UNITED STATES
SECURITIES AND EXCHANGE COMMSSION
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: Fortaleza Asset Management, Inc.
Address: 200 W. Adams Street
Suite 2000
Chicago, IL 60606
13F File Number: 28-5120
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: Diana Gonzales
Title: Corporate Secretary
Phone: 312-621-6111
Signature, Place, and Date of Signing:
Diana Gonzales Chicago, Illinois February 11, 1999
Report Type (Check only one.):
[ X ] 13F HOLDINGS REPORT.
[ ] 13F NOTICE
[ ] 13F COMBINATION REPORT.
List of Other Managers Reporting for this Manager:
I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE ACT OF 1934.
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FORM 13F SUMMARY PAGE
Report summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Totals: 85
0
Form 13F Information Table Value Totals: $231,983
List of Other Included Managers:
No. 13F File Number Name
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Form 13F Information Table
Value Shares/ Sh/ Put/ Invstmt Other Voting Authority
Name of Issuer Title of ClCusip (x$1000)Prn Amt Prn Call Dscretn ManagersSole Shared None
Abgenix Inc. Com 00339B107 3312 25000 sh sole 15300 9700
Adaptive Broadband Com 00650M104 3018 40900 sh sole 27500 13400
Advanced Fibre Comm Com 00754A105 3221 72100 sh sole 44000 28100
Advent Software Com 007974108 2767 42950 sh sole 26400 16550
Affymetrix Inc. Com 00826T108 3945 23250 sh sole 13450 9800
Allaire Corporation Com 016714107 1755 12000 sh sole 7200 4800
American Eagle Outfitter Com 02553E106 2326 51700 sh sole 31000 20700
Ann Taylor Stores Com 036115103 1394 40500 sh sole 23900 16600
Art Tech Group Com 04289L107 6188 48300 sh sole 29400 18900
Asyst Technology Com 04648X107 4694 71600 sh sole 42100 29500
BEA Systems Com 073325102 6979 99800 sh sole 61000 38800
Bindview Development Com 090327107 3269 65800 sh sole 34300 31500
Biovail Corporation Com 09067K106 3525 37600 sh sole 21300 16300
Braun's Fashions Com 105658108 2545 121200 sh sole 77600 43600
Broadvision Com 111412102 3758 22100 sh sole 13350 8750
Celgene Corp. Com 151020104 2352 33600 sh sole 21600 12000
Central Newspaper Com 154647101 2035 51700 sh sole 31100 20600
Cheesecake Factory Com 163072101 3398 97100 sh sole 58400 38700
Chico's Fashions Com 168615102 4273 113575 sh sole 68575 45000
Coldwater Creek Com 193068103 2146 104700 sh sole 63100 41600
Comdisco, Inc. Com 200336105 558 15000 sh sole 15000 0
CommTouch Software Com M25596103 9 200 sh sole 200 0
Cost Plus World Market Com 221485105 3180 89272 sh sole 53522 35750
Covad Com 222814204 1929 34500 sh sole 21000 13500
Cypress Semi Com 232806109 2340 72300 sh sole 48500 23800
Cytyc Corporation Com 232946103 2741 44900 sh sole 27400 17500
DeVry, Inc. Com 251893103 3 200 sh sole 200 0
Digimarc Corp. Com 253807101 2500 50000 sh sole 30200 19800
Digital Insight Com 25385P106 1116 30700 sh sole 18600 12100
Digital Lightwave Com 253855100 5132 80200 sh sole 48950 31250
Documentum Com 256159104 3376 56400 sh sole 32900 23500
Dollar Tree Stores Com 256747106 2823 58300 sh sole 30100 28200
Doral Financial Com 25811P100 1263 102600 sh sole 55100 47500
Dusa Pharmaceuticals Com 266898105 2613 91700 sh sole 58500 33200
ESoft, Inc. Com 296904105 1463 50250 sh sole 30750 19500
Eclipsys Corp. Com 278856109 2618 102200 sh sole 61500 40700
Fossil Inc. Com 349882100 2341 101275 sh sole 64300 36975
Global Industries Ltd. Com 379336100 2020 234300 sh sole 144900 89400
Greater Bay Bancorp. Com 391648102 3352 78200 sh sole 50700 27500
Healtheon WebMd Com 422209106 1505 40150 sh sole 24150 16000
Hispanic Broadcasing Cor CL A 422799106 9 100 sh sole 100 0
IDEC Pharmaceuticals Cor Com 449370105 510 5200 sh sole 3500 1700
ISS Group Com 450306105 2866 40300 sh sole 24500 15800
Incyte Pharmaceuticals Com 45337C102 3540 59000 sh sole 36000 23000
Integrated Device Com 458118106 2175 75000 sh sole 46000 29000
Intervoice-Brite Com 461142101 4573 196700 sh sole 120100 76600
JDA Software Com 46612K108 1776 108500 sh sole 71500 37000
King Pharmaceuticals Com 495582108 2363 42150 sh sole 25150 17000
Kulicke and Soffa Ind. Com 501242101 3242 76175 sh sole 46175 30000
LJL Bio Systems Com 501873103 787 100000 sh sole 70000 30000
Lam Research Com 512807108 11 100 sh sole 100 0
Legato Systems Com 524651106 5085 73900 sh sole 44400 29500
MacroVision Com 555904101 5764 77900 sh sole 46900 31000
Macromedia Com 556100105 2522 34500 sh sole 20800 13700
Management Network Grp. Com 561693102 3 100 sh sole 100 0
Marine Drilling Com 568240204 3531 157400 sh sole 95300 62100
Mercury Interactive Cor Com 589405109 3907 36200 sh sole 21600 4600
MiniMed Inc. Com 60365K108 2534 34600 sh sole 20800 13800
Nanometrics Com 630077105 2169 107800 sh sole 66800 41000
NetPerceptions Com 64107U101 2868 68300 sh sole 44500 23800
Novellus Systems Com 670008101 12 100 sh sole 100 0
Open Market Inc. Com 68370M100 3804 84300 sh sole 47800 36500
PFSweb, Inc. Com 717098107 2482 66200 sh sole 40700 25500
Patterson Dental Com 703412106 2129 49950 sh sole 27950 22000
Peregrine Systems Com 71366Q101 5236 62200 sh sole 37700 24500
Pharmacopeia, Inc. Com 71713B104 2368 104700 sh sole 63800 40900
Photronics Com 719405102 2141 74800 sh sole 48000 26800
Pilot Network Services Com 721596104 1320 55000 sh sole 32000 23000
Pinnacle Systems Com 723481107 2042 50200 sh sole 30700 19500
Power Wave Com 739363109 4138 70900 sh sole 44400 26500
QLT Phototherapeutics Com 746927102 2755 46900 sh sole 29000 17900
Queens County Bancorp. Com 748242104 2978 109800 sh sole 65700 44100
RSA Security Inc. Com 749719100 4743 61200 sh sole 36700 24500
Rehabcare Com 759148109 1681 79150 sh sole 46650 32500
Sagent Tech. Com 786693101 1511 50500 sh sole 30500 20000
Spanish Broadcasting CL A 846425882 2700 67100 sh sole 40450 26650
Talbots Com 874161102 2435 54575 sh sole 32875 21700
Veeco Instruments Com 922417100 3406 72775 sh sole 43975 28800
Ventana Medical Systems Com 92276H106 1691 68000 sh sole 41000 27000
Vertex Com 92532F100 2626 75050 sh sole 45250 29800
VerticalNet Inc. Com 92532L107 6191 37750 sh sole 22950 14800
Visual Networks Com 928444108 1585 20000 sh sole 10800 9200
Wesley Jessen Com 951018100 1899 50150 sh sole 30200 19950
Wind River Systems, Inc. Com 973149107 2937 80200 sh sole 50000 30200
Zales Com 988858106 3843 79450 sh sole 47250 32200
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