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).

1. Name and Address of Reporting Person* JOHNSTON RICHARD M (Last) (First) (Middle) C/O CAMDEN PARTNERS HOLDINGS, LLC 500 E. PRATT STREET, SUITE 1200 (Street) BALTIMORE MD 21202 (City) (State) (Zip)	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
	3. Date of Earliest Transaction (Month/Day/Year) 08/02/2013
	4. If Amendment, Date of 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

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	08/02/2013		S		11,894	D	$10	665,699	I	See footnote(1)
Common Stock	08/02/2013		S		706	D	$10	39,490	I	See footnote(2)
Common Stock	08/05/2013		S		7,030	D	$10	658,669	I	See footnote(1)
Common Stock	08/05/2013		S		417	D	$10	39,073	I	See footnote(2)

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

1. Name and Address of Reporting Person* JOHNSTON RICHARD M (Last) (First) (Middle) C/O CAMDEN PARTNERS HOLDINGS, LLC 500 E. PRATT STREET, SUITE 1200 (Street) BALTIMORE MD 21202 (City) (State) (Zip)

1. Name and Address of Reporting Person* CAMDEN PARTNERS STRATEGIC II LLC (Last) (First) (Middle) C/O CAMDEN PARTNERS HOLDINGS, LLC 500 EAST PRATT STREET SUITE 1200 (Street) BALTIMORE MD 21202 (City) (State) (Zip)

1. Name and Address of Reporting Person* CAMDEN PARTNERS STRATEGIC FUND II A LP (Last) (First) (Middle) C/O CAMDEN PARTNERS HOLDINGS, LLC 500 EAST PRATT STREET SUITE 1200 (Street) BALTIMORE MD 21202 (City) (State) (Zip)

1. Name and Address of Reporting Person* CAMDEN PARTNERS STRATEGIC FUND II B LP (Last) (First) (Middle) C/O CAMDEN PARTNERS HOLDINGS, LLC 500 EAST PRATT STREET SUITE 1200 (Street) BALTIMORE MD 21202 (City) (State) (Zip)

1. Name and Address of Reporting Person* WARNOCK DAVID L (Last) (First) (Middle) C/O CAMDEN PARTNERS HOLDINGS, LLC 500 EAST PRATT STREET SUITE 1200 (Street) BALTIMORE MD 21202 (City) (State) (Zip)

1. Name and Address of Reporting Person* HUGHES DONALD W (Last) (First) (Middle) C/O CAMDEN PARTNERS HOLDINGS, LLC 500 EAST PRATT STREET SUITE 1200 (Street) BALTIMORE MD 21202 (City) (State) (Zip)

Explanation of Responses:

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 Partners Strategic Fund II-A, LP ("Fund II-A") and Camden Partners Strategic Fund II-B, LP ("Fund II-B") and Messrs. David L. Warnock and Donald W. Hughes (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.

	/s/ Donald W. Hughes, Attorney-in-Fact for Richard M. Johnston	08/06/2013
	/s/ By Camden Partners Strategic II, LLC, By Donald W. Hughes, Managing Member	08/06/2013
	/s/ By Camden Partners Strategic Fund II-A, LP, By Camden Partners Strategic II, LLC, By Donald W. Hughes, Managing Member	08/06/2013
	/s/ By Camden Partners Strategic Fund II-B, LP, By Camden Partners Strategic II, LLC, By Donald W. Hughes, Managing Member	08/06/2013
	/s/ Donald W. Hughes, Attorney-in-Fact for David L. Warnock	08/06/2013
	/s/ Donald W. Hughes	08/06/2013
	** 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).
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