X0306 4 2018-12-10 0 0001666071 Cardlytics, Inc. CDLX 0001204015 SOMERS KIRK C/O CARDLYTICS, INC. 675 PONCE DE LEON AVENUE NE, SUITE 6000 ATLANTA GA 30308 0 1 0 0 Chief Legal & Privacy Officer Common Stock 2018-12-10 4 M 0 75000 A 79591 D Common Stock 2018-12-10 4 S 0 12900 13.68 D 66691 D Common Stock 2018-12-11 4 S 0 13969 13.33 D 52722 D Common Stock 2018-12-12 4 S 0 1 13.76 D 52721 D Performance Stock Unit 2018-12-10 4 M 0 75000 0.00 D Common Stock 75000 0 D Each restricted stock unit represents a contingent right to receive one share of share of the Issuer's Common Stock. Includes 1,923 shares of the Common Stock acquired under the Issuer's Employee Stock Purchase Plan. Shares sold to satisfy withholding tax obligations upon the vesting of restricted stock grants. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.30 - $14.08, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (4) and (5) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.18 - $13.63, inclusive. The performance stock units ("PSUs") vested upon the Compensation Committee of the Issuer's Board of Directors certifying that at least 85,000,000 customers or accounts of the Issuer's financial institution ("FI") partners had logged in and visited the online or mobile banking applications of the Issuer's FI partners featuring the Issuer's Cardlytics Direct product, or opened an email from the Issuer's FI partners featuring the Issuer's Cardlytics Direct product, during a monthly period ("MAUs"). /s/ Kirk Somers 2018-12-12