Institutional shares held 52.2 Million
33.5K calls
0 puts
Total value of holdings $1.67B
$1.07M calls
$0 puts
Market Cap $1.49B
46,424,700 Shares Out.
Institutional ownership 112.42%
# of Institutions 228


Latest Institutional Activity in ATRC

Top Purchases

Q3 2025
Massachusetts Financial Services CO Shares Held: 425K ($13.6M)
Q3 2025
Citigroup Inc Shares Held: 57.1K ($1.83M)
Q3 2025
Riverwater Partners LLC Shares Held: 60.3K ($1.93M)
Q3 2025
Charles Schwab Investment Management Inc Shares Held: 428K ($13.7M)
Q3 2025
Semanteon Capital Management, LP Shares Held: 16K ($513K)

Top Sells

Q3 2025
Vanguard Group Inc Shares Held: 4.84M ($155M)
Q3 2025
Jpmorgan Chase & CO Shares Held: 227K ($7.27M)
Q3 2025
Sg Americas Securities, LLC Shares Held: 23.4K ($750K)
Q3 2025
Quest Partners LLC Shares Held: 1.01K ($32.5K)
Q3 2025
Strs Ohio Shares Held: 12.2K ($391K)

About ATRC

AtriCure, Inc. develops, manufactures, and sells devices for the surgical ablation of cardiac tissue and systems, and intercostal nerves to medical centers in the United States, Europe, Asia, and internationally. The company offers Isolator Synergy Clamps, a 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 enable 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 Guided Coagulation System, a single-use disposable device used for the treatment of symptomatic, drug-refractory, and long-standing persistent atrial fibrillation; AtriClip System, an implantable device coupled to a single-use disposable applier; and LARIAT System, a suture-based solution for soft-tissue closure compatible with a range of anatomical shapes. 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, which are used during surgical procedures for repair or replacement of certain heart valves. 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.


Insider Transactions at ATRC

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
374K Shares
From 18 Insiders
Grant, award, or other acquisition 354K shares
Exercise of conversion of derivative security 20K shares
Sell / Disposition
153K Shares
From 15 Insiders
Payment of exercise price or tax liability 122K shares
Bona fide gift 4.59K shares
Open market or private sale 26.6K shares

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