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Institutional Investment Manager
Magnetar Financial LLC
Magnetar Financial LLC (CIK: 0001352851) incorporated in Delaware, located at 1603 Orrington Ave., Evanston, IL. Institutional holdings reported to the SEC.

Institutional Holdings (2014Q1)
Original 13F HR (0001104659-14-038884) filed in 2014.05.15
#
Name
Shares
Value ($)
%
Options
Notes
151 PAYCHEX INC 10,000 725 0.02% Call
152 PENN WEST PETE LTD NEW 8,513,538 71,173 1.56%
153 PHILLIPS 66 237,200 18,279 0.40% Call
154 PIONEER NAT RES CO 628,821 117,678 2.59%
155 PIONEER NAT RES CO 57,400 10,742 0.24% Put
156 PLAINS GP HOLDINGS LP 2,737,924 76,607 1.68%
157 POWERSHARES QQQ TRUST 400,000 35,072 0.77% Put
158 PROTO LABS INC COM 60,000 4,060 0.09%
159 Pentair plc 15,400 1,222 0.03% Put
160 QEP RES INC 1,079,644 31,785 0.70%
161 QUALCOMM INC 11,600 915 0.02% Put
162 RADIAN GROUP INC. 40,500,000 60,156 1.32% PRN
163 RANGE RES CORP 819,404 67,986 1.49%
164 REGENCY ENERGY PARTNERS 1,264,062 38,756 0.85%
165 ROCKWELL COLLINS INC 4,000 319 0.01% Put
166 ROSETTA RESOURCES INC 1,458,062 67,917 1.49%
167 ROWAN COMPANIES PLC SHS CL A 2,647,108 89,155 1.96%
168 SANOFI SPOND FUNSPONSORED ADR 375,000 1,890 0.04%
169 SELECT SECTOR SPDR TR 506,300 29,613 0.65% Put
170 SERVICE CORP INTL 1,575,331 31,318 0.69%
171 SIRIUS XM HOLDINGS INC 10,006,000 32,019 0.70% Put
172 SIRIUS XM HOLDINGS INC 19,825,177 63,441 1.39%
173 SIRIUS XM HOLDINGS INC 2,025,400 6,481 0.14% Call
174 SIRONA DENTAL SYS INC 17,600 1,314 0.03% Put
175 SOLAZYME INC 50,000 581 0.01% Call
176 SPDR S&P 500 ETF TR 100,000 18,704 0.41% Call
177 SPDR S&P 500 ETF TR 535,000 100,066 2.20% Put
178 SPECTRA ENERGY CORP 3,465,991 128,034 2.81%
179 SPECTRUM BRANDS HLDGS INC 7,000 558 0.01%
180 SPRINT CORP 14,244,400 130,906 2.88% Call
181 SPRINT CORP 36,900 339 0.01% Put
182 SPRINT CORP 163,700 1,504 0.03%
183 STARZ SERIES A 8,400 271 0.01% Put
184 SUNCOKE ENERGY INC COM 16,900 386 0.01% Put
185 SUNCOR ENERGY INC NEW 750,000 26,206 0.58% Call
186 SUPERIOR ENERGY SVCS INC 95,100 2,925 0.06% Call
187 SYMANTEC CORP 250,000 4,993 0.11% Call
188 Sigma-Aldrich 28,900 2,699 0.06% Put
189 TECK RESOURCES LTD 1,940,790 42,076 0.92%
190 TEEKAY CORPORATION 12,000 675 0.01% Call
191 TEEKAY CORPORATION 5,070,394 285,159 6.27%
192 TESLA INC 2,500,000 2,270 0.05% PRN
193 TEXAS INSTRS INC 22,400 1,056 0.02% Put
194 TEXAS INSTRS INC 475,900 42,650 0.94% Put
195 TIBCO SOFTWARE INC 338,788 6,884 0.15%
196 TIBCO SOFTWARE INC 200,000 4,064 0.09% Put
197 TWENTY FIRST CENTY FOX INC 151,908 4,727 0.10%
198 TWENTY FIRST CENTY FOX INC 47,700 1,525 0.03% Put
199 U S G CORP 16,600 543 0.01% Put
200 ULTRA PETROLEUM CORP 506,300 13,614 0.30% Call
Page 4 of 5
New Holding filing (0001104659-14-060615) filed in 2014.08.14
#
Name
Shares
Value ($)
%
Options
Notes
1 FOREST LABS INC COM 1,344,066 124,017 80.58%
2 JOS A BANK CLOTHIERS INC 350,701 22,550 14.65%
3 EQUAL ENERGY LTD 1,407,196 6,445 4.19%
4 FOREST LABS INC COM 9,600 886 0.58% Put
New Holding filing (0001104659-14-080749) filed in 2014.11.14
#
Name
Shares
Value ($)
%
Options
Notes
1 UNS ENERGY CORP 359,731 21,595 100.00%
New Holding filing (0001104659-15-010871) filed in 2015.02.17
#
Name
Shares
Value ($)
%
Options
Notes
1 TIME WARNER CABLE INC 1,253,100 171,900 52.15% Call
2 TIME WARNER CABLE INC 1,149,951 157,750 47.85%