JK Acquisition Corp. - Statement of Ownership (SC 13G)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. )*

JK Acquisition Corp.

(Name of Issuer)

Common Stock, $0.001 par value per share

(Title of Class of Securities)

47759H106

(CUSIP Number)

February 21, 2008

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

¨	Rule 13d-1(b)

x	Rule 13d-1(c)

¨	Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Page 1 of 8

CUSIP No. 47759H106



1. Names of Reporting Persons.

QVT Financial LP

I.R.S. Identification Nos. of above persons (entities only).

11-3694008

2. Check the Appropriate Box if a Member of a Group (See Instructions)



		(a) ¨ (b) x

3. SEC Use Only



4. Citizenship or Place of Organization…Delaware


Number of Shares Beneficially Owned by Each Reporting Person With:		5. Sole Voting Power…0
		6. Shared Voting Power…860,900
		7. Sole Dispositive Power…0
		8. Shared Dispositive Power…860,900



9. Aggregate Amount Beneficially Owned by Each Reporting Person…860,900



10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ¨



11. Percent of Class Represented by Amount in Row (9) 5.21%



12 Type of Reporting Person (See Instructions) PN .

Page 2 of 8

CUSIP No. 47759H106



1. Names of Reporting Persons.

QVT Financial GP LLC

I.R.S. Identification Nos. of above persons (entities only).

11-3694007



2. Check the Appropriate Box if a Member of a Group (See Instructions)

		(a) ¨ (b) x



3. SEC Use Only



4. Citizenship or Place of Organization…Delaware


Number of Shares Beneficially Owned by Each Reporting Person With:		5. Sole Voting Power…0
		6. Shared Voting Power…860,900
		7. Sole Dispositive Power…0
		8. Shared Dispositive Power…860,900



9. Aggregate Amount Beneficially Owned by Each Reporting Person…860,900



10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ]



11. Percent of Class Represented by Amount in Row (9) 5.21%



12. Type of Reporting Person (See Instructions) OO

Page 3 of 8


Item 1(a).		Name of Issuer

		JK Acquisition Corp. (the “Issuer”)

Item 1(b).		Address of Issuer’s Principal Executive Offices

		The address of the Issuer’s principal executive offices is: 4400 Post Oak Parkway, Suite 2530, Houston, Texas 77027, United States

Item 2(a).		Name of Person Filing

Item 2(b).		Address of Principal Business Office or, if none, Residence

Item 2(c).		Citizenship

		QVT Financial LP

		1177 Avenue of the Americas, 9th Floor
		New York, New York 10036
		Delaware Limited Partnership

		QVT Financial GP LLC
		1177 Avenue of the Americas, 9th Floor
		New York, New York 10036
		Delaware Limited Liability Company

Item 2(d).		Title of Class of Securities

		Common stock, $0.001 par value per share (the “Common Stock”).

Item 2(e).		CUSIP Number

		The CUSIP number of the Common Stock is 47759H106.

Item 3.		If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)		¨ Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b)		¨ Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c)		¨ Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d)		¨ Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e)		¨ An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f)		¨ An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g)		¨ A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h)		¨ A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)		¨ A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

Page 4 of 8



(j)		¨ Group, in accordance with § 240.13d-1(b)(1)(ii)(J).

Item 4. Ownership.

(a)		Amount beneficially owned:

		QVT Financial LP (“QVT Financial”) is the investment manager for QVT Fund LP (the “Fund”), which beneficially owns 708,610 shares of Common Stock, and for Quintessence Fund L.P. (“Quintessence”), which beneficially owns 80,197 shares of Common Stock. QVT Financial is also the investment manager for a separate discretionary account managed for Deutsche Bank AG (the “Separate Account”), which holds 72,093 shares of Common Stock. QVT Financial has the power to direct the vote and disposition of the Common Stock held by the Fund, Quintessence and the Separate Account. Accordingly, QVT Financial may be deemed to be the beneficial owner of an aggregate amount of 860,900 shares of Common Stock, consisting of the shares owned by the Fund and Quintessence and the shares held in the Separate Account.

		QVT Financial GP LLC, as General Partner of QVT Financial, may be deemed to beneficially own the same number of shares of Common Stock reported by QVT Financial.

		QVT Financial and QVT Financial GP LLC acquired beneficial ownership of more than 5% of the class of equity securities on February 21, 2008. The reported share amounts reflect amounts beneficially owned by the reporting persons as of that date, as adjusted for subsequent transactions through the date hereof.

		Each of QVT Financial and QVT Financial GP LLC disclaims beneficial ownership of the shares of Common Stock owned by the Fund and Quintessence and held in the Separate Account.

		The percentage disclosed in Item 11 of the Cover Pages for each reporting person is calculated based upon 16,516,667 shares of Common Stock outstanding, which is the total number of shares issued and outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2007.

(b)		Percent of class:

		See Item 11 of the Cover Pages to this Schedule 13G.

(c)		Number of shares as to which the person has:

		(i) Sole power to vote or to direct the vote

		0

		(ii) Shared power to vote or to direct the vote

		See item (a) above.

		(iii) Sole power to dispose or to direct the disposition of

		0

		(iv) Shared power to dispose or to direct the disposition of

		See item (a) above.

Page 5 of 8

Item 5.

Ownership of Five Percent or Less of a Class

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following….[ ].

Item 6.

Ownership of More than Five Percent on Behalf of Another Person.

Not Applicable

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company

Not Applicable

Item 8.

Identification and Classification of Members of the Group

Not Applicable

Item 9.

Notice of Dissolution of Group

Not Applicable

Item 10.

Certification

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

Page 6 of 8

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: February 27, 2008

QVT FINANCIAL LP

By QVT Financial GP LLC,

its General Partner


By:		/s/ Lars Bader
Name:		Lars Bader
Title:		Managing Member


By:		/s/ Tracy Fu
Name:		Tracy Fu
Title:		Managing Member


QVT FINANCIAL GP LLC

By:		/s/ Lars Bader
Name:		Lars Bader
Title:		Managing Member

By:		/s/ Tracy Fu
Name:		Tracy Fu
Title:		Managing Member

Page 7 of 8

EXHIBIT A

JOINT FILING AGREEMENT

The undersigned hereby agree that the statement on Schedule 13G signed by each of the undersigned shall be filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.

Dated: February 27, 2008


QVT FINANCIAL LP

By QVT Financial GP LLC,
its General Partner

By:		/s/ Lars Bader
Name:		Lars Bader
Title:		Managing Member

By:		/s/ Tracy Fu
Name:		Tracy Fu
Title:		Managing Member

QVT FINANCIAL GP LLC

By:		/s/ Lars Bader
Name:		Lars Bader
Title:		Managing Member

By:		/s/ Tracy Fu
Name:		Tracy Fu
Title:		Managing Member