ATRICURE INC (ATRC) Institutional Ownership and Insiders Activity

ATRICURE INC (ATRC) is widely held by institutional investors, with 2 tracked firms reporting positions valued at approximately $16.29M based on SEC Form 13F filings for the quarter ended March 31, 2026.

Renaissance Technologies LLC is the largest disclosed holder, reporting approximately $8.81M in ATRC holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Renaissance Technologies LLC representing the majority of disclosed value.