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AtriCure, Inc.

ATRC
Exchange
Nasdaq
Industry
Surgical & Medical Instruments & Apparatus
SEC CIK
0001323885

In the last 90 days, AtriCure, Inc. insiders filed 0 open-market purchases and 10 sales; 251 institutions reported holding it in 13F filings for Q2 2026, worth $1.47B in total; no superinvestor holds it.

13F holders, Q1 2021

Institutional positions in AtriCure, Inc. as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
191
No complete 13F data for Q4 2020
Shares held
44.6M
No complete 13F data for Q4 2020
Total value
$2.92B
No complete 13F data for Q4 2020

Holders and value by quarter

Institutions reporting ATRC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2021: 191 institutions
Q1 2021: 191 institutionsQ2 2021: 212 institutionsQ3 2021: 214 institutionsQ4 2021: 217 institutionsQ1 2022: 218 institutionsQ2 2022: 215 institutionsQ3 2022: 214 institutionsQ4 2022: 212 institutionsQ1 2023: 225 institutionsQ2 2023: 224 institutionsQ3 2023: 231 institutionsQ4 2023: 233 institutionsQ1 2024: 224 institutionsQ2 2024: 198 institutionsQ3 2024: 202 institutionsQ4 2024: 213 institutionsQ1 2025: 221 institutionsQ2 2025: 202 institutionsQ3 2025: 223 institutionsQ4 2025: 234 institutionsQ1 2026: 224 institutionsQ2 2026: 251 institutions
Value heldQ1 2021: $2.92B
Q1 2021: $2.92BQ2 2021: $3.51BQ3 2021: $3.02BQ4 2021: $3.07BQ1 2022: $2.89BQ2 2022: $1.82BQ3 2022: $1.75BQ4 2022: $2.02BQ1 2023: $1.86BQ2 2023: $2.22BQ3 2023: $1.99BQ4 2023: $1.68BQ1 2024: $1.51BQ2 2024: $1.16BQ3 2024: $1.39BQ4 2024: $1.42BQ1 2025: $1.62BQ2 2025: $1.60BQ3 2025: $1.70BQ4 2025: $1.93BQ1 2026: $1.46BQ2 2026: $1.47B
Institutions holding ATRC and their total value by quarter
QuarterHoldersValue
Q2 2026251$1.47B
Q1 2026224$1.46B
Q4 2025234$1.93B
Q3 2025223$1.70B
Q2 2025202$1.60B
Q1 2025221$1.62B
Q4 2024213$1.42B
Q3 2024202$1.39B
Q2 2024198$1.16B
Q1 2024224$1.51B
Q4 2023233$1.68B
Q3 2023231$1.99B
Q2 2023224$2.22B
Q1 2023225$1.86B
Q4 2022212$2.02B
Q3 2022214$1.75B
Q2 2022215$1.82B
Q1 2022218$2.89B
Q4 2021217$3.07B
Q3 2021214$3.02B
Q2 2021212$3.51B
Q1 2021191$2.92B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding AtriCure, Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding ATRC in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock Inc.3,890,137$254.9M0.01%––
Vanguard Group Inc3,376,578$221.2M0.01%––
Fred Alger Management, LLC3,193,417$209.2M0.55%––
Alliancebernstein L.P.2,444,437$160.2M0.07%––
Invesco Ltd.2,381,570$156.0M0.04%––
Price T Rowe Associates Inc2,265,628$148.4M0.01%––
Champlain Investment Partners, LLC2,175,140$142.5M0.74%––
Credit Suisse AG1,369,866$89.8M0.07%––
TimesSquare Capital Management, LLC1,328,665$87.1M0.75%––
FMR LLC1,194,972$78.3M0.01%––
Eagle Asset Management Inc1,070,933$68.7M0.30%––
State Street Corp989,384$64.8M0.00%––
Loomis Sayles & Co L P919,868$60.3M0.08%––
GW&K Investment Management, LLC864,101$56.6M0.52%––
First Light Asset Management, LLC828,002$54.3M3.60%––
Fiera Capital Corp797,663$52.3M0.15%––
Geode Capital Management, LLC777,378$50.9M0.01%––
Macquarie Group Ltd761,552$49.9M0.07%––
Artisan Partners Limited Partnership638,157$41.8M0.05%––
Neuberger Berman Group LLC640,367$41.6M0.04%––
Pura Vida Investments, LLC615,950$40.4M2.79%––
Emerald Mutual Fund Advisers Trust539,856$35.4M1.17%––
Citadel Advisors LLC520,161$34.1M0.04%––
Northern Trust Corp516,169$33.8M0.01%––
Polar Capital Holdings Plc507,986$33.3M0.21%––
Emerald Advisers, LLC501,311$32.8M1.19%––
Bellevue Group AG497,712$32.6M0.35%––
Wellington Management Group LLP496,365$32.5M0.01%––
Bank of America Corp479,439$31.4M0.00%––
Wasatch Advisors Inc475,652$31.2M0.14%––
Sectoral Asset Management Inc469,867$30.8M2.33%––
BNP PARIBAS ASSET MANAGEMENT Holding S.A.462,113$30.3M0.12%––
Dimensional Fund Advisors LP420,233$27.5M0.01%––
Nuveen Asset Management, LLC364,969$23.9M0.01%––
Peregrine Capital Management LLC329,205$21.6M0.40%––
Norges Bank307,199$20.1M0.00%––
Charles Schwab Investment Management Inc306,703$20.1M0.01%––
UBS Asset Management Americas Inc303,297$19.9M0.01%––
Bank of New York Mellon Corp263,010$17.2M0.00%––
New York State Common Retirement Fund236,931$15.5M0.02%––
Tamarack Advisers, LP200,000$13.1M2.72%––
State of Wisconsin Investment Board195,600$12.8M0.03%––
Silvercrest Asset Management Group LLC195,330$12.8M0.09%––
SEI Investments Co167,618$10.9M0.03%––
Wells Fargo & Company165,670$10.9M0.00%––
Man Group plc157,896$10.3M0.05%––
WCM Investment Management, LLC152,145$9.97M0.03%––
Rothschild & Co Asset Management US Inc.149,458$9.79M0.12%––
Granahan Investment Management Inc132,822$8.70M0.18%––
DAFNA Capital Management LLC128,529$8.42M2.00%––
Royce & Associates LP125,743$8.24M0.06%––
Oak Ridge Investments LLC112,009$7.34M0.68%––
Driehaus Capital Management LLC108,865$7.13M0.11%––
Swiss National Bank102,900$6.74M0.00%––
Paradigm Capital Management Inc87,200$5.71M0.30%––
Barclays PLC82,578$5.41M0.01%––
California Public Employees Retirement System81,337$5.33M0.00%––
Royal Bank of Canada69,532$4.56M0.00%––
TD Asset Management Inc69,053$4.52M0.01%––
California State Teachers Retirement System65,934$4.32M0.01%––
Kennedy Capital Management, Inc.65,315$4.28M0.09%––
Vivo Capital, LLC64,573$4.23M0.15%––
Morgan Stanley62,740$4.11M0.00%––
JPMorgan Chase & Co60,584$3.97M0.00%––
Goldman Sachs Group Inc52,762$3.46M0.00%––
Rhumbline Advisers52,579$3.44M0.00%––
Sit Investment Associates Inc50,075$3.28M0.09%––
Envestnet Asset Management Inc48,566$3.18M0.00%––
Deutsche Bank AG47,143$3.09M0.00%––
Parian Global Management LP40,652$2.66M1.24%––
Perkins Capital Management Inc38,350$2.51M1.45%––
State of New Jersey Common Pension Fund D38,205$2.50M0.01%––
D. E. Shaw & Co., Inc.35,300$2.31M0.00%––
Principal Financial Group Inc35,023$2.29M0.00%––
Parametric Portfolio Associates LLC32,184$2.11M0.00%––
Foundry Partners, LLC31,644$2.07M0.07%––
Legal & General Group Plc29,003$1.90M0.00%––
First Trust Advisors LP28,639$1.88M0.00%––
American International Group, Inc.25,484$1.67M0.01%––
Manufacturers Life Insurance Company, The24,551$1.61M0.00%––
Stifel Financial Corp23,883$1.56M0.00%––
Brinker Capital Investments, LLC23,281$1.52M0.02%––
Advisors Capital Management, LLC19,608$1.28M0.05%––
Aviva PLC19,430$1.27M0.01%––
Voya Investment Management LLC19,343$1.27M0.00%––
Truist Financial Corp18,753$1.23M0.00%––
Midwest Wealth Management Inc.18,637$1.22M0.99%––
Raymond James & Associates17,768$1.16M0.00%––
State Board of Administration of Florida Retirement System17,552$1.15M0.00%––
MetLife Investment Management16,711$1.09M0.01%––
Thrivent Financial for Lutherans15,445$1.01M0.00%––
LPL Financial LLC14,868$974.0K0.00%––
First Republic Investment Management, Inc.14,313$938.0K0.00%––
Cna Financial Corp14,000$917.0K0.28%––
Victory Capital Management Inc13,984$916.0K0.00%––
MAI Capital Management13,899$911.0K0.02%––
Chartwell Investment Partners, LLC13,493$884.0K0.03%––
Arizona State Retirement System13,106$859.0K0.01%––
Wesbanco Bank Inc13,050$855.0K0.03%––
Acuitas Investments, LLC12,916$846.0K0.49%––