Dark
Light
System
Security
WEST CORP
WEST CORP. Institutional holdings reported to the SEC.

Institutional Holders (2016Q4)
Portfolio Summary: 150 Institutional holders with a total value of $1,590,136,934.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 THOMAS H LEE PARTNERS LP 18,099,239 448,137,000 28.18%
2 FMR LLC 6,876,946 170,274,000 10.71%
3 VANGUARD GROUP INC 5,126,867 126,940,000 7.98%
4 QUADRANGLE GP INVESTORS LLC 3,781,961 93,641,000 5.89%
5 JENNISON ASSOCIATES LLC 3,232,326 80,032,000 5.03%
6 Allianz Asset Management GmbH 2,045,856 50,656,000 3.19%
7 West Family Investments, Inc. 1,591,636 39,409,000 2.48%
8 JPMORGAN CHASE & CO 1,418,662 35,126,000 2.21%
9 BlackRock Fund Advisors 1,355,602 33,565,000 2.11%
10 DIMENSIONAL FUND ADVISORS LP 1,306,811 32,358,000 2.03%
11 PEREGRINE CAPITAL MANAGEMENT INC /MN/ 1,267,658 31,387,000 1.97%
12 BlackRock Institutional Trust Company, N.A. 1,230,628 30,470,000 1.92%
13 NORGES BANK 1,208,855 29,931,000 1.88%
14 PALISADE CAPITAL MANAGEMENT, LP 1,053,523 26,085,000 1.64%
15 TimesSquare Capital Management, LLC 982,284 24,321,000 1.53%
16 STATE STREET CORP 793,131 19,634,000 1.23%
17 Bank of New York Mellon Corp 745,928 18,469,000 1.16%
18 BANK OF AMERICA CORP /DE/ 711,905 17,627,000 1.11%
19 PRUDENTIAL FINANCIAL INC 539,997 13,370,000 0.84%
20 NORTHERN TRUST CORP 533,629 13,212,000 0.83%
21 AMERICAN CENTURY COMPANIES INC 502,759 12,448,000 0.78%
22 GEODE CAPITAL MANAGEMENT, LLC 475,053 11,762,000 0.74%
23 WELLINGTON MANAGEMENT GROUP LLP 448,723 11,110,000 0.70%
24 LOOMIS SAYLES & CO L P 435,160 10,775,000 0.68%
25 CITADEL ADVISORS LLC 398,034 9,855,000 0.62%
26 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 359,412 8,900,000 0.56%
27 NICHOLAS COMPANY, INC. 324,170 8,026,000 0.50%
28 PRINCIPAL FINANCIAL GROUP INC 302,917 7,500,000 0.47%
29 PANAGORA ASSET MANAGEMENT INC 275,967 6,833,000 0.43%
30 Invesco Ltd. 252,177 6,244,000 0.39%
31 KENNEDY CAPITAL MANAGEMENT LLC 247,890 6,138,000 0.39%
32 FEDERATED HERMES, INC. 235,800 5,838,000 0.37%
33 DEUTSCHE BANK AG\ 226,782 5,614,000 0.35%
34 MORGAN STANLEY 225,052 5,572,000 0.35%
35 Brandywine Global Investment Management, LLC 224,898 5,569,000 0.35%
36 PRICE T ROWE ASSOCIATES INC /MD/ 224,619 5,562,000 0.35%
37 WELLS FARGO & COMPANY/MN 193,722 4,796,000 0.30%
38 Spark Investment Management LLC 189,700 4,696,000 0.30%
39 TIAA CREF INVESTMENT MANAGEMENT LLC 187,125 4,633,000 0.29%
40 BlackRock Investment Management, LLC 177,431 4,393,000 0.28%
41 RENAISSANCE TECHNOLOGIES LLC 171,500 4,246,000 0.27%
42 TWO SIGMA ADVISERS, LP 153,930 3,811,000 0.24%
43 Zebra Capital Management LLC 146,645 3,631,000 0.23%
44 CREDIT SUISSE AG/ 146,398 3,624,000 0.23%
45 PARAMETRIC PORTFOLIO ASSOCIATES LLC 137,785 3,412,000 0.21%
46 D. E. Shaw & Co., Inc. 133,171 3,298,000 0.21%
47 HEARTLAND ADVISORS INC 123,587 3,060,000 0.19%
48 CITIGROUP INC 119,161 2,950,000 0.19%
49 MARTINGALE ASSET MANAGEMENT L P 115,168 2,852,000 0.18%
50 GUGGENHEIM CAPITAL LLC 114,825 2,843,000 0.18%
Page 1 of 3

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.