What does CUSIP 04963C209 represent in this 13F holders report?

CUSIP 04963C209 is the security identifier for ATRC - AtriCure, Inc. - Common Stock used to aggregate holder disclosures.

How many institutions held ATRC - AtriCure, Inc. - Common Stock in Q4 2020?

191 institutional investors reported ATRC - AtriCure, Inc. - Common Stock for Q4 2020. Use the holders table for investor-level position and value details.

AtriCure, Inc. - Common Stock (ATRC)

CUSIP: 04963C209

Q4 2020 13F Holders as of 31 Dec 2020

Type / Class: Equity / Common Stock
Shares outstanding: 49,704,831
Total 13F shares: 44,006,691
Share change: +1,502,238
Total reported value: $2,449,180,355
Put/Call ratio: 19%
Price per share: $55.67
Number of holders: 191
Value change: +$92,888,778
Number of buys: 98
Number of sells: 75

Quarterly Holders Quick Answers

What is CUSIP 04963C209?
CUSIP 04963C209 identifies ATRC - AtriCure, Inc. - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
Back to full security ownership history.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2021
Previous quarter: Q3 2020

Recent filing periods for CUSIP 04963C209:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of ATRC - AtriCure, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
FMR LLC	13F	Company	10%	5,102,416	$203,587,000	—	30 Sep 2020	13F
BlackRock Finance, Inc.	13F	Company	7.2%	3,566,178	$142,291,000	—	30 Sep 2020	13F
FRED ALGER MANAGEMENT, LLC	13F	Company	5.5%	2,733,381	$109,062,000	—	30 Sep 2020	13F
VANGUARD GROUP INC	13F	Company	4.5%	2,239,272	$89,348,000	—	30 Sep 2020	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	4.5%	2,217,639	$88,484,000	—	30 Sep 2020	13F
Invesco Ltd.	13F	Company	4.3%	2,133,398	$85,123,000	—	30 Sep 2020	13F
Champlain Investment Partners, LLC	13F	Company	4.2%	2,069,420	$82,570,000	—	30 Sep 2020	13F
TimesSquare Capital Management, LLC	13F	Company	2.6%	1,292,665	$51,577,000	—	30 Sep 2020	13F
ORBIMED ADVISORS LLC	13F	Company	2.5%	1,228,189	$49,005,000	—	30 Sep 2020	13F
STATE STREET CORP	13F	Company	2.1%	1,041,312	$41,548,000	—	30 Sep 2020	13F
WASATCH ADVISORS LP	13F	Company	1.9%	922,982	$36,827,000	—	30 Sep 2020	13F
GW&K Investment Management, LLC	13F	Company	1.7%	869,353	$34,687,000	—	30 Sep 2020	13F
Neuberger Berman Group LLC	13F	Company	1.5%	733,930	$29,248,000	—	30 Sep 2020	13F
LOOMIS SAYLES & CO L P	13F	Company	1.5%	731,575	$29,190,000	—	30 Sep 2020	13F
SECTORAL ASSET MANAGEMENT INC	13F	Company	1.4%	708,717	$28,278,000	—	30 Sep 2020	13F
PURA VIDA INVESTMENTS, LLC	13F	Company	1.3%	645,003	$25,736,000	—	30 Sep 2020	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.3%	644,122	$25,700,000	—	30 Sep 2020	13F
EAGLE ASSET MANAGEMENT INC	13F	Company	1.2%	618,856	$24,766,000	—	30 Sep 2020	13F
NORTHERN TRUST CORP	13F	Company	1.2%	572,177	$22,830,000	—	30 Sep 2020	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	1.1%	571,375	$22,798,000	—	30 Sep 2020	13F
First Light Asset Management, LLC	13F	Company	1.1%	561,018	$22,385,000	—	30 Sep 2020	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	1.1%	536,571	$21,409,000	—	30 Sep 2020	13F
BNP Paribas Asset Management Holding S.A.	13F	Company	1.1%	529,749	$21,137,000	—	30 Sep 2020	13F
EMERALD ADVISERS, LLC	13F	Company	1%	500,848	$19,984,000	—	30 Sep 2020	13F
Polar Capital LLP	13F	Company	0.96%	478,119	$19,077,000	—	30 Sep 2020	13F
EMERALD MUTUAL FUND ADVISERS TRUST	13F	Company	0.96%	477,064	$19,035,000	—	30 Sep 2020	13F
Nuveen Asset Management, LLC	13F	Company	0.88%	436,315	$17,409,000	—	30 Sep 2020	13F
Fiera Capital Corp	13F	Company	0.82%	409,368	$16,334,000	—	30 Sep 2020	13F
CARILLON TOWER ADVISERS, INC.	13F	Company	0.73%	361,726	$14,432,000	—	30 Sep 2020	13F
Tamarack Advisers, LP	13F	Company	0.7%	350,000	$13,965,000	—	30 Sep 2020	13F
GILDER GAGNON HOWE & CO LLC	13F	Company	0.68%	337,689	$13,474,000	—	30 Sep 2020	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.66%	326,596	$13,031,181	—	30 Sep 2020	13F
PEREGRINE CAPITAL MANAGEMENT LLC	13F	Company	0.65%	321,452	$12,826,000	—	30 Sep 2020	13F
Bank of New York Mellon Corp	13F	Company	0.59%	294,465	$11,749,000	—	30 Sep 2020	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.59%	292,439	$11,669,000	—	30 Sep 2020	13F
CITADEL ADVISORS LLC	13F	Company	0.55%	274,804	$10,965,000	—	30 Sep 2020	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.55%	271,948	$10,851,000	—	30 Sep 2020	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.51%	255,010	$10,175,000	—	30 Sep 2020	13F
D. E. Shaw & Co., Inc.	13F	Company	0.51%	251,814	$10,047,000	—	30 Sep 2020	13F
PERCEPTIVE ADVISORS LLC	13F	Company	0.44%	216,449	$8,636,000	—	30 Sep 2020	13F
SILVERCREST ASSET MANAGEMENT GROUP LLC	13F	Company	0.43%	215,665	$8,605,000	—	30 Sep 2020	13F
Man Group plc	13F	Company	0.41%	203,396	$8,116,000	—	30 Sep 2020	13F
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F	Company	0.38%	190,000	$7,581,000	—	30 Sep 2020	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.35%	174,298	$6,954,000	—	30 Sep 2020	13F
WCM INVESTMENT MANAGEMENT, LLC	13F	Company	0.31%	154,839	$6,178,000	—	30 Sep 2020	13F
MANUFACTURERS LIFE INSURANCE COMPANY, THE	13F	Company	0.3%	147,434	$5,883,000	—	30 Sep 2020	13F
OAK RIDGE INVESTMENTS LLC	13F	Company	0.29%	145,031	$5,787,000	—	30 Sep 2020	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.28%	136,924	$5,463,000	—	30 Sep 2020	13F
DAFNA Capital Management LLC	13F	Company	0.27%	133,229	$5,316,000	—	30 Sep 2020	13F
ROYCE & ASSOCIATES LP	13F	Company	0.25%	125,743	$5,017,000	—	30 Sep 2020	13F

Institutional Holders of AtriCure, Inc. - Common Stock (ATRC) as of Q4 2020

As of 31 Dec 2020, AtriCure, Inc. - Common Stock (ATRC) was held by 191 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 44,006,691 shares. The largest 10 holders included BlackRock Inc., FRED ALGER MANAGEMENT, LLC, VANGUARD GROUP INC, PRICE T ROWE ASSOCIATES INC /MD/, Invesco Ltd., Champlain Investment Partners, LLC, FMR LLC, TimesSquare Capital Management, LLC, ORBIMED ADVISORS LLC, and CREDIT SUISSE AG/. This page lists 192 institutional shareholders reporting positions in this security for the Q4 2020 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2020 vs Q3 2020 Across Filers

Q3 2020 holders

178

Q4 2020 holders

191

Holder diff

Investor	Q3 2020 Shares	Q4 2020 Shares	Share Diff	Share Chg %	Q3 2020 Value $	Q4 2020 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.