ATRC Insider Trading

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Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 4.00%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $3,958,235.16

AtriCure Insider Trading History Chart

AtriCure Share Price & Price History

^$58.10

▼ -1.02 (-1.73%)

As of 09/18/2026 04:00 PM ET

Days: 30 | 90 | 365

AtriCure Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
9/11/2026	Regina E. Groves	Director	Sell	5,313	$54.22	$288,070.86	34,546
9/8/2026	Salvatore Privitera	Insider	Sell	3,657	$55.00	$201,135.00	147,264
9/2/2026	Salvatore Privitera	Insider	Sell	7,763	$52.50	$407,557.50	150,921
8/24/2026	Karl S. Dahlquist	Insider	Sell	9,370	$48.89	$458,099.30	87,319
8/5/2026	Karen Prange	Director	Sell	3,564	$38.80	$138,283.20	22,809
8/5/2026	Maggie Yuen	Director	Sell	3,500	$38.42	$134,470.00	14,015
7/29/2026	Justin J. Noznesky	Insider	Sell	6,182	$38.80	$239,861.60	100,219
7/28/2026	Sven Wehrwein	Director	Sell	25,000	$37.84	$946,000.00	40,518
7/28/2026	Vinayak Doraiswamy	Insider	Sell	6,000	$38.88	$233,280.00	86,511
5/20/2026	Karen Prange	Director	Sell	3,000	$28.65	$85,950.00	26,373
3/12/2026	Vinayak Doraiswamy	Insider	Sell	5,000	$29.83	$149,150.00	96,875
11/26/2025	Justin J. Noznesky	Insider	Sell	5,166	$37.29	$192,640.14	78,798
11/25/2025	Sven Wehrwein	Director	Sell	4,967	$38.00	$188,746.00	34,374
11/24/2025	Sven Wehrwein	Director	Sell	5,033	$37.32	$187,831.56	34,374
11/21/2025	Maggie Yuen	Director	Sell	3,000	$35.72	$107,160.00	11,371
9/12/2025	Justin J. Noznesky	Insider	Sell	3,000	$36.30	$108,900.00	83,964
8/22/2025	Sven Wehrwein	Director	Sell	5,000	$37.00	$185,000.00	34,374
8/19/2025	Sven Wehrwein	Director	Sell	5,000	$36.00	$180,000.00	34,374
8/6/2025	Regina E. Groves	Director	Sell	2,452	$36.82	$90,282.64	33,715
8/5/2025	Vinayak Doraiswamy	Insider	Sell	2,500	$36.58	$91,450.00	71,872
5/28/2025	Vinayak Doraiswamy	Insider	Sell	2,500	$33.44	$83,600.00	73,550
3/5/2025	Karen Prange	Director	Sell	6,100	$38.12	$232,532.00	17,828
8/15/2024	Maggie Yuen	Director	Sell	3,500	$24.07	$84,245.00	8,970
5/30/2024	Salvatore Privitera	Insider	Buy	5,000	$22.25	$111,250.00	103,290
5/1/2024	Justin J. Noznesky	Insider	Sell	1,500	$24.09	$36,135.00	71,284
4/1/2024	Justin J. Noznesky	Insider	Sell	1,500	$30.39	$45,585.00	72,784
3/18/2024	Karl S. Dahlquist	Insider	Sell	1,885	$32.16	$60,621.60	50,954
3/12/2024	Justin J. Noznesky	Insider	Sell	1,500	$36.72	$55,080.00	74,284
3/5/2024	Karl S. Dahlquist	Insider	Sell	8,231	$37.36	$307,510.16	52,839
11/1/2023	Karl S. Dahlquist	Insider	Sell	1,248	$34.43	$42,968.64	30,789

SEC Filings (Institutional Ownership Changes) for AtriCure (NASDAQ:ATRC)

99.11% of AtriCure stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

AtriCure Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
9/9/2026	First Light Asset Management LLC	567,838	$15.89M	1.0%	-22.2%	1.116%
9/9/2026	Tidal Investments LLC	19,091	$0.53M	0.0%	+46.2%	0.038%
9/9/2026	WINTON GROUP Ltd	35,800	$1M	0.0%	N/A	0.070%
9/9/2026	Engineers Gate Manager LP	48,160	$1.35M	0.0%	+12.3%	0.095%
9/9/2026	Integrated Wealth Concepts LLC	1,634	$46K	0.0%	N/A	0.003%
9/8/2026	Allworth Financial LP	1,527	$43K	0.0%	+372.8%	0.003%
9/8/2026	Arizona State Retirement System	13,273	$0.37M	0.0%	-2.8%	0.026%
8/26/2026	Amundi	264,854	$7.41M	0.0%	+17.2%	0.521%
8/26/2026	HighTower Advisors LLC	8,490	$0.24M	0.0%	N/A	0.017%
8/25/2026	VIRGINIA RETIREMENT SYSTEMS ET Al	17,200	$0.48M	0.0%	N/A	0.034%
8/22/2026	Three Seasons Wealth LLC	7,152	$0.20M	0.0%	N/A	0.014%
8/20/2026	Grandeur Peak Global Advisors LLC	587,399	$16.44M	4.0%	+53.8%	1.155%
8/20/2026	Headlands Technologies LLC	10,064	$0.28M	0.0%	N/A	0.020%
8/20/2026	Susquehanna Fundamental Investments LLC	50,484	$1.41M	0.0%	N/A	0.099%
8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	131,853	$3.69M	0.0%	-76.2%	0.259%
8/19/2026	Wellington Management Group LLP	3,495,603	$97.81M	0.0%	+3.3%	6.872%
8/18/2026	Grandeur Peak Global Advisors LLC	587,399	$16.44M	3.3%	N/A	1.155%
8/17/2026	Bank of America Corp DE	874,370	$24.47M	0.0%	N/A	1.719%
8/15/2026	Man Group plc	24,443	$0.68M	0.0%	N/A	0.048%
8/15/2026	Jupiter Topco LLC	22,883	$0.64M	0.0%	N/A	0.045%
8/15/2026	Meros Investment Management LP	170,000	$4.76M	0.0%	N/A	0.334%
8/14/2026	Canada Pension Plan Investment Board	14,100	$0.40M	0.0%	N/A	0.028%
8/14/2026	Osterweis Capital Management Inc.	501,355	$14.03M	0.7%	N/A	0.986%
8/14/2026	Legal & General Group Plc	39,893	$1.12M	0.0%	N/A	0.078%
8/14/2026	The Manufacturers Life Insurance Company	24,985	$0.70M	0.0%	N/A	0.049%
8/14/2026	Paradigm Capital Management Inc. NY	123,100	$3.44M	0.1%	N/A	0.242%
8/14/2026	Algert Global LLC	14,239	$0.40M	0.0%	-65.1%	0.028%
8/13/2026	Sanctuary Advisors LLC	17,515	$0.49M	0.0%	N/A	0.034%
8/13/2026	Connor Clark & Lunn Investment Management Ltd.	335,541	$9.39M	0.0%	N/A	0.660%
8/13/2026	Globeflex Capital L P	4,496	$0.13M	0.0%	N/A	0.009%
8/12/2026	Commerce Bank	11,445	$0.32M	0.0%	N/A	0.022%
8/12/2026	Emerald Investment Advisers LLC	79,102	$2.21M	0.1%	N/A	0.155%
8/12/2026	Ieq Capital LLC	41,484	$1.16M	0.0%	N/A	0.082%
8/11/2026	Allworth Financial LP	1,527	$43K	0.0%	N/A	0.003%
8/11/2026	B. Metzler seel. Sohn & Co. AG	49,876	$1.40M	0.0%	N/A	0.098%
8/11/2026	Advisors Capital Management LLC	174,496	$4.88M	0.1%	N/A	0.343%
8/10/2026	Diversify Advisory Services LLC	11,993	$0.45M	0.0%	N/A	0.024%
8/7/2026	BlackRock Inc.	4,474,548	$125.20M	0.0%	N/A	8.797%
8/7/2026	Deutsche Bank AG	59,668	$1.67M	0.0%	N/A	0.117%
8/7/2026	Rice Hall James & Associates LLC	134,207	$3.76M	0.2%	N/A	0.264%
8/6/2026	Global Retirement Partners LLC	1,874	$52K	0.0%	N/A	0.004%
8/6/2026	Bank of New York Mellon Corp	141,275	$3.95M	0.0%	N/A	0.278%
7/10/2026	Wasatch Advisors LP	233,604	$6.54M	0.0%	-8.0%	0.461%
7/10/2026	Handelsbanken Fonder AB	22,800	$0.64M	0.0%	+12.3%	0.045%
7/9/2026	First Bank & Trust	8,874	$0.25M	0.0%	-4.4%	0.018%
7/9/2026	Tactive Advisors LLC	13,367	$0.37M	0.1%	N/A	0.026%
7/8/2026	Assenagon Asset Management S.A.	62,334	$1.74M	0.0%	N/A	0.123%
7/7/2026	Harbor Investment Advisory LLC	1,426	$40K	0.0%	N/A	0.003%
5/19/2026	Bank of America Corp DE	768,561	$21.93M	0.0%	+13.7%	1.518%
5/18/2026	Amundi	225,932	$6.45M	0.0%	-2.1%	0.446%
5/18/2026	California State Teachers Retirement System	59,947	$1.71M	0.0%	+33.3%	0.118%
5/18/2026	Royal Bank of Canada	2,184	$61K	0.0%	-30.5%	0.004%
5/16/2026	Quantinno Capital Management LP	9,726	$0.28M	0.0%	N/A	0.019%
5/16/2026	First Light Asset Management LLC	729,521	$20.81M	1.9%	-37.9%	1.441%
5/16/2026	Lazard Asset Management LLC	54,015	$1.54M	0.0%	+8.6%	0.107%
5/15/2026	Rice Hall James & Associates LLC	25,210	$0.72M	0.0%	N/A	0.050%
5/15/2026	Entropy Technologies LP	11,493	$0.33M	0.0%	+26.5%	0.023%
5/14/2026	Renaissance Technologies LLC	308,700	$8.81M	0.0%	-4.1%	0.610%
5/14/2026	Arrowstreet Capital Limited Partnership	277,682	$7.92M	0.0%	N/A	0.548%
5/14/2026	Caxton Associates LLP	10,472	$0.30M	0.0%	+52.1%	0.021%
5/14/2026	Sei Investments Co.	260,788	$7.44M	0.0%	+64.7%	0.515%
5/14/2026	State of Wyoming	3,537	$0.10M	0.0%	+87.7%	0.007%
5/13/2026	First Trust Advisors LP	189,285	$5.40M	0.0%	+60.7%	0.374%
5/7/2026	WCM Investment Management LLC	359,761	$10.17M	0.0%	-3.5%	0.710%
5/7/2026	Dimensional Fund Advisors LP	997,759	$28.47M	0.0%	+8.2%	1.970%
5/7/2026	Parallel Advisors LLC	3,643	$0.10M	0.0%	-10.2%	0.007%
5/6/2026	Bessemer Group Inc.	9,570	$0.27M	0.0%	-71.1%	0.019%
5/5/2026	Bank of New York Mellon Corp	130,650	$3.73M	0.0%	-3.6%	0.258%
5/4/2026	Principal Financial Group Inc.	64,296	$1.83M	0.0%	+45.7%	0.127%
5/2/2026	Diversify Wealth Management LLC	11,631	$0.32M	0.0%	+27.0%	0.023%
5/2/2026	Valmark Advisers Inc.	13,080	$0.37M	0.0%	N/A	0.026%
5/1/2026	Fifth Third Bancorp	1,781	$51K	0.0%	N/A	0.004%
4/24/2026	Perkins Capital Management Inc.	26,100	$0.75M	0.7%	-4.9%	0.052%
4/21/2026	Wasatch Advisors LP	253,931	$7.25M	0.0%	-28.2%	0.502%
4/16/2026	SG Americas Securities LLC	9,627	$0.28M	0.0%	-74.0%	0.019%
4/16/2026	Diversified Trust Co	40,090	$1.14M	0.0%	+7.1%	0.079%
3/20/2026	Hsbc Holdings PLC	17,224	$0.69M	0.0%	+13.3%	0.035%
3/17/2026	Rockefeller Capital Management L.P.	3,983	$0.16M	0.0%	+43.4%	0.008%
2/19/2026	Invesco Ltd.	74,435	$2.95M	0.0%	+7.9%	0.150%
2/18/2026	Mackenzie Financial Corp	13,597	$0.55M	0.0%	+5.3%	0.027%
2/18/2026	XTX Topco Ltd	11,069	$0.44M	0.0%	+88.0%	0.022%
2/18/2026	Voloridge Investment Management LLC	220,290	$8.72M	0.0%	-19.5%	0.443%
2/18/2026	Wellington Management Group LLP	3,917,991	$155M	0.1%	-8.7%	7.880%
2/18/2026	Susquehanna Portfolio Strategies LLC	86,325	$3.42M	0.1%	N/A	0.174%
2/18/2026	Osterweis Capital Management Inc.	203,575	$8.05M	0.3%	-36.8%	0.409%
2/18/2026	Millennium Management LLC	163,795	$6.48M	0.0%	-53.6%	0.329%
2/18/2026	Man Group plc	17,401	$0.69M	0.0%	-70.8%	0.035%
2/18/2026	Engineers Gate Manager LP	58,479	$2.31M	0.0%	+104.2%	0.118%
2/17/2026	PDT Partners LLC	21,201	$0.84M	0.1%	-10.5%	0.043%
2/17/2026	AQR Capital Management LLC	99,956	$3.95M	0.0%	+18.8%	0.201%
2/17/2026	Lazard Asset Management LLC	49,719	$1.97M	0.0%	+6.1%	0.100%
2/17/2026	First Light Asset Management LLC	1,175,445	$46.50M	3.6%	+32.0%	2.364%
2/17/2026	Trexquant Investment LP	77,667	$3.07M	0.0%	+16.8%	0.156%
2/17/2026	Amundi	230,852	$9.13M	0.0%	+5.2%	0.464%
2/17/2026	Jump Financial LLC	16,664	$0.66M	0.0%	-57.9%	0.034%
2/17/2026	Price T Rowe Associates Inc. MD	50,577	$2M	0.0%	+4.4%	0.102%
2/17/2026	Osaic Holdings Inc.	7,184	$0.28M	0.0%	+195.6%	0.014%
2/17/2026	Adage Capital Partners GP L.L.C.	110,210	$4.36M	0.0%	-37.0%	0.222%
2/17/2026	Russell Investments Group Ltd.	14,864	$0.59M	0.0%	+83.0%	0.030%
2/17/2026	Kemnay Advisory Services Inc.	2,892	$0.11M	0.0%	N/A	0.006%

Data available starting January 2016

AtriCure, Inc. develops, manufactures, and sells devices for surgical ablation of cardiac tissue, exclusion of the left atrial appendage, and temporarily blocking pain by ablating peripheral nerves to medical centers in the United States, Europe, the Asia-Pacific, and internationally. The company offers Isolator Synergy Clamps, single-use disposable radio frequency products; multifunctional pens and linear ablation devices, such as the MAX Pen device that enables surgeons to evaluate cardiac arrhythmias, perform temporary cardiac pacing, sensing, and stimulation, and ablate cardiac tissue with the same device; and the Coolrail device, which enables users to make longer linear lines of ablation. It also provides cryoICE Cryoablation System that enables the user to make linear ablations of varied lengths; EPi-Sense Systems, a single-use disposable device used for the treatment of symptomatic, drug-refractory, and long-standing persistent atrial fibrillation; cryoSPHERE probe, which provides temporary pain relief by applying cryothermic energy to targeted intercoastal peripheral nerves in the ribcage; AtriClip System, an implantable device coupled to a single-use disposable applier; and LARIAT System, a suture-based solution for soft-tissue closure. In addition, the company sells Lumitip dissectors to separate tissues to provide access to key anatomical structures that are targeted for ablation; Glidepath guides for placement of clamps; Subtle Cannula's to support access for EPi-Sense catheters; and various reusable cardiac surgery instruments. It markets and sells its products through independent distributors and direct sales personnel. The company was incorporated in 2000 and is headquartered in Mason, Ohio.

Today's Range

Now: $58.10

$57.98

$59.88

50 Day Range

MA: $44.79

$33.00

$59.12

52 Week Range

Now: $58.10

$25.36

$59.88

Volume

8,670,311 shs

Average Volume

959,066 shs

Market Capitalization

$2.96 billion

P/E Ratio

276.68

Dividend Yield

N/A

Beta

1.26

Who are the company insiders with the largest holdings of AtriCure?: AtriCure's top insider investors include:
Michael H Carrel (CEO)
Douglas J Seith (COO)
M Andrew Wade (CFO)
Salvatore Privitera (Insider)
Douglas J Seith (COO)
Justin J Noznesky (SVP)
Justin J Noznesky (Insider)
Vinayak Doraiswamy (Insider)
Douglas Seith (SVP)
Karl S Dahlquist (Insider)
Learn More about top insider investors at AtriCure.
Who are the major institutional investors of AtriCure?: AtriCure's top institutional investors include:
BlackRock Inc. — 8.80%
Wellington Management Group LLP — 6.87%
Bank of America Corp DE — 1.72%
Grandeur Peak Global Advisors LLC — 1.15%
Grandeur Peak Global Advisors LLC — 1.15%
First Light Asset Management LLC — 1.12%
Learn More about top institutional investors of AtriCure stock.
Which institutional investors are selling AtriCure stock?: Within the last quarter, ATRC stock was sold by these institutional investors:
UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
First Light Asset Management LLC
Algert Global LLC
Wasatch Advisors LP
California State Teachers Retirement System
First Bank & Trust
Arizona State Retirement System
During the previous year, company insiders that have sold AtriCure company stock include:
Salvatore Privitera (Insider)
Justin J Noznesky (Insider)
Vinayak Doraiswamy (Insider)
Karl S Dahlquist (Insider)
Sven Wehrwein (Director)
Regina E Groves (Director)
Karen Prange (Director)
Maggie Yuen (Director)
Learn More investors selling AtriCure stock.
Which institutional investors are buying AtriCure stock?: During the last quarter, ATRC stock was acquired by institutional investors including:
BlackRock Inc.
Bank of America Corp DE
Grandeur Peak Global Advisors LLC
Osterweis Capital Management Inc.
Connor Clark & Lunn Investment Management Ltd.
Grandeur Peak Global Advisors LLC
Advisors Capital Management LLC
Meros Investment Management LP