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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1437107	Discovery Communications Inc.	DISCA	Cable & Other Pay Television Services (4841)	352333914

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1445069	G Mark Hollinger	One Discovery Place Silver Spring MD 20910	Pres. & Ceo, Dni	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Series A Common Stock	Acquisiton	2010-09-02	77,213	$15.34	97,233	No	4	M	Direct
Series A Common Stock	Disposition	2010-09-02	77,213	$39.15	20,020	No	4	S	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Series A Common Stock	Employee Stock Option (right to acquire)	Disposition	2010-09-02	77,213	$0.00	77,213	$15.34

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
461,314	2010-03-10	2012-06-10	No	4	M	Direct

Footnotes

The price reported represents the weighted average sales price of shares of Series A common stock sold in multiple transactions at prices ranging from $39.03 to $39.23 per share. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
This stock option vests 33% on March 10, 2010, 33% on March 10, 2011 and 34% on March 10, 2012.