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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 (2014Q2)
Portfolio Summary: 244 holdings with a total value of $784,325,000.
#
Name
Shares
Value ($)
%
Options
Notes
201 FERRO CORP 25,000 314,000 0.04%
202 INTEL CORP 10,000 309,000 0.04%
203 MAXIM INTEGR 9,000 304,000 0.04%
204 INTERPUBLIC GROUP COS INC 15,000 293,000 0.04%
205 MEDNAX INC 5,000 291,000 0.04%
206 WASTE CONNECTIONS INC COM 6,000 291,000 0.04%
207 IGNITE RESTAURANT GROUP INC 20,000 291,000 0.04%
208 NCI BLDG SYS INC 15,000 291,000 0.04%
209 PACKAGING CORP AMER 4,000 286,000 0.04%
210 AMERESCO INC 40,000 281,000 0.04%
211 APPLE COMPUTER INC 3,000 279,000 0.04%
212 CHIQUITA BRANDS INTL 25,000 271,000 0.03%
213 CELESTICA INC 20,000 251,000 0.03%
214 MEMORIAL RESOURCE DEV CORP 10,000 244,000 0.03%
215 STERLING CONSTRUCTION CO INC 25,000 235,000 0.03%
216 DERMA SCIENCES ORD 20,000 231,000 0.03%
217 COMMUNITY HEALTH SYS INC NEW 5,000 227,000 0.03%
218 NOVARTIS A G 2,500 226,000 0.03%
219 UNILIFE CORP 75,000 222,000 0.03%
220 FLEX LTD 20,000 221,000 0.03%
221 FLUIDIGM CORP DEL COM 7,500 221,000 0.03%
222 STREAMLINE HEALTH SOLUTIONS COM 45,000 216,000 0.03%
223 CONCORD MED SVCS HLDGS LTD 25,000 201,000 0.03%
224 NXP SEMICONDUCTORS N V 7,500 176,000 0.02% Put
225 Noranda Aluminum Holding 49,400 174,000 0.02%
226 STAAR Surgical Co 10,000 168,000 0.02%
227 LEMAITRE VASCULAR INC COM 20,000 165,000 0.02%
228 8X8 INC NEW COM 20,000 162,000 0.02%
229 New Residential Investment Cor 25,000 158,000 0.02%
230 INSTALLED BLDG PRODS INC COM 12,500 153,000 0.02%
231 WEIBO CORP 7,000 143,000 0.02%
232 GROUPON INC 20,000 132,000 0.02%
233 ENZO BIOCHEM INC 25,000 131,000 0.02%
234 XOMA CORP DEL 25,000 115,000 0.01%
235 CANCER GENETICS 10,000 113,000 0.01%
236 FUSION-IO INC 10,000 113,000 0.01%
237 MULTI FINELINE ELECTRONIX IN 10,000 110,000 0.01%
238 Ballard Power Sys New 26,400 109,000 0.01%
239 ACELRX PHARMACEUTICALS INC 10,000 103,000 0.01%
240 BLACKBERRY LTD 10,000 102,000 0.01%
241 Amedica Corporation 17,500 79,000 0.01%
242 Perfect World Co- Spn ADR 3,800 75,000 0.01% Call
243 LIGHTINTHEBOX HLDG CO LTD SPONSORED ADR 10,000 64,000 0.01%
244 Perfect World Co- Spn ADR 2,000 39,000 0.00%
Page 5 of 5

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0000902664-14-003563, filed 2014.08.14).

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.