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Filing Details

Accession Number:: 0001209191-17-017009
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2017-03-02 20:41:59
Reporting Period:: 2017-02-28

Filing Date:: 2017-03-02
Accepted Time:: 2017-03-02 20:41:59
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1490892	Coresite Realty Corp	COR	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1325462	S Jeffrey Finnin	C/O Coresite Realty Corporation 1001 17Th Street, Suite 500 Denver CO 80202	Cfo And Treasurer	No	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Disposition	2017-02-28	9,400	$90.26	99,444	No	4	S	Direct
Common Stock	Acquisiton	2017-03-01	23,795	$23.99	123,239	No	4	M	Direct
Common Stock	Disposition	2017-03-01	8,084	$89.24	115,155	No	4	S	Direct
Common Stock	Disposition	2017-03-01	5,416	$89.64	109,739	No	4	S	Direct
Common Stock	Disposition	2017-03-02	1,025	$90.11	108,714	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Disposition	2017-03-01	23,795	$0.00	23,795	$23.99

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2022-04-05	No	4	M	Direct

Footnotes

The option exercise and sales were effected pursuant to a sales plan adopted by the reporting person and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.
Includes 1,400 shares sold by the reporting person to cover tax obligations upon the vesting of restricted stock.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.83 to $90.77, inclusive. The reporting person undertakes to provide to the issuer, any shareholder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes 3, 5, 6 and 8.
Represents shares sold by the reporting person to cover the exercise price and tax obligations upon the exercise of the options.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $88.52 to $89.51, inclusive.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.52 to $89.89, inclusive.
Represents shares sold by the reporting person to cover tax obligations upon the vesting of restricted stock.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.84 to $90.62, inclusive.
The stock options vest and become exercisable in four equal annual installments beginning on April 5, 2013, provided that the reporting person remains employed by the issuer as of each vesting date.