Dark
Light
System
Security
WESCO INTL INC
WESCO INTL INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q4)
Portfolio Summary: 205 Institutional holders with a total value of $2,286,463,879.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 EdgePoint Investment Group Inc. 6,762,532 295,387,000 12.92%
2 FMR LLC 6,319,640 276,042,000 12.07%
3 Boston Partners 3,800,092 165,988,000 7.26%
4 VANGUARD GROUP INC 2,765,780 120,808,000 5.28%
5 Invesco Ltd. 2,062,344 90,083,000 3.94%
6 DIMENSIONAL FUND ADVISORS LP 1,477,615 64,545,000 2.82%
7 ALLIANCEBERNSTEIN L.P. 1,342,097 62,367,000 2.73%
8 HARRIS ASSOCIATES L P 1,388,341 60,643,000 2.65%
9 Carlson Capital, L.P. 1,375,037 60,062,000 2.63%
10 WELLINGTON MANAGEMENT GROUP LLP 1,359,876 59,400,000 2.60%
11 TimesSquare Capital Management, LLC 1,211,610 52,923,000 2.31%
12 JENNISON ASSOCIATES LLC 1,198,611 52,355,000 2.29%
13 MANUFACTURERS LIFE INSURANCE COMPANY, THE 1,099,906 48,044,000 2.10%
14 BlackRock Institutional Trust Company, N.A. 1,081,587 47,244,000 2.07%
15 COOKE & BIELER LP 1,064,231 46,486,000 2.03%
16 AMERIPRISE FINANCIAL INC 967,678 42,271,000 1.85%
17 FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ 881,203 38,491,000 1.68%
18 GOLDMAN SACHS GROUP INC 819,587 35,800,000 1.57%
19 TIAA CREF INVESTMENT MANAGEMENT LLC 731,500 31,952,000 1.40%
20 BANK OF AMERICA CORP /DE/ 680,438 29,722,000 1.30%
21 COLUMBIA WANGER ASSET MANAGEMENT LLC 602,426 26,314,000 1.15%
22 STATE STREET CORP 564,807 24,669,000 1.08%
23 TOCQUEVILLE ASSET MANAGEMENT L.P. 471,241 20,584,000 0.90%
24 MACQUARIE GROUP LTD 431,003 18,826,000 0.82%
25 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 428,818 18,731,000 0.82%
26 BlackRock Fund Advisors 426,038 18,609,000 0.81%
27 DEUTSCHE BANK AG\ 414,872 18,119,000 0.79%
28 Bank of New York Mellon Corp 405,290 17,704,000 0.77%
29 NORGES BANK 390,171 17,043,000 0.75%
30 TWO SIGMA ADVISERS, LP 368,008 16,075,000 0.70%
31 AQR CAPITAL MANAGEMENT LLC 353,716 15,450,000 0.68%
32 EAGLE ASSET MANAGEMENT INC 343,743 15,014,000 0.66%
33 BASSWOOD CAPITAL MANAGEMENT, L.L.C. 341,529 14,918,000 0.65%
34 ArrowMark Colorado Holdings LLC 340,816 14,887,000 0.65%
35 Olstein Capital Management, L.P. 336,000 14,676,000 0.64%
36 PRUDENTIAL FINANCIAL INC 319,217 13,943,000 0.61%
37 DAVIS SELECTED ADVISERS 297,782 13,007,000 0.57%
38 CANADA PENSION PLAN INVESTMENT BOARD 293,000 12,798,000 0.56%
39 MILLENNIUM MANAGEMENT LLC 275,179 12,020,000 0.53%
40 TWO SIGMA INVESTMENTS, LP 266,484 11,640,000 0.51%
41 FRONTIER CAPITAL MANAGEMENT CO LLC 264,276 11,544,000 0.50%
42 GEODE CAPITAL MANAGEMENT, LLC 256,854 11,218,000 0.49%
43 Tensile Capital Management LP 223,310 9,754,000 0.43%
44 NORTHERN TRUST CORP 218,153 9,530,000 0.42%
45 Polaris Capital Management, LLC 210,200 9,182,000 0.40%
46 Gotham Asset Management, LLC 204,015 8,911,000 0.39%
47 PANAGORA ASSET MANAGEMENT INC 194,228 8,484,000 0.37%
48 ING GROEP NV 183,764 8,027,000 0.35%
49 D. E. Shaw & Co., Inc. 182,545 7,974,000 0.35%
50 WELLS FARGO & COMPANY/MN 172,165 7,520,000 0.33%
Page 1 of 5

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.