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RAMBUS INC DEL COM
RAMBUS INC DEL COM. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 144 Institutional holders with a total value of $1,029,322,069.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 WADDELL & REED FINANCIAL INC 11,708,506 147,234,000 14.30%
2 FMR LLC 10,738,700 135,039,000 13.12%
3 PRIMECAP MANAGEMENT CO/CA/ 8,342,272 104,946,000 10.20%
4 VANGUARD GROUP INC 7,169,620 90,159,000 8.76%
5 OAK RIDGE INVESTMENTS LLC 3,630,743 45,657,000 4.44%
6 BlackRock Fund Advisors 2,967,607 37,318,000 3.63%
7 BlackRock Institutional Trust Company, N.A. 2,934,999 36,908,000 3.59%
8 DIMENSIONAL FUND ADVISORS LP 2,903,861 36,516,000 3.55%
9 KING LUTHER CAPITAL MANAGEMENT CORP 2,562,618 32,225,000 3.13%
10 Neuberger Berman Group LLC 2,385,776 30,001,000 2.91%
11 LORD, ABBETT & CO. LLC 2,380,774 29,938,000 2.91%
12 Penn Capital Management Company, LLC 2,209,126 27,780,000 2.70%
13 STATE STREET CORP 2,131,265 26,795,000 2.60%
14 NORGES BANK 1,960,514 24,653,000 2.40%
15 NWQ INVESTMENT MANAGEMENT COMPANY, LLC 1,718,983 21,616,000 2.10%
16 NORTHERN TRUST CORP 1,273,522 16,014,000 1.56%
17 RENAISSANCE TECHNOLOGIES LLC 1,034,886 13,014,000 1.26%
18 GEODE CAPITAL MANAGEMENT, LLC 713,355 8,970,000 0.87%
19 Bank of New York Mellon Corp 710,366 8,932,000 0.87%
20 RUSSELL FRANK CO/ 689,024 8,665,000 0.84%
21 DEUTSCHE BANK AG\ 590,939 7,429,000 0.72%
22 MANAGED ACCOUNT ADVISORS LLC 445,560 5,603,000 0.54%
23 BALYASNY ASSET MANAGEMENT L.P. 394,587 4,962,000 0.48%
24 TIAA CREF INVESTMENT MANAGEMENT LLC 388,481 4,885,000 0.47%
25 NEW YORK STATE COMMON RETIREMENT FUND 387,333 4,871,000 0.47%
26 SUSQUEHANNA INTERNATIONAL GROUP, LLP 386,800 4,864,000 0.47% Call
27 ING GROEP NV 385,402 4,848,000 0.47%
28 WELLINGTON MANAGEMENT GROUP LLP 347,874 4,374,000 0.42%
29 TWO SIGMA ADVISERS, LP 331,897 4,174,000 0.41%
30 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 323,551 4,069,000 0.40%
31 BlackRock Investment Management, LLC 314,554 3,956,000 0.38%
32 BALYASNY ASSET MANAGEMENT L.P. 300,000 3,773,000 0.37% Call
33 AMERIPRISE FINANCIAL INC 297,194 3,738,000 0.36%
34 PEAK6 Group LLC 292,200 3,674,000 0.36% Call
35 CITIGROUP INC 241,587 3,037,000 0.30%
36 CITADEL ADVISORS LLC 240,180 3,021,000 0.29%
37 SYSTEMATIC FINANCIAL MANAGEMENT LP 220,340 2,770,000 0.27%
38 ALLIANCEBERNSTEIN L.P. 218,740 2,751,000 0.27%
39 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 208,317 2,620,000 0.25%
40 PARAMETRIC PORTFOLIO ASSOCIATES LLC 204,967 2,577,000 0.25%
41 Walleye Trading LLC 195,100 2,455,000 0.24% Call
42 SUSQUEHANNA INTERNATIONAL GROUP, LLP 192,284 2,418,000 0.23%
43 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 210,400 2,394,000 0.23%
44 AMERICAN CENTURY COMPANIES INC 181,685 2,285,000 0.22%
45 FIC CAPITAL INC 180,000 2,264,000 0.22%
46 TEACHERS ADVISORS, LLC 177,203 2,228,000 0.22%
47 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 169,212 2,128,000 0.21%
48 AHL Partners LLP 161,238 2,027,000 0.20%
49 TWO SIGMA INVESTMENTS, LP 157,027 1,975,000 0.19%
50 MORGAN STANLEY 143,291 1,802,000 0.18%
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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.