Qiagen N.V.

Under the Securities Exchange Act of 1934

Ordinary Shares, par value €0.01 per share

c/o Davidson Kempner Capital Management LP

(Name, Address and Telephone Number of Person

Authorized to Receive Notices and Communications)

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), Rule 13d-1(f) or Rule 13d-1(g), check the following box. ¨

* 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 disclosures provided in a prior cover page.

The information required on 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).

CUSIP No. N72482123 SCHEDULE 13D Page 2 of 18 Pages

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) ¨

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON

12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ¨

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

CUSIP No. N72482123 SCHEDULE 13D Page 3 of 18 Pages

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) ¨

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON

12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ¨

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

CUSIP No. N72482123 SCHEDULE 13D Page 4 of 18 Pages

5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) ¨

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON

12 CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES ¨

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

CUSIP No. N72482123 SCHEDULE 13D Page 5 of 18 Pages

This statement on Schedule 13D (the "Schedule 13D") relates to the Ordinary Shares, par value €0.01 per share (the "Ordinary Shares") of QIAGEN N.V. , a public limited liability company organized under the laws of The Netherlands (the "Issuer"). The Issuer's principal executive offices are located at Hulsterweg 82, 5912 PL Venlo, The Netherlands.

(a) This Statement is filed by each of the entities and persons listed below, all of whom together are referred to herein as the "Reporting Persons":

(i) Burlington Loan Management DAC, a designated activity company limited by shares organized under the laws of Ireland ("Burlington"). DKCM (as defined below) is the investment manager of Burlington. DKCM is responsible for the voting and investment decisions of Burlington;

(iii) Anthony A. Yoseloff, through DKCM, is responsible for the voting and investment decisions relating to the securities held by Burlington reported herein.

Any disclosures herein with respect to persons other than the Reporting Persons are made on information and belief after making inquiry to the appropriate party.

The filing of this statement should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of the securities reported herein.

(b) The address of the principal business office of Burlington is 5th Floor, The Exchange, George's Dock, IFSC, Dublin 1, D01 W3P9. The address of the principal business office of each of the other Reporting Persons is c/o Davidson Kempner Capital Management LP, 520 Madison Avenue, 30th Floor, New York, New York 10022.

CUSIP No. N72482123 SCHEDULE 13D Page 6 of 18 Pages

(c) The principal business of Burlington is to invest in securities. The principal business of DKCM is the management of the affairs of Burlington and investment funds. The principal business of Mr. Anthony A. Yoseloff is to invest for funds and accounts under his management.

(d) None of the Reporting Persons has, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).

(e) None of the Reporting Persons has, during the last five years, been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and, as a result of such proceeding, was, or is subject to, a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, Federal or State securities laws or finding any violation with respect to such laws.

Schedule A attached hereto sets forth the information required by Instruction C of the instructions to Schedule 13D.

(f) (i) Burlington - an Irish designated activity company limited by shares

(ii) DKCM - a Delaware limited partnership

Item 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION