AtriCure CLO acquires 636 shares via ESPP

AtriCure, Inc. reported that Chief Legal Officer Karl S. Dahlquist acquired 636 shares of common stock on June 30, 2026 through the company’s 2018 Employee Stock Purchase Plan.

Rhea-AI Filing Summary

AtriCure, Inc. reported that Chief Legal Officer Karl S. Dahlquist acquired 636 shares of common stock on June 30, 2026 through the company’s 2018 Employee Stock Purchase Plan. The shares were acquired at approximately $23.78 per share, based on 85% of the $27.98 closing price on that date, bringing his direct holdings to 96,689 shares.

Insider Trade Summary

Grant/Award: 636 shares

Grant/Award 1 txn

Insider Dahlquist Karl S.

Role Chief Legal Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	636	$23.78	$15K

Holdings After Transaction: Common Stock — 96,689 shares (Direct)

Footnotes (2)

1. F1. Shares acquired pursuant to the AtriCure, Inc. 2018 Employee Stock Purchase Plan for the period ended June 30, 2026.
2. F2. In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the issuer's common stock on June 30, 2026, which is the last trading day of the applicable offering period. The closing price on June 30, 2026, was $27.98.

Key Figures

Shares acquired: 636 shares Acquisition price: $23.78 per share Holdings after transaction: 96,689 shares +2 more

5 metrics

Shares acquired 636 shares Common stock acquired on June 30, 2026 via 2018 ESPP

Acquisition price $23.78 per share Price used for ESPP acquisition on June 30, 2026

Holdings after transaction 96,689 shares Direct common stock holdings following June 30, 2026 acquisition

Closing price $27.98 per share Issuer’s common stock closing price on June 30, 2026

ESPP discount rate 85% of closing price Plan formula applied to June 30, 2026 closing price

Key Terms

Employee Stock Purchase Plan, ESPP, closing price, offering period

4 terms

Employee Stock Purchase Plan financial

"Shares acquired pursuant to the AtriCure, Inc. 2018 Employee Stock Purchase Plan for the period ended June 30, 2026."

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.

ESPP financial

"In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the issuer's common stock on June 30, 2026."

An Employee Stock Purchase Plan (ESPP) is a company program that lets employees buy the company’s shares at a reduced price, usually by setting aside a small portion of their pay over time. It matters to investors because it encourages employees to own part of the business—like giving staff a discounted membership— which can boost commitment and performance, while also potentially increasing the number of shares available and affecting shareholder value.

closing price financial

"The closing price on June 30, 2026, was $27.98."

offering period financial

"June 30, 2026, which is the last trading day of the applicable offering period."

FAQ

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

What insider transaction did AtriCure (ATRC) report for Karl S. Dahlquist?

AtriCure reported that Chief Legal Officer Karl S. Dahlquist acquired 636 shares of common stock. The shares were obtained through the company’s 2018 Employee Stock Purchase Plan at a discounted price tied to the June 30, 2026 closing price.

At what price did Karl S. Dahlquist acquire AtriCure (ATRC) shares?

Karl S. Dahlquist acquired 636 AtriCure shares at about $23.78 per share. This reflects 85% of the $27.98 closing price of the company’s common stock on June 30, 2026 under the Employee Stock Purchase Plan.

How many AtriCure (ATRC) shares does Karl S. Dahlquist hold after this Form 4 transaction?

After this transaction, Karl S. Dahlquist directly holds 96,689 AtriCure common shares. The increase comes from acquiring 636 shares through the 2018 Employee Stock Purchase Plan for the offering period ended June 30, 2026.

Was the AtriCure (ATRC) insider transaction an open-market purchase?

The transaction was not an open-market trade; it occurred under AtriCure’s 2018 Employee Stock Purchase Plan. Shares were acquired at 85% of the June 30, 2026 closing price, consistent with the plan’s purchase mechanics rather than a discretionary market buy.

What is the role of Karl S. Dahlquist at AtriCure (ATRC)?

Karl S. Dahlquist serves as Chief Legal Officer at AtriCure. In this capacity, he is a reporting person for insider transactions such as the 636-share acquisition disclosed under the company’s 2018 Employee Stock Purchase Plan for the period ended June 30, 2026.

What plan was used for Karl S. Dahlquist’s AtriCure (ATRC) share acquisition?

The acquisition was made under the AtriCure, Inc. 2018 Employee Stock Purchase Plan. The plan allowed him to acquire 636 shares based on 85% of the June 30, 2026 closing price of $27.98 for the applicable offering period.

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

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Accepted by SEC EDGAR 07/02/2026 - 09:03 AM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Dahlquist Karl S.

(Last) (First) (Middle)

7555 INNOVATION WAY

(Street)

MASON OHIO 45040-9695

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AtriCure, Inc. [ ATRC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Legal Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/30/2026		A		636(1)	A	$23.78(2)	96,689	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares acquired pursuant to the AtriCure, Inc. 2018 Employee Stock Purchase Plan for the period ended June 30, 2026.

2. In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the issuer's common stock on June 30, 2026, which is the last trading day of the applicable offering period. The closing price on June 30, 2026, was $27.98.

Remarks:

	/s/ Allison Walker as Attorney-in-fact for Karl S. Dahlquist	07/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)