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SONUS NETWORKS INC
SONUS NETWORKS INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 132 Institutional holders with a total value of $241,628,329.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 WELLINGTON MANAGEMENT GROUP LLP 4,665,745 36,765,000 15.22%
2 VANGUARD GROUP INC 3,053,605 24,062,000 9.96%
3 BlackRock Institutional Trust Company, N.A. 1,641,265 12,933,000 5.35%
4 PRICE T ROWE ASSOCIATES INC /MD/ 1,535,478 12,100,000 5.01%
5 DIMENSIONAL FUND ADVISORS LP 1,384,712 10,912,000 4.52%
6 BlackRock Fund Advisors 1,259,955 9,928,000 4.11%
7 FIRST TRUST ADVISORS LP 1,098,154 8,653,000 3.58%
8 Walthausen & Co., LLC 937,978 7,391,000 3.06%
9 STATE STREET CORP 924,202 7,282,000 3.01%
10 Empire Capital Management, L.L.C. 874,944 6,895,000 2.85%
11 FMR LLC 763,120 6,013,000 2.49%
12 NORTHERN TRUST CORP 654,295 5,156,000 2.13%
13 AMERIPRISE FINANCIAL INC 525,771 4,143,000 1.71%
14 MILLENNIUM MANAGEMENT LLC 471,303 3,714,000 1.54%
15 NORGES BANK 465,111 3,665,000 1.52%
16 HARBER ASSET MANAGEMENT LLC 419,011 3,302,000 1.37%
17 Bank of New York Mellon Corp 415,521 3,274,000 1.35%
18 D. E. Shaw & Co., Inc. 411,146 3,240,000 1.34%
19 IRONWOOD INVESTMENT MANAGEMENT LLC 410,790 3,237,000 1.34%
20 Horrell Capital Management, Inc. 400,500 3,156,000 1.31%
21 BLACKROCK ADVISORS LLC 391,340 3,084,000 1.28%
22 Granite Investment Partners, LLC 386,816 3,048,000 1.26%
23 DEUTSCHE BANK AG\ 381,192 3,002,000 1.24%
24 KENNEDY CAPITAL MANAGEMENT LLC 350,076 2,759,000 1.14%
25 RENAISSANCE TECHNOLOGIES LLC 323,929 2,553,000 1.06%
26 TWO SIGMA INVESTMENTS, LP 294,283 2,319,000 0.96%
27 TIAA CREF INVESTMENT MANAGEMENT LLC 291,482 2,297,000 0.95%
28 NEW YORK STATE COMMON RETIREMENT FUND 285,479 2,250,000 0.93%
29 STONERIDGE INVESTMENT PARTNERS LLC 277,187 2,184,000 0.90%
30 ROTHSCHILD & CO ASSET MANAGEMENT US INC. 262,123 2,066,000 0.86%
31 IMPAX ASSET MANAGEMENT LLC 257,198 2,027,000 0.84%
32 CITADEL ADVISORS LLC 253,740 2,000,000 0.83%
33 Trexquant Investment LP 231,832 1,826,000 0.76%
34 UNITED SERVICES AUTOMOBILE ASSOCIATION 219,398 1,729,000 0.72%
35 BTG Pactual Global Asset Management Ltd 208,749 1,645,000 0.68%
36 Integre Asset Management, LLC 176,377 1,390,000 0.58%
37 BARCLAYS PLC 178,152 1,246,000 0.52%
38 A.R.T. Advisors, LLC 151,920 1,197,000 0.50%
39 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 150,716 1,188,000 0.49%
40 PDT Partners, LLC 143,422 1,130,000 0.47%
41 CREDIT SUISSE AG/ 139,431 1,098,000 0.45%
42 BlackRock Investment Management, LLC 136,827 1,078,000 0.45%
43 Jefferies Group LLC 133,009 1,048,000 0.43%
44 Alyeska Investment Group, L.P. 127,877 1,008,000 0.42%
45 Invesco Ltd. 109,598 864,000 0.36%
46 K2 PRINCIPAL FUND, L.P. 97,200 766,000 0.32%
47 WELLS FARGO & COMPANY/MN 94,039 741,000 0.31%
48 PARAMETRIC PORTFOLIO ASSOCIATES LLC 92,231 727,000 0.30%
49 SUSQUEHANNA INTERNATIONAL GROUP, LLP 91,000 717,000 0.30% Call
50 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 89,666 707,000 0.29%
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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.