Dark
Light
System
Security
AK STL HLDG CORP
AK STL HLDG CORP. Institutional holdings reported to the SEC.

Institutional Holders (2015Q4)
Portfolio Summary: 214 Institutional holders with a total value of $259,278,730.
#
Manager Name
Shares
Value ($)
%
Options
Notes
101 BLACKROCK ADVISORS LLC 78,070 175,000 0.07%
102 Louisiana State Employees Retirement System 78,600 176,000 0.07%
103 Focused Wealth Management, Inc 78,932 177,000 0.07%
104 OPPENHEIMER & CO INC 80,100 179,000 0.07%
105 Virtu KCG Holdings LLC 80,948 181,000 0.07%
106 VOYA INVESTMENT MANAGEMENT LLC 86,756 194,000 0.07%
107 ALLIANCEBERNSTEIN L.P. 81,520 196,000 0.08%
108 LADENBURG THALMANN FINANCIAL SERVICES INC. 88,659 198,000 0.08%
109 PRICE T ROWE ASSOCIATES INC /MD/ 91,400 205,000 0.08%
110 Arizona State Retirement System 93,909 210,000 0.08%
111 Quantitative Investment Management, LLC 94,400 211,000 0.08%
112 INTEGRAL DERIVATIVES, LLC 106,300 238,000 0.09% Put
113 TUDOR INVESTMENT CORP ET AL 108,208 242,000 0.09%
114 CITADEL ADVISORS LLC 108,837 244,000 0.09%
115 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 114,952 257,000 0.10%
116 Nationwide Fund Advisors 117,034 262,000 0.10%
117 MANUFACTURERS LIFE INSURANCE COMPANY, THE 118,038 264,000 0.10%
118 Carlson Capital, L.P. 4,500 266,000 0.10% Call
119 Spot Trading L.L.C 120,300 269,000 0.10% Put
120 PUBLIC SECTOR PENSION INVESTMENT BOARD 122,550 275,000 0.11%
121 CUTLER GROUP LLC / CA 58,600 278,000 0.11% Put
122 METROPOLITAN LIFE INSURANCE CO/NY 125,780 282,000 0.11%
123 State of Tennessee, Department of Treasury 137,000 307,000 0.12%
124 NOMURA HOLDINGS INC 138,894 310,000 0.12%
125 MENTA CAPITAL LLC 140,200 314,000 0.12%
126 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 140,395 314,000 0.12%
127 PNC FINANCIAL SERVICES GROUP, INC. 143,918 323,000 0.12%
128 HBK INVESTMENTS L P 145,843 327,000 0.13%
129 TEXAS PERMANENT SCHOOL FUND CORP 147,176 330,000 0.13%
130 A.R.T. Advisors, LLC 148,817 333,000 0.13%
131 Jefferies Group LLC 150,000 336,000 0.13% Call
132 LPL Financial LLC 146,330 356,000 0.14%
133 NEW YORK STATE COMMON RETIREMENT FUND 162,300 364,000 0.14%
134 AMERICAN INTERNATIONAL GROUP, INC. 164,965 369,000 0.14%
135 Squarepoint Ops LLC 171,573 384,000 0.15%
136 Spot Trading L.L.C 175,700 394,000 0.15% Call
137 UBS Group AG 177,672 398,000 0.15%
138 BARCLAYS PLC 208,500 417,000 0.16% Call
139 COMERICA BANK 179,846 419,000 0.16%
140 VAN ECK ASSOCIATES CORP 187,188 419,000 0.16%
141 BARCLAYS PLC 212,852 426,000 0.16%
142 Walleye Trading LLC 197,000 441,000 0.17% Put
143 ROYAL BANK OF CANADA 200,000 448,000 0.17% Call
144 BlackRock Group LTD 215,840 483,000 0.19%
145 HAP Trading, LLC 138,600 527,000 0.20% Put
146 Invesco Ltd. 235,721 528,000 0.20%
147 Swiss National Bank 236,700 530,000 0.20%
148 SUSQUEHANNA INTERNATIONAL GROUP, LLP 238,135 533,000 0.21%
149 D.C. Capital Advisors, Ltd 250,000 560,000 0.22%
150 Laurion Capital Management LP 250,000 560,000 0.22% Put
Page 3 of 5

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.