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
151 CREDIT SUISSE AG/ 250,500 561,000 0.22% Put
152 Sippican Capital Advisors 267,425 599,000 0.23%
153 TEACHERS ADVISORS, LLC 269,307 603,000 0.23%
154 WELLS FARGO & COMPANY/MN 293,377 657,000 0.25%
155 PARAMETRIC PORTFOLIO ASSOCIATES LLC 299,521 671,000 0.26%
156 Pomelo Capital LLC 300,000 672,000 0.26%
157 RHUMBLINE ADVISERS 300,493 673,000 0.26%
158 ROYAL BANK OF CANADA 315,900 708,000 0.27% Put
159 SG Americas Securities, LLC 322,448 722,000 0.28%
160 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 329,507 738,000 0.28%
161 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 332,934 746,000 0.29%
162 GOLDMAN SACHS GROUP INC 377,700 846,000 0.33% Call
163 Graham Capital Management, L.P. 382,400 857,000 0.33% Put
164 Legal & General Group Plc 395,408 884,000 0.34%
165 MAZAMA CAPITAL MANAGEMENT INC 404,870 907,000 0.35%
166 PRUDENTIAL FINANCIAL INC 406,029 910,000 0.35%
167 CSS LLC/IL 411,500 921,000 0.36% Put
168 Gotham Asset Management, LLC 416,658 933,000 0.36%
169 TIAA CREF INVESTMENT MANAGEMENT LLC 475,217 1,064,000 0.41%
170 Laurion Capital Management LP 530,350 1,188,000 0.46%
171 Parallax Volatility Advisers, L.P. 549,800 1,232,000 0.48% Put
172 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 554,750 1,243,000 0.48%
173 BRIDGEWAY CAPITAL MANAGEMENT, LLC 583,400 1,307,000 0.50%
174 BANK OF AMERICA CORP /DE/ 602,500 1,350,000 0.52% Call
175 CREDIT SUISSE AG/ 650,476 1,457,000 0.56%
176 DEUTSCHE BANK AG\ 697,720 1,561,000 0.60%
177 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 720,408 1,614,000 0.62%
178 BARCLAYS PLC 816,500 1,632,000 0.63% Put
179 BlackRock Investment Management, LLC 738,543 1,654,000 0.64%
180 CREDIT SUISSE AG/ 750,000 1,680,000 0.65% Call
181 DIMENSIONAL FUND ADVISORS LP 760,890 1,704,000 0.66%
182 CITIGROUP INC 775,509 1,737,000 0.67%
183 AMERIPRISE FINANCIAL INC 811,917 1,819,000 0.70%
184 SUSQUEHANNA INTERNATIONAL GROUP, LLP 826,500 1,851,000 0.71% Call
185 Laurion Capital Management LP 865,000 1,938,000 0.75% Call
186 State of New Jersey Common Pension Fund D 1,000,000 2,240,000 0.86%
187 WOLVERINE ASSET MANAGEMENT LLC 16,344 2,273,000 0.88% Put
188 D. E. Shaw & Co., Inc. 1,035,960 2,321,000 0.90%
189 GEODE CAPITAL MANAGEMENT, LLC 1,055,587 2,364,000 0.91%
190 BRIGADE CAPITAL MANAGEMENT, LP 11,000 2,464,000 0.95% Call
191 PRINCIPAL FINANCIAL GROUP INC 1,202,650 2,694,000 1.04%
192 CITIGROUP INC 1,312,600 2,941,000 1.13% Call
193 GOLDMAN SACHS GROUP INC 1,437,865 3,221,000 1.24%
194 CITIGROUP INC 1,513,500 3,391,000 1.31% Put
195 Spark Investment Management LLC 1,527,000 3,420,000 1.32%
196 OppenheimerFunds, Inc. 1,673,533 3,749,000 1.45%
197 COMMERZBANK AKTIENGESELLSCHAFT /FI 1,722,992 3,860,000 1.49%
198 ROYCE & ASSOCIATES LP 1,735,609 3,888,000 1.50%
199 BANK OF AMERICA CORP /DE/ 1,736,400 3,890,000 1.50% Put
200 GOLDMAN SACHS GROUP INC 1,780,000 3,987,000 1.54% Put
Page 4 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.