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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F COVER PAGE
Report for the Calendar Year or Quarter Ended: 03/31/00
Check here if Amendment / /; Amendment Number:
This Amendment (Check only one): / / is a restatement
/ / adds new holdings entries.
Institutional Investment Manager Filing this Report:
RONN C. LOWENTHAL d/b/a
LOWENTHAL CAPITAL MANAGEMENT
235 Montgomery Street, Suite 920
San Francisco, CA 94104
Form 13F File Number: 28-05315
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:
RONN C. LOWENTHAL
415-788-4823
Signature, Place and Date of Signing:
/s/ Ronn C. Lowenthal
__________________________________
Ronn C. Lowenthal, d/b/a Lowenthal
Capital Management
San Francisco, CA
05/11/00
Report Type (Check only one):
/ x / 13F HOLDINGS REPORT. (Check here if all holdings of this
reporting manager are reported in this report)
/ / 13F NOTICE. (Check here if no holdings reported are in
this report, and all holdings are reported by other reporting
manager(s))
/ / 13F COMBINATION REPORT. (Check here if a portion of the
holdings for this reporting manager are reported in this report
and a portion are reported by other reporting manager(s))
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FORM 13F SUMMARY PAGE
Report Summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Total: 58
Form 13F Information Table Value Total (x$1000): 122,164
List of Other Included Managers: None
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<TABLE>
FORM 13F INFORMATION TABLE
<CAPTION>
Title of Value Shares/ Sh/ Put Invstmt Other
Name of Issuer class CUSIP (x$1000) Prn Amt Prn Call Dscret Manager Sole Shared None
<S> <C> <C> <C> <C> <C> <C> <C>
ACCRUE SOFTWARE INC COM Common 00437W102 2290 50000 SH Sole 50000
ADELPHIA COMMUNICATIONS Common 006848105 870 20000 SH Sole 20000
AMDOCS LTD ORD Common G02602103 1258 17000 SH Sole 17000
AMERICA ONLINE INC DEL COM Common 02364J104 1012 15000 SH Sole 15000
APPLIED MICROSYSTEMS COM Common 037935103 1562 100000 SH Sole 100000
Abbott Laboratories Common 002824100 880 25000 SH Sole 25000
CBS Common 12490K107 1302 23000 SH Sole 23000
CENTRA SOFTWARE INC COM Common 15234X103 1050 50000 SH Sole 50000
CFI PROSERVICES INC COM Common 12525N100 136 20000 SH Sole 20000
CHARTER COMMUNCTNS DEL CL A Common 16117M107 559 39000 SH Sole 39000
CHORDIANT SOFTWARE INC COM Common 170404107 975 60000 SH Sole 60000
COMPUTER SCIENCES CORP COM Common 205363104 1582 20000 SH Sole 20000
Cisco Systems Common 17275R102 3092 40000 SH Sole 40000
DAOU SYS INC COM Common 237015102 420 120000 SH Sole 120000
DELANO TECHNOLOGY CORP COM Common 245701107 1122 50000 SH Sole 50000
DELL COMPUTER CORP COM Common 247025109 1133 21000 SH Sole 21000
EGREETINGS NETWORK INC COM Common 282343102 1024 180000 SH Sole 180000
EXTREME NETWORKS Common 30226D106 1580 20000 SH Sole 20000
Enron Common 293561106 4867 65000 SH Sole 65000
FIRST DATA CORP COM Common 319963104 1109 25000 SH Sole 25000
FIRSTAR CORP NEW WIS COM Common 33763V109 1147 50000 SH Sole 50000
GOLDMAN SACHS GROUP COM Common 38141G104 1789 17000 SH Sole 17000
Gillette Common 375766102 791 21000 SH Sole 21000
HOMESTORE COM INC COM Common 437852106 1048 21500 SH Sole 21500
IMANAGE INC COM Common 45245Y105 1694 100000 SH Sole 100000
IMMERSION CORP COM Common 452521107 762 12700 SH Sole 12700
INTEGRATED INFORMATION COM Common 45817B103 1090 50000 SH Sole 50000
INTERSIL HLDG CORP CL A Common 46069S109 517 10000 SH Sole 10000
IPRINT COM INC COM Common 462628108 1925 100000 SH Sole 100000
International Business Common 459200101 1888 16000 SH Sole 16000
Machine
MERCK & CO INC COM Common 589331107 932 15000 SH Sole 15000
MESSAGEMEDIA INC COM Common 590787107 634 50000 SH Sole 50000
NETSOLVE INC COM Common 64115J106 1290 40000 SH Sole 40000
Netro Corp Common 64114R109 17280 265786 SH Sole 265786
ONDISPLAY INC COM Common 68232L100 2479 30000 SH Sole 30000
PACKETEER INC COM Common 695210104 787 22500 SH Sole 22500
PATIENT INFOSYSTEMS COM Common 702915109 19 10000 SH Sole 10000
PEPSICO INC COM Common 713448108 976 28000 SH Sole 28000
PETROMIN RES LTD COM Common 71646E100 822 50000 SH Sole 50000
PFSWEB INC COM Common 717098107 240 15000 SH Sole 15000
PLANETRX COM INC COM Common 727049108 540 67500 SH Sole 67500
PREVIEW SYS INC COM Common 741379101 2366 50000 SH Sole 50000
PRIME RESPONSE INC COM Common 74158B100 305 20000 SH Sole 20000
Peoplesoft Common 712713106 3300 165000 SH Sole 165000
Project Software Common 74339P101 565 10000 SH Sole 10000
Providan Financial Grp Common 74406A102 1083 12500 SH Sole 12500
QUANTUM EFFECT DEVICES COM Common 74764T107 398 5000 SH Sole 5000
QUEST SOFTWARE INC COM Common 74834T103 2819 25000 SH Sole 25000
QWEST COMMUNICATIONS COM Common 749121109 1680 35000 SH Sole 35000
SILVERSTREAM SOFTWARE COM Common 827907106 739 10000 SH Sole 10000
Safeway Common 786514208 1041 23000 SH Sole 23000
TURNSTONE SYSTEMS INC COM Common 900423104 1265 11000 SH Sole 11000
Trintech Group Limited Common 896682101 12220 313334 SH Sole 313334
VENTRO CORP COM Common 922815105 566 10000 SH Sole 10000
VERSATA INC COM Common 925298101 25570 424845 SH Sole 424845
WILLIAMS COS INC DEL COM Common 969457100 1318 30000 SH Sole 30000
WITNESS SYS INC COM Common 977424100 456 15000 SH Sole 15000
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