UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
SCHEDULE 13G
 
Under the Securities Exchange Act of 1934
(Amendment No. ________)*
 
CORESITE REALTY CORP
(Name of Issuer)
 
PREFERRED CLASS A 7.25%
(Title of Class of Securities)
 
21870Q204
(CUSIP Number)
 
Randall Ramey, 191 N. Wacker Dr, Suite 2500, Chicago, IL 60606 312-425-0260
(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)
 
December 31, 2014
(Date of Event which Requires Filing of this Statement)
 
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
☒
Rule 13d-1(b)
☐
Rule 13d-1(c)
☐
Rule 13d-1(d)
 
* The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.
 
The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).
 
13G
 
1
NAMES OF REPORTING PERSONS
 
 
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
 
 
Heitman Real Estate Securities LLC 36-4265577
 
 
 
 
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see instructions)
    
(a)☐
    
(b)☐
 
 
3
SEC USE ONLY
 
 
 
 
 
 
 
4
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
United States
 
 
 
 
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
5
SOLE VOTING POWER
 
 
472,579
 
 
 
 
6
SHARED VOTING POWER
 
 
0
 
 
 
 
7
SOLE DISPOSITIVE POWER
 
 
472,579
 
 
 
 
8
SHARED DISPOSITIVE POWER
 
 
0
 
 
 
 
9
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
472,579
 
 
 
 
10
CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
 
 
☐
 
 
 
 
11
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
 
 
10.27%
 
 
 
 
12
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
 
 
Investment Adviser
 
 
 
 
 
13G
 
Item 1.
 
 
(a)
Name of Issuer
CORESITE REALTY CORP PREFERRED CLASS A 7.25%
     
 
(b)
Address of Issuer’s Principal Executive Offices
1001 17TH Street, Suite 500
Denver, CO  80202
 
Item 2.
 
 
(a)
Name of Person Filing
Heitman Real Estate Securities LLC
     
 
(b)
Address of the Principal Office or, if none, residence
191 N. Wacker Dr., Suite 2500
Chicago, IL 60606
     
 
(c)
Citizenship
Delaware
     
 
(d)
Title of Class of Securities
Preferred
     
 
(e)
CUSIP Number
21870Q204
 
Item 3.
If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
 
 
(a)
☐
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).
       
 
(b)
☐
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
       
 
(c)
☐
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).
       
 
(d)
☐
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).
       
 
(e)
☒
An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);
       
 
(f)
☐
An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);
       
 
(g)
☐
A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G);
       
 
(h)
☐
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
       
 
(i)
☐
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
       
 
(j)
☐
Group, in accordance with §240.13d-1(b)(1)(ii)(J).
 
Item 4.
Ownership.
 
Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.
 
 
(a)
Amount beneficially owned:  472,579
 
 
(b)
Percent of class:  10.27%
 
 
(c)
Number of shares as to which the person has:  472,579
 
 
(i)
Sole power to vote or to direct the vote  472,579
 
 
(ii)
Shared power to vote or to direct the vote  0.
 
 
(iii)
Sole power to dispose or to direct the disposition of  472,579
 
 
(iv)
Shared power to dispose or to direct the disposition of  0
 
Instruction. For computations regarding securities which represent a right to acquire an underlying security see §240.13d-3(d)(1).
 
Item 5.
Ownership of Five Percent or Less of a Class.
 
N/A
 
Item 6.
Ownership of More than Five Percent on Behalf of Another Person.
 
Heitman Real Estate Securities LLC serves as an SEC-registered investment adviser or sub-adviser to various funds and separate account clients. Heitman Real Estate Securities LLC has been given dispositive power by its clients for the right to receive or the power to direct the receipt of dividends from, or proceeds from the sale of 472,579 shares, 10.27% of this issuer.
 
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company.
 
N/A
 
Item 8.
Identification and Classification of Members of the Group.
 
N/A
 
Item 9.
Notice of Dissolution of Group.
 
N/A
 
Item 10.
Certification.
 
 
(a)
The following certification shall be included if the statement is filed pursuant to §240.13d-1(b):
 
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.
 
13G
 
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
 
 
02/05/2015
 
Date
 
 
 
Katie Boysen
 
Signature
 
 
 
Katie Boysen, Compliance Manager
 
Name/Title