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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 CITADEL ADVISORS LLC 108,837 244,000 0.09%
102 TUDOR INVESTMENT CORP ET AL 108,208 242,000 0.09%
103 INTEGRAL DERIVATIVES, LLC 106,300 238,000 0.09% Put
104 Quantitative Investment Management, LLC 94,400 211,000 0.08%
105 Arizona State Retirement System 93,909 210,000 0.08%
106 PRICE T ROWE ASSOCIATES INC /MD/ 91,400 205,000 0.08%
107 LADENBURG THALMANN FINANCIAL SERVICES INC. 88,659 198,000 0.08%
108 ALLIANCEBERNSTEIN L.P. 81,520 196,000 0.08%
109 VOYA INVESTMENT MANAGEMENT LLC 86,756 194,000 0.07%
110 Virtu KCG Holdings LLC 80,948 181,000 0.07%
111 OPPENHEIMER & CO INC 80,100 179,000 0.07%
112 Focused Wealth Management, Inc 78,932 177,000 0.07%
113 Louisiana State Employees Retirement System 78,600 176,000 0.07%
114 Aperio Group, LLC 78,093 175,000 0.07% SH
115 BLACKROCK ADVISORS LLC 78,070 175,000 0.07%
116 THRIVENT FINANCIAL FOR LUTHERANS 76,034 170,000 0.07%
117 MILLENNIUM MANAGEMENT LLC 75,795 170,000 0.07%
118 Dynamic Capital Management Ltd 75,494 169,000 0.07%
119 LAZARD ASSET MANAGEMENT LLC 74,445 166,000 0.06%
120 Dynamic Technology Lab Private Ltd 63,501 142,000 0.05%
121 TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 63,300 142,000 0.05%
122 PEAK6 Group LLC 57,500 129,000 0.05% Put
123 STRATEGIC INVESTMENT MANAGEMENT, LLC 57,823 129,000 0.05%
124 HAP Trading, LLC 614,800 121,000 0.05% Call
125 First Allied Advisory Services, Inc. 48,939 113,000 0.04%
126 CUTLER GROUP LLC / CA 47,791 107,000 0.04%
127 Spot Trading L.L.C 47,779 107,000 0.04%
128 CAPSTONE ASSET MANAGEMENT CO 47,528 106,000 0.04%
129 HSBC HOLDINGS PLC 46,446 104,000 0.04%
130 JANE STREET GROUP, LLC 44,600 100,000 0.04% Call
131 GUGGENHEIM CAPITAL LLC 43,560 98,000 0.04%
132 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 41,350 93,000 0.04%
133 IFP ADVISORS, INC 38,164 85,000 0.03%
134 Walleye Trading LLC 37,400 84,000 0.03% Call
135 BlueCrest Capital Management Ltd 37,266 83,000 0.03%
136 Investors Capital Advisory Services 36,900 82,000 0.03%
137 Municipal Employees' Retirement System of Michigan 36,070 81,000 0.03%
138 Rotella Capital Management, Inc. 34,900 78,000 0.03%
139 Bison Wealth, LLC 34,572 77,000 0.03%
140 ROYAL BANK OF CANADA 32,535 73,000 0.03%
141 ProShare Advisors LLC 30,296 68,000 0.03%
142 MASON STREET ADVISORS, LLC 28,665 64,000 0.02%
143 Walleye Trading LLC 28,070 63,000 0.02%
144 PROFUND ADVISORS LLC 27,739 62,000 0.02%
145 Stratos Wealth Partners, LTD. 26,158 59,000 0.02%
146 INTEGRAL DERIVATIVES, LLC 25,300 57,000 0.02% Call
147 UBS Group AG 25,300 57,000 0.02% Put
148 CIBC BANK USA 25,000 56,000 0.02%
149 UBS Group AG 23,926 54,000 0.02% Call
150 PineBridge Investments, L.P. 23,872 54,000 0.02%
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.