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AMEREN CORP
AMEREN CORP. Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 419 Institutional holders with a total value of $6,314,920,250.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 19,829,653 816,982,000 12.94%
2 STATE STREET CORP 12,219,388 503,435,000 7.97%
3 BlackRock Institutional Trust Company, N.A. 6,274,095 258,493,000 4.09%
4 SYSTEMATIC FINANCIAL MANAGEMENT LP 4,638,437 191,103,000 3.03%
5 Epoch Investment Partners, Inc. 4,619,425 190,320,000 3.01%
6 WELLINGTON MANAGEMENT GROUP LLP 3,840,492 158,227,000 2.51%
7 Neuberger Berman Group LLC 3,774,733 155,518,000 2.46%
8 FIRST MANHATTAN CO. LLC. 3,726,158 153,517,000 2.43%
9 NORTHERN TRUST CORP 3,500,118 144,204,000 2.28%
10 BlackRock Fund Advisors 3,493,270 143,923,000 2.28%
11 Bank of New York Mellon Corp 3,132,591 129,064,000 2.04%
12 AMERIPRISE FINANCIAL INC 2,963,316 122,087,000 1.93%
13 FRANKLIN RESOURCES INC 2,771,375 114,181,000 1.81%
14 FMR LLC 2,719,903 112,060,000 1.77%
15 AMUNDI ASSET MANAGEMENT US, INC. 2,673,276 110,139,000 1.74%
16 PICTET ASSET MANAGEMENT LTD 2,001,243 82,451,000 1.31%
17 MORGAN STANLEY 1,954,398 80,520,000 1.28%
18 GEODE CAPITAL MANAGEMENT, LLC 1,858,546 76,540,000 1.21%
19 BlackRock Group LTD 1,833,491 75,540,000 1.20%
20 Legal & General Group Plc 1,829,631 75,381,000 1.19%
21 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1,783,149 73,466,000 1.16%
22 Capital Research Global Investors 1,660,000 68,392,000 1.08%
23 GOLDMAN SACHS GROUP INC 1,655,945 68,225,000 1.08%
24 JENNISON ASSOCIATES LLC 1,652,908 68,100,000 1.08%
25 PUTNAM INVESTMENTS LLC 1,631,494 67,218,000 1.06%
26 DUFF & PHELPS INVESTMENT MANAGEMENT CO 1,568,805 64,635,000 1.02%
27 FIL Ltd 1,429,707 58,904,000 0.93%
28 AMERICAN CENTURY COMPANIES INC 1,392,435 57,368,000 0.91%
29 Invesco Ltd. 1,269,971 52,323,000 0.83%
30 LSV ASSET MANAGEMENT 1,196,705 49,304,000 0.78%
31 NORGES BANK 1,117,279 46,032,000 0.73%
32 Allianz Asset Management GmbH 1,094,940 45,112,000 0.71%
33 Boston Partners 1,043,607 42,997,000 0.68%
34 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 987,485 40,685,000 0.64%
35 VOYA INVESTMENT MANAGEMENT LLC 982,381 40,474,000 0.64%
36 LOS ANGELES CAPITAL MANAGEMENT LLC 916,572 37,763,000 0.60%
37 TIAA CREF INVESTMENT MANAGEMENT LLC 838,977 34,566,000 0.55%
38 WELLS FARGO & COMPANY/MN 836,519 34,464,000 0.55%
39 GATEWAY INVESTMENT ADVISERS LLC 798,759 32,909,000 0.52%
40 MANUFACTURERS LIFE INSURANCE COMPANY, THE 795,660 32,781,000 0.52%
41 CREDIT SUISSE AG/ 768,903 31,679,000 0.50%
42 PGGM Investments 750,549 30,923,000 0.49%
43 GABELLI FUNDS LLC 744,000 30,653,000 0.49%
44 Sumitomo Mitsui Trust Group, Inc. 716,650 29,526,000 0.47%
45 RENAISSANCE TECHNOLOGIES LLC 705,200 29,054,000 0.46%
46 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 719,500 28,981,000 0.46%
47 NEW YORK STATE COMMON RETIREMENT FUND 682,419 28,116,000 0.45%
48 PRUDENTIAL FINANCIAL INC 676,104 27,855,000 0.44%
49 CANADA PENSION PLAN INVESTMENT BOARD 643,961 26,531,000 0.42%
50 Numeric Investors LLC 627,274 25,844,000 0.41%
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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.