AtriCure officer lists 9,370 shares for Rule 144 sale

AtriCure, Inc. (ATRC) received a Rule 144 notice from officer Karl Scott Dahlquist covering potential sales of its common stock through Morgan Stanley Smith Barney LLC Executive Financial Services on Nasdaq.

Rhea-AI Filing Summary

AtriCure, Inc. (ATRC) received a Rule 144 notice from officer Karl Scott Dahlquist covering potential sales of its common stock through Morgan Stanley Smith Barney LLC Executive Financial Services on Nasdaq. The notice lists 9,370 common shares tied to performance shares, restricted stock, and Employee Stock Purchase Plan acquisitions.

Key Figures

Common shares listed in Securities Information section: 9,370 shares Figure listed alongside ATRC common stock: 458,091.28 Figure listed as third numeric in Securities Information: 50,866,294 +3 more

6 metrics

Common shares listed in Securities Information section 9,370 shares Common stock entry in Rule 144 Securities Information section

Figure listed alongside ATRC common stock 458,091.28 Numeric figure shown in Securities Information row for common stock

Figure listed as third numeric in Securities Information 50,866,294 Third numeric figure in Securities Information row for common stock

Performance Shares entry 3,200 shares Common stock from Performance Shares dated 03/01/2022

Restricted Stock entry 5,368 shares Common stock from Restricted Stock dated 03/01/2024

Employee Stock Purchase Plan entry (06/30/2021) 428 shares Common stock from Employee Stock Purchase Plan dated 06/30/2021

Key Terms

Rule 144, Performance Shares, Restricted Stock, Employee Stock Purchase Plan, +1 more

5 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Performance Shares financial

"Common | 03/01/2022 | Performance Shares | Issuer"

Performance shares are a type of company stock given to executives or employees that only become theirs if the company meets specific goals, like hitting certain profits or growth targets. They motivate leaders to work toward the company’s success, because their additional shares depend on achieving these results.

Restricted Stock financial

"Common | 03/01/2024 | Restricted Stock | Issuer"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Employee Stock Purchase Plan financial

"Common | 06/30/2021 | Employee Stock Purchase Plan | Issuer"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

Executive Financial Services financial

"Common | Morgan Stanley Smith Barney LLC Executive Financial Services"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing related to ATRC disclose?

It discloses that officer Karl Scott Dahlquist has filed a Rule 144 notice for potential sales of AtriCure, Inc. (ATRC) common stock, listing 9,370 shares in the securities information section to be sold through a brokerage firm on Nasdaq.

How many ATRC shares are covered by Karl Dahlquist’s Form 144?

The securities information section lists 9,370 AtriCure common shares in connection with the planned Rule 144 sales, along with related figures of 458,091.28 and 50,866,294 in that same section dated 08/24/2026.

What types of ATRC equity awards underlie the shares in this Form 144?

The shares relate to several equity sources: Performance Shares dated 03/01/2022 for 3,200 shares, Restricted Stock dated 03/01/2024 for 5,368 shares, and multiple Employee Stock Purchase Plan acquisitions totaling several hundred additional shares.

Which broker is named for the potential sale of ATRC shares?

The Rule 144 notice identifies Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, as the brokerage firm involved in handling the potential sale of AtriCure common stock listed in the securities information section.

When was the ATRC Form 144 notice signed by Karl Dahlquist?

The notice was signed by /s/ Karl Scott Dahlquist on 08/24/2026, affirming the information in the Rule 144 filing and including the standard warning that intentional misstatements or omissions may constitute federal criminal violations under 18 U.S.C. 1001.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/24/2026 - 04:12 PM EDT Accepted by SEC EDGAR 08/24/2026 - 04:11 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001861996
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ATRICURE, INC.
SEC File Number	000-51470
Address of Issuer	7555 Innovation Way Mason OHIO 45040
Phone	(513) 755-4100
Name of Person for Whose Account the Securities are To Be Sold	KARL DAHLQUIST
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	9370	458091.28	50866294	08/24/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/01/2022	Performance Shares	Issuer			3200	03/01/2022	Not Applicable
Common	03/01/2024	Restricted Stock	Issuer			5368	03/01/2024	Not Applicable
Common	06/30/2021	Employee Stock Purchase Plan	Issuer			428	06/30/2021	Cash
Common	12/31/2021	Employee Stock Purchase Plan	Issuer			24	12/31/2021	Cash
Common	06/30/2022	Employee Stock Purchase Plan	Issuer			350	06/30/2022	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/24/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Karl Scott Dahlquist
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)