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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * JOHNSTON RICHARD M   2. Issuer Name and Ticker or Trading Symbol AtriCure, Inc. [ATRC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) __X__ Other (specify below) See Remarks (Last) (First) (Middle) C/O CAMDEN PARTNERS HOLDINGS, LLC, 500 E. PRATT STREET, SUITE 1200 3. Date of Earliest Transaction (Month/Day/Year) 06/11/2013 (Street) BALTIMORE, MD 21202 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) 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 06/11/2013   S   10,252 D $ 9.01 858,353 I See footnote (1) Common Stock 06/11/2013   S   608 D $ 9.01 50,919 I See footnote (2) Common Stock 06/12/2013   S   23,139 D $ 9.01 835,214 I See footnote (1) Common Stock 06/12/2013   S   1,373 D $ 9.01 49,546 I See footnote (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
JOHNSTON RICHARD M C/O CAMDEN PARTNERS HOLDINGS, LLC 500 E. PRATT STREET, SUITE 1200 BALTIMORE, MD 21202	X			See Remarks
CAMDEN PARTNERS STRATEGIC II LLC C/O CAMDEN PARTNERS HOLDINGS, LLC 500 EAST PRATT STREET SUITE 1200 BALTIMORE, MD 21202				See Remarks
CAMDEN PARTNERS STRATEGIC FUND II A LP C/O CAMDEN PARTNERS HOLDINGS, LLC 500 EAST PRATT STREET SUITE 1200 BALTIMORE, MD 21202				See Remarks
CAMDEN PARTNERS STRATEGIC FUND II B LP C/O CAMDEN PARTNERS HOLDINGS, LLC 500 EAST PRATT STREET SUITE 1200 BALTIMORE, MD 21202				See Remarks
WARNOCK DAVID L C/O CAMDEN PARTNERS HOLDINGS, LLC 500 EAST PRATT STREET SUITE 1200 BALTIMORE, MD 21202				See Remarks
HUGHES DONALD W C/O CAMDEN PARTNERS HOLDINGS, LLC 500 EAST PRATT STREET SUITE 1200 BALTIMORE, MD 21202				See Remarks
BERKELEY RICHARD M C/O CAMDEN PARTNERS HOLDINGS, LLC 500 E. PRATT STREET SUITE 1200 BALTIMORE, MD 21202	X			See Remarks

Signatures

/s/ Donald W. Hughes, Attorney-in-Fact for Richard M. Johnston		06/13/2013
**Signature of Reporting Person		Date
/s/ By Camden Partners Strategic II, LLC, By Donald W. Hughes, Managing Member		06/13/2013
**Signature of Reporting Person		Date
/s/ By Camden Partners Strategic Fund II-A, LP, By Camden Partners Strategic II, LLC, By Donald W. Hughes, Managing Member		06/13/2013
**Signature of Reporting Person		Date
/s/ By Camden Partners Strategic Fund II-B, LP, By Camden Partners Strategic II, LLC, By Donald W. Hughes, Managing Member		06/13/2013
**Signature of Reporting Person		Date
/s/ Donald W. Hughes, Attorney-in-Fact for David L. Warnock		06/13/2013
**Signature of Reporting Person		Date
/s/ Donald W. Hughes, Attorney-in-Fact for Richard M. Berkeley		06/13/2013
**Signature of Reporting Person		Date
/s/ Donald W. Hughes		06/13/2013
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	These securities are owned directly by Fund II-A. CPS II, Fund II-B, Mr. Richard M. Johnston and the Managing Members may be deemed indirect beneficial owners of the securities held directly by Fund II-A as a result of their relationships described in the Remarks. CPS II, Fund II-B, Mr. Richard M. Johnston and each of the Managing Members disclaims beneficial ownership of the securities held directly by Fund II-A, except to the extent of its or his pecuniary interest therein.
(2)	These securities are owned directly by Fund II-B. CPS II, Fund II-A, Mr. Richard M. Johnston and the Managing Members may be deemed indirect beneficial owners of the securities held directly by Fund II-B as a result of their relationships described in the Remarks. CPS II, Fund II-A, Mr. Richard M. Johnston and each of the Managing Members disclaims beneficial ownership of the securities held directly by Fund II-B, except to the extent of its or his pecuniary interest therein.
Remarks: This Form 4 is being filed jointly by Mr. Richard M. Johnston, Camden Partners Strategic II, LLC ("CPS II"), Camden Strategic Fund II-A, LP ("Fund II-A") and Camden Strategic Fund II-B, LP ("Fund II-B") and Messrs. David L. Warnock, Donald W. Hughes and Richard M. Berkeley (collectively, the "Managing Members" and together with CPS II, Fund II-A and Fund II-B, the "Reporting Persons"). The Managing Members are the managing members of CPS II. CPS II is the general partner of Fund II-A and Fund II-B. Mr. Johnston is a director of the Issuer and formerly was a managing member of Camden Partners Holdings, LLC, which provides investment and management advisory services to Fund II-A and Fund II-B.

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