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OM GROUP INC
OM GROUP INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q3)
Portfolio Summary: 169 Institutional holders with a total value of $891,253,008.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 DIMENSIONAL FUND ADVISORS LP 2,500,067 82,228,000 9.23%
2 VANGUARD GROUP INC 2,250,464 74,018,000 8.30%
3 BlackRock Fund Advisors 1,760,131 57,891,000 6.50%
4 AQR ARBITRAGE LLC 1,671,795 54,985,000 6.17%
5 ALPINE ASSOCIATES MANAGEMENT INC. 1,144,979 37,658,000 4.23%
6 GLAZER CAPITAL, LLC 1,082,053 35,589,000 3.99%
7 ADVISORY RESEARCH INC 1,052,566 34,619,000 3.88%
8 Pentwater Capital Management LP 975,000 32,068,000 3.60%
9 NORTHERN TRUST CORP 972,964 32,001,000 3.59%
10 JPMORGAN CHASE & CO 805,496 26,492,000 2.97%
11 BlackRock Institutional Trust Company, N.A. 744,993 24,503,000 2.75%
12 OXFORD ASSET MANAGEMENT LLP 600,000 19,734,000 2.21%
13 STATE STREET CORP 573,394 18,858,000 2.12%
14 DEUTSCHE BANK AG\ 515,873 16,964,000 1.90%
15 NORGES BANK 455,676 14,987,000 1.68%
16 MORGAN STANLEY 435,669 14,330,000 1.61%
17 GABELLI FUNDS LLC 380,600 12,518,000 1.40%
18 Bank of New York Mellon Corp 375,550 12,351,000 1.39%
19 COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 367,647 12,092,000 1.36%
20 GABELLI & Co INVESTMENT ADVISERS, INC. 361,919 11,904,000 1.34%
21 COASTLAND CAPITAL LLC 305,278 10,041,000 1.13%
22 SYSTEMATIC FINANCIAL MANAGEMENT LP 258,503 8,502,000 0.95%
23 D. E. Shaw & Co., Inc. 243,329 8,003,000 0.90%
24 Kellner Capital, LLC 229,000 7,532,000 0.85%
25 CREDIT SUISSE AG/ 199,175 6,550,000 0.73%
26 PARAMETRIC PORTFOLIO ASSOCIATES LLC 194,990 6,413,000 0.72%
27 PRINCIPAL FINANCIAL GROUP INC 192,550 6,333,000 0.71%
28 Kassirer Asset Management Corp 181,035 5,954,000 0.67%
29 Alberta Investment Management Corp 180,000 5,920,000 0.66%
30 LUMINUS MANAGEMENT LLC 177,762 5,847,000 0.66%
31 GEODE CAPITAL MANAGEMENT, LLC 194,925 5,802,000 0.65%
32 SG Americas Securities, LLC 174,814 5,750,000 0.65%
33 Allianz Asset Management GmbH 164,040 5,395,000 0.61%
34 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 157,313 5,175,000 0.58%
35 GOLDMAN SACHS GROUP INC 151,741 4,991,000 0.56%
36 Candriam S.C.A. 147,725 4,859,000 0.55%
37 COMERICA BANK 147,710 4,858,000 0.55%
38 LMR Partners LLP 147,000 4,834,000 0.54%
39 AMERIPRISE FINANCIAL INC 146,668 4,825,000 0.54%
40 RENAISSANCE TECHNOLOGIES LLC 143,800 4,730,000 0.53%
41 LONGFELLOW INVESTMENT MANAGEMENT CO LLC 140,000 4,605,000 0.52%
42 MARSHALL WACE, LLP 139,318 4,582,000 0.51%
43 BlackRock Investment Management, LLC 125,307 4,121,000 0.46%
44 BANK OF AMERICA CORP /DE/ 123,622 4,066,000 0.46%
45 GAMCO INVESTORS, INC. ET AL 122,400 4,026,000 0.45%
46 QS Investors, LLC 118,733 3,905,000 0.44%
47 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 113,584 3,736,000 0.42%
48 BRIDGEWAY CAPITAL MANAGEMENT, LLC 108,300 3,562,000 0.40%
49 Walleye Trading LLC 103,652 3,409,000 0.38%
50 RUSSELL FRANK CO/ 102,960 3,386,000 0.38%
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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.