InterDigital, Inc. — Director's Dealing 2010

Mar 30, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: InterDigital, Inc. (IDCC)
CIK: 0001405495
Period of Report: 2010-03-26

Reporting Person: Isaacs Gary D (Chief Administrative Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-26	Common Stock	M	8000	$25.25	Acquired	25644	Direct
2010-03-26	Common Stock	S	8000	$27.98	Disposed	17644	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-26	Options (Right-to-Buy)	$25.25	M	8000	Disposed	2010-03-29	Common Stock (8000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	406	Indirect

Footnotes

F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2: The price reported is the weighted average sale price for the transactions reported. The sale prices ranged from $27.91 to $28.08. Full information about the transactions reported will be provided upon request.

F3: 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.

F4: A grant of 8,000 options that vested in two equal installments, first beginning on the date specified and second on June 30, 2001, and that were set to expire on March 29, 2010.