Additional Proxy Soliciting Materials (definitive) (defa14a)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a)

of the Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐

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☐		Preliminary Proxy Statement

☐		Confidential, for Use of the Commission Only (as permitted by Rule 14a- 6(e)(2))

☐		Definitive Proxy Statement

☒		Definitive Additional Materials

☐		Soliciting Material under §240.14a-12

INTERDIGITAL, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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☒	No fee required.

☐	Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

	(1)	Title of each class of securities to which transaction applies:
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☐	Fee paid previously with preliminary materials.

☐	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

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*** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on June 3, 2020. Meeting Information Meeting Type: Annual Meeting For holders as of: April 1, 2020 Date: June 3, 2020 Time: 2:00 P.M., Eastern Time Location: Meeting live via the Internet-please visit www.virtualshareholdermeeting.com/IDCC2020 The company will be hosting the meeting live via the Internet this year. To attend the meeting via the Internet please visit www.virtualshareholdermeeting.com/IDCC2020 and be sure to havethe information that is printed in the box marked by the arrow (located on the following page). ï§ XXXX XXXX XXXX XXXX You are receiving this communication because you hold shares in the company named above. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com, scan the QR Barcode on the reverse side, or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. INTERDIGITAL, INC. 200 BELLEVUE PARKWAY, SUITE 300 WILMINGTON, DE 19809-3727 D14846-P35956 See the reverse side of this notice to obtain

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Before You Vote How to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: The Notice and Proxy Statement and 2019 Annual Report How to View Online: Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page)and visit: www.proxyvote.com, or scan the QR Barcode below. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: sendmaterial@proxyvote.com * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page) in the subject line. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 20, 2020 to facilitate timely delivery. w SCAN TO VIEW MATERIALS & VOTE How To Vote Please Choose One of the Following Voting Methods D14847-P35956 Vote By Internet: Before The Meeting: Go to www.proxyvote.com or from a smartphone, scan the QR Barcode above. Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page) available and follow the instructions. During The Meeting: Go to www.virtualshareholdermeeting.com/IDCC2020. Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the following page) available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.n proxy materials and voting instructions.

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The Board of Directors recommends you vote FOR the election of each of the following nominees: 1. Election of Directors The Board of Directors recommends you vote FOR proposals 2 and 3: Nominees: 2. Advisory resolution to approve executive compensation. 1a. Joan H. Gillman 1b. S. Douglas Hutcheson 3. Ratification of PricewaterhouseCoopers LLP as the independent registered public accounting firm of InterDigital, Inc. for the year ending December 31, 2020. 1c. John A. Kritzmacher NOTE: THE UNDERSIGNED HEREBY ACKNOWLEDGES RECEIPT OF NOTICE OF THE 2020 ANNUAL MEETING OF SHAREHOLDERS, THE PROXY S TATEMENT AND THE 2019 ANNUAL REPORT. 1d. John D. Markley, Jr. 1e. William J. Merritt 1f. Jean F. Rankin 1g. Philip P. Trahanas D14848-P35956

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