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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 (2015Q1)
Portfolio Summary: 188 holdings with a total value of $719,103,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 SUNEDISON INC 1,705,000 40,920,000 5.69%
2 JAZZ PHARMACEUTICALS PLC SHS USD 234,600 40,552,000 5.64%
3 HANNON ARMSTRONG SUST INFR C 1,518,799 27,764,000 3.86%
4 ZIMMER BIOMET HLDGS INC 183,500 21,565,000 3.00%
5 COMMUNITY HEALTH SYS INC NEW COM 406,400 21,247,000 2.95%
6 ISHARES TR 160,000 19,900,000 2.77% Call
7 GILEAD SCIENCES INC 178,500 17,516,000 2.44%
8 VISTEON CORP COM NEW 179,500 17,304,000 2.41%
9 BARRICK GOLD CORP 1,507,300 16,520,000 2.30% Call
10 SPDR S&P 500 ETF TR 80,000 16,515,000 2.30% Call
11 NORTHSTAR RLTY FIN CORP COM NEW 875,000 15,852,000 2.20%
12 SOLARCITY CORP 307,600 15,774,000 2.19%
13 CELGENE CORP 128,500 14,813,000 2.06%
14 GILEAD SCIENCES INC 150,000 14,720,000 2.05% Call
15 TERRAFORM POWER 403,000 14,714,000 2.05%
16 ZIMMER BIOMET HLDGS INC 125,000 14,690,000 2.04% Call
17 TWITTER INC 275,500 13,797,000 1.92%
18 BIOSCRIP INC 3,010,000 13,335,000 1.85%
19 PHYSICIANS RLTY TR 750,000 13,208,000 1.84%
20 VERINT SYS INC COM 208,000 12,881,000 1.79%
21 FACEBOOK INC 156,000 12,826,000 1.78%
22 ACCURAY INCORPORATED COM 1,345,000 12,515,000 1.74%
23 SUPERNUS PHARMACEUTICALS INC COM 981,300 11,864,000 1.65%
24 STERIS PLC 157,000 11,032,000 1.53%
25 INDEPENDENCE REALTY 1,100,000 10,439,000 1.45%
26 RITE AID CORP 1,190,000 10,335,000 1.44%
27 SPDR S&P 500 ETF TR 50,000 10,322,000 1.44% Put
28 CONSTELLIUM HOLDCO 466,100 9,471,000 1.32%
29 APPLIED OPTOELECTRONICS INC 662,900 9,202,000 1.28%
30 DIAMONDBACK ENERGY 119,500 9,182,000 1.28%
31 SCOTTS MIRACLE GRO CO 135,000 9,068,000 1.26%
32 EOG RES INC 95,400 8,747,000 1.22%
33 MELCO ENTMT ADR 406,500 8,723,000 1.21%
34 WAL-MART STORES INC 105,000 8,637,000 1.20% Call
35 MAXWELL TECHNOLOGIES INC 1,043,300 8,409,000 1.17%
36 AKORN INC 168,000 7,978,000 1.11%
37 GOPRO INC COM CL A 165,000 7,163,000 1.00%
38 ARM Holdings plc 142,300 7,015,000 0.98%
39 COVANTA HLDG CORP 310,000 6,953,000 0.97%
40 APPLIED MATLS INC 304,000 6,858,000 0.95%
41 NEWFIELD EXPLOR 187,400 6,576,000 0.91%
42 BLUEROCK RESIDENTIAL 480,000 6,398,000 0.89%
43 WAL-MART STORES INC 75,000 6,169,000 0.86%
44 WYNN RESORTS LTD 45,000 5,665,000 0.79%
45 COMMUNITY HEALTH SYS INC NEW COM 95,700 5,003,000 0.70% Call
46 SUMMIT MATLS INC CL A 215,000 4,762,000 0.66%
47 City Office REIT Inc 325,000 4,137,000 0.58%
48 GENERAL MTRS CO 100,000 3,750,000 0.52% Call
49 STAAR SURGICAL CO 447,600 3,326,000 0.46%
50 MELCO ENTMT ADR 150,000 3,219,000 0.45% Call
Page 1 of 4

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001164691-15-000097, filed 2015.05.15).

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.