Douglas J. Seith - 31 Dec 2025 Form 4 Insider Report for AtriCure, Inc. (ATRC)

Role: Chief Operating Officer
Signature: /s/ Allison Walker as Attorney-in-fact for Douglas J. Seith
Issuer symbol: ATRC
Transactions as of: 31 Dec 2025
Net transactions value: +$7,034
Form type: 4
Filing time: 02 Jan 2026, 08:06:24 UTC
Previous filing: 02 Jul 2025
Next filing: 03 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Seith Douglas J	Chief Operating Officer	7555 INNOVATION WAY, MASON	/s/ Allison Walker as Attorney-in-fact for Douglas J. Seith	02 Jan 2026	0001565823

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ATRC	Common Stock	Award	$7,034	+257	+0.14%	$27.37	184,370	31 Dec 2025	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Shares acquired pursuant to the AtriCure, Inc. 2018 Employee Stock Purchase Plan for the period ended December 31, 2025.
F2	In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the issuer's common stock on July 1, 2025, which is the first trading day of the applicable offering period. The closing price on July 1, 2025 was $32.20.