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Notable Holders of Active Power, Inc. (ACPW)

  |   Expand Research on ACPW   |   * Does Not Fully Represent All Holders
Fund Title Shares % Owned Source
THOMSON HORSTMANN & BRYANT INC COM 5,180,930 6.46% 13F
SOUND ENERGY PARTNERS, INC. COM 4,591,468 5.73% 13F
RHO CAPITAL PARTNERS INC COM 3,702,524 4.62% 13F
BlackRock Institutional Trust Company, N.A. COM 2,735,414 3.41% 13F
Impax Asset Management LTD COMMON 2,217,773 2.77% 13F
OBERWEIS ASSET MANAGEMENT INC/ COM 2,028,020 2.53% 13F
VANGUARD GROUP INC COM 1,780,927 2.22% 13F
BlackRock Fund Advisors COM 1,713,906 2.14% 13F
DIMENSIONAL FUND ADVISORS LP COM 1,645,858 2.05% 13F
MARXE AUSTIN W & GREENHOUSE DAVID M COMMON 1,143,500 1.43% 13F
NORTHERN TRUST CORP COM 999,113 1.25% 13F
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC EQTY US OTC 799,117 1.00% 13F
Savitr Capital, LLC COM 473,230 0.59% 13F
TIAA CREF INVESTMENT MANAGEMENT LLC COM 446,840 0.56% 13F
UBS AG COM 420,058 0.52% 13F
GEODE CAPITAL MANAGEMENT LLC COM 265,665 0.33% 13F
DIKER MANAGEMENT LLC COM 262,300 0.33% 13F
BlackRock Investment Management, LLC COM 218,750 0.27% 13F
DEUTSCHE BANK AG\ COM 182,019 0.23% 13F
PRESCOTT GROUP CAPITAL MANAGEMENT LLC COM 178,536 0.22% 13F
Goldman Sachs Asset Management, L.P. CMN 116,386 0.15% 13F
TFS CAPITAL LLC COM 107,227 0.13% 13F
GABELLI FUNDS LLC COM 100,000 0.12% 13F
Invesco Ltd. COMMON 76,482 0.10% 13F
TEACHERS ADVISORS INC COM 75,744 0.09% 13F
GMT CAPITAL CORP COM 75,370 0.09% 13F
First Allied Securities, Inc. COM 70,000 0.09% 13F
ING INVESTMENT MANAGEMENT CO COM 65,700 0.08% 13F
Manulife Asset Management (North America) Ltd COM 63,716 0.08% 13F
CAMDEN PARTNERS HOLDINGS LLC COM 60,000 0.07% 13F
AMERICAN INTERNATIONAL GROUP INC COM 58,427 0.07% 13F
BLACKROCK ADVISORS LLC COM 57,235 0.07% 13F
AQR CAPITAL MANAGEMENT LLC COM 46,100 0.06% 13F
GUGGENHEIM CAPITAL LLC COM 43,539 0.05% 13F
REGIONS FINANCIAL CORP COM 40,000 0.05% 13F
RHJ International SA COM 28,000 0.03% 13F
CREDIT SUISSE AG/ COM 23,963 0.03% 13F
KNIGHT CAPITAL GROUP, INC. COM 14,220 0.02% 13F
WELLS FARGO & CO/MN EQUITY 14,205 0.02% 13F
SG Americas Securities, LLC 10,497 0.01% 13F
BESSEMER GROUP INC SC 10,140 0.01% 13F
Summit Asset Management, LLC COM 10,011 0.01% 13F