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Fund Holdings of ARDSLEY ADVISORY PARTNERS Filed on 2012-02-09

Link to Original SEC 13F filings sorted on filing date: 2012-02-09 | 2011-11-14 | 2011-08-12 | 2011-05-16 | 2011-02-14 | 2010-11-15 | 2010-08-16 | 2010-05-17 | 2010-02-12 | 2009-11-16 | 2009-08-14 | 2009-05-15 | 2009-02-13 | 2008-11-14 | 2008-08-14 | 2008-05-08 |

1. Fund Information

Fund NameARDSLEY ADVISORY PARTNERS
Fund Manager
Address262 HARBOR DRIVE, 4TH FLOOR,
STAMFORD, CT, 06902
::Google Map
Phone(203) 564-4230
13F Asset Last Qtr$388,797,000
13F Asset This Qtr$478,633,000
Asset Change23.11%

2. Comparison of Holdings by Sectors with Last Quarter

3. Top 20 Holdings (Value) of This Quarter

No.SecurityPut/CallStockSharesValue(x$1000)Activity(Shr)% Port.
1.)AMARIN CORPORATION PLC - AMERICAN DEPOSITARY SHARESAMRN6,300,000$47,187Added 27.27%9.86%
2.)ARTHROCARE CORPORATIONARTC1,159,300$36,727Added 13.10%7.67%
3.)MERCK & CO., INCMRK700,000$26,390New5.51%
4.)PFIZER INCPFE1,200,000$25,968Added 20.00%5.43%
5.)HALLIBURTON COMPANYCALLHAL700,000$24,157Added 3.47%5.05%
6.)GENERAL ELECTRIC COGE1,300,000$23,283New4.86%
7.)AETNA INC.AET450,000$18,986Added 20.00%3.97%
8.)WESTPORT INNOVATIONS INCWPRT465,000$15,457Unchanged3.23%
9.)LINN ENERGY, LLC - COMMON UNITS REPRESENTING LIMITED LIABILITY COMPANY INTERESTSLINE400,000$15,164Unchanged3.17%
10.)FIRST SOLAR, INC.CALLFSLR350,000$11,816New2.47%
11.)ENSCO INTERNATIONAL PLC SPON ADR EA REP 1 ORD CL AESV225,000$10,557New2.21%
12.)HECKMANN CORPORATION COMMON STOCKHEK1,450,000$9,643Added 11.54%2.01%
13.)FIRST SOLAR, INC.FSLR285,000$9,622Added 147.83%2.01%
14.)BRIDGEPOINT EDUCATION, INC.BPI408,700$9,400Cut -13.96%1.96%
15.)CAMERON INTERNATIONAL CORPCAM175,000$8,608New1.80%
16.)BP P.L.C.CALLBP200,000$8,548Unchanged1.79%
17.)HALOZYME THERAPEUTICS, INC.HALO875,000$8,321Cut -20.45%1.74%
18.)UNITED RENTALS, INC.URI275,000$8,126Added 14.58%1.70%
19.)CABOT OIL & GAS CORP.COG106,000$8,045New1.68%
20.)LYONDELLBASELL INDUSTRIES NV ORDINARY SHARES CLASS A (NETHERLANDS)LYB235,800$7,661Cut -30.65%1.60%

4. Top 20 (Value) Holdings BOUGHT NEW in This Quarter

No.SecurityPut/CallStockShares NEWValue(x$1000)% Port.
1.)MERCK & CO., INCMRK700,000$26,3905.51%
2.)GENERAL ELECTRIC COGE1,300,000$23,2834.86%
3.)FIRST SOLAR, INC.CALLFSLR350,000$11,8162.47%
4.)ENSCO INTERNATIONAL PLC SPON ADR EA REP 1 ORD CL AESV225,000$10,5572.21%
5.)CAMERON INTERNATIONAL CORPCAM175,000$8,6081.80%
6.)CABOT OIL & GAS CORP.COG106,000$8,0451.68%
7.)ENERGY XXI (BERMUDA) LIMITEDEXXI200,000$6,3761.33%
8.)FUSHI COPPERWELD, INC.FSIN750,000$5,6401.18%
9.)TIVO INC.TIVO500,000$4,4850.94%
10.)PULTEGROUP, INC.PHM700,000$4,4170.92%
11.)AFLAC INC.AFL100,000$4,3260.90%
12.)AFLAC INC.CALLAFL100,000$4,3260.90%
13.)MGM RESORTS INTERNATIONALMGM350,000$3,6510.76%
14.)PIONEER NATURAL RESOURCES COPXD40,000$3,5790.75%
15.)NEXTERA ENERGY INCNEE45,000$2,7400.57%
16.)PFIZER INCCALLPFE100,000$2,1640.45%
17.)ITRON, INC.ITRI50,000$1,7890.37%
18.)FUEL SYSTEMS SOLUTIONS, INC.FSYS85,000$1,4020.29%
19.)MAXWELL TECHNOLOGIES, INC.MXWL85,000$1,3800.29%
20.)NCI BUILDING SYSTEMS, INC.NCS125,000$1,3590.28%

5. Top 20 (Value) Holdings Totally SOLD OUT in This Quarter

No.SecurityPut/CallStockShares SOLDValue(x$1000)% Port. Last Qtr
1.)HARBIN ELECTRIC, INC.HRBN1,125,000$23,2315.98%
2.)MELLANOX TECHNOLOGIES, LTD.MLNX300,000$9,3662.41%
3.)WHITING PETROLEUM CORPWLL225,000$7,8932.03%
4.)EBAY INC.EBAY250,000$7,3731.90%
5.)BROADSOFT, INC.BSFT181,000$5,4931.41%
6.)CHART INDUSTRIES, INC.GTLS120,000$5,0621.30%
7.)MARKET VECTORS ETF TRJR GOLD MINES ETFGDXJ175,000$4,9261.27%
8.)AVAGO TECHNOLOGIES LIMITEDAVGO125,000$4,0961.05%
9.)GRAFTECH INTERNATIONAL LTD.CALLGTI200,000$2,5400.65%
10.)KEYUAN PETROCHEMICALS INC713,800$2,0560.53%
11.)QKL STORES, INC.QKLS1,450,000$1,7400.45%
12.)ENTROPIC COMMUNICATIONS, INC.ENTR400,000$1,6520.43%
13.)GLOBE SPECIALTY METALS INC.GSM90,000$1,3070.34%
14.)KBR INCKBR50,000$1,1820.30%
15.)COVANTA HOLDING CORPCVA70,000$1,0630.27%
16.)KIOR INCKIOR45,000$9330.24%
17.)MCDERMOTT INTERNATIONAL, INC. (PANAMA)MDR65,000$6990.18%
18.)FUELCELL ENERGY, INC.FCEL750,000$6300.16%
19.)CVD EQUIPMENT CORPORATIONCVV40,000$5400.14%
20.)PROSHARES ULTRASHORT BARCLAYS 20+ TRSYTBT25,000$4860.13%