SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Chambliss Kelly C

(Last)

(First)

(Middle)

C/O CORESITE REALTY CORPORATION

1001 17TH STREET, SUITE 500

(Street)

DENVER

80202

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
CoreSite Realty Corp [ COR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
12/28/2021

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽¹⁾	12/28/2021		D			8,896	⁽¹⁾	⁽¹⁾	Common Stock	8,896	⁽¹⁾	0	D

Explanation of Responses:

1. At the Company Merger Effective Time (as defined below), each award of restricted stock units ("Company Restricted Stock Unit Award") that was outstanding as of immediately prior to the Company Merger Effective Time vested in accordance with the terms of the applicable award agreement and all restrictions thereupon lapsed, and each such Company Restricted Stock Unit Award was converted into the right to receive a cash payment equal to the product of (i) the number of shares of shares of common stock, par value $0.01 per share, underlying such Restricted Stock Unit Award as of immediately prior to the Company Merger Effective Time and (ii) $170.00 in cash.

Remarks:

This Form 4 reports securities disposed of under the terms of the Agreement and Plan of Merger (as amended or supplemented from time to time, the "Merger Agreement"), dated as of November 14, 2021, by and among the CoreSite Realty Corporation (the "Company"), CoreSite, L.P. ("Partnership"), Appleseed Merger Sub LLC ("Purchaser"), American Tower Investments LLC ("Parent"), Appleseed Holdco LLC ("Holdco"), Appleseed OP Merger Sub LLC ("OP Merger Sub") and, solely for the purposes of certain provisions specified therein, American Tower Corporation. Pursuant to the Merger Agreement, on December 28, 2021, (i) Purchaser merged with and into the Company, with the Company surviving as a wholly owned subsidiary of Holdco (the "Company Merger", and the effective time of such merger, the "Company Merger Effective Time"); (ii) substantially simultaneously with the Merger but preceding the Holdco Merger, OP Merger Sub merged with and into the Partnership, with the Partnership continuing as the surviving limited partnership (the "Partnership Merger"); and (iii) immediately following the Company Merger but after the Partnership Merger, the Company merged with and into Holdco, with Holdco continuing as the surviving limited liability company. A copy of the Merger Agreement is included as Exhibit 2.1 to the Company's Form 8-K filed with the SEC on November 14, 2021.

	/s/ Derek S. McCandless, Attorney-in-Fact	12/29/2021
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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