13F-HR 1 form13fhr.txt ARDSLEY ADVISORY PARTNERS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: June 30, 2007 ----------------------- 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: Ardsley Advisory Partners -------------------------------------------------- Address: 262 Harbor Drive, 4th Floor -------------------------------------------------- Stamford, CT 06902 -------------------------------------------------- -------------------------------------------------- Form 13F File Number: 28-04639 ------------------ 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: Steven Napoli -------------------------------------------------- Title: Partner -------------------------------------------------- Phone: 203-564-4230 -------------------------------------------------- Signature, Place, and Date of Signing: /s/ Steven Napoli Stamford, CT 8/13/07 ------------------------ --------------------------- --------- [Signature] City, State] [Date] 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).) List of Other Managers Reporting for this Manager: none Form 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 ------------- Form 13F Information Table Entry Total: 69 ------------- Form 13F Information Table Value Total: $952,579 ------------- (thousands) List of Other Included Managers: none Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report. FORM 13F INFORMATION TABLE
TITLE OF VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY NAME OF ISSUER CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE ADA-ES INC COM 005208103 833 39,000 SH SOLE 39,000 0 0 ADOBE SYS INC COM 00724F101 18,068 450,000 SH SOLE 450,000 0 0 AETNA INC NEW COM 00817Y108 34,580 700,000 SH SOLE 700,000 0 0 AKAMAI TECHNOLOGIES INC COM 00971T101 7,296 150,000 SH SOLE 150,000 0 0 ALTRIA GROUP INC COM 02209S103 35,070 500,000 SH SOLE 500,000 0 0 AMERICAN INTERNATIONAL GROUP COM 026874107 14,006 200,000 SH SOLE 200,000 0 0 ARUBA NETWORKS INC COM 043176106 3,015 150,000 SH SOLE 150,000 0 0 AVID TECHNOLOGY INC COM 05367P100 9,721 275,000 SH SOLE 275,000 0 0 BLACKBOARD INC COM 091935502 16,848 400,000 SH SOLE 400,000 0 0 CECO ENVIRONMENTAL CORP COM 125141101 1,205 105,000 SH SOLE 105,000 0 0 CIENA CORP COM NEW 171779309 18,065 500,000 SH SOLE 500,000 0 0 CISCO SYS INC COM 17275R102 47,345 1,700,000 SH SOLE 1,700,000 0 0 CLEAN ENERGY FUELS CORP COM 184499101 942 75,000 SH SOLE 75,000 0 0 COVANTA HLDG CORP COM 22282E102 19,957 809,600 SH SOLE 809,600 0 0 CUTERA INC COM 232109108 11,214 450,000 SH SOLE 450,000 0 0 CVS CAREMARK CORP COM 126650100 21,870 600,000 SH SOLE 600,000 0 0 CYPRESS SEMICONDUCTOR CORP COM 232806109 1,747 75,000 SH SOLE 75,000 0 0 DEVON ENERGY CORP COM 25179M103 15,658 200,000 SH SOLE 200,000 0 0 DURECT CORP COM 266605104 1,251 325,000 SH SOLE 325,000 0 0 DYADIC INTL INC COM 26745T101 109 72,500 SH SOLE 72,500 0 0 EMCORE CORP COM 290846104 1,226 225,000 SH SOLE 225,000 0 0 ENERGY PARTNERS LTD COM 29270U105 11,266 675,000 SH SOLE 675,000 0 0 ENVIRONMENTAL PWR CORP COM 29406L201 582 65,000 SH SOLE 65,000 0 0 EXPRESS SCRIPTS INC COM 302182100 17,504 350,000 SH SOLE 350,000 0 0 F5 NETWORKS INC COM 315616102 30,225 375,000 SH SOLE 375,000 0 0 FINISAR COM 31787A101 13,230 3,500,000 SH SOLE 3,500,000 0 0 FIRST SOLAR INC COM 336433107 13,394 150,000 SH SOLE 150,000 0 0 FORCE PROTECTION INC COM NEW 345203202 9,375 500,000 SH SOLE 500,000 0 0 FUEL SYS SOLUTIONS INC COM 35952W103 1,584 95,525 SH SOLE 95,525 0 0 FUELCELL ENERGY INC COM 35952H106 20,671 2,610,000 SH SOLE 2,610,000 0 0 GOOGLE INC CL A 38259P508 15,681 30,000 SH SOLE 30,000 0 0 HEALTHWAYS INC COM 422245100 52,107 1,100,000 SH SOLE 1,100,000 0 0 HYDROGEN CORP COM 44887Q108 4,163 925,000 SH SOLE 925,000 0 0 ICICI BANK LTD ADR 45104G104 29,490 600,000 SH SOLE 600,000 0 0 ISIS PHARMACEUTICALS INC COM 464330109 9,196 950,000 SH SOLE 950,000 0 0 JA SOLAR HOLDINGS CO LTD SPON ADR 466090107 18,141 538,000 SH SOLE 538,000 0 0 KENEXA CORP COM 488879107 7,542 200,000 SH SOLE 200,000 0 0 LDK SOLAR CO LTD SPONSORED 50183L107 21,206 677,500 SH SOLE 677,500 0 0 ADR LIGAND PHARMACEUTICALS INC CL B 53220K207 8,600 1,250,000 SH SOLE 1,250,000 0 0 LSB INC COM 502160104 214 10,000 SH SOLE 10,000 0 0 LSI INC COM 50216C108 1,343 75,000 SH SOLE 75,000 0 0 METALICO INC COM 591176102 700 100,000 SH SOLE 100,000 0 0 METRETEK TECHNOLOGIES INC COM 59159Q107 1,685 109,100 SH SOLE 109,100 0 0 MONOGRAM BIOSCIENCES INC COM 60975U108 9,295 5,500,000 SH SOLE 5,500,000 0 0 MORGAN STANLEY COM 617446448 16,776 200,000 SH SOLE 200,000 0 0 NETLOGIC MICROSYSTEMS INC COM 64118B100 20,696 650,000 SH SOLE 650,000 0 0 OCEAN PWR TECHNOLOGIES INC COM NEW 674870308 871 55,000 SH SOLE 55,000 0 0 ORIGIN AGRITECH LIMITED SHS G67828106 6,146 745,000 SH SOLE 745,000 0 0 ORMAT TECHNOLOGIES INC COM 686688102 3,448 91,500 SH SOLE 91,500 0 0 PENWEST PHARMACEUTICALS CO COM 709754105 4,365 350,000 SH SOLE 350,000 0 0 PHARMACEUTICAL PRO DEV INC COM 717124101 36,357 950,000 SH SOLE 950,000 0 0 QUALCOMM INC COM 747525103 41,221 950,000 SH SOLE 950,000 0 0 SALARY COM INC COM 794006106 4,560 380,000 SH SOLE 380,000 0 0 SHAW GROUP INC COM 820280105 19,025 411,000 SH SOLE 411,000 0 0 SIRONA DENTAL SYSTEMS INC COM 82966C103 11,349 300,000 SH SOLE 300,000 0 0 SPIRIT AEROSYSTEMS HLDGS INC COM CL A 848574109 9,914 275,000 SH SOLE 275,000 0 0 SUNOPTA INC COM 8676EP108 1,673 150,000 SH SOLE 150,000 0 0 SUNPOWER CORP COM CL A 867652109 946 15,000 SH SOLE 15,000 0 0 SUNTECH PWR HLDGS CO LTD ADR 86800C104 12,765 350,000 SH SOLE 350,000 0 0 TELVENT GIT SA SHS E90215109 788 30,000 SH SOLE 30,000 0 0 THERMO FISHER SCIENTIFIC INC COM 883556102 38,790 750,000 SH SOLE 750,000 0 0 TRONOX INC COM CL B 897051207 5,199 370,000 SH SOLE 370,000 0 0 TRONOX INCORPORATED CL A 897051108 39,802 2,767,850 SH SOLE 2,767,850 0 0 GRACE WR & CO COM 38388F108 42,858 1,750,000 SH SOLE 1,750,000 0 0 WIRELESS RONIN TECHNOLOGIES COM 97652A203 2,800 350,000 SH SOLE 350,000 0 0 WYETH COM 983024100 37,128 647,500 SH SOLE 647,500 0 0 XTO ENERGY INC COM 98385X106 12,020 200,000 SH SOLE 200,000 0 0 YINGLI GREEN ENERGY HLDG CO ADR 98584B103 1,813 125,000 SH SOLE 125,000 0 0 YUCHENG TECHNOLOGIES LTD COM G98777108 4,058 525,000 SH SOLE 525,000 0 0