UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934 (Amendment No.     )

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IAC/InterActiveCorp
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*** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Stockholder Meeting to Be Held on June 28, 2018. IAC/INTERACTIVECORP XXXX XXXX XXXX XXXX (located on the following page). IAC/INTERACTIVECORP ATTN: JOANNE HAWKINS 555 WEST 18TH STREET NEW YORK, NY 10011 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 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. proxy materials and voting instructions. E46460-P08000 See the reverse side of this notice to obtain Meeting Information Meeting Type: Annual Meeting For holders as of: April 30, 2018 Date: June 28, 2018 Time: 9:00 a.m. Eastern Daylight Time Location: Meeting live via the Internet-please visit www.virtualshareholdermeeting.com/IACI2018. 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/IACI2018 and be sure to have the information that is printed in the box marked by the arrow

Before You Vote How to Access the Proxy Materials Have the information that is printed in the box marked by the arrow XXXX XXXX XXXX XXXX (located on the by the arrow XXXX XXXX XXXX XXXX (located on the following page) in the subject line. How To Vote Please Choose One of the Following Voting Methods XXXX XXXX XXXX XXXX (located on the following page) available and follow the instructions. the arrow XXXX XXXX XXXX XXXX (located on the following page) available and follow the instructions. E46461-P08000 Vote By Internet: Before The Meeting: Go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow During The Meeting: Go to www.virtualshareholdermeeting.com/IACI2018. Have the information that is printed in the box marked by Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card. Proxy Materials Available to VIEW or RECEIVE: NOTICE AND PROXY STATEMENTANNUAL REPORT How to View Online: following page) and visit: www.proxyvote.com. 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 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 June 14, 2018 to facilitate timely delivery.

The Board of Directors recommends that you vote FOR the following: 1. Election of Directors Nominees: 01) 02) 03) 04) 05) 06) Edgar Bronfman, Jr. Chelsea Clinton Barry Diller Michael D. Eisner Bonnie S. Hammer Victor A. Kaufman 07) 08) 09) 10) 11) 12) Joseph Levin Bryan Lourd* David Rosenblatt Alan G. Spoon* Alexander von Furstenberg Richard F. Zannino* *To be voted upon by the holders of Common Stock voting as a separate class. The Board of Directors recommends that you vote FOR proposal 2: 2. To approve the 2018 Stock Plan Proposal. The Board of Directors recommends that you vote FOR proposal 3: 3. Ratification of the appointment of Ernst & Young LLP as IAC's independent registered public accounting firm for 2018. NOTE: Such other business as may properly come before the meeting or any adjournment thereof. E46462-P08000 Voting Items

The Board of Directors recommends that you vote FOR the following: 1. Election of Directors Nominees: 01) 02) 03) 04) 05) Edgar Bronfman, Jr. Chelsea Clinton Barry Diller Michael D. Eisner Bonnie S. Hammer 06) 07) 08) 09) Victor A. Kaufman Joseph Levin David Rosenblatt Alexander von Furstenberg The Board of Directors recommends that you vote FOR proposal 2: 2. To approve the 2018 Stock Plan Proposal. The Board of Directors recommends that you vote FOR proposal 3: 3. Ratification of the appointment of Ernst & Young LLP as IAC's independent registered public accounting firm for 2018. NOTE: Such other business as may properly come before the meeting or any adjournment thereof. E46463-P08000 Voting Items

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