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WESCO INTL INC
WESCO INTL INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 211 Institutional holders with a total value of $3,879,776,495.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 3,968,394 277,351,000 7.15%
2 Boston Partners 3,254,160 227,434,000 5.86%
3 Invesco Ltd. 2,972,286 207,735,000 5.35%
4 VANGUARD GROUP INC 2,707,584 189,233,000 4.88%
5 WELLINGTON MANAGEMENT GROUP LLP 2,478,666 173,234,000 4.47%
6 EdgePoint Investment Group Inc. 2,306,557 161,199,000 4.15%
7 JANUS HENDERSON INVESTORS US LLC 1,996,292 139,521,000 3.60%
8 AMERIPRISE FINANCIAL INC 1,924,992 134,526,000 3.47%
9 COLUMBIA WANGER ASSET MANAGEMENT LLC 1,821,100 127,277,000 3.28%
10 HARRIS ASSOCIATES L P 1,784,145 124,694,000 3.21%
11 JENNISON ASSOCIATES LLC 1,774,507 124,020,000 3.20%
12 TimesSquare Capital Management, LLC 1,773,540 123,953,000 3.19%
13 BlackRock Institutional Trust Company, N.A. 1,236,406 86,412,000 2.23%
14 ALLIANCEBERNSTEIN L.P. 1,229,979 85,963,000 2.22%
15 Gotham Asset Management, LLC 1,095,152 76,540,000 1.97%
16 ValueAct Holdings, L.P. 1,064,800 74,419,000 1.92%
17 VOYA INVESTMENT MANAGEMENT LLC 1,041,349 72,779,000 1.88%
18 ATLANTIC INVESTMENT MANAGEMENT, INC. 997,582 69,721,000 1.80%
19 GOLDMAN SACHS GROUP INC 993,329 69,424,000 1.79%
20 DIMENSIONAL FUND ADVISORS LP 936,778 65,471,000 1.69%
21 COOKE & BIELER LP 913,728 63,860,000 1.65%
22 CRAMER ROSENTHAL MCGLYNN LLC 886,426 61,952,000 1.60%
23 TIAA CREF INVESTMENT MANAGEMENT LLC 812,834 56,809,000 1.46%
24 BlackRock Group LTD 743,851 51,988,000 1.34%
25 WESTWOOD HOLDINGS GROUP INC 644,357 45,035,000 1.16%
26 ArrowMark Colorado Holdings LLC 625,715 43,731,000 1.13%
27 STATE STREET CORP 621,584 43,445,000 1.12%
28 TOCQUEVILLE ASSET MANAGEMENT L.P. 583,341 40,770,000 1.05%
29 FRONTIER CAPITAL MANAGEMENT CO LLC 579,561 40,506,000 1.04%
30 FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ 523,740 36,604,000 0.94%
31 Carlson Capital, L.P. 429,000 29,983,000 0.77%
32 GUGGENHEIM CAPITAL LLC 403,452 28,197,000 0.73%
33 BlackRock Fund Advisors 389,142 27,197,000 0.70%
34 NORGES BANK 376,365 26,304,000 0.68%
35 BASSWOOD CAPITAL MANAGEMENT, L.L.C. 359,818 25,148,000 0.65%
36 LOOMIS SAYLES & CO L P 336,966 23,551,000 0.61%
37 Bank of New York Mellon Corp 305,815 21,372,000 0.55%
38 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 301,789 21,092,033 0.54%
39 DAVIS SELECTED ADVISERS 292,311 20,429,000 0.53%
40 FIDUCIARY MANAGEMENT ASSOCIATES LLC 270,755 18,923,000 0.49%
41 GEODE CAPITAL MANAGEMENT, LLC 264,738 18,501,000 0.48%
42 RENAISSANCE TECHNOLOGIES LLC 253,000 17,682,000 0.46%
43 MILLENNIUM MANAGEMENT LLC 252,280 17,632,000 0.45%
44 DEUTSCHE BANK AG\ 245,200 17,135,000 0.44%
45 MANUFACTURERS LIFE INSURANCE COMPANY, THE 242,891 16,976,000 0.44%
46 Tensile Capital Management LP 241,520 16,880,000 0.44%
47 MANAGED ACCOUNT ADVISORS LLC 240,116 16,782,000 0.43%
48 Olstein Capital Management, L.P. 239,000 16,704,000 0.43%
49 BlackRock Japan Co. Ltd 222,681 15,563,000 0.40%
50 NORTHERN TRUST CORP 205,249 14,345,000 0.37%
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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.