Notable Holders of Medidata Solutions, Inc. (MDSO)
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* Does Not Fully Represent All Holders
| Fund | Title | Shares | % Owned | Source |
|---|---|---|---|---|
| BROWN CAPITAL MANAGEMENT LLC | COM | 3,606,884 | 14.56% | 13F |
| NEW SOUTH CAPITAL MANAGEMENT INC | COM | 1,427,395 | 5.76% | 13F |
| ALGER FRED MANAGEMENT INC | COMMON | 1,283,877 | 5.18% | 13F |
| WELLS FARGO & CO/MN | EQUITY | 964,215 | 3.89% | 13F |
| Champlain Investment Partners, LLC | COM | 938,230 | 3.79% | 13F |
| VANGUARD GROUP INC | COM | 902,843 | 3.64% | 13F |
| Opus Capital Group, LLC | COM | 819,529 | 3.31% | 13F |
| FRONTIER CAPITAL MANAGEMENT CO LLC | COM | 703,793 | 2.84% | 13F |
| Discovery Group I | COM | 667,928 | 2.70% | 13F |
| NEW YORK STATE COMMON RETIREMENT FUND | COMMON STOCK | 580,031 | 2.34% | 13F |
| ASHFORD CAPITAL MANAGEMENT INC | COM | 501,900 | 2.03% | 13F |
| Iridian Asset Management | COM | 479,782 | 1.94% | 13F |
| Stephens Investment Management Group LLC | COM | 462,481 | 1.87% | 13F |
| BlackRock Fund Advisors | COM | 457,100 | 1.84% | 13F |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | COM | 373,000 | 1.51% | 13F |
| BlackRock Institutional Trust Company, N.A. | COM | 344,597 | 1.39% | 13F |
| OBERWEIS ASSET MANAGEMENT INC/ | COM | 315,300 | 1.27% | 13F |
| DISCIPLINED GROWTH INVESTORS INC /MN | COM | 272,100 | 1.10% | 13F |
| NORTHERN TRUST CORP | COM | 264,746 | 1.07% | 13F |
| DIMENSIONAL FUND ADVISORS LP | COM | 202,250 | 0.82% | 13F |
| TFS CAPITAL LLC | COM | 173,516 | 0.70% | 13F |
| Cortina Asset Management, LLC | COM | 158,825 | 0.64% | 13F |
| SUNTRUST BANKS INC | 153,074 | 0.62% | 13F | |
| TEACHERS ADVISORS INC | COM | 139,359 | 0.56% | 13F |
| GENEVA CAPITAL MANAGEMENT LTD/WI | COM | 117,710 | 0.48% | 13F |
| Perimeter Capital Partners, LLC | COM | 116,170 | 0.47% | 13F |
| Visium Asset Management, LP | COMMON STOCK | 100,000 | 0.40% | 13F |
| TIAA CREF INVESTMENT MANAGEMENT LLC | COM | 99,392 | 0.40% | 13F |
| GEODE CAPITAL MANAGEMENT LLC | COM | 75,129 | 0.30% | 13F |
| Invesco Ltd. | COMMON | 74,217 | 0.30% | 13F |
| PRINCIPAL FINANCIAL GROUP INC | COM | 70,263 | 0.28% | 13F |
| GLENMEDE TRUST CO NA | COMMON | 66,174 | 0.27% | 13F |
| BlackRock Investment Management, LLC | COM | 60,156 | 0.24% | 13F |
| GUGGENHEIM CAPITAL LLC | COM | 52,586 | 0.21% | 13F |
| Gotham Asset Management, LLC | COM | 45,007 | 0.18% | 13F |
| SCHWAB CHARLES INVESTMENT MANAGEMENT INC | COM | 40,784 | 0.16% | 13F |
| Citadel | CMN | 40,071 | 0.16% | 13F |
| REGIONS FINANCIAL CORP | COM | 33,382 | 0.13% | 13F |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 33,000 | 0.13% | 13F | |
| GENWORTH FINANCIAL INC | COM | 32,943 | 0.13% | 13F |
| DEERE & CO | COM | 27,981 | 0.11% | 13F |
| Fidelity Investments | COM | 27,800 | 0.11% | 13F |
| DSM CAPITAL PARTNERS LLC | COMMON STOCKS | 27,400 | 0.11% | 13F |
| Goldman Sachs Asset Management, L.P. | CMN | 26,863 | 0.11% | 13F |
| FBR & Co. | COM | 26,000 | 0.10% | 13F |
| CAXTON ASSOCIATES LP | COM | 25,983 | 0.10% | 13F |
| Missouri Valley Partners, Inc. | COM | 25,446 | 0.10% | 13F |
| BMO FINANCIAL CORP | COM | 25,169 | 0.10% | 13F |
| ROYAL BANK OF CANADA \ | COM | 23,873 | 0.10% | 13F |
| STATE FARM MUTUAL AUTOMOBILE INSURANCE CO | COM | 21,572 | 0.09% | 13F |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM | * MEDIDATA SOLUTIONS | 20,302 | 0.08% | 13F |
| FIRST TRUST ADVISORS LP | COM | 19,088 | 0.08% | 13F |
| Manulife Asset Management (North America) Ltd | COM | 17,234 | 0.07% | 13F |
| UNIONBANCAL CORP | COM | 17,145 | 0.07% | 13F |
| JEFFERIES GROUP INC /DE/ | COM | 17,100 | 0.07% | 13F |
| AMERICAN INTERNATIONAL GROUP INC | COM | 15,366 | 0.06% | 13F |
| BLACKROCK ADVISORS LLC | COM | 15,313 | 0.06% | 13F |
| CREDIT SUISSE AG/ | COM | 15,257 | 0.06% | 13F |
| FIRST MERCANTILE TRUST CO | COMMON STOCK USD.01 | 14,562 | 0.06% | 13F |
| ELLINGTON MANAGEMENT GROUP LLC | COM | 13,500 | 0.05% | 13F |
| RENAISSANCE TECHNOLOGIES LLC | COM | 13,300 | 0.05% | 13F |
| RAYMOND JAMES & ASSOCIATES | COM | 12,774 | 0.05% | 13F |
| PNC FINANCIAL SERVICES GROUP INC | COM | 12,100 | 0.05% | 13F |
| ING INVESTMENT MANAGEMENT CO | COM | 10,800 | 0.04% | 13F |
| LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC | COM | 10,363 | 0.04% | 13F |
| CREDIT AGRICOLE S A | COM | 6,600 | 0.03% | 13F |
| TURNER INVESTMENT PARTNERS INC | COM | 2,534 | 0.01% | 13F |
