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

Institutional Holders (2015Q2)
Portfolio Summary: 229 Institutional holders with a total value of $3,756,814,332.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 4,383,635 300,893,000 8.01%
2 Boston Partners 3,445,572 236,504,000 6.30%
3 Invesco Ltd. 2,924,011 200,703,000 5.34%
4 VANGUARD GROUP INC 2,771,258 190,219,000 5.06%
5 EdgePoint Investment Group Inc. 2,383,229 163,585,000 4.35%
6 WELLINGTON MANAGEMENT GROUP LLP 2,313,820 158,820,000 4.23%
7 ATLANTIC INVESTMENT MANAGEMENT, INC. 2,248,553 154,340,678 4.11%
8 JANUS HENDERSON INVESTORS US LLC 1,955,962 134,257,000 3.57%
9 HARRIS ASSOCIATES L P 1,754,845 120,453,000 3.21%
10 JENNISON ASSOCIATES LLC 1,686,234 115,743,000 3.08%
11 TimesSquare Capital Management, LLC 1,607,150 110,315,000 2.94%
12 AMERIPRISE FINANCIAL INC 1,606,822 110,272,000 2.94%
13 ALLIANCEBERNSTEIN L.P. 1,261,229 86,571,000 2.30%
14 DIMENSIONAL FUND ADVISORS LP 1,147,240 78,749,000 2.10%
15 Carlson Capital, L.P. 1,125,000 77,220,000 2.06%
16 BlackRock Institutional Trust Company, N.A. 1,118,577 76,779,000 2.04%
17 COLUMBIA WANGER ASSET MANAGEMENT LLC 1,102,901 75,703,000 2.02%
18 GOLDMAN SACHS GROUP INC 987,608 67,789,000 1.80%
19 COOKE & BIELER LP 892,618 61,269,000 1.63%
20 CRAMER ROSENTHAL MCGLYNN LLC 746,203 51,219,000 1.36%
21 BlackRock Group LTD 697,045 47,845,000 1.27%
22 FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ 682,808 46,868,000 1.25%
23 ArrowMark Colorado Holdings LLC 681,264 46,762,000 1.24%
24 Gotham Asset Management, LLC 624,867 42,891,000 1.14%
25 STATE STREET CORP 598,898 41,109,000 1.09%
26 WESTWOOD HOLDINGS GROUP INC 596,379 40,935,000 1.09%
27 FRONTIER CAPITAL MANAGEMENT CO LLC 593,576 40,743,000 1.08%
28 TOCQUEVILLE ASSET MANAGEMENT L.P. 584,041 40,089,000 1.07%
29 TIAA CREF INVESTMENT MANAGEMENT LLC 528,760 36,294,000 0.97%
30 CITADEL ADVISORS LLC 438,244 30,081,000 0.80%
31 MACQUARIE GROUP LTD 436,047 29,930,000 0.80%
32 BlackRock Fund Advisors 395,874 27,173,000 0.72%
33 NORGES BANK 390,171 26,781,000 0.71%
34 BASSWOOD CAPITAL MANAGEMENT, L.L.C. 353,757 24,282,000 0.65%
35 MANUFACTURERS LIFE INSURANCE COMPANY, THE 331,091 22,726,000 0.60%
36 CAISSE DE DEPOT ET PLACEMENT DU QUEBEC 330,000 22,651,000 0.60%
37 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 319,313 21,917,644 0.58%
38 GUGGENHEIM CAPITAL LLC 313,219 21,500,000 0.57%
39 Bank of New York Mellon Corp 304,198 20,881,000 0.56%
40 FIDUCIARY MANAGEMENT ASSOCIATES LLC 298,000 20,454,000 0.54%
41 DAVIS SELECTED ADVISERS 291,456 20,006,000 0.53%
42 GEODE CAPITAL MANAGEMENT, LLC 246,333 16,907,000 0.45%
43 FEDERATED HERMES, INC. 241,282 16,562,000 0.44%
44 MANAGED ACCOUNT ADVISORS LLC 235,131 16,139,000 0.43%
45 Olstein Capital Management, L.P. 232,000 15,924,000 0.42%
46 BlackRock Japan Co. Ltd 221,688 15,217,000 0.41%
47 Tensile Capital Management LP 201,520 13,832,000 0.37%
48 BANK OF MONTREAL /CAN/ 183,111 12,568,000 0.33%
49 LOOMIS SAYLES & CO L P 181,614 12,466,000 0.33%
50 NORTHERN TRUST CORP 173,363 11,900,000 0.32%
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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.