6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

Pursuant to Rule 13a-16 or 15d-16 of the

Securities Exchange Act of 1934

For the month of April 2013

FRESENIUS MEDICAL CARE AG & Co. KGaA

(Translation of registrant’s name into English)

Else-Kröner Strasse 1

61346 Bad Homburg

Germany

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F   x                                         Form 40-F   o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes   o                                                      No   x

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82

On April 8, 2013 the Company published in the German -Bundesanzeiger (Federal Gazette) the invitation and agenda for its 2013 Annual General Meeting (“AGM”) of Shareholders to be held May 16, 2013 and the invitation and agenda for a separate meeting of Preference Shareholders to be held on the same date. The invitation and agenda for each meeting is accompanied by a report of the Company’s General Partner on a proposal to simplify the Company’s capital structure through the conversion of all of the Company’s preference shares into ordinary shares (the “Conversion Proposal”). The proposed preference share conversion would be effected by amendments to the Company’s Satzung (Articles of Association) that will be submitted for shareholder approval at the respective meetings.  The foregoing description of the Conversion Proposal is qualified in its entirety by the complete descriptions contained in each invitation and agenda, including the General Partner’s report on the Conversion Proposal that accompanies each agenda and invitation.

Also on April 8, 2013, the Company furnished under cover of a Report on Form 6-K (the “April 8 Form 6-K”) convenience translations of the invitation and agenda for each meeting, the General Partner’s report on the Conversion Proposal and convenience translations of two other reports referred to in the AGM invitation — the report of the Company’s Supervisory Board and the report of the Company’s General Partner pursuant to § 289 ss. 4 and § 315 ss. 4 of the German Commercial Code.  The Company also furnished with the April 8 Form 6-K certain additional information (the “Supplemental Information”) that the Company has agreed to make available to its ADR holders pursuant to the Pooling Agreement among the Company, the Company’s General Partner, Fresenius SE & Co. KGaA, and the Company’s independent directors designated in the Pooling Agreement.  For a description of the contents of the Supplemental Information, see the April 8 Form 6-K.  Copies of the invitation and agenda for each meeting, the General Partner’s report on the Proposed Conversion, the respective additional reports of the Company’s Supervisory Board and of the Company’s General Partner pursuant to the German Commercial Code, and the Supplemental Information, have also been posted on the Company’s web site, www.fmc-ag.com.

On or about April 17, 2013 the Depositary for the Company’s ordinary share and preference share American Depositary Receipts (“ADRs”) will distribute (1) to ordinary share ADR holders (a) the AGM invitation and agenda, (b) the Report of the Company’s General Partner on the Conversion Proposal, (c) a voting instruction card for ordinary share ADR holders and (d) the Report of the Company’s Supervisory Board and (2) to preference share ADR holders (a) the AGM invitation and agenda, (b) the invitation and agenda for the separate meeting of Preference Shareholders, (c) the Report of the Company’s General Partner on the Conversion Proposal and (d) a voting instruction card for preference share ADR holders. The Company is now furnishing copies of each voting instruction card with this Report on Form 6-K.  The Company has also furnished the Supplemental Information to the ADR Depositary, which will provide copies of the Supplemental Information to ADR holders without charge upon request made to the Depositary.

The Company’s Annual Report on Form 20-F and the Company’s 2012 Annual Report have each been posted on the Company’s web site.

2

EXHIBITS

The following exhibits are being furnished with this Report:

Exhibit 99.1Voting Instruction Card for holders of ordinary share ADRS.

Exhibit 99.2Voting Instruction Card for holders of preference share ADRS.

3

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

DATE: April 18, 2013

FRESENIUS MEDICAL CARE AG & Co. KGaA,
a partnership limited by shares, represented by:
FRESENIUS MEDICAL CARE MANAGEMENT AG, its
general partner
	By:	/s/ RICE POWELL
	Name:	Rice Powell
	Title:	Chief Executive Officer and
		Chairman of the Management Board
		of the General Partner
	By:	/s/ MICHAEL BROSNAN
	Name:	Michael Brosnan
	Title:	Chief Financial Officer and
		Member of the Management Board
		of the General Partner

4

EX-99.1

Exhibit 99.1

76174 Fresenius Common Proof 7 Ordinary General Meeting of Fresenius Medical care AG & co. KGaA Date: May 16, 2013 See Voting Instruction On Reverse Side. Please make your marks like this: xUse pen only • Mark, sign and date your Voting Instruction Form. • Detach your Voting Instruction Form. • Return your Voting Instruction Form in the postage-paid envelope provided. MAiL Please Sign Here Please Date Above Please Sign Here Please Date Above vnPlease separate carefully at the perforation and return just this portion in the envelope provided. · Authorized signatures - This section must be completed for your instructions to be executed. eVenT # cLienT # Ordinary General Meeting of Fresenius Medical care AG & co. KGaA to be held May 16, 2013 For Holders as of April 8, 2013 All votes must be received prior to 5:00 p.m. new York city Time May 8, 2013. Copyright © 2013 Mediant Communications LLC. All Rights Reserved PROXY TABULATOR FOR FReseniUs MedicAL cARe AG & cO. KGAA P.O. BOX 8016 cARY, nc 27512-9903 Directors Recommend For Against Abstain 1. Resolution on the approval of the annual financial statements of Fresenius Medical Care AG & Co. KGaA for fiscal year 2012 2. Resolution on the allocation of distributable profit 3. Resolution on the approval of the actions of the General Partner 4. Resolution on the approval of the actions of the members of the Supervisory Board 5. Election of the auditors and consolidated group auditors for fiscal year 2013 6. Resolution on the conversion of non-voting bearer preference shares into voting bearer ordinary shares by cancelling the preference in terms of dividend payments and amendments of the Articles of the Company 7. Resolution on the amendment to the 2001 International Employee Participation Program and on the amendment to the conditional capital pursuant to section 4 (5) of the Articles of the Company 8. Special resolution of the ordinary shareholders on the approval of the resolution on the conversion of non-voting bearer preference shares into voting bearer ordinary shares and amendments to the Articles of the Company and on the approval of the resolutions on the amendment to the 2001 International Employee Participation Program and to the conditional capital pursuant to section 4 (5) of the Articles of the Company 9. Amendment to section 15 of the Articles of the Company (Attendance at the General Meeting and exercise of the voting right) 76174 Fresenius Common VIF_Layout 1 4/17/13 9:23 AM Page 1

76174 Fresenius Common Proof 7 FReseniUs MedicAL cARe AG & co. KGaA instructions to The Bank of new York Mellon, as depositary Bank (Must be received prior to 5:00 p.m. new York city time on May 8, 2013) The undersigned registered holder of one or more American Depositary Receipts (“Receipts”) of Fresenius Medical Care AG & Co. KGaA (the “Company”) representing ordinary shares hereby requests and instructs The Bank of New York Mellon, as Depositary Bank, to vote or cause to be voted in accordance with the instructions marked on the reverse side hereof, the number of ordinary shares of the Company represented by such Receipt(s) registered in the name of the undersigned on the books of the Depositary Bank as of the close of business on April 8, 2013, at the Ordinary General Meeting of Shareholders of Fresenius Medical Care AG & Co. KGaA to be held on May 16, 2013, in respect of the agenda items specified in the accompanying invitation. The depositary Bank shall not vote or attempt to exercise the voting right attached to the shares or other deposited securities other than in accordance with the specific voting instruction from an owner prior to the instruction date. As provided in the Receipts, if no specific voting instruction is received from an owner prior to the instruction date, that owner shall be deemed to have instructed the depositary Bank to give a proxy to the custodian, which will act as the proxy bank in accordance with section 135 of the German stock corporation Act, to vote in accordance with the recommendation with regard to voting of the shares pursuant to section 135 (3) of the German stock corporation Act as to any matter concerning which the notice from the company indicates that a vote is to be taken by holders of shares. PROXY TABULATOR FOR FRESENIUS MEDICAL CARE AG & CO. KGAA P.O. Box 8016 CARY, NC 27512-9903 76174 Fresenius Common VIF_Layout 1 4/17/13 9:23 AM Page 2

EX-99.2

Exhibit 99.2

76176 Fresenius Preference Proof 5 Separate Meeting of Preference Shareholders of Fresenius Medical Care AG & Co. KGaA Date: May 16, 2013 See Voting Instruction On Reverse Side. Please make your marks like this: xUse pen only • Mark, sign and date your Voting Instruction Form. • Detach your Voting Instruction Form. • Return your Voting Instruction Form in the postage-paid envelope provided. MAIL _____________________________________ __________________________ Please Sign Here Please Date Above _____________________________________ __________________________ Please Sign Here Please Date Above · Please separate carefully at the perforation and return just this portion in the envelope provided. · Authorized Signatures - This section must be completed for your instructions to be executed. EVENT # CLIENT # Separate Meeting of Preference Shareholders of Fresenius Medical Care AG & Co. KGaA to be held May 16, 2013 For Holders as of April 8, 2013 All votes must be received prior to 5:00 p.m. New York City Time May 8, 2013. Copyright © 2013 Mediant Communications LLC. All Rights Reserved PROXY TABULATOR FOR FRESENIUS MEDICAL CARE AG & Co. KGAA P.O. BOX 8016 CARY, NC 27512-9903 Directors Recommend For Against Abstain 1. Special resolution of the preference shareholders on the approval of the resolutions presumably passed by the ordinary General Meeting of 16 May 2013 under agenda item 6 regarding the conversion of non-voting bearer preference shares into voting bearer ordinary shares and amendments to the Articles of the Company 2. Special resolution of the preference shareholders on the approval to the presumed resolutions of the General Meeting of the Company of 16 May 2013 under agenda item 7 on the amendment to the 2001 International Employee Participation Program and on the amendment to the conditional capital pursuant to section 4 (5) of the Articles of the Company 76176 Fresenius Preferred VIF_Layout 1 4/16/13 10:26 AM Page 1

76176 Fresenius Preference Proof 5 FRESENIUS MEDICAL CARE AG & Co. KGaA Instructions to The Bank of New York Mellon, as Depositary Bank (Must be received prior to 5:00 p.m. New York City time on May 8, 2013) The undersigned registered holder of one or more American Depositary Receipts (“Receipts”) of Fresenius Medical Care AG & Co. KGaA (the “Company”) representing preference shares hereby requests and instructs The Bank of New York Mellon, as Depositary Bank, to vote or cause to be voted in accordance with the instructions marked on the reverse side hereof, the number of preference shares of the Company represented by such Receipt(s) registered in the name of the undersigned on the books of the Depositary Bank as of the close of business on April 8, 2013, at the Separate Meeting of Preference Shareholders of Fresenius Medical Care AG & Co. KGaA to be held on May 16, 2013, in respect of the agenda items specified in the accompanying invitation. The Depositary Bank shall not vote or attempt to exercise the voting right attached to the shares or other deposited securities other than in accordance with the specific voting instruction from an owner prior to the instruction date. As provided in the Receipts, if no specific voting instruction is received from an owner prior to the instruction date, that owner shall be deemed to have instructed the Depositary Bank to give a proxy to the custodian, which will act as the proxy bank in accordance with section 135 of the German Stock Corporation Act, to vote in accordance with the recommendation with regard to voting of the shares pursuant to section 135 (3) of the German Stock Corporation Act as to any matter concerning which the notice from the company Indicates that a vote is to be taken by holders of shares. PROXY TABULATOR FOR FRESENIUS MEDICAL CARE AG & CO. KGAA P.O. Box 8016 CARY, NC 27512-9903 76176 Fresenius Preferred VIF_Layout 1 4/16/13 10:26 AM Page 2