CONE / CyrusOne Inc - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Numbers: 001-35789 001-39239 001-39238 CyrusOne Inc. CyrusOne LP CyrusOne Finance C

Second Amended and Restated Bylaws of CyrusOne Inc.

Exhibit 3.2 CYRUSONE INC. SECOND AMENDED AND RESTATED BYLAWS MARCH 25, 2022 ARTICLE I OFFICES The principal office of the Corporation in the State of Maryland shall be located at such place as the Board of Directors may designate. The Corporation may have additional offices, including a principal executive office, at such places as the Board of Directors may from time to time determine or the busi

As filed with the Securities and Exchange Commission on March 25, 2022

As filed with the Securities and Exchange Commission on March 25, 2022 Registration Statement File No.

As filed with the Securities and Exchange Commission on March 25, 2022

As filed with the Securities and Exchange Commission on March 25, 2022 Registration Statement File No.

Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Completion of Acquisition or Disposition of Assets, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): March 23, 2022 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Numbe

As filed with the Securities and Exchange Commission on March 25, 2022

As filed with the Securities and Exchange Commission on March 25, 2022 Registration Statement File No.

KKR and GIP Complete Acquisition of CyrusOne

Exhibit 99.1 KKR and GIP Complete Acquisition of CyrusOne DALLAS ? March 25, 2022 ? CyrusOne Inc. (NASDAQ: CONE) (the ?Company? or ?CyrusOne?) today announced the completion of its acquisition by funds managed by KKR, a leading global investment firm, and Global Infrastructure Partners (?GIP?), one of the world?s leading infrastructure investors, in an all-cash transaction valued at approximately

Second Amended and Restated Charter of CyrusOne Inc.

Exhibit 3.1 SECOND AMENDED AND RESTATED CHARTER OF CYRUSONE INC. ARTICLE I NAME The name of the corporation (the ?Corporation?) is: ?CyrusOne Inc.?. ARTICLE II PURPOSE The Corporation is formed for the purpose of carrying on any lawful business. ARTICLE III PRINCIPAL OFFICE IN STATE AND RESIDENT AGENT The address of the principal office of the Corporation in the State of Maryland is c/o CSC-Lawyer

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K/A (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K/A (Amendment No.

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): March 2, 2022 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number

Third Amendment to the Amended and Restated Agreement of Limited Partnership of CyrusOne LP.

Exhibit 10.1 THIRD AMENDMENT TO THE AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF CYRUSONE LP This THIRD AMENDMENT TO THE AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF CYRUSONE LP, dated as of March 2, 2022 (this ?Amendment?), is being executed by CyrusOne GP, a Maryland statutory trust (the ?General Partner?), as the general partner of CyrusOne LP, a Maryland limited partner

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-35789 CyrusOne Inc.

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant (as of December 31, 2021) Subsidiary Name State or Country of Incorporation or Formation CyrusOne GP Maryland CyrusOne LP Maryland CyrusOne Finance Corp. Maryland CyrusOne LLC Delaware CyrusOne TRS Inc. Delaware CyrusOne Foreign Holdings LLC Delaware CyrusOne Government Services LLC Delaware Cervalis Holdings LLC Delaware Cervalis LLC Delaware Cyrus One

List of Guarantors and Subsidiary Issuers of Guaranteed Securities.

Exhibit 22 List of Guarantors and Subsidiary Issuers of Guaranteed Securities The following subsidiaries of CyrusOne Inc.

CyrusOne Reports Fourth Quarter and Full Year 2021 Earnings Signed $104.3 Million in Annualized GAAP Revenue and 101 Megawatts in 4Q’21

CyrusOne Reports Fourth Quarter and Full Year 2021 Earnings Signed $104.3 Million in Annualized GAAP Revenue and 101 Megawatts in 4Q?21 DALLAS (February 16, 2022) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced fourth quarter and full year 2021 earnings. Highlights Category 4Q?21 vs. 4Q?20 FY?21 vs. FY?20 Revenue $318.4 million 19% $1,205.7 million 17% Net (loss)

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 16, 2022 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

CONE / CyrusOne Inc / COHEN & STEERS, INC. Passive Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Exit Filing)* CyrusOne Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 23283R100 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of

CONE / CyrusOne Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: CyrusOne Inc. Title of Class of Securities: REIT CUSIP Number: 23283R100 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-1(b)

CONE / CyrusOne Inc / BlackRock Inc. Passive Investment

us23283r1005020822.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 5) CYRUSONE INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 23283R100 - (CUSIP Number) December 31, 2021 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): February 1, 2022 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

CyrusOne Stockholders Approve Acquisition by KKR and Global Infrastructure Partners

Exhibit 99.1 CyrusOne Stockholders Approve Acquisition by KKR and Global Infrastructure Partners DALLAS ? Feb. 1, 2022 ? CyrusOne Inc. (NASDAQ: CONE) (the ?Company? or ?CyrusOne?), a premier global data center REIT, today announced its stockholders approved the previously announced merger pursuant to which funds managed by KKR, a leading global investment firm, and Global Infrastructure Partners (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 25, 2022 CYRUSONE INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 25, 2022 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

Amendment to Employment Agreement, dated as of January 25, 2022, by and between David H. Ferdman and CyrusOne Management Services LLC.

Exhibit 10.1 AMENDMENT TO EMPLOYMENT AGREEMENT This AMENDMENT TO EMPLOYMENT AGREEMENT (this ?Amendment?) is entered into as of January 25, 2022, but effective as of January 29, 2022 (the ?Amendment Effective Date?), by and between David H. Ferdman (?Employee?) and CyrusOne Management Services LLC, a Delaware Limited Liability Company (?Employer?). WHEREAS, Employer and Employee entered into that c

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 25, 2022 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

Amendment to Employment Agreement, dated as of January 25, 2022, by and between David H. Ferdman and CyrusOne Management Services LLC.

Exhibit 10.1 AMENDMENT TO EMPLOYMENT AGREEMENT This AMENDMENT TO EMPLOYMENT AGREEMENT (this ?Amendment?) is entered into as of January 25, 2022, but effective as of January 29, 2022 (the ?Amendment Effective Date?), by and between David H. Ferdman (?Employee?) and CyrusOne Management Services LLC, a Delaware Limited Liability Company (?Employer?). WHEREAS, Employer and Employee entered into that c

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 14, 2022 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 21, 2022 CYRUSONE INC. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 21, 2022 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 21, 2022 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

Form of Deal Bonus Agreement.

Exhibit 10.1 December [?], 2021 Deal Bonus Agreement Dear [?]: As you are aware, CyrusOne Inc. (the ?Company?) has entered into a merger agreement, dated November 14, 2021 (the ?Merger Agreement?), with Cavalry Parent L.P. and Cavalry Merger Sub LLC (together, the ?Acquiror?), pursuant to which the Acquiror intends to acquire the Company (the ?Transaction?). You have been identified as integral to

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): December 29, 2021 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by a party other than the Registrant ☐

DEFM14A 1 tm2134342-2defm14a.htm DEFM14A TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by a party other than the Registrant ☐ Filed by the Registrant ☒ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for use of the Commission Only

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by a party other than the Registrant ☐

PREM14A 1 tm2134342-1prem14.htm PREM14A TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by a party other than the Registrant ☐ Filed by the Registrant ☒ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for use of the Commission Only (

CONE / CyrusOne Inc / COHEN & STEERS, INC. Passive Investment

SC 13G/A 1 cone13gbody-113021.htm SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (AMENDMENT NO. 7)* CyrusOne Inc (Name of Issuer) Common Stock (Title of Class of Securities) 23283R100 (CUSIP Number) November 30, 2021 (Da

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

CyrusOne to be Acquired by KKR and Global Infrastructure Partners in $15 Billion Transaction CyrusOne Common Stockholders to Receive $90.50 Per Share in Cash, Representing a Premium of 25% to CyrusOne’s Closing Stock Price of $72.57 on September 27,

Exhibit 99.1 CyrusOne to be Acquired by KKR and Global Infrastructure Partners in $15 Billion Transaction CyrusOne Common Stockholders to Receive $90.50 Per Share in Cash, Representing a Premium of 25% to CyrusOne’s Closing Stock Price of $72.57 on September 27, 2021 DALLAS – Nov. 15, 2021 – CyrusOne Inc. (NASDAQ: CONE) (the “Company” or “CyrusOne”), a premier global data center REIT, KKR, a leadi

Agreement and Plan of Merger, dated November 14, 2021, among CyrusOne Inc., Cavalry Parent L.P. and Cavalry Merger Sub LLC. *

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER By and Among CAVALRY PARENT L.P., CAVALRY MERGER SUB LLC and CYRUSONE INC. Dated as of November 14, 2021 TABLE OF CONTENTS Page ARTICLE I The Merger 2 SECTION 1.01. The Merger. 2 SECTION 1.02. Closing. 2 SECTION 1.03. Effective Time. 2 SECTION 1.04. Effects of the Merger. 3 SECTION 1.05. Charter and Bylaws of the Surviving Corporation. 3 SECTION 1.06. Direc

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): November 14, 2021 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 27, 2021 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

CyrusOne Reports Third Quarter 2021 Earnings Signed $37.8 Million in Annualized GAAP Revenue and 20 Megawatts in 3Q’21

Exhibit 99.1 CyrusOne Reports Third Quarter 2021 Earnings Signed $37.8 Million in Annualized GAAP Revenue and 20 Megawatts in 3Q?21 DALLAS (October 27, 2021) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced third quarter 2021 earnings. Highlights Category 3Q?21 vs. 3Q?20 Revenue $304.1 million 16% Net income $6.7 million n/m Adjusted EBITDA $149.2 million 13% Norm

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-35789 CyrusOne Inc. (Exac

List of Guarantors and Subsidiary Issuers of Guaranteed Securities.

Exhibit 22 List of Guarantors and Subsidiary Issuers of Guaranteed Securities The following subsidiaries of CyrusOne Inc.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

0 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): July 24, 2021 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

Employment Agreement, dated as of August 15, 2021 by and between David H. Ferdman and CyrusOne Management Services LLC (Incorporated by reference to Exhibit 10.1 of Form 8-K, filed by CyrusOne Inc. on August 17, 2021 (Registration No. 001-35789)).

Exhibit 10.1 EMPLOYMENT AGREEMENT This EMPLOYMENT AGREEMENT (the ?Agreement?) is entered into as of August 15, 2021, but effective as of July 29, 2021 (the ?Effective Date?), by and between David H. Ferdman (?Employee?) and CyrusOne Management Services LLC, a Delaware Limited Liability Company (?Employer?). WHEREAS, Employer and Employee wish to memorialize the terms pursuant to which Employee has

List of Guarantors and Subsidiary Issuers of Guaranteed Securities.

Exhibit 22 List of Guarantors and Subsidiary Issuers of Guaranteed Securities The following subsidiaries of CyrusOne Inc.

Form of Time-Based LTIP Unit Award Agreement for Non-Employee Directors under the provisions of the CyrusOne Restated 2012 Long-Term Incentive Plan.

Exhibit 10.3 NON-EMPLOYEE DIRECTOR TIME-BASED LTIP UNIT AWARD UNDER THE PROVISIONS OF THE CYRUSONE RESTATED 2012 LONG TERM INCENTIVE PLAN Name of Director: Award Date: Number of LTIP Units: Pursuant to the provisions of the CyrusOne Restated 2012 Long Term Incentive Plan, as in effect on the date noted above (the ?Award Date?) and as it may thereafter be amended (the ?Plan?), a copy of which has b

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-35789 CyrusOne Inc. (Exact nam

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 28, 2021 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number

CyrusOne Announces CEO Transition Director David Ferdman, Company Co-founder and former CEO, to act as interim President & CEO Bruce Duncan and Company to separate

Exhibit 99.1 CyrusOne Announces CEO Transition Director David Ferdman, Company Co-founder and former CEO, to act as interim President & CEO Bruce Duncan and Company to separate Dallas, Texas, ? July 28, 2021 ? CyrusOne, a premier global data center REIT, today announced the appointment of company Director David (?Dave?) Ferdman, the Company?s co-founder and former CEO, as interim President & Chief

Transition and Separation Agreement, dated as of July 28, 2021 by and between Bruce W. Duncan, CyrusOne Inc. and CyrusOne Management Services LLC (Incorporated by reference to Exhibit 10.1 of Form 8-K, filed by CyrusOne Inc. on July 28, 2021 (Registration No. 001-35789)).

Exhibit 10.1 EXECUTION VERSION TRANSITION AND SEPARATION AGREEMENT This Transition and Separation Agreement (hereafter, ?Agreement?) is entered into by and between CyrusOne Management Services LLC, a Delaware limited liability company (hereafter, ?Employer?), CyrusOne Inc., a Maryland Corporation (?CyrusOne?) and Bruce W. Duncan (hereafter, ?Employee?) on July 28, 2021 (hereafter, the ?Effective D

CyrusOne Reports Second Quarter 2021 Earnings Signed $41.8 Million in Annualized GAAP Revenue and 21 Megawatts in 2Q’21

Exhibit 99.1 CyrusOne Reports Second Quarter 2021 Earnings Signed $41.8 Million in Annualized GAAP Revenue and 21 Megawatts in 2Q?21 DALLAS (July 28, 2021) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced second quarter 2021 earnings. Highlights Category 2Q?21 vs. 2Q?20 Revenue $284.6 million 11% Net income $7.4 million (84)% Adjusted EBITDA $141.9 million 4% Norm

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): July 24, 2021 CyrusOne Inc. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): May 26, 2021 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number)

Indenture, dated as of May 26, 2021, by and among CyrusOne Europe Finance DAC, as issuer, Wells Fargo Bank, N.A., as trustee, CyrusOne LP and CyrusOne Inc., as guarantors, Deutsche Bank Trust Company Americas, as authenticating agent and security registrar, and Deutsche Bank AG, London Branch, as paying agent and transfer agent.

Exhibit 4.1 EXECUTION VERSION CYRUSONE EUROPE FINANCE DAC as Issuer, CYRUSONE INC. and CYRUSONE LP as Guarantors, WELLS FARGO BANK, N.A. as Trustee, DEUTSCHE BANK AG, LONDON BRANCH as Paying Agent and Transfer Agent and DEUTSCHE BANK TRUST COMPANY AMERICAS as Authenticating Agent and Security Registrar 1.125% SENIOR NOTES DUE 2028 INDENTURE Dated as of May 26, 2021 TABLE OF CONTENTS Page Article I

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 18, 2021 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number)

Amended and Restated Bylaws of CyrusOne Inc. (Incorporated by reference to Exhibit 3.1 of Form 8-K, filed by CyrusOne Inc. on May 24, 2021 (Registration No. 001-35789))

Exhibit 3.1 CYRUSONE INC. AMENDED AND RESTATED BYLAWS May 18, 2021 ARTICLE I OFFICES Section 1. PRINCIPAL OFFICE. The principal office of the CyrusOne Inc., a Maryland corporation (the ?Corporation?), in the State of Maryland shall be located at such place as the Board of Directors may designate. Section 2. ADDITIONAL OFFICES. The Corporation may have additional offices, including a principal exec

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): May 12, 2021 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number)

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): May 12, 2021 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number)

***

Exhibit 99.1 CyrusOne Inc. Prices Offering of Green Euro Denominated Senior Notes May 12, 2021 DALLAS?(BUSINESS WIRE)?May 12, 2021?CyrusOne Inc. (NASDAQ: CONE) (the ?Company?) today announced the pricing of the offering of ?500 million aggregate principal amount of 1.125% senior notes due 2028 (the ?Notes?) by its indirect subsidiary, CyrusOne Europe Finance DAC (the ?Issuer?), at 98.665% of their

Form of Primary Sales Agreement, dated May 3, 2021, by and among CyrusOne Inc., CyrusOne GP, CyrusOne LP and each of Fifth Third Securities, Inc. and Stifel, Nicolaus & Company, Incorporated (Incorporated by reference to Exhibit 1.2 of Form 8-K, filed by CyrusOne Inc. on May 4, 2021 (Registration No. 001-35789)).

Exhibit 1.2 CyrusOne Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE SALES AGREEMENT May 3, 2021 May 3, 2021 [NAME OF AGENT]1 [ADDRESS OF AGENT] Ladies and Gentlemen: CyrusOne Inc., a Maryland corporation (the ?Company?), CyrusOne GP, a Maryland statutory trust (the ?General Partner?), which is a subsidiary of the Company and the sole general partner of CyrusOne LP, a Maryland limited partnership and

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Proposed Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) Common Stock, par value $0.01 per share $750,000,000 $81,825

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No.

Form of Forward/Primary Sales Agreement, dated May 3, 2021, by and among CyrusOne Inc., CyrusOne GP, CyrusOne LP and each of J.P. Morgan Securities LLC, Barclays Capital Inc., BMO Capital Markets Corp., Credit Agricole Securities (USA) Inc., Deutsche Bank Securities Inc., Goldman Sachs & Co. LLC, Jefferies LLC, KeyBanc Capital Markets Inc., Morgan Stanley & Co. LLC, MUFG Securities Americas Inc., RBC Capital Markets, LLC, TD Securities (USA) LLC and Truist Securities, Inc.

Exhibit 1.1 CyrusOne Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE SALES AGREEMENT May 3, 2021 May 3, 2021 [NAME OF AGENT]1 [ADDRESS OF AGENT] Ladies and Gentlemen: CyrusOne Inc., a Maryland corporation (the ?Company?), CyrusOne GP, a Maryland statutory trust (the ?General Partner?), which is a subsidiary of the Company and the sole general partner of CyrusOne LP, a Maryland limited partnership and

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): May 4, 2021 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number)

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-35789 CyrusOne Inc. (Exact na

Form of Performance-Based LTIP Unit Award Agreement under the provisions of the CyrusOne Restated 2012 Long Term Incentive Plan.

Exhibit 10.1 PERFORMANCE-BASED LTIP UNIT AWARD UNDER THE PROVISIONS OF THE CYRUSONE RESTATED 2012 LONG TERM INCENTIVE PLAN Name of Employee: Award Date: Target LTIP Unit Award Maximum LTIP Unit Award Performance Period: Pursuant to the provisions of the CyrusOne Restated 2012 Long Term Incentive Plan (as in effect from time to time (the ?Plan?)), this Performance-Based LTIP Unit Award Agreement (t

List of Guarantors and Subsidiary Issuers of Guaranteed Securities.

Exhibit 22 List of Guarantors and Subsidiary Issuers of Guaranteed Securities The following subsidiaries of CyrusOne Inc.

Form of Time-Based LTIP Unit Award Agreement under the provisions of the CyrusOne Restated 2012 Long Term Incentive Plan.

Exhibit 10.2 TIME-BASED LTIP UNIT AWARD UNDER THE PROVISIONS OF THE CYRUSONE RESTATED 2012 LONG TERM INCENTIVE PLAN Name of Employee: Award Date: Number of LTIP Units: Pursuant to the provisions of the CyrusOne Restated 2012 Long Term Incentive Plan (as in effect from time to time (the ?Plan?)), this Time-Based LTIP Unit Award Agreement (this ?Agreement?) and the Partnership Agreement (as defined

Form of Time-Based Restricted Stock Award Agreement under the provisions of the CyrusOne Restated 2012 Long Term Incentive Plan.

Exhibit 10.4 TIME-BASED RESTRICTED STOCK AWARD UNDER THE PROVISIONS OF THE CYRUSONE RESTATED 2012 LONG TERM INCENTIVE PLAN Name of Employee: Award Date: Number of Restricted Shares: Pursuant to the provisions of the CyrusOne Restated 2012 Long Term Incentive Plan (as in effect from time to time (the ?Plan?)), the Compensation Committee of the Board of Directors of CyrusOne Inc. (?CyrusOne?) hereby

Form of Performance-Based Restricted Stock Award Agreement under the provisions of the CyrusOne Restated 2012 Long Term Incentive Plan.

Exhibit 10.3 PERFORMANCE-BASED RESTRICTED STOCK AWARD UNDER THE PROVISIONS OF THE CYRUSONE RESTATED 2012 LONG TERM INCENTIVE PLAN Name of Employee: Award Date: Target Restricted Stock Award: Maximum Restricted Stock Award: Performance Period: Pursuant to the provisions of the CyrusOne Restated 2012 Long Term Incentive Plan (as in effect from time to time (the ?Plan?)), the Compensation Committee (

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 28, 2021 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Numbe

CyrusOne Reports First Quarter 2021 Earnings Signed $35.4 Million in Annualized GAAP Revenue and 28 Megawatts in 1Q’21

Exhibit 99.1 CyrusOne Reports First Quarter 2021 Earnings Signed $35.4 Million in Annualized GAAP Revenue and 28 Megawatts in 1Q?21 DALLAS (April 28, 2021) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced first quarter 2021 earnings. Highlights Category 1Q?21* vs. 1Q?20 Revenue $298.6 million 21% Net income $18.2 million 24% Adjusted EBITDA $140.3 million 6% Norma

- UNOFFICIAL COURTESY PDF OF DEF 14A

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- DEF 14A

Use these links to rapidly review the document Table of Contents Table of Contents Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

Annual Report - 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K/A Amendment No.

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant (as of December 31, 2020) Subsidiary Name State or Country of Incorporation or Formation CyrusOne GP Maryland CyrusOne LP Maryland CyrusOne Finance Corp. Maryland CyrusOne LLC Delaware CyrusOne TRS Inc. Delaware CyrusOne Foreign Holdings LLC Delaware CyrusOne Government Services LLC Delaware Cervalis Holdings LLC Delaware Cervalis LLC Delaware Cyrus One

Second Amendment to the Amended and Restated Agreement of Limited Partnership of CyrusOne LP, dated as of February 15, 2021 (Incorporated by reference to Exhibit 10.4 of Form 10-K, filed by CyrusOne Inc. on February 19, 2021 (Registration No. 001-35789)).

Exhibit 10.4 SECOND AMENDMENT TO THE AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF CYRUSONE LP This SECOND AMENDMENT TO THE AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF CYRUSONE LP, dated as of February 15, 2021 (this ?Amendment?), is being executed by CyrusOne GP, a Maryland statutory trust (the ?General Partner?), as the general partner of CyrusOne LP, a Maryland limited p

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period to Commission File Number: 001-35789 CyrusOne Inc.

List of Guarantors and Subsidiary Issuers of Guaranteed Securities.

Exhibit 22 List of Guarantors and Subsidiary Issuers of Guaranteed Securities The following subsidiaries of CyrusOne Inc.

Description of Securities.

Exhibit 4.5 DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 References to ?we?, ?our?, ?us? and ?our company? herein are, unless the context otherwise indicates, only to CyrusOnc Inc., a Maryland corporation. This description does not purport to be complete and is subject to, and qualified in its entirety by, reference to the Mary

CyrusOne Reports Fourth Quarter and Full Year 2020 Earnings Signed $49.3 Million in Annualized GAAP Revenue and 31 Megawatts in 4Q’20 Company-Record Leasing Year with $156.8 Million in Annualized GAAP Revenue Signed

Exhibit 99.1 CyrusOne Reports Fourth Quarter and Full Year 2020 Earnings Signed $49.3 Million in Annualized GAAP Revenue and 31 Megawatts in 4Q?20 Company-Record Leasing Year with $156.8 Million in Annualized GAAP Revenue Signed DALLAS (February 17, 2021) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced fourth quarter and full year 2020 earnings. Highlights Catego

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 17, 2021 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: CyrusOne Inc. Title of Class of Securities: REIT CUSIP Number: 23283R100 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-1(b)

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-35789 CyrusOne Inc. (Exac

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 28, 2020 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

CyrusOne Reports Third Quarter 2020 Earnings Quarter-End Backlog of $82 Million in Annualized GAAP Revenue Positions Company Well for Continued Growth

EX-99.1 2 q32020exhibit991-earni.htm EX-99.1 Exhibit 99.1 CyrusOne Reports Third Quarter 2020 Earnings Quarter-End Backlog of $82 Million in Annualized GAAP Revenue Positions Company Well for Continued Growth DALLAS (October 28, 2020) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced third quarter 2020 earnings. Highlights Category 3Q’20 vs. 3Q’19 Revenue 262.8 mil

List of Guarantors and Subsidiary Issuers of Guaranteed Securities.

Exhibit 22 List of Guarantors and Subsidiary Issuers of Guaranteed Securities The following subsidiaries of CyrusOne Inc.

Separation Agreement and Release of All Claims, dated as September 14, 2020, by and between Kevin Timmons and CyrusOne LLC (Incorporated by reference to Exhibit 10.5 of Form 10-Q, filed by CyrusOne Inc. on October 29, 2020 (Registration No. 001-35789)).

Exhibit 10.5 CONFIDENTIAL SEPARATION AGREEMENT AND RELEASE OF ALL CLAIMS This Confidential Separation Agreement and Release of All Claims (hereafter, “Agreement”) is entered into by and between CYRUSONE LLC, a Delaware limited liability company (hereafter, “Employer”), and Kevin Timmons (hereafter, “Employee”) based on the following facts: WHEREAS, Employee was employed by Employer and affiliates

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - CURRENT REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): October 6, 2020 CyrusOne Inc. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Numb

Offer Letter to Katherine Motlagh, dated as of October 4, 2020 (Incorporated by reference to Exhibit 10.1 of Form 8-K, filed by CyrusOne Inc. on October 9, 2020 (Registration No. 001-35789)).

Exhibit 10.1 October 4, 2020 Katherine Motlagh Dear Katherine: On behalf of CyrusOne, I am happy to extend an offer to you for the position of Executive Vice President & Chief Financial Officer, reporting to our President & Chief Executive Officer (“CEO”), Bruce W. Duncan. This position is located at the corporate headquarters in Dallas, Texas. This offer is contingent upon you not being legally b

Severance Agreement, dated as of October 8, 2020 by and between Katherine Motlagh and CyrusOne Management Services LLC (Incorporated by reference to Exhibit 10.2 of Form 8-K, filed by CyrusOne Inc. on October 9, 2020 (Registration No. 001-35789)).

Exhibit 10.2 SEVERANCE AGREEMENT This SEVERANCE AGREEMENT (this “Agreement”) by and between Katherine Motlagh (“Employee”) and CyrusOne Management Services LLC, a Delaware Limited Liability Company (“Employer”) is effective as of November 2, 2020, or such earlier date as Employee commences employment with the CyrusOne Group (as defined below) on or after the date of execution of this Agreement by

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): September 21, 2020 CYRUSONE INC.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): September 21, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File N

Fourth Supplemental Indenture, dated as of September 21, 2020, by and among CyrusOne LP and CyrusOne Finance Corp., as issuers, CyrusOne Inc., as guarantor and Wells Fargo Bank, N.A., as trustee, relating to the 2.150% Senior Notes due 2030 (Incorporated by reference to Exhibit 4.2 of Form 8-K, filed by CyrusOne Inc. on September 21, 2020 (Registration No. 001-35789)).

Exhibit 4.2 EXECUTION VERSION CYRUSONE LP and CYRUSONE FINANCE CORP. as Issuers, CYRUSONE INC. as Guarantor, and WELLS FARGO BANK, N.A. as Trustee 2.150% SENIOR NOTES DUE 2030 FOURTH SUPPLEMENTAL INDENTURE Dated as of September 21, 2020 TO THE INDENTURE Dated as of December 5, 2019 TABLE OF CONTENTS Page ARTICLE I RELATION TO BASE INDENTURE; DEFINITIONS; INTERPRETATION SECTION 1.1 Relation to Base

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Maximum Offering Price Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 2.150% Senior Notes due 2030 $400,000,000 98.795% $395

Use these links to rapidly review the document TABLE OF CONTENTS Prospectus Supplement TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(2) Registration No.

- FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): September 15, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File N

CyrusOne Inc. Prices Public Offering of Senior Notes

Exhibit 99.1 CyrusOne Inc. Prices Public Offering of Senior Notes DALLAS—September 15, 2020—CyrusOne Inc. (NASDAQ: CONE) (the “Company”) today announced the pricing of the previously announced public offering of $400 million aggregate principal amount of 2.150% senior notes due 2030 (the “Notes”) by its wholly-owned subsidiaries, CyrusOne LP (the “Operating Partnership”) and CyrusOne Finance Corp.

Underwriting Agreement, dated September 15, 2020, by and among CyrusOne Inc., CyrusOne LP, CyrusOne Finance Corp., and J.P. Morgan Securities LLC, Deutsche Bank Securities Inc. and Truist Securities, Inc., as representatives of the several underwriters specified therein.

Exhibit 1.1 EXECUTION VERSION CyrusOne LP CyrusOne Finance Corp. as Issuers, and CyrusOne Inc. as Guarantor $400,000,000 2.150% Senior Notes Due 2030 UNDERWRITING AGREEMENT September 15, 2020 J.P. Morgan Securities LLC Deutsche Bank Securities Inc. Truist Securities, Inc. As Representatives of the several Underwriters named in Schedule I attached hereto, c/o J.P. Morgan Securities LLC 383 Madison

CyrusOne LP CyrusOne Finance Corp. $400,000,000 2.150% Senior Notes due 2030 (the “Notes”) September 15, 2020 Term Sheet

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration Nos. 333-231203, 333-231203-14 and 333-231203-15 September 15, 2020 CyrusOne LP CyrusOne Finance Corp. $400,000,000 2.150% Senior Notes due 2030 (the “Notes”) September 15, 2020 Term Sheet The information in this pricing term sheet supplements the Issuers’ Preliminary Prospectus Supplement, dated September 15, 2020, and superse

- FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): September 15, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File N

SUBJECT TO COMPLETION, DATED SEPTEMBER 15, 2020

Use these links to rapidly review the document TABLE OF CONTENTS Prospectus Supplement TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No.

Severance Agreement, dated September 1, 2020 by and between John Hatem and CyrusOne Management Services LLC (Incorporated by reference to Exhibit 10.2 of Form 8-K, filed by CyrusOne Inc. on September 2, 2020 (Registration No. 001-35789)).

Exhibit 10.2 SEVERANCE AGREEMENT This SEVERANCE AGREEMENT (this “Agreement”) is effective as of October 5, 2020, or such earlier date as Employee commences employment with the CyrusOne Group (as defined below) on or after the date of execution of this Agreement by the parties hereto (the “Effective Date”), by and between John Hatem (“Employee”) and CyrusOne Management Services LLC, a Delaware Limi

Offer Letter to John Hatem, dated as of August 29, 2020 (Incorporated by reference to Exhibit 10.1 of Form 8-K, filed by CyrusOne Inc. on September 2, 2020 (Registration No. 001-35789)).

Exhibit 10.1 August 29, 2020 John Hatem Dear John: On behalf of CyrusOne, I am happy to extend an offer to you for the position of Executive Vice President & Chief Operating Officer, reporting to our President & Chief Executive Officer, Bruce W. Duncan. This offer is contingent upon the accuracy of your representations and warranties below, successful completion of a background investigation and d

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): September 1, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): July 27, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number

List of Guarantors and Subsidiary Issuers of Guaranteed Securities.

Exhibit 22 List of Guarantors and Subsidiary Issuers of Guaranteed Securities The following subsidiaries of CyrusOne Inc.

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-35789 CyrusOne Inc. (Exact nam

Transition and Retirement Agreement, dated as of July 30, 2020 by and between Diane M. Morefield and CyrusOne LLC (Incorporated by reference to Exhibit 10.1 of Form 8-K, filed by CyrusOne Inc. on July 31, 2020 (Registration No. 001-35789)).

Exhibit 10.1 TRANSITION AND RETIREMENT AGREEMENT This Transition and Retirement Agreement (the “Agreement”) is entered into by and between CYRUSONE LLC, a Delaware limited liability company (“Employer”), and Diane M. Morefield (“Employee”) on July 30, 2020 (the “Effective Date”) based on the following facts: WHEREAS, Employee has been employed by Employer as its Executive Vice President and Chief

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 29, 2020 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number

CyrusOne Reports Second Quarter 2020 Earnings Signed $37 Million in Annualized GAAP Revenue and 22 Megawatts Record Quarter-End Backlog of $97 Million in Annualized GAAP Revenue

Exhibit 99.1 CyrusOne Reports Second Quarter 2020 Earnings Signed $37 Million in Annualized GAAP Revenue and 22 Megawatts Record Quarter-End Backlog of $97 Million in Annualized GAAP Revenue DALLAS (July 29, 2020) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced second quarter 2020 earnings. Highlights Category 2Q’20 vs. 2Q’19 Revenue $256.4 million 2% Net income

Transition and Separation Agreement, dated as of July 2, 2020 by and between Venkatesh S. Durvasula and CyrusOne LLC (Incorporated by reference to Exhibit 10.2 of Form 8-K, filed by CyrusOne Inc. on July 2, 2020 (Registration No. 001-35789)).

Exhibit 10.2 TRANSITION AND SEPARATION AGREEMENT This Transition and Separation Agreement (hereafter, “Agreement”) is entered into by and between CYRUSONE LLC, a Delaware limited liability company (hereafter, “Employer”), and Venkatesh S. Durvasula (hereafter, “Employee”) on July 2, 2020 (hereafter, the “Effective Date”) based on the following facts: WHEREAS, Employee has been employed by Employer

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): June 26, 2020 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number

Employment Agreement dated as of June 26, 2020 by and between Bruce W. Duncan and CyrusOne Management Services LLC (Incorporated by reference to Exhibit 10.1 of Form 8-K, filed by CyrusOne Inc. on July 2, 2020 (Registration No. 001-35789)).

Exhibit 10.1 EMPLOYMENT AGREEMENT This EMPLOYMENT AGREEMENT (the “Agreement”) is effective as of July 6, 2020 (the “Effective Date”), by and between Bruce W. Duncan (“Employee”) and CyrusOne Management Services LLC, a Delaware Limited Liability Company (“Employer”). WHEREAS, Employer wishes to employ Employee, and Employee wishes to become an employee of Employer pursuant to the terms and conditio

Form of Primary Sales Agreement, dated May 6, 2020, by and among CyrusOne Inc., CyrusOne GP, CyrusOne LP and each of Fifth Third Securities, Inc., Stifel, Nicolaus & Company, Incorporated and SunTrust Robinson Humphrey, Inc. (Incorporated by reference to Exhibit 1.2 of Form 8-K, filed by CyrusOne Inc. on May 6, 2020 (Registration No. 001-35789)).

Exhibit 1.2 [Sales Agents-Only Form] CyrusOne Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE SALES AGREEMENT May 6, 2020 May 6, 2020 [NAME OF AGENT]1 [ADDRESS OF AGENT] Ladies and Gentlemen: CyrusOne Inc., a Maryland corporation (the “Company”), CyrusOne GP, a Maryland statutory trust (the “General Partner”), which is a subsidiary of the Company and the sole general partner of CyrusOne LP, a Marylan

Form of Forward/Primary Sales Agreement, dated May 6, 2020, by and among CyrusOne Inc., CyrusOne GP, CyrusOne LP and each of J.P. Morgan Securities LLC, Barclays Capital Inc., BMO Capital Markets Corp., Credit Agricole Securities (USA) Inc., Deutsche Bank Securities Inc., Goldman Sachs & Co. LLC, Jefferies LLC, KeyBanc Capital Markets Inc., Morgan Stanley & Co. LLC, MUFG Securities Americas Inc., RBC Capital Markets, LLC and TD Securities (USA) LLC (Incorporated by reference to Exhibit 1.1 of Form 8-K, filed by CyrusOne Inc. on May 6, 2020 (Registration No. 001-35789)).

Exhibit 1.1 CyrusOne Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE SALES AGREEMENT May 6, 2020 May 6, 2020 [NAME OF AGENT]1 [ADDRESS OF AGENT] Ladies and Gentlemen: CyrusOne Inc., a Maryland corporation (the “Company”), CyrusOne GP, a Maryland statutory trust (the “General Partner”), which is a subsidiary of the Company and the sole general partner of CyrusOne LP, a Maryland limited partnership and

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): May 6, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number)

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Proposed Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) Common Stock, par value $0.01 per share $750,000,000 $97,350

Use these links to rapidly review the document TABLE OF CONTENTS Prospectus Supplement TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No.

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 27, 2020 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Numbe

CyrusOne Reports First Quarter 2020 Earnings 1Q’20 Year-over-Year Revenue Growth of 9% Signed $60 Million in Annualized GAAP Revenue and 44 Megawatts

Exhibit 99.1 CyrusOne Reports First Quarter 2020 Earnings 1Q’20 Year-over-Year Revenue Growth of 9% Signed $60 Million in Annualized GAAP Revenue and 44 Megawatts DALLAS (April 29, 2020) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced first quarter 2020 earnings. Highlights Category 1Q’20 vs. 1Q’19 Revenue $245.9 million 9% Net income / (loss) $14.7 million (84)%

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): April 29, 2020 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Numbe

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-35789 CyrusOne Inc. (Exact na

Reaffirmation Agreement, dated as of March 31, 2020, by and among CyrusOne Inc. and CyrusOne GP and JPMorgan Chase Bank, N.A., as administrative agent (Incorporated by reference to Exhibit 10.2 of Form 8-K, filed by CyrusOne Inc. on April 1, 2020 (Registration No. 001-35789)).

Exhibit 10.2 EXECUTION VERSION REAFFIRMATION AGREEMENT REAFFIRMATION AGREEMENT, dated as of March 31, 2020 (this “Agreement”), by and among CyrusOne Inc., a Maryland corporation (“REIT”) and CyrusOne GP, a Maryland statutory trust (the “General Partner”, and, together with REIT, the “Reaffirming Parties”) and JPMORGAN CHASE BANK, N.A. (“JPM”), as administrative agent (in such capacity, the “Admini

CyrusOne Inc. Announces Amended $2.5 Billion Unsecured Credit Facility

Exhibit 99.1 CyrusOne Inc. Announces Amended $2.5 Billion Unsecured Credit Facility Company Extends Maturity Dates and Decreases Borrowing Rates DALLAS – April 1, 2020 – CyrusOne Inc. (“CyrusOne” or the “Company”) (NASDAQ: CONE), a premier global data center REIT, today announced that its operating partnership, CyrusOne LP, has entered into an amendment to its senior unsecured credit agreement, ex

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): March 31, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Numbe

Amendment, dated as of March 31, 2020, among CyrusOne LP, the other loan parties thereto, the lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent, to the Credit Agreement, dated as of March 29, 2018 (Incorporated by reference to Exhibit 10.1 of Form 8-K, filed by CyrusOne Inc. on April 1, 2020 (Registration No. 001-35789)).

Exhibit 10.1 EXECUTION VERSION AMENDMENT THIS AMENDMENT, dated as of March 31, 2020 (this “Amendment”), is among CyrusOne LP, a Maryland limited partnership (the “Borrower”), the other Loan Parties party hereto, the Lenders party hereto and JPMORGAN CHASE BANK, N.A., as administrative agent. Terms used but not defined herein shall have the respective meanings ascribed thereto in the Credit Agreeme

CONE / CyrusOne Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

CONE / CyrusOne Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): March 25, 2020 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Numbe

COMPANY UPDATE FOR COVID-19 MARCH 25, 2020 Company Update - March 25, 2020 SAFE HARBOR This presentation contains forward-looking statements regarding future events and our future results that are subject to the “safe harbor” provisions of the Privat

cyrusonecov19update COMPANY UPDATE FOR COVID-19 MARCH 25, 2020 Company Update - March 25, 2020 SAFE HARBOR This presentation contains forward-looking statements regarding future events and our future results that are subject to the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995.

Our Definitive Proxy Statement on Schedule 14A filed with the SEC on March 18, 2020

Use these links to rapidly review the document Table of Contents Table of Contents Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

CONE / CyrusOne Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): February 16, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File

Omnibus Amendment Agreement, dated as of February 26, 2020 by and between Venkatesh S. Durvasula and CyrusOne LLC (Incorporated by reference to Exhibit 10.1 of Form 8-K/A, filed by CyrusOne Inc. on February 27, 2020 (Registration No. 001-35789)).

Exhibit 10.1 OMNIBUS AMENDMENT AGREEMENT This Omnibus Amendment Agreement (this “Agreement”) is entered into by and between CYRUSONE LLC, a Delaware limited liability company (“Employer”), and Venkatesh S. Durvasula (“Employee”) on February 26, 2020 (the “Effective Date”) based on the following facts: WHEREAS, Employee is employed by Employer and its affiliates as President - Europe pursuant to th

CyrusOne Announces CEO Transition

Exhibit 99.1 CyrusOne Announces CEO Transition February 20, 2020 Tesh Durvasula appointed CEO DALLAS-(BUSINESS WIRE)-Feb. 20, 2020- CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced that the Company’s Board of Directors has appointed Tesh Durvasula as President & Chief Executive Officer. This appointment follows Gary Wojtaszek stepping down as President & Chief Execu

Transition and Separation Agreement dated as of February 19, 2020 by and between Gary J. Wojtaszek and CyrusOne LLC (Incorporated by reference to Exhibit 10.1 of Form 8-K, filed by CyrusOne Inc. on February 21, 2020 (Registration No. 001-35789)).

Exhibit 10.1 TRANSITION AND SEPARATION AGREEMENT This Transition and Separation Agreement (the “Agreement”) is entered into by and between CYRUSONE LLC, a Delaware limited liability company (“Employer”), and Gary J. Wojtaszek (“Employee”) on February 19, 2020 (the “Effective Date”) based on the following facts: WHEREAS, Employee has been employed by Employer and its affiliates with the position of

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): February 16, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 19, 2020 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant (as of December 31, 2019) Subsidiary Name State or Country of Incorporation or Formation CyrusOne GP Maryland CyrusOne LP Maryland CyrusOne Finance Corp. Maryland CyrusOne LLC Delaware CyrusOne TRS Inc. Delaware CyrusOne Foreign Holdings LLC Delaware CyrusOne Government Services LLC Delaware Cervalis Holdings LLC Delaware Cervalis LLC Delaware Cyrus One

Form of Amendment to 2017-2019 PSU Grant Agreements (Incorporated by reference to Exhibit 10.36 of Form 10-K, filed by CyrusOne Inc. on February 20, 2020 (Registration No. 001-35789)).

Exhibit 10.36 AMENDMENT TO 2017, 2018, AND 2019 PSU AWARD AGREEMENTS All Performance-Based Restricted Stock Unit Awards granted in 2017, 2018, and 2019 under the provisions of the CyrusOne Restated 2012 Long Term Incentive Plan to employees who are current employees as of March 13, 2019 are hereby modified to include the following provision (except as otherwise defined herein, capitalized terms sh

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period to Commission File Number: 001-35789 CyrusOne Inc.

Description of Securities.

Exhibit 4.5 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following is a summary of the general terms of the common stock of CyrusOne Inc., a Maryland corporation (“we,” “our,” “us” and “our company”). This description does not purport to be complete and is subject to, and qualified in its entirety by, reference to the Maryl

CyrusOne Reports Fourth Quarter and Full Year 2019 Earnings 4Q’19 and Full Year 2019 Year-over-Year Revenue Growth of 15% and 19%, respectively

EX-99.1 2 q42019exhibit991-earnings.htm EXHIBIT 99.1 Exhibit 99.1 CyrusOne Reports Fourth Quarter and Full Year 2019 Earnings 4Q’19 and Full Year 2019 Year-over-Year Revenue Growth of 15% and 19%, respectively DALLAS (February 19, 2020) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced fourth quarter and full year 2019 earnings. Highlights % Change vs. 4Q’18 % Chan

CONE / CyrusOne Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: CyrusOne Inc Title of Class of Securities: REIT CUSIP Number: 23283R100 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-1(b)

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 22, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

Third Supplemental Indenture, dated as of January 22, 2020, by and among CyrusOne LP and CyrusOne Finance Corp., as issuers, CyrusOne Inc., as guarantor, Wells Fargo Bank, N.A., as trustee, and Deutsche Bank Trust Company Americas, as paying agent and security registrar (Incorporated by reference to Exhibit 4.2 of Form 8-K, filed by CyrusOne Inc. on January 22, 2020 (Registration No. 001-35789)).

Exhibit 4.2 EXECUTION VERSION CYRUSONE LP and CYRUSONE FINANCE CORP. as Issuers, CYRUSONE INC. as Guarantor, WELLS FARGO BANK, N.A. as Trustee, and DEUTSCHE BANK TRUST COMPANY AMERICAS as Paying Agent and Security Registrar 1.450% SENIOR NOTES DUE 2027 THIRD SUPPLEMENTAL INDENTURE Dated as of January 22, 2020 TO THE INDENTURE Dated as of December 5, 2019 TABLE OF CONTENTS Page ARTICLE I RELATION T

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 8, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

Transition and Separation Agreement dated as of January 13, 2020 by and between Venkatesh S. Durvasula and CyrusOne LLC (Incorporated by reference to Exhibit 10.1 of Form 8-K/A, filed by CyrusOne Inc. on January 17, 2020 (Registration No. 001-35789)).

Exhibit 10.1 TRANSITION AND SEPARATION AGREEMENT This Transition and Separation Agreement (hereafter, “Agreement”) is entered into by and between CYRUSONE LLC, a Delaware limited liability company (hereafter, “Employer”), and Venkatesh S. Durvasula (hereafter, “Employee”) on January 13, 2020 (hereafter, the “Effective Date”) based on the following facts: WHEREAS, Employee was initially employed by

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Maximum Offering Price Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 1.450% Senior Notes due 2027 €500,000,000 99.861% €499

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No.

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Exhibit 99.1 CyrusOne Inc. Prices Public Offering of Euro Denominated Senior Notes DALLAS- January 15, 2020- CyrusOne Inc. (NASDAQ: CONE) (the “Company”) today announced the pricing of the previously announced public offering of €500 million aggregate principal amount of 1.450% senior notes due 2027 (the “Notes”) by its wholly-owned subsidiaries, CyrusOne LP and CyrusOne Finance Corp. (together, t

Underwriting Agreement, dated January 15, 2020, by and among CyrusOne Inc., as guarantor, CyrusOne LP and CyrusOne Finance Corp., as issuers, and the underwriters named in Schedule I thereto.

Exhibit 1.1 EXECUTION VERSION CyrusOne LP CyrusOne Finance Corp. as Issuers, and CyrusOne Inc. as Guarantor €500,000,000 1.450% Senior Notes Due 2027 UNDERWRITING AGREEMENT January 15, 2020 Each of the Underwriters named in Schedule I hereto. Ladies and Gentlemen: CyrusOne Inc., a Maryland corporation (the “Company”), CyrusOne LP, a Maryland limited partnership and subsidiary of the Company (the “

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 15, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

CyrusOne LP CyrusOne Finance Corp. €500,000,000 1.450% Senior Notes due 2027 (the “Notes”) January 15, 2020 Term Sheet

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration Nos. 333-231203, 333-231203-14 and 333-231203-15 January 15, 2020 CyrusOne LP CyrusOne Finance Corp. €500,000,000 1.450% Senior Notes due 2027 (the “Notes”) January 15, 2020 Term Sheet The information in this pricing term sheet supplements the Issuers’ Preliminary Prospectus Supplement, dated January 15, 2020, and supersedes th

CyrusOne LP CyrusOne Finance Corp. €500,000,000 1.450% Senior Notes due 2027 (the “Notes”) January 15, 2020 Term Sheet

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration Nos. 333-231203, 333-231203-14 and 333-231203-15 January 15, 2020 CyrusOne LP CyrusOne Finance Corp. €500,000,000 1.450% Senior Notes due 2027 (the “Notes”) January 15, 2020 Term Sheet The information in this pricing term sheet supplements the Issuers’ Preliminary Prospectus Supplement, dated January 15, 2020, and supersedes th

SUBJECT TO COMPLETION, DATED JANUARY 15, 2020

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(5) Registration File No.

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Exhibit 99.1 CyrusOne Inc. Announces Public Offering of Euro Denominated Senior Notes DALLAS-January 15, 2020-CyrusOne Inc. (NASDAQ: CONE) (the “Company”) announced today that its operating partnership, CyrusOne LP (the “Operating Partnership”), and a wholly owned subsidiary of the Operating Partnership, CyrusOne Finance Corp. (together with the Operating Partnership, the “Issuers”), intend to off

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 15, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

CyrusOne LP CyrusOne Finance Corp. €500,000,000 1.450% Senior Notes due 2027 (the “Notes”) January 15, 2020 Term Sheet

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration Nos. 333-231203, 333-231203-14 and 333-231203-15 January 15, 2020 CyrusOne LP CyrusOne Finance Corp. €500,000,000 1.450% Senior Notes due 2027 (the “Notes”) January 15, 2020 Term Sheet The information in this pricing term sheet supplements the Issuers’ Preliminary Prospectus Supplement, dated January 15, 2020, and supersedes th

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): January 8, 2020 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Numb

First Supplemental Indenture, dated as of December 5, 2019, by and among CyrusOne LP and CyrusOne Finance Corp., as issuers, CyrusOne Inc., as guarantor and Wells Fargo Bank, N.A., as trustee, relating to the 2.900% Senior Notes due 2024 (Incorporated by reference to Exhibit 4.2 of Form 8-K, filed by CyrusOne Inc. on December 5, 2019 (Registration No. 001-35789)).

Exhibit 4.2 EXECUTION VERSION CYRUSONE LP and CYRUSONE FINANCE CORP. as Issuers, CYRUSONE INC. as Guarantor, and WELLS FARGO BANK, N.A. as Trustee 2.900% SENIOR NOTES DUE 2024 FIRST SUPPLEMENTAL INDENTURE Dated as of December 5, 2019 TO THE INDENTURE Dated as of December 5, 2019 TABLE OF CONTENTS Page ARTICLE I RELATION TO BASE INDENTURE; DEFINITIONS; INTERPRETATION SECTION 1.1 Relation to Base In

$1,032.74 per $1,000 Principal Amount of Notes

Exhibit 99.2 CyrusOne Inc. Announces Early Settlement of Tender Offers and Consent Solicitations for Outstanding 5.000% Senior Notes due 2024 and 5.375% Senior Notes due 2027 DALLAS—December 5, 2019—CyrusOne Inc. (NASDAQ: CONE) (the “Company”) today announced the early settlement by CyrusOne LP and CyrusOne Finance Corp. (the “Issuers”) of their previously announced tender offers (each, a “Tender

Third Supplemental Indenture, dated as of December 5, 2019, by and among CyrusOne LP and CyrusOne Finance Corp., as issuers, the guarantors party thereto and Wells Fargo Bank, N.A., as trustee, relating to the 5.000% Senior Notes due 2024 (Incorporated by reference to Exhibit 4.4 of Form 8-K, filed by CyrusOne Inc. on December 5, 2019 (Registration No. 001-35789)).

Exhibit 4.4 EXECUTION VERSION CYRUSONE LP CYRUSONE FINANCE CORP. AND EACH OF THE GUARANTORS PARTY HERETO 5.000% SENIOR NOTES DUE 2024 THIRD SUPPLEMENTAL INDENTURE DATED AS OF December 5, 2019 WELLS FARGO BANK, N.A. Trustee This THIRD SUPPLEMENTAL INDENTURE, dated as of December 5, 2019 (this “Third Supplemental Indenture”), is entered into by and between CyrusOne LP, a Maryland limited partnership

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): December 4, 2019 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File N

Second Supplemental Indenture, dated as of December 5, 2019, by and among CyrusOne LP and CyrusOne Finance Corp., as issuers, CyrusOne Inc., as guarantor and Wells Fargo Bank, N.A., as trustee, relating to the 3.450% Senior Notes due 2029 (Incorporated by reference to Exhibit 4.3 of Form 8-K, filed by CyrusOne Inc. on December 5, 2019 (Registration No. 001-35789)).

Exhibit 4.3 EXECUTION VERSION CYRUSONE LP and CYRUSONE FINANCE CORP. as Issuers, CYRUSONE INC. as Guarantor, and WELLS FARGO BANK, N.A. as Trustee 3.450% SENIOR NOTES DUE 2029 SECOND SUPPLEMENTAL INDENTURE Dated as of December 5, 2019 TO THE INDENTURE Dated as of December 5, 2019 TABLE OF CONTENTS Page ARTICLE I RELATION TO BASE INDENTURE; DEFINITIONS; INTERPRETATION SECTION 1.1 Relation to Base I

Third Supplemental Indenture, dated as of December 5, 2019, by and among CyrusOne LP and CyrusOne Finance Corp., as issuers, the guarantors party thereto and Wells Fargo Bank, N.A., as trustee, relating to the 5.375% Senior Notes due 2027 (Incorporated by reference to Exhibit 4.5 of Form 8-K, filed by CyrusOne Inc. on December 5, 2019 (Registration No. 001-35789)).

Exhibit 4.5 EXECUTION VERSION CYRUSONE LP CYRUSONE FINANCE CORP. AND EACH OF THE GUARANTORS PARTY HERETO 5.375% SENIOR NOTES DUE 2027 THIRD SUPPLEMENTAL INDENTURE DATED AS OF December 5, 2019 WELLS FARGO BANK, N.A. Trustee This THIRD SUPPLEMENTAL INDENTURE, dated as of December 5, 2019 (this “Third Supplemental Indenture”), is entered into by and between CyrusOne LP, a Maryland limited partnership

Indenture, dated as of December 5, 2019, by and among CyrusOne LP and CyrusOne Finance Corp., as issuers, and Wells Fargo Bank, N.A., as trustee (Incorporated by reference to Exhibit 4.1 of Form 8-K, filed by CyrusOne Inc. on December 5, 2019 (Registration No. 001-35789)).

Exhibit 4.1 EXECUTION VERSION CYRUSONE LP and CYRUSONE FINANCE CORP. as Issuers and WELLS FARGO BANK, N.A. as Trustee INDENTURE Dated as of December 5, 2019 CROSS-REFERENCE TABLE(1) Section of Trust Indenture Act Of 1939, as Amended Section(s) of Indenture 310(a) 7.9 310(b) 7.8 311(a) 7.13 311(b) 7.13 312(a) 5.1, 5.2(a) 312(b) 5.2(b) 312(c) 5.2(c) 313(a) 5.4 313(b) 5.4 313(c) 5.4 313(d) 5.4 314(a)

$1,032.74 per $1,000 Principal Amount of Notes

Exhibit 99.1 CyrusOne Inc. Announces Early Results of Tender Offers and Consent Solicitations for Outstanding 5.000% Senior Notes due 2024 and 5.375% Senior Notes due 2027 DALLAS—December 4, 2019—CyrusOne Inc. (NASDAQ: CONE) (the “Company”) today announced the early tender results of the previously announced tender offers (each, a “Tender Offer”) to purchase for cash by CyrusOne LP and CyrusOne Fi

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered Maximum Offering Price Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 2.900% Senior Notes due 2024 $600,000,000 99.859% $599

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(2) Registration No.

CyrusOne Inc. Prices Public Offering of Senior Notes

Exhibit 99.1 CyrusOne Inc. Prices Public Offering of Senior Notes DALLAS—November 20, 2019—CyrusOne Inc. (NASDAQ: CONE) (the “Company”) today announced the pricing of the previously announced public offering of $600 million aggregate principal amount of 2.900% senior notes due 2024 and $600 million aggregate principal amount of 3.450% senior notes due 2029 (together, the “Notes”) by its wholly-own

Underwriting Agreement, dated November 20, 2019, by and among CyrusOne Inc., CyrusOne LP, CyrusOne Finance Corp., Goldman Sachs & Co. LLC, J.P. Morgan Securities LLC and Morgan Stanley & Co. LLC, as representatives of the several underwriters specified therein.

Exhibit 1.1 EXECUTION VERSION CyrusOne LP CyrusOne Finance Corp. as Issuers, and CyrusOne Inc. as Guarantor $600,000,000 2.900% Senior Notes Due 2024 $600,000,000 3.450% Senior Notes Due 2029 UNDERWRITING AGREEMENT November 20, 2019 Goldman Sachs & Co. LLC J.P. Morgan Securities LLC Morgan Stanley & Co. LLC As Representatives of the several Underwriters named in Schedule I attached hereto, c/o Gol

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): November 20, 2019 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

CyrusOne LP CyrusOne Finance Corp. $600,000,000 2.900% Senior Notes due 2024 (the “2024 Notes”) $600,000,000 3.450% Senior Notes due 2029 (the “2029 Notes” and, together with the 2024 Notes, the “Notes”) November 20, 2019 Term Sheet

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration Nos. 333-231203, 333-231203-14 and 333-231203-15 November 20, 2019 CyrusOne LP CyrusOne Finance Corp. $600,000,000 2.900% Senior Notes due 2024 (the “2024 Notes”) $600,000,000 3.450% Senior Notes due 2029 (the “2029 Notes” and, together with the 2024 Notes, the “Notes”) November 20, 2019 Term Sheet The information in this prici

CyrusOne LP CyrusOne Finance Corp. $600,000,000 2.900% Senior Notes due 2024 (the “2024 Notes”) $600,000,000 3.450% Senior Notes due 2029 (the “2029 Notes” and, together with the 2024 Notes, the “Notes”) November 20, 2019 Term Sheet

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration Nos. 333-231203, 333-231203-14 and 333-231203-15 November 20, 2019 CyrusOne LP CyrusOne Finance Corp. $600,000,000 2.900% Senior Notes due 2024 (the “2024 Notes”) $600,000,000 3.450% Senior Notes due 2029 (the “2029 Notes” and, together with the 2024 Notes, the “Notes”) November 20, 2019 Term Sheet The information in this prici

CyrusOne Inc. Announces Tender Offers and Consent Solicitations

Exhibit 99.1 CyrusOne Inc. Announces Tender Offers and Consent Solicitations DALLAS—November 20, 2019—CyrusOne Inc. (NASDAQ:CONE) (the “Company”) today announced that CyrusOne LP and CyrusOne Finance Corp. (the “Issuers”) have commenced tender offers (each, a “Tender Offer”) to purchase for cash any and all of their outstanding 5.000% Senior Notes due 2024 and 5.375% Senior Notes due 2027 (togethe

CyrusOne Inc. Announces Public Offering of Senior Notes

Exhibit 99.2 CyrusOne Inc. Announces Public Offering of Senior Notes DALLAS—November 20, 2019—CyrusOne Inc. (NASDAQ: CONE) (the “Company”) announced today that its operating partnership, CyrusOne LP (the “Operating Partnership”), and a wholly owned subsidiary of the Operating Partnership, CyrusOne Finance Corp. (together with the Operating Partnership, the “Issuers”), intend to offer senior notes

SUBJECT TO COMPLETION, DATED NOVEMBER 20, 2019

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No.

CyrusOne LP CyrusOne Finance Corp. $600,000,000 2.900% Senior Notes due 2024 (the “2024 Notes”) $600,000,000 3.450% Senior Notes due 2029 (the “2029 Notes” and, together with the 2024 Notes, the “Notes”) November 20, 2019 Term Sheet

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Registration Nos. 333-231203, 333-231203-14 and 333-231203-15 November 20, 2019 CyrusOne LP CyrusOne Finance Corp. $600,000,000 2.900% Senior Notes due 2024 (the “2024 Notes”) $600,000,000 3.450% Senior Notes due 2029 (the “2029 Notes” and, together with the 2024 Notes, the “Notes”) November 20, 2019 Term Sheet The information in this prici

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): November 20, 2019 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

Second Supplemental Indenture, dated as of October 30, 2019, by and among CyrusOne LP and CyrusOne Finance Corp., as issuers, the guarantors party thereto and Wells Fargo Bank, N.A., as trustee, relating to the 5.000% Senior Notes due 2024 (Incorporated by reference to Exhibit 4.1(c) of Form 10-Q, filed by CyrusOne Inc. on October 31, 2019 (Registration No. 001-35789)).

Exhibit 4.1(c) SECOND SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of October 30, 2019, among CyrusOne Foreign Holdings LLC, CyrusOne LLC, CyrusOne TRS Inc., Cervalis Holdings LLC, Cervalis LLC, CyrusOne-NC LLC, CyrusOne-NJ LLC, C1-Allen LLC, C1-ATL LLC, C1-Mesa LLC, C1-Sterling VIII LLC, Warhol TRS LLC, Warhol Partnership LLC, Warhol REIT LLC and C1-Santa Clara LLC (collective

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-35789 CyrusOne Inc. (Exac

Second Supplemental Indenture, dated as of October 30, 2019, by and among CyrusOne LP and CyrusOne Finance Corp., as issuers, the guarantors party thereto and Wells Fargo Bank, N.A., as trustee, relating to the 5.375% Senior Notes due 2027 (Incorporated by reference to Exhibit 4.2(c) of Form 10-Q, filed by CyrusOne Inc. on October 31, 2019 (Registration No. 001-35789)).

Exhibit 4.2(c) SECOND SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of October 30, 2019, among CyrusOne Foreign Holdings LLC, CyrusOne LLC, CyrusOne TRS Inc., Cervalis Holdings LLC, Cervalis LLC, CyrusOne-NC LLC, CyrusOne-NJ LLC, C1-Allen LLC, C1-ATL LLC, C1-Mesa LLC, C1-Sterling VIII LLC, Warhol TRS LLC, Warhol Partnership LLC, Warhol REIT LLC and C1-Santa Clara LLC (collective

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): October 30, 2019 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Num

CyrusOne Reports Third Quarter 2019 Earnings 3Q’19 Year-over-Year Revenue Growth of 21% Achieves Investment-Grade Index Eligibility

Exhibit 99.1 CyrusOne Reports Third Quarter 2019 Earnings 3Q’19 Year-over-Year Revenue Growth of 21% Achieves Investment-Grade Index Eligibility DALLAS (October 30, 2019) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced third quarter 2019 earnings. Highlights % Change vs. 3Q’18 Category 3Q’19 3Q’18 3Q’18 Adjusted for ASC 8421 Revenue $250.9 million 21% 21% Net inc

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-35789 CyrusOne Inc. (Exact nam

CyrusOne Reports Second Quarter 2019 Earnings 2Q’19 Year-over-Year Revenue Growth of 28% Announcing a 9% Increase in 3Q’19 Dividend per Share to $0.50

Exhibit 99.1 CyrusOne Reports Second Quarter 2019 Earnings 2Q’19 Year-over-Year Revenue Growth of 28% Announcing a 9% Increase in 3Q’19 Dividend per Share to $0.50 DALLAS (July 31, 2019) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced second quarter 2019 earnings. Highlights % Change vs. 2Q’18 Category 2Q’19 2Q’18 2Q’18 Adjusted for ASC 8421 Revenue $251.5 millio

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): July 31, 2019 CYRUSONE INC. (Exact name of registrant as specified in its charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): May 3, 2019 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Number)

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Proposed Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) Common Stock, par value $0.01 per share $495,349,423 —

Use these links to rapidly review the document TABLE OF CONTENTS Prospectus Supplement TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No.

CONE / CyrusOne Inc. S-3ASR S-3ASR

Use these links to rapidly review the document TABLE OF CONTENTS Table of Contents As filed with the Securities and Exchange Commission on May 3, 2019.

Statement of Eligibility under the Trust Indenture Act of 1939 by Wells Fargo Bank, National Association (Form T-1) with respect to Exhibit 4.5

Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE o CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) WELLS FARGO BANK, NATIONAL ASSOCIATION (Exact name of trustee as specified in its charter) A National B

Statement of Eligibility under the Trust Indenture Act of 1939 by Wells Fargo Bank, National Association (Form T-1) with respect to Exhibit 4.3

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE o CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) WELLS FARGO BANK, NATIONAL ASSOCIATION (Exact name of trustee as specified in its charter) A National B

Form of Indenture for Subsidiary Debt Securities

Exhibit 4.5 CYRUSONE LP and CYRUSONE FINANCE CORP. as Issuers and Trustee INDENTURE Dated as of , 20 Debt Securities CROSS-REFERENCE TABLE(1) Section of Trust Indenture Act of 1939, as Amended Section(s) of Indenture 310(a) 7.9 310(b) 7.8 311(a) 7.13 311(b) 7.13 312(a) 5.1, 5.2(a) 312(b) 5.2(b) 312(c) 5.2(c) 313(a) 5.4 313(b) 5.4 313(c) 5.4 313(d) 5.4 314(a) 5.3, 14.12 314(c) 14.7(a) 314(e) 14.7(b

Form of Indenture for Debt Securities

Exhibit 4.3 CYRUSONE INC. Issuer AND Trustee INDENTURE Dated as of , 20 Debt Securities CROSS-REFERENCE TABLE(1) Section of Trust Indenture Act of 1939, as Amended Section(s) of Indenture 310(a) 7.9 310(b) 7.8 311(a) 7.13 311(b) 7.13 312(a) 5.1, 5.2(a) 312(b) 5.2(b) 312(c) 5.2(c) 313(a) 5.4 313(b) 5.4 313(c) 5.4 313(d) 5.4 314(a) 5.3, 14.12 314(c) 14.7(a) 314(e) 14.7(b) 315(a) 7.1 315(b) 7.14 315(

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-35789 CyrusOne Inc. (Exact na

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): May 1, 2019 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer Identifi

CyrusOne Reports First Quarter 2019 Earnings 1Q’19 Year-over-Year Revenue Growth of 14% Signed $27 Million in Annualized GAAP Revenue and 16 Megawatts

Exhibit 99.1 CyrusOne Reports First Quarter 2019 Earnings 1Q’19 Year-over-Year Revenue Growth of 14% Signed $27 Million in Annualized GAAP Revenue and 16 Megawatts DALLAS (May 1, 2019) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced first quarter 2019 earnings. Highlights % Change vs. 1Q’18 Category 1Q’19 1Q’18 1Q’18 Adjusted for ASC 8421 Revenue $225.0 million 1

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): April 29, 2019 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer Ident

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A AMENDMENT NO. 2 CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): August 24, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Co

CYRUSONE INC. AND SUBSIDIARIES UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS

Exhibit 99.3 CYRUSONE INC. AND SUBSIDIARIES UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS The following Unaudited Pro Forma Condensed Combined Statement of Operations for the year ended December 31, 2018 has been derived from the historical consolidated financial statements of CyrusOne Inc. (together with its subsidiaries, the “Company”) and Zenium Topco Limited., a Cayman Islands

Year ended

Zenium Topco Limited Zenium Topco Limited Financial Statements for the year ended 31 December 2017 1 Zenium Topco Limited Contents Report of Independent Auditors 3 Consolidated statement of financial position5 Consolidated statement of comprehensive income6 Consolidated statement of changes in equity7 Consolidated statement of cash flows8 Notes to the consolidated financial statements9 2 Zenium Topco Limited www.

Share capital

Zenium Topco Limited Unaudited interim condensed consolidated Financial Statements for the six-month period ended 30 June 2018 1 Zenium Topco Limited Contents Condensed consolidated statement of financial position 3 Condensed consolidated statement of comprehensive income 4 Condensed consolidated statement of changes in equity 5 Condensed consolidated statement of cash flows 6 Notes to the condens

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): April 12, 2019 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer Ident

GDS / GDS Holdings Limited ADS / Cyrusone Inc. - SC 13D AMENDMENT NO. 1 Activist Investment

SC 13D Amendment No. 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 1) GDS Holdings Limited (Name of Issuer) Class A Ordinary Shares, par value $0.00005 per

CONE / CyrusOne Inc. DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

Schedule 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

First Supplemental Indenture dated as of October 2, 2018, by and among C1-Allen LLC, C1-ATL LLC, C1-Mesa LLC, C1-Sterling VIII LLC, Warhol TRS LLC, Warhol Partnership LLC, Warhol REIT LLC, C1-Santa Clara LLC, CyrusOne LP, CyrusOne Finance Corp., the other guarantors party thereto and Wells Fargo Bank, N.A., as trustee, relating to the 5.375% Senior Notes due 2027. (Incorporated by reference to Exhibit 4.2(b) of Form 10-K, filed by CyrusOne Inc. on February 22, 2019 (Registration No. 001-35789)).

Exhibit 4.2(b) FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of October 2, 2018, among C1-Allen LLC, C1-ATL LLC, C1-Mesa LLC, C1-Sterling VIII LLC, Warhol TRS LLC, Warhol Partnership LLC, Warhol REIT LLC and C1-Santa Clara LLC (collectively, the “Guaranteeing Subsidiaries”), each a subsidiary of CyrusOne LP (or its permitted successor), a Maryland limited partnership (the

First Supplemental Indenture dated as of October 2, 2018, by and among C1-Allen LLC, C1-ATL LLC, C1-Mesa LLC, C1-Sterling VIII LLC, Warhol TRS LLC, Warhol Partnership LLC, Warhol REIT LLC, C1-Santa Clara LLC, CyrusOne LP, CyrusOne Finance Corp., the other guarantors party thereto and Wells Fargo Bank, N.A., as trustee, relating to the 5.000% Senior Notes due 2024. (Incorporated by reference to Exhibit 4.1(b) of Form 10-K, filed by CyrusOne Inc. on February 22, 2019 (Registration No. 001-35789))

Exhibit 4.1(b) FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of October 2, 2018, among C1-Allen LLC, C1-ATL LLC, C1-Mesa LLC, C1-Sterling VIII LLC, Warhol TRS LLC, Warhol Partnership LLC, Warhol REIT LLC and C1-Santa Clara LLC (collectively, the “Guaranteeing Subsidiaries”), each a subsidiary of CyrusOne LP (or its permitted successor), a Maryland limited partnership (the

Annual Report on Form 10-K for the fiscal year ended December 31, 2018 filed with the SEC on February 22, 2019

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period to Commission File Number: 001-35789 CyrusOne Inc.

Joinder Agreement dated as of October 2, 2018, by and among C1-Allen LLC, C1-ATL LLC, C1-Mesa LLC, C1-Sterling VIII LLC, Warhol TRS LLC, Warhol Partnership LLC, Warhol REIT LLC, C1-Santa Clara LLC and acknowledged by JPMorgan Chase Bank, N.A., relating to the Credit Agreement, dated as of March 29, 2018, among CyrusOne LP, the subsidiary borrowers party thereto, the lenders party thereto, JPMorgan Chase Bank, N.A., as administrative agent for the lenders, KeyBank National Association, as syndication agent, and JPMorgan Chase Bank, N.A., KeyBanc Capital Markets Inc., Barclays Bank PLC, RBC Capital Markets, LLC and TD Securities (USA) LLC, as joint lead arrangers and joint bookrunners (Incorporated by reference to Exhibit 10.5(b) of Form 10-K, filed by CyrusOne Inc. on February 22, 2019 (Registration No. 001-35789)).

Exhibit 10.5(b) JOINDER AGREEMENT THIS JOINDER AGREEMENT (“Joinder Agreement”) is executed as of October 2, 2018, by C1-Allen LLC, a Delaware limited liability company, C1-ATL LLC, a Delaware limited liability company, C1-Mesa LLC, Delaware limited liability company, C1-Sterling VIII LLC, a Delaware limited liability company, C1-Santa Clara LLC, a Delaware limited liability company, Warhol TRS LLC

Subsidiaries of the Registrant

Exhibit 21.1 Subsidiaries of the Registrant (as of December 31, 2018) Subsidiary Name State or Country of Incorporation or Formation CyrusOne GP Maryland CyrusOne LP Maryland CyrusOne Finance Corp. Maryland CyrusOne LLC Delaware CyrusOne TRS Inc. Delaware CyrusOne Foreign Holdings LLC Delaware CyrusOne Government Services LLC Delaware Cervalis Holdings LLC Delaware Cervalis LLC Delaware Cyrus One

First Amendment to the Amended and Restated Agreement of Limited Partnership of CyrusOne LP, dated as of February 18, 2019 (Incorporated by reference to Exhibit 10.3 of Form 10-K, filed by CyrusOne Inc. on February 22, 2019 (Registration No. 001-35789)).

Exhibit 10.3 FIRST AMENDMENT TO THE AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF CYRUSONE LP This FIRST AMENDMENT TO THE AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF CYRUSONE LP, dated as of February 18, 2019 (this “Amendment”), is being executed by CyrusOne GP, a Maryland statutory trust (the “General Partner”), as the general partner of CyrusOne LP, a Maryland limited par

Long-Term International Assignment Letter, dated October 30, 2018, by and between CyrusOne LLC and Venkatesh S. Durvasula (Incorporated by reference to Exhibit 10.15(a) of Form 10-K, filed by CyrusOne Inc. on February 22, 2019 (Registration No. 001-35789)).

Exhibit 10.15(a) CyrusOne Long-term International Assignment Letter October 30, 2018 Tesh Durvasula Dear Tesh: This Assignment Letter is to confirm a mutual understanding between you and CyrusOne (“C1” or “the Company”) of the terms and conditions applying to your long-term international assignment as outlined below: Home Location: CT Host Location: London, UK Effective Start Date: December 1, 201

Offer Letter, dated as of November 6, 2018, by and between CyrusOne LLC and Venkatesh S. Durvasula (Incorporated by reference to Exhibit 10.15(b) of Form 10-K, filed by CyrusOne Inc. on February 22, 2019 (Registration No. 001-35789)).

Exhibit 10.15(b) CyrusOne November 6, 2018 Venkatesh Durvasula Dear Tesh: On behalf of CyrusOne, I am happy to extend an offer to you for the position of President, Europe reporting to our Chief Executive Officer, Gary Wojtaszek. This position is located at our London, England office. This offer is contingent upon approval by the Board of Directors and your agreement to complete your move to Londo

CyrusOne Restated 2012 Long Term Incentive Plan (as amended and restated February 18, 2019) (Incorporated by reference to Exhibit 10.36 of Form 10-K, filed by CyrusOne Inc. on February 22, 2019 (Registration No. 001-35789)).

Exhibit 10.36 CYRUSONE RESTATED 2012 LONG TERM INCENTIVE PLAN as amended and restated effective February 18, 2019 1. Introduction to Plan. 1.1 Name and Sponsors of Plan. The name of this Plan is the CyrusOne Restated 2012 Long Term Incentive Plan, and its sponsors are CyrusOne and the Operating Partnership. 1.2 Purposes of Plan. The purposes of the Plan are (i) to further the long term growth of t

CyrusOne Reports Fourth Quarter and Full Year 2018 Earnings 4Q’18 Year-over-Year Revenue Growth of 23% Record Leasing Year with $153 Million in Annualized GAAP Revenue Signed, up 45% vs. 2017

EX-99.1 2 q42018exhibit991-earnings.htm EXHIBIT 99.1 Exhibit 99.1 CyrusOne Reports Fourth Quarter and Full Year 2018 Earnings 4Q’18 Year-over-Year Revenue Growth of 23% Record Leasing Year with $153 Million in Annualized GAAP Revenue Signed, up 45% vs. 2017 DALLAS (February 20, 2019) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced fourth quarter and full year 201

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): February 20, 2019 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer Id

CONE / CyrusOne Inc. / VANGUARD GROUP INC Passive Investment

cyrusoneinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6 )* Name of issuer: CyrusOne Inc Title of Class of Securities: REIT CUSIP Number: 23283R100 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to designate the ru

CONE / CyrusOne Inc. / VANGUARD SPECIALIZED FUNDS Passive Investment

cyrusoneinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.:1 )* Name of issuer: CyrusOne Inc Title of Class of Securities: REIT CUSIP Number: 23283R100 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to designate the rul

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): November 19, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File Nu

Form of Forward/Primary Sales Agreement, dated November 19, 2018, by and among CyrusOne Inc., CyrusOne GP, CyrusOne LP and each of Barclays Capital Inc., BMO Capital Markets Corp., Deutsche Bank Securities Inc., Goldman Sachs & Co. LLC, Jefferies LLC, KeyBanc Capital Markets Inc., Merrill Lynch, Pierce, Fenner & Smith Incorporated, Morgan Stanley & Co. LLC, MUFG Securities Americas Inc., Raymond James & Associates, Inc. and RBC Capital Markets, LLC (Incorporated by reference to Exhibit 1.1 of Form 8-K, filed by CyrusOne Inc. on November 19, 2018 (Registration No. 001-35789)).

Exhibit 1.1 CyrusOne Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE SALES AGREEMENT November 19, 2018 November 19, 2018 [NAME OF AGENT](1) [ADDRESS OF AGENT] Ladies and Gentlemen: CyrusOne Inc., a Maryland corporation (the “Company”), CyrusOne GP, a Maryland statutory trust (the “General Partner”), which is a subsidiary of the Company and the sole general partner of CyrusOne LP, a Maryland limited p

Form of Primary Sales Agreement, dated November 19, 2018, by and among CyrusOne Inc., CyrusOne GP, CyrusOne LP and each of Capital One Securities, Inc., Stifel, Nicolaus & Company, Incorporated, SunTrust Robinson Humphrey, Inc. and TD Securities (USA) LLC (Incorporated by reference to Exhibit 1.2 of Form 8-K, filed by CyrusOne Inc. on November 19, 2018 (Registration No. 001-35789)).

Exhibit 1.2 [Sales Agents-Only Form] CyrusOne Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE SALES AGREEMENT November 19, 2018 November 19, 2018 [NAME OF AGENT](1) [ADDRESS OF AGENT] Ladies and Gentlemen: CyrusOne Inc., a Maryland corporation (the “Company”), CyrusOne GP, a Maryland statutory trust (the “General Partner”), which is a subsidiary of the Company and the sole general partner of CyrusOne

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Proposed Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) Common Stock, par value $0.01 per share $750,000,000 $90,900

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No.

CONE / CyrusOne Inc. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2018 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period to Commission File Number: 001-35789 (CyrusOne Inc.) CyrusOne

Year ended

Zenium Topco Limited Zenium Topco Limited Financial Statements for the year ended 31 December 2017 1 Zenium Topco Limited Contents Report of Independent Auditors 3 Consolidated statement of financial position5 Consolidated statement of comprehensive income6 Consolidated statement of changes in equity7 Consolidated statement of cash flows8 Notes to the consolidated financial statements9 2 Zenium Topco Limited www.

November 1, 2018

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A AMENDMENT NO. 1 CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): August 24, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number)

CYRUSONE INC. AND SUBSIDIARIES

Exhibit 99.3 CYRUSONE INC. AND SUBSIDIARIES UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF OPERATIONS The following Unaudited Pro Forma Condensed Combined Statements of Operations for the year ended December 31, 2017 and the nine months ended September 30, 2018 have been derived from the historical consolidated financial statements of CyrusOne Inc. (together with its subsidiaries, the “Compa

Share capital

Zenium Topco Limited Unaudited interim condensed consolidated Financial Statements for the six-month period ended 30 June 2018 1 Zenium Topco Limited Contents Condensed consolidated statement of financial position 3 Condensed consolidated statement of comprehensive income 4 Condensed consolidated statement of changes in equity 5 Condensed consolidated statement of cash flows 6 Notes to the condens

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): October 30, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer Ide

CyrusOne Reports Third Quarter 2018 Earnings Signed $27 Million in Annualized GAAP Revenue and 15 Megawatts Year-over-Year Revenue Growth of 18% and Adjusted EBITDA Growth of 16%

Exhibit 99.1 CyrusOne Reports Third Quarter 2018 Earnings Signed $27 Million in Annualized GAAP Revenue and 15 Megawatts Year-over-Year Revenue Growth of 18% and Adjusted EBITDA Growth of 16% DALLAS (October 30, 2018) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced third quarter 2018 earnings. Highlights Category 3Q’18 % Change vs. 3Q’17 Revenue $206.6 million 18

Underwriting Agreement, dated September 25, 2018, by and among CyrusOne Inc., CyrusOne GP, CyrusOne LP, Morgan Stanley & Co. LLC, Deutsche Bank Securities Inc., RBC Capital Markets, LLC and TD Securities (USA) LLC, as representatives of the several underwriters specified therein, and Morgan Stanley & Co. LLC, in its capacity as the forward purchaser and the forward seller.

Exhibit 1.1 EXECUTION VERSION 8,000,000 Shares CyrusOne Inc. COMMON STOCK, PAR VALUE $0.01 PER SHARE UNDERWRITING AGREEMENT September 25, 2018 September 25, 2018 Morgan Stanley & Co. LLC Deutsche Bank Securities Inc. RBC Capital Markets, LLC TD Securities (USA) LLC As Representatives of the several Underwriters named in Schedule I hereto c/o Morgan Stanley & Co. LLC 1585 Broadway New York, New Yor

Forward Sale Agreement, dated September 25, 2018, between CyrusOne Inc. and Morgan Stanley & Co. LLC (Incorporated by reference to Exhibit 1.2 of Form 8-K, filed by CyrusOne Inc. on October 1, 2018 (Registration No. 001-35789)).

Exhibit 1.2 To: CyrusOne Inc. 2101 Cedar Springs Road, Suite 900 Dallas, Texas 75201 From: Morgan Stanley & Co. LLC 1585 Broadway New York, NY 10036-8293 Date: September 25, 2018 Dear Sir(s): The purpose of this communication (this “Confirmation”) is to set forth the terms and conditions of the above-referenced transaction entered into on the Trade Date specified below (the “Transaction”) between

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): September 25, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File N

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities to be Registered Amount to be Registered(1) Proposed Maximum Offering Price per Security Proposed Maximum Aggregate Offering Price Amount of Registration Fee(2) Common Stock, par value

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No.

# # #

EX-99.2 3 a18-340323ex99d2.htm EX-99.2 Exhibit 99.2 CyrusOne Inc. Prices Public Offering of Common Stock DALLAS — September 26, 2018 — CyrusOne Inc. (NASDAQ: CONE) (“CyrusOne”) announced today that it has priced a public offering of 8,000,000 shares of its common stock, of which 5,500,000 shares were offered directly by CyrusOne, and 2,500,000 shares were offered, at the request of CyrusOne, by th

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): September 25, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State or other jurisdiction of incorporation) (Commission File N

# # #

Exhibit 99.1 CyrusOne Inc. Announces Public Offering of Common Stock DALLAS — September 25, 2018 — CyrusOne Inc. (NASDAQ: CONE) (“CyrusOne”) announced today that it has commenced the public offering of 8,000,000 shares of its common stock, of which 5,500,000 shares will be offered directly by CyrusOne, and 2,500,000 shares will be offered, at the request of CyrusOne, by the Forward Purchaser (as d

SUBJECT TO COMPLETION, DATED SEPTEMBER 25, 2018.

Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): September 15, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer I

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): August 24, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer Iden

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): August 15, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer Iden

[Signature page follows]

EX-99.1 2 ex991.htm EXHIBIT 99.1 Exhibit 99.1 August 15, 2018 Variation of terms of the sale and purchase agreement (as amended, restated, supplemented or otherwise modified from time to time, the Agreement) dated 21 December 2017 between (1) Quantum Strategic Partners Limited, Franek Sodzawiczny, Matthew Pullen, Louise Jarvis, Julian King, Nigel Rogers, Chester Reid, Michael Venables, Mark O’Keef

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): August 10, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer Iden

[Signature page follows]

Exhibit 99.1 August 10, 2018 Variation of terms of the sale and purchase agreement (as amended, restated, supplemented or otherwise modified from time to time, the Agreement) dated 21 December 2017 between (1) Quantum Strategic Partners Limited, Franek Sodzawiczny, Matthew Pullen, Louise Jarvis, Julian King, Nigel Rogers, Chester Reid, Michael Venables, Mark O’Keefe, Aslihan Güreşçier, Keith Crons

CONE / CyrusOne Inc. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period to Commission File Number: 001-35789 (CyrusOne Inc.) CyrusOne Inc.

CyrusOne Reports Second Quarter 2018 Earnings Signed Quarterly Company Record $65 Million in Annualized GAAP Revenue and 52 Megawatts Year-over-Year Revenue Growth of 18% and Adjusted EBITDA Growth of 22%

EX-99.1 2 q22018exhibit991-earnings.htm EXHIBIT 99.1 Exhibit 99.1 CyrusOne Reports Second Quarter 2018 Earnings Signed Quarterly Company Record $65 Million in Annualized GAAP Revenue and 52 Megawatts Year-over-Year Revenue Growth of 18% and Adjusted EBITDA Growth of 22% DALLAS (August 1, 2018) - CyrusOne Inc. (NASDAQ: CONE), a premier global data center REIT, today announced second quarter 2018 ea

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): August 1, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer Ident

[Signature page follows]

Exhibit 99.1 July 27, 2018 Variation of terms of the sale and purchase agreement (as amended, restated, supplemented or otherwise modified from time to time, the Agreement) dated 21 December 2017 between (1) Quantum Strategic Partners Limited, Franek Sodzawiczny, Matthew Pullen, Louise Jarvis, Julian King, Nigel Rogers, Chester Reid, Michael Venables, Mark O’Keefe, Aslihan Güreşçier, Keith Cronsha

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): July 27, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer Identi

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of Earliest Event Reported): July 19, 2018 CYRUSONE INC. (Exact Name of Registrant as Specified in its Charter) Maryland 001-35789 46-0691837 (State of incorporation) (Commission File Number) (IRS Employer Identi