Institutional shares held 51.9 Million
32.6K calls
4.5K puts
Total value of holdings $1.66B
$1.04M calls
$143K puts
Market Cap $1.48B
46,424,700 Shares Out.
Institutional ownership 111.78%
# of Institutions 238


Latest Institutional Activity in ATRC

Top Purchases

Q2 2025
First Bank & Trust Shares Held: 8.34K ($266K)
Q2 2025
Gamma Investing LLC Shares Held: 154 ($4.92K)
Q2 2025
Farther Finance Advisors, LLC Shares Held: 59 ($1.88K)
Q1 2025
Ubs Asset Management Americas Inc Shares Held: 2.2M ($70.1M)
Q1 2025
Nuveen, LLC Shares Held: 951K ($30.3M)

Top Sells

Q2 2025
Assenagon Asset Management S.A. Shares Held: 47K ($1.5M)
Q2 2025
Harbor Capital Advisors, Inc. Shares Held: 26.8K ($856K)
Q1 2025
First Light Asset Management, LLC Shares Held: 1.31M ($42M)
Q1 2025
Champlain Investment Partners, LLC Shares Held: 2.14M ($68.2M)
Q1 2025
Divisadero Street Capital Management, LP Shares Held: 33.7K ($1.08M)

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
364K Shares
From 17 Insiders
Grant, award, or other acquisition 354K shares
Exercise of conversion of derivative security 10K shares
Sell / Disposition
142K Shares
From 13 Insiders
Open market or private sale 12.1K shares
Payment of exercise price or tax liability 122K shares
Bona fide gift 7.59K shares

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