ATRICURE INC

Ticker: ATRC CUSIP: 04963C209 Class: Common Stock

Note: Option positions (PUT/CALL) are excluded.

InstitutionSharesValue ($000)
VANGUARD GROUP INC4,903,755$193,993
BlackRock, Inc.4,065,804$160,843
WELLINGTON MANAGEMENT GROUP LLP3,917,991$154,996
ALLIANCEBERNSTEIN L.P.3,563,582$140,975
Hood River Capital Management LLC3,096,611$122,502
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.2,038,703$80,651
STATE STREET CORP1,242,374$49,148
GEODE CAPITAL MANAGEMENT, LLC1,191,498$47,144
First Light Asset Management, LLC1,175,445$46,501
Champlain Investment Partners, LLC1,173,605$46,428
NEUBERGER BERMAN GROUP LLC1,086,326$42,999
BNP Paribas Investment Partners S.A.959,294$38
GW&K Investment Management, LLC952,089$38
DIMENSIONAL FUND ADVISORS LP921,897$36,472
MARSHALL WACE, LLP913,453$36,136
GOLDMAN SACHS GROUP INC885,062$35,013
KENNEDY CAPITAL MANAGEMENT LLC837,326$33,125
Voya Investment Management LLC712,329$28,180
BANK OF AMERICA CORP /DE/675,731$26,732
DAFNA Capital Management LLC597,431$23,634
UBS ASSET MANAGEMENT AMERICAS INC569,723$22,538
MASSACHUSETTS FINANCIAL SERVICES CO /MA/511,213$20,224
NORTHERN TRUST CORP438,210$17,336
CHARLES SCHWAB INVESTMENT MANAGEMENT INC437,883$17,323
Defilade Capital Management, L.P.397,636$15,730
TWO SIGMA INVESTMENTS, LP380,499$15,053
Connor, Clark & Lunn Investment Management Ltd.378,496$14,973
WCM INVESTMENT MANAGEMENT, LLC372,682$14,974
WASATCH ADVISORS LP353,877$13,999
MORGAN STANLEY346,116$13,692
Nuveen, LLC336,259$13,302
Grandeur Peak Global Advisors, LLC328,491$12,995
RENAISSANCE TECHNOLOGIES LLC321,900$12,734
Qube Research & Technologies Ltd290,540$11,494
FMR LLC285,759$11,305
Point72 Asset Management, L.P.277,924$10,995
TWO SIGMA ADVISERS, LP277,700$10,986
ALGERT GLOBAL LLC261,477$10
CITADEL ADVISORS LLC242,741$9,603
Amundi230,852$9,133
PANAGORA ASSET MANAGEMENT INC226,575$8,963
VOLORIDGE INVESTMENT MANAGEMENT, LLC220,290$8,715
OBERWEIS ASSET MANAGEMENT INC/217,992$8,624
RAYMOND JAMES FINANCIAL INC217,462$8,737
NORGES BANK214,016$8,466
NICHOLAS COMPANY, INC.205,505$8,130
OSTERWEIS CAPITAL MANAGEMENT INC203,575$8,053
Universal- Beteiligungs- und Servicegesellschaft mbH193,274$7,646
Advisors Capital Management, LLC182,853$7,234
JPMORGAN CHASE & CO179,600$7,105
STATE OF WISCONSIN INVESTMENT BOARD164,199$6,496
MILLENNIUM MANAGEMENT LLC163,795$6,480
SEI INVESTMENTS CO158,303$6,262
Bank of New York Mellon Corp135,572$5,363
PARADIGM CAPITAL MANAGEMENT INC/NY123,100$4,870
Allianz Asset Management GmbH117,816$4,661
FIRST TRUST ADVISORS LP117,758$4,659
First Eagle Investment Management, LLC116,609$4,613
ADAGE CAPITAL PARTNERS GP, L.L.C.110,210$4,360
SIT INVESTMENT ASSOCIATES INC107,905$4
UBS Group AG104,060$4,117
WELLS FARGO & COMPANY/MN101,486$4,015
AQR CAPITAL MANAGEMENT LLC99,956$3,954
Swiss National Bank98,000$3,877
BARCLAYS PLC92,606$3,663
Susquehanna Portfolio Strategies, LLC86,325$3,415
Squarepoint Ops LLC85,803$3,394
HighMark Wealth Management LLC83,720$3,312
ACADIAN ASSET MANAGEMENT LLC82,883$3
AMERICAN CENTURY COMPANIES INC81,612$3,229
Trexquant Investment LP77,667$3,073
Invesco Ltd.74,435$2,945
F/M Investments LLC72,588$2,872
RHUMBLINE ADVISERS67,345$2,664
PRUDENTIAL FINANCIAL INC60,610$2,398
Riverwater Partners LLC60,322$2,386
Brinker Capital Investments, LLC60,138$2,379
Engineers Gate Manager LP58,479$2,313
ENVESTNET ASSET MANAGEMENT INC58,301$2,306
JANE STREET GROUP, LLC52,620$2,082
FRANKLIN RESOURCES INC52,283$2,068
DEERFIELD MANAGEMENT COMPANY, L.P.52,076$2,060
Legal & General Group Plc52,043$2,059
Knott David M Jr51,400$2,033
PRICE T ROWE ASSOCIATES INC /MD/50,577$2
B. Metzler seel. Sohn & Co. AG49,876$1,973
LAZARD ASSET MANAGEMENT LLC49,719$1,967
DEUTSCHE BANK AG\45,926$1,817
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM44,960$1,779
PRINCIPAL FINANCIAL GROUP INC44,140$1,746
OpenArc Corporate Advisory, LLC44,084$1,744
SCOTIA CAPITAL INC.38,949$1,541
Oak Harvest Investment Services37,500$1,484
Diversified Trust Co37,436$1,481
SG Americas Securities, LLC37,081$1
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY36,102$1
GSA CAPITAL PARTNERS LLP34,802$1
Y-Intercept (Hong Kong) Ltd34,728$1,374
HARBOR CAPITAL ADVISORS, INC.33,564$1
BESSEMER GROUP INC33,140$1
134 other institutions997,715$37,709
Total (234 institutions)48,743,750$1,824,626