X0306 4 2015-02-10 0 0000800458 RENTRAK CORP RENT 0000806968 WPP plc 27 FARM STREET LONDON X0 W1J 5RJ UNITED KINGDOM 0 0 1 0 0001626653 WPP Luxembourg Gamma Three S.a.r.l. 124 BOULEVARD DE LA PETRUSSE LUXEMBOURG N4 L-2330 LUXEMBOURG 0 0 1 0 Common Stock 2015-02-10 4 P 0 80742 53.1724 A 2679561 I See Footnote Common Stock 2015-02-10 4 P 0 76653 54.1519 A 2756214 I See Footnote Common Stock 2015-02-10 4 P 0 36675 54.8642 A 2792889 I See Footnote Common Stock 2015-02-11 4 P 0 1448 55.5239 A 2794337 I See Footnote Common Stock 2015-02-11 4 P 0 20593 56.2885 A 2814930 I See Footnote Common Stock 2015-02-11 4 P 0 17459 57.0743 A 2832389 I See Footnote Common Stock 2015-02-11 4 P 0 67900 58.4404 A 2900289 I See Footnote Common Stock 2015-02-11 4 P 0 93808 59.2903 A 2994097 I See Footnote Common Stock 2015-02-11 4 P 0 43792 59.8428 A 3037889 I See Footnote The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $52.61 to $53.58, inclusive. The reporting persons undertake to provide to the SEC, Rentrak Corporation, or any securityholder of Rentrak Corporation, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (3) and (4) to this Form 4. These shares are owned directly by WPP Luxembourg Gamma Three S.a r.l., which is a wholly-owned subsidiary of WPP plc that WPP plc owns indirectly through a series of intervening holding companies. WPP plc is an indirect beneficial owner of the reported securities. The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $53.61 to $54.60, inclusive. The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $54.61 to $55.48, inclusive. The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $54.71 to $55.68, inclusive. The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $55.77 to $56.70, inclusive. The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.72 to $57.585, inclusive. The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $57.73 to $58.70, inclusive. The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $58.71 to $59.70, inclusive. The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $59.705 to $60.00, inclusive. WPP plc, By: /s/ Paul Richardson, Group Finance Director 2015-02-12 WPP Luxembourg Gamma Three S.a r.l., By: /s/ Emile van Popering, Manager 2015-02-12 WPP Luxembourg Gamma Three S.a r.l., By: /s/ Michel de Bodt, Manager 2015-02-12