AtriCure (ATRC) insider plans NASDAQ sale of 3,564 awarded shares

Rhea-AI Filing Summary

AtriCure, Inc. insider Karen Prange filed a notice of intent to sell 3,564 shares of common stock held through Fidelity Brokerage Services LLC on NASDAQ. These shares relate to a stock award dated May 26, 2023. AtriCure had 50,866,294 shares of common stock outstanding in connection with this notice. Over the prior three months, Prange sold 1,000 shares of common stock for $28,759.40 on May 20, 2026 and 2,000 shares for $57,188.82 on May 21, 2026.

Key Figures

Proposed shares to be sold: 3,564 shares Shares outstanding: 50,866,294 shares Prior sale on May 20, 2026: 1,000 shares for $28,759.40 +2 more

5 metrics

Proposed shares to be sold 3,564 shares Common stock to be sold through Fidelity on NASDAQ

Shares outstanding 50,866,294 shares Common stock outstanding in connection with this notice

Prior sale on May 20, 2026 1,000 shares for $28,759.40 Common stock sold during the past three months

Prior sale on May 21, 2026 2,000 shares for $57,188.82 Common stock sold during the past three months

Stock award date May 26, 2023 Grant date of the stock award underlying the proposed sale

Key Terms

Form 144, stock award, securities sold during the past 3 months

3 terms

Form 144 regulatory

"Karen Prange filed a notice of intent to sell under Form 144"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

stock award financial

"These shares relate to a stock award dated May 26, 2023"

securities sold during the past 3 months financial

"The filing lists securities sold during the past 3 months"

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Available on EDGAR 08/05/2026 - 07:13 AM Accepted by SEC EDGAR 08/05/2026 - 07:13 AM Learn about SEC filing dates

FAQ

What stock sale is disclosed for AtriCure (ATRC) in this Form 144?

The filing discloses a planned sale of 3,564 shares of AtriCure common stock held via Fidelity Brokerage Services LLC, relating to a May 26, 2023 stock award, to be sold on NASDAQ.

Who is the selling security holder in AtriCure (ATRC)'s Form 144?

The selling security holder is Karen Prange, with shares held through Fidelity Brokerage Services LLC. The shares stem from a stock award granted on May 26, 2023 and are proposed for sale on NASDAQ.

How many AtriCure (ATRC) shares has the insider sold in the past 3 months?

Over the past three months, the insider sold 3,000 shares of AtriCure common stock: 1,000 shares for $28,759.40 on May 20, 2026 and 2,000 shares for $57,188.82 on May 21, 2026.

What is the size of the proposed AtriCure (ATRC) stock sale relative to shares outstanding?

The proposed sale covers 3,564 shares of AtriCure common stock. AtriCure reported 50,866,294 shares of common stock outstanding in connection with this notice, providing context for the transaction’s scale.

On which market will the AtriCure (ATRC) shares be sold under this notice?

The 3,564 shares of AtriCure common stock covered by the notice are to be sold on the NASDAQ market. The shares are held in an account at Fidelity Brokerage Services LLC.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	Fidelity Brokerage Services LLC 245 Summer Street Boston MA 02110	3564	138996.00	50866294	08/05/2026	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 Stock	05/26/2023	Stock Award	Issuer			3564	05/26/2023	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Karen Prange c/o AtriCure, Inc. 7555 INNOVATION WAY Mason OH 45040	Common	05/20/2026	1000	28759.40
Karen Prange c/o AtriCure, Inc. 7555 INNOVATION WAY Mason OH 45040	Common	05/21/2026	2000	57188.82

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)