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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1405495	Interdigital Inc.	IDCC	Patent Owners & Lessors (6794)	231882087

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1193182	J William Merritt	781 Third Avenue King Of Prussia PA 19406	President And Ceo	Yes	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
Common Stock	Acquisiton	2010-11-08	16,750	$13.19	117,245	No	4	M	Direct
Common Stock	Acquisiton	2010-11-08	40,000	$12.07	157,245	No	4	M	Direct
Common Stock	Disposition	2010-11-08	56,750	$34.52	100,495	No	4	S	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Options (Right-to-Buy)	Disposition	2010-11-08	16,750	$0.00	25,000	$13.19
Common Stock	Options (Right-to-Buy)	Disposition	2010-11-08	40,000	$0.00	50,000	$12.07

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2001-06-30	2011-01-29	No	4	M	Direct
0	2001-12-31	2011-07-12	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	2,913	Indirect	By 401(k) Plan

Footnotes

The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
The price reported is the weighted average sale price for the transactions reported. The sale prices ranged from $34.36 to $34.59. Full information about the transactions reported will be provided upon request.
As of the most recently published account statement, the reporting person beneficially owned this number of whole shares of common stock pursuant to the InterDigital Savings and Protection Plan.
A grant of 25,000 options that vested every six months, first in two installments of 4,166 and second in four installments of 4,167, beginning on the date specified, and that were set to expire on 01/29/2011.
A grant of 50,000 options that vested every six months, first in four installments of 8,333 and second in two installments of 8,334, beginning on the date specified, and that were set to expire on 07/12/2011.