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

Institutional Holders (2015Q1)
Portfolio Summary: 445 Institutional holders with a total value of $6,769,989,870.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 19,846,561 837,525,000 12.37%
2 STATE STREET CORP 12,477,759 526,567,000 7.78%
3 MILLENNIUM MANAGEMENT LLC 6,867,641 289,814,000 4.28%
4 Epoch Investment Partners, Inc. 6,549,059 276,371,000 4.08%
5 BlackRock Institutional Trust Company, N.A. 6,455,781 272,434,000 4.02%
6 FRANKLIN RESOURCES INC 5,913,570 249,553,000 3.69%
7 LAZARD ASSET MANAGEMENT LLC 4,372,042 184,500,000 2.73%
8 BlackRock Fund Advisors 4,087,023 172,472,000 2.55%
9 FIRST MANHATTAN CO. LLC. 3,365,184 142,010,000 2.10%
10 WELLINGTON MANAGEMENT GROUP LLP 3,273,253 138,131,000 2.04%
11 NORTHERN TRUST CORP 3,185,241 134,416,000 1.99%
12 Bank of New York Mellon Corp 3,036,840 128,155,000 1.89%
13 SYSTEMATIC FINANCIAL MANAGEMENT LP 2,564,871 108,237,000 1.60%
14 AMERIPRISE FINANCIAL INC 2,309,553 97,462,000 1.44%
15 BlackRock Group LTD 2,101,827 88,696,000 1.31%
16 GEODE CAPITAL MANAGEMENT, LLC 1,921,909 80,978,000 1.20%
17 GUGGENHEIM CAPITAL LLC 1,884,399 79,521,000 1.17%
18 DUFF & PHELPS INVESTMENT MANAGEMENT CO 1,800,000 75,960,000 1.12%
19 JENNISON ASSOCIATES LLC 1,756,455 74,122,000 1.09%
20 FIL Ltd 1,742,806 73,546,000 1.09%
21 Legal & General Group Plc 1,738,224 73,360,000 1.08%
22 Capital Research Global Investors 1,660,000 70,052,000 1.03%
23 AXA S.A. 1,620,335 68,378,000 1.01%
24 Allianz Asset Management GmbH 1,587,515 66,993,000 0.99%
25 NORGES BANK 1,572,422 66,356,000 0.98%
26 Boston Partners 1,522,806 64,262,000 0.95%
27 MORGAN STANLEY 1,497,461 63,190,000 0.93%
28 JANUS HENDERSON INVESTORS US LLC 1,491,775 62,953,000 0.93%
29 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 1,453,800 61,350,360 0.91%
30 LSV ASSET MANAGEMENT 1,317,190 55,585,000 0.82%
31 GOLDMAN SACHS GROUP INC 1,187,383 50,108,000 0.74%
32 LUMINUS MANAGEMENT LLC 1,133,389 47,829,000 0.71%
33 PICTET ASSET MANAGEMENT LTD 1,140,841 46,706,000 0.69%
34 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 1,034,349 43,648,000 0.64%
35 VOYA INVESTMENT MANAGEMENT LLC 1,023,108 43,175,000 0.64%
36 AMUNDI ASSET MANAGEMENT US, INC. 967,847 40,843,000 0.60%
37 PGGM Investments 950,044 40,092,000 0.59%
38 TIAA CREF INVESTMENT MANAGEMENT LLC 948,381 40,022,000 0.59%
39 AQR CAPITAL MANAGEMENT LLC 854,019 36,039,000 0.53%
40 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 778,300 35,965,000 0.53%
41 MANUFACTURERS LIFE INSURANCE COMPANY, THE 794,647 33,534,000 0.50%
42 PUTNAM INVESTMENTS LLC 793,186 33,472,000 0.49%
43 RAYMOND JAMES & ASSOCIATES 767,415 32,385,000 0.48%
44 FIRST TRUST ADVISORS LP 744,410 31,414,000 0.46%
45 Sumitomo Mitsui Trust Group, Inc. 730,279 30,818,000 0.46%
46 GATEWAY INVESTMENT ADVISERS LLC 726,016 30,638,000 0.45%
47 UNITED SERVICES AUTOMOBILE ASSOCIATION 703,707 29,696,000 0.44%
48 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 680,144 28,703,000 0.42%
49 DEUTSCHE BANK AG\ 664,114 28,023,000 0.41%
50 NEW YORK STATE COMMON RETIREMENT FUND 643,419 27,152,000 0.40%
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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.