Ardsley Advisory Partners

Ardsley Advisory Partners as of March 31, 2012

Portfolio Holdings for Ardsley Advisory Partners

Ardsley Advisory Partners holds 111 positions in its portfolio as reported in the March 2012 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Amarin Corporation (AMRN) 10.4 $53M 4.6M 11.32
Merck & Co (MRK) 4.6 $23M 600k 38.40
MGIC Investment (MTG) 4.4 $22M 4.5M 4.96
General Electric Company 4.4 $22M 1.1M 20.07
Pfizer (PFE) 4.0 $20M 900k 22.65
BroadSoft 3.7 $19M 485k 38.25
Cheniere Energy (LNG) 3.6 $18M 1.2M 14.98
Aetna 3.3 $17M 331k 50.16
Polypore International 2.7 $14M 390k 35.16
United Rentals (URI) 2.6 $13M 305k 42.89
Pioneer Natural Resources (PXD) 2.4 $12M 110k 111.59
F5 Networks (FFIV) 2.0 $10M 77k 134.95
Bridgepoint Education 1.8 $9.3M 375k 24.75
Westport Innovations 1.8 $9.2M 225k 40.92
Linn Energy 1.7 $8.5M 223k 38.15
Stamps 1.5 $7.7M 275k 27.88
Industries N shs - a - (LYB) 1.5 $7.5M 171k 43.65
Keynote Systems 1.5 $7.4M 375k 19.76
CIGNA Corporation 1.5 $7.4M 150k 49.25
LSI Corporation 1.4 $7.1M 823k 8.68
Heckmann Corporation 1.4 $7.0M 1.6M 4.31
Delta Air Lines (DAL) 1.4 $6.9M 700k 9.92
Amerigon Incorporated 1.3 $6.5M 400k 16.18
Cree 1.2 $6.3M 200k 31.63
Spreadtrum Communications 1.2 $6.3M 380k 16.50
Gnc Holdings Inc Cl A 1.2 $6.1M 175k 34.89
Comverge 1.2 $5.9M 3.2M 1.84
EnteroMedics 1.1 $5.8M 2.6M 2.26
Active Power 1.1 $5.8M 7.4M 0.78
Allot Communications (ALLT) 1.1 $5.8M 248k 23.25
Inphi Corporation 1.1 $5.7M 400k 14.18
Cabot Oil & Gas Corporation (CTRA) 1.1 $5.5M 175k 31.17
Titan Machinery (TITN) 1.1 $5.4M 190k 28.20
Cameron International Corporation 1.1 $5.3M 100k 52.83
Nasdaq Omx (NDAQ) 1.0 $5.2M 200k 25.90
Grifols S A 1.0 $5.0M 650k 7.71
SanDisk Corporation 1.0 $5.0M 100k 49.59
Cobalt Intl Energy 0.9 $4.5M 150k 30.03
3M Company (MMM) 0.9 $4.5M 50k 89.22
TiVo 0.8 $4.2M 350k 11.99
eBay (EBAY) 0.7 $3.7M 100k 36.90
World Energy Solutions 0.7 $3.6M 760k 4.79
Genworth Financial (GNW) 0.7 $3.5M 425k 8.32
Fushi Copperweld 0.7 $3.5M 465k 7.55
Carrizo Oil & Gas 0.7 $3.5M 125k 28.26
Sensata Technologies Hldg Bv 0.7 $3.3M 100k 33.48
EnergySolutions 0.6 $2.8M 575k 4.90
Calpine Corporation 0.5 $2.6M 150k 17.21
Itron (ITRI) 0.5 $2.5M 55k 45.42
Covanta Holding Corporation 0.5 $2.4M 150k 16.23
NCI Building Systems 0.5 $2.3M 200k 11.51
ZBB Energy Corporation (ZBB) 0.5 $2.3M 3.4M 0.68
Netqin Mobile 0.4 $2.1M 200k 10.64
LSB Industries (LXU) 0.4 $2.0M 52k 38.92
FuelCell Energy 0.4 $2.0M 1.3M 1.56
Flow International Corporation 0.4 $1.9M 475k 4.02
ProShares UltraShort Euro (EUO) 0.4 $1.9M 100k 18.97
Ameres (AMRC) 0.3 $1.7M 125k 13.55
Accuride Corporation 0.3 $1.7M 200k 8.69
Veolia Environnement (VEOEY) 0.3 $1.7M 100k 16.51
Green Plains Renewable Energy (GPRE) 0.3 $1.6M 150k 10.79
Exide Technologies 0.3 $1.6M 500k 3.13
Nextera Energy (NEE) 0.3 $1.5M 25k 61.08
Ormat Technologies (ORA) 0.3 $1.5M 73k 20.15
Tyco International Ltd S hs 0.3 $1.4M 25k 56.20
TRW Automotive Holdings 0.3 $1.4M 30k 46.47
Calavo Growers (CVGW) 0.3 $1.3M 50k 26.78
Just Energy Group 0.3 $1.4M 100k 13.82
Rockwood Holdings 0.3 $1.3M 25k 52.16
Ada-es 0.2 $1.3M 52k 24.31
ESCO Technologies (ESE) 0.2 $1.1M 30k 36.77
AECOM Technology Corporation (ACM) 0.2 $1.1M 50k 22.38
Exterran Holdings 0.2 $989k 75k 13.19
Gse Holding 0.2 $985k 75k 13.13
Worthington Industries (WOR) 0.2 $959k 50k 19.18
MasTec (MTZ) 0.2 $905k 50k 18.10
Thermon Group Holdings (THR) 0.2 $920k 45k 20.44
Headwaters Incorporated 0.2 $838k 200k 4.18
FutureFuel (FF) 0.2 $860k 78k 10.98
LDK Solar 0.2 $800k 200k 4.00
Delphi Automotive 0.2 $790k 25k 31.60
Commercial Metals Company (CMC) 0.1 $741k 50k 14.82
United States Steel Corporation (X) 0.1 $734k 25k 29.36
Gevo 0.1 $781k 85k 9.19
American Railcar Industries 0.1 $705k 30k 23.50
Greenbrier Companies (GBX) 0.1 $594k 30k 19.80
EnerNOC 0.1 $540k 75k 7.20
Cardinal Health (CAH) 0.1 $431k 10k 43.10
Shire 0.1 $332k 3.5k 94.86
Starbucks Corporation (SBUX) 0.1 $335k 6.0k 55.83
Garmin (GRMN) 0.1 $376k 8.0k 47.00
Tesla Motors (TSLA) 0.1 $372k 10k 37.20
Covidien 0.1 $328k 6.0k 54.67
Thermo Fisher Scientific (TMO) 0.1 $282k 5.0k 56.40
VMware 0.1 $281k 2.5k 112.40
Nxp Semiconductors N V (NXPI) 0.1 $293k 11k 26.64
United Therapeutics Corporation (UTHR) 0.1 $259k 5.5k 47.09
Adtran 0.0 $218k 7.0k 31.14
McKesson Corporation (MCK) 0.0 $219k 2.5k 87.60
Finisar Corporation 0.0 $222k 11k 20.18
Aruba Networks 0.0 $223k 10k 22.30
China Hydroelectric Corp 0.0 $225k 113k 2.00
Himax Technologies (HIMX) 0.0 $144k 70k 2.06
Ceragon Networks (CRNT) 0.0 $171k 18k 9.50
Ecotality 0.0 $141k 143k 0.98
Alcatel-Lucent 0.0 $114k 50k 2.28
E Commerce China Dangdang 0.0 $81k 10k 8.10
Powerwave Technologies 0.0 $123k 60k 2.05
Camelot Information Systems 0.0 $38k 10k 3.80
Utstarcom Holdings Corpf 0.0 $73k 50k 1.46
Cereplast (CERP) 0.0 $24k 39k 0.61