Dark
Light
System
Institutional Investment Manager
ARDSLEY ADVISORY PARTNERS LP
ARDSLEY ADVISORY PARTNERS LP (CIK: 0000900529) incorporated in New York, located at 105 Rowayton Ave, Norwalk, CT. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q2)
Portfolio Summary: 162 holdings with a total value of $796,582,000.
#
Name
Shares
Value ($)
%
Options
Notes
51 PRIMORIS SVCS CORP 146,000 2,891,000 0.36%
52 CECO ENVIRONMENTAL CORP 244,300 2,748,000 0.34%
53 PROSHARES TR 40,000 2,621,000 0.33%
54 DELPHI AUTOMOTIVE PLC 30,000 2,552,000 0.32%
55 MOSAIC CO NEW 52,500 2,464,000 0.31%
56 FIRST SOLAR INC 50,000 2,350,000 0.30%
57 GREEN PLAINS INC COM 85,000 2,342,000 0.29%
58 SUNOPTA INC 186,200 1,998,000 0.25%
59 GLOBE SPECIALTY METALS INC 110,000 1,947,000 0.24%
60 XYLEM INC 50,000 1,854,000 0.23%
61 MASTEC INC 90,000 1,788,000 0.22%
62 BERRY PLASTICS GROUP INC 55,000 1,782,000 0.22%
63 TRINA SOLAR ADR REPTG 50 ORD 150,000 1,772,000 0.22%
64 ITRON INC 50,000 1,722,000 0.22%
65 TERRAFORM PWR INC CL A COM 45,000 1,709,000 0.21%
66 PFIZER INC 50,000 1,689,000 0.21%
67 POWER SOLUTIONS INTL INC 30,000 1,621,000 0.20%
68 VERTEX ENERGY INC 967,743 1,552,000 0.19%
69 WELLS FARGO & CO NEW 25,000 1,406,000 0.18%
70 GENERAL ELECTRIC CO 50,000 1,339,000 0.17%
71 TCP INTL HLDGS LTD 316,174 1,331,000 0.17%
72 3-D SYS CORP DEL 65,000 1,296,000 0.16%
73 ALLERGAN PLC 4,000 1,214,000 0.15%
74 DOW CHEM CO 22,500 1,160,000 0.15%
75 Horsehead Holding Corp. 97,500 1,143,000 0.14%
76 JA SOLAR HOLDINGS COMPANY LIMITED SPON ADR REP5ORD 125,000 1,069,000 0.13%
77 D R HORTON INC 35,000 958,000 0.12%
78 WEYERHAEUSER CO 30,000 950,000 0.12%
79 TRINITY BIOTECH PLC 52,500 948,000 0.12%
80 CABOT MICROELECTRONICS CP 20,000 942,000 0.12%
81 WABCO HLDGS INC 7,500 928,000 0.12%
82 COSAN LTD 150,000 924,000 0.12%
83 TUTOR PERINI CORP 40,000 863,000 0.11%
84 ENERGEN CORP COM 12,500 854,000 0.11%
85 TYSON FOODS INC 20,000 853,000 0.11%
86 CARDINAL HEALTH INC 10,000 837,000 0.11%
87 LABORATORY CORP AMER HLDGS 6,500 788,000 0.10%
88 BECTON DICKINSON & CO 5,500 779,000 0.10%
89 MORGAN STANLEY 20,000 776,000 0.10%
90 BIOAMBER INC 90,000 774,000 0.10%
91 RED ROBIN GOURMET BURGERS INC COM 9,000 772,000 0.10%
92 CHICAGO BRIDGE & IRON CO N V 15,000 751,000 0.09%
93 CVS HEALTH CORP 7,000 734,000 0.09%
94 FORTRESS TRANS INFRST INVS L 40,000 725,000 0.09%
95 QUANTA SVCS INC 25,000 724,000 0.09%
96 CANADIAN SOLAR INC 25,000 715,000 0.09%
97 GOLAR LNG LTD 15,000 702,000 0.09%
98 HCA HOLDINGS INC 7,500 692,000 0.09%
99 COLFAX CORP 15,000 692,000 0.09%
100 GRAY TELEVISION INC COM 40,000 627,000 0.08%
Page 2 of 4

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001164691-15-000138, filed 2015.08.14).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.