9,943 X 9,943 SICOR INC COMMON 825846108 11,435,409 684,755 X 684,755 1,083,413 64,875 X 64,875 SIEBEL SYS INC COMMON 826170102 7,848,999 979,900 X 979,900 4,606 575 X 575 SILICON IMAGE INC. COMMON 82705T102 3,223,665 809,966 X 809,966 1,125,791 282,862 X 282,862 SKYWORKS SOLUTIONS INC COMMON 83088M102 11,002,678 1,766,080 X 1,766,080 458,777 73,640 X 73,640 SMITH AND NEPHEW PLC SPONSORED ADCOMMON 83175M205 27,309 438 X 438 333,947 5,356 X 5,356 SMITH INTL INC COMMON 832110100 14,580,112 413,855 X 413,855 932,362 26,465 X 26,465 SMITHFIELD FOODS INC COMMON 832248108 13,414,040 757,000 X 757,000 14,265 805 X 805 SMURFIT-STONE CONTAINER CORP COMMON 832727101 13,744,682 1,031,883 X 1,031,883 Total 238,993,105 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 27 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE 831,328 62,412 X 62,412 SOCIETE GENERALE FRANCE COMMON 83364L109 27,535 2,666 X 2,666 334,352 32,373 X 32,373 SONIC CORP COMMON 835451105 3,506,860 137,740 X 137,740 898,102 35,275 X 35,275 SONOSITE INCORPORATED COMMON 83568G104 119,069 7,584 X 7,584 SONY CORP SPONSORED ADR COMMON 835699307 15,527 442 X 442 191,459 5,450 X 5,450 SOUTHERN CO COMMON 842587107 13,318,168 468,290 X 468,290 SOUTHWEST BANCORPORATION TEX COMMON 84476R109 7,229,452 240,741 X 240,741 2,578,496 85,864 X 85,864 SOVEREIGN BANCORP INC COMMON 845905108 8,405,565 606,900 X 606,900 SPARTECH CORP COMMON 847220209 2,794,069 144,471 X 144,471 410,685 21,235 X 21,235 SPRINT CORP COMMON 852061100 7,940,768 675,810 X 675,810 81,721 6,955 X 6,955 SPRINT CORP (PCS GROUP) COMMON 852061506 4,115,840 944,000 X 944,000 3,750 860 X 860 STARBUCKS CORP COMMON 855244109 6,465,760 251,000 X 251,000 6,569 255 X 255 STARWOOD HOTELS & RESORTS WORLDWICOMMON 85590A203 22,210,273 933,597 X 933,597 1,245,787 52,366 X 52,366 STATION CASINOS INC COMMON 857689103 16,003,280 758,090 X 758,090 3,387,479 160,468 X 160,468 STEWART & STEVENSON SVCS INC COMMON 860342104 9,441,733 866,214 X 866,214 413,895 37,972 X 37,972 ST MICROELECTRONICS ADR COMMON 861012102 18,333 970 X 970 246,551 13,045 X 13,045 SUN MICROSYSTEMS INC COMMON 866810104 10,278,226 3,152,830 X 3,152,830 SUNGARD DATA SYS INC COMMON 867363103 191,484,529 8,989,884 X 8,989,884 146,331 6,870 X 6,870 SUNTRUST BKS INC COMMON 867914103 21,587 410 X 410 Total 314,173,076 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 28 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE SWIFT TRANSN CO COMMON 870756103 4,856,000 303,500 X 303,500 4,960 310 X 310 SWISS REINSURANCE COMPANY SPONSORCOMMON 870887205 18,054 368 X 368 210,216 4,285 X 4,285 SYMANTEC CORP COMMON 871503108 207,717,237 5,301,614 X 5,301,614 170,237 4,345 X 4,345 SYMBOL TECHNOLOGIES INC COMMON 871508107 3,916,689 454,900 X 454,900 4,133 480 X 480 SYNOPSYS INC COMMON 871607107 335,627,579 7,884,076 X 7,884,076 230,561 5,416 X 5,416 TCF FINL CORP COMMON 872275102 1,875,994 46,853 X 46,853 1,171,170 29,250 X 29,250 T&HQ INC COMMON 872443403 40,400,677 3,093,800 X 3,093,800 TAIWAN SEMICONDUCTOR MFG LTD-ADR COMMON 874039100 308,484 45,100 X 45,100 TAKE-TWO INTERACTIVE SOFTWARE COMMON 874054109 60,983,322 2,735,905 X 2,735,905 52,382 2,350 X 2,350 TALBOTS INC COMMON 874161102 4,871,475 189,257 X 189,257 1,722,083 66,903 X 66,903 TEKELEC COMMON 879101103 6,201,921 714,507 X 714,507 1,362,014 156,914 X 156,914 TEMPLE INLAND INC COMMON 879868107 2,000,900 53,500 X 53,500 TEVA PHARMACEUTICAL-SP ADR COMMON 881624209 7,998,966 192,052 X 192,052 TEXAS INSTRS INC COMMON 882508104 26,377,390 1,611,325 X 1,611,325 62,239 3,802 X 3,802 THOMSON MULTIMEDIA SPONSORED ADR COMMON 885118109 14,877 1,305 X 1,305 184,794 16,210 X 16,210 THORATEC CORPORATION COMMON 885175307 15,946,711 1,256,636 X 1,256,636 5,691,313 448,488 X 448,488 3M CO COMMON 88579Y101 12,131,799 93,300 X 93,300 TICE TECHNOLOGY INC COMMON 886337104 13 125 X 125 TOTAL FINA ELF SA SPON ADR COMMON 89151E109 358,994 5,674 X 5,674 Total 742,473,182 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 29 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE 342,987 5,421 X 5,421 TPG NV-ADR COMMON 892339102 29,690 1,978 X 1,978 356,397 23,744 X 23,744 TRAVELERS PPTY CAS CORP CL A COMMON 89420G109 2,762 196 X 196 TRAVELERS PPTY CAS CORP COMMON 89420G406 5,686 403 X 403 TRIBUNE CO NEW COMMON 896047107 11,485,202 255,170 X 255,170 TRIMBLE NAVIGATION LTD COMMON 896239100 15,570,595 820,801 X 820,801 747,096 39,383 X 39,383 UCBH HOLDINGS INCORPORATED COMMON 90262T308 9,911,817 225,371 X 225,371 1,800,937 40,949 X 40,949 UST INC COMMON 902911106 488,520 17,700 X 17,700 USA INTERACTIVE COMMON 902984103 60,673,322 2,264,775 X 2,264,775 56,661 2,115 X 2,115 UNILEVER PLC SPNSRD ADR NEW COMMON 904767704 41,904 1,131 X 1,131 471,647 12,730 X 12,730 UNILEVER N V COMMON 904784709 2,151,728 36,200 X 36,200 UNITED BANKSHARES INC WEST VA COMMON 909907107 5,089,266 183,728 X 183,728 919,252 33,186 X 33,186 UNITED PARCEL SERVICE - CL B COMMON 911312106 3,646,290 63,970 X 63,970 51,870 910 X 910 UNITED TECHNOLOGIES CORP COMMON 913017109 103,006,197 1,782,731 X 1,782,731 26,566,377 459,785 X 459,785 UNITEDHEALTH GROUP COMMON 91324P102 482,184 5,260 X 5,260 UNIVERSAL COMPRESSION HOLDINGS COMMON 913431102 13,207,731 756,890 X 756,890 807,673 46,285 X 46,285 UNIVISION COMMUNICATIONS INC COMMON 914906102 15,314,828 624,840 X 624,840 4,534 185 X 185 UNOCAL CORP COMMON 915289102 17,891 680 X 680 UNUMPROVIDENT CORP COMMON 91529Y106 57,617,914 5,879,379 X 5,879,379 16,452,544 1,678,831 X 1,678,831 URBAN OUTFITTERS INC COMMON 917047102 10,993,659 488,390 X 488,390 Total 358,315,159 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 30 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE 462,671 20,554 X 20,554 VALSPAR CORP COMMON 920355104 2,677,395 65,414 X 65,414 1,672,604 40,865 X 40,865 VARIAN INC COMMON 922206107 25,565,007 892,010 X 892,010 21,352 745 X 745 VERITAS SOFTWARE CO COMMON 923436109 13,108,068 745,200 X 745,200 6,948 395 X 395 VERITY INC COMMON 92343C106 5,252,324 377,865 X 377,865 1,298,844 93,442 X 93,442 VERISIGN INC COMMON 92343E102 9,534,859 1,090,945 X 1,090,945 8,609 985 X 985 VERIZON COMMUNICATIONS COMMON 92343V104 65,060,968 1,840,480 X 1,840,480 85,901 2,430 X 2,430 VIACOM INC - CLASS B COMMON 925524308 40,445,097 1,107,478 X 1,107,478 26,477 725 X 725 VISHAY INTERTECHNOLOGY INC COMMON 928298108 4,721,484 463,800 X 463,800 5,039 495 X 495 VIVENDI (EX-GEN EAUX) SP ADR COMMON 92851S204 14,566 1,087 X 1,087 175,942 13,130 X 13,130 VODAFONE GROUP PLC COMMON 92857W100 1,709,838 93,844 X 93,844 544,505 29,885 X 29,885 W HOLDING COMPANY INCORPORATED COMMON 929251106 4,224,140 230,073 X 230,073 773,727 42,142 X 42,142 WPP GROUP PLC COMMON 929309300 14,008 509 X 509 174,752 6,350 X 6,350 WACHOVIA CORP (NEW) COMMON 929903102 27,468,358 806,233 X 806,233 WAL MART STORES INC COMMON 931142103 82,763,080 1,590,680 X 1,590,680 292,721 5,626 X 5,626 WASHINGTON MUTUAL INCORPORATED COMMON 939322103 119,431,345 3,386,202 X 3,386,202 32,884,514 932,365 X 932,365 WASTE CONNECTIONS INC COMMON 941053100 8,539,647 247,526 X 247,526 2,139,035 62,001 X 62,001 WATERS CORP COMMON 941848103 12,145,628 573,990 X 573,990 Total 463,249,450 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 31 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE 11,109 525 X 525 WATSON PHARMACEUTICALS INC COMMON 942683103 2,176,594 75,655 X 75,655 1,413,902 49,145 X 49,145 WATSON WYATT AND COMPANY HOLDINGSCOMMON 942712100 9,756,158 485,381 X 485,381 2,279,420 113,404 X 113,404 WEBSENSE INC COMMON 947684106 22,552,396 1,535,221 X 1,535,221 2,031,524 138,293 X 138,293 WEIGHT WATCHERS INTERNATIONAL INCCOMMON 948626106 3,916,230 85,043 X 85,043 2,571,893 55,850 X 55,850 WELLS FARGO CO COMMON 949746101 12,952,621 287,900 X 287,900 WEST CORP. COMMON 952355105 9,835,039 555,966 X 555,966 2,083,351 117,770 X 117,770 WET SEAL INC COMMON 961840105 7,400,448 1,013,760 X 1,013,760 344,217 47,153 X 47,153 WEYERHAEUSER CO COMMON 962166104 40,296,536 842,495 X 842,495 119,336 2,495 X 2,495 WILLIAMS-SONOMA INC COMMON 969904101 18,178,017 833,854 X 833,854 2,385,552 109,429 X 109,429 WOLVERINE WORLD WIDE INC COMMON 978097103 10,091,021 602,449 X 602,449 3,600,094 214,931 X 214,931 WYETH COMMON 983024100 113,908,659 3,011,863 X 3,011,863 18,053,415 477,351 X 477,351 XTO ENERGY INC COMMON 98385X106 16,922,559 890,661 X 890,661 3,096,791 162,989 X 162,989 XCEL ENERGY, INC. COMMON 98389B100 372,002 29,040 X 29,040 YAHOO INC COMMON 984332106 10,013,938 416,900 X 416,900 10,449 435 X 435 YUKOS - ADR COMMON 98849W108 1,032,150 7,000 X 7,000 ZEBRA TECHNOLOGIES CORP COMMON 989207105 8,179,058 127,004 X 127,004 3,282,532 50,971 X 50,971 ZIMMER HOLDINGS INC COMMON 98956P102 5,757,792 118,400 X 118,400 6,079 125 X 125 Total 334,630,882 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 32 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE ADIDAS SALOMON AG COMMON D0066B102 1,254 15 X 15 188,936 2,260 X 2,260 DAIMLERCHRYSLER AG COMMON D1668R123 20,517 700 X 700 DEUTSCHE BANK AG - REG COMMON D18190898 181,073 4,300 X 4,300 DEUTSCHE BOERSE AG COMMON D1882G119 34,359 881 X 881 379,275 9,725 X 9,725 AMDOCS LTD COMMON G02602103 110,728,361 8,337,979 X 8,337,979 1,876,066 141,270 X 141,270 ARCH CAPITAL GROUP LTD COMMON G0450A105 7,516,323 221,399 X 221,399 3,217,911 94,786 X 94,786 BUNGE LIMITED COMMON G16962105 12,211,406 485,350 X 485,350 657,934 26,150 X 26,150 CHINA YUCHAI INTERNATIONAL LIMITECOMMON G21082105 284,000 40,000 X 40,000 EVEREST RE GROUP LTD COMMON G3223R108 11,442 200 X 200 FRESH DEL MONTE PRODUCE INC COMMON G36738105 48,648 3,190 X 3,190 MARVELL TECHNOLOGY GROUP INC COMMON G5876H105 1,321,938 62,385 X 62,385 1,377 65 X 65 MONTPELIER RE HOLDINGS LIMITED COMMON G62185106 10,744,200 381,000 X 381,000 225,600 8,000 X 8,000 PARTNERRE LTD COMMON G6852T105 18,493,005 368,020 X 368,020 49,245 980 X 980 SEAGATE TECHNOLOGY COMMON G7945J104 53,899,038 5,222,775 X 5,222,775 49,742 4,820 X 4,820 TRANSOCEAN INC COMMON G90078109 87,105,119 4,259,419 X 4,259,419 20,560,921 1,005,424 X 1,005,424 XL CAPITAL LTD - CLASS A COMMON G98255105 2,109,244 29,800 X 29,800 UBS AG COMMON H8920M855 35,783 838 X 838 429,349 10,055 X 10,055 CERAGON NETWORKS LTD COMMON M22013102 350,000 250,000 X 250,000 M- SYSTEMS FLASH DISK PIONEER COMMON M7061C100 2,385,768 387,300 X 387,300 Total 335,117,832 03/31/2003 FORM 13F J. & W. SELIGMAN & CO. INCORPORATED Page 33 ITEM 1: ITEM 2: ITEM 3: ITEM 4: ITEM 5: ITEM 6: ITEM 7: ITEM 8: SHARES OR INVST DISCRET V O T I N G A U T H O R I T Y TITLE CUSIP FAIR MARKET PRINCIPAL SOLE OTHR (S H A R E S) NAME OF ISSUER OF CLASS NUMBER VALUE AMOUNT SHRD MGRS (A)SOLE (B)SHARED (C)NONE ORBOTECH LTD COMMON M75253100 30,803,493 2,765,125 X 2,765,125 26,736 2,400 X 2,400 RADVISION LTD COMMON M81869105 2,251,520 351,800 X 351,800 TARO PHARMACEUTICAL INDUSTRY COMMON M8737E108 970,015 25,340 X 25,340 VERISITY LIMITED COMMON M97385112 19,521,487 2,112,715 X 2,112,715 1,334,607 144,438 X 144,438 OTP BANK COMMON USX607461 391,953 20,000 X 20,000 Total 55,299,811 Grand Total 12,562,946,807 Total Number of Securities 585