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
1 VANGUARD GROUP INC 13,461,080 30,152,000 11.63%
2 BlackRock Fund Advisors 11,027,406 24,701,000 9.53%
3 STATE STREET CORP 8,313,335 18,620,000 7.18%
4 Bocage Capital, LLC 5,900,000 13,216,000 5.10% Call
5 BlackRock Institutional Trust Company, N.A. 4,486,968 10,051,000 3.88%
6 SUSQUEHANNA INTERNATIONAL GROUP, LLP 4,146,300 9,287,000 3.58% Put
7 BANK OF AMERICA CORP /DE/ 3,501,571 7,843,000 3.02%
8 Assured Investment Management LLC 3,750,000 7,650,000 2.95% Put
9 Visium Asset Management, LP 3,000,000 6,720,000 2.59% Put
10 MORGAN STANLEY 2,550,698 5,714,000 2.20%
11 Creative Planning 2,079,472 4,658,000 1.80%
12 Jefferies Group LLC 2,003,700 4,488,000 1.73% Put
13 Bank of New York Mellon Corp 1,988,519 4,455,000 1.72%
14 NORTHERN TRUST CORP 1,847,158 4,138,000 1.60%
15 GOLDMAN SACHS GROUP INC 1,780,000 3,987,000 1.54% Put
16 BANK OF AMERICA CORP /DE/ 1,736,400 3,890,000 1.50% Put
17 ROYCE & ASSOCIATES LP 1,735,609 3,888,000 1.50%
18 COMMERZBANK AKTIENGESELLSCHAFT /FI 1,722,992 3,860,000 1.49%
19 OppenheimerFunds, Inc. 1,673,533 3,749,000 1.45%
20 Spark Investment Management LLC 1,527,000 3,420,000 1.32%
21 CITIGROUP INC 1,513,500 3,391,000 1.31% Put
22 GOLDMAN SACHS GROUP INC 1,437,865 3,221,000 1.24%
23 CITIGROUP INC 1,312,600 2,941,000 1.13% Call
24 PRINCIPAL FINANCIAL GROUP INC 1,202,650 2,694,000 1.04%
25 BRIGADE CAPITAL MANAGEMENT, LP 11,000 2,464,000 0.95% Call
26 GEODE CAPITAL MANAGEMENT, LLC 1,055,587 2,364,000 0.91%
27 D. E. Shaw & Co., Inc. 1,035,960 2,321,000 0.90%
28 WOLVERINE ASSET MANAGEMENT LLC 16,344 2,273,000 0.88% Put
29 State of New Jersey Common Pension Fund D 1,000,000 2,240,000 0.86%
30 Laurion Capital Management LP 865,000 1,938,000 0.75% Call
31 SUSQUEHANNA INTERNATIONAL GROUP, LLP 826,500 1,851,000 0.71% Call
32 AMERIPRISE FINANCIAL INC 811,917 1,819,000 0.70%
33 CITIGROUP INC 775,509 1,737,000 0.67%
34 DIMENSIONAL FUND ADVISORS LP 760,890 1,704,000 0.66%
35 CREDIT SUISSE AG/ 750,000 1,680,000 0.65% Call
36 BlackRock Investment Management, LLC 738,543 1,654,000 0.64%
37 BARCLAYS PLC 816,500 1,632,000 0.63% Put
38 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 720,408 1,614,000 0.62%
39 DEUTSCHE BANK AG\ 697,720 1,561,000 0.60%
40 CREDIT SUISSE AG/ 650,476 1,457,000 0.56%
41 BANK OF AMERICA CORP /DE/ 602,500 1,350,000 0.52% Call
42 BRIDGEWAY CAPITAL MANAGEMENT, LLC 583,400 1,307,000 0.50%
43 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 554,750 1,243,000 0.48%
44 Parallax Volatility Advisers, L.P. 549,800 1,232,000 0.48% Put
45 Laurion Capital Management LP 530,350 1,188,000 0.46%
46 TIAA CREF INVESTMENT MANAGEMENT LLC 475,217 1,064,000 0.41%
47 Gotham Asset Management, LLC 416,658 933,000 0.36%
48 CSS LLC/IL 411,500 921,000 0.36% Put
49 PRUDENTIAL FINANCIAL INC 406,029 910,000 0.35%
50 MAZAMA CAPITAL MANAGEMENT INC 404,870 907,000 0.35%
Page 1 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.