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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: 12/31/99
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-
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
02/11/00
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: 56
Form 13F Information Table Value Total (x$1000): 111,754
List of Other Included Managers: None
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FORM 13F INFORMATION TABLE
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Title Value Shrs or SH/ Put/ Investment Other Voting Authority
Name of Issuer of Class CUSIP (x$1000) prn amt PRN Call discretion Managers Sole Share None
<S> <C> <C> <C> <C> <C> <C> <C>
ACCRUE SOFTWARE INC COM COM 00437W102 541 10,000 SH Sole 10,000
AGILE SOFTWARE CP DEL COM COM 00846X105 5,431 25,000 SH Sole 25,000
AMDOCS LTD ORD COM G02602103 724 21,000 SH Sole 21,000
APPLIED MICROSYSTEMS COM COM 037935103 1,365 120,000 SH Sole 120,000
ABBOTT LABORATORIES COM 002824100 908 25,000 SH Sole 25,000
ASSOCIATES FIRST CAPITAL COM 046008108 686 25,000 SH Sole 25,000
CBS COM 12490K107 1,471 23,000 SH Sole 23,000
CFI PROSERVICES INC COM COM 12525N100 164 20,000 SH Sole 20,000
CHARTER COMMUNCTNS DEL CL COM 16117M107 853 39,000 SH Sole 39,000
COBALT NETWORKS INC COM COM 19074R101 325 3,000 SH Sole 3,000
COINSTAR INC COM COM 19259P300 700 50,000 SH Sole 50,000
COMPUTER SCIENCES CORP COM COM 205363104 1,892 20,000 SH Sole 20,000
CONEXANT SYSTEMS INC COM COM 207142100 664 10,000 SH Sole 10,000
COPPER MTN NETWORKS COM COM 217510106 487 10,000 SH Sole 10,000
CYPRESS SEMICONDUCTOR COM COM 232806109 971 30,000 SH Sole 30,000
CHASE MANHATTAN COM 16161A108 1,321 17,000 SH Sole 17,000
CISCO SYSTEMS COM 17275R102 4,071 38,000 SH Sole 38,000
DALEEN TECHNOLOGIES COM COM 23437N104 1,094 50,000 SH Sole 50,000
DAOU SYS INC COM COM 237015102 367 120,000 SH Sole 120,000
DELL COMPUTER CORP COM COM 247025109 1,071 21,000 SH Sole 21,000
EGAIN COMMUNICATIONS COM COM 28225C103 377 10,000 SH Sole 10,000
EGREETINGS NETWORK INC COM COM 282343102 1,012 100,000 SH Sole 100,000
EL PASO NATURAL GAS COM 283905107 854 22,000 SH Sole 22,000
EXTREME NETWORKS COM 30226D106 835 10,000 SH Sole 10,000
ENRON COM 293561106 3,661 82,500 SH Sole 82,500
GLOBESPAN INC COM COM 379571102 651 10,000 SH Sole 10,000
GOLDMAN SACHS GROUP COM COM 38141G104 1,601 17,000 SH Sole 17,000
GILLETTE COM 375766102 865 21,000 SH Sole 21,000
HI/FN INC COM COM 428358105 387 10,000 SH Sole 10,000
IMMERSION CORP COM COM 452521107 583 15,200 SH Sole 15,200
INTEGRATED SILIC SOLTN COM COM 45812P107 1,656 100,000 SH Sole 100,000
INTEL COM 458140100 1,152 14,000 SH Sole 14,000
INTERNA'L BUSINESS MACHINE COM 459200101 1,726 16,000 SH Sole 16,000
JUNIPER NETWORKS INC COM COM 48203R104 680 2,000 SH Sole 2,000
MONSANTO COM 611662107 765 21,600 SH Sole 21,600
NET2PHONE COM COM 64108N106 230 5,000 SH Sole 5,000
NETSOLVE INC COM COM 64115J106 630 20,000 SH Sole 20,000
NETWORKS ASSOCS INC COM COM 640938106 1,334 50,000 SH Sole 50,000
NATIONAL DATA CORP COM 635621105 882 26,000 SH Sole 26,000
NETRO CORP COM 64114R109 42,984 842,821 SH Sole 842,821
ONDISPLAY INC COM COM 68232L100 454 5,000 SH Sole 5,000
PARADYNE NETWORKS INC COM COM 69911G107 1,090 40,000 SH Sole 40,000
PATIENT INFOSYSTEMS COM COM 702915109 21 10,000 SH Sole 10,000
PEPSICO INC COM COM 713448108 987 28,000 SH Sole 28,000
PEREGRINE SYSTEMS INC COM COM 71366Q101 842 10,000 SH Sole 10,000
PEOPLESOFT COM 712713106 3,517 165,000 SH Sole 165,000
PROVIDAN FINANCIAL GRP COM 74406A102 1,138 12,500 SH Sole 12,500
QUICKLOGIC CORP COM COM 74837P108 1,650 100,000 SH Sole 100,000
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QWEST COMMUNICATIONS COM COM 749121109 2,257 52,500 SH Sole 52,500
ROYAL DUTCH PETE CO NY REG COM 780257804 908 15,000 SH Sole 15,000
SAFEWAY COM 786514208 822 23,000 SH Sole 23,000
TRINTECH GROUP LIMITED COM 896682101 8,250 166,667 SH Sole 166,667
UNITED PARCEL SERVICE CL B COM 911312106 276 4,000 SH Sole 4,000
WEIRTON STL CORP COM COM 948774104 681 100,000 SH Sole 100,000
WILLIAMS COS INC DEL COM COM 969457100 611 20,000 SH Sole 20,000
ZORAN CORP COM COM 98975F101 279 5,000 SH Sole 5,000
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