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MEDIDATA SOLUTIONS INC
MEDIDATA SOLUTIONS INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q2)
Portfolio Summary: 215 Institutional holders with a total value of $3,128,495,728.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SANDS CAPITAL MANAGEMENT, LLC 5,576,577 302,920,000 9.68%
2 BROWN CAPITAL MANAGEMENT LLC 5,175,423 281,129,000 8.99%
3 VANGUARD GROUP INC 3,917,480 212,798,000 6.80%
4 BlackRock Fund Advisors 3,255,434 176,835,000 5.65%
5 FMR LLC 2,640,867 143,452,000 4.59%
6 Clearbridge Investments, LLC 2,045,200 111,095,000 3.55%
7 COLUMBIA WANGER ASSET MANAGEMENT LLC 1,945,061 105,656,000 3.38%
8 MORGAN STANLEY 1,538,736 83,584,000 2.67%
9 BlackRock Institutional Trust Company, N.A. 1,289,774 70,061,000 2.24%
10 Global Thematic Partners, LLC 1,172,750 63,703,000 2.04%
11 LORD, ABBETT & CO. LLC 1,144,706 62,180,000 1.99%
12 STATE STREET CORP 1,119,393 60,805,000 1.94%
13 KORNITZER CAPITAL MANAGEMENT INC /KS 1,107,410 60,155,000 1.92%
14 ZEVENBERGEN CAPITAL INVESTMENTS LLC 1,095,627 59,514,000 1.90%
15 NEW YORK STATE COMMON RETIREMENT FUND 1,092,099 59,323,000 1.90%
16 Bank of New York Mellon Corp 1,059,193 57,537,000 1.84%
17 EAGLE ASSET MANAGEMENT INC 1,050,388 57,057,000 1.82%
18 Apex Capital Management 1,018,199 55,309,000 1.77%
19 Champlain Investment Partners, LLC 910,300 49,447,000 1.58%
20 Stephens Investment Management Group LLC 888,243 48,249,000 1.54%
21 DEUTSCHE BANK AG\ 806,527 43,807,000 1.40%
22 GW&K Investment Management, LLC 672,908 36,552,000 1.17%
23 NORTHERN TRUST CORP 625,361 33,970,000 1.09%
24 FRONTIER CAPITAL MANAGEMENT CO LLC 616,729 33,501,000 1.07%
25 NORGES BANK 546,798 29,702,000 0.95%
26 ROYAL BANK OF CANADA 522,892 28,403,000 0.91%
27 STRS OHIO 501,897 27,263,000 0.87%
28 AMERIPRISE FINANCIAL INC 492,885 26,773,000 0.86%
29 Conestoga Capital Advisors, LLC 475,031 25,804,000 0.82%
30 WELLS FARGO & COMPANY/MN 466,483 25,340,000 0.81%
31 COLUMBUS CIRCLE INVESTORS 463,036 25,152,000 0.80%
32 LOOMIS SAYLES & CO L P 462,381 25,117,000 0.80%
33 TAMRO Capital Partners LLC 432,176 23,476,000 0.75%
34 FRED ALGER MANAGEMENT, LLC 419,577 22,791,000 0.73%
35 WADDELL & REED FINANCIAL INC 419,156 22,768,000 0.73%
36 MANAGED ACCOUNT ADVISORS LLC 399,876 21,721,000 0.69%
37 Polar Capital LLP 388,540 21,102,000 0.67%
38 Alberta Investment Management Corp 371,460 20,178,000 0.64%
39 MACKENZIE FINANCIAL CORP 355,494 19,310,000 0.62%
40 GEODE CAPITAL MANAGEMENT, LLC 346,833 18,839,000 0.60%
41 PRINCIPAL FINANCIAL GROUP INC 346,250 18,808,000 0.60%
42 NEW SOUTH CAPITAL MANAGEMENT INC 319,539 17,357,000 0.55%
43 BROWN ADVISORY INC 310,532 16,868,000 0.54%
44 ArrowMark Colorado Holdings LLC 304,847 16,559,000 0.53%
45 JANUS HENDERSON GROUP PLC 298,320 16,205,000 0.52%
46 DISCIPLINED GROWTH INVESTORS INC /MN 279,220 15,167,000 0.48%
47 IRONBRIDGE CAPITAL MANAGEMENT LP 274,070 14,887,000 0.48%
48 KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 268,386 14,579,000 0.47%
49 TIVERTON ASSET MANAGEMENT LLC 234,600 12,743,000 0.41%
50 ARROWGRASS CAPITAL PARTNERS (US) LP 224,224 12,180,000 0.39%
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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.