Close

Notable Holders of IRONWOOD PHARMACEUTICALS, INC. CL A (IRWD)

  |   Expand Research on IRWD   |   * Does Not Fully Represent All Holders
Fund Title Shares % Owned Source
MORGAN STANLEY COM 9,252,487 15.45% 13F
Ridgeback Capital Investments L.P. COMMON STOCK 8,157,343 13.62% 13F
Wellington COM CL A 7,906,190 13.20% 13F
Fidelity Investments COM CL A 5,123,954 8.56% 13F
VANGUARD GROUP INC COM CL A 2,504,362 4.18% 13F
Maverick Capital COM CL A 2,171,197 3.63% 13F
TCW GROUP INC COM CL A 2,115,320 3.53% 13F
MAVERICK CAPITAL LTD COM CL A 2,101,695 3.51% 13F
BRIDGER MANAGEMENT LLC COMMON STOCK 1,879,375 3.14% 13F
BlackRock Fund Advisors COM CL A 1,508,409 2.52% 13F
Adage Capital CL A 1,461,589 2.44% 13F
FIL Ltd COM CL A 1,224,933 2.05% 13F
BLACKROCK ADVISORS LLC COM CL A 868,598 1.45% 13F
WADDELL & REED FINANCIAL INC COM CL A 800,280 1.34% 13F
JANUS CAPITAL MANAGEMENT LLC COM 732,140 1.22% 13F
NORTHERN TRUST CORP COM 628,445 1.05% 13F
AMERIPRISE FINANCIAL INC COM 607,664 1.01% 13F
BlackRock Institutional Trust Company, N.A. COM CL A 591,602 0.99% 13F
PRICE T ROWE ASSOCIATES INC /MD/ COMM STK 524,515 0.88% 13F
STATE OF WISCONSIN INVESTMENT BOARD COM CL A 484,200 0.81% 13F
TURNER INVESTMENT PARTNERS INC COM CL A 475,170 0.79% 13F
ALGER FRED MANAGEMENT INC COMMON 418,760 0.70% 13F
TIAA CREF INVESTMENT MANAGEMENT LLC COM CL A 241,254 0.40% 13F
SHAPIRO ROBERT N COMMON STOCK 236,647 0.40% 13F
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC EQTY US OTC 234,800 0.39% 13F
Broderick Brian C COMMON STOCK 217,475 0.36% 13F
Ulys, LLC COM CL A 216,879 0.36% 13F
BlackRock Group LTD COM CL A 157,700 0.26% 13F
PIONEER INVESTMENT MANAGEMENT INC COMMSTCK 149,751 0.25% 13F
BlackRock Investment Management, LLC COM CL A 144,674 0.24% 13F
GEODE CAPITAL MANAGEMENT LLC COM CL A 142,987 0.24% 13F
SCHWAB CHARLES INVESTMENT MANAGEMENT INC COM CL A 132,424 0.22% 13F
MAZAMA CAPITAL MANAGEMENT INC COM 116,390 0.19% 13F
DEUTSCHE BANK AG\ COM CL A 105,016 0.18% 13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM * IRONWOOD 101,545 0.17% 13F
JPMORGAN CHASE & CO COMMON 95,725 0.16% 13F
WEISEL THOMAS PARTNERS ASSET MANAGEMENT LLC COM CL A 92,945 0.16% 13F
BVF INC/IL COM CL A 86,500 0.14% 13F
RENAISSANCE TECHNOLOGIES LLC COM CL A 58,300 0.10% 13F
TOCQUEVILLE ASSET MANAGEMENT LP COM 53,458 0.09% 13F
TEACHERS ADVISORS INC COM CL A 44,172 0.07% 13F
Manulife Asset Management (North America) Ltd COM CL A 42,374 0.07% 13F
PEAK6 Investments, L.P. COM CL A 40,400 0.07% 13F
Banyan Partners, LLC COM 38,300 0.06% 13F
AMERICAN INTERNATIONAL GROUP INC COM 36,843 0.06% 13F
GRT CAPITAL PARTNERS LLC COM CL A 26,726 0.04% 13F
SPRINGBOK CAPITAL MANAGEMENT, LLC COM CL A 25,274 0.04% 13F
ING INVESTMENT MANAGEMENT CO COM CL A 25,100 0.04% 13F
Goldman Sachs Asset Management, L.P. CMN 23,450 0.04% 13F
CREDIT AGRICOLE S A COM CL A 22,615 0.04% 13F
UBS AG COM CL A 20,645 0.03% 13F
AQR CAPITAL MANAGEMENT LLC COM CL A 19,100 0.03% 13F
HARBOURVEST PARTNERS LLC COMMON 17,143 0.03% 13F
PRINCIPAL FINANCIAL GROUP INC COM CL A 16,419 0.03% 13F
JENNISON ASSOCIATES LLC COM CL A 13,057 0.02% 13F
UNITED SERVICES AUTOMOBILE ASSOCIATION COMMON 12,600 0.02% 13F
CREDIT SUISSE AG/ COM CL A 10,692 0.02% 13F
D. E. Shaw & Co., INC. COM CL A 7,464 0.01% 13F