InterDigital, Inc. — Director's Dealing 2010

Mar 15, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: InterDigital, Inc. (IDCC)
CIK: 0001405495
Period of Report: 2010-03-11

Reporting Person: LEMMO MARK A (Exec. VP, Corp. Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-11	Common Stock	M	20000	$25.25	Acquired	97125	Direct
2010-03-11	Common Stock	S	20000	$27.80	Disposed	77125	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-11	Options (Right-to-Buy)	$25.25	M	20000	Disposed	2010-03-29	Common Stock (20000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3137	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: 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.

F3: The option became exercisable in two equal installments on December 31, 2000 and June 30, 2001 and was set to expire on March 29, 2010.