UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F
INFORMATION REQUIRED OF INSTITUTIONAL INVESTMENT MANAGERS PURSUANT
TO SECTION 13(f) OF THE SECURITIES EXCHANGE ACT OF 1934 AND RULES
THEREUNDER
Report for the Calendar Quarter Ended September 30, 1999.
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(Please read instructions before preparing form.)
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If amended report check here: |_|
Gilder Gagnon Howe & Co. LLC
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Name of Institutional Investment Manager
1775 Broadway, 26th Floor, New York, NY 10019
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Business Address
(Street) (City) (State) (Zip)
Walter Weadock, (212)765-2500, Member
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Name, Phone No., and Title of Person Duly Authorized to Submit This Report
ATTENTION
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Intentional misstatements or omissions of facts constitute
Federal Criminal Violations.
See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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The institutional investment manager submitting this Form and its attachments
and the person by whom it is signed represent hereby that all information
contained therein is true, correct and complete. It is understood that all
required items, statements and schedules are considered integral parts of this
Form and that the submission of any amendment represents that all unamended
items, statements and schedules remain true, correct and complete as previously
submitted.
Pursuant to the requirements of Securities Exchange Act of 1934, the
undersigned institutional investment manager has caused this report to be signed
on its behalf in the City of New York and State of New York on the 17th day of
May 1999.
Gilder Gagnon Howe & Co. LLC
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(Name of Institutional Investment Manager)
/s/ Walter Weadock
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( Manual Signature of Person Duly Authorized
to Submit this Report)
Name and 13F file numbers of ALL Institutional Investment Managers with respect
to which this schedule is filled (other than the one filing this report): (List
<PAGE>
in alphabetical order.) 13F File Numbers will be assigned to Institutional
Investment Managers after they file their first report.
Name: 13F File No.: Name: 13F File No.:
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1. 6.
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2. 7.
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3. 8.
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4. 9.
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5. 10.
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<TABLE>
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PAGE 1 NAME OF REPORTING MANAGER: GILDER, GAGNON, HOWE & CO. FOR THE QUARTER END: 09/30/99
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(ITEM 1:) (ITEM 2) (ITEM 3) (ITEM 4) (ITEM 5) (ITEM 6) (ITEM 7) (ITEM 8)
INVESTMENT DISCRETION VOTING AUTHORITY
--------------------------------------------
TITLE FAIR SHARES OR SOLE SHARE SHARED SOLE SHARED NONE
OF MARKET PRINCIPAL OTHER
NAME OF ISSUER CLASS CUSIP NO. VALUE AMOUNT (A) (B) (C) MGRS (A) (B) (C)
- -----------------------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
3DFX INTERACTIVE INC COM 88553X103 22,999,886 2,787,865 X 0 0 2,787,865
ACT NETWORKS INC COM 000975102 8,750,428 992,900 X 0 0 992,900
ACTUATE SOFTWARE CORP COM 00508B102000 19,044,186 562,190 X 22,525 0 539,665
AES CORP COM 00130H105 359,900 6,100 X 6,000 0 100
AETNA INC COM 008117103000 985,000 20,000 X 0 0 20,000
AIRPORT SYSTEMS INTERNATIONAL, INC COM 00949N103 1,880,316 791,712 X 235,825 0 555,887
ALEXION PHARMACEUTICALS INC COM 015351109 4,537,321 307,615 X 146,500 0 161,115
ALLAIRE CORP COM 016714107 16,347,520 291,920 X 23,660 0 268,260
ALLEGHANY CORP COM 017175100 23,364 132 X 0 0 132
ALLEGIANCE TELECOM INC COM 01747T102 15,788 300 X 0 0 300
ALTEON WEBSYSTEMS INC COM 02145A109000 35,339,300 375,950 X 525 0 375,425
AMAZON.COM INC COM 023135106 4,809,324 60,305 X 6,870 0 53,435
AMDOCS LIMITED COM G02602103 3,924,795 186,895 X 44,075 0 142,820
AMERICA ONLINE INC COM 02364J104 912,600 8,775 X 370 0 8,405
AMFM INC COM 001693100000 13,036,990 214,160 X 20,300 0 193,860
AMISTAR CORP COM 031535107 16,250 10,000 X 10,000 0 0
AON CORP COM 037389103000 106,841 3,614 X 0 0 3,614
APOLLO GROUP INC COM 037604105 128,863 6,100 X 6,000 0 100
ARCH COMMUNICATIONS GROUP INC COM 039381504000 435,660 108,915 X 458 0 108,457
ARIBA INC COM 04033V104000 31,927,275 220,950 X 15,555 0 205,395
ARONEX PHARMACEUTICALS INC COM 042666206 2,069,638 534,100 X 0 0 534,100
ART TECHNOLOGY GROUP INC COM 04289L107000 2,839,500 74,600 X 4,450 0 70,150
ASKJ COM 045174109000 5,719,238 165,775 X 0 0 165,775
ASTEC INDUSTRIES INC COM 046224101 15,019,019 622,550 X 0 0 622,550
ATLANTIC COAST AIRLINES HLDGS, INC COM 048396105 3,167,044 178,425 X 6,650 0 171,775
AUTONATION INC COM 05329W102 2,211,088 176,000 X 0 0 176,000
AUTOZONE INC COM 053332102 28,063 1,000 X 1,000 0 0
AWARE INC COM 05453N100 45,053,999 1,570,485 X 197,235 0 1,373,250
AZURIX CORP COM 05501M104 5,423,673 315,550 X 29,825 0 285,725
BACKWEB TECHNOLOGIES LTD COM M15633106000 2,572,610 151,330 X 32,650 0 118,680
BANK OF NEW YORK CO INC COM 064057102000 60,189 1,800 X 1,800 0 0
BARNESANDNOBLE.COM INC COM 067846105000 15,455,711 800,275 X 15,075 0 785,200
BENIHANA INC CL A 082047200 2,401,197 146,638 X 3,375 0 143,263
BERKSHIRE HATHAWAY INC CL B 084670207 621,760 335 X 335 0 0
Page Total: 268,224,333
<PAGE>
PAGE 2 NAME OF REPORTING MANAGER: GILDER, GAGNON, HOWE & CO. FOR THE QUARTER END: 09/30/99
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(ITEM 1:) (ITEM 2) (ITEM 3) (ITEM 4) (ITEM 5) (ITEM 6) (ITEM 7) (ITEM 8)
INVESTMENT DISCRETION VOTING AUTHORITY
--------------------------------------------
TITLE FAIR SHARES OR SOLE SHARE SHARED SOLE SHARED NONE
OF MARKET PRINCIPAL OTHER
NAME OF ISSUER CLASS CUSIP NO. VALUE AMOUNT (A) (B) (C) MGRS (A) (B) (C)
- -----------------------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
BIG CITY RADIO INC CL A 089098107 2,947,406 785,975 X 0 0 785,975
BROADCOM CORP CL A 111320107 27,794,455 254,995 X 950 0 254,045
BROCADE COMMUNICATIONS SYS INC COM 111621108000 41,317,500 196,750 X 5,475 0 191,275
CABLETRON SYSTEMS INC COM 126920107 85,903,191 5,475,750 X 794,675 0 4,681,075
CADIZ INC COM COM 127537108 18,476,622 1,932,100 X 167,000 0 1,765,100
CAREERBUILDER INC COM 141684100 2,285,075 325,000 X 0 0 325,000
CAREINSITE INC COM COM 14170M106000 932,259 18,415 X 0 0 18,415
CAREMARK RX INC COM 141705103000 3,152,391 560,425 X 0 0 560,425
CAREY INTERNATIONAL INC COM 141750109 39,549,825 1,581,993 X 121,325 0 1,460,668
CARLISLE HOLDINGS LTD COM P21277101000 608,228 58,800 X 0 0 58,800
CELGENE CORP COM 151020104 8,152,729 301,250 X 64,350 0 236,900
CERI COM 14008M104 580,250 105,500 X 625 0 104,875
CHARTWELL RE CORP COM 16139W109000 404,986 28,050 X 0 0 28,050
CHECKFREE HOLDINGS CORP COM 162816102000 2,985,264 72,590 X 2,650 0 69,940
CHICAGO TITLE CORP COM 168228104000 15,576 390 X 0 0 390
CHICOS FAS INC COM 168615102 5,078,964 186,384 X 12,250 0 174,134
CHILDTIME LEARNING CENTERS INC COM 168820108 5,246,791 411,513 X 122,975 0 288,538
CISCO SYSTEMS INC COM 17275R102 1,765,497 25,750 X 1,400 0 24,350
CITRIX SYSTEMS INC COM 177376100 12,331,236 199,090 X 30,610 0 168,480
CLEAR CHANNEL COMMUNICATIONS, INC COM 184502102 10,620,659 132,966 X 40,686 0 92,280
CNET INC COM 125945105 455,699,384 8,137,489 X 2,490,085 0 5,647,404
COINSTAR INC COM 19259P300 7,534,634 758,164 X 89,148 0 669,016
COMDISCO INC COM 200336105000 23,659 1,225 X 155 0 1,070
COMERICA INC COM 200340107000 22,782 450 X 0 0 450
CONEXANT SYSTEMS INC COM 207142100 10,872,970 149,650 X 14,195 0 135,455
CORE INC COM 21867P102 14,138,279 1,795,337 X 338,965 0 1,456,372
CORRECTIONAL SERVICES CORP COM 219921103 13,750,608 2,784,656 X 307,628 0 2,477,028
COSTCO WHOLESALE CORP COM 22160K105000 8,386,776 116,483 X 0 0 116,483
COURIER CORP COM 222660102000 1,957,800 81,575 X 11,325 0 70,250
COVAD COMMUNICATIONS GROUP INC COM 222814204 67,515,946 1,548,744 X 36,651 0 1,512,093
CYBERONICS INC COM 23251P102000 543,400 30,400 X 2,050 0 28,350
DAISYTEK INTERNATIONAL CORP COM 234053106 1,176,623 83,668 X 2,024 0 81,644
DATA RESEARCH ASSOCIATES INC COM 237853106 743,817 86,864 X 2,549 0 84,315
DATA TRANSMISSION NETWORK CORP COM 238017107 3,381,094 135,580 X 14,200 0 121,380
Page Total: 855,896,673
<PAGE>
PAGE 3 NAME OF REPORTING MANAGER: GILDER, GAGNON, HOWE & CO. FOR THE QUARTER END: 09/30/99
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(ITEM 1:) (ITEM 2) (ITEM 3) (ITEM 4) (ITEM 5) (ITEM 6) (ITEM 7) (ITEM 8)
INVESTMENT DISCRETION VOTING AUTHORITY
--------------------------------------------
TITLE FAIR SHARES OR SOLE SHARE SHARED SOLE SHARED NONE
OF MARKET PRINCIPAL OTHER
NAME OF ISSUER CLASS CUSIP NO. VALUE AMOUNT (A) (B) (C) MGRS (A) (B) (C)
- -----------------------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
DAVIDS BRIDAL INC COM 238576102 15,451,999 2,077,440 X 5,400 0 2,072,040
DELIA*S INC COM 246885107 7,444,127 1,185,177 X 120,000 0 1,065,177
DIAMOND TECHNOLOGY PARTNERS INC CL A 252762109000 100,969 2,250 X 0 0 2,250
DISPATCH MANAGEMENT SERVICES, CORP COM 254927106000 6,180,108 2,718,175 X 578,660 0 2,139,515
DOLLAR TREE STORES INC COM 256747106 132,339,037 3,313,614 X 229,554 0 3,084,060
DOUBLECLICK INC COM 258609304 239,093,643 2,007,082 X 264,083 0 1,742,999
DRKOOP.COM INC COM 262098106 9,853,921 694,525 X 1,225 0 693,300
DSP COMMUNICATIONS INC COM 23332K106 119,065,172 6,266,588 X 1,756,600 0 4,509,988
DSP GROUP INC COM 23332B106 12,153,900 304,800 X 0 0 304,800
EARTHLINK NETWORK INC COM 270322100 132,384,501 3,083,158 X 352,180 0 2,730,978
EARTHSHELL CORP COM 27032B100 9,923,003 2,560,775 X 195,450 0 2,365,325
ECHOSTAR COMMUNICATIONS CORP CL A 278762109 122,965,797 1,354,055 X 13,540 0 1,340,515
EFFICIENT NETWORKS INC COM 282056100000 12,204,722 335,525 X 1,675 0 333,850
EGAIN COMMUNICATIONS CORP COM 28225C103000 4,653,675 251,550 X 0 0 251,550
ELECTRO RENT CORP COM 285218103 370,075 29,606 X 0 0 29,606
ELECTRONICS FOR IMAGING INC COM 286082102 97,860,380 1,903,675 X 305,775 0 1,597,900
ELLETT BROTHERS INC COM 288398100000 3,239,125 647,825 X 104,500 0 543,325
ENRON CORP COM 293561106000 12,371,494 299,915 X 22,500 0 277,415
E-TEK DYNAMICS INC COM 269240107 13,323,529 245,595 X 40,325 0 205,270
ETOYS INC COM 297862104 82,260,144 1,235,825 X 184,430 0 1,051,395
EXODUS COMMUNICATIONS INC COM 302088109 163,398,529 2,267,440 X 100,390 0 2,167,050
EXTREME NETWORKS INC COM 30226D106 25,350,525 400,400 X 12,825 0 387,575
FASTENAL CO COM 311900104 6,631,289 140,717 X 6,475 0 134,242
FIRST AMERICAN FINANCIAL CORP COM 318522307000 34,907,025 2,609,871 X 87,744 0 2,522,127
FOUNDRY NETWORKS INC COM 35063R100000 46,614,330 369,955 X 23,350 0 346,605
GARDEN COM INC COM 365199108000 8,965,625 475,000 X 0 0 475,000
GENERAL CIGAR HOLDINGS INC CL A 36933P100 9,304,484 1,378,442 X 25,004 0 1,353,438
GENERAL ELECTRIC CO COM 369604103000 281,588 2,375 X 0 0 2,375
GILLETTE CO COM 375766102000 64,483 1,900 X 1,800 0 100
GIORDANO INTERNATIONAL LTD COM Y27092108000 5,052,908 6,388,000 X 0 0 6,388,000
GLOBAL MARINE INC COM 379352404 4,061,830 247,100 X 16,250 0 230,850
GO2NET INC COM 383486107000 191,013 2,950 X 475 0 2,475
GOTO.COM INC COM 38348T107000 140,349,690 2,692,560 X 245,075 0 2,447,485
HALLIBURTON CO COM 406216101000 3,874,910 94,510 X 8,915 0 85,595
Page Total: 1,482,287,544
<PAGE>
PAGE 4 NAME OF REPORTING MANAGER: GILDER, GAGNON, HOWE & CO. FOR THE QUARTER END: 09/30/99
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(ITEM 1:) (ITEM 2) (ITEM 3) (ITEM 4) (ITEM 5) (ITEM 6) (ITEM 7) (ITEM 8)
INVESTMENT DISCRETION VOTING AUTHORITY
--------------------------------------------
TITLE FAIR SHARES OR SOLE SHARE SHARED SOLE SHARED NONE
OF MARKET PRINCIPAL OTHER
NAME OF ISSUER CLASS CUSIP NO. VALUE AMOUNT (A) (B) (C) MGRS (A) (B) (C)
- -----------------------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
HCC INSURANCE HOLDINGS INC COM 404132102000 2,873,863 170,931 X 21,625 0 149,306
HEADHUNTER NET INC COM 422077107000 4,709,375 376,750 X 0 0 376,750
HEALTH SYSTEMS DESIGN CORP COM 421964107000 70,000 20,000 X 0 0 20,000
HIGH SPEED ACCESS COM 42979U102 55,188,259 2,405,985 X 519,820 0 1,886,165
HOLLINGER INTERNATIONAL INC CL A 435569108000 19,000 1,600 X 0 0 1,600
HOLLYWOOD PARK INC COM 436255103 5,959,781 387,628 X 0 0 387,628
HOMESTORE COM INC COM 437852106000 6,307,394 151,300 X 375 0 150,925
HORACE MANN EDUCATORS CORP COM 440327104000 7,451,568 288,675 X 34,755 0 253,920
I2 TECHNOLOGIES INC COM 465754109000 3,969,600 102,275 X 3,675 0 98,600
IMPATH INC COM 45255G101 9,925,800 340,800 X 77,745 0 263,055
INFOSPACE COM INC COM 45678T102000 20,571,753 500,225 X 0 0 500,225
INKTOMI CORP COM 457277101 33,806,731 281,650 X 16,550 0 265,100
INSURANCE AUTO AUCTIONS INC COM 457875102 2,008,125 135,000 X 0 0 135,000
INTEGRAL SYSTEMS INC COM 45810H107 3,288,914 114,397 X 1,500 0 112,897
INTERNATIONAL BUSINESS MACHINES CORP COM 459200101000 365,096 3,008 X 0 0 3,008
ION NETWORKS INC COM 46205P100 1,353,750 210,275 X 3,875 0 206,400
IVILLAGE INC COM 46588H105 76,943,524 2,182,795 X 52,855 0 2,129,940
JDS UNIPHASE CORP COM COM 46612J101000 74,873,020 657,860 X 33,260 0 624,600
JUNIPER NETWORKS COM 48203R104000 4,731,465 25,855 X 6,655 0 19,200
KANA COMMUNICATIONS INC COM 483600102000 15,486,188 310,500 X 0 0 310,500
KITTY HAWK INC COM 498326107 19,617,947 1,937,575 X 243,850 0 1,693,725
KLLM TRANSPORT SERVICES INC COM 482498102 4,647,557 953,345 X 355,555 0 597,790
LAMAR ADVERTISING CO CL A 512815101 5,211,360 105,280 X 26,100 0 79,180
LANDEC CORP COM 514766104 2,747,651 536,127 X 30,525 0 505,602
LASER PACIFIC MEDIA CORP COM 517923108 1,498,097 164,175 X 0 0 164,175
LEVEL 3 COMMUNICATIONS INC COM 52729N100 57,530,194 1,101,710 X 16,645 0 1,085,065
LI & FUNG LTD COM G5485F102000 2,518,159 833,000 X 0 0 833,000
LUMENON INNOVATIVE LIGHTWAVE COM 55024L109000 4,741,68 49,750 X 0 0 49,750
LYCOS INC COM 550818108 2,267,254 45,232 X 112 0 45,120
MACROMEDIA INC COM 556100105000 20,360,042 498,105 X 7,525 0 490,580
MAPQUEST.COM INC COM 565644101 5,256,766 442,675 X 27,950 0 414,725
MARINE DRILLING COMPANIES INC COM 568240204 3,822,318 241,720 X 12,800 0 228,920
MARTIN MARIETTA MATERIALS INC COM 573284106000 28,509,741 713,850 X 1,800 0 712,050
MEDIA METRIX INC COM 58440X103 108,606,014 1,554,290 X 55,595 0 1,498,695
Page Total: 592,970,472
<PAGE>
PAGE 5 NAME OF REPORTING MANAGER: GILDER, GAGNON, HOWE & CO. FOR THE QUARTER END: 09/30/99
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(ITEM 1:) (ITEM 2) (ITEM 3) (ITEM 4) (ITEM 5) (ITEM 6) (ITEM 7) (ITEM 8)
INVESTMENT DISCRETION VOTING AUTHORITY
--------------------------------------------
TITLE FAIR SHARES OR SOLE SHARE SHARED SOLE SHARED NONE
OF MARKET PRINCIPAL OTHER
NAME OF ISSUER CLASS CUSIP NO. VALUE AMOUNT (A) (B) (C) MGRS (A) (B) (C)
- -----------------------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
MEDICAL MANAGER CORP COM 58461U103000 4,793,263 96,347 X 5,087 0 91,260
MEMBERWORKS INC COM 586002107000 1,579,071 47,313 X 0 0 47,313
MERCK & CO INC COM 589331107000 61,573 950 X 0 0 950
MERCURY INTERACTIVE CORP COM 589405109 38,202,573 591,710 X 70,110 0 521,600
MEREDITH CORP COM 589433101000 65,364 1,800 X 1,800 0 0
MERIT MEDICAL SYSTEMS INC COM 589889104 1,371,238 226,165 X 2,750 0 223,415
METROMEDIA FIBER NETWORK INC CL A 591689104 193,934,136 7,915,679 X 1,217,800 0 6,697,879
MICROGRAFX INC COM 595077108 2,337,892 593,675 X 0 0 593,675
MIDWAY GAMES INC COM 598148104000 11,201,794 711,225 X 0 0 711,225
MOBIL CORP COM 607059102000 14,105 140 X 0 0 140
MP3.COM INC COM 62473M109000 67,930,933 1,808,455 X 176,975 0 1,631,480
MPATH INTERACTIVE INC COM 62473C101000 130,525 11,350 X 1,925 0 9,425
NATIONAL INFORMATION CONSORTIUM INC COM 636491102000 8,409,967 340,650 X 7,775 0 332,875
NATIONAL INSTRUMENTS CORP COM 636518102 14,040,404 397,250 X 31,973 0 365,277
NAVIGATORS GROUP INC COM 638904102 814,538 60,900 X 0 0 60,900
NEON SYSTEM INC COM 640509105 4,341,597 161,170 X 36,700 0 124,470
NETWORK ACCESS SOLUTIONS CORP COM 64120S109000 29,813 2,250 X 0 0 2,250
NETWORKS INC COM 315616102 45,566,460 670,095 X 30,870 0 639,225
NEWGEN RESULTS CORPORATION COM 651359101000 6,435,009 591,725 X 83,775 0 507,950
NOKIA CORP ADR 654902204 18,907,882 210,525 X 0 0 210,525
NORTHEAST OPTIC NETWORK INC COM 664334109 21,344,794 565,425 X 13,075 0 552,350
NORTHLAND CRANBERRIES INC CL A 666499108000 19,057,373 2,917,980 X 216,525 0 2,701,455
NTL INC COM 629407107 7,260,382 75,555 X 6,675 0 68,880
NTRO COM 64114R109000 13,666,284 499,225 X 0 0 499,225
NUCENTRIX BROADBAND NETWORKS INC COM 670198100 7,320,954 301,895 X 92,450 0 209,445
NYMAGIC INC COM 629484106000 136,500 10,500 X 0 0 10,500
OUTDOOR SYSTEMS INC COM 690057104 10,889,915 304,613 X 93,347 0 211,266
OVERLAND DATA INC COM 690213103 1,010,441 194,765 X 2,325 0 192,440
PACKAGED ICED INC COM 695148106 1,781,578 527,875 X 2,400 0 525,475
PARADYNE NETWORKS INC COM 69911G107000 13,300 475 X 0 0 475
PARKPLACE ENTERTAINMENT CORP COM 700690100 51,409,375 4,112,750 X 200,000 0 3,912,750
PAULA FINANCIAL COM 703588103000 1,605,248 259,413 X 18,100 0 241,313
PEAPOD INC COM 704718105 1,184,314 117,690 X 0 0 117,690
PEPSICO INC COM 713448108000 145,200 4,800 X 4,800 0 0
Page Total: 556,993,794
<PAGE>
PAGE 6 NAME OF REPORTING MANAGER: GILDER, GAGNON, HOWE & CO. FOR THE QUARTER END: 09/30/99
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(ITEM 1:) (ITEM 2) (ITEM 3) (ITEM 4) (ITEM 5) (ITEM 6) (ITEM 7) (ITEM 8)
INVESTMENT DISCRETION VOTING AUTHORITY
--------------------------------------------
TITLE FAIR SHARES OR SOLE SHARE SHARED SOLE SHARED NONE
OF MARKET PRINCIPAL OTHER
NAME OF ISSUER CLASS CUSIP NO. VALUE AMOUNT (A) (B) (C) MGRS (A) (B) (C)
- -----------------------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
PF CHANGS CHINA BISTRO INC COM 69333Y108 4,580,716 211,825 X 0 0 211,825
PHONE.COM INC COM 71920Q100000 50,979,750 336,500 X 1,350 0 335,150
PHYCOR INC COM 71940F100 3,254,672 743,925 X 299,575 0 444,350
PLX TECHNOLOGY INC COM 693417107000 6,312,668 261,665 X 214,740 0 46,925
PONTOTOC PRODUCTION INC COM 732763107 4,043,617 509,400 X 143,075 0 366,325
PORTAL SOFTWARE INC COM 736126103 13,500,500 348,400 X 700 0 347,700
POWER INTEGRATIONS INC COM 739276103 103,737 1,498 X 0 0 1,498
PREMIER PARKS INC COM 740540208 127,868,746 4,409,274 X 1,184,960 0 3,224,314
PREMIER RESEARCH WORLDWIDE LTD COM 740568100 7,991,436 1,389,815 X 249,350 0 1,140,465
PRISON REALTY CORP COM 74264N105000 12,417,572 1,155,123 X 487,612 0 667,511
PROGENICS PHARMACEUTICALS INC COM 743187106000 473,850 24,300 X 600 0 23,700
PURCHASEPRO.COM INC COM 746144104000 13,958,206 401,675 X 800 0 400,875
QLT PHOTOTHERAPEUTICS INC COM 746927102000 4,747,182 62,105 X 5,705 0 56,400
QUALCOMM INC COM 747525103 132,851,572 702,220 X 57,660 0 644,560
QWEST COMMUNICATIONS, INTERNATIONAL INC COM 749121109 7,7178,676 2,610,651 X 92,015 0 2,518,636
REALNETWORKS INC, COM 75605L104 158,743,862 1,518,165 X 125,535 0 1,392,630
REDBACK NETWORKS INC COM 757209101 1,293,300 11,975 X 500 0 11,475
RENT A CENTER INC COM 76009N100 8,958,569 480,997 X 29,312 0 451,685
RES-CARE INC COM 760943100 7,245,417 426,201 X 5,538 0 420,663
RHYTHMS NETCONNECTIONS INC COM 762430205 9,318,795 270,110 X 4,515 0 265,595
ROWAN COMPANIES INC COM 779382100000 1,209,813 74,450 X 3,875 0 70,575
SAGENT TECHNOLOGY INC COM 786693101 2,456,240 260,250 X 1,300 0 258,950
SANTA CRUZ OPERATION INC COM 801833104 14,575,582 1,220,940 X 226,870 0 994,070
SCP POOL CORP COM 784028102 8,617,897 366,719 X 17,575 0 349,144
SDL INC COM 784076101 44,072,665 577,525 X 750 0 576,775
SEACHANGE INTERNATIONAL INC COM 811699107 5,029,200 316,800 X 12,375 0 304,425
SEACOR SMIT INC COM 811904101 209,100 4,080 X 4,080 0 0
SFX ENTERTAINMENT INC COM 784178105 7,197,970 235,999 X 75,518 0 160,481
SIEBEL SYSTEMS INC COM 826170102 18,838,752 282,758 X 58,850 0 223,908
SOFTWARE COM INC COM 83402P104000 15,011,609 350,125 X 15,000 0 335,125
SOLECTRON CORP COM 834182107 223,512,089 3,112,421 X 489,460 0 2,622,961
SOTHEBYS HOLDINGS INC CL A 835898107000 51,626 2,000 X 2,000 0 0
SPECTRASITE HOLDINGS INC COM 84760T100000 10,838,384 912,706 X 122,084 0 790,622
SPORTS CLUB CO INC COM 84917P100 217,875 43,575 X 1,675 0 41,900
Page Total: 997,661,843
<PAGE>
PAGE 7 NAME OF REPORTING MANAGER: GILDER, GAGNON, HOWE & CO. FOR THE QUARTER END: 09/30/99
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(ITEM 1:) (ITEM 2) (ITEM 3) (ITEM 4) (ITEM 5) (ITEM 6) (ITEM 7) (ITEM 8)
INVESTMENT DISCRETION VOTING AUTHORITY
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TITLE FAIR SHARES OR SOLE SHARE SHARED SOLE SHARED NONE
OF MARKET PRINCIPAL OTHER
NAME OF ISSUER CLASS CUSIP NO. VALUE AMOUNT (A) (B) (C) MGRS (A) (B) (C)
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<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
SRNA COM 817492101000 2,262,641 132,125 X 35,400 0 96,725
STERICYCLE INC COM 858912108000 1,492,301 101,600 X 38,100 0 63,500
STILLWATER MINING CO COM 86074Q102 51,170 1,904 X 255 0 1,649
SUMMIT TECHNOLOGY INC COM 86627E101 11,604,948 633,700 X 0 0 633,700
TANDY CORP COM 875382103000 13,948,265 269,855 X 14,750 0 255,105
TCI SATELLITE ENTERTAINMENT INC CL A 872298104 3,201,600 800,400 X 14,800 0 785,600
TELIGENT INC CL A 87959Y103 12,875,403 259,125 X 1,400 0 257,725
TEMPLE INLAND INC COM 879868107000 151,250 2,500 X 0 0 2,500
TEXAS INSTRUMENTS INC COM 882508104000 185,424,400 2,254,400 X 248,360 0 2,006,040
TIME WARNER INC (HOLDING CO) COM 887315109000 1,093,500 18,000 X 0 0 18,000
TRENWICK GROUP INC COM 895290104000 889,400 53,698 X 0 0 53,698
TSI INTERNATIONAL SOFTWARE LTD COM 872879101 27,430,400 1,011,259 X 36,075 0 975,184
TWEETER HOME ENTMT GROUP INC COM 901167106 17,203,227 460,287 X 14,950 0 445,337
U S AGGREGATES INC COM 90334D109000 94,779 6,800 X 6,600 0 200
U S FRANCHISE SYSTEMS INC CL A 902956309 19,665,837 1,135,900 X 14,625 0 1,121,275
UNILEVER N V COM 904784709 43,737 642 X 0 0 642
UNITEDGLOBALCOM CL A 913247508000 7,186,136 100,330 X 8,950 0 91,380
VALLEY NATIONAL GASES INC COM 919792101000 18,750 5,000 X 5,000 0 0
VALUE CITY DEPARTMENT STORES, INC COM 920387107 6,539,250 435,950 X 121,700 0 314,250
VERISIGN INC COM 92343E102 133,376,340 1,252,360 X 32,620 0 1,219,740
VERTICALNET INC COM 92532L107 29,080,150 785,950 X 53,220 0 732,730
VIGNETTE CORP COM 926734104 28,964,525 320,050 X 21,975 0 298,075
VULCAN MATERIALS CO COM 929160109000 141,007 3,850 X 3,800 0 50
WALT DISNEY CO HOLDING CO COM 254687106 115,299 4,456 X 0 0 4,456
WHITMAN CORP COM 96647R107000 44,175 3,100 X 3,000 0 100
WINK COMMUNICATIONS INC COM 974168106000 15,616,931 357,465 X 1,060 0 356,405
YAHOO INC COM 984332106 242,597,295 1,350,788 X 351,689 0 999,099
YOUNG & RUBICAM INC COM 987425105000 1,977,800 44,950 X 8,350 0 36,600
ZANY BRAINY INC COM 98906Q101000 1,211,881 136,550 X 39,450 0 97,100
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5,518,337,054
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